WO2024077992A1 - 驱动电路、显示面板和显示装置 - Google Patents

驱动电路、显示面板和显示装置 Download PDF

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Publication number
WO2024077992A1
WO2024077992A1 PCT/CN2023/100389 CN2023100389W WO2024077992A1 WO 2024077992 A1 WO2024077992 A1 WO 2024077992A1 CN 2023100389 W CN2023100389 W CN 2023100389W WO 2024077992 A1 WO2024077992 A1 WO 2024077992A1
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WIPO (PCT)
Prior art keywords
subcircuit
light
electrically connected
driving transistor
data input
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/CN2023/100389
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English (en)
French (fr)
Inventor
周仁杰
李荣荣
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HKC Co Ltd
Original Assignee
HKC Co Ltd
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Filing date
Publication date
Application filed by HKC Co Ltd filed Critical HKC Co Ltd
Priority to JP2025517409A priority Critical patent/JP2025531405A/ja
Priority to EP23876203.3A priority patent/EP4597480A4/en
Priority to KR1020257015403A priority patent/KR20250087646A/ko
Publication of WO2024077992A1 publication Critical patent/WO2024077992A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • G09G3/22—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 using controlled light sources
    • G09G3/30—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 using controlled light sources using electroluminescent panels
    • G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • 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
    • G09G3/22—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 using controlled light sources
    • G09G3/30—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 using controlled light sources using electroluminescent panels
    • G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • 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
    • G09G3/22—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 using controlled light sources
    • G09G3/30—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 using controlled light sources using electroluminescent panels
    • G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • G09G3/3233—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809—Several active elements per pixel in active matrix panels
    • G09G2300/0814—Several active elements per pixel in active matrix panels used for selection purposes, e.g. logical AND for partial update
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809—Several active elements per pixel in active matrix panels
    • G09G2300/0833—Several active elements per pixel in active matrix panels forming a linear amplifier or follower
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809—Several active elements per pixel in active matrix panels
    • G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809—Several active elements per pixel in active matrix panels
    • G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
    • G09G2300/0861—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor with additional control of the display period without amending the charge stored in a pixel memory, e.g. by means of additional select electrodes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0243—Details of the generation of driving signals
    • G09G2310/0254—Control of polarity reversal in general, other than for liquid crystal displays
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits
    • G09G2310/0291—Details of output amplifiers or buffers arranged for use in a driving circuit
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/04—Maintaining the quality of display appearance
    • G09G2320/043—Preventing or counteracting the effects of ageing

Definitions

  • the present application relates to the field of display technology, and in particular to a driving circuit, a display panel having the driving circuit, and a display device having the display panel.
  • the life of the thin film field effect transistor is shortened due to the long-term driving of the DC data (Data) signal, thus affecting the service life of the product.
  • the purpose of the present application is to provide a driving circuit to solve the problem of shortening the life of TFT due to long-term driving of DC Data signals, so as to increase the service life of the product.
  • the present application provides a driving circuit, which includes: a first light-emitting control subcircuit and a second light-emitting control subcircuit, both of which are electrically connected to a light-emitting unit, an energy storage element, an operation subcircuit, a first data input subcircuit, a second data input subcircuit and a first power supply voltage terminal, and the first light-emitting control subcircuit and the second light-emitting control subcircuit are both used to drive the light-emitting unit to emit light; the anode of the light-emitting unit is electrically connected to the first light-emitting control subcircuit, the second light-emitting control subcircuit, the energy storage element and the operation subcircuit, and the cathode of the light-emitting unit is electrically connected to the second power supply voltage terminal for emitting light; the energy storage element is electrically connected to the operation subcircuit for storing electrical energy; the operation subcircuit is electrically
  • the present application also provides a display panel, which includes the above-mentioned driving circuit, wherein the driving circuit is used to display images.
  • the present application also provides a display device, which includes the above-mentioned display panel.
  • the storage capacitor starts to charge, and when the voltage at the electrical connection point between the energy storage element and the operation subcircuit is less than the reference voltage output by the reference voltage terminal, the amplifier outputs a low-level signal, the first data input subcircuit is turned on, and the first data signal input by the first data signal terminal is transmitted to the gate of the first driving transistor and the gate of the second driving transistor, and the first driving transistor or the second driving transistor is turned on.
  • the amplifier When the voltage at the electrical connection point between the energy storage element and the operation subcircuit is greater than the reference voltage output by the reference voltage terminal, the amplifier outputs a high-level signal, the second switching transistor is turned on, and the second data signal input by the second data signal terminal is transmitted to the gate of the first driving transistor and the gate of the second driving transistor, and the first driving transistor or the second driving transistor is turned on, thereby switching the DC drive to the AC drive, effectively improving the display life of the TFT.
  • FIG. 1 is a schematic diagram of the structure of a display panel provided in an embodiment of the present application.
  • FIG. 2 is a circuit diagram of a driving circuit provided in an embodiment of the present application.
  • FIG. 3 is a schematic diagram of the circuit structure of the driving circuit shown in FIG. 2 .
  • FIG. 4 is a timing diagram of a driving circuit provided in an embodiment of the present application.
  • FIG. 5 is another timing diagram of the driving circuit provided in an embodiment of the present application.
  • connection and “coupling” mentioned in the present application, unless otherwise specified, include direct and indirect connections (couplings).
  • the directional terms mentioned in the present application, such as “upper”, “lower”, “front”, “back”, “left”, “right”, “inside”, “outside”, “side”, etc., are only with reference to the directions of the attached drawings.
  • the terms “installed”, “connected”, and “connected” should be understood in a broad sense.
  • it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be internal communication between two components.
  • installed should be understood in a broad sense.
  • it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be internal communication between two components.
  • the specific meanings of the above terms in this application can be understood according to specific circumstances.
  • the terms “first”, “second”, etc. in the specification, claims, and drawings of the present application are used to distinguish different objects, rather than to describe a specific order.
  • the terms “include”, “may include”, “contain”, or “may include” used in this application indicate the existence of the corresponding functions, operations, elements, etc. disclosed, and do not limit one or more other functions, operations, elements, etc.
  • the terms “include” or “contain” indicate the existence of the corresponding features, numbers, steps, operations, elements, components, or combinations thereof disclosed in the specification, and do not exclude the existence or addition of one or more functions, operations, elements, etc.
  • a plurality of other features, numbers, steps, operations, elements, components or combinations thereof are intended to cover non-exclusive inclusions.
  • the use of “may” means “one or more embodiments of the present application”.
  • the term “exemplary” is intended to refer to an example or illustration.
  • the embodiments of the present application hope to provide a technical solution of a driving circuit, a display panel and a display device that can solve the above technical problems, thereby solving the problem of shortening the life of a thin film field effect transistor (TFT) due to long-term driving of a DC Data signal, so as to improve the service life of the product.
  • TFT thin film field effect transistor
  • the display panel 10 includes a display area (Active Area) 11 and a non-display area 12. Among them, the display area 11 is used for image display, and the non-display area 12 is surrounded by the display area 11 and is not used for image display.
  • the display panel 10 also includes a plurality of driving circuits 100, and the plurality of driving circuits 100 are all arranged in the display area 11 for displaying images.
  • the display panel 10 can be a micron light-emitting diode (Micro Light-Emitting Diode, Micro LED) display panel or an organic light-emitting diode (Organic Light-Emitting Diode, OLED) display panel, but the present application is not limited thereto.
  • Micro Light-Emitting Diode Micro Light-Emitting Diode, Micro LED
  • organic light-emitting diode Organic Light-Emitting Diode, OLED
  • the display panel 10 can be used for electronic devices including functions such as a personal digital assistant (PDA) and/or a music player, such as a mobile phone, a tablet computer, a wearable electronic device with a wireless communication function (such as a smart watch, a smart bracelet), etc.
  • PDA personal digital assistant
  • the above-mentioned electronic device may also be other electronic devices, such as a laptop computer (Laptop) with a touch-sensitive surface (such as a touch panel), etc.
  • the electronic device may have a communication function, that is, it may establish communication with the network through 2G (second-generation mobile phone communication technology specifications), 3G (third-generation mobile phone communication technology specifications), 4G (fourth-generation mobile phone communication technology specifications), 5G (fifth-generation mobile phone communication technology specifications) or W-LAN (wireless local area network) or communication methods that may appear in the future.
  • 2G second-generation mobile phone communication technology specifications
  • 3G third-generation mobile phone communication technology specifications
  • 4G fourth-generation mobile phone communication technology specifications
  • 5G fifth-generation mobile phone communication technology specifications
  • W-LAN wireless local area network
  • FIG2 is a circuit diagram of a driving circuit provided in an embodiment of the present application.
  • the driving circuit 100 provided in the present application may at least include a first light-emitting control subcircuit 110, a second light-emitting control subcircuit 120, a light-emitting unit 140, an energy storage element 150, an operation subcircuit 160, a first digital
  • the first data input sub-circuit 180 and the second data input sub-circuit 190 are connected to the circuit.
  • the first light control subcircuit 110 is electrically connected to the second light control subcircuit 120, the light emitting unit 140, the energy storage element 150, the operation subcircuit 160, the first data input subcircuit 180, the second data input subcircuit 190 and the first power supply voltage terminal 210, and is used to drive the light emitting unit 140 to emit light.
  • the first power supply voltage terminal 210 receives a first power supply voltage V dd .
  • the second light-emitting control subcircuit 120 is electrically connected to the first light-emitting control subcircuit 110, the light-emitting unit 140, the energy storage element 150, the operation subcircuit 160, the first data input subcircuit 180, the second data input subcircuit 190 and the first power supply voltage terminal 210, and is used to drive the light-emitting unit 140 to emit light.
  • the anode of the light emitting unit 140 is electrically connected to the first light emitting control subcircuit 110, the second light emitting control subcircuit 120, the energy storage element 150 and the operation subcircuit 160, and the cathode of the light emitting unit 140 is electrically connected to the second power supply voltage terminal 220 for emitting light.
  • the second power supply voltage terminal 220 receives a second power supply voltage V ss , which is a cathode connection reference voltage.
  • the light emitting unit 140 may be a Micro LED.
  • the energy storage element 150 is electrically connected to the first light-emitting control subcircuit 110, the second light-emitting control subcircuit 120, the light-emitting unit 140 and the operation subcircuit 160 for storing electric energy. After the energy storage element 150 is charged, a point D located between the second light-emitting control subcircuit 120 and the energy storage element 150 (e.g., the midpoint position) and electrically connected to the operation subcircuit 160 obtains a point D voltage.
  • the operation subcircuit 160 is electrically connected to the second light-emitting control subcircuit 120, the energy storage element 150, the first data input subcircuit 180, the second data input subcircuit 190 and the reference voltage terminal 230, and is used to compare the voltage at point D with the reference voltage V ref received by the reference voltage terminal 230 to obtain an output signal, and transmit the output signal to the first data input subcircuit 180 and the second data input subcircuit 190.
  • the reference voltage terminal 230 receives the reference voltage V ref .
  • the first data input subcircuit 180 is electrically connected to the first light emitting control subcircuit 110, the second light emitting control subcircuit 120, the operation subcircuit 160, the second data input subcircuit 190 and the first data signal terminal 250, and is used to output the output signal transmitted by the operation subcircuit 160.
  • the first data signal terminal 250 is turned on or off, the first data signal inputted from the first data signal terminal 250 is transmitted to the first light-emitting control subcircuit 110 and the second light-emitting control subcircuit 120 to drive the light-emitting unit 140 to emit light.
  • the first data signal may be a DC data signal.
  • the second data input subcircuit 190 is electrically connected to the first light-emitting control subcircuit 110, the second light-emitting control subcircuit 120, the operation subcircuit 160, the first data input subcircuit 180 and the second data signal terminal 260, and is used to be turned on or off according to the output signal transmitted by the operation subcircuit 160, and when turned on, the second data signal input by the second data signal terminal 260 is transmitted to the first light-emitting control subcircuit 110 and the second light-emitting control subcircuit 120, so as to drive the light-emitting unit 140 to emit light.
  • the second data signal is an AC data signal.
  • the energy storage element 150 starts charging.
  • the operation subcircuit 160 outputs a low-level signal
  • the first data input subcircuit 180 is turned on
  • the first data signal input by the first data signal terminal 250 is transmitted to the first light-emitting control subcircuit 110 and the second light-emitting control subcircuit 120
  • the first light-emitting control subcircuit 110 or the second light-emitting control subcircuit 120 is turned on
  • the operation subcircuit 160 outputs a high-level signal
  • the second data input subcircuit 190 is turned on
  • the second data signal input by the second data signal terminal 260 is transmitted to the first light-emitting control subcircuit 110 and the second light-emitting control subcircuit 120, and the first light-emitting control
  • the first light-emitting control subcircuit 110 in the driving circuit 100 provided in the present application includes a first driving transistor T1, the gate of the first driving transistor T1 is electrically connected to the second light-emitting control subcircuit 120, the first data input subcircuit 180 and the second data input subcircuit 190, the drain of the first driving transistor T1 is electrically connected to the second light-emitting control subcircuit 120 and the first power supply voltage terminal 210, and the source of the first driving transistor T1 is electrically connected to the second light-emitting control subcircuit 120, the anode of the light-emitting unit 140, the energy storage element 150 and the operation subcircuit 160.
  • the first driving transistor T1 is used to drive the light-emitting unit 140 to emit light.
  • the first driving transistor T1 may be an N-type transistor.
  • the second light emitting control subcircuit 120 includes a second driving transistor T2.
  • the gate of the transistor T2 is electrically connected to the gate of the first driving transistor T1, the first data input sub-circuit 180 and the second data input sub-circuit 190
  • the source of the second driving transistor T2 is electrically connected to the drain of the first driving transistor T1 and the first power supply voltage terminal 210
  • the drain of the second driving transistor T2 is electrically connected to the source of the first driving transistor T1, the anode of the light emitting unit 140, the energy storage element 150 and the operation sub-circuit 160.
  • the second driving transistor T2 is used to drive the light emitting unit 140 to emit light.
  • the second driving transistor T2 may be a P-type transistor.
  • the energy storage element 150 includes a storage capacitor C1, a first end of the storage capacitor C1 is electrically connected to the source of the first driving transistor T1, the anode of the light-emitting unit 140, the drain of the second driving transistor T2 and the operator circuit 160, and a second end of the storage capacitor C1 is grounded for charging and storing electrical energy.
  • the operation subcircuit 160 includes an amplifier U1, a non-inverting input terminal of the amplifier U1 is electrically connected between the drain of the second driving transistor T2 and the first terminal of the storage capacitor C1, and is used to receive the voltage at the point D, an inverting input terminal of the amplifier U1 is used to input the reference voltage V ref received by the reference voltage terminal 230, and an output terminal of the amplifier U1 is electrically connected to the first data input subcircuit 180 and the second data input subcircuit 190.
  • the amplifier U1 is used to compare the voltage at the point D with the reference voltage V ref received by the reference voltage terminal 230 to obtain a corresponding output signal, and transmit the output signal to the first data input subcircuit 180 and the second data input subcircuit 190.
  • the amplifier U1 may be an operational amplifier (OP).
  • OP operational amplifier
  • the first data input sub-circuit 180 includes a first switch transistor T3, a gate of the first switch transistor T3 is electrically connected to the output terminal of the amplifier U1 and the second data input sub-circuit 190, a source of the first switch transistor T3 is electrically connected to the first data signal terminal 250, and a drain of the first switch transistor T3 is electrically connected to the gate of the first driving transistor T1, the gate of the second driving transistor T2, and the second data input sub-circuit 190.
  • the first switch transistor T3 is used to be turned on or off according to the output signal transmitted from the output terminal of the amplifier U1, and when turned on, transmits the first data signal input from the first data signal terminal 250 to the gate of the first driving transistor T1 and the gate of the second driving transistor T2.
  • the first switch transistor T3 may be a P-type transistor.
  • the second data input sub-circuit 190 includes a second switch transistor T4, the gate of the second switch transistor T4 is electrically connected to the output terminal of the amplifier U1 and the gate of the first switch transistor T3, the source of the second switch transistor T4 is electrically connected to the gate of the first drive transistor T1, the gate of the second drive transistor T2 and the drain of the first switch transistor T3, and the drain of the second switch transistor T4 is electrically connected to the second data signal terminal 260.
  • the second switch transistor T4 is used to be turned on or off according to the output signal transmitted from the output terminal of the amplifier U1, and when turned on, transmits the second data signal input from the second data signal terminal 260 to the gate of the first drive transistor T1 and the gate of the second drive transistor T2.
  • the second switch transistor T4 may be an N-type transistor.
  • FIG. 4 is a timing diagram of the driving circuit provided in an embodiment of the present application.
  • the gate of the first driving transistor T1 and the gate of the second driving transistor T2 input the first data signal
  • the first driving transistor T1 or the second driving transistor T2 is turned on, thereby driving the light-emitting unit 140 to emit light, and the storage capacitor C1 starts to charge.
  • the voltage at point D is less than the reference voltage V ref output by the reference voltage terminal 230, the output terminal of the amplifier U1 outputs a low-level signal, the first switch transistor T3 is turned on, and the first data signal input by the first data signal terminal 250 is transmitted to the gate of the first driving transistor T1 and the gate of the second driving transistor T2, and the first driving transistor T1 or the second driving transistor T2 works.
  • FIG5 is another timing diagram of the driving circuit provided in the embodiment of the present application. Specifically, two stages t1 and t2 in the timing diagram shown in FIG5 are selected. The details of the timing diagram of the driving circuit shown in FIG5 will be described in subsequent embodiments.
  • the second data signal inputted by the second data signal terminal 260 is transmitted to the gate of the first driving transistor T1 and the gate of the second driving transistor T2, the first driving transistor T1 or the second driving transistor T2 is turned on, thereby driving the light-emitting unit 140 to emit light, and the storage capacitor C1 starts to charge.
  • the output terminal of the amplifier U1 When the voltage at the point D is greater than the reference voltage V ref outputted by the reference voltage terminal 230, the output terminal of the amplifier U1 outputs a level signal, the second switch transistor T4 is turned on, and the second data signal inputted by the second data signal terminal 260 is transmitted to the gate of the first driving transistor T1 and the gate of the second driving transistor T2, and the first driving transistor T1 and the second driving transistor T2 work alternately with t1 and t2 as the cycle.
  • stage t1 when the second data signal is input to the second data signal terminal 260, the second data signal input to the second data signal terminal 260 is transmitted to the gate of the first driving transistor T1 and the gate of the second driving transistor T2, and the first driving transistor T1 is turned on, thereby driving the light-emitting unit 140 to emit light.
  • the second data signal is input to the second data signal terminal 260, the second data signal is transmitted to the gate of the first driving transistor T1 and the gate of the second driving transistor T2, and the second driving transistor T2 is turned on, thereby driving the light-emitting unit 140 to emit light.
  • the storage capacitor C1 starts to charge.
  • the amplifier U1 outputs a low-level signal
  • the first data input subcircuit 180 is turned on, and the first data signal input by the first data signal terminal 250 is transmitted to the gate of the first driving transistor T1 and the gate of the second driving transistor T2, and the first driving transistor T1 or the second driving transistor T2 is turned on.
  • the amplifier U1 When the voltage at the point D is greater than the reference voltage V ref output by the reference voltage terminal 230, the amplifier U1 outputs a high-level signal, the second switch transistor T4 is turned on, and the second data signal input by the second data signal terminal 260 is transmitted to the gate of the first driving transistor T1 and the gate of the second driving transistor T2, and the first driving transistor T1 or the second driving transistor T2 is turned on, thereby switching the DC drive to the AC drive, effectively improving the display life of the TFT.
  • the present application also provides a display device, which includes the above-mentioned display panel.
  • the display device includes but is not limited to: Micro LED panels, mobile phones, tablet computers, navigators, displays, and any other electronic devices or components with display functions, and the present application does not impose specific restrictions on this.
  • the specific type of the display device is not particularly limited, and those skilled in the art can design it accordingly according to the specific use requirements of the display device, which will not be repeated here.
  • the display device also includes other necessary components and components such as a power board, a high-voltage board, and a button control board.
  • a power board such as a cordless power board, a cordless power board, and a cordless power supply.
  • a high-voltage board such as a cordless power supply.
  • a button control board such as a button switch.
  • Those skilled in the art may make corresponding supplements based on the specific type and actual functions of the display device, which will not be repeated here.

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Abstract

本申请提供一种驱动电路、显示面板和显示装置。驱动电路(100)的第一发光控制子电路(110)和第二发光控制子电路(120)均驱动发光单元(140)发光；运算子电路(160)将储能元件(150)与运算子电路(160)电性连接点的电压与参考电压比较得到输出信号；第一数据输入子电路(180)根据输出信号在导通时将第一数据信号传输给第一发光控制子电路(110)和第二发光控制子电路(120)，以驱动发光单元(140)发光；第二数据输入子电路(190)根据输出信号在导通时将第二数据信号传输给第一发光控制子电路(110)和第二发光控制子电路(120)，以驱动发光单元(140)发光，从而将直流驱动切换成交流驱动，可提高TFT的显示寿命。

Description

驱动电路、显示面板和显示装置
本申请要求于2022年10月12日提交至中国知识产权局，申请号为202211248818.6，申请名称为“驱动电路、显示面板和显示装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及显示技术领域，尤其涉及一种驱动电路、一种具有该驱动电路的显示面板和一种具有该显示面板的显示装置。
背景技术
目前，显示屏幕长时间工作时，由于直流数据(Data)信号长时间驱动，导致薄膜场效应晶体管(Thin Film Transistor，TFT)的寿命缩短，从而影响产品的使用寿命。
因此，如何解决由于直流Data信号长时间驱动导致TFT的寿命缩短的问题是本领域技术人员亟待解决的问题。
发明内容
鉴于上述现有技术的不足，本申请的目的在于提供一种驱动电路，解决由于直流Data信号长时间驱动导致TFT的寿命缩短的问题，以提高产品的使用寿命。
为解决上述技术问题，第一方面，本申请提供一种驱动电路，其包括：第一发光控制子电路和第二发光控制子电路，均与发光单元、储能元件、运算子电路、第一数据输入子电路、第二数据输入子电路以及第一电源电压端电性连接，所述第一发光控制子电路和所述第二发光控制子电路均用于驱动所述发光单元发光；所述发光单元的阳极与所述第一发光控制子电路、所述第二发光控制子电路、所述储能元件及所述运算子电路电性连接，所述发光单元的阴极与第二电源电压端电性连接，用于发光；所述储能元件，与所述运算子电路电性连接，用于存储电能；所述运算子电路，与所述第一数据输入子电路、所述第二数据输入子电路以及参考电压端电性连接，用于将所述储能元件与所述运算子电路电性连接点的电压与所述参考电压端接收的参考电压进行比较得到输出 信号，并将所述输出信号传输给所述第一数据输入子电路以及所述第二数据输入子电路；所述第一数据输入子电路，与所述第二数据输入子电路以及第一数据信号端电性连接，用于根据所述运算子电路传输的输出信号导通或关断，并在导通时将所述第一数据信号端输入的第一数据信号传输给所述第一发光控制子电路和所述第二发光控制子电路，用于驱动所述发光单元发光；所述第二数据输入子电路，与第二数据信号端电性连接，用于根据所述运算子电路传输的输出信号导通或关断，并在导通时将所述第二数据信号端输入的第二数据信号传输给所述第一发光控制子电路和所述第二发光控制子电路，用于驱动所述发光单元发光。
基于同样的构思，第二方面，本申请还提供一种显示面板，其包括上述的驱动电路，其中，所述驱动电路用于显示图像。
基于同样的构思，第三方面，本申请还提供一种显示装置，其包括上述的显示面板。
综上所述，在本申请的驱动电路、显示面板及显示装置中，所述发光单元开始工作后，所述存储电容开始充电，当所述储能元件与所述运算子电路电性连接点的电压小于所述参考电压端输出的参考电压，所述放大器输出低电平信号，所述第一数据输入子电路导通，将所述第一数据信号端输入的第一数据信号传输给所述第一驱动晶体管的栅极和所述第二驱动晶体管的栅极，所述第一驱动晶体管或所述第二驱动晶体管导通。当所述储能元件与所述运算子电路电性连接点的电压大于所述参考电压端输出的参考电压，所述放大器输出高电平信号，所述第二开关晶体管导通，将所述第二数据信号端输入的第二数据信号传输给所述第一驱动晶体管的栅极和所述第二驱动晶体管的栅极，所述第一驱动晶体管或所述第二驱动晶体管导通，从而将直流驱动切换成交流驱动，有效提高TFT的显示寿命。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本申请的一些实施例，对于本领普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请实施例提供的一种显示面板的结构示意图。
图2为本申请实施例提供的一种驱动电路的电路示意图。
图3为图2所示驱动电路的电路结构示意图。
图4为本申请实施例提供的驱动电路的时序图。
图5为本申请实施例提供的驱动电路的另一种时序图。
具体实施方式
为了便于理解本申请，下面将参照相关附图对本申请进行更全面的描述。附图中给出了本申请的较佳实施方式。但是，本申请可以以许多不同的形式来实现，并不限于本文所描述的实施方式。相反地，提供这些实施方式的目的是使对本申请的公开内容理解的更加透彻全面。
以下各实施例的说明是参考附加的图示，用以例示本申请可用以实施的特定实施例。本文中为部件所编序号本身，例如“第一”、“第二”等，仅用于区分所描述的对象，不具有任何顺序或技术含义。而本申请所说“连接”、“联接”，如无特别说明，均包括直接和间接连接(联接)。本申请中所提到的方向用语，例如，“上”、“下”、“前”、“后”、“左”、“右”、“内”、“外”、“侧面”等，仅是参考附加图式的方向，因此，使用的方向用语是为了更好、更清楚地说明及理解本申请，而不是指示或暗指所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸地连接，或者一体地连接；可以是机械连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。需要说明的是，本申请的说明书和权利要求书及附图中的术语“第一”、“第二”等是用于区别不同对象，而不是用于描述特定顺序。
此外，本申请中使用的术语“包括”、“可以包括”、“包含”、或“可以包含”表示公开的相应功能、操作、元件等的存在，并不限制其他的一个或多个更多功能、操作、元件等。此外，术语“包括”或“包含”表示存在说明书中公开的相应特征、数目、步骤、操作、元素、部件或其组合，而并不排除存在或添加一个或 多个其他特征、数目、步骤、操作、元素、部件或其组合，意图在于覆盖不排他的包含。此外，当描述本申请的实施方式时，使用“可”表示“本申请的一个或多个实施方式”。并且，用语“示例性的”旨在指代示例或举例说明。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本申请的说明书中所使用的术语只是为了描述具体的实施方式的目的，不是旨在于限制本申请。
本申请实施例希望提供一种能够解决上述技术问题的驱动电路、显示面板和显示装置的技术方案，从而能够解决由于直流Data信号长时间驱动导致薄膜场效应晶体管(Thin Film Transistor，TFT)的寿命缩短的问题，以提高产品的使用寿命。其详细内容将在后续实施例中得以阐述。
请参阅图1，其为本申请实施例提供的一种显示面板的结构示意图。本实施例中，所述显示面板10包括显示区(Active Area)11以及非显示区12。其中，所述显示区11用作图像显示，所述非显示区12围设于所述显示区11周围，并不用作图像显示。所述显示面板10还包括多个驱动电路100，多个所述驱动电路100均设置于所述显示区11，用于显示图像。可以理解，在一些实施方式中，所述显示面板10可以为微米发光二极管(Micro Light-Emitting Diode，Micro LED)显示面板或有机发光二极管(Organic Light-Emitting Diode，OLED)显示面板，但本申请并不以此为限。
可以理解地，所述显示面板10可用于包含诸如个人数字助理(Personal Digital Assistant，PDA)和/或音乐播放器功能的电子设备，诸如手机、平板电脑、具备无线通讯功能的可穿戴电子设备(如智能手表、智能手环)等。上述电子设备也可以是其它电子装置，诸如具有触敏表面(例如触控面板)的膝上型计算机(Laptop)等。在一些实施例中，所述电子设备可以具有通信功能，即可以通过2G(第二代手机通信技术规格)、3G(第三代手机通信技术规格)、4G(第四代手机通信技术规格)、5G(第五代手机通信技术规格)或W-LAN(无线局域网)或今后可能出现的通信方式与网络建立通信。为简明起见，对此本申请实施例不做进一步限定。
请参阅图2，其为本申请实施例提供的一种驱动电路的电路示意图。如图2所示，本申请提供的驱动电路100至少可以包括第一发光控制子电路110、第二发光控制子电路120、发光单元140、储能元件150、运算子电路160、第一数 据输入子电路180以及第二数据输入子电路190。
其中，所述第一发光控制子电路110与所述第二发光控制子电路120、所述发光单元140、所述储能元件150、所述运算子电路160、所述第一数据输入子电路180、所述第二数据输入子电路190以及第一电源电压端210电性连接，用于驱动所述发光单元140进行发光。其中，所述第一电源电压端210接收第一电源电压Vdd。
所述第二发光控制子电路120与所述第一发光控制子电路110、所述发光单元140、所述储能元件150、所述运算子电路160、所述第一数据输入子电路180、所述第二数据输入子电路190以及第一电源电压端210电性连接，用于驱动所述发光单元140进行发光。
所述发光单元140的阳极与所述第一发光控制子电路110、所述第二发光控制子电路120、所述储能元件150以及所述运算子电路160电性连接，所述发光单元140的阴极与第二电源电压端220电性连接，用于发光。其中，所述第二电源电压端220接收第二电源电压Vss，所述第二电源电压Vss为阴极连接参考电压。
在本申请实施方式中，所述发光单元140可为Micro LED。
所述储能元件150与所述第一发光控制子电路110、所述第二发光控制子电路120、所述发光单元140以及所述运算子电路160电性连接，用于存储电能。其中，在所述储能元件150进行充电后，位于所述第二发光控制子电路120与所述储能元件150之间(例如中点位置)，并与所述运算子电路160电性连接的点D得到D点电压。
所述运算子电路160与所述第二发光控制子电路120、所述储能元件150、所述第一数据输入子电路180、所述第二数据输入子电路190以及参考电压端230电性连接，用于将所述D点电压与所述参考电压端230接收的参考电压Vref进行比较得到输出信号，并将所述输出信号传输给所述第一数据输入子电路180以及所述第二数据输入子电路190。其中，所述参考电压端230接收所述参考电压Vref。
所述第一数据输入子电路180与所述第一发光控制子电路110、所述第二发光控制子电路120、所述运算子电路160、所述第二数据输入子电路190以及第一数据信号端250电性连接，用于根据所述运算子电路160传输的输出信号导 通或关断，并在导通时将所述第一数据信号端250输入的第一数据信号传输给所述第一发光控制子电路110和所述第二发光控制子电路120，用于驱动所述发光单元140发光。其中，所述第一数据信号可为直流数据信号。
所述第二数据输入子电路190与所述第一发光控制子电路110、所述第二发光控制子电路120、所述运算子电路160、所述第一数据输入子电路180及第二数据信号端260电性连接，用于根据所述运算子电路160传输的输出信号导通或关断，并在导通时将所述第二数据信号端260输入的第二数据信号传输给所述第一发光控制子电路110和所述第二发光控制子电路120，用于驱动所述发光单元140发光。其中，所述第二数据信号为交流数据信号。
综上所述，所述驱动电路中，所述发光单元140开始工作后，所述储能元件150开始充电，当所述D点电压小于所述参考电压端230输出的参考电压Vref，所述运算子电路160输出低电平信号，所述第一数据输入子电路180导通，将所述第一数据信号端250输入的第一数据信号传输给所述第一发光控制子电路110和所述第二发光控制子电路120，所述第一发光控制子电路110或所述第二发光控制子电路120导通；当所述D点电压大于所述参考电压端230输出的参考电压Vref，所述运算子电路160输出高电平信号，所述第二数据输入子电路190导通，将所述第二数据信号端260输入的第二数据信号传输给所述第一发光控制子电路110和所述第二发光控制子电路120，所述第一发光控制子电路110或所述第二发光控制子电路120导通，从而将直流驱动切换成交流驱动，有效提高TFT的显示寿命。
请参见图3，图3为图2所示驱动电路的电路结构示意图。如图3所示，本申请提供的驱动电路100中的所述第一发光控制子电路110包括第一驱动晶体管T1，所述第一驱动晶体管T1的栅极与所述第二发光控制子电路120、所述第一数据输入子电路180以及所述第二数据输入子电路190电性连接，所述第一驱动晶体管T1的漏极与所述第二发光控制子电路120以及第一电源电压端210电性连接，所述第一驱动晶体管T1的源极与所述第二发光控制子电路120、所述发光单元140的阳极、所述储能元件150以及所述运算子电路160电性连接。所述第一驱动晶体管T1用于驱动所述发光单元140进行发光。
在本申请实施方式中，所述第一驱动晶体管T1可为N型晶体管。
所述第二发光控制子电路120包括第二驱动晶体管T2，所述第二驱动晶体 管T2的栅极与所述第一驱动晶体管T1的栅极、所述第一数据输入子电路180以及所述第二数据输入子电路190电性连接，所述第二驱动晶体管T2的源极与所述第一驱动晶体管T1的漏极以及第一电源电压端210电性连接，所述第二驱动晶体管T2的漏极与所述第一驱动晶体管T1的源极、所述发光单元140的阳极、所述储能元件150以及所述运算子电路160电性连接。所述第二驱动晶体管T2用于驱动所述发光单元140进行发光。
在本申请实施方式中，所述第二驱动晶体管T2可为P型晶体管。
所述储能元件150包括存储电容C1，所述存储电容C1的第一端与所述第一驱动晶体管T1的源极、所述发光单元140的阳极、所述第二驱动晶体管T2的漏极以及所述运算子电路160电性连接，所述存储电容C1的第二端接地，用于充电并存储电能。
所述运算子电路160包括放大器U1，所述放大器U1的同相输入端电性连接于所述第二驱动晶体管T2的漏极与所述存储电容C1的第一端之间，用于接收所述D点电压，所述放大器U1的反相输入端用于输入所述参考电压端230接收的参考电压Vref，所述放大器U1的输出端与所述第一数据输入子电路180以及所述第二数据输入子电路190电性连接。所述放大器U1用于将所述D点电压与所述参考电压端230接收的参考电压Vref进行比较得到相应的输出信号，并将所述输出信号传输给所述第一数据输入子电路180以及所述第二数据输入子电路190。
在本申请实施方式中，放大器U1可为运算放大器(Operational Amplifier，OP)。
所述第一数据输入子电路180包括第一开关晶体管T3，所述第一开关晶体管T3的栅极与所述放大器U1的输出端以及所述第二数据输入子电路190电性连接，所述第一开关晶体管T3的源极与所述第一数据信号端250电性连接，所述第一开关晶体管T3的漏极与所述第一驱动晶体管T1的栅极、所述第二驱动晶体管T2的栅极以及所述第二数据输入子电路190电性连接。所述第一开关晶体管T3用于根据所述放大器U1的输出端传输的输出信号导通或关断，并在导通时将所述第一数据信号端250输入的第一数据信号传输给所述第一驱动晶体管T1的栅极和所述第二驱动晶体管T2的栅极。
在本申请实施方式中，所述第一开关晶体管T3可为P型晶体管。
所述第二数据输入子电路190包括第二开关晶体管T4，所述第二开关晶体管T4的栅极与所述放大器U1的输出端以及所述第一开关晶体管T3的栅极电性连接，所述第二开关晶体管T4的源极与所述第一驱动晶体管T1的栅极、所述第二驱动晶体管T2的栅极以及所述第一开关晶体管T3的漏极电性连接，所述第二开关晶体管T4的漏极与所述第二数据信号端260电性连接。所述第二开关晶体管T4用于根据所述放大器U1的输出端传输的输出信号导通或关断，并在导通时将所述第二数据信号端260输入的第二数据信号传输给所述第一驱动晶体管T1的栅极和所述第二驱动晶体管T2的栅极。
在本申请实施方式中，所述第二开关晶体管T4可为N型晶体管。
请一并参阅图4，其为本申请实施例提供的驱动电路的时序图。如图4所示，当所述第一数据信号端250输入的第一数据信号时，所述第一驱动晶体管T1的栅极和所述第二驱动晶体管T2的栅极输入所述第一数据信号，所述第一驱动晶体管T1或所述第二驱动晶体管T2导通，从而驱动所述发光单元140进行发光，所述存储电容C1开始充电。所述D点电压小于所述参考电压端230输出的参考电压Vref，所述放大器U1的输出端输出低电平信号，所述第一开关晶体管T3导通，将所述第一数据信号端250输入的第一数据信号传输给所述第一驱动晶体管T1的栅极和所述第二驱动晶体管T2的栅极，所述第一驱动晶体管T1或所述第二驱动晶体管T2工作。
请一并参阅图5，其为本申请实施例提供的驱动电路的另一种时序图。具体地，选取如图5所示的时序图中的t1和t2的两个阶段。图5所示的驱动电路的时序图的详细内容将在后续实施例中得以说明。
在t1阶段和t2阶段，当所述第二数据信号端260输入的第二数据信号时，将所述第二数据信号端260输入的第二数据信号传输给所述第一驱动晶体管T1的栅极和所述第二驱动晶体管T2的栅极，所述第一驱动晶体管T1或所述第二驱动晶体管T2导通，从而驱动所述发光单元140进行发光，所述存储电容C1开始充电。当所述D点电压大于所述参考电压端230输出的参考电压Vref，所述放大器U1的输出端输出电平信号，所述第二开关晶体管T4导通，将所述第二数据信号端260输入的第二数据信号传输给所述第一驱动晶体管T1的栅极和所述第二驱动晶体管T2的栅极，所述第一驱动晶体管T1和所述第二驱动晶体管T2以t1和t2为周期交替工作。
具体为，在t1阶段中，当所述第二数据信号端260输入的第二数据信号时，将所述第二数据信号端260输入的第二数据信号传输给所述第一驱动晶体管T1的栅极和所述第二驱动晶体管T2的栅极，所述第一驱动晶体管T1导通，从而驱动所述发光单元140进行发光。
在t2阶段中，当所述第二数据信号端260输入的第二数据信号时，将所述第二数据信号端260输入的第二数据信号传输给所述第一驱动晶体管T1的栅极和所述第二驱动晶体管T2的栅极，所述第二驱动晶体管T2导通，从而驱动所述发光单元140进行发光。
综上所述，所述驱动电路中，所述发光单元140开始工作后，所述存储电容C1开始充电，当所述D点电压小于所述参考电压端230输出的参考电压Vref，所述放大器U1输出低电平信号，所述第一数据输入子电路180导通，将所述第一数据信号端250输入的第一数据信号传输给所述第一驱动晶体管T1的栅极和所述第二驱动晶体管T2的栅极，所述第一驱动晶体管T1或所述第二驱动晶体管T2导通。当所述D点电压大于所述参考电压端230输出的参考电压Vref，所述放大器U1输出高电平信号，所述第二开关晶体管T4导通，将所述第二数据信号端260输入的第二数据信号传输给所述第一驱动晶体管T1的栅极和所述第二驱动晶体管T2的栅极，所述第一驱动晶体管T1或所述第二驱动晶体管T2导通，从而将直流驱动切换成交流驱动，有效提高TFT的显示寿命。
基于相同的构思，本申请还提供一种显示装置，其包括上述的显示面板。其中，所述显示装置包括但不局限于：Micro LED面板、手机、平板电脑、导航仪、显示器等任何具有显示功能的电子设备或者部件，本申请对此不作具体限制。根据本申请的实施例，该显示装置的具体种类不受特别的限制，本领域技术人员可根据应用该显示装置的具体使用要求进行相应地设计，在此不再赘述。
在其中一个实施例中，所述显示装置还包括电源板、高压板、按键控制板等其他必要的部件和组成，本领域技术人员可根据该显示装置的具体类型和实际功能进行相应地补充，在此不再赘述。
本申请中所描述的流程图仅仅为一个实施例，在不偏离本申请的精神的情况下对此图示或者本申请中的步骤可以有多种修改变化。比如，可以不同次序的执行这些步骤，或者可以增加、删除或者修改某些步骤。本领域的一般技术人员可以理解实现上述实施例的全部或部分流程，并依本申请权利要求所作的 等同变化，仍属于本申请所涵盖的范围。
在本说明书的描述中，参考术语“一个实施方式”、“一些实施方式”、“示意性实施方式”、“示例”、“具体示例”或“一些示例”等的描述意指结合所述实施方式或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施方式或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施方式或示例。而且，描述的具体特征、结构、材料或者特点可在任何的一个或多个实施方式或示例中以合适的方式结合。
应当理解的是，本申请的应用不限于上述的举例，对本领域普通技术人员来说，可以根据上述说明加以改进或变换，所有这些改进和变换都应属于本申请所附权利要求的保护范围。本领域的一般技术人员可以理解实现上述实施例的全部或部分方法，并依本申请权利要求所作的等同变化，仍属于申请所涵盖的范围。

Claims (20)

  1. 一种驱动电路，其中，包括：
    第一发光控制子电路和第二发光控制子电路，均与发光单元、储能元件、运算子电路、第一数据输入子电路、第二数据输入子电路以及第一电源电压端电性连接，所述第一发光控制子电路和所述第二发光控制子电路均用于驱动所述发光单元发光；
    所述发光单元的阳极与所述第一发光控制子电路、所述第二发光控制子电路、所述储能元件及所述运算子电路电性连接，所述发光单元的阴极与第二电源电压端电性连接，用于发光；
    所述储能元件，与所述运算子电路电性连接，用于存储电能；
    所述运算子电路，与所述第一数据输入子电路、所述第二数据输入子电路以及参考电压端电性连接，用于将所述储能元件与所述运算子电路电性连接点的电压与所述参考电压端接收的参考电压进行比较得到输出信号，并将所述输出信号传输给所述第一数据输入子电路以及所述第二数据输入子电路；
    所述第一数据输入子电路，与所述第二数据输入子电路以及第一数据信号端电性连接，用于根据所述运算子电路传输的输出信号导通或关断，并在导通时将所述第一数据信号端输入的第一数据信号传输给所述第一发光控制子电路和所述第二发光控制子电路，用于驱动所述发光单元发光；
    所述第二数据输入子电路，与第二数据信号端电性连接，用于根据所述运算子电路传输的输出信号导通或关断，并在导通时将所述第二数据信号端输入的第二数据信号传输给所述第一发光控制子电路和所述第二发光控制子电路，用于驱动所述发光单元发光。
  2. 根据权利要求1所述的驱动电路，其中，所述第一发光控制子电路包括第一驱动晶体管，所述第一驱动晶体管的栅极与所述第二发光控制子电路、所述第一数据输入子电路以及所述第二数据输入子电路电性连接，所述第一驱动晶体管的漏极与所述第二发光控制子电路以及所述第一电源电压端电性连接，所述第一驱动晶体管的源极与所述第二发光控制子电路、所述发光单元的阳极、所述储能元件以及所述运算子电路电性连接，所述第一驱动晶体管用于驱动所述发光单元进行发光。
  3. 根据权利要求2所述的驱动电路，其中，所述第二发光控制子电路包括第二驱动晶体管，所述第二驱动晶体管的栅极与所述第一驱动晶体管的栅极、 所述第一数据输入子电路以及所述第二数据输入子电路电性连接，所述第二驱动晶体管的源极与所述第一驱动晶体管的漏极以及所述第一电源电压端电性连接，所述第二驱动晶体管的漏极与所述第一驱动晶体管的源极、所述发光单元的阳极、所述储能元件以及所述运算子电路电性连接，所述第二驱动晶体管用于驱动所述发光单元进行发光。
  4. 根据权利要求3所述的驱动电路，其中，所述储能元件包括存储电容，所述存储电容的第一端与所述第一驱动晶体管的源极、所述发光单元的阳极、所述第二驱动晶体管的漏极以及所述运算子电路电性连接，所述存储电容的第二端接地，用于充电并存储电能。
  5. 根据权利要求4所述的驱动电路，其中，所述运算子电路包括放大器，所述放大器的同相输入端电性连接于所述第二驱动晶体管的漏极与所述存储电容的第一端之间，用于接收所述储能元件与所述运算子电路电性连接点的电压，所述放大器的反相输入端用于输入所述参考电压端接收的参考电压，所述放大器的输出端与所述第一数据输入子电路以及所述第二数据输入子电路电性连接，所述放大器用于将所述储能元件与所述运算子电路电性连接点的电压与所述参考电压端接收的参考电压进行比较得到相应的输出信号，并将所述输出信号传输给所述第一数据输入子电路以及所述第二数据输入子电路。
  6. 根据权利要求5所述的驱动电路，其中，所述第一数据输入子电路包括第一开关晶体管，所述第一开关晶体管的栅极与所述放大器的输出端以及所述第二数据输入子电路电性连接，所述第一开关晶体管的源极与所述第一数据信号端电性连接，所述第一开关晶体管的漏极与所述第一驱动晶体管的栅极、所述第二驱动晶体管的栅极以及所述第二数据输入子电路电性连接，所述第一开关晶体管用于根据所述放大器的输出端传输的输出信号导通或关断，并在导通时将所述第一数据信号端输入的第一数据信号传输给所述第一驱动晶体管的栅极和所述第二驱动晶体管的栅极。
  7. 根据权利要求6所述的驱动电路，其中，所述第二数据输入子电路包括第二开关晶体管，所述第二开关晶体管的栅极与所述放大器的输出端以及所述第一开关晶体管的栅极电性连接，所述第二开关晶体管的源极与所述第一驱动晶体管的栅极、所述第二驱动晶体管的栅极以及所述第一开关晶体管的漏极电性连接，所述第二开关晶体管的漏极与所述第二数据信号端电性连接，所述第二开关晶体管用于根据所述放大器的输出端传输的输出信号导通或关断，并在 导通时将所述第二数据信号端输入的第二数据信号传输给所述第一驱动晶体管的栅极和所述第二驱动晶体管的栅极。
  8. 根据权利要求1所述的驱动电路，其中，所述第一数据信号为直流数据信号，所述第二数据信号为交流数据信号。
  9. 一种显示面板，包括驱动电路，所述驱动电路用于显示图像，其中，所述驱动电路包括：
    第一发光控制子电路和第二发光控制子电路，均与发光单元、储能元件、运算子电路、第一数据输入子电路、第二数据输入子电路以及第一电源电压端电性连接，所述第一发光控制子电路和所述第二发光控制子电路均用于驱动所述发光单元发光；
    所述发光单元的阳极与所述第一发光控制子电路、所述第二发光控制子电路、所述储能元件及所述运算子电路电性连接，所述发光单元的阴极与第二电源电压端电性连接，用于发光；
    所述储能元件，与所述运算子电路电性连接，用于存储电能；
    所述运算子电路，与所述第一数据输入子电路、所述第二数据输入子电路以及参考电压端电性连接，用于将所述储能元件与所述运算子电路电性连接点的电压与所述参考电压端接收的参考电压进行比较得到输出信号，并将所述输出信号传输给所述第一数据输入子电路以及所述第二数据输入子电路；
    所述第一数据输入子电路，与所述第二数据输入子电路以及第一数据信号端电性连接，用于根据所述运算子电路传输的输出信号导通或关断，并在导通时将所述第一数据信号端输入的第一数据信号传输给所述第一发光控制子电路和所述第二发光控制子电路，用于驱动所述发光单元发光；
    所述第二数据输入子电路，与第二数据信号端电性连接，用于根据所述运算子电路传输的输出信号导通或关断，并在导通时将所述第二数据信号端输入的第二数据信号传输给所述第一发光控制子电路和所述第二发光控制子电路，用于驱动所述发光单元发光。
  10. 根据权利要求9所述的显示面板，其中，所述第一发光控制子电路包括第一驱动晶体管，所述第一驱动晶体管的栅极与所述第二发光控制子电路、所述第一数据输入子电路以及所述第二数据输入子电路电性连接，所述第一驱动晶体管的漏极与所述第二发光控制子电路以及所述第一电源电压端电性连接，所述第一驱动晶体管的源极与所述第二发光控制子电路、所述发光单元的阳极、 所述储能元件以及所述运算子电路电性连接，所述第一驱动晶体管用于驱动所述发光单元进行发光；
    所述第二发光控制子电路包括第二驱动晶体管，所述第二驱动晶体管的栅极与所述第一驱动晶体管的栅极、所述第一数据输入子电路以及所述第二数据输入子电路电性连接，所述第二驱动晶体管的源极与所述第一驱动晶体管的漏极以及所述第一电源电压端电性连接，所述第二驱动晶体管的漏极与所述第一驱动晶体管的源极、所述发光单元的阳极、所述储能元件以及所述运算子电路电性连接，所述第二驱动晶体管用于驱动所述发光单元进行发光。
  11. 根据权利要求10所述的显示面板，其中，所述储能元件包括存储电容，所述存储电容的第一端与所述第一驱动晶体管的源极、所述发光单元的阳极、所述第二驱动晶体管的漏极以及所述运算子电路电性连接，所述存储电容的第二端接地，用于充电并存储电能。
  12. 根据权利要求11所述的显示面板，其中，所述运算子电路包括放大器，所述放大器的同相输入端电性连接于所述第二驱动晶体管的漏极与所述存储电容的第一端之间，用于接收所述储能元件与所述运算子电路电性连接点的电压，所述放大器的反相输入端用于输入所述参考电压端接收的参考电压，所述放大器的输出端与所述第一数据输入子电路以及所述第二数据输入子电路电性连接，所述放大器用于将所述储能元件与所述运算子电路电性连接点的电压与所述参考电压端接收的参考电压进行比较得到相应的输出信号，并将所述输出信号传输给所述第一数据输入子电路以及所述第二数据输入子电路。
  13. 根据权利要求12所述的显示面板，其中，所述第一数据输入子电路包括第一开关晶体管，所述第一开关晶体管的栅极与所述放大器的输出端以及所述第二数据输入子电路电性连接，所述第一开关晶体管的源极与所述第一数据信号端电性连接，所述第一开关晶体管的漏极与所述第一驱动晶体管的栅极、所述第二驱动晶体管的栅极以及所述第二数据输入子电路电性连接，所述第一开关晶体管用于根据所述放大器的输出端传输的输出信号导通或关断，并在导通时将所述第一数据信号端输入的第一数据信号传输给所述第一驱动晶体管的栅极和所述第二驱动晶体管的栅极。
  14. 根据权利要求13所述的显示面板，其中，所述第二数据输入子电路包括第二开关晶体管，所述第二开关晶体管的栅极与所述放大器的输出端以及所述第一开关晶体管的栅极电性连接，所述第二开关晶体管的源极与所述第一驱 动晶体管的栅极、所述第二驱动晶体管的栅极以及所述第一开关晶体管的漏极电性连接，所述第二开关晶体管的漏极与所述第二数据信号端电性连接，所述第二开关晶体管用于根据所述放大器的输出端传输的输出信号导通或关断，并在导通时将所述第二数据信号端输入的第二数据信号传输给所述第一驱动晶体管的栅极和所述第二驱动晶体管的栅极。
  15. 一种显示装置，包括显示面板，所述显示面板包括驱动电路，所述驱动电路用于显示图像，其中，所述驱动电路包括：
    第一发光控制子电路和第二发光控制子电路，均与发光单元、储能元件、运算子电路、第一数据输入子电路、第二数据输入子电路以及第一电源电压端电性连接，所述第一发光控制子电路和所述第二发光控制子电路均用于驱动所述发光单元发光；
    所述发光单元的阳极与所述第一发光控制子电路、所述第二发光控制子电路、所述储能元件及所述运算子电路电性连接，所述发光单元的阴极与第二电源电压端电性连接，用于发光；
    所述储能元件，与所述运算子电路电性连接，用于存储电能；
    所述运算子电路，与所述第一数据输入子电路、所述第二数据输入子电路以及参考电压端电性连接，用于将所述储能元件与所述运算子电路电性连接点的电压与所述参考电压端接收的参考电压进行比较得到输出信号，并将所述输出信号传输给所述第一数据输入子电路以及所述第二数据输入子电路；
    所述第一数据输入子电路，与所述第二数据输入子电路以及第一数据信号端电性连接，用于根据所述运算子电路传输的输出信号导通或关断，并在导通时将所述第一数据信号端输入的第一数据信号传输给所述第一发光控制子电路和所述第二发光控制子电路，用于驱动所述发光单元发光；
    所述第二数据输入子电路，与第二数据信号端电性连接，用于根据所述运算子电路传输的输出信号导通或关断，并在导通时将所述第二数据信号端输入的第二数据信号传输给所述第一发光控制子电路和所述第二发光控制子电路，用于驱动所述发光单元发光。
  16. 根据权利要求15所述的显示装置，其中，所述第一发光控制子电路包括第一驱动晶体管，所述第一驱动晶体管的栅极与所述第二发光控制子电路、所述第一数据输入子电路以及所述第二数据输入子电路电性连接，所述第一驱动晶体管的漏极与所述第二发光控制子电路以及所述第一电源电压端电性连接， 所述第一驱动晶体管的源极与所述第二发光控制子电路、所述发光单元的阳极、所述储能元件以及所述运算子电路电性连接，所述第一驱动晶体管用于驱动所述发光单元进行发光；
    所述第二发光控制子电路包括第二驱动晶体管，所述第二驱动晶体管的栅极与所述第一驱动晶体管的栅极、所述第一数据输入子电路以及所述第二数据输入子电路电性连接，所述第二驱动晶体管的源极与所述第一驱动晶体管的漏极以及所述第一电源电压端电性连接，所述第二驱动晶体管的漏极与所述第一驱动晶体管的源极、所述发光单元的阳极、所述储能元件以及所述运算子电路电性连接，所述第二驱动晶体管用于驱动所述发光单元进行发光。
  17. 根据权利要求16所述的显示装置，其中，所述储能元件包括存储电容，所述存储电容的第一端与所述第一驱动晶体管的源极、所述发光单元的阳极、所述第二驱动晶体管的漏极以及所述运算子电路电性连接，所述存储电容的第二端接地，用于充电并存储电能。
  18. 根据权利要求17所述的显示装置，其中，所述运算子电路包括放大器，所述放大器的同相输入端电性连接于所述第二驱动晶体管的漏极与所述存储电容的第一端之间，用于接收所述储能元件与所述运算子电路电性连接点的电压，所述放大器的反相输入端用于输入所述参考电压端接收的参考电压，所述放大器的输出端与所述第一数据输入子电路以及所述第二数据输入子电路电性连接，所述放大器用于将所述储能元件与所述运算子电路电性连接点的电压与所述参考电压端接收的参考电压进行比较得到相应的输出信号，并将所述输出信号传输给所述第一数据输入子电路以及所述第二数据输入子电路。
  19. 根据权利要求18所述的显示装置，其中，所述第一数据输入子电路包括第一开关晶体管，所述第一开关晶体管的栅极与所述放大器的输出端以及所述第二数据输入子电路电性连接，所述第一开关晶体管的源极与所述第一数据信号端电性连接，所述第一开关晶体管的漏极与所述第一驱动晶体管的栅极、所述第二驱动晶体管的栅极以及所述第二数据输入子电路电性连接，所述第一开关晶体管用于根据所述放大器的输出端传输的输出信号导通或关断，并在导通时将所述第一数据信号端输入的第一数据信号传输给所述第一驱动晶体管的栅极和所述第二驱动晶体管的栅极。
  20. 根据权利要求19所述的显示装置，其中，所述第二数据输入子电路包括第二开关晶体管，所述第二开关晶体管的栅极与所述放大器的输出端以及所 述第一开关晶体管的栅极电性连接，所述第二开关晶体管的源极与所述第一驱动晶体管的栅极、所述第二驱动晶体管的栅极以及所述第一开关晶体管的漏极电性连接，所述第二开关晶体管的漏极与所述第二数据信号端电性连接，所述第二开关晶体管用于根据所述放大器的输出端传输的输出信号导通或关断，并在导通时将所述第二数据信号端输入的第二数据信号传输给所述第一驱动晶体管的栅极和所述第二驱动晶体管的栅极。
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