WO2015165013A1 - Procédé d'affichage de données sur un écran, et appareil de commande d'affichage - Google Patents

Procédé d'affichage de données sur un écran, et appareil de commande d'affichage Download PDF

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Publication number
WO2015165013A1
WO2015165013A1 PCT/CN2014/076394 CN2014076394W WO2015165013A1 WO 2015165013 A1 WO2015165013 A1 WO 2015165013A1 CN 2014076394 W CN2014076394 W CN 2014076394W WO 2015165013 A1 WO2015165013 A1 WO 2015165013A1
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WO
WIPO (PCT)
Prior art keywords
data
resolution
screen
displayed
power consumption
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2014/076394
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English (en)
Chinese (zh)
Inventor
彭荣安
余承东
苗德有
解生
秦牧云
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Device Co Ltd
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Huawei Device Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Device Co Ltd filed Critical Huawei Device Co Ltd
Priority to CN201480004980.0A priority Critical patent/CN104981766B/zh
Priority to CN201910786633.2A priority patent/CN110688081B/zh
Priority to PCT/CN2014/076394 priority patent/WO2015165013A1/fr
Publication of WO2015165013A1 publication Critical patent/WO2015165013A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • G06F1/32—Means for saving power
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/59—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial sub-sampling or interpolation, e.g. alteration of picture size or resolution

Definitions

  • the present invention relates to the field of terminal electronic device manufacturing, and in particular, to a method for displaying data on a screen and a display control device. Background technique
  • the existing method for reducing the power consumption of the device is mainly for the OLED (Organic Light-Emitting Diode) screen, and three power saving modes are set: the "blur” and “animation” functions of the liquid crystal display are turned off; The “blur” and “animation” functions of the display, and reduce the screen resolution, reduce the display content and place it in the corner of the screen; turn off the “blur” and “animation” functions of the LCD screen, and reduce the screen resolution, command screen Only black and red colors are displayed.
  • the above method for reducing the power consumption of the device does not mention how to implement resolution switching, which reduces the power consumption of the device and limits the system performance, resulting in a system stall and a decrease in display effect. Summary of the invention
  • Embodiments of the present invention provide a method of displaying data on a screen and a display control device that reduces power consumption of the entire device without substantially affecting system performance.
  • a method for displaying data on a screen where a resolution of the screen is a first resolution, and the method includes: Generating first graphics data according to data to be displayed, the resolution of the first graphics data being a second resolution;
  • the method before the generating the first graphics data according to the data to be displayed, the method further includes:
  • the first graphic data generated according to the data to be displayed is specifically:
  • the first graphic data is generated based on the data to be displayed.
  • the method further includes:
  • the terminal When the terminal is in the non-low power consumption mode, generating second graphic data according to the data to be displayed, and outputting the second graphic data to the screen for display; the resolution of the second graphic data is The first resolution is described.
  • the method before the generating the first graphics data according to the data to be displayed, the method further includes:
  • the generating the first graphic data according to the data to be displayed is specifically:
  • the first graphic data is generated based on the data to be displayed.
  • the method further includes:
  • the power consumption of the one or more devices that process the image display is less than the preset value, generating the second graphic data according to the data to be displayed, and inputting the second graphic data And outputting to the screen for display; the resolution of the second graphic data is the first resolution.
  • a control device for screen resolution including: a communication interface, a processor, an amplification processing module, a memory, and a bus, wherein the communication interface, the processor, and the memory pass each other through the bus Connecting, the memory is configured to store data processed by the processor and the amplification processing module;
  • the processor is configured to generate first graphics data according to data to be displayed, where a resolution of the first graphics data is a second resolution;
  • the enlargement processing module is configured to convert a resolution of the first graphic data generated by the processor into the first resolution, and output to the screen through the communication interface for display, where The first resolution is greater than the second resolution.
  • the method further includes:
  • the processor is further configured to determine whether the terminal where the screen is located is in a low power consumption mode; when the terminal is in the low power consumption mode, generate first graphics data according to data to be displayed.
  • the processor is further configured to generate a second according to data to be displayed when the terminal is in a non-low power mode Graphic data, and outputting the second graphic data to the screen through the communication interface for display; the resolution of the second graphic data is the first resolution.
  • the processor is further configured to determine whether power consumption of one or more devices that process image display is greater than or equal to a preset value; when processing one or When the power consumption of the plurality of devices is greater than or equal to the preset value, the first graphic data is generated according to the data to be displayed.
  • the processor is further configured to: when the power consumption of the one or more devices that process the image display is less than the preset value Generating the second graphic data according to the data to be displayed, and The second graphic data is output to the screen through a communication interface for display; and the resolution of the second graphic data is the first resolution.
  • the amplifying processing module is the processor.
  • the processor includes: a central processing unit CPU, a graphics processing unit GPU, and other specific integrated circuit ASICs One or more combinations.
  • the method for displaying data on a screen and the display control device provided by the embodiment of the present invention generate first graphic data of a second resolution according to data to be displayed; when displaying the first graphic data through the screen, the first graphic data is Converting the resolution to the first resolution, wherein the first resolution is greater than the second resolution, and processing is performed at the second resolution when the first graphics data is generated by the data to be displayed, thereby reducing the processing of the operating system kernel data Complexity, reducing power consumption of the entire machine without affecting system performance.
  • FIG. 1 is a schematic flowchart of a method for displaying data on a screen according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart diagram of a method for displaying data on a screen according to another embodiment of the present invention
  • FIG. 3 is a schematic flowchart diagram of a method for displaying data on a screen according to still another embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a display control apparatus according to another embodiment of the present invention
  • FIG. 5 is a schematic flowchart diagram of a method for displaying data on a screen according to still another embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of a display control apparatus according to another embodiment of the present invention
  • FIG. 5 is a schematic flowchart diagram of a method for displaying data on a screen according to still another embodiment of the present invention
  • FIG. 6 is a schematic diagram of a method for displaying data on a screen according to another embodiment of the present invention.
  • Embodiments of the present invention are applied to control of screen display data of a display device, and the display device supports at least processing of data of two or more resolutions in an operating system kernel (kernel), wherein the operating system may be 10 S Operating system (iPhone Operating System, Apple operating system), Android (Android), Windows Phone (Microsoft Mobile Operating System), etc.
  • an embodiment of the present invention provides a method for displaying data on a screen.
  • the resolution of the screen is the first resolution, including the following steps:
  • the display control device generates first graphic data according to the data to be displayed, and the resolution of the first graphic data is a second resolution.
  • the IOS operating system kernel can directly control the upper layer application software to output or input data in hardware, for example, the IOS operating system kernel processes the application data and directly displays on the screen, when using the Android operating system. Since the Android operating system kernel controls the upper layer application software through the application framework layer, after the first graphic data is generated according to the data to be displayed in step 101 of the present invention, the application framework layer of the Android operating system needs to be One resolution is switched to the second resolution.
  • the operating system kernel is attached to the CPU (Central Processing Unit) or CPU combined with the GPU ( Graphic Processing Unit, The graphics processor is implemented.
  • the display control device generates the first graphic data according to the data to be displayed, which can be understood as the data processed by the CPU (the central processing unit) (for example, the document of the office software) and the application.
  • the content corresponding to the interface is processed as data to be displayed, and the CPU alone or the CPU cooperates with the GPU to convert the data to be displayed into graphic data suitable for screen display.
  • the display control device converts the resolution of the first graphic data into the first resolution, and outputs the image to the screen for display, wherein the first resolution is greater than the second resolution.
  • the specific method of converting the resolution of the first graphic data into the first resolution may adopt a pixel aspect ratio image enlargement method, an image sequence adjustment method or a pixel point interpolation algorithm, and the pixel point interpolation algorithm is taken as an example:
  • the ratio is 1080P
  • the second resolution is 720P. Since the first resolution is greater than the second resolution, the display control device performs a preset proportional linear amplification process on the positional relationship of the pixels of the 720P image to make the pixel in the 720P image.
  • the content is filled in the corresponding pixel position in the 1080P image. Since the number of pixels in the 720P image is less than the number of pixels in the 1080P image, the 1080P image contains pixels of unfilled content, and the function is constructed by interpolation algorithm. The content of the unfilled pixel points in the 1080P image is calculated.
  • the interpolation algorithm is not limited to the Lagrangian interpolation algorithm, the Newton interpolation algorithm, and the Halmit interpolation algorithm.
  • a method for displaying data on a screen having a resolution of a first resolution generating first graphics data of a second resolution according to data to be displayed; converting resolution of the first graphics data into After the resolution is output to the screen for display, wherein the first resolution is greater than the second resolution, since the data to be displayed generates the first graphics data and is processed at the second resolution, the processing of the operating system kernel data can be reduced.
  • the complexity reduces the power consumption of the whole system without affecting the performance of the system.
  • the bandwidth utilization of the core components can be reduced due to the reduced resolution of the kernel processing data.
  • an embodiment of the present invention provides a method for displaying data on a screen.
  • the resolution of the screen is a first resolution, and includes the following steps:
  • the display control device determines whether the terminal where the screen is located is in a low power mode. Style.
  • the display control device When the terminal is in the low power consumption mode, the display control device generates first graphic data according to the data to be displayed.
  • the resolution of the first graphics data is a second resolution; the low power mode may be a certain mode provided by the terminal, such as a power saving mode, a flight mode, etc., and the specific method of step 202 refers to the implementation corresponding to FIG. The description of the examples will not be described again.
  • the display control device converts the resolution of the first graphic data into the first resolution, and outputs the image to the screen for display, wherein the first resolution is greater than the second resolution.
  • the specific method of step 203 will not be described again with reference to the description of the corresponding embodiment of FIG. 1.
  • the display control device When the terminal is in the non-low power consumption mode, the display control device generates second graphic data according to the data to be displayed, and outputs the second graphic data to the screen for display.
  • the resolution of the second graphics data is the first resolution.
  • the method for generating the second graphic data according to the data to be displayed in the step 204 is not described herein again. Referring to the corresponding embodiment in FIG. 1 , the method for generating the first graphic data according to the data to be displayed is not described herein.
  • the display control device determines to convert the data to be displayed into the first graphics data of the second resolution or the second graphics data of the first resolution according to the mode in which the terminal is located, and the terminal is in the low power consumption.
  • the mode is used, the processing complexity of the operating system kernel data can be reduced, and the power consumption of the whole machine can be reduced without affecting the performance of the system.
  • an embodiment of the present invention provides a method for displaying data on a screen.
  • the resolution of the screen is a first resolution, and includes the following steps:
  • the display control device determines whether the power consumption of the one or more devices of the processed image display is greater than or equal to a preset value.
  • the device for processing the image display here may be a CPU; when the terminal mainly processes the image display through the GPU, the device for processing the image display may be a GPU; of course, the device for processing the image display may also include CPU, GPU, and other devices related to image processing display.
  • the display control device When the power consumption of the one or more devices that process the image display is greater than or equal to the preset value, the display control device generates the first graphic data according to the data to be displayed.
  • the resolution of the first graphics data is the second resolution.
  • the specific method of step 302 is not described again with reference to the description of the embodiment corresponding to FIG. 1.
  • the display control device converts the resolution of the first graphic data into the first resolution, and outputs the image to the screen for display, wherein the first resolution is greater than the second resolution.
  • the specific method of step 303 will not be described again with reference to the description of the embodiment corresponding to FIG. 1.
  • the display control device When the power consumption of the one or more devices that process the image display is less than the preset value, the display control device generates the second graphic data according to the data to be displayed, and outputs the second graphic data to The screen is displayed.
  • the resolution of the second graphics data is the first resolution.
  • the method for generating the second graphic data according to the data to be displayed in the step 304 is not described herein again. Referring to the corresponding embodiment of FIG. 1 , the method for generating the first graphic data according to the data to be displayed is not described herein.
  • the display control device converts the data to be displayed into the first graphic data of the second resolution or the second of the first resolution according to the power consumption of the one or more devices displayed by the terminal processing image.
  • Graphic data can reduce the processing complexity of the operating system kernel data when the power consumption of the device in the terminal processing image display is too large, and reduce the power consumption of the whole machine without affecting the system performance.
  • a method for displaying data on a screen having a resolution of a first resolution according to an embodiment of the present invention generating first graphics data of a second resolution according to data to be displayed; converting resolution of the first graphics data into After the resolution is output to the screen for display, wherein the first resolution is greater than the second resolution, since the data to be displayed generates the first graphics data and is processed at the second resolution, the processing of the operating system kernel data can be reduced.
  • the complexity reduces the power consumption of the whole system without affecting the performance of the system.
  • Embodiments of the present invention provide a display control apparatus for implementing the above method for displaying data on a screen.
  • the apparatus may be embedded or itself a microprocessor computer, such as: a general-purpose computer, a customized machine, and a mobile phone.
  • a portable device such as a terminal or a tablet includes: a communication interface 41, a processor 42, an amplification processing module 43, a memory 44, and a bus 45, wherein the communication interface 41, the processor 42, and the memory 44 pass through The buses 45 are connected to each other, and the memory 44 is used to store data processed by the processor 42 and the amplification processing module 43.
  • the bus 45 can be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component) bus, or an EISA (Extended Industry Standard Architecture) bus.
  • the bus 45 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 4, but it does not mean that there is only one bus or one type of bus. among them:
  • Memory 44 is for storing executable program code, the program code including computer operating instructions.
  • Memory 44 may include high speed RAM memory and may also include non-volatile memory, such as at least one disk storage device.
  • the processor 42 may be a CPU, a GPU, an Application Specific Integrated Circuit (ASIC), or a combination of one or more integrated circuits configured to implement embodiments of the present invention.
  • ASIC Application Specific Integrated Circuit
  • the processor 42 is configured to generate first graphics data according to data to be displayed, where a resolution of the first graphics data is a second resolution;
  • the enlargement processing module 43 is configured to convert a resolution of the first graphic data generated by the processor 42 into the first resolution, and output to the screen through the communication interface 41 for display, where The first resolution is greater than the second resolution.
  • the processor comprises: a combination of one or more of a central processing unit CPU, a graphics processing unit GPU, and other specific integrated circuit ASICs.
  • the amplification processing module 43 may be the processor 42 and the processor 42 adopts a CPU and/or a GPU as an example. At this time, the amplification processing module 43 converts the resolution of the first graphics data into the The first resolution may be implemented by image processing software running on the CPU and/or the GPU; or the amplification processing module 43 may also be a screen driving circuit or a display control circuit of the screen, wherein the screen driving circuit may be a screen driving software And a combination of screen driver software running hardware (screen driver circuit).
  • the processor 42 is further configured to determine whether the terminal where the screen is located is in a low power consumption mode; when the terminal is in the low power consumption mode, generate first graphic data according to data to be displayed. .
  • the processor 42 is further configured to: when the terminal is in the non-low power mode, generate second graphics data according to the data to be displayed, and output the second graphics data to the communication interface 41 to The screen is displayed; the resolution of the second graphic data is the first resolution.
  • the processor 42 is further configured to determine whether power consumption of the one or more devices that process the image display is greater than or equal to a preset value; when the power consumption of the one or more devices that process the image display is greater than or equal to When the preset value is described, the first graphic data is generated according to the data to be displayed.
  • the processor 42 is further configured to: when the power consumption of the one or more devices that process the image display is less than the preset value, generate the second graphic data according to the data to be displayed, and The second graphic data is output to the screen through the communication interface 41 for display; the resolution of the second graphic data is the first resolution.
  • the display control device provided by the embodiment of the present invention generates first graphics data of a second resolution according to data to be displayed; converts the resolution of the first graphics data into a first resolution, and outputs the image to the screen for display, where A resolution is greater than the second resolution. Since the data to be displayed generates the first graphics data and is processed at the second resolution, the processing complexity of the operating system kernel data can be reduced, without substantially affecting system performance. , reduce the power consumption of the whole machine, and reduce the bandwidth occupancy of each component of the kernel due to the lower resolution of the data processed by the kernel.
  • the method for displaying data on the screen provided by the embodiment of the present invention is provided.
  • the method is described, wherein the first resolution is 1080P and the second resolution is 720P.
  • the current status screen displays data at a first resolution of 1080P.
  • the Android operating system includes: From the upper layer to the lower layer, respectively, the Applications layer, the Framework layer, the Libraries layer, and the Kernel layer.
  • the Kernel layer switching resolution is: The current state operating system instructs the CPU (or CPU and GPU) to generate graphics data at 1080P resolution, and the operating system switches the CPU (or CPU and GPU) to generate image data at 720P resolution by setting the application.
  • the following screens are all described by LCD (Liquid Crystal Display).
  • the control commands can be written to the window manager service through the AM interface of the Android framework.
  • the control command is OK. Switching to the application of low-resolution instructions, the control command can be set to switch to low-resolution processing of the data to be displayed, such as low-resolution, ultra-low power, etc., depending on the application scenario.
  • the switching process can be triggered by the mobile phone operating system to determine whether the mobile phone is in a low power mode, or the switching process can also be triggered by the operating system to determine the power consumption of the device for processing the image display.
  • the operating system processes the image jointly by the CPU and the GPU. Display, when the CPU and GPU will generate data of 1080P to be displayed, the power consumption of the graphics data is greater than or equal to the preset value automatically triggers the switching process, the operating system switches the CPU (or CPU and GPU) resolution to 720P, ie the CPU and GPU will The data to be displayed generates 720P of graphics data; the above process mainly occurs in the kernel kernel layer of the operating system.
  • the framework layer switches the resolution, the operating system sets the system's underlying resolution to 720P, and then delivers the image frame of the 720P graphics data to the frame buffer at a predetermined resolution through the Surfaceflinger (Android display delivery module), in the frame buffer.
  • the resolution is displayed on the display screen.
  • the screen driver module enlarges the image frame from 720P to 1080P (the resolution of the displayed data is converted from 720p).
  • Embodiments of the present invention provide a way to display data on a screen through a kernel interrupt.
  • the operating system sets a different resolution on the hardware through a frame buffer driver call frame buffer interface at the Kernel layer, and transmits it through the upper application software.
  • the parameter is used for resolution switching.
  • the specific upper-layer application software switching resolution function is used to call the LCD by using the int-check ( ) function in the frame buffer driver.
  • This embodiment uses an LCD as an example. It can be understood that the present invention can also be used.
  • Other types of display status check, determine whether the LCD supports resolution switching, save frame buffer information and define a flag to mark whether resolution switching can be performed; as shown in Figure 6, it can pass LDI between image frames (Layered Driver Interface)
  • the frame end interrupt triggers the resolution switching.
  • the screen driver module detects the end of the LDI frame interrupt, it calls the interrupt handler to obtain the information in the flag. If the information in the flag indicates Perform resolution switching, then set LDI parameters (including operating system instructions) Resolution parameters such as 1080P or 720 ⁇ , and the ESD (Enhanced Display Controller) display control parameters are switched to the second resolution.
  • Android Surfaceflinger takes 720P graphics data from the memory.
  • converting graphic data of 720P into graphic data of 1080P may also directly pass graphic data of EDC, G2D, G3D to 720P. This is done during the display process.
  • the image magnification algorithm software running on the CPU and / or GPU will be 720P
  • the graphics data is enlarged to generate 1080P graphics data, and the 1080P graphics data is separately imported into the EDC, G2D, and G3D modules for display processing.
  • the resolution of the second resolution 720P graphic data is enlarged, the effect of full screen display can be ensured, thereby ensuring the user experience.
  • aspects of the invention, or possible implementations of various aspects may be embodied as a system, method, or computer program product.
  • aspects of the invention, or possible implementations of various aspects may be in the form of an entirely hardware embodiment, an entirely software embodiment (including firmware, resident software, etc.), or a combination of software and hardware aspects, They are collectively referred to herein as "circuits," “modules,” or “systems.”
  • aspects of the invention, or possible implementations of various aspects may take the form of a computer program product, which is a computer readable program code stored in a computer readable medium.
  • the computer readable medium can be a computer readable signal medium or a computer readable storage medium.
  • the computer readable storage medium includes, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or any suitable combination of the foregoing, such as random access memory (RAM), read only memory (ROM), Erase programmable read-only memory (EPROM or flash memory), optical fiber, portable read-only memory (CD-ROM).
  • the processor in the computer reads the computer readable program code stored in the computer readable medium, such that the processor can perform the functional actions specified in each step or combination of steps in the flowchart; A device that functions as specified in each block, or combination of blocks.

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  • Physics & Mathematics (AREA)
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  • Controls And Circuits For Display Device (AREA)

Abstract

Les modes de réalisation de la présente invention appartiennent au domaine des dispositifs électroniques manufacturés. L'invention concerne un procédé d'affichage de données sur un écran, et un appareil de commande d'affichage. L'invention vise à réduire la consommation globale d'énergie du système sans affecter ses performances. Une résolution de l'écran est une première résolution. Le procédé consiste à : générer des premières données graphiques d'après des données à afficher, une résolution des premières données graphiques étant une seconde résolution ; et convertir la résolution des premières données graphiques à la première résolution et envoyer les premières données graphiques à l'écran en vue de leur affichage, la première résolution étant supérieure à la seconde résolution. Des modes de réalisation de la présente invention sont utilisés pour commander l'affichage de données.
PCT/CN2014/076394 2014-04-28 2014-04-28 Procédé d'affichage de données sur un écran, et appareil de commande d'affichage Ceased WO2015165013A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201480004980.0A CN104981766B (zh) 2014-04-28 2014-04-28 一种在屏幕上显示数据的方法及显示控制装置
CN201910786633.2A CN110688081B (zh) 2014-04-28 2014-04-28 一种在屏幕上显示数据的方法及显示控制装置
PCT/CN2014/076394 WO2015165013A1 (fr) 2014-04-28 2014-04-28 Procédé d'affichage de données sur un écran, et appareil de commande d'affichage

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PCT/CN2014/076394 WO2015165013A1 (fr) 2014-04-28 2014-04-28 Procédé d'affichage de données sur un écran, et appareil de commande d'affichage

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CN106970768A (zh) * 2016-01-13 2017-07-21 福州瑞芯微电子股份有限公司 基于Android系统的支持多分辨率无缩放显示的方法及系统
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CN109587560A (zh) * 2018-11-27 2019-04-05 Oppo广东移动通信有限公司 视频处理方法、装置、电子设备以及存储介质
CN109814785A (zh) * 2019-01-18 2019-05-28 深圳云瀚科技有限公司 基于外部设备的图像处理方法和装置
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