WO2023055113A1 - 전자 장치 및 이의 동작 방법 - Google Patents
전자 장치 및 이의 동작 방법 Download PDFInfo
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- WO2023055113A1 WO2023055113A1 PCT/KR2022/014634 KR2022014634W WO2023055113A1 WO 2023055113 A1 WO2023055113 A1 WO 2023055113A1 KR 2022014634 W KR2022014634 W KR 2022014634W WO 2023055113 A1 WO2023055113 A1 WO 2023055113A1
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- display
- electronic device
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- processor
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B44/00—Circuit arrangements for operating electroluminescent light sources
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Definitions
- Various embodiments of the present disclosure relate to an electronic device and an operating method thereof.
- OLED displays may include LEDs and driving circuitry for supplying current to the LEDs.
- the power supply of the OLED display can supply a high potential voltage (eg ELVDD voltage) and a low potential voltage (eg ELVSS voltage). Since the electronic device is intended for portability, a battery may be used as a power supply means.
- the power supply uses a boost converter to generate a high potential voltage of about 4.6V (eg ELVDD voltage), and a buck-boost converter to generate a low potential voltage of about -4.4V (eg ELVDD voltage).
- ELVSS voltage can be generated.
- the absolute value of the low potential voltage (e.g. ELVSS voltage) may decrease depending on the brightness of the screen.
- the low potential voltage (e.g., up to about -2V) eg ELVSS voltage) can be lowered.
- the efficiency of a buck-boost must be kept high to minimize battery power consumption.
- the buck-boost circuit Compared to buck or boost converters, the buck-boost circuit has higher efficiency because the voltage applied to the switch is higher under the same input/output conditions and the ripple of the inductor current is larger, resulting in larger losses during switching operation. can be low
- the OLED display operates with minimum power consumption, and ELVSS is set to about -2V, consuming only a minimum current of 10mA.
- the ratio occupied by the switching loss of the buck-boost circuit is increased, and the efficiency is lowered to 60% or less, and the battery use time may be reduced.
- the inverting buck-boost converter circuit may be stopped and the boost converter circuit may be operated. .
- AOD always on display
- An aspect of the present disclosure is to address at least the problems and/or disadvantages noted above and provide at least the advantages described below.
- An embodiment of the present disclosure is an electronic device capable of improving the problem of reducing battery usage time due to switching loss of an inverting buck-boost converter circuit by outputting ELVDD of about 4.6V and ELVSS of about -2.3V, and an electronic device thereof operation method can be provided.
- An electronic device includes a display including a display driver IC (integrated circuit), a power supply device supplying driving power to the display, and operatively connected to the display driver IC and the power supply device. It may include at least one processor, and a memory operatively coupled with the at least one processor. The memory may store instructions for controlling the power supply so that, when executed, the at least one processor supplies different driving power according to the display mode of the display.
- a display driver IC integrated circuit
- a power supply device supplying driving power to the display
- the power supply device operatively connected to the display driver IC and the power supply device. It may include at least one processor, and a memory operatively coupled with the at least one processor.
- the memory may store instructions for controlling the power supply so that, when executed, the at least one processor supplies different driving power according to the display mode of the display.
- An operating method of an electronic device may determine whether a display operates in a normal display mode or a low power display mode. Depending on the normal display mode and the low power display mode, driving of a power supply device supplying driving power to the display may be controlled to supply different driving powers.
- the charge pump circuit unit may supply -Vo/2 voltage (eg, about -2.3V) to the display panel (.
- the high potential voltage e.g, ELVDD voltage
- the low potential voltage e.g., ELVSS voltage
- ELVSS voltage ELVSS voltage
- a pulse voltage having a peak to peak ripple of 1/2 of the output voltage may be formed at the switching node VLX of the boost converter circuit unit.
- an OLED display operates in a power consumption mode (eg, always on display (AOD)) When operating as a furnace, it is possible to increase the battery usage time of the electronic device by increasing the efficiency of the power supply.
- AOD always on display
- FIG. 1 is a block diagram of an electronic device in a network environment according to various embodiments of the present disclosure.
- FIG. 2 is a block diagram of a display module according to various embodiments.
- 3A is a diagram illustrating a first state (eg, an unfolded state or an open state) of an electronic device according to various embodiments of the present disclosure.
- 3B is a diagram illustrating a second state (eg, a folded state or a closed state) of an electronic device according to various embodiments of the present disclosure.
- FIG. 4A is a perspective view of the front of an electronic device according to various embodiments of the present disclosure.
- 4B is a perspective view of a rear surface of an electronic device according to various embodiments of the present disclosure.
- FIG. 5 is a block diagram of a display module according to various embodiments of the present disclosure.
- FIG. 6 is a diagram illustrating a power supply device of an electronic device according to various embodiments of the present disclosure.
- FIG. 7 is a diagram illustrating an example of a boost converter circuit, a charge pump circuit, and an inverting buck-boost converter circuit of the power supply device shown in FIG. 6 .
- FIG. 8 is a diagram illustrating operating waveforms of a power supply device according to various embodiments of the present disclosure.
- FIG. 1 is a block diagram of an electronic device 101 within a network environment 100 according to various embodiments of the present disclosure.
- an electronic device 101 communicates with an electronic device 102 through a first network 198 (eg, a short-range wireless communication network) or through a second network 199. It may communicate with at least one of the electronic device 104 or the server 108 through (eg, a long-distance wireless communication network). According to the disclosed embodiment, the electronic device 101 may communicate with the electronic device 104 through the server 108 . According to the disclosed embodiment, the electronic device 101 includes a processor 120, a memory 130, an input module 150, an audio output module 155, a display module 160, an audio module 170, and a sensor module.
- connection terminal 172 In some embodiments, in the electronic device 101, at least one of these components (eg, the connection terminal 178) may be omitted or one or more other components may be added. In some embodiments, some of these components (eg, sensor module 176, camera module 180, or antenna module 197) are integrated into one component (eg, display module 160). It can be.
- the processor 120 for example, executes software (eg, the program 140) to cause at least one other component (eg, hardware or software component) of the electronic device 101 connected to the processor 120. It can control and perform various data processing or calculations. According to one disclosed embodiment, as at least part of data processing or operation, the processor 120 sends commands or data received from other components (eg, sensor module 176 or communication module 190) to volatile memory 132. ), process the commands or data stored in the volatile memory 132, and store the resulting data in the non-volatile memory 134.
- software eg, the program 140
- the processor 120 sends commands or data received from other components (eg, sensor module 176 or communication module 190) to volatile memory 132. ), process the commands or data stored in the volatile memory 132, and store the resulting data in the non-volatile memory 134.
- the processor 120 includes a main processor 121 (eg, a central processing unit or an application processor) or a secondary processor 123 (eg, a graphic processing unit, a neural network processing unit) that can operate independently or together with the main processor 121 (NPU: neural processing unit), image signal processor, sensor hub processor, or communication processor).
- main processor 121 eg, a central processing unit or an application processor
- secondary processor 123 eg, a graphic processing unit, a neural network processing unit
- the main processor 121 NPU: neural processing unit
- image signal processor image signal processor
- sensor hub processor or communication processor
- the secondary processor 123 may be implemented separately from or as part of the main processor 121 .
- the secondary processor 123 may, for example, take the place of the main processor 121 while the main processor 121 is in an inactive (eg, sleep) state, or the main processor 121 is active (eg, running an application). ) state, together with the main processor 121, at least one of the components of the electronic device 101 (eg, the display module 160, the sensor module 176, or the communication module 190) It is possible to control at least some of the related functions or states.
- the auxiliary processor 123 eg, an image signal processor or a communication processor
- the auxiliary processor 123 may include a hardware structure specialized for processing an artificial intelligence model.
- AI models can be created through machine learning. Such learning may be performed, for example, in the electronic device 101 itself where the artificial intelligence model is performed, or may be performed through a separate server (eg, the server 108).
- the learning algorithm may include, for example, supervised learning, unsupervised learning, semi-supervised learning or reinforcement learning, but in the above example Not limited.
- the artificial intelligence model may include a plurality of artificial neural network layers.
- Artificial neural networks include deep neural networks (DNNs), convolutional neural networks (CNNs), recurrent neural networks (RNNs), restricted boltzmann machines (RBMs), deep belief networks (DBNs), bidirectional recurrent deep neural networks (BRDNNs), It may be one of deep Q-networks or a combination of two or more of the foregoing, but is not limited to the foregoing examples.
- the artificial intelligence model may include, in addition or alternatively, software structures in addition to hardware structures.
- the memory 130 may store various data used by at least one component (eg, the processor 120 or the sensor module 176) of the electronic device 101 .
- the data may include, for example, input data or output data for software (eg, program 140) and commands related thereto.
- the memory 130 may include volatile memory 132 or non-volatile memory 134 .
- the program 140 may be stored as software in the memory 130 and may include, for example, an operating system 142 , middleware 144 , or an application 146 .
- the input module 150 may receive a command or data to be used by a component (eg, the processor 120) of the electronic device 101 from the outside of the electronic device 101 (eg, a user).
- the input module 150 may include, for example, a microphone, a mouse, a keyboard, a key (eg, a button), or a digital pen (eg, a stylus pen).
- the sound output module 155 may output sound signals to the outside of the electronic device 101 .
- the sound output module 155 may include, for example, a speaker or a receiver.
- the speaker can be used for general purposes such as multimedia playback or recording playback.
- a receiver may be used to receive an incoming call. According to the disclosed embodiment, the receiver may be implemented separately from the speaker or as part of it.
- the display module 160 may visually provide information to the outside of the electronic device 101 (eg, a user).
- the display module 160 may include, for example, a display, a hologram device, or a projector and a control circuit for controlling the device.
- the display module 160 may include a touch sensor configured to detect a touch or a pressure sensor configured to measure the intensity of force generated by the touch.
- the audio module 170 may convert sound into an electrical signal or vice versa. According to the disclosed embodiment, the audio module 170 acquires sound through the input module 150, the sound output module 155, or an external electronic device connected directly or wirelessly to the electronic device 101 (eg : Sound may be output through the electronic device 102) (eg, a speaker or a headphone).
- the audio module 170 acquires sound through the input module 150, the sound output module 155, or an external electronic device connected directly or wirelessly to the electronic device 101 (eg : Sound may be output through the electronic device 102) (eg, a speaker or a headphone).
- the sensor module 176 detects an operating state (eg, power or temperature) of the electronic device 101 or an external environmental state (eg, a user state), and generates an electrical signal or data value corresponding to the detected state. can do.
- the sensor module 176 may include, for example, a gesture sensor, a gyro sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, and a biometric sensor. , a temperature sensor, a humidity sensor, or an illuminance sensor.
- the interface 177 may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device 101 to an external electronic device (eg, the electronic device 102).
- the interface 177 may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.
- HDMI high definition multimedia interface
- USB universal serial bus
- SD card interface Secure Digital Card interface
- audio interface audio interface
- connection terminal 178 may include a connector through which the electronic device 101 may be physically connected to an external electronic device (eg, the electronic device 102).
- the connection terminal 178 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector).
- the haptic module 179 may convert electrical signals into mechanical stimuli (eg, vibration or motion) or electrical stimuli that a user may perceive through tactile or kinesthetic senses.
- the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.
- the camera module 180 may capture still images and moving images. According to the disclosed embodiment, the camera module 180 may include one or more lenses, image sensors, image signal processors, or flashes.
- the power management module 188 may manage power supplied to the electronic device 101 .
- the power management module 188 may be implemented as at least part of a power management integrated circuit (PMIC), for example.
- PMIC power management integrated circuit
- the battery 189 may supply power to at least one component of the electronic device 101 .
- the battery 189 may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.
- the communication module 190 is a direct (eg, wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (eg, the electronic device 102, the electronic device 104, or the server 108). Establishment and communication through the established communication channel may be supported.
- the communication module 190 may include one or more communication processors that operate independently of the processor 120 (eg, an application processor) and support direct (eg, wired) communication or wireless communication.
- the communication module 190 is a wireless communication module 192 (eg, a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 194 ( Example: a local area network (LAN) communication module, or a power line communication module).
- a corresponding communication module is a first network 198 (eg, a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network 199 (eg, a legacy communication module).
- the wireless communication module 192 uses subscriber information (eg, International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module 196 within a communication network such as the first network 198 or the second network 199.
- IMSI International Mobile Subscriber Identifier
- the wireless communication module 192 may support a 5G network after a 4G network and a next-generation communication technology, for example, NR access technology (new radio access technology).
- NR access technologies include high-speed transmission of high-capacity data (enhanced mobile broadband (eMBB)), minimization of terminal power and access of multiple terminals (massive machine type communications (mMTC)), or high reliability and low latency (ultra-reliable and low latency (URLLC)).
- eMBB enhanced mobile broadband
- mMTC massive machine type communications
- URLLC ultra-reliable and low latency
- -latency communications can be supported.
- the wireless communication module 192 may support a high frequency band (eg, mmWave band) to achieve a high data rate, for example.
- the wireless communication module 192 uses various technologies for securing performance in a high frequency band, such as beamforming, massive multiple-input and multiple-output (MIMO), and full-dimensional multiplexing. Technologies such as input/output (FD-MIMO: full dimensional MIMO), array antenna, analog beam-forming, or large scale antenna may be supported.
- the wireless communication module 192 may support various requirements defined for the electronic device 101, an external electronic device (eg, the electronic device 104), or a network system (eg, the second network 199).
- the wireless communication module 192 is capable of realizing peak data rate (eg, 20 Gbps or more) for realizing eMBB, loss coverage (eg, 164 dB or less) for realizing mMTC, or U-plane latency for realizing URLLC. (e.g., 0.5 ms or less for downlink (DL) and uplink (UL), or 1 ms or less for round trip).
- peak data rate e.g, 20 Gbps or more
- loss coverage e.g, 164 dB or less
- U-plane latency for realizing URLLC.
- the antenna module 197 may transmit or receive signals or power to the outside (eg, an external electronic device).
- the antenna module 197 may include an antenna including a radiator formed of a conductor or a conductive pattern formed on a substrate (eg, PCB).
- the antenna module 197 may include a plurality of antennas (eg, an array antenna). In this case, at least one antenna suitable for a communication method used in a communication network such as the first network 198 or the second network 199 is selected from the plurality of antennas by the communication module 190, for example. can be chosen A signal or power may be transmitted or received between the communication module 190 and an external electronic device through the selected at least one antenna.
- other components eg, a radio frequency integrated circuit (RFIC) may be additionally formed as a part of the antenna module 197 in addition to the radiator.
- RFIC radio frequency integrated circuit
- the antenna module 197 may form a mmWave antenna module.
- the mmWave antenna module is a printed circuit board, an RFIC disposed on or adjacent to a first surface (eg, bottom surface) of the printed circuit board and capable of supporting a designated high frequency band (eg, mmWave band).
- a plurality of antennas eg, array antennas
- the second surface eg, the top surface or side surface
- peripheral devices eg, a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)
- signal e.g. commands or data
- commands or data may be transmitted or received between the electronic device 101 and the external electronic device 104 through the server 108 connected to the second network 199 .
- Each of the external electronic devices 102 or 104 may be the same as or different from the electronic device 101 .
- all or part of operations executed in the electronic device 101 may be executed in one or more external electronic devices among the external electronic devices 102 , 104 , or 108 .
- the electronic device 101 when the electronic device 101 needs to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device 101 instead of executing the function or service by itself.
- one or more external electronic devices may be requested to perform the function or at least part of the service.
- One or more external electronic devices receiving the request may execute at least a part of the requested function or service or an additional function or service related to the request, and deliver the execution result to the electronic device 101 .
- the electronic device 101 may provide the result as at least part of a response to the request as it is or additionally processed.
- cloud computing distributed computing, mobile edge computing (MEC), or client-server computing technology may be used.
- the electronic device 101 may provide an ultra-low latency service using, for example, distributed computing or mobile edge computing.
- the external electronic device 104 may include an internet of things (IoT) device.
- Server 108 may be an intelligent server using machine learning and/or neural networks.
- the external electronic device 104 or server 108 may be included in the second network 199 .
- the electronic device 101 may be applied to intelligent services (eg, smart home, smart city, smart car, or health care) based on 5G communication technology and IoT-related technology.
- Electronic devices may be devices of various types.
- the electronic device may include, for example, a portable communication device (eg, a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance.
- a portable communication device eg, a smart phone
- a computer device e.g., a smart phone
- a portable multimedia device e.g., a portable medical device
- a camera e.g., a portable medical device
- a camera e.g., a portable medical device
- a camera e.g., a camera
- a wearable device e.g., a smart bracelet
- first, second, or first or secondary may simply be used to distinguish that component from other corresponding components, and may refer to that component in other respects (eg, importance or order) is not limited.
- a (eg, first) component is said to be “coupled” or “connected” to another (eg, second) component, with or without the terms “functionally” or “communicatively.”
- the certain component may be connected to the other component directly (eg by wire), wirelessly, or through a third component.
- module used in various embodiments of the present disclosure may include a unit implemented in hardware, software, or firmware, and is interchangeably with terms such as, for example, logic, logical blocks, parts, or circuits. can be used
- a module may be an integrally constructed component or a minimal unit of components or a portion thereof that performs one or more functions.
- the module may be implemented in the form of an application-specific integrated circuit (ASIC).
- ASIC application-specific integrated circuit
- a storage medium eg, the internal memory 136 or the external memory 138
- a machine eg, the electronic device 101
- a processor eg, the processor 120
- a device eg, the electronic device 101
- the one or more instructions may include code generated by a compiler or code executable by an interpreter.
- the device-readable storage medium may be provided in the form of a non-transitory storage medium.
- the storage medium is a tangible device and does not contain a signal (e.g. electromagnetic wave), and this term refers to the case where data is stored semi-permanently in the storage medium. It does not discriminate when it is temporarily stored.
- a signal e.g. electromagnetic wave
- the method according to various embodiments disclosed in this document may be included and provided in a computer program product.
- Computer program products may be traded between sellers and buyers as commodities.
- a computer program product is distributed in the form of a device-readable storage medium (e.g. compact disc read only memory (CD-ROM)), or through an application store (e.g. Play Store TM ) or on two user devices (e.g. It can be distributed (eg downloaded or uploaded) online, directly between smart phones.
- a device e.g. compact disc read only memory (CD-ROM)
- an application store e.g. Play Store TM
- two user devices e.g. It can be distributed (eg downloaded or uploaded) online, directly between smart phones.
- at least part of the computer program product may be temporarily stored or temporarily created in a storage medium readable by a device such as a manufacturer's server, an application store server, or a relay server's memory.
- each component (eg, module or program) of the components described above may include a single object or a plurality of objects, and some of the multiple objects may be separately disposed in other components.
- one or more components or operations among the aforementioned components may be omitted, or one or more other components or operations may be added.
- a plurality of components eg modules or programs
- the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by a corresponding component of the plurality of components prior to the integration. .
- operations performed by modules, programs, or other components are executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations are executed in a different order, omitted, or , or one or more other operations may be added.
- the display module 160 shown in FIG. 1 is a variable display (eg, a screen size) configured to be expanded in a first direction (eg, a vertical direction or a y-axis direction).
- Flexible display eg, stretchable display
- expandable display may be included.
- the display module 160 shown in FIG. 1 is in a second direction (eg, a horizontal direction, an x-axis direction) orthogonal to the first direction (eg, a vertical direction and a y-axis direction).
- a flexible display eg, a flexible display
- a stretchable display e.g, an expandable display
- an area e.g, screen size
- the display module 160 shown in FIG. 1 has an area (eg, a vertical direction and a y-axis direction) and a second direction (eg, a horizontal direction and an x-axis direction).
- a second direction eg, a horizontal direction and an x-axis direction
- expandable eg, flexible display
- stretchable display eg, expandable display
- the display module 160 illustrated in FIG. 1 may include a flexible display configured to be folded or unfolded.
- the display module 160 illustrated in FIG. 1 may include a flexible display that is slidably disposed to provide a screen (eg, a display screen).
- the display module 160 may also be referred to as a flexible display (eg, a stretchable display), an expandable display, or a slide-out display.
- the display module 160 shown in FIG. 1 may include a bar type or plate type display.
- FIG. 2 is a block diagram of a display module 160 according to various embodiments.
- the display module 160 includes a display 200 and a display driver IC 230 (hereinafter referred to as 'DDI 230') for controlling the display 200.
- 'DDI 230' a display driver IC 230 for controlling the display 200.
- the DDI 230 may include an interface module 231 , a memory 233 (eg, a buffer memory), an image processing module 235 , and/or a mapping module 237 .
- the DDI 230 transmits image data or image information including image control signals corresponding to commands for controlling the image data to an electronic device (eg, FIG. 1 ) through the interface module 231. can be received from other components of the electronic device 101).
- the image information is independent of the function of a processor (eg, the processor 120 of FIG. 1) (eg, the main processor 121 of FIG. 1) (eg, the application processor) or the main processor 121. It may be received from an auxiliary processor (eg, the auxiliary processor 123 of FIG. 1) (eg, a graphic processing unit) operated by .
- a processor eg, the processor 120 of FIG. 1
- the main processor 121 of FIG. 1 eg, the application processor
- auxiliary processor eg, the auxiliary processor 123 of FIG. 1
- a graphic processing unit operated by .
- the DDI 230 may communicate with the touch circuit 250 or the sensor module 176 through the interface module 231 . Also, the DDI 230 may store at least some of the received image information in the memory 233 . As an example, the DDI 230 may store at least some of the received image information in the memory 233 in units of frames.
- the image processing module 235 pre-processes or post-processes at least a portion of the image data based on characteristics of the image data or characteristics of the display 200 (eg, resolution, brightness, or size). adjustment) can be performed.
- the mapping module 237 may generate a voltage value or current value corresponding to the image data preprocessed or postprocessed through the image processing module 235 .
- the generation of the voltage value or the current value is at least partially dependent on the properties of the pixels of the display 200 (eg, the arrangement of pixels (RGB stripe or pentile structure) or the size of each sub-pixel). can be performed based on
- At least some pixels of the display 200 are driven based at least in part on the voltage value or current value, so that visual information (eg, text, image, and/or icon) corresponding to the image data is displayed. It can be displayed through (200).
- visual information eg, text, image, and/or icon
- the display module 160 may further include a touch circuit 250.
- the touch circuit 250 may include a touch sensor 251 and a touch sensor IC 253 for controlling the touch sensor 251 .
- the touch sensor IC 253 may control the touch sensor 251 to detect a touch input or a hovering input to a specific location of the display 200 .
- the touch sensor IC 253 may detect a touch input or a hovering input by measuring a change in a signal (eg, voltage, light amount, resistance, or charge amount) for a specific position of the display 200 .
- the touch sensor IC 253 may provide information (eg, position, area, pressure, or time) related to the sensed touch input or hovering input to a processor (eg, the processor 120 of FIG. 1 ).
- At least a part of the touch circuit 250 may be included as a part of the display driver IC 230 or the display 200.
- At least a portion of the touch circuit 250 is a part of other components (eg, the auxiliary processor 123) disposed outside the display module 160. can be included
- the display module 160 further includes at least one sensor of the sensor module 176 (eg, an extended detection sensor, a fingerprint sensor, an iris sensor, a pressure sensor, or an illuminance sensor), or a control circuit therefor.
- the at least one sensor or a control circuit thereof may be embedded in a part of the display module 160 (eg, the display 200 or the DDI 230) or a part of the touch circuit 250.
- the sensor module 176 embedded in the display module 160 includes a biometric sensor (eg, a fingerprint sensor)
- the biometric sensor provides biometric information associated with a touch input through a partial area of the display 200. (e.g. fingerprint image) can be acquired.
- the pressure sensor may acquire pressure information associated with a touch input through a part or the entire area of the display 200.
- the sensor module 176 embedded in the display module 160 includes an expansion detection sensor
- the expansion detection sensor detects a change in area (eg, screen size) of a display (eg, a flexible display).
- the touch sensor 251 or the sensor module 176 may be disposed between pixels of a pixel layer of the display 200 or above or below the pixel layer.
- 3A is a diagram illustrating a first state (eg, an unfolded state or an open state) of an electronic device according to various embodiments of the present disclosure.
- 3B is a diagram illustrating a second state (eg, a folded state or a closed state) of an electronic device according to various embodiments of the present disclosure.
- an electronic device 300 (eg, the electronic device 101 of FIG. 1 ) includes a housing 310 and a display 320 disposed in a space formed by the housing 310.
- the display 320 may include a flexible display or a foldable display.
- the surface on which the display 320 is disposed may be defined as a first surface or a front surface of the electronic device 300 (eg, a surface on which a screen is displayed when unfolded). Also, a surface opposite to the front surface may be defined as a second surface or a rear surface of the electronic device 300 . Also, a surface surrounding the space between the front and rear surfaces may be defined as a third surface or a side surface of the electronic device 300 .
- the folding region 323 may be folded or unfolded in a second direction (eg, an x-axis direction) based on a folding axis (eg, an A-axis).
- the housing 310 includes a first housing structure 311, a second housing structure 312 including a sensor area 324, a first rear cover 380, a hinge cover 313, And it may include a second rear cover (390).
- the housing 310 of the electronic device 101 is not limited to the shape and combination shown in FIGS. 3A and 3B , and may be implemented by other shapes or combinations and/or combinations of parts.
- the first housing structure 311 and the first rear cover 380 may be integrally formed, and the second housing structure 312 and the second rear cover 390 may be integrally formed. can be formed
- the first housing structure 311 and the second housing structure 312 are disposed on both sides of the folding axis A, and may have a generally symmetrical shape with respect to the folding axis A. .
- the first housing structure 311 and the second housing structure 312 determine whether the state of the electronic device 300 is an unfolded state (eg, a first state), a folded state (eg, a second state), or an intermediate state ( Example: Depending on whether they are in the third state (intermediate state), the angle or distance they form may vary.
- the second housing structure 312 unlike the first housing structure 311, the sensor area 324 where various sensors (eg, an illuminance sensor, an iris sensor, and/or an image sensor) are disposed. ), but may have mutually symmetrical shapes in other regions.
- various sensors eg, an illuminance sensor, an iris sensor, and/or an image sensor
- At least one sensor may be disposed in the lower portion and/or bezel area of the display as well as the sensor area 324 .
- the first housing structure 311 and the second housing structure 312 may form a recess accommodating the display 320 together.
- the recess may have two or more different widths in a direction orthogonal to the folding axis A (eg, an x-axis direction).
- the recess is formed at the edge of the sensor region 324 of the first portion 311a of the first housing structure 311 and the second housing structure 312. It may have a first width W1 between the first portions 312a.
- the recess corresponds to the second portion 311b of the first housing structure 311 parallel to the folding axis A of the first housing structure 311 and the sensor area 324 of the second housing structure 312.
- It may have a second width W2 formed by the second part 312b of the second housing structure 312 parallel to the folding axis A without being bent.
- the second width W2 may be longer than the first width W1.
- first part 311a of the first housing structure 311 and the first part 312a of the second housing structure 312 having mutually asymmetric shapes form the first width W1 of the recess. can do.
- the second portion 311b of the first housing structure 311 and the second portion 312b of the second housing structure 312 having mutually symmetrical shapes may form the second width W2 of the recess. .
- the first part 312a and the second part 312b of the second housing structure 312 may have different distances from the folding axis A.
- the width of the recess is not limited to the illustrated example.
- the recess may have a plurality of widths due to the shape of the sensor area 324 or the asymmetrical shape of the first housing structure 311 and the second housing structure 312 .
- At least a portion of the first housing structure 311 and the second housing structure 312 may be formed of a metal material or a non-metal material having a rigidity of a size selected to support the display 320 .
- the sensor area 324 may be formed to have a predetermined area adjacent to one corner of the second housing structure 312 .
- the arrangement, shape, and size of the sensor area 324 are not limited to the illustrated example.
- the sensor area 324 may be provided at another corner of the second housing structure 312 or any area between the top corner and the bottom corner.
- components for performing various functions embedded in the electronic device 300 are electronically transmitted through the sensor area 324 or through one or more openings provided in the sensor area 324. It may be exposed on the front surface of the device 300 .
- the components may include various types of sensors.
- the sensor may include, for example, at least one of an illuminance sensor, a front camera (eg, a camera module), a receiver, or a proximity sensor.
- the first rear cover 380 is disposed on one side of the folding axis A on the rear side of the electronic device, may have, for example, a substantially rectangular periphery, and the first housing structure 311 ) The edge may be wrapped by.
- the second rear cover 390 may be disposed on the other side of the folding axis A on the rear surface of the electronic device, and its edge may be wrapped by the second housing structure 312 .
- the first rear cover 380 and the second rear cover 390 may have substantially symmetrical shapes around the folding axis A.
- the first rear cover 380 and the second rear cover 390 do not necessarily have symmetrical shapes, and in another embodiment, the electronic device 300 includes various shapes of the first rear cover 380 and A second rear cover 390 may be included.
- the first rear cover 380 may be integrally formed with the first housing structure 311, and the second rear cover 390 may be integrally formed with the second housing structure 312. there is.
- the first rear cover 380, the second rear cover 390, the first housing structure 311, and the second housing structure 312 are various parts of the electronic device 300 (eg : A space in which a printed circuit board or battery) can be disposed can be formed.
- one or more components may be disposed or visually exposed on the back of the electronic device 300 .
- at least a portion of the sub display 330 may be visually exposed through the first rear area 382 of the first rear cover 380 .
- one or more parts or sensors may be visually exposed through the second rear area 392 of the second rear cover 390 .
- the sensor may include an illuminance sensor, a proximity sensor, and/or a rear camera.
- the hinge cover 313 may be disposed between the first housing structure 311 and the second housing structure 312 to cover an internal part (eg, a hinge structure). .
- the hinge cover 313 may cover a portion where the first housing structure 311 and the second housing structure 312 come into contact with each other when the electronic device 300 is expanded and folded.
- the hinge cover 313 may include a first housing structure 311 and a second housing structure (according to a state (flat state or folded state) of the electronic device 101). 312) or may be exposed to the outside.
- the hinge cover 313 when the electronic device 101 is in an unfolded state, the hinge cover 313 is formed by the first housing structure 311 and the second housing structure. It may not be exposed because it is covered by 312.
- the hinge cover 313 when the electronic device 101 is in a folded state (eg, fully folded state), the hinge cover 313 is a first housing structure. 311 and may be exposed to the outside between the second housing structure 312.
- the first housing structure 311 and the second housing structure 312 form a predetermined angle (folded with a In the case of a certain angle intermediate state (eg, the third state), the hinge cover 313 may be partially exposed to the outside between the first housing structure 311 and the second housing structure 312. However, in this case An exposed area may be less than a fully folded state As an embodiment, the hinge cover 313 may include a curved surface.
- the display 320 may be disposed on a space formed by the housing 310 .
- the display 320 is seated on a recess formed by the housing 310 and may constitute most of the front surface of the electronic device 300 .
- the front surface of the electronic device 300 may include the display 320 , a partial area of the first housing structure 311 adjacent to the display 320 , and a partial area of the second housing structure 312 .
- the rear surface of the electronic device 300 includes the first rear cover 380, a partial area of the first housing structure 311 adjacent to the first rear cover 380, the second rear cover 390, and the second rear cover. A portion of the second housing structure 312 adjacent to 390 may be included.
- the display 320 may refer to a display in which at least a partial area may be deformed into a flat or curved surface.
- the display 320 includes a folding area 323, a first area 321 disposed on one side (eg, left side in FIG. 3A) and the other side (right side in FIG. 3A) based on the folding area 323. It may include a second area 322 disposed on.
- the display 320 may include a top emission or bottom emission type OLED display.
- An OLED display may include a low temperature color filter (LTCF) layer, window glass (e.g., ultra-thin glass (UTG) or polymer window), and an optical compensation film (e.g., optical compensation film (OCF)).
- LTCF low temperature color filter
- window glass e.g., ultra-thin glass (UTG) or polymer window
- OCF optical compensation film
- the polarizing film or polarizing layer
- the area division of the display 320 is exemplary, and the display 320 may be divided into a plurality of (eg, two or more) areas according to a structure or function. As an embodiment, the area of the display 320 may be divided by the folding area 323 extending parallel to the y-axis or the folding axis A, but in another embodiment, the display 320 may have another folding area ( For example, the region may be divided based on a folding region parallel to the x-axis) or another folding axis (eg, a folding axis parallel to the x-axis).
- first region 321 and the second region 322 may have generally symmetrical shapes around the folding region 323 .
- the first housing structure 311 and the second housing structure 312 form an angle of about 180 degrees and move in the same direction. can be placed facing up.
- the surface of the first area 321 and the surface of the second area 322 of the display 320 form an angle of about 180 degrees to each other and may face the same direction (eg, the front surface of the electronic device).
- the folding region 323 may form substantially the same plane as the first region 321 and the second region 322 .
- the first housing structure 311 and the second housing structure 312 may face each other.
- the surface of the first area 321 and the surface of the second area 322 of the display 320 form a narrow angle (eg, between 0 degrees and about 10 degrees) and may face each other.
- At least a portion of the folding region 323 may be formed of a curved surface having a predetermined curvature.
- the first housing structure 311 and the second housing structure 312 may be disposed at a certain angle to each other.
- Electronic devices may include electronic devices such as a bar type, a foldable type, a rollable type, a sliding type, a wearable type, a tablet PC, and/or a notebook PC.
- the electronic device 300 according to various embodiments of the present document is not limited to the above example and may include various other electronic devices.
- 4A is a perspective view of the front of an electronic device according to various embodiments of the present disclosure.
- 4B is a perspective view of a rear surface of an electronic device according to various embodiments of the present disclosure.
- an electronic device 400 (eg, the electronic device 101 of FIG. 1 ) according to various embodiments of the present disclosure has a first surface (or front surface) 410A and a second surface. (or rear) 410B, and housing 410 .
- a display 401 (eg, the display module 160 of FIG. 1 ) may be disposed in the space formed by the housing 410 .
- the housing 410 may include a side surface 410C surrounding a space between the first surface 410A and the second surface 410B.
- the housing 410 may refer to a structure forming some of the first face 410A, the second face 410B, and the side face 410C.
- the first surface 410A may be formed by a front plate 402 (eg, a glass plate or a polymer plate including various coating layers) that is at least partially transparent.
- a front plate 402 eg, a glass plate or a polymer plate including various coating layers
- the second surface 410B may be formed by the substantially opaque back plate 411 .
- the rear plate 411 is formed, for example, of coated or tinted glass, ceramic, polymer, metal (eg, aluminum, stainless steel (STS), or magnesium), or a combination of at least two of the foregoing materials. It can be. However, it is not limited thereto, and the back plate 411 may be formed of transparent glass.
- the side surface 410C is coupled to the front plate 402 and the back plate 411 and is attached to the side bezel structure 418 (or “side member”) including metal and/or polymer.
- side bezel structure 418 or “side member”
- the back plate 411 and the side bezel structure 418 may be integrally formed and include the same material (eg, a metal material such as aluminum).
- the front plate 402 may include two first regions 410D that are curved and seamlessly extended from the first surface 410A toward the rear plate 411 .
- the two first regions 410D may be disposed at both ends of a long edge of the front plate 402 .
- the rear plate 411 may include two second regions 410E that are curved and seamlessly extended from the second surface 410B toward the front plate 402 .
- the front plate 402 may include only one of the first regions 410D (or the second regions 410E). In some embodiments, some of the first regions 410D or the second regions 410E may not be included.
- the side bezel structure 418 when viewed from the side of the electronic device 400, has the first area 410D or the second area 410E. It has a thickness (or width), and may have a second thickness smaller than the first thickness at a side surface including the first regions 410D or the second regions 410E.
- the electronic device 400 includes a display 401 (eg, the display module 160 of FIG. 1 ), an audio input device 403 (eg, the input module 150 of FIG. 1 ), Audio output devices 407 and 414 (eg, sound output module 155 of FIG. 1 ), sensor modules 404 and 419 (eg, sensor module 176 of FIG. 1 ), and camera modules 405 and 412 ( Example: At least one of the camera module 180 of FIG. 1 ), a flash 413, a key input device 417, an indicator (not shown), and connectors 408 and 409 may be included.
- the electronic device 400 may omit at least one of the components (eg, the key input device 417) or may additionally include other components.
- the display 401 may be visually visible through an upper portion of the front plate 402 .
- at least a portion of the display 401 may be visible through the front plate 402 forming the first surface 410A and the first area 410D of the side surface 410C.
- the display 401 may be combined with or disposed adjacent to a touch sensing circuit, a pressure sensor capable of measuring the intensity (pressure) of a touch, and/or a digitizer that detects a magnetic field type stylus pen.
- At least one of a sensor module 404, a camera module 405 (eg, an image sensor), an audio module 414, and a fingerprint sensor is included on the rear surface of the screen display area of the display 401. can do.
- the display 401 may be combined with or disposed adjacent to a touch sensing circuit, a pressure sensor capable of measuring the strength (pressure) of a touch, and/or a digitizer detecting a magnetic stylus pen. there is.
- At least a portion of the sensor modules 404 and 419 and/or at least a portion of the key input device 417 are located in the first areas 410D and/or the second area 410E. can be placed in the field.
- the audio input device 403 may include a microphone.
- the input device 403 may include a plurality of microphones arranged to sense the direction of sound.
- the sound output devices 407 and 414 may include an external speaker 407 and a receiver for communication (eg, the audio module 414).
- the audio input device 403 eg, a microphone
- the audio output devices 407 and 414, and the connectors 408 and 409 are disposed in the internal space of the electronic device 400 and formed in the housing 410. It may be exposed to the external environment through at least one hole.
- the hole formed in the housing 410 may be commonly used for the audio input device 403 (eg, a microphone) and the audio output devices 407 and 414 .
- the sound output devices 407 and 414 may include a speaker (eg, a piezo speaker) operated while excluding holes formed in the housing 410 .
- the sensor modules 404 and 419 may include an electrical signal corresponding to an internal operating state of the electronic device 400 or an external environmental state; Data values can be created.
- the sensor modules 404 and 419 may include, for example, a first sensor module 404 (eg, a proximity sensor) disposed on the first surface 410A of the housing 410 and/or a first sensor module 404 (eg, a proximity sensor) of the housing 410.
- a second sensor module 419 eg, an HRM sensor
- a third sensor module not shown
- a fingerprint sensor disposed on the second surface 410B
- the fingerprint sensor may be disposed on the first surface 410A (eg, the display 401 ) and/or the second surface 410B of the housing 410 .
- the electronic device 400 includes a sensor module (not shown), for example, a gesture sensor, a gyro sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a color sensor, an IR (infrared) sensor, a bio sensor, a temperature sensor, At least one of a humidity sensor and an illuminance sensor may be further included.
- the camera modules 405 and 412 include the first camera module 405 disposed on the first surface 410A of the electronic device 400 and the second camera module 405 disposed on the second surface 410B of the electronic device 400. It may include 2 camera modules 412 .
- a flash 413 may be disposed around the camera modules 405 and 412 .
- the camera modules 405 and 412 may include one or more lenses, an image sensor, and/or an image signal processor.
- the flash 413 may include, for example, a light emitting diode or a xenon lamp.
- the first camera module 405 may be disposed below the display panel of the display 401 in an under display camera (UDC) method.
- two or more lenses (wide-angle and telephoto lenses) and image sensors may be disposed on one surface of the electronic device 400 .
- a plurality of first camera modules 405 may be disposed on a first surface (eg, a surface on which a screen is displayed) of the electronic device 400 in an under display camera (UDC) method.
- the key input device 417 may be disposed on the side surface 410C of the housing 410 .
- the electronic device 400 may not include some or all of the above-mentioned key input devices 417, and the key input devices 417 that are not included may include other key input devices such as soft keys on the display 401. can be implemented in the form In some embodiments, the key input device 417 may be implemented using a pressure sensor included in the display 401 .
- the connectors 408 and 409 include a first connector hole 408 capable of receiving a connector (eg, a USB connector) for transmitting and receiving power and/or data to and from an external electronic device; and / or may include a second connector hole 409 (or earphone jack) capable of receiving a connector for transmitting and receiving an audio signal to and from an external electronic device.
- the first connector hole 408 may include a universal serial bus (USB) A type port or a USB C type port.
- USB Type-C the electronic device 400 (eg, the electronic device 101 of FIG. 1 ) may support USB power delivery (PD) charging.
- some of the camera modules 405 of the camera modules 405 and 412 and/or some of the sensor modules 404 of the sensor modules 404 and 419 are visually visible through the display 401. can be placed.
- the camera module 405 when the camera module 405 is disposed in an under display camera (UDC) method, the camera module 405 may not be visually visible to the outside.
- UDC under display camera
- the camera module 405 may be disposed overlapping with the display area, and the screen may be displayed in the display area corresponding to the camera module 405 .
- Some sensor modules 404 may be arranged to perform their functions without being visually exposed through the front plate 402 in the internal space of the electronic device.
- FIG. 5 is a block diagram of a display module according to various embodiments of the present disclosure.
- the display module 160 shown in FIG. 5 is at least partially similar to the display module 160 shown in FIGS. 1 and/or 2 , or may include a different embodiment.
- the display module 160 includes a display panel 510, a data controller 520, a gate controller 530, a timing controller 540, and a memory 550 (eg, DRAM). (dynamic random access memory)), and a power supply 560 (eg, the power supply 600 of FIG. 6 ).
- a display panel 510 e.g, a data controller 520, a gate controller 530, a timing controller 540, and a memory 550 (eg, DRAM). (dynamic random access memory)), and a power supply 560 (eg, the power supply 600 of FIG. 6 ).
- DRAM dynamic random access memory
- At least some of the data controller 520, the gate controller 530, the timing controller 540, and/or the memory 550 are DDI (eg, DDI 230 of FIG. 2).
- the data control unit 520, the timing control unit 540, and/or the memory 550 may be connected to the DDI 230 (eg, the DDI of FIG. 2). 230)).
- the gate controller 530 may be disposed in a non-display area (eg, a bezel area) of the display panel 510 .
- the display panel 510 may include a plurality of gate lines GL and a plurality of data lines DL.
- the plurality of data lines DL may be formed in a first direction (eg, a vertical direction in FIG. 5 ) and arranged at designated intervals.
- the plurality of gate lines GL may be formed in a second direction substantially perpendicular to the first direction (eg, a horizontal direction in FIG. 5 ) and may be disposed at predetermined intervals.
- the “scan direction of the display panel 510” may be defined as a vertical direction (eg, a horizontal direction in FIG. 5 ) in which the gate lines GL are formed.
- the scan direction of the display panel 510 is a first direction (substantially perpendicular to the second direction).
- a pixel P may be disposed in each of partial regions of the display panel 510 where the plurality of gate lines GL and the plurality of data lines DL intersect. According to the disclosed embodiment, each pixel P may display a designated gray level as it is electrically connected to the gate line GL and the data line DL.
- the power supply 560 may generate driving voltages ELVDD and ELVSS for emitting light of the plurality of pixels P disposed on the display panel 510 .
- the power supply 560 may supply driving voltages ELVDD and ELVSS to the display panel 510 .
- each pixel P may receive a gate scan signal and a light emitting signal through the gate line GL and receive a data signal through the data line DL.
- each pixel P may receive a high potential voltage (eg, ELVDD voltage) and a low potential voltage (eg, ELVSS voltage) as a power source for driving an organic light emitting diode (OLED). .
- each pixel P may include an OLED and a pixel driving circuit (not shown) for driving the OELD.
- the pixel driving circuit disposed in each pixel P may control the on (eg, active state) or off (eg, inactive state) of the OLED based on the gate scan signal and the emission signal. there is.
- a gray level (eg, luminance) corresponding to the data signal may be displayed for one frame period.
- the data controller 520 may drive a plurality of data lines DL.
- the data controller 520 inputs at least one synchronization signal and a data signal (eg, digital image data) from the timing controller 540 or a processor (eg, the processor 120 of FIG. 1 ). can receive
- the data controller 520 may determine a data voltage (eg, analog image data) corresponding to an input data signal using a reference gamma voltage and a designated gamma curve.
- the data controller 520 may supply the data voltage to each pixel P by applying the data voltage to the plurality of data lines DL.
- the data controller 520 inputs a plurality of synchronization signals having the same frequency or different frequencies from the timing controller 540 or the processor 120 (eg, the processor 120 of FIG. 1 ). can receive
- the processor 120 determines the first driving frequency (eg, 120 Hz) of the execution screen of the first application displayed through the first portion (eg, the first region 321 of FIG. 3A);
- the second driving frequency (eg, 60Hz) of the execution screen of the second application displayed through the second part (eg, the second area 322 of FIG. 3A ) may be independently controlled.
- the gate controller 530 may drive a plurality of gate lines GL. According to the disclosed embodiment, the gate controller 530 may receive at least one synchronization signal from the timing controller 540 or a processor (eg, the processor 120 of FIG. 1 ).
- the gate control unit 530 sequentially generates a plurality of gate scan signals based on the synchronization signal, and supplies the generated plurality of gate scan signals to the gate line GL. ) (eg, a gate driver).
- the gate control unit 530 is a light emitting driver 532 that sequentially generates a plurality of light emitting signals based on the synchronization signal and supplies the generated plurality of light emitting signals to the gate line GL.
- a light emitting driver 532 that sequentially generates a plurality of light emitting signals based on the synchronization signal and supplies the generated plurality of light emitting signals to the gate line GL.
- each gate line GL may include a gate signal line SCL to which a gate scan signal is applied and/or an emission signal line EML to which an emission signal is applied.
- the gate controller 530 may receive the same frequency synchronization signal from the timing controller 540 or the processor 120 (eg, the processor 120 of FIG. 1 ).
- the gate control unit 530 applies first lines to some of the gate lines GL corresponding to the first portion (eg, the first region 321 of FIG. 3A ) among the plurality of gate lines GL.
- a gate scan signal and/or a light emitting signal corresponding to a driving frequency (eg, 120 Hz) may be applied.
- some gate lines GL corresponding to the second portion correspond to a first driving frequency (eg, 120 Hz).
- a gate scan signal and/or a light emitting signal may be applied.
- the gate controller 530 may receive a plurality of synchronization signals having different frequencies from the timing controller 540 or the processor 120 (eg, the processor 120 of FIG. 1 ).
- the gate control unit 530 applies first lines to some of the gate lines GL corresponding to the first portion (eg, the first region 321 of FIG. 3A ) among the plurality of gate lines GL.
- a gate scan signal and/or a light emitting signal corresponding to a driving frequency (eg, 120 Hz) may be applied.
- some gate lines GL corresponding to the second portion correspond to the second driving frequency (eg, 60 Hz).
- a gate scan signal and/or a light emitting signal may be applied.
- the timing controller 540 may control driving timings of the gate controller 530 and the data controller 520 .
- the timing controller 540 may obtain a data signal (eg, digital image data) of one frame.
- the timing controller 540 may receive a data signal of one frame from the processor 120 .
- the timing controller 540 stores the data signal of the previous frame so that at least a portion of the display panel 510 displays an image of the previous frame, based on a designated event, the memory 550 (eg : DRAM).
- the timing controller 540 converts the acquired data signal (eg, digital image data) to correspond to the resolution of the display panel 510 and supplies the converted data signal to the data controller 520.
- the acquired data signal eg, digital image data
- FIG. 6 is a diagram illustrating a power supply device of an electronic device according to various embodiments of the present disclosure.
- FIG. 7 is a diagram illustrating an example of a boost converter circuit, a charge pump circuit, and an inverting buck-boost converter circuit of the power supply device shown in FIG. 6 .
- a power supply device 600 (eg, the power supply device 560 of FIG. 5 ) according to various embodiments of the present disclosure includes a boost converter circuit unit 610 and a charge pump.
- a circuit 620 and an inverting buck-boost converter circuit 630 may be included.
- the power supply device 600 may generate power for driving the OLED of each pixel disposed on the display panel 510 .
- the power supply 600 includes a high potential (positive level) voltage (eg, ELVDD voltage) and a low potential (negative level) voltage (eg, DC power) from power input from the battery 189 (eg, DC power).
- ELVSS voltage can be generated.
- a high potential voltage (eg, ELVDD voltage) and a low potential voltage (eg, ELVSS voltage) may be supplied to the display panel 510 .
- the boost converter circuit unit 610 may output the voltage of the switching node VLX at 3 levels as a 3-level boost.
- the boost converter circuit unit 610 outputs a first voltage equal to the output voltage Vo, a second voltage Vo/2 equal to half of the output voltage Vo, and a third voltage of 0V to the switching node VLX. can do.
- a display mode (eg, a normal display mode, a low power display mode) of an electronic device (eg, the electronic device 101 of FIG. 1 , the electronic device 300 of FIG. 3A , and the electronic device 400 of FIG. 4A )
- a high potential voltage (eg, ELVDD voltage) from a voltage input from the battery 189 may be supplied to the display panel 510 .
- a low potential voltage of -Vo voltage eg, about -4.6V
- -Vo/2 voltage eg, about -2.3V
- ELVSS voltage ELVSS voltage
- the charge pump circuit unit 620 may be connected to an output node sn of the first inductor L1 of the boost converter circuit unit 610 and an output node of the inverting buck-boost converter circuit unit 630.
- An output node sn of the first inductor L1 of the boost converter circuit unit 610 may be a switching node VLX.
- the charge pump circuit unit 620 may invert the polarity of the output current (eg, about 10 mA) of the switching node VLX (eg, reverse a positive voltage into a negative voltage).
- a processor in a normal display mode of an electronic device (eg, the electronic device 101 of FIG. 1 , the electronic device 300 of FIG. 3A , and the electronic device 400 of FIG. 4A ), a processor (eg, the electronic device 101 of FIG. 1 )
- the processor 120 may control a DDI (eg, the DDI 230 of FIG. 2 ) so that a screen in a normal display mode is displayed on the display panel 510 .
- a processor eg, the processor 120 of FIG. 1
- the boost converter circuit 610 to supply ELVDD (eg, 4.6V) power to the display panel 510 .
- the processor eg, processor 120 of FIG.
- ELVSS eg, -4.6V
- various types of converters capable of generating a negative level voltage eg, ELVSS voltage
- a low-power display (eg, (eg, always on AOD) of an electronic device (eg, electronic device 101 of FIG. 1 , electronic device 300 of FIG. 3A , electronic device 400 of FIG. 4A ) display) mode
- a processor eg, the processor 120 of FIG. 1
- controls a DDI eg, the DDI 230 of FIG. 2
- the processor eg, the processor 120 of FIG.
- the boost converter circuit 610 operates the boost converter circuit 610 to supply ELVDD (eg, 4.6V) power to the display panel 510
- the processor eg, the processor 120 of FIG. 1
- the charge pump circuit 620 operates the charge pump circuit 620 to supply -Vo/2 (eg, -2.3V) power to the display panel. 510, and the inverting buck-boost converter circuit 630 may be stopped.
- the boost converter circuit unit 610 includes a first inductor L1, a first switch Q1, a second switch Q2, a third switch Q3, a fourth switch Q4, and a second switch Q4.
- 5 may include a switch Q5 (eg, reverse blocking MOSFET), a first capacitor C1 (eg, a flying capacitor), and a second capacitor C2 (eg, an output capacitor).
- the charge pump circuit unit 620 includes a sixth switch Q6, a seventh switch Q7, a third capacitor C3, a fourth capacitor C4 (eg, a rectifying capacitor), and 8 switches (Q8) (e.g. rectifier diodes).
- the inverting buck-boost converter circuit unit 630 includes a ninth switch Q9, a tenth switch Q10, a second inductor L2, and a fifth capacitor C5 (eg output capacitor) may be included.
- the first terminal L1a of the first inductor L1 of the boost converter circuit unit 610 may be electrically connected to the battery 189 (VBATT).
- the second terminal L1b of the first inductor L1 may be electrically connected to the switching node VLX.
- the first switch Q1, the second switch Q2, the third switch Q3, and the fourth switch Q4 may be connected in series.
- the first terminal Q1a (eg, gate) of the first switch Q1, the first terminal Q2a (eg, gate) of the second switch Q2, and the first terminal Q3a of the third switch Q3 ) (eg, gate), the first terminal Q4a (eg, gate) of the fourth switch Q4, and the first terminal Q5a (eg, gate) of the fifth switch Q5 include a processor (eg, gate).
- a switching control voltage according to the control of the processor 120 of FIG. 1 may be supplied.
- MOSFETs eg, n-type MOSFETs
- MOSFETs are applied to the first switch Q1, the second switch Q2, the third switch Q3, the fourth switch Q4, and the fifth switch Q5.
- the third terminal Q1c of the first switch Q1 may be electrically connected to the third terminal Q5c of the fifth switch Q5 and the first terminal C2a of the second capacitor C2.
- the second terminal Q2b (eg, source) of the second switch Q2 and the third terminal Q3c (eg, drain) of the third switch Q3 may be electrically connected to the switching node VLX.
- the first terminal C1a of the first capacitor C1 is connected to the second terminal Q1b (eg, source) of the first switch Q1 and the third terminal Q2c (eg, drain) of the second switch Q2. ) can be electrically connected.
- the second terminal C1b of the first capacitor C1 is connected to the second terminal Q3b (eg, source) of the third switch Q3 and the third terminal Q4c (eg, drain) of the fourth switch Q4. ) can be electrically connected.
- the second terminal Q4b (eg, source) of the fourth switch Q4 may be electrically connected to the ground.
- the third terminal Q5c of the fifth switch Q5 may be electrically connected to the third terminal Q1c of the first switch Q1 and the first terminal C2a of the second capacitor C2.
- the second terminal Q5b of the fifth switch Q5 may be connected to the first output terminal Vo1 (eg, a high potential voltage (ELVDD voltage) output terminal).
- the boost circuit when the boost circuit does not operate, power from the battery 189 passes through the first switch Q1 and the second switch Q2 to the first output terminal Vo1 (eg, the ELVDD output terminal). leakage can be prevented.
- the first terminal C2a of the second capacitor C2 may be electrically connected to the third terminal Q3c of the first switch Q1 and the third terminal Q5c of the fifth switch Q5.
- a second terminal C2b of the second capacitor C2 may be electrically connected to ground.
- the first terminal C3a of the third capacitor C3 of the charge pump circuit unit 620 may be electrically connected to the switching node VLX of the boost converter circuit unit 610 .
- the second terminal C3b of the third capacitor C3 is connected to the second terminal Q6b (eg, source) of the sixth switch Q6 and the third terminal Q7c (eg, drain) of the seventh switch Q7. ) can be electrically connected to A third terminal Q6c (eg, drain) of the sixth switch Q6 may be electrically connected to the ground.
- the first terminal C4a of the fourth capacitor C4 is connected to the second terminal Q7b (eg, source) of the seventh switch Q7 and the third terminal Q8c (eg, drain) of the eighth switch Q8. ) can be electrically connected to The second terminal C4b of the fourth capacitor C4 may be electrically connected to ground.
- the eighth switch Q8 may operate as a diode.
- the second terminal Q8b of the eighth switch Q8 may be electrically connected to the second output terminal Vo2 (eg, a low potential voltage (ELVSS voltage) output terminal).
- the third terminal Q8c of the eighth switch Q8 may be electrically connected to the second terminal Q7b of the seventh switch Q7 and the first terminal C4a of the fourth capacitor C4.
- the first terminal Q9a (eg, gate) of the ninth switch Q9 of the inverting buck-boost converter circuit unit 630 and the first terminal Q10a (eg, gate) of the tenth switch Q10 (eg : gate) may be supplied with a switching control voltage under the control of a processor (eg, the processor of FIG. 1 ).
- a third terminal Q9c (eg, drain) of the ninth switch Q9 may be electrically connected to the battery 189 .
- the second terminal Q9b of the ninth switch Q9 is electrically connected to the first terminal L2a of the second inductor L2 and the third terminal Q10c (eg, drain) of the tenth switch Q10.
- the second terminal L2b of the second inductor L2 may be electrically connected to ground.
- the second terminal Q10b of the tenth switch Q10 may be electrically connected to the first terminal C5a of the fifth capacitor C5 and the second output terminal Vo2.
- the third terminal Q10c of the tenth switch Q10 may be electrically connected to the second terminal Q9b of the ninth switch Q9 and the first terminal L2a of the second inductor L2.
- the second terminal C5b of the fifth capacitor C5 may be electrically connected to ground.
- the operation of the inverting buck-boost converter circuit 630 is stopped and the inverting buck-boost An output of the converter circuit unit 630 may be cut off.
- the charge pump circuit unit 620 may supply -Vo/2 voltage (eg, about -2.3V) to the display panel 510 .
- the high potential voltage (eg, the ELVDD voltage) is controlled to about 4.6V
- the sixth switch Q6 and the seventh switch Q7 of the charge pump circuit unit 620 are used as synchronous rectifiers. can make it work.
- the sixth switch Q6 and the seventh switch Q7 operate as synchronous rectifiers to convert the voltage obtained from the charge pump circuit 620 into a low potential voltage (eg, ELVSS voltage) of about -2.3V.
- a low potential voltage (eg, ELVSS voltage) of about -2.3V may be supplied to the display panel 510 .
- a pulse voltage having a peak to peak ripple of 1/2 of the output voltage may be formed at the switching node VLX of the boost converter circuit unit 610 . DC power of 1/2 of the output voltage may be supplied through the charge pump circuit 620 using the pulse voltage of 1/2 of the output voltage.
- the inverting buck-boost converter circuit 630 stops operating. And, the boost converter circuit unit 610 and the charge pump circuit unit 620 may be operated. Through this, ELVDD of about 4.6V and ELVSS of about -2.3V are output to improve the problem of reducing battery use time due to switching loss of the inverting buck-boost converter circuit part.
- AOD always on display
- FIG. 8 is a diagram illustrating an operating waveform 800 of a power supply device according to various embodiments of the present disclosure.
- the voltage of the switching node VLX is set to three levels by sv1 to sv4 (eg, a first voltage equal to the output voltage Vo at the switching node VLX, and a second voltage Vo equal to half of the output voltage Vo) /2), the third voltage of 0V).
- a first voltage equal to the output voltage Vo at the switching node VLX of the boost converter circuit unit 610, a second voltage Vo / 2 equal to half of the output voltage Vo, and a second voltage of 0V 3 voltages can be output.
- the second voltage Vo/2 equal to half (1/2) of the output voltage Vo may be maintained by the first capacitor c1 of the boost converter circuit unit 610 .
- the first switch Q1 and the second switch Q2 may operate as diodes having a voltage drop close to 0V.
- the third switch Q3 and the fourth switch Q4 may operate as switches (eg, rectifier MOSFETs) for outputting a 3-level voltage.
- a short circuit may occur when the first switch Q1 and the fourth switch Q4 are turned on at the same time. Therefore, the first drive signal sv1 (switching control voltage) input to the first terminal Q1a (eg gate) of the first switch Q1 and the first terminal Q4a (eg gate) of the fourth switch Q4 : Gate) may be inverted.
- a short circuit may occur when the second switch Q2 and the third switch Q3 are turned on at the same time. Therefore, the second drive signal sv2 (second switching control voltage) input to the first terminal Q2a (eg, gate) of the second switch Q2 and the first terminal Q3a of the third switch Q3
- the third drive signal (sv3, third switching control voltage) input to (eg, gate) may be inverted.
- the second drive signal sv2 (second switching control voltage) input to the first terminal Q2a (eg, gate) of the second switch Q2 is the first terminal of the fourth switch Q4. It may be an inverting signal of the fourth drive signal sv4 (fourth switching control voltage) input to Q4a (eg, gate).
- the first drive signal sv1 is input to the first terminal Q1a of the first switch Q1, the first switch Q1 is turned on, and the third switch Q3 is turned on.
- the third switch Q3 may be turned on.
- an inductor voltage VL of -Vo/2 is formed in the first inductor L1, and the first switch Q1 and the third During the time when the switch Q3 is turned on together, the inductor current IL may increase.
- the third switch Q3 is turned off, and the second drive signal sv2 is applied to the first terminal Q2a of the second switch Q2. is input to turn on the second switch Q2.
- the inductor -Vo is connected to the first inductor L1.
- a voltage VL is formed, and an inductor current IL may decrease.
- the fourth drive signal sv4 is input to the first terminal Q4a of the fourth switch Q4, and the fourth switch Q4 is turned on. It can be.
- an inductor voltage VL of -Vo/2 is formed in the first inductor L1, and the inductor current IL can be increased. there is.
- the inductor current IL may increase.
- the fourth switch Q4 may be turned off and the first switch Q1 may be turned on.
- the inductor -Vo is connected to the first inductor L1.
- a voltage VL is formed, and an inductor current IL may decrease.
- a difference between a maximum value and a minimum value of the voltage VL formed in the first inductor L1 may be a Vo/2 voltage.
- the switching node VLX of the boost converter circuit unit 610 has a pulse voltage Vo/2 whose peak to peak ripple is half (1/2) of the output voltage Vo. this can be created.
- the charge pump circuit unit 620 may receive a pulse voltage Vo/2 that is half (1/2) of the output voltage Vo.
- a square wave voltage alternating between 0V and a voltage that is half (1/2) of the output voltage Vo may be generated at the charge node VX of the charge pump circuit unit 620 .
- the pulse voltage (Vo/2), which is half (1/2) of the output voltage (Vo) is rectified by the fourth capacitor (C4) and the eighth switch (Q8) (eg, ideal diode) and reversed to negative (-) polarity. can generate a charged charge voltage (-Vo/2 voltage) (e.g. -2.3V).
- the processor eg, the processor 120 of FIG. 1
- the drive signal may be input to the first terminal Q9a (eg, gate), and the drive signal may be input to the first terminal Q10a (eg, gate) of the tenth switch Q10.
- a low potential voltage eg, ELVSS voltage
- -2V to -4.4V is applied to the second output node ( Vo2) can be supplied.
- ELVDD of about 4.6V and ELVSS of -2V to -4.4V may be supplied to the display panel 510 . Since a low potential voltage (eg, ELVSS voltage) of -2V to -4.4V is supplied to the second output node Vo2, the eighth switch Q8 of the charge pump circuit unit 620 is reverse blocked and charged.
- the charge voltage (-Vo/2 voltage) (eg, -2.3V) generated by the pump circuit unit 620 may not be supplied to the display panel 510 .
- the processor inverting buck-boost converter circuitry 630
- the processor eg, the processor 120 of FIG. 1
- the processor inverting buck-boost converter circuitry 630
- the processor eg, the processor 120 of FIG. 1
- the processor of the inverting buck-boost converter circuit 630 9 Inverting buck-boost converter by preventing the drive signal from being input to the first terminal Q9a (eg gate) of the switch Q9 and the first terminal Q10a (eg gate) of the tenth switch Q10
- the operation of the circuit unit 630 may be stopped.
- the processor switches the sixth switch of the charge pump circuit unit 620
- a drive signal may be input to the first terminal Q6a (eg, gate) of Q6 and the first terminal Q7a (eg, gate) of the seventh switch Q7.
- Q6 and the seventh switch (Q7) can be operated as a synchronous rectifier.
- the charge voltage at the second output node (Vo2) (-Vo/2 voltage) (eg, -2.3 V) can be supplied.
- the power conversion of the charge pump circuit 620 does not include an inductor and is driven by a circuit optimized for an output of about 10 mA, thereby inverting buck - Power in a low-power display (eg, always on display (AOD) mode) can be supplied to the display panel 510 with high efficiency compared to the boost converter circuit unit 630 .
- AOD always on display
- the operation of the inverting buck-boost converter circuit 630 is stopped and the inverting buck-boost An output of the converter circuit unit 630 may be cut off.
- the charge pump circuit unit 620 may supply -Vo/2 voltage (eg, about -2.3V) to the display panel 510.
- the high potential voltage ( Example: ELVDD voltage) is controlled to about 4.6V, and the voltage obtained from the charge pump circuit can be converted to a low potential voltage (eg ELVSS voltage) of about -2.3V Low potential voltage of about -2.3V (eg ELVSS voltage) : ELVSS voltage) may be supplied to the display panel A pulse voltage having a peak to peak ripple of 1/2 of the output voltage is always formed at the switching node VLX of the inverting boost converter circuit unit 610.
- a stable power supply of 1/2 of the output voltage may be continuously secured using a pulse voltage of 1/2 of the output voltage
- An electronic device and an operating method thereof may include an OLED display When operating in a minimum power consumption mode (eg, always on display (AOD)), it is possible to increase the battery life of the electronic device by increasing the efficiency of the power supply.
- AOD always on display
- Electronic devices are display driver ICs A display (eg, the display module 160 of FIGS. 1 and 2 ) including an integrated circuit (eg, the display driver IC 230 and 230 of FIG. 2 ), and driving power to the display module 160 A power supply unit (eg, the power supply unit 600 of FIGS. 6 and 7 ), the display driver IC 230 , and a processor operatively connected to the power supply unit 600 (eg, the processor of FIG.
- the memories 130 and 233 may include When executed, the processor 120 may store instructions for controlling the power supply 600 to supply different driving power according to the display mode of the display module 160 .
- the power supply 600 includes a boost converter circuit unit (eg, the boost converter circuit unit of FIGS. 6 and 7 ) supplying a first output voltage of a first polarity to the display module 160 . 610)), a charge pump circuit unit (eg, the charge pump circuit unit 620 of FIGS. 6 and 7) outputting a charge voltage of a second polarity in which the magnitude and polarity of 1/2 of the first output voltage are reversed, and An inverting buck-boost converter circuit unit (eg, the inverting buck-boost converter circuit unit 630 of FIGS. 6 and 7 ) that operates or stops operation according to the display mode of the display module 160 may be included. .
- a boost converter circuit unit eg, the boost converter circuit unit of FIGS. 6 and 7
- a charge pump circuit unit eg, the charge pump circuit unit 620 of FIGS. 6 and 7
- An inverting buck-boost converter circuit unit eg, the inverting buck-boost converter circuit
- the processor 120 stops the operation of the inverting buck-boost converter circuit 630 when the display module 160 operates in the low power display mode, and the second polarity 2 voltage may be supplied to the display module 160 .
- the charge pump circuit unit 620 supplies the second voltage of the second polarity to the display module 160 by inverting the polarity of the voltage of the switching node of the boost converter circuit unit 610.
- the processor 120 may supply the charge voltage of the charge pump circuit 620 to the display module 160 when the display module 160 operates in a low power display mode. .
- the first output voltage of 4.6V may be supplied to the display module 160 .
- the charge voltage of -2.3V may be supplied to the display module 160 .
- the processor 120 operates the inverting buck-boost converter circuit unit 630 when the display module 160 operates in a normal display mode to generate a second output voltage of the second polarity. This may be supplied to the display module 160 .
- the first output voltage of 4.6V and the charge voltage of -2V to -4.4V may be supplied to the display module 160. .
- the power supply device 600 may supply the voltage of the second polarity having a first value to the display module 160 when the display module 160 operates in a normal display mode. there is.
- the voltage of the second polarity having an absolute value smaller than the first value may be supplied to the display module 160 .
- the boost converter circuit unit 610 may output a first output voltage of the first polarity, a voltage having a value of 1/2 of the first output voltage, and a voltage of 0V.
- An electronic device including a display according to various embodiments of the present disclosure (eg, the electronic device 101 of FIG. 1 , the electronic device 300 of FIGS. 3A and 3B , and the electronic device 400 of FIGS. 4A and 4B )
- the operation method of can determine whether the display (eg, the display module 160 of FIGS. 1 and 2 ) operates in a normal display mode or a low power display mode. According to the normal display mode and the low power display mode, driving of a power supply device (eg, the power supply device 600 of FIGS. 6 and 7 ) that supplies driving power to the display module 160 is controlled to drive different driving modes. power can be supplied.
- a power supply device eg, the power supply device 600 of FIGS. 6 and 7
- the power supply device 600 includes a boost converter circuit unit (eg, the boost converter circuit unit of FIGS. 6 and 7 ) supplying a first output voltage of a first polarity to the display module 160 . 610)), a charge pump circuit unit (eg, the charge pump circuit unit 620 of FIGS. 6 and 7) outputting a charge voltage of a second polarity in which the magnitude and polarity of 1/2 of the first output voltage are reversed, and An inverting buck-boost converter circuit unit (eg, the inverting buck-boost converter circuit unit 630 of FIGS. 6 and 7 ) that operates or stops operation according to the display mode of the display module 160 may be included. . When the display module 160 operates in the low power display mode, the operation of the inverting buck-boost converter circuit 630 may be stopped and the second voltage of the second polarity may be supplied to the display module 160 .
- a boost converter circuit unit eg, the boost converter circuit unit of FIGS. 6 and 7
- the second voltage of the second polarity may be supplied to the display module 160 by inverting the polarity of the voltage of the switching node of the boost converter circuit unit 610 .
- the charge voltage of the charge pump circuit unit 620 may be supplied to the display module 160 .
- the first output voltage of 4.6V may be supplied to the display module 160 .
- the charge voltage of -2.3V may be supplied to the display module 160 .
- the inverting buck-boost converter circuit 630 when the display module 160 operates in the normal display mode, the inverting buck-boost converter circuit 630 is operated to generate the second output voltage of the second polarity to the display module 160. can supply to
- the first output voltage of 4.6V and the charge voltage of -2V to -4.4V may be supplied to the display module 160. .
- the voltage of the second polarity having the first value may be supplied to the display module 160 .
- the voltage of the second polarity having an absolute value smaller than the first value may be supplied to the display module 160 .
- the operation of the boost converter circuit unit 610 is controlled to output a first output voltage of the first polarity, a voltage having a value of 1/2 of the first output voltage, and a voltage of 0V.
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Abstract
Description
Claims (15)
- 전자 장치에 있어서,디스플레이 드라이버 IC(integrated circuit)를 포함하는 디스플레이;상기 디스플레이에 구동 전원을 공급하는 전원 공급 장치;상기 디스플레이 드라이버 IC 및 상기 전원 공급 장치와 작동적으로 연결된 적어도 하나의 프로세서; 및상기 적어도 하나의 프로세서와 작동적으로 연결된 메모리;를 포함하고,상기 메모리는, 실행 시에 상기 적어도 하나의 프로세서가,상기 디스플레이의 디스플레이 모드에 따라 상이한 구동 전원을 공급하도록 상기 전원 공급 장치를 제어하는 인스트럭션들을 저장하는,전자 장치.
- 제1 항에 있어서,상기 전원 공급 장치는,제1 극성의 제1 출력 전압을 상기 디스플레이에 공급하는 부스트 컨버터 회로부;상기 제1 출력 전압의 1/2의 크기 및 극성이 반전된 제2 극성의 차지 전압을 출력하는 차지펌프 회로부; 및상기 디스플레이의 디스플레이 모드에 따라 동작하거나 또는 동작이 중지되는 인버팅 벅-부스트 컨버터 회로부;를 포함하고,상기 적어도 하나의 프로세서는,상기 디스플레이가 저전력 디스플레이 모드로 동작 시 상기 인버팅 벅-부스트 컨버터 회로부의 동작을 중지시키고, 상기 제2 극성의 제2 출력 전압을 상기 디스플레이에 공급하는,전자 장치.
- 제2 항에 있어서,상기 차지펌프 회로부는,상기 부스트 컨버터 회로부의 스위칭 노드의 전압의 극성을 반전시켜 상기 반전된 제2 극성의 제2 출력 전압을 상기 디스플레이에 공급하는,전자 장치.
- 제3 항에 있어서,상기 적어도 하나의 프로세서는,상기 디스플레이가 저전력 디스플레이 모드로 동작 시 상기 차지펌프 회로부의 차지 전압이 상기 디스플레이로 공급되도록 하는,전자 장치.
- 제4 항에 있어서,상기 디스플레이가 저전력 디스플레이 모드로 동작 시 4.6V의 상기 제1 출력 전압을 상기 디스플레이에 공급하는,전자 장치.
- 제4 항에 있어서,상기 디스플레이가 저전력 디스플레이 모드로 동작 시 -2.3V의 상기 차지 전압을 상기 디스플레이에 공급하는,전자 장치.
- 제4 항에 있어서,상기 적어도 하나의 프로세서는,상기 디스플레이가 일반 디스플레이 모드로 동작 시 상기 인버팅 벅-부스트 컨버터 회로부를 동작시켜 상기 반전된 제2 극성의 제2 출력 전압이 상기 디스플레이에 공급되도록 하는,전자 장치.
- 제7 항에 있어서,상기 디스플레이가 일반 디스플레이 모드로 동작 시 4.6V의 상기 제1 출력 전압 및 -2V~-4.4V의 상기 차지 전압을 상기 디스플레이에 공급하는,전자 장치.
- 제2 항에 있어서,상기 전원 공급 장치는,상기 디스플레이가 일반 디스플레이 모드로 동작 시 제1 값을 갖는 상기 반전된 제2 극성의 제2 출력 전압을 상기 디스플레이에 공급하고,상기 디스플레이가 저전력 디스플레이 모드로 동작 시 상기 제 1값보다 작은 절대 값을 가지는 상기 반전된 제2 극성의 제2 출력 전압을 상기 디스플레이에 공급하는,전자 장치.
- 제2 항에 있어서,상기 부스트 컨버터 회로부는,상기 제1 극성의 제1 출력 전압, 상기 제1 출력 전압의 1/2 값을 가지는 전압, 및 0V의 전압을 출력하는,전자 장치.
- 디스플레이를 포함하는 전자 장치의 동작 방법에 있어서,상기 디스플레이가 일반 디스플레이 모드로 동작하는지, 저전력 디스플레이 모드로 동작하는지 판단하고,상기 일반 디스플레이 모드와 상기 저전력 디스플레이 모드에 따라, 상기 디스플레이에 구동 전원을 공급하는 전원 공급 장치의 구동을 제어하여 상이한 구동 전원을 공급하는,전자 장치의 동작 방법.
- 제11 항에 있어서,상기 전원 공급 장치는,제1 극성의 제1 출력 전압을 상기 디스플레이에 공급하는 부스트 컨버터 회로부;상기 제1 출력 전압의 1/2의 크기 및 극성이 반전된 제2 극성의 차지 전압을 출력하는 차지펌프 회로부; 및상기 디스플레이의 디스플레이 모드에 따라 동작하거나 또는 동작이 중지되는 인버팅 벅-부스트 컨버터 회로부;를 포함하고,상기 디스플레이가 저전력 디스플레이 모드로 동작 시, 상기 인버팅 벅-부스트 컨버터 회로부의 동작을 중지시키고, 상기 반전된 제2 극성의 제2 출력 전압을 상기 디스플레이에 공급하는,전자 장치의 동작 방법.
- 제12 항에 있어서,상기 부스트 컨버터 회로부의 스위칭 노드의 전압의 극성을 반전시켜 상기 반전된 제2 극성의 제2 출력 전압을 상기 디스플레이에 공급하는,전자 장치의 동작 방법.
- 제13 항에 있어서,상기 디스플레이가 저전력 디스플레이 모드로 동작 시 상기 차지펌프 회로부의 차지 전압이 상기 디스플레이로 공급되도록 하는,전자 장치의 동작 방법.
- 제14 항에 있어서,상기 디스플레이가 저전력 디스플레이 모드로 동작 시 4.6V의 상기 제1 출력 전압을 상기 디스플레이에 공급하는,전자 장치의 동작 방법.
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| EP22876885.9A EP4390619B1 (en) | 2021-10-01 | 2022-09-29 | Electronic device and operation method thereof |
| US17/989,144 US12101019B2 (en) | 2021-10-01 | 2022-11-17 | Electronic device and method of operating the same |
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| KR10-2021-0130692 | 2021-10-01 | ||
| KR1020210130692A KR20230047626A (ko) | 2021-10-01 | 2021-10-01 | 전자 장치 및 이의 동작 방법 |
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| US17/989,144 Continuation US12101019B2 (en) | 2021-10-01 | 2022-11-17 | Electronic device and method of operating the same |
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|---|---|---|---|---|
| KR20160021956A (ko) * | 2014-08-18 | 2016-02-29 | 삼성디스플레이 주식회사 | Dc-dc 컨버터 및 이를 포함하는 유기 발광 표시 장치 |
| JP2019012668A (ja) * | 2017-06-30 | 2019-01-24 | パナソニックIpマネジメント株式会社 | 電源装置、点灯装置、照明装置 |
| KR20190066104A (ko) * | 2017-12-04 | 2019-06-13 | 삼성디스플레이 주식회사 | Dc-dc 컨버터 및 이를 포함하는 표시 장치 |
| KR20190090899A (ko) * | 2018-01-25 | 2019-08-05 | 삼성디스플레이 주식회사 | 저전력 모드를 지원하는 표시 장치 및 표시 장치의 구동 방법 |
| KR20210065763A (ko) * | 2019-11-27 | 2021-06-04 | 주식회사 지니틱스 | 듀얼 페이즈 모드를 갖는 전력관리 집적회로장치 |
-
2021
- 2021-10-01 KR KR1020210130692A patent/KR20230047626A/ko active Pending
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2022
- 2022-09-29 WO PCT/KR2022/014634 patent/WO2023055113A1/ko not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160021956A (ko) * | 2014-08-18 | 2016-02-29 | 삼성디스플레이 주식회사 | Dc-dc 컨버터 및 이를 포함하는 유기 발광 표시 장치 |
| JP2019012668A (ja) * | 2017-06-30 | 2019-01-24 | パナソニックIpマネジメント株式会社 | 電源装置、点灯装置、照明装置 |
| KR20190066104A (ko) * | 2017-12-04 | 2019-06-13 | 삼성디스플레이 주식회사 | Dc-dc 컨버터 및 이를 포함하는 표시 장치 |
| KR20190090899A (ko) * | 2018-01-25 | 2019-08-05 | 삼성디스플레이 주식회사 | 저전력 모드를 지원하는 표시 장치 및 표시 장치의 구동 방법 |
| KR20210065763A (ko) * | 2019-11-27 | 2021-06-04 | 주식회사 지니틱스 | 듀얼 페이즈 모드를 갖는 전력관리 집적회로장치 |
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