WO2020093447A1 - 一种显示装置的驱动电路 - Google Patents

一种显示装置的驱动电路 Download PDF

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Publication number
WO2020093447A1
WO2020093447A1 PCT/CN2018/116593 CN2018116593W WO2020093447A1 WO 2020093447 A1 WO2020093447 A1 WO 2020093447A1 CN 2018116593 W CN2018116593 W CN 2018116593W WO 2020093447 A1 WO2020093447 A1 WO 2020093447A1
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WIPO (PCT)
Prior art keywords
signal
switch
switching module
display device
input
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Ceased
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PCT/CN2018/116593
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English (en)
French (fr)
Inventor
黄笑宇
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HKC Co Ltd
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HKC Co Ltd
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Priority to US16/334,176 priority Critical patent/US11210974B2/en
Publication of WO2020093447A1 publication Critical patent/WO2020093447A1/zh
Anticipated expiration legal-status Critical
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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
    • G09G3/36—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 using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3648—Control of matrices with row and column drivers 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
    • G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD 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
    • 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
    • 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
    • G09G3/36—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 using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3674—Details of drivers for scan electrodes
    • G09G3/3677—Details of drivers for scan electrodes suitable for active matrices only
    • 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
    • G09G2310/0286—Details of a shift registers 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
    • 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
    • G09G2310/0297—Special arrangements with multiplexing or demultiplexing of display data in the drivers for data electrodes, in a pre-processing circuitry delivering display data to said drivers or in the matrix panel, e.g. multiplexing plural data signals to one D/A converter or demultiplexing the D/A converter output to multiple columns
    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C19/00—Digital stores in which the information is moved stepwise, e.g. shift registers
    • G11C19/28—Digital stores in which the information is moved stepwise, e.g. shift registers using semiconductor elements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/027—Generators characterised by the type of circuit or by the means used for producing pulses by the use of logic circuits, with internal or external positive feedback
    • H03K3/037—Bistable circuits

Definitions

  • the present application relates to the field of display technology of a display device, and in particular to a driving circuit of a display device.
  • Thin film transistor liquid crystal display is one of the main varieties of flat panel displays, and has become an important display platform in modern networks and video products.
  • the main driving principle the system motherboard will color (such as red / green / blue, (Red / Green / Blue, R / G / B)) compressed signal, control signal and power through the wire and printed circuit board (Printed Circuit Board, PCB ) Is connected to the connector on the), the data is processed by the Timing Controller (TCON) IC on the printed circuit board, and then through the printed circuit board, through the source driver circuit (Source-Chipon Film, S-COF) and the grid
  • the gate drive circuit Gate-Chipon Film, G-COF
  • G-COF Gate-Chipon Film, G-COF
  • the gate turn-on voltage is a fixed value.
  • the existing scheme needs to add a switching circuit on the basis of the driving circuit. This scheme makes the production cost higher and the space occupied by the panel becomes larger.
  • the purpose of the present application is to provide a driving circuit for a display device, so that the display panel can increase the gate turn-on voltage during the production process, perform quality testing, and improve product quality to meet customer needs.
  • a driving circuit for a display device includes: a switching module, including a control line, a first input line, a second input line, and an output line; a control unit, an output end of the control unit is connected to the switching module Control circuit; a first switch, the control terminal of the first switch is connected to the control circuit of the switching module, the first end of the first switch is connected to the first input circuit of the switching module; the voltage regulation module, connected Between the second end of the first switch and the second input line of the switching module.
  • the first input line of the switching module is electrically coupled to the first signal, and the control unit provides a control signal.
  • the switching module performs circuit switching so that the switching module The output line is in electrical communication with the first input terminal line of the switching module, and the output signal of the output line of the switching module is equal to or close to the first signal;
  • the control signal is the second potential, the The switching module performs circuit switching so that the output line of the switching module is electrically connected to the second input line of the switching module, the first switch is opened, and the voltage regulation module adjusts the first signal to the second Signal, and output the second signal to the second input line of the switching module, and the output signal of the output line of the switching module is equal to or close to the second signal.
  • the switching circuit includes: a second switch, a first end of the second switch is a first input line of the switching module, and a second end of the second switch is connected to an output line of the switching module; A third switch, the first end of the third switch is the second input line of the switching module, and the second end of the third switch is connected to the output line of the switching module.
  • the control ends of the second switch and the third switch are opposite in polarity and connected to the control circuit of the switching module.
  • control terminals of the first switch and the third switch have the same polarity.
  • control unit is a trigger
  • the trigger includes a digital signal input terminal, a trigger signal input terminal and a signal output terminal
  • the signal output terminal of the trigger is connected to the control circuit of the switching module, the digital signal
  • the input terminal receives an input signal
  • the trigger signal input terminal receives a pulse signal.
  • the digital signal input end assigns the input signal to the signal output end of the trigger, and the signal output end of the trigger outputs the input signal
  • the signal output terminal of the trigger has no output.
  • the trigger is a D-type trigger.
  • the first switch and the third switch are P-type field effect transistors, and the second switch are N-type field effect transistors.
  • the first potential is a high potential
  • the second potential is a low potential
  • the first switch and the third switch are N-type field effect transistors, and the second switch are P-type field effect transistors.
  • the first potential is a low potential
  • the second potential is a high potential
  • both the first signal and the second signal are voltage signals, and the voltage of the first signal is higher than the voltage of the second signal.
  • a driving circuit of a display device including: a trigger, including a digital signal input terminal, a trigger signal input terminal and a signal output terminal, the digital signal input terminal receiving an input signal, the trigger signal input
  • the terminal receives the pulse signal; the first switch, the first end of the first switch is connected to the first node, the control end of the first switch is connected to the signal output terminal; the second switch, the first of the second switch The terminal is connected to the first node, the control terminal of the second switch is connected to the signal output terminal, the second terminal of the second switch is connected to the second node; the third switch is controlled by the third switch Is connected to the signal output terminal, the second terminal of the third switch is connected to the second node; and a voltage regulation module, the input terminal of the voltage regulation module is connected to the second terminal of the first switch, the The output terminal of the voltage regulation module is connected to the first terminal of the third switch.
  • the first node obtains a first signal
  • the pulse signal is at a high potential
  • the signal output terminal of the trigger outputs the input signal
  • the second switch is opened, The first switch and the third switch are closed, the first signal is transmitted to the second node through the second switch; when the input signal is at a low potential, the first switch and the third switch Three switches are turned on, the second switch is turned off, the first signal is adjusted by the voltage regulation module to a second signal, and the second signal is transmitted to the second node through the third switch;
  • the pulse signal is at a low potential
  • the signal output terminal of the trigger has no output.
  • the trigger is a D-type trigger.
  • the first switch and the third switch are P-type field effect transistors, and the second switch are N-type field effect transistors.
  • both the first signal and the second signal are voltage signals, and the voltage of the first signal is higher than the voltage of the second signal.
  • the voltage regulation module includes: a first resistor, the first end of the first resistor is connected to the second end of the first switch, and the second end of the first resistor is connected to the first end of the third switch Second resistor, the first end of the second resistor is connected to the second end of the first resistor, and the second end of the second resistor is grounded.
  • This application can increase the gate turn-on voltage and perform aging tests on the display panel without significantly changing the existing production process, which can improve product quality and reduce production costs.
  • FIG. 1 is a schematic structural diagram of an exemplary display device
  • FIG. 2 is a schematic diagram of a driving circuit of a display device according to an embodiment of the application.
  • FIG. 3 is a schematic diagram of a driving circuit of a display device according to an embodiment of the application.
  • FIG. 4 is a schematic diagram of a driving circuit of a display device according to an embodiment of the application.
  • FIG. 5 is a schematic diagram of a driving circuit of a display device according to an embodiment of the application.
  • FIG. 6 is a schematic diagram of a driving circuit of a display device according to an embodiment of the application.
  • FIG. 1 is a schematic structural diagram of an exemplary display device.
  • a display device includes: a control board 100 including: a timing control unit 101 (Timing Controller, TCON) 101; a printed circuit board 103 and a flexible flat cable (Flexible Flat Cable) between the control board and the control board , FFC) 102; the source drive circuit 104 and the gate drive circuit 105 are connected to the data line and the scan line in the display area 106, in some embodiments, the gate drive circuit 105 and the source drive circuit 104 include But it is not limited to the form of flip chip.
  • TCON Timing Controller
  • FFC Flexible Flat Cable
  • the main driving methods of the display device include: the system motherboard provides colors (such as red / green / blue, (Red / Green / Blue, R / G / B)), compressed signals, control signals, and power transmission to Control board 100.
  • the timing unit 101 on the control board 100 processes these signals, together with the power processed by the driving circuit, it is transmitted to the source driving circuit 104 and the gate driving circuit 105 of the printed circuit board 103 through the flexible flat cable 102,
  • the source driving circuit 104 and the gate driving circuit 105 transmit the necessary data and power to the display area 106 through the gate line and the source line, so that the display can obtain the power and signal required for displaying the picture.
  • a driving circuit of a display device includes: a switching module 110, including a control circuit 112, a first input circuit 111, The second input line 113 and the output line; the control unit 200, the output end of the control unit 200 is connected to the control line 112 of the switching module 110; the first switch 201, the control end of the first switch 201 is connected to the switching In the control line 112 of the module 110, the first end of the first switch 201 is connected to the first input line 111 of the switching module 110; the voltage regulation module 202 is connected to the second end of the first switch 201 and the Between the second input lines 113 of the switching module 110; wherein, the first input line 111 of the switching module 110 is electrically coupled to the first signal S1, the control unit 200 provides a control signal, the control signal is the first At potential, the switching module 110 performs circuit switching so that the output line of the switching module 110 and the first
  • the output line of the switching module 110 The output signal 0 is equal to or close to the first signal S1; when the control signal is the second potential, the switching module 110 performs circuit switching so that the output line of the switching module 110 and the second of the switching module 110
  • the input line 113 is electrically connected, the first switch 201 is open, the voltage regulation module 202 adjusts the first signal S1 to a second signal S2, and outputs the second signal S2 to the switching module 110
  • the output signal 0 of the output line of the switching module 110 is equal to or close to the second signal S2.
  • the control unit is a D-type flip-flop 2000, which includes a digital signal input terminal D, a trigger signal input terminal C and a signal
  • the output terminal Q, the signal output terminal of the D-type flip-flop 200 is connected to the control circuit 112 of the switching module 110, the digital signal input terminal D receives the input signal A, and the trigger signal input terminal C receives the pulse signal B,
  • the digital signal input terminal D assigns the input signal A to the signal output terminal Q of the D-type flip-flop 2000, and the signal output of the D-type flip-flop 200
  • the terminal Q outputs the input signal A.
  • the pulse signal B is at the fourth potential
  • the signal output terminal Q of the D-type flip-flop 2000 has no output.
  • the switching module 110 includes: a second switch, and the second switch is an N-type field effect transistor M2.
  • the first end 1111 of the N-type field effect transistor M2 is the first input line 111 of the switching module 110, and the second end 1112 of the N-type field effect transistor M2 is connected to the output line of the switching module 110;
  • Switch, the third switch is a P-type field effect transistor M3, the first end 1211 of the P-type field effect transistor M3 is the second input line 113 of the switching module 110, the second of the P-type field effect transistor M3
  • the terminal 1212 is connected to the output line of the switching module 110;
  • the first switch 201 is a P-type field effect transistor M1, the first potential is a low potential, and the second potential is a high potential.
  • the first switch 201 is an N-type field effect transistor
  • the second switch 1101 is a P-type field effect transistor
  • the third switch 1102 is a P-type field effect transistor.
  • the first potential is a high potential
  • the second potential is a low potential.
  • both the first signal S1 and the second signal S2 are voltage signals, and the voltage of the first signal S1 is higher than the voltage of the second signal S2.
  • a driving circuit of a display device includes: a D-type flip-flop 2000, including a digital signal input terminal D, a trigger signal Input terminal C and signal output terminal Q, the digital signal input terminal D receives the input signal A, the trigger signal input terminal C receives the pulse signal B; P-type field effect transistor M1, the P-type field effect transistor M1 One end 2111 is connected to the first node, the control end of the P-type field effect transistor M1 is connected to the signal output terminal Q; an N-type field effect transistor M2, the first end 1111 of the N-type field effect transistor M2 is connected to the The first node, the control terminal of the N-type field effect transistor M2 is connected to the signal output terminal Q, the second terminal 1112 of the N-type field effect transistor M2 is connected to the second node; The control terminal of the P-type field effect transistor M3 is connected to the signal output terminal Q, and
  • the first node obtains the first signal S1, the pulse signal B is at a high potential, the signal output terminal Q of the D-type flip-flop 2000 outputs the input signal A, and the input signal A is high
  • the N-type field effect transistor M2 is turned on, the P-type field effect transistor M1 and the P-type field effect transistor M3 are turned off, and the first signal is transmitted to the N-type field effect transistor M2
  • O S1 at this time; when the input signal A is at a low potential, the P-type field effect transistor M1 and the P-type field effect transistor M3 are turned on, and the N-type field effect transistor M2 is turned off.
  • the pulse signal B is at a low potential
  • the signal output terminal Q of the D-type flip-flop 2000 has no output.
  • the voltage regulation module 202 includes: a first resistor R1, and a first end of the first resistor R1 is connected to the The second end 2112 of the P-type field effect transistor M1, the second end of the first resistor R1 is connected to the first end 1211 of the P-type field effect transistor M3; the second resistor R2, the first end of the second resistor R2 The terminal is connected to the second terminal of the first resistor R1, and the second terminal of the second resistor R2 is grounded.
  • a third resistor R3, a first end of the third resistor R3 is connected to the signal output terminal Q of the D-type flip-flop 200, a second end of the third resistor R3 is grounded; a fourth resistor R4, the fourth resistor R4 The first terminal is connected to the digital signal input terminal D, and the second terminal of the fourth resistor R4 is grounded; the D-type flip-flop 2000 is triggered when a rising edge occurs.
  • This application can increase the gate turn-on voltage and perform aging tests on the display panel without significantly changing the existing production process, which can improve product quality and reduce production costs.
  • the display panel of the present application may be, for example, a liquid crystal display panel, but it is not limited thereto, it may also be an OLED display panel, a W-OLED display panel, a QLED display panel, a plasma display panel, a curved type Display panel or other types of display panels.

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  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
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  • Crystallography & Structural Chemistry (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

一种显示装置的驱动电路，包括：切换模块（110），控制单元（200），第一开关（201），调压模块（202）。切换模块（110）的第一输入线路（111）接收到第一信号（S1），控制单元（200）的控制信号为第一电位时，切换模块（110）作电路切换使切换模块（110）的输出线路与切换模块（110）的第一输入线路（111）为电性连通，切换模块（110）的输出线路的输出信号（O）等同或相近于第一信号（S1）；控制信号为第二电位时，切换模块（110）作电路切换使切换模块（110）的输出线路与切换模块（110）的第二输入线路（113）为电性连通，第一开关（201）打开，调压模块（202）调整第一信号（S1）为第二信号（S2），并输出第二信号（S2）至切换模块（110）的第二输入线路（113），切换模块（110）的输出线路的输出信号（O）等同或相近于第二信号（S2）。

Description

一种显示装置的驱动电路 技术领域
本申请涉及显示装置的显示技术领域，特别是涉及一种显示装置的驱动电路。
背景技术
薄膜晶体管液晶显示器(Thin film transistor liquid crystal display，TFT-LCD)是目前平板显示的主要品种之一，已经成为了现代网络，视讯产品中重要的显示平台。主要驱动原理，系统主板将颜色(例红色/绿色/蓝色，(Red/Green/Blue，R/G/B))压缩信号、控制信号以及电源通过线材跟印刷电路板(Printed Circuit Board，PCB)上的连接器相连接，数据通过印刷电路板上的时序控制器(Tinming Controlle，TCON)IC处理后，经印刷电路板，通过源级驱动电路(Source-Chipon Film，S-COF)和栅极驱动电路(Gate-Chipon Film，G-COF)与显示区域连接，从而使得显示器获得呈现画面需求的电源、信号。
然而，栅极开启电压为固定值，为了考察产品的品质，需要在显示面板在生产过程中，将栅极开启电压提高，进行品质测试。而现有的方案，为了达到这个目的，需要在驱动电路的基础上加入一个切换电路，这种方案使得生产成本变高且占用面板的空间变大。
发明内容
为了解决上述技术问题，本申请的目的在于，提供一种显示装置的驱动电路，使显示面板在生产过程中，将栅极开启电压提高，进行品质测试，提升产品的品质，满足客户的需求。
本申请的目的及解决其技术问题是采用以下技术方案来实现的。依据本申请提出的一种显示装置的驱动电路，包括：切换模块，包括控制线路、第一输入线路、第二输入线路与输出线路；控制单元，所述控制单元的输出端连接所述切换模块的控制线路；第一开关，所述第一开关的控制端连接所述切换模块的控制线路，所述第一开关的第一端连接所述切换模块的第一输入线路；调压模块，连接于所述第一开关的第二端与所述切换模块的第二输入线路之间。
其中，所述切换模块的第一输入线路电性耦接第一信号，所述控制单元提供控制信号，所述控制信号为第一电位时，所述切换模块作电路切换使所述切换模块的输出线路与所述切换模块的第一输入端线路为电性连通，所述切换模块的输出线路的输出信号等同或相近于所述第一信号；所述控制信号为第二电位时，所述切换模块作电路切换使所述切换模块的输出线路与所述切换模块的第二输入线路为电性连通，所述第一开关为打开，所述调压模块调整所述第一信号为第二信号，并输出所述第二信号至所述切换模块的第二输入线路，所述切换模块的输出线路的输出信号等同或相近于所述第二信号。
其中，所述切换电路包括：第二开关，所述第二开关的第一端为所述切换模块的第一输入线路，所述第二开关的第二端连接所述切换模块的输出线路；第三开关，所述第三开关的第一端为所述切换模块的第二输入线路，所述第三开关的第二端连接所述切换模块的输出线路。其中，所述第二开关与所述第三开关的控制端为极性相反且连接所述切换模块的控制线路。
其中，所述第一开关与所述第三开关的控制端为极性相同。
其中，所述控制单元为触发器，所述触发器包括数字信号输入端、触发信号输入端与信号输出端，所述触发器的信号输出端连接所述切换模块的控制线路，所述数字信号输入端接收输入信号，所述触发信号输入端接收脉冲信号。
其中，当所述脉冲信号为第三电位时，所述数字信号输入端把所述输入信号赋值给所述触发器的信号输出端，所述触发器的信号输出端输出所述输入信号，
其中，当所述脉冲信号为第四电位时，所述触发器的信号输出端无输出。
其中，所述触发器为D型触发器。
其中，所述第一开关与所述第三开关为P型场效晶体管，所述第二开关为N型场效晶体管。
其中，所述第一电位为高电位，所述第二电位为低电位。
其中，所述第一开关与所述第三开关为N型场效晶体管，所述第二开关为P型场效晶体管。
其中，所述第一电位为低电位，所述第二电位为高电位。
其中，所述第一信号与所述第二信号皆为电压信号，所述第一信号的电压高于所述第二信号的电压。
本申请的目的及解决其技术问题还可采用以下技术措施进一步实现。
本申请的另一目的为一种显示装置的驱动电路，包括：触发器，包括数字信号输入端、触发信号输入端与信号输出端，所述数字信号输入端接收输入信号，所述触发信号输入端接收脉冲信号；第一开关，所述第一开关的第一端连接第一节点，所述第一开关的控制端连接所述信号输出端；第二开关，所述第二开关的第一端连接所述第一节点，所述第二开关的控制端连接所述信号输出端，所述第二开关的第二端连接所述第二节点；第三开关，所述第三开关的控制端连接所述信号输出端，所述第三开关的第二端连接所述第二节点；以及调压模块，所述调压模块的输入端连接所述第一开关的第二端，所述调压模块的输出端连接所述第三开关的第一端。
其中，所述第一节点取得第一信号，所述脉冲信号为高电位，所述触发器的信号输出端输出所述输入信号，所述输入信号为高电位时，所述第二开关打开，所述第一开关与第三开关关闭，所述第一信号通过所述第二开关而被传输至所述第二节点；所述输入信号为低电位时，所述第一开关与所述第三开关打开，所述第二开关关闭，所述第一信号为所述调压模块调整为第二信号，所述第二 信号通过所述第三开关而被传输至所述第二节点；当所述脉冲信号为低电位时，所述触发器的信号输出端无输出。
其中，所述触发器为D型触发器。
其中，所述第一开关与所述第三开关为P型场效晶体管，所述第二开关为N型场效晶体管。
其中，所述第一信号与所述第二信号皆为电压信号，所述第一信号的电压高于所述第二信号的电压。
其中，所述调压模块，包括：第一电阻，所述第一电阻第一端连接所述第一开关的第二端，所述第一电阻第二端连接所述第三开关的第一端；第二电阻，所述第二电阻的第一端连接所述第一电阻的第二端，所述第二电阻的第二端接地。
本申请可以在不大幅改变现有生产流程的前提下，提升栅极开启电压，对显示面板进行老化测试，可以提升产品品质并降低生产成本。
附图说明
为了更清楚地说明本申请实施例技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，对于本领域普通技术人员来讲，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为范例性的显示装置的架构示意图；
图2为本申请一实施例的显示装置的驱动电路示意图；
图3为本申请一实施例的显示装置的驱动电路示意图；
图4为本申请一实施例的显示装置的驱动电路示意图；
图5为本申请一实施例的显示装置的驱动电路示意图；
图6为本申请一实施例的显示装置的驱动电路示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
以下各实施例的说明是参考附加的图式，用以例示本申请可用以实施的特定实施例。本申请所提到的方向用语，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，使用的方向用语是用以说明及理解本申请，而非用以限制本申请。
附图和说明被认为在本质上是示出性的，而不是限制性的。在图中，结构相似的单元是以相同 标号表示。另外，为了理解和便于描述，附图中示出的每个组件的尺寸和厚度是任意示出的，但是本申请不限于此。
在附图中，为了清晰起见，夸大了层、膜、面板、区域等的厚度。在附图中，为了理解和便于描述，夸大了一些层和区域的厚度。将理解的是，当例如层、膜、区域或基底的组件被称作“在”另一组件“上”时，所述组件可以直接在所述另一组件上，或者也可以存在中间组件。
另外，在说明书中，除非明确地描述为相反的，否则词语“包括”将被理解为意指包括所述组件，但是不排除任何其它组件。此外，在说明书中，“在……上”意指位于目标组件上方或者下方，而不意指必须位于基于重力方向的顶部上。
为更进一步阐述本申请为达成预定发明目的所采取的技术手段及功效，以下结合附图及具体的实施例，对依据本申请提出的一种新型的栅极开启电压驱动架构，其具体实施方式、结构、特征及其功效，详细说明如后。
图1为范例性的显示装置的架构示意图。一种显示装置，包括：控制板100，所述控制板100包括：时序控制单元101(Timing Controller，TCON)101；印刷电路板103，与所述控制板之间通过柔性扁平电缆(Flexible Flat Cable，FFC)102相连接；源极驱动电路104与栅极驱动电路105分别与显示区106内的数据线及扫描线连接，在一些实施例中，栅极驱动电路105及源极驱动电路104包括但不限制为覆晶薄膜形式。
在一些实施例中，显示装置的主要驱动方式包括：系统主板提供颜色(例红色/绿色/蓝色，(Red/Green/Blue，R/G/B))压缩信号、控制信号及电源传输至控制板100。控制板100上的时序单元101处理此等信号后，连同被驱动电路处理的电源，通过如柔性扁平电缆102，一并传输至印刷电路板103的源极驱动电路104及栅极驱动电路105，源极驱动电路104及栅极驱动电路105通过栅极线及源极线将必要性的数据与电源传输于显示区106，从而使得显示器获得呈现画面需求的电源、信号。
图2为本申请一实施例的显示装置的驱动电路示意图，在本申请的一实施例中，一种显示装置的驱动电路，包括：切换模块110，包括控制线路112、第一输入线路111、第二输入线路113与输出线路；控制单元200，所述控制单元200的输出端连接所述切换模块110的控制线路112；第一开关201，所述第一开关201的控制端连接所述切换模块110的控制线路112，所述第一开关201的第一端连接所述切换模块110的第一输入线路111；调压模块202，连接于所述第一开关201的第二端与所述切换模块110的第二输入线路113之间；其中，所述切换模块110的第一输入线路111电性耦接第一信号S1，所述控制单元200提供控制信号，所述控制信号为第一电位时，所述切换模块110作电路切换使所述切换模块110的输出线路与所述切换模块110的第一输 入端线路为电性连通，所述切换模块110的输出线路的输出信号0等同或相近于所述第一信号S1；所述控制信号为第二电位时，所述切换模块110作电路切换使所述切换模块110的输出线路与所述切换模块110的第二输入线路113为电性连通，所述第一开关201为打开，所述调压模块202调整所述第一信号S1为第二信号S2，并输出所述第二信号S2至所述切换模块110的第二输入线路113，所述切换模块110的输出线路的输出信号0等同或相近于所述第二信号S2。
图3为本申请一实施例的显示装置的驱动电路示意图，在本申请的一实施例中，所述控制单元为D型触发器2000，包括数字信号输入端D、触发信号输入端C与信号输出端Q，所述D型触发器200的信号输出端连接所述切换模块110的控制线路112，所述数字信号输入端D接收输入信号A，所述触发信号输入端C接收脉冲信号B，当所述脉冲信号B为第三电位时，所述数字信号输入端D把所述输入信号A赋值给所述D型触发器2000的信号输出端Q，所述D型触发器200的信号输出端Q输出所述输入信号A，当所述脉冲信号B为第四电位时，所述D型触发器2000的信号输出端Q无输出。
图4为本申请一实施例的显示装置的驱动电路示意图，在本申请的一实施例中，所述切换模块110包括：第二开关，所述第二开关为N型场效晶体管M2，所述N型场效晶体管M2的第一端1111为所述切换模块110的第一输入线路111，所述N型场效晶体管M2的第二端1112连接所述切换模块110的输出线路；第三开关，所述第三开关为P型场效晶体管M3，P型场效晶体管M3的第一端1211为所述切换模块110的第二输入线路113，所述P型场效晶体管M3的第二端1212连接所述切换模块110的输出线路；所述第一开关201为P型场效晶体管M1，所述第一电位为低电位，所述第二电位为高电位。
在本申请的一实施例中，所述第一开关201为N型场效晶体管，所述第二开关1101为P型场效晶体管，所述第三开关1102为P型场效晶体管，所述第一电位为高电位，所述第二电位为低电位。
在本申请的一实施例中，所述第一信号S1与所述第二信号S2皆为电压信号，所述第一信号S1的电压高于所述第二信号S2的电压。
图5为本申请一实施例的显示装置的驱动电路示意图，在本申请的一实施例中，一种显示装置的驱动电路,包括：D型触发器2000，包括数字信号输入端D、触发信号输入端C与信号输出端Q，所述数字信号输入端D接收输入信号A，所述触发信号输入端C接收脉冲信号B；P型场效晶体管M1，所述P型场效晶体管M1的第一端2111连接第一节点，所述P型场效晶体管M1的控制端连接所述信号输出端Q；N型场效晶体管M2，所述N型场效晶体管M2的第一端1111连接所述第一节点，所述N型场效晶体管M2的控制端连接所述信号输出端Q，所述N型场效晶体管M2的第二端1112 连接所述第二节点；P型场效晶体管M3，所述P型场效晶体管M3的控制端连接所述信号输出端Q，所述P型场效晶体管M3的第二端1212连接所述第二节点；第三电阻R3，所述第三电阻R3第一端连接所述D型触发器200的信号输出端Q，所述第三电阻R3第二端接地；以及调压模块202，所述调压模块202的输入端连接所述P型场效晶体管M1的第二端2112，所述调压模块202的输出端连接所述P型场效晶体管M3的第一端1211；所述第一节点电性耦接第一信号S1，所述第二节点电性耦接输出信号O。
其中，所述第一节点取得所述第一信号S1，所述脉冲信号B为高电位，所述D型触发器2000的信号输出端Q输出所述输入信号A，所述输入信号A为高电位时，所述N型场效晶体管M2打开，所述P型场效晶体管M1与P型场效晶体管M3关闭，所述第一信号通过所述N型场效晶体管M2而被传输至所述第二节点，此时O＝S1；所述输入信号A为低电位时，所述P型场效晶体管M1与所述P型场效晶体管M3打开，所述N型场效晶体管M2关闭，所述第一信号S1为所述调压模块202调整为所述第二信号S2，所述第二信号通过所述P型场效晶体管M3而被传输至所述第二节点，此时O＝S2；当所述脉冲信号B为低电位时，所述D型触发器2000的信号输出端Q无输出，此时由于所述第三电阻的接地作用，所述P型场效晶体管M1、所述N型场效晶体管M2和所述P型场效晶体管M3的控制端接收到低电位，此时O＝S2。
图6为本申请一实施例的显示装置的驱动电路示意图，在本申请的一实施例中，所述调压模块202包括：第一电阻R1，所述第一电阻R1第一端连接所述P型场效晶体管M1的第二端2112，所述第一电阻R1第二端连接所述P型场效晶体管M3的第一端1211；第二电阻R2，所述第二电阻R2的第一端连接所述第一电阻R1的第二端，所述第二电阻R2的第二端接地。第三电阻R3，所述第三电阻R3第一端连接所述D型触发器200的信号输出端Q，所述第三电阻R3第二端接地；第四电阻R4，所述第四电阻R4第一端连接所述数字信号输入端D，所述第四电阻R4第二端接地；所述D型触发器2000为上升沿时触发。
其中，所述第一节点取得所述第一信号S1，所述脉冲信号B为高电位，所述D型触发器2000的信号输出端Q输出所述输入信号A，所述输入信号A为高电位时，所述N型场效晶体管M2打开，所述P型场效晶体管M1与P型场效晶体管M3关闭，此时VGH＝VGH1；所述输入信号A为低电位时，所述P型场效晶体管M1与所述P型场效晶体管M3打开，所述N型场效晶体管M2关闭，此时O＝S2＝S1*R2/(R1+R2)；当所述脉冲信号B为低电位时，所述D型触发器2000的信号输出端Q无输出，当由于所述第四电阻R4接地的作用，所述P型场效晶体管M1、所述N型场效晶体管M2和所述P型场效晶体管M3的控制端接收到低电位，此时O＝S2＝S1*R2/(R1+R2)。
本申请可以在不大幅改变现有生产流程的前提下，提升栅极开启电压，对显示面板进行老化测 试，可以提升产品品质并降低生产成本。
在一些实施例中，本申请的所述显示面板可例如为液晶显示面板，然不限于此，其亦可为OLED显示面板，W-OLED显示面板，QLED显示面板，等离子体显示面板，曲面型显示面板或其他类型显示面板。
“在一些实施例中”及“在各种实施例中”等用语被重复地使用。所述用语通常不是指相同的实施例；但它也可以是指相同的实施例。“包含”、“具有”及“包括”等用词是同义词，除非其前后文意显示出其它意思。
以上所述，仅是本申请的实施例，并非对本申请作任何形式上的限制，虽然本申请已以具体的实施例揭露如上，然而并非用以限定本申请，任何熟悉本专业的技术人员，在不脱离本申请技术方案范围内，当可利用上述揭示的技术内容作出些许更动或修饰为等同变化的等效实施例，但凡是未脱离本申请技术方案的内容，依据本申请的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均仍属于本申请技术方案的范围内。
需要说明的是，对于前述的各个方法实施例，为了简单描述，故将其都表述为一系列的动作组合，但是本领域技术人员应该知悉，本申请并不受所描述的动作顺序的限制，因为依据本申请，某一些步骤可以采用其他顺序或者同时进行。其次，本领域技术人员也应该知悉，说明书中所描述的实施例均属于优选实施例，所涉及的动作和模块并不一定是本申请所必须的。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详细描述的部分，可以参见其他实施例的相关描述。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到各种等效的修改或替换，这些修改或替换都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以权利要求的保护范围为准。

Claims (17)

  1. 一种显示装置的驱动电路，包括：
    切换模块，包括控制线路、第一输入线路、第二输入线路与输出线路；
    控制单元，所述控制单元的输出端连接所述切换模块的控制线路；
    第一开关，所述第一开关的控制端连接所述切换模块的控制线路，所述第一开关的第一端连接所述切换模块的第一输入线路；
    调压模块，连接于所述第一开关的第二端与所述切换模块的第二输入线路之间；
    其中，所述切换模块的第一输入线路电性耦接第一信号，所述控制单元提供控制信号，所述控制信号为第一电位时，所述切换模块作电路切换使所述切换模块的输出线路与所述切换模块的第一输入端线路为电性连通，所述切换模块的输出线路的输出信号等同或相近于所述第一信号；
    所述控制信号为第二电位时，所述切换模块作电路切换使所述切换模块的输出线路与所述切换模块的第二输入线路为电性连通，所述第一开关为打开，所述调压模块调整所述第一信号为第二信号，并输出所述第二信号至所述切换模块的第二输入线路，所述切换模块的输出线路的输出信号等同或相近于所述第二信号。
  2. 如权利要求1所述的显示装置的驱动电路，其中，
    所述切换模块包括：
    第二开关，所述第二开关的第一端为所述切换模块的第一输入线路，所述第二开关的第二端连接所述切换模块的输出线路；
    第三开关，所述第三开关的第一端为所述切换模块的第二输入线路，所述第三开关的第二端连接所述切换模块的输出线路；
    其中，所述第二开关与所述第三开关的控制端为极性相反且连接所述切换模块的控制线路。
  3. 如权利要求2所述的显示装置的驱动电路，其中，所述第一开关与所述第三开关的控制端为极性相同。
  4. 如权利要求1所述的显示装置的驱动电路，其中，所述控制单元为触发器，所述触发器包括数字信号输入端、触发信号输入端与信号输出端，所述触发器的信号输出端连接所述切换模块的控制线路，所述数字信号输入端接收输入信号，所述触发信号输入端接收脉冲信号。
  5. 如权利要求4所述的显示装置的驱动电路，其中，当所述脉冲信号为第三电位时，所述数字信号输入端把所述输入信号赋值给所述触发器的信号输出端，所述触发器的信号输出端输出所述输入信号。
  6. 如权利要求4所述的显示装置的驱动电路，其中，当所述脉冲信号为第四电位时，所述触发器 的信号输出端无输出。
  7. 如权利要求4所述的显示装置的驱动电路，其中，所述触发器为D型触发器。
  8. 如权利要求2所述的显示装置的驱动电路，其中，所述第一开关与所述第三开关为P型场效晶体管，所述第二开关为N型场效晶体管。
  9. 如权利要求8所述的显示装置的驱动电路，其中，所述第一电位为高电位，所述第二电位为低电位。
  10. 如权利要求2所述的显示装置的驱动电路，其中，所述第一开关与所述第三开关为N型场效晶体管，所述第二开关为P型场效晶体管。
  11. 如权利要求10所述的显示装置的驱动电路，其中，所述第一电位为低电位，所述第二电位为高电位。
  12. 如权利要求1所述的显示装置的驱动电路，其中，所述第一信号与所述第二信号皆为电压信号，所述第一信号的电压高于所述第二信号的电压。
  13. 一种显示装置的驱动电路，包括：
    触发器，包括数字信号输入端、触发信号输入端与信号输出端，所述数字信号输入端接收输入信号，所述触发信号输入端接收脉冲信号；
    第一开关，所述第一开关的第一端连接第一节点，所述第一开关的控制端连接所述信号输出端；
    第二开关，所述第二开关的第一端连接所述第一节点，所述第二开关的控制端连接所述信号输出端，所述第二开关的第二端连接所述第二节点；
    第三开关，所述第三开关的控制端连接所述信号输出端，所述第三开关的第二端连接所述第二节点；以及
    调压模块，所述调压模块的输入端连接所述第一开关的第二端，所述调压模块的输出端连接所述第三开关的第一端；
    其中，所述第一节点电性耦接第一信号，所述第二节点电性耦接输出信号；
    所述第一节点取得第一信号，所述脉冲信号为高电位，所述触发器的信号输出端输出所述输入信号，所述输入信号为高电位时，所述第二开关打开，所述第一开关与第三开关关闭，所述第一信号通过所述第二开关而被传输至所述第二节点；
    所述输入信号为低电位时，所述第一开关与所述第三开关打开，所述第二开关关闭，所述第一信号为所述调压模块调整为第二信号，所述第二信号通过所述第三开关而被传输至所述第二节点；
    当所述脉冲信号为低电位时，所述触发器的信号输出端无输出。
  14. 如权利要求13所述的显示装置的驱动电路，其中，所述触发器为D型触发器。
  15. 如权利要求13所述的显示装置的驱动电路，其中，所述第一开关与所述第三开关为P型场效晶体管，所述第二开关为N型场效晶体管。
  16. 如权利要求13所述的显示装置的驱动电路，其中，所述第一信号与所述第二信号皆为电压信号，所述第一信号的电压高于所述第二信号的电压。
  17. 如权利要求13所述的显示装置的驱动电路，其中，所述调压模块，包括：
    第一电阻，所述第一电阻的第一端连接所述第一开关的第二端，所述第一电阻的第二端连接所述第三开关的第一端；
    第二电阻，所述第二电阻的第一端连接所述第一电阻的第二端，所述第二电阻的第二端接地。
PCT/CN2018/116593 2018-11-09 2018-11-21 一种显示装置的驱动电路 Ceased WO2020093447A1 (zh)

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