WO2020062614A1 - 显示面板及其驱动方法、显示装置 - Google Patents

显示面板及其驱动方法、显示装置 Download PDF

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Publication number
WO2020062614A1
WO2020062614A1 PCT/CN2018/121639 CN2018121639W WO2020062614A1 WO 2020062614 A1 WO2020062614 A1 WO 2020062614A1 CN 2018121639 W CN2018121639 W CN 2018121639W WO 2020062614 A1 WO2020062614 A1 WO 2020062614A1
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Prior art keywords
numbered
odd
switching circuit
driving chip
driving
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PCT/CN2018/121639
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English (en)
French (fr)
Inventor
曹军红
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惠科股份有限公司
重庆惠科金渝光电科技有限公司
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Publication of WO2020062614A1 publication Critical patent/WO2020062614A1/zh

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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
    • G09G3/34—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
    • 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
    • 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

Definitions

  • the present application relates to the technical field of liquid crystal display, and particularly to a display panel, a driving method thereof, and a display device.
  • the development trend of the LCD panel industry is to design low-cost, narrow-border products, and it is generally adopted to design a scan line driver circuit on the array substrate instead of the scan line driver function.
  • the current array substrate includes a pixel region composed of row scanning lines and column data lines crossing each other, and each row scanning line is driven by a corresponding array substrate scanning line driving chip (Gate).
  • Driver On Array (GOA unit) driver doing AT (Array during driving of pixel area) Test (array test), when all the driving signal of the driving chip is set to high level, the effective display test of the pixel area of the array substrate can be performed.
  • Driving in this uniform high level method is prone to miss detection. And when there is a defective display area, it is difficult to locate the defective display area.
  • the embodiments of the present application solve a problem that an array test of an array substrate in a liquid crystal display device in the prior art is easily missed by providing a display panel.
  • An embodiment of the present application provides a display panel, and the display device includes:
  • Driving chip set to provide driving signals
  • a plurality of rows of scanning lines and a plurality of columns of data lines, a plurality of said rows of scanning lines and a plurality of said columns of data lines are intersected, and each row of scanning lines connects a row of sub-pixels in the pixel array and a driving chip;
  • a switching circuit wherein the switching circuit is provided between each of the driving chips and a corresponding scanning line, and the switching circuit is used to turn on or off the connection of the odd-numbered scanning lines to the corresponding driving chip and the even-numbered scanning The connection of the line with the corresponding driving chip.
  • the even-numbered driving chip when the odd-numbered driving chip is connected to the corresponding even-numbered line scanning line, the even-numbered driving chip is disconnected from the corresponding even-numbered line scanning line; or when the even-numbered driving chip is connected to the corresponding even-numbered line scanning line, The odd-numbered driving chip is disconnected from the corresponding odd-numbered line scan line.
  • the switch circuit includes a first switch circuit and a second switch circuit.
  • the first switch circuit is disposed between each of the odd-numbered driving chips and a corresponding odd-numbered row scanning line.
  • the second switch circuit is provided. Between each even-numbered driving chip and the corresponding even-numbered row scanning line.
  • the first switching circuit connected between the odd-numbered driving chip and the odd-numbered line scanning lines is an odd-numbered switching circuit
  • the second switch connected between the even-numbered driving chip and the even-numbered line scanning lines.
  • the circuit is an even-numbered switch circuit
  • the branches formed by sequentially connecting the odd-numbered driving chip, the switching circuit, and the odd-numbered row scanning lines are odd-numbered branches;
  • the branches formed by the even-numbered driving chips, the even-numbered switching circuits, and the even-numbered row scanning lines being sequentially connected are even-numbered branches.
  • turning on or off of the odd-numbered switching circuit or the even-numbered switching circuit is controlled to control the on or off of the odd-numbered branch or the even-numbered branch.
  • the turn-on timings of the number of branches and the even-numbered branches are complementary timings
  • the even-numbered branch When the odd-numbered branch is turned on, the even-numbered branch is turned off; when the odd-numbered branch is turned off, the even-numbered branch is turned on.
  • the thin film transistors corresponding to the scanning lines of the pixel array are driven line by line to work.
  • the switch circuit includes a first switch circuit and a second switch circuit.
  • the first switch circuit is disposed between each of the odd-numbered driving chips and a corresponding odd-numbered row scanning line.
  • the second switch circuit is provided. Between each even-numbered driving chip and the corresponding even-numbered row scanning line.
  • the display panel further includes a control chip, and an output terminal of the control chip is connected to a control terminal of each of the first switch circuits and a control terminal of each of the second switch circuits;
  • the control chip controls the first switch circuit to be turned on, and at the same time controls the second switch circuit to be turned off; or the control chip controls the first switch circuit to be turned off, and at the same time, controls the second switch circuit to be turned on.
  • the output terminal of the control chip includes a first output terminal and a second output terminal.
  • the first output terminal is connected to the control terminal of each of the first switching circuits, and the second output terminal is connected to each of the first switching circuits.
  • the control terminals of the second switching circuits are connected; the output signals of the first output terminal and the second output terminal are opposite.
  • control terminal of the first switch circuit is connected in series with the first output terminal
  • control terminal of the second switch circuit is connected in series with the second output terminal
  • the switching circuit is a thin film transistor.
  • the present application also proposes a driving method for a display panel.
  • the driving method includes the following steps:
  • the driving chip receives the scanning line driving signal
  • Each odd-numbered driving chip drives a corresponding odd-numbered row scanning line of the pixel array
  • each even-numbered driving chip drives a corresponding even-numbered row scanning line of the pixel array.
  • the present application also proposes a display device including the display panel as described above; the display panel includes;
  • Driving chip set to provide driving signals
  • a plurality of rows of scanning lines and a plurality of columns of data lines, a plurality of said rows of scanning lines and a plurality of said columns of data lines are intersected, and each row of scanning lines connects a row of sub-pixels in the pixel array and a driving chip;
  • a switching circuit wherein the switching circuit is provided between each of the driving chips and a corresponding scanning line, and the switching circuit is used to turn on or off the connection of the odd-numbered scanning lines to the corresponding driving chip and the even-numbered scanning The connection of the line with the corresponding driving chip.
  • the opening or closing of the odd-numbered switching circuit or the even-numbered switching circuit by controlling the opening or closing of the odd-numbered switching circuit or the even-numbered switching circuit, the on or off of the odd-numbered branch or the even-numbered branch can be controlled.
  • the scan lines are driven in the form of odd or even lines, so that the defective areas of the pixel array can be detected quickly, the situation of missed detection can be avoided, and the specific location of the defects can be accurately located.
  • the scanning lines of the pixel array can also be driven line by line by controlling the on or off of the switching circuit of each branch, which can further accurately locate the specific position of the pixel array; due to the large number of lines of the scanning line of the pixel array, comprehensive consideration of the driving Efficiency and bad detection rate, the optional parity drive scan line can be selected, which not only improves the bad detection rate, but also does not affect the driving efficiency.
  • FIG. 1 is a schematic structural diagram of an embodiment of a display panel of the present application.
  • FIG. 2 is a detailed structural diagram of an embodiment of a display panel of the present application.
  • FIG. 3 is a schematic diagram of steps of an embodiment of a driving method of a display panel of the present application.
  • FIG. 4 is a detailed step diagram of an embodiment of a driving method of a display panel of the present application.
  • Label name 100 Pixel array 210 Odd driver chip 110 Scan line 220 Even driver chip 111 Odd line scan lines 300 Switch circuit 112 Even line scan line 310 First switching circuit 120 Data line 320 Second switching circuit 200 Driver chip 400 Control chip
  • an embodiment of the present application provides a display panel.
  • the display panel is usually a liquid crystal display panel.
  • the display panel includes a pixel array 100 defined by a plurality of rows of scanning lines 110 and a plurality of columns of data lines 120.
  • Each row of scanning lines 110 is connected to a driving chip 200 configured to provide a scanning line driving signal.
  • a switching circuit 300 is provided between each of the driving chips 200 and a corresponding scanning line 110, and the switching circuits 300 are turned on respectively. Or disconnect the odd-numbered line scan lines 111 from the corresponding drive chip 200 and the even-numbered line scan lines 112 from the corresponding drive chip 200.
  • the driving chip 200 receives a driving signal and outputs the driving signal to each scanning line 110 corresponding to the pixel array 100 to drive the scanning line 110.
  • the driving signal is usually a high-level signal; the scanning line connected to the pixel array 100 110 is divided into odd-numbered scanning lines 111 and even-numbered scanning lines 112.
  • the driving chip 200 connected to the odd-numbered scanning lines 111 is an odd-numbered driving chip 210, and the driving chip 200 connected to the even-numbered scanning lines 112 is an even-numbered driving chip. 220.
  • the switching circuit 300 connected between the odd-numbered driving chip 210 and the odd-line scanning line 111 is an odd-numbered switching circuit 310
  • the switching circuit 300 connected between the even-numbered driving chip 220 and the even-line scanning line 112 is an even-numbered switching circuit 320.
  • the branch formed by sequentially connecting the odd-numbered driving chip 210, the odd-numbered switching circuit 310, and the odd-numbered row scanning line 111 is defined as the odd-numbered branch, and the even-numbered driving chip 220, the even-numbered switching circuit 320, and the even-numbered scanning line 112 are sequentially connected.
  • the branches formed are even branches. Then, by controlling the opening or closing of the odd-numbered switching circuit 310 or the even-numbered switching circuit 320, it is possible to control the on or off of the odd-numbered branch or the even-numbered branch.
  • the scanning line 110 of the pixel array 100 is driven. In the process, the scanning lines 110 may be driven in an odd or even line manner, so that the defective area of the pixel array 100 is detected quickly, the situation of missed detection is avoided, and the specific location of the defect can be accurately located.
  • the scanning line 110 of the pixel array 100 can be driven line by line by controlling the switching circuit 300 of each branch to be turned on or off, which can further accurately locate the bad specific position of the pixel array 100;
  • the scanning line 110 of 100 has a large number of lines. Considering the driving efficiency and the defective detection rate comprehensively, it is optional to use the parity driving scanning line 110, which not only improves the defective detection rate but also does not affect the driving efficiency.
  • the switching circuit 300 may be a thin film transistor. Of course, in other embodiments, other types of transistors may be used.
  • an array substrate is a substrate provided with a thin film transistor array.
  • a plurality of scan lines and a plurality of data lines are provided, a plurality of rows of scan lines and a plurality of columns of data lines correspond to corresponding thin films in the TFT array.
  • Transistor connection is a substrate provided with a thin film transistor array.
  • the even-numbered driving chip 220 is disconnected from the corresponding even-numbered line scanning line 112; or, when the even-numbered driving chip 220 is corresponding to the corresponding even-numbered line scanning line When 112 is turned on, the odd-numbered driving chip 210 is disconnected from the corresponding odd-numbered row scanning line 111.
  • the conduction timing of the odd-numbered branch and the even-numbered branch is a complementary timing, that is, when the odd-numbered branch is turned on, the even-numbered branch is turned off; when the odd-numbered branch is turned off, the even-numbered branch is turned on.
  • the odd-numbered branch is turned on, the even-numbered branch is turned off, the even-numbered branch is turned on.
  • the odd-numbered switching circuit 310 When the odd-numbered switching circuit 310 is turned on and the odd-numbered branch is turned on, the odd-numbered driving chip 210 drives the odd-numbered line scan line 111; at the same time, the even-numbered switching circuit 320 is turned off and the even-numbered branch is turned off, the driving signal of the even-numbered driving chip 220 is not It is transmitted to the even-numbered line scanning lines 112, and at this time, only the odd-numbered line scanning lines 111 are driven.
  • the even-numbered switching circuit 320 When the even-numbered switching circuit 320 is turned on and the even-numbered branch is turned on, the even-numbered driving chip 220 drives the even-numbered row scanning line 112; at the same time, the odd-numbered switching circuit 310 is turned off and the odd-numbered branch is disconnected, the driving signal of the odd-numbered driving chip 210 is not It is transmitted to the odd-numbered line scanning lines 111, and at this time, only the even-numbered line scanning lines 112 are driven.
  • the defective areas of the pixel array 100 can be quickly detected, and the specific locations of the defects can be accurately located.
  • the switching circuit 300 includes a first switching circuit 310 and a second switching circuit 320, and the first switching circuit 310 is disposed between each of the odd-numbered driving chips 210 and the corresponding odd-numbered row scanning lines 111.
  • the second switching circuit 320 is disposed between each of the even-numbered driving chips 220 and the corresponding even-numbered row scanning lines 112.
  • the first switching circuit 310 is an odd switching circuit 310 in an odd branch
  • the second switching circuit 320 is an even switching circuit 320 in an even branch.
  • Each first switching circuit 310 is connected to one In the corresponding odd-numbered branches
  • each second switching circuit 320 is connected to a corresponding even-numbered branch, and correspondingly, the entire pixel array 100 need only be divided into two groups of regions arranged for driving, and driven in this manner. Even if the number of scan lines 110 of the pixel array 100 is huge, the driving efficiency of the pixel array 100 will not be substantially affected.
  • the display panel further includes a control chip 400, an output terminal of the control chip 400, a control terminal of each of the first switch circuits 310, and a control terminal of each of the second switch circuits 320. Connection; the control chip 400 controls the first switch circuit 310 to turn on, and at the same time controls the second switch circuit 320 to turn off; or the control chip 400 controls the first switch circuit 310 to turn off, and at the same time, controls all The second switch circuit 320 is turned on.
  • Each switch circuit 300 has a control terminal.
  • the control chip 400 outputs an enable control signal to each switch circuit 300 to control each switch circuit 300 to be turned on and off.
  • the enable control signals that the control chip 400 controls to output to each of the first switch circuits 310 are the same, and the enable control signals that the control chip 400 controls to output to each of the second switch circuits 320 are the same, but output to each of the first
  • the enable control signal of one switch circuit 310 and the enable control signal output to each second switch circuit 320 are different, and are two opposite signals.
  • the output terminal of the control chip 400 includes a first output terminal and a second output terminal, the first output terminal is connected to the control terminal of each of the first switching circuits 310, and the second output terminal Connected to the control terminal of each of the second switch circuits 320; the output signal of the first output terminal is opposite to that of the second output terminal.
  • the control terminal of the first switch circuit 310 is connected in series with the first output terminal, and the control terminal of the second switch circuit 320 is connected in series with the second output terminal.
  • the control chip 400 only needs to control that the signals output from the first output terminal and the second output terminal are opposite or when the first output terminal has a signal output, the second output terminal has no signal output, or when the second output terminal has a signal output, the first output No signal at the end can achieve the effect of either only the odd-numbered branches or only the even-numbered branches, enabling precise drive control.
  • the control terminal of each first switch circuit 310 is connected in series and then connected to the first output terminal of the control chip 400, and the control terminal of each second switch circuit 320 is connected in series and then connected to the second output terminal of the control chip 400. The connection in this way reduces the line connection between various components, makes the structure of the entire display panel neat, and improves the driving safety.
  • an embodiment of the present application provides a driving method for a display panel.
  • the driving method includes the following steps:
  • Step S100 the driving chip receives a scanning line driving signal
  • Step S200 Each odd-numbered driving chip drives the corresponding odd-numbered row scanning lines of the pixel array, and each even-numbered driving chip drives the corresponding even-numbered row scanning lines of the pixel array.
  • the driving chip 200 receives a driving signal and outputs the driving signal to each scanning line 110 of the pixel array 100 to drive the scanning line 110.
  • the driving signal is usually a high-level signal; the scanning line 110 of the pixel array 100 is divided into odd numbers.
  • the line scan line 111 and the even line scan line 112 correspond to the drive chip 200 connected to the odd line scan line 111 as an odd drive chip 210, and the drive chip 200 connected to the even line scan line 112 is an even drive chip 220.
  • the switching circuit 300 between the odd-numbered driving chip 210 and the odd-line scanning line 111 is an odd-numbered switching circuit 310, and the switching circuit 300 connected between the even-numbered driving chip 220 and the even-line scanning line 112 is an even-numbered switching circuit 320.
  • the branch formed by sequentially connecting the odd-numbered driving chip 210, the odd-numbered switching circuit 310, and the odd-numbered row scanning line 111 is defined as the odd-numbered branch, and the even-numbered driving chip 220, the even-numbered switching circuit 320, and the even-numbered scanning line 112 are sequentially connected.
  • the branches formed are even branches. Then, by controlling the opening or closing of the odd-numbered switching circuit 310 or the even-numbered switching circuit 320, it is possible to control the on or off of the odd-numbered branch or the even-numbered branch.
  • the scanning line 110 of the pixel array 100 is driven. In the process, the scanning lines 110 may be driven in an odd or even line manner, so that the defective area of the pixel array 100 is detected quickly, the situation of missed detection is avoided, and the specific location of the defect can be accurately located.
  • the scanning line 110 of the pixel array 100 can be driven line by line by controlling the switching circuit 300 of each branch to be turned on or off, which can further accurately locate the bad specific position of the pixel array 100;
  • the scan line 110 of 100 has a large number of lines. Considering the driving efficiency and the bad detection rate comprehensively, the parity drive scanning line 110 can be selected, which not only improves the bad detection rate, but also does not affect the driving efficiency.
  • step S200 (where each odd-numbered driving chip drives a corresponding odd-numbered row scanning line of the pixel array, and each even-numbered driving chip drives a corresponding even-numbered row scanning line of the pixel array) is specifically:
  • Step S210 the connection between each odd-numbered driving chip and the corresponding odd-line scanning line is turned on, and at the same time, each even-numbered driving chip is disconnected from the corresponding even-line scanning line;
  • Step S220 Alternatively, each odd-numbered driving chip is disconnected from the corresponding odd-line scanning line, and at the same time, each even-numbered driving chip is connected to the corresponding even-numbered scanning line.
  • the conduction timing of the odd-numbered branch and the even-numbered branch is a complementary timing, that is, when the odd-numbered branch is turned on, the even-numbered branch is turned off; when the odd-numbered branch is turned off, the even-numbered branch is turned on.
  • the odd-numbered branch is turned on, the even-numbered branch is turned off, the even-numbered branch is turned on.
  • the odd-numbered switching circuit 310 When the odd-numbered switching circuit 310 is turned on and the odd-numbered branch is turned on, the odd-numbered driving chip 210 drives the odd-numbered line scan line 111; at the same time, the even-numbered switching circuit 320 is turned off and the even-numbered branch is turned off, the driving signal of the even-numbered driving chip 220 is not turned on. It is transmitted to the even-numbered line scanning lines 112, and at this time, only the odd-numbered line scanning lines 111 are driven.
  • the even-numbered switching circuit 320 When the even-numbered switching circuit 320 is turned on and the even-numbered branch is on, the even-numbered driving chip 220 drives the even-numbered row scanning line 112; at the same time, the odd-numbered switching circuit 310 is off and the odd-numbered branch is disconnected, the driving signal of the odd-numbered driving chip 210 is It is transmitted to the odd-numbered line scanning lines 111, and at this time, only the even-numbered line scanning lines 112 are driven.
  • the defective areas of the pixel array 100 can be quickly detected, and the specific locations of the defects can be accurately located.
  • an embodiment of the present application further provides a display device, which includes the display panel described above.
  • the structure, working principle, and beneficial effects of the display panel are referred to the foregoing embodiments, and are not repeated here.

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Abstract

一种显示面板及其驱动方法、显示装置，显示面板包括驱动芯片（200），设置为提供驱动信号；像素阵列（100）；若干行扫描线（110）和若干列数据线（120），若干行扫描线（110）和若干列数据线（120）交叉设置，每行扫描线（110）连接像素阵列（100）中的一行子像素及一个驱动芯片（200）；开关电路（300），在每个驱动芯片（200）与对应的扫描线（110）之间设置有开关电路（300），通过开关电路（300）分别导通或断开奇数行扫描线（110）与对应的驱动芯片（210）的连接，以及偶数行扫描线（110）与对应的驱动芯片（220）的连接。

Description

显示面板及其驱动方法、显示装置
相关专利
本申请要求2018年09月30日，申请号为201811166188.1，申请名称为“显示面板及其驱动方法、显示装置”的中国专利申请的优先权，在此将其全文引入作为参考。
技术领域
本申请涉及液晶显示技术领域，特别涉及一种显示面板及其驱动方法、显示装置。
背景技术
目前，液晶面板行业的发展趋势为设计低成本，窄边框的产品，则通常采用在阵列基板上设计扫描线驱动电路来代替扫描线驱动器功能的方案。如图1所示，目前的阵列基板包括相互交叉的行扫描线与列数据线构成的像素区域，各个行扫描线均由对应的阵列基板扫描线驱动芯片（Gate Driver On Array，GOA单元）驱动，在像素区域的驱动过程中做AT（Array Test，阵列测试）时，驱动芯片的驱动信号全部设置为高电平时，即可进行阵列基板的像素区域的有效显示测试，采用此种统一置高电平的方式进行驱动，容易发生漏检，并且当有不良显示区域存在时，比较难定位不良显示区域。
申请内容
本申请实施例通过提供一种显示面板，解决了现有技术中液晶显示装置中阵列基板的阵列测试容易漏检的问题。
本申请实施例提供了一种显示面板，该显示装置包括:
驱动芯片，设置为提供驱动信号；
像素阵列；
若干行扫描线和若干列数据线，若干所述行扫描线和若干所述列数据线交叉设置，每行扫描线连接所述像素阵列中的一行子像素及一个所述驱动芯片；
开关电路，在每个所述驱动芯片与对应的扫描线之间设置有所述开关电路，通过所述开关电路分别导通或断开奇数行扫描线与对应的驱动芯片的连接、偶数行扫描线与对应的驱动芯片的连接。
可选地，当奇数驱动芯片与对应的奇数行扫描线导通时，偶数驱动芯片与对应的偶数行扫描线断开；或者，当偶数驱动芯片与对应的偶数行扫描线导通时，所述奇数驱动芯片与对应的奇数行扫描线断开。
可选地，所述开关电路包括为第一开关电路和第二开关电路，所述第一开关电路设置在每一奇数驱动芯片与对应的奇数行扫描线之间，所述第二开关电路设置在每一偶数驱动芯片与对应的偶数行扫描线之间。
可选地，连接在所述奇数驱动芯片和所述奇数行扫描线之间的第一开关电路为奇数开关电路，连接在所述偶数驱动芯片和所述偶数行扫描线之间的第二开关电路为偶数开关电路
可选地，所述奇数驱动芯片、所述开关电路、所述奇数行扫描线顺次连接构成的支路为奇数支路；
所述偶数驱动芯片、所述偶数开关电路、所述偶数行扫描线顺次连接构成的支路为偶数支路。
可选地，通过控制所述奇数开关电路或所述偶数开关电路的开启或关闭，以控制所述奇数支路或所述偶数支路的导通或断开。
可选地，所述数支路与所述偶数支路的导通时序为互补时序；
当所述奇数支路导通时，所述偶数支路断开；所述奇数支路断开时，所述偶数支路导通。
可选地，通过控制所述奇数支路或所述偶数支路的开关电路的开启或关闭，逐行驱动像素阵列的扫描线对应的薄膜晶体管工作。
可选地，所述开关电路包括为第一开关电路和第二开关电路，所述第一开关电路设置在每一奇数驱动芯片与对应的奇数行扫描线之间，所述第二开关电路设置在每一偶数驱动芯片与对应的偶数行扫描线之间。
可选地，所述显示面板还包括控制芯片，所述控制芯片的输出端与每个所述第一开关电路的控制端、每个所述第二开关电路的控制端连接；
所述控制芯片控制所述第一开关电路开启，同时，控制所述第二开关电路关闭；或者，所述控制芯片控制所述第一开关电路关闭，同时，控制所述第二开关电路开启。
可选地，所述控制芯片的输出端包括第一输出端和第二输出端，所述第一输出端与所述每个第一开关电路的控制端连接，所述第二输出端与每个所述第二开关电路的控制端连接；所述第一输出端与所述第二输出端的输出信号相反。
可选地，所述第一开关电路的控制端串联连接后与所述第一输出端连接，所述第二开关电路的控制端串联连接后与所述第二输出端连接。
可选地，所述开关电路为薄膜晶体管。
本申请还提出一种显示面板的驱动方法，所述驱动方法包括以下步骤：
驱动芯片接收扫描线驱动信号；
每个奇数驱动芯片驱动像素阵列的对应奇数行扫描线，每个偶数驱动芯片驱动像素阵列的对应偶数行扫描线。
本申请还提出一种显示装置，所述显示装置包括如上所述的显示面板；显示面板包括；
驱动芯片，设置为提供驱动信号；
像素阵列；
若干行扫描线和若干列数据线，若干所述行扫描线和若干所述列数据线交叉设置，每行扫描线连接所述像素阵列中的一行子像素及一个所述驱动芯片；
开关电路，在每个所述驱动芯片与对应的扫描线之间设置有所述开关电路，通过所述开关电路分别导通或断开奇数行扫描线与对应的驱动芯片的连接、偶数行扫描线与对应的驱动芯片的连接。
本申请实施例中提供的一个或多个技术方案，至少具有如下技术效果或优点：
通过采用上述方案，通过控制奇数开关电路或偶数开关电路的开启或关闭，则可控制奇数支路或偶数支路的导通或断开，在像素阵列对应的的扫描线驱动过程中，可以采用分奇数行或偶数行的方式驱动扫描线，从而，很快地检出像素阵列的不良区域，避免漏检的情况发生，并能精确地定位出不良的具体位置。也可通过控制各支路的开关电路的开启或关闭，逐行驱动像素阵列的扫描线，可进一步精确定位像素阵列的不良具体位置；由于像素阵列的扫描线的行数众多，综合考虑驱动的效率与不良检出率，可选采用分奇偶驱动扫描线，不仅提高了不良检出率，也不会影响驱动的效率。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，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示出的结构获得其他的附图。
图1为本申请显示面板的一实施例的结构示意图；
图2为本申请显示面板的一实施例的详细结构示意图；
图3为本申请显示面板的驱动方法的一实施例的步骤示意图；
图4为本申请显示面板的驱动方法的一实施例的详细步骤示意图。
附图标号说明：
标号 名称 标号 名称
100 像素阵列 210 奇数驱动芯片
110 扫描线 220 偶数驱动芯片
111 奇数行扫描线 300 开关电路
112 偶数行扫描线 310 第一开关电路，奇数开关电路
120 数据线 320 第二开关电路，偶数开关电路
200 驱动芯片 400 控制芯片
本申请目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
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，所描述的实施例仅仅是本申请的一部分实施例，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作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。
需要说明，若本申请实施例中所有方向性指示（诸如上、下、左、右、前、后……）仅用于解释在某一特定姿态（如附图所示）下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
另外，若在本申请中涉及“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本申请要求的保护范围之内。
一实施例
参照图1及图2，本申请实施例提供了一种显示面板，该显示面板通常为液晶显示面板，该显示面板包括由若干行扫描线110和若干列数据线120交叉定义的像素阵列100，每行扫描线110连接一个设置为提供扫描线驱动信号的驱动芯片200，在每个所述驱动芯片200与对应的扫描线110之间设置有开关电路300，通过所述开关电路300分别导通或断开奇数行扫描线111与对应的驱动芯片200的连接、偶数行扫描线112与对应的驱动芯片200的连接。
在本实施例中，驱动芯片200接收驱动信号并输出至像素阵列100对应的各行扫描线110，用以驱动扫描线110，该驱动信号通常为高电平信号；与像素阵列100连接的扫描线110分为奇数行扫描线111和偶数行扫描线112，对应地，与奇数行扫描线111连接的驱动芯片200为奇数驱动芯片210，与偶数行扫描线112连接的驱动芯片200为偶数驱动芯片220，连接在奇数驱动芯片210和奇数行扫描线111之间的开关电路300为奇数开关电路310，连接在偶数驱动芯片220和偶数行扫描线112之间的开关电路300为偶数开关电路320。
根据以上结构，定义奇数驱动芯片210、奇数开关电路310、奇数行扫描线111顺次连接构成的支路为奇数支路，偶数驱动芯片220、偶数开关电路320、偶数行扫描线112顺次连接构成的支路为偶数支路。则通过控制奇数开关电路310或偶数开关电路320的开启或关闭，则可控制奇数支路或偶数支路的导通或断开，通过上述显示面板的结构，在像素阵列100的扫描线110驱动过程中，可以采用分奇数行或偶数行的方式驱动扫描线110，从而，很快地检出像素阵列100的不良区域，避免漏检的情况发生，并能精确地定位出不良的具体位置。
当然，在本实施例中，也可通过控制各支路的开关电路300的开启或关闭，逐行驱动像素阵列100的扫描线110，可进一步精确定位像素阵列100的不良具体位置；由于像素阵列100的扫描线110的行数众多，综合考虑驱动的效率与不良检出率，可选采用分奇偶驱动扫描线110，不仅提高了不良检出率，也不会影响驱动的效率。
在本实施例中，所述开关电路300可采用薄膜晶体管。当然在其他实施例中，也可以采用其他类型的晶体管。
随着液晶显示技术领域的高密度，高分辨率，节能化，轻便化，集成化发展，采用薄膜晶体管作为各支路的开关电路300，也是液晶显示技术领域发展的重要支撑。薄膜晶体管是在阵列基板上沉积一层薄膜当做通道区，它采用氢化非晶硅 (a-Si:H) 为主要材料，氢化非晶硅的能阶小于单晶硅 (Eg =1.12eV)。通过应用薄膜晶体管于显示面板中，可以减少各像素间的互相干扰并增画面稳定度。
可以理解的是，阵列基板，即为设置有薄膜晶体管阵列的基板，在阵列基板上，设置有若干扫描线和若干数据线，若干行扫描线和若干列数据线与薄膜晶体管阵列中对应的薄膜晶体管连接。
可选地，当奇数驱动芯片210与对应的奇数行扫描线111导通时，偶数驱动芯片220与对应的偶数行扫描线112断开；或者，当偶数驱动芯片220与对应的偶数行扫描线112导通时，所述奇数驱动芯片210与对应的奇数行扫描线111断开。
在本实施例中，奇数支路与偶数支路的导通时序为互补时序，即当奇数支路导通时，偶数支路断开；奇数支路断开时，偶数支路导通。具体地，分以下两种情况：
一、奇数开关电路310开启时，奇数支路导通，则奇数驱动芯片210驱动奇数行扫描线111；同时，偶数开关电路320关闭，偶数支路断开，则偶数驱动芯片220的驱动信号不传输至偶数行扫描线112，此时，只有奇数行扫描线111被驱动。
二、偶数开关电路320开启时，偶数支路导通，则偶数驱动芯片220驱动偶数行扫描线112；同时，奇数开关电路310关闭，奇数支路断开，则奇数驱动芯片210的驱动信号不传输至奇数行扫描线111，此时，只有偶数行扫描线112被驱动。
通过这种分时驱动奇数行扫描线111或偶数行扫描线112的方式，可以快速地检出像素阵列100的不良区域，并能精确地定位出不良的具体位置。
可选地，所述开关电路300包括为第一开关电路310和第二开关电路320，所述第一开关电路310设置在每一奇数驱动芯片210与对应的奇数行扫描线111之间，所述第二开关电路320设置在每一偶数驱动芯片220与对应的偶数行扫描线112之间。
在本实施例中，第一开关电路310即为奇数支路中的奇数开关电路310，第二开关电路320即为偶数支路中的偶数开关电路320，每一个第一开关电路310连接在一个对应的奇数支路中，每一个第二开关电路320连接在一个对应的偶数支路中，则对应地整个像素阵列100即只需划分为间隔排列的两组区域进行驱动，按照此种方式驱动，即使像素阵列100的扫描线110行数量巨大，像素阵列100的驱动效率也基本不会受到影响。
在一实施例中，所述显示面板还包括控制芯片400，所述控制芯片400的输出端与每个所述第一开关电路310的控制端、每个所述第二开关电路320的控制端连接；所述控制芯片400控制所述第一开关电路310开启，同时，控制所述第二开关电路320关闭；或者，所述控制芯片400控制所述第一开关电路310关闭，同时，控制所述第二开关电路320开启。
每一个开关电路300均具有控制端，通过控制芯片400输出使能控制信号至每一个开关电路300，可以控制每一个开关电路300的开启和关闭。具体地，控制芯片400控制输出至各第一开关电路310的使能控制信号是相同的，控制芯片400控制输出至各第二开关电路320的使能控制信号也是相同的，但输出至各第一开关电路310的使能控制信号和输出至各第二开关电路320的使能控制信号是不同的，并且是两相反的信号。
可选地，所述控制芯片400的输出端包括第一输出端和第二输出端，所述第一输出端与所述每个第一开关电路310的控制端连接，所述第二输出端与每个所述第二开关电路320的控制端连接；所述第一输出端与所述第二输出端的输出信号相反。所述第一开关电路310的控制端串联连接后与所述第一输出端连接，所述第二开关电路320的控制端串联连接后与所述第二输出端连接。
控制芯片400只需控制第一输出端与第二输出端输出的信号相反或者第一输出端有信号输出时、第二输出端无信号输出，或者第二输出端有信号输出时、第一输出端无信号，都可实现要么仅导通奇数支路、要么仅导通偶数支路的效果，实现精准驱动控制。将各第一开关电路310的控制端串联后再连接至控制芯片400的第一输出端，并将各第二开关电路320的控制端串联后再连接至控制芯片400的第二输出端，通过此种方式连接，减少了各元器件之间的线路连接，使得整个显示面板的结构整洁，提高了驱动的安全性。
在一实施例中，参照图3及图4，本申请实施例提供了一种显示面板的驱动方法，该驱动方法包括以下步骤：
步骤S100：驱动芯片接收扫描线驱动信号；
步骤S200：每个奇数驱动芯片驱动像素阵列的对应奇数行扫描线，每个偶数驱动芯片驱动像素阵列的对应偶数行扫描线。
本实施例中，驱动芯片200接收驱动信号并输出至像素阵列100的各行扫描线110，用以驱动扫描线110，该驱动信号通常为高电平信号；像素阵列100的扫描线110分为奇数行扫描线111和偶数行扫描线112，对应地，与奇数行扫描线111连接的驱动芯片200为奇数驱动芯片210，与偶数行扫描线112连接的驱动芯片200为偶数驱动芯片220，连接在奇数驱动芯片210和奇数行扫描线111之间的开关电路300为奇数开关电路310，连接在偶数驱动芯片220和偶数行扫描线112之间的开关电路300为偶数开关电路320。
根据以上结构，定义奇数驱动芯片210、奇数开关电路310、奇数行扫描线111顺次连接构成的支路为奇数支路，偶数驱动芯片220、偶数开关电路320、偶数行扫描线112顺次连接构成的支路为偶数支路。则通过控制奇数开关电路310或偶数开关电路320的开启或关闭，则可控制奇数支路或偶数支路的导通或断开，通过上述显示面板的结构，在像素阵列100的扫描线110驱动过程中，可以采用分奇数行或偶数行的方式驱动扫描线110，从而，很快地检出像素阵列100的不良区域，避免漏检的情况发生，并能精确地定位出不良的具体位置。
当然，在本实施例中，也可通过控制各支路的开关电路300的开启或关闭，逐行驱动像素阵列100的扫描线110，可进一步精确定位像素阵列100的不良具体位置；由于像素阵列100的扫描线110的行数众多，综合考虑驱动的效率与不良检出率，可选采用奇偶驱动扫描线110，不仅提高了不良检出率，也不会影响驱动的效率。
可选地，步骤S200（所述每个奇数驱动芯片驱动像素阵列的对应奇数行扫描线，每个偶数驱动芯片驱动像素阵列的对应偶数行扫描线）具体为：
步骤S210：导通每个奇数驱动芯片与对应的奇数行扫描线的连接，同时，断开每个偶数驱动芯片与对应偶数行扫描线的连接；
步骤S220：或者，断开每个奇数驱动芯片与对应的奇数行扫描线的连接，同时，导通每个偶数驱动芯片与对应偶数行扫描线的连接。
在本实施例中，奇数支路与偶数支路的导通时序为互补时序，即当奇数支路导通时，偶数支路断开；奇数支路断开时，偶数支路导通。具体地，分以下两种情况：
一、奇数开关电路310开启时，奇数支路导通，则奇数驱动芯片210驱动奇数行扫描线111；同时，偶数开关电路320关闭，偶数支路断开，则偶数驱动芯片220的驱动信号不传输至偶数行扫描线112，此时，只有奇数行扫描线111被驱动。
二、偶数开关电路320开启时，偶数支路导通，则偶数驱动芯片220驱动偶数行扫描线112；同时，奇数开关电路310关闭，奇数支路断开，则奇数驱动芯片210的驱动信号不传输至奇数行扫描线111，此时，只有偶数行扫描线112被驱动。
通过这种分时驱动奇数行扫描线111或偶数行扫描线112的方式，可以快速地检出像素阵列100的不良区域，并能精确地定位出不良的具体位置。
在一实施例中，同样地，基于同一申请构思，本申请实施例还提供了一种显示装置，该显示装置包括上述的显示面板。该显示面板的结构、工作原理以及所带来的有益效果，均参照前述实施例，在此不再赘述。
以上所述仅为本申请的可选实施例，并非因此限制本申请的专利范围，凡是在本申请的申请构思下，利用本申请说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本申请的专利保护范围内。

Claims (19)

  1. 一种显示面板，其中，包括:
    驱动芯片，设置为提供驱动信号；
    像素阵列；
    若干行扫描线和若干列数据线，若干所述行扫描线和若干所述列数据线交叉设置，每行扫描线连接所述像素阵列中的一行子像素及一个所述驱动芯片；
    开关电路，在每个所述驱动芯片与对应的扫描线之间设置有所述开关电路，通过所述开关电路分别导通或断开奇数行扫描线与对应的驱动芯片的连接，以及偶数行扫描线与对应的驱动芯片的连接。
  2. 如权利要求1所述的显示面板，其中，当奇数驱动芯片与对应的奇数行扫描线导通时，偶数驱动芯片与对应的偶数行扫描线断开；或者，当偶数驱动芯片与对应的偶数行扫描线导通时，所述奇数驱动芯片与对应的奇数行扫描线断开。
  3. 如权利要求1所述的显示面板，其中，所述开关电路包括第一开关电路和第二开关电路，所述第一开关电路设置在每一奇数驱动芯片与对应的奇数行扫描线之间，所述第二开关电路设置在每一偶数驱动芯片与对应的偶数行扫描线之间。
  4. 如权利要求3所述的显示面板，其中，连接在所述奇数驱动芯片和所述奇数行扫描线之间的第一开关电路为奇数开关电路，连接在所述偶数驱动芯片和所述偶数行扫描线之间的第二开关电路为偶数开关电路。
  5. 如权利要求4所述的显示面板，其中，所述奇数驱动芯片、所述开关电路、所述奇数行扫描线顺次连接构成的支路为奇数支路；
    所述偶数驱动芯片、所述偶数开关电路、所述偶数行扫描线顺次连接构成的支路为偶数支路。
  6. 如权利要求5所述的显示面板，其中，通过控制所述奇数开关电路或所述偶数开关电路的开启或关闭，以控制所述奇数支路或所述偶数支路的导通或断开。
  7. 如权利要求6所述的显示面板，其中，所述奇数支路与所述偶数支路的导通时序为互补时序；
    当所述奇数支路导通时，所述偶数支路断开；所述奇数支路断开时，所述偶数支路导通。
  8. 如权利要求5所述的显示面板，其中，通过控制所述奇数支路或所述偶数支路的开关电路的开启或关闭，逐行驱动像素阵列的扫描线对应的薄膜晶体管工作或停止。
  9. 如权利要求3所述的显示面板，其中，所述显示面板还包括控制芯片，所述控制芯片的输出端与每个所述第一开关电路的控制端、每个所述第二开关电路的控制端连接；
    所述控制芯片控制所述第一开关电路开启，同时，控制所述第二开关电路关闭；或者，所述控制芯片控制所述第一开关电路关闭，同时，控制所述第二开关电路开启。
  10. 如权利要求9所述的显示面板，其中，所述控制芯片的输出端包括第一输出端和第二输出端，所述第一输出端与所述每个第一开关电路的控制端连接，所述第二输出端与每个所述第二开关电路的控制端连接；所述第一输出端与所述第二输出端的输出信号相反。
  11. 如权利要求10所述的显示面板，其中，所述第一开关电路的控制端串联连接后与所述第一输出端连接，所述第二开关电路的控制端串联连接后与所述第二输出端连接。
  12. 如权利要求1所述的显示面板，其中，所述开关电路为薄膜晶体管。
  13. 一种显示面板的驱动方法，其中，所述驱动方法包括以下步骤：
    驱动芯片接收扫描线驱动信号；
    每个奇数驱动芯片驱动像素阵列的对应奇数行扫描线，每个偶数驱动芯片驱动像素阵列的对应偶数行扫描线。
  14. 如权利要求13所述的显示面板的驱动方法，其中，所述每个奇数驱动芯片驱动像素阵列的对应奇数行扫描线，每个偶数驱动芯片驱动像素阵列的对应偶数行扫描线的步骤具体为：
    导通每个奇数驱动芯片与对应的奇数行扫描线的连接，同时，断开每个偶数驱动芯片与对应偶数行扫描线的连接；
    或者，断开每个奇数驱动芯片与对应的奇数行扫描线的连接，同时，导通每个偶数驱动芯片与对应偶数行扫描线的连接。
  15. 一种显示装置，其中，所述显示装置包括显示面板，显示面板包括：
    驱动芯片，设置为提供驱动信号；
    像素阵列；
    若干行扫描线和若干列数据线，若干所述行扫描线和若干所述列数据线交叉设置，每行扫描线连接一个所述驱动芯片及所述像素阵列中的一行子像素；
    开关电路，在每个所述驱动芯片与对应的扫描线之间设置有所述开关电路，通过所述开关电路分别导通或断开奇数行扫描线与对应的驱动芯片的连接、偶数行扫描线与对应的驱动芯片的连接。
  16. 如权利要求15所述的显示装置，其中，当奇数驱动芯片与对应的奇数行扫描线导通时，偶数驱动芯片与对应的偶数行扫描线断开；或者，当偶数驱动芯片与对应的偶数行扫描线导通时，所述奇数驱动芯片与对应的奇数行扫描线断开。
  17. 如权利要求16所述的显示装置，其中，所述开关电路包括为第一开关电路和第二开关电路，所述第一开关电路设置在每一奇数驱动芯片与对应的奇数行扫描线之间，所述第二开关电路设置在每一偶数驱动芯片与对应的偶数行扫描线之间。
  18. 如权利要求17所述的显示装置，其中，所述显示面板还包括控制芯片，所述控制芯片的输出端与每个所述第一开关电路的控制端、每个所述第二开关电路的控制端连接；
    所述控制芯片控制所述第一开关电路开启，同时，控制所述第二开关电路关闭；或者，所述控制芯片控制所述第一开关电路关闭，同时，控制所述第二开关电路开启。
  19. 如权利要求18所述的显示面板，其中，所述控制芯片的输出端包括第一输出端和第二输出端，所述第一输出端与所述每个第一开关电路的控制端连接，所述第二输出端与每个所述第二开关电路的控制端连接；所述第一输出端与所述第二输出端的输出的信号极性相反。
PCT/CN2018/121639 2018-09-30 2018-12-18 显示面板及其驱动方法、显示装置 WO2020062614A1 (zh)

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CN110264934A (zh) * 2019-06-11 2019-09-20 重庆惠科金渝光电科技有限公司 显示面板的驱动电路、显示面板及显示装置
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