WO2020006802A1 - 具goa电路失效检测功能的显示面板 - Google Patents

具goa电路失效检测功能的显示面板 Download PDF

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Publication number
WO2020006802A1
WO2020006802A1 PCT/CN2018/098966 CN2018098966W WO2020006802A1 WO 2020006802 A1 WO2020006802 A1 WO 2020006802A1 CN 2018098966 W CN2018098966 W CN 2018098966W WO 2020006802 A1 WO2020006802 A1 WO 2020006802A1
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WO
WIPO (PCT)
Prior art keywords
goa circuit
circuit unit
unit group
failed
goa
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/CN2018/098966
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English (en)
French (fr)
Inventor
吴绍静
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Original Assignee
Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Priority to US16/302,643 priority Critical patent/US11069266B1/en
Publication of WO2020006802A1 publication Critical patent/WO2020006802A1/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
    • G09G3/34—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
    • 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
    • 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
    • G09G3/22—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]
    • G09G3/3266—Details of drivers for scan 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
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0404—Matrix technologies
    • G09G2300/0408—Integration of the drivers onto the display substrate
    • 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
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/08—Fault-tolerant or redundant circuits, or circuits in which repair of defects is prepared
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/12—Test circuits or failure detection circuits included in a display system, as permanent part thereof

Definitions

  • the invention relates to a display technology, in particular to a display panel with a GOA circuit failure detection function.
  • AMOLED Active-matrix organic light-emitting diode
  • a GOA Gate Driver on Array
  • GOA technology uses existing Thin Film Transistor-Liquid Crystal Display (TFT-LCD) array process is a technology in which the line scan drive circuit is fabricated on the array substrate to realize progressive scan drive.
  • TFT-LCD Thin Film Transistor-Liquid Crystal Display
  • GOA technology can reduce the welding process of integrated circuit boards (Integrated Circuit, IC), which can make the display panel more suitable for making narrow-frame or no-frame display products.
  • FIG. 1 shows a schematic diagram of a conventional display panel.
  • the display panel includes a display area (or active area). area, AA)) 10 and a non-display area.
  • the display panel also includes several cascaded GOA circuit units 11 such as GOA1, GOA2,... And GOAn arranged on the left and right sides of the display panel and the non-display area, and a test line 12 is connected to the GOA circuit unit 11 in the last stage.
  • the GOA circuit unit 11 is connected to a scanning line (not shown) in the display area 10 to provide a stable scanning signal of the scanning line.
  • the GOA circuit unit 11 may fail.
  • the prior art only detects the signal of the last stage (ie, the output signal of GOAn). It can only determine whether the GOA circuit has failed abnormally, but cannot determine which stage of the GOA circuit unit 11 has failed. Difficulties in GOA circuit repair.
  • An object of the present invention is to provide a display panel to improve the accuracy of GOA failure detection.
  • an aspect of the present invention provides a display panel, the display panel includes a display area and a non-display area, and the display area includes a plurality of scanning lines and a plurality of data lines interlaced A pixel unit, the display panel comprising: a number of cascaded GOA circuit units, which are arranged on the non-display area and located on one side of the display area, and these GOA circuit units are connected to those data lines in the display area
  • GOA circuit units are divided into several GOA circuit unit groups according to the order of each level.
  • Each GOA circuit unit group includes the same number of GOA circuit units.
  • a test line is connected to the end of each GOA circuit unit group.
  • the first-level GOA circuit units are connected through a connection line, and the number of the GOA circuit unit groups is the same as the number of the connection lines.
  • the test lines are used to detect a GOA circuit in a GOA circuit unit group as a unit. Whether the unit is invalid; and a plurality of virtual GOA circuit areas, the virtual GOA circuit areas are set corresponding to those GOA circuit unit groups, the number of the virtual GOA circuit areas and the GOA The number of circuit unit groups is the same.
  • the virtual GOA circuit area has the same function as the GOA circuit unit to replace the failed GOA circuit unit.
  • the failed GOA circuit unit is located in the same way as the failed GOA circuit.
  • the virtual GOA circuit areas of different groups are replaced.
  • a display panel includes a display area and a non-display area.
  • the display area includes a plurality of pixel units interlaced by a plurality of scanning lines and a plurality of data lines.
  • the display panel includes: a number of cascaded GOA circuit units, which are arranged on the non-display area and are located on one side of the display area. These GOA circuit units are connected to those data lines in the display area.
  • These GOA circuits are divided into several GOA circuit unit groups according to the order of each level, and each GOA circuit unit group includes the same number of GOA circuit units; and a test line is connected to the last stage of each GOA circuit unit group.
  • the GOA circuit units are connected through a connection line, and the number of the GOA circuit unit groups is the same as the number of the connection lines.
  • the test line is used to detect whether a GOA circuit unit within the GOA circuit unit group has failed. .
  • each GOA circuit unit in each GOA circuit unit group except the GOA circuit unit at the last stage is connected to the connection line through a connection line, and the test line is used to determine a After the failed GOA circuit unit group, it is detected which GOA circuit unit in the failed GOA circuit unit group fails.
  • the test line carries an output signal of the GOA circuit unit of the last stage in each GOA circuit unit group, which is the same as that of the GOA circuit unit of the last stage in each GOA circuit unit group. Normal signal comparison to detect which GOA circuit unit group has failed GOA circuit units.
  • the test line carries an output signal of a GOA circuit unit of the last stage in the current GOA circuit unit group, which is adjacent to the current GOA circuit unit in an adjacent GOA circuit unit group
  • the output signals of the GOA circuit units at the last stage are compared to determine whether there is a failed GOA circuit unit in the current GOA circuit unit group.
  • the current GOA circuit unit group when it is not equal to a predetermined interval, the current GOA circuit unit group is regarded as a failed GOA circuit unit; and when the output signal of the GOA circuit unit of the last stage in the current GOA circuit unit group is adjacent to the adjacent GOA circuit unit When the interval of the output signals of the GOA circuit units of the last stage in the GOA circuit unit group is equal to the predetermined interval, the GOA circuit units in the current GOA circuit unit group have not failed.
  • the display panel further includes a plurality of virtual GOA circuit areas, and the virtual GOA circuit areas are set corresponding to those GOA circuit unit groups, and the number of the virtual GOA circuit areas is the same as that of the GOA circuit units.
  • the number of groups is the same, and the virtual GOA circuit area has a circuit with the same function as the GOA circuit unit to replace a failed GOA circuit unit.
  • the failed GOA circuit unit is replaced by the virtual GOA circuit area located in a different group from the failed GOA circuit unit.
  • the display panel further includes: a repair line connected to a functioning virtual GOA circuit area to replace the failed GOA circuit unit, the repair line carrying a repair signal , Which is transmitted to the active virtual GOA circuit area and adjusted according to the position of the failed GOA circuit unit.
  • each GOA circuit unit group includes m-level GOA circuit units, where m is a positive integer greater than two.
  • the present invention uses a GOA circuit unit group as a unit to detect whether the GOA circuit unit therein has failed. Compared with the prior art, the present invention achieves more accurate GOA failure detection and improves GOA yield. The invention can further detect which GOA circuit unit in the failed GOA circuit unit group fails, and accurately locate the failed GOA circuit unit. The invention also provides a virtual GOA circuit area to replace the failed GOA circuit unit, and solves the problem that the production cost cannot be effectively reduced. Moreover, an advantage of the present invention is that multi-level GOA circuit unit repair can be performed through different sets of virtual GOA circuit areas.
  • FIG. 1 shows a schematic diagram of a conventional display panel.
  • FIG. 2 is a schematic diagram of a display panel according to the present invention.
  • FIG. 3 shows a schematic diagram of detection signals and normal timing in the present invention.
  • FIG. 4 is a schematic diagram showing output signals of adjacent GOAs in the present invention.
  • FIG. 5 is a schematic diagram showing a connection between a GOA circuit unit group and a test line in the present invention.
  • FIG. 6 is a schematic diagram of a display panel according to the present invention.
  • FIG. 2 shows a schematic diagram of a display panel according to the present invention.
  • the display panel is a liquid crystal display panel (liquid crystal display panel).
  • the display panel of the present invention includes a display area (or active area). area, AA)) 20 and a non-display area.
  • the display area 20 includes a plurality of scanning lines 21 and a plurality of data lines 22.
  • the scanning lines 21 are used to provide scanning signals, and the data lines 22 are used to provide data signals.
  • the display area 20 also includes a plurality of pixel units 23 for displaying images, which are formed by the scanning lines 21 and the data lines 22 being interlaced.
  • the display panel further includes a GOA (Gate Driver on Array, several cascaded GOA circuit units (G1, G2,..., Gn) 24 implemented by the technology of line scan integrated on the array substrate. These GOA circuit units 24 are disposed on the non-display area and the display area. The scanning lines 21 in 20 are connected. The GOA circuit unit 24 is used to provide a stable scanning signal for the scanning lines 21 to achieve a progressive scanning driving method.
  • the GOA circuit unit 24 may be disposed only on one side of the display panel, or may be disposed on two opposite sides of the display panel, and provides scanning signals to the scanning lines 21 in a staggered manner (as shown in FIG. 2). The following description is described with a structure provided on a single side of the display panel, and those skilled in the art can understand that the structure on the other side of the display panel works in the same or similar manner.
  • the GOA circuit units 24 are divided into a plurality of GOA circuit unit groups according to the order of each level, and each GOA circuit unit group includes the same number of GOA circuit units. For example, every three GOA circuit units 24 are grouped into a group, that is, GOA circuit units 24 of the first stage to the third stage are grouped into a group, the fourth to sixth stages are grouped into a group, and so on.
  • each GOA circuit unit group includes m-level GOA circuit units 24, where m is a positive integer greater than 2, that is, each GOA circuit unit group includes at least three GOA circuit units 24.
  • the display panel further includes a test line 25 disposed in the non-display area.
  • the GOA circuit unit 24 at the last stage in each GOA circuit unit group is connected to the test line 25 through a connection line 26.
  • the GOA circuit unit 24 of the last stage in the first GOA circuit unit group is the third stage
  • the GOA circuit unit 24 of the last stage in the second GOA circuit unit group is the sixth stage and the third stage.
  • the GOA circuit unit 24 of the first stage is connected to the test line 25, the GOA circuit unit 24 of the sixth stage is connected to the test line 25, and so on.
  • the number of GOA circuit unit groups is the same as the number of connection lines 26.
  • the test line 25 is used to detect whether the GOA circuit unit 24 in the GOA circuit unit group has failed. Specifically, an input signal is provided to the GOA circuit unit 24 of the first stage, and this input signal is passed to the GOA circuit unit 24 of the last stage and the GOA circuit unit 24 of the last stage in each GOA circuit unit group. The output signal is transmitted to the test line 25 through the connection line 26, and the signal carried by the test line 25 is the detection signal.
  • the present invention can detect whether there is a failed GOA circuit unit 24 in each GOA circuit unit group in the following two ways. Specifically, by detecting the output signal of the last stage GOA circuit unit 24 in each GOA circuit unit group, it can be known whether there is a failed GOA circuit unit 24 in the group. For example, if there is a problem with the output signal of the last GOA circuit unit 24 in the m-th GOA circuit unit group, it can be known that at least one GOA circuit unit 24 in the m-th GOA circuit unit group has failed.
  • the output signal of the GOA circuit unit 24 of the last stage in each GOA circuit unit group carried by the test line 25 is the same as that of the GOA circuit unit 24 of the last stage in each GOA circuit unit group.
  • the normal signal is compared to detect which GOA circuit unit group has a failed GOA circuit unit 24.
  • the m-group GOA output in a normal timing should be a low-level voltage signal, and the level of the m-group GOA output in the detection signal is Zero, thus determining that there is a failed GOA circuit unit 24 in the m-th GOA circuit unit group.
  • the output signal of the last GOA circuit unit 24 in the current GOA circuit unit group carried by the test line 25 is the last in the adjacent GOA circuit unit group adjacent to the current GOA circuit unit.
  • the output signals of the first-level GOA circuit unit 24 are compared to determine whether there is a failed GOA circuit unit 24 in the current GOA circuit unit group.
  • the current GOA circuit unit group is regarded as having a failed GOA circuit unit 24.
  • the interval between the output signal of the last stage GOA circuit unit 24 in the current GOA circuit unit group and the output signal of the last stage GOA circuit unit 24 in the adjacent GOA circuit unit group is equal to the predetermined interval (Or the phase difference between the two is equal to the predetermined phase difference), the GOA circuit unit 24 in the current GOA circuit unit group has not failed.
  • the output signal of the GOA of the m group is compared with the output signal of the GOA of the (m-1) group. If the timing difference between the two output signals (corresponding to the above-mentioned interval and phase difference) is equal to a predetermined When the value (such as kt0), it can be determined that the GOA circuit unit 24 in the m-th GOA circuit unit group has not failed, otherwise, it can be determined that at least one GOA circuit unit 24 in the m-th GOA circuit unit group has failed.
  • FIG. 5 is a schematic diagram showing the connection between the GOA circuit unit group and the test line 25 in the present invention. Only one GOA circuit unit group is shown in FIG. 5, and the remaining GOA circuit unit groups are connected in the same manner as the test line 25. As shown in FIG. 5, each GOA circuit unit 24 except the GOA circuit unit 24 of the last stage in the GOA circuit unit group is connected to the connection line 26 through a connection line 27. For example, the GOA circuit unit Gk + 3 is connected to the test line 25 through a connection line 26, and the GOA circuit unit Gk + 1 and Gk + 2 are connected to the test line 25 through a connection line 26 and a secondary connection line 26, respectively.
  • the test line 25 can further detect which GOA circuit unit 24 in the failed GOA circuit unit group fails after determining a failed GOA circuit unit group. Specifically, after detecting which GOA circuit unit group has failed, a method similar to the above-mentioned first or second method can be used to further detect which GOA circuit unit 24 in the group has failed to further locate the failure.
  • the GOA circuit unit 24 can further detect which GOA circuit unit 24 in the failed GOA circuit unit group fails after determining a failed GOA circuit unit group.
  • the present invention can detect whether a GOA circuit unit 24 fails within the GOA circuit unit group. Compared with the prior art, the present invention achieves more accurate GOA failure detection and improves GOA yield. After determining a failed GOA circuit unit group, the present invention can further detect which GOA circuit unit 24 in the failed GOA circuit unit group fails, and accurately locate the failed GOA circuit unit 24.
  • the display panel further includes a plurality of virtual GOA circuit areas 28, and the GOA circuit areas 28 are disposed corresponding to the GOA circuit unit groups.
  • the number of virtual GOA circuit areas 28 is the same as the number of GOA circuit unit groups.
  • the virtual GOA circuit area 28 has a circuit having the same function as the GOA circuit unit 24.
  • a circuit corresponding to one GOA circuit unit 24 is set in the virtual GOA circuit area 28.
  • the failed GOA circuit unit 24 is replaced with a circuit provided in the virtual GOA circuit area 28 corresponding to the group.
  • one of the failed GOA circuit units 24 is replaced with a circuit provided in the virtual GOA circuit area 28 corresponding to the group, and the remaining failed GOA
  • the circuit unit 24 is replaced with a circuit provided in the virtual GOA circuit area 28 of another group, that is, the failed GOA circuit unit 24 is replaced by a virtual GOA circuit area 28 located in a different group from the failed GOA circuit unit 24.
  • a circuit corresponding to one GOA circuit unit group is set in the virtual GOA circuit area 28.
  • a GOA circuit unit group includes three GOA circuit units 24, and the virtual GOA circuit area 28 is provided with circuits corresponding to the three GOA circuit units 24. In this way, when one or at least one failed GOA circuit unit 24 exists in a certain GOA circuit unit group, the GOA circuit unit group may be directly replaced with a virtual GOA circuit area 28 corresponding to the group.
  • the display panel further includes a repair line 29.
  • the repair line 29 is disposed between each GOA circuit unit 24 and each virtual GOA circuit area 28.
  • the repair line 29 is connected to a functioning dummy GOA circuit area 28 to replace the failed GOA circuit unit 24.
  • the circuits in the virtual GOA circuit area 28 and the lead lines of the GOA circuit unit 24 are disposed on the same layer, and the repair lines 29 are disposed on another layer of the lead lines, separated from each other by an insulating substance.
  • the repair line 29 can be connected to the circuit in the virtual GOA circuit area 28 and the GOA circuit unit 24 through the laser fusion technology, respectively.
  • the failed GOA circuit unit 24 can be disconnected from the scan line 21 by laser fusing technology, and the circuit in the virtual GOA circuit area 28 is connected to the k + 1th
  • the GOA circuit unit 24 of the first stage replaces the failure of the GOA circuit unit 24 of the failed k-th stage.
  • the failed GOA circuit units 24 of the current group can also be replaced with virtual GOA circuit areas 28 of different groups.
  • the GOA circuit unit 24 of the kth and k + 1th stages in the mth GOA circuit unit group fails, and the failed GOA circuit unit 24 of the kth and k + 1th stages is fused by using a laser fusing technology.
  • the repair line 29 carries a repair signal, which is transmitted to the active GOA circuit area 28 and adjusted according to the position of the failed GOA circuit unit 24. That is, the timing of the repair signal can be adjusted correspondingly according to the timing of the failed GOA circuit unit 24, so that the timing of the scanning signal transmitted to the scanning line 21 is restored to normal.
  • the display panel is provided with a plurality of virtual GOA circuit areas, which can replace the failed GOA circuit unit, and solves the problems that the display panel must be scrapped due to the failure of the GOA circuit unit, and the production cost cannot be effectively reduced.
  • the present invention can repair multi-level GOA circuit units 24 through different groups of virtual GOA circuit areas, which is a great advantage of the present invention.
  • the present invention is also applicable to the case where the GOA scans from top to bottom, as shown in FIG. 6.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

一种具GOA电路失效检测功能的显示面板。显示面板设置有若干个级联的GOA电路单元（24），这些GOA电路单元（24）被分成若干个GOA电路单元组，每个GOA电路单元组中的最末一级的GOA电路单元（24）与一测试线（25）连接。该显示面板能够以一个GOA电路单元组为单位，检测其内的GOA电路单元（24）是否失效，提高GOA失效检测的精确性。

Description

具GOA电路失效检测功能的显示面板 技术领域
本发明涉及一种显示技术，特别涉及一种具GOA电路失效检测功能的显示面板。
 背景技术
主动矩阵有机发光二极体（Active-matrix organic light-emitting diode, AMOLED）显示面板因其高对比度、广色域、低功耗、可折叠等特性，逐渐成为新一代显示技术。GOA（Gate Driver on Array，集成在阵列基板上的行扫描）电路是所述显示面板中的核心模块，其能否正常工作直接影响了所述显示面板的发光性能。
GOA技术是利用现有薄膜晶体管液晶显示器（Thin Film Transistor-Liquid Crystal Display，TFT-LCD）阵列制程将行扫描驱动电路制作在阵列基板上，实现逐行扫描驱动的一项技术。GOA技术能减少外接集成电路板（Integrated Circuit，IC）的焊接工序，可使显示面板更适合制作窄边框或无边框的显示产品。
图1显示一种现有的显示面板的示意图。所述显示面板包括一显示区（或称主动区（active area, AA））10以及一非显示区。所述显示面板并包括设置在所述显示面板左右两侧、所述非显示区上的若干个级联的GOA电路单元11，如GOA1、GOA2、…以及GOAn，以及一测试线12连接到最末一级的GOA电路单元11。GOA电路单元11与显示区10中的扫描线（未图示）相连接，用以提供扫描线稳定的扫描信号。
 技术问题
由于制程偶然性，机械碰撞或是柔性面板的弯折应力不匹配等，都可能造成GOA电路单元11的失效。在GOA电路的失效检测上，现有技术仅检测最后一级信号（即GOAn的输出信号），只能确定GOA电路是否失效异常，而不能确定是哪一级的GOA电路单元11失效，从而增大了GOA电路修复的困难。
 技术解决方案
本发明的目的在于提供一种显示面板，以提高GOA失效检测的精确性。
为实现上述目的，本发明一方面提供一种显示面板，所述显示面板包括一显示区和一非显示区，所述显示区包括由若干条扫描线和若干条数据线交错而成的若干个像素单元，所述显示面板包括：若干个级联的GOA电路单元，设置于所述非显示区上位于所述显示区的一侧，这些GOA电路单元连接到所述显示区中的那些数据线，这些GOA电路单元按照各级的次序，被分成若干个GOA电路单元组，每个GOA电路单元组包括相同数量的GOA电路单元；一测试线，其与每个GOA电路单元组中的最末一级的GOA电路单元通过一连接线连接，所述GOA电路单元组的数量与所述连接线的数量相同，所述测试线用于以一个GOA电路单元组为单位，检测其内的GOA电路单元是否失效；以及若干个虚拟GOA电路区，所述虚拟GOA电路区对应那些GOA电路单元组而设置，所述虚拟GOA电路区的数量与所述GOA电路单元组的数量相同，所述虚拟GOA电路区具有与所述GOA电路单元功能相同的电路，用以取代失效的GOA电路单元，所述失效的GOA电路单元被位于与所述失效的GOA电路单元不同之组别的所述虚拟GOA电路区取代。
本发明另一方面提供一种显示面板，所述显示面板包括一显示区和一非显示区，所述显示区包括由若干条扫描线和若干条数据线交错而成的若干个像素单元，所述显示面板包括：若干个级联的GOA电路单元，设置于所述非显示区上位于所述显示区的一侧，这些GOA电路单元连接到所述显示区中的那些数据线，这些GOA电路单元按照各级的次序，被分成若干个GOA电路单元组，每个GOA电路单元组包括相同数量的GOA电路单元；以及一测试线，其与每个GOA电路单元组中的最末一级的GOA电路单元通过一连接线连接，所述GOA电路单元组的数量与所述连接线的数量相同，所述测试线用于以一个GOA电路单元组为单位，检测其内的GOA电路单元是否失效。
根据本发明的实施例，每个GOA电路单元组中除最末一级的GOA电路单元之外的每个GOA电路单元通过一次连接线连接所述连接线，所述测试线用于在确定一失效的GOA电路单元组后，检测所述失效的GOA电路单元组中哪一个GOA电路单元失效。
根据本发明的实施例，所述测试线携载每个GOA电路单元组中最末一级的GOA电路单元的输出信号，其与每个GOA电路单元组中最末一级的GOA电路单元的正常信号对比，以检测出哪一个GOA电路单元组存在失效的GOA电路单元。
根据本发明的实施例，所述测试线携载当前GOA电路单元组中最末一级的GOA电路单元的输出信号，其与所述当前GOA电路单元相邻的一相邻GOA电路单元组中最末一级的GOA电路单元的输出信号对比，以决定所述当前GOA电路单元组是否存在失效的GOA电路单元。
根据本发明的实施例，当所述当前GOA电路单元组中最末一级的GOA电路单元的输出信号与所述相邻GOA电路单元组中最末一级的GOA电路单元的输出信号的间隔不等于一预定间隔时，所述当前GOA电路单元组被视为存在失效的GOA电路单元；以及当所述当前GOA电路单元组中最末一级的GOA电路单元的输出信号与所述相邻GOA电路单元组中最末一级的GOA电路单元的输出信号的间隔等于所述预定间隔时，所述当前GOA电路单元组中的GOA电路单元未失效。
根据本发明的实施例，所述显示面板更包括：若干个虚拟GOA电路区，所述虚拟GOA电路区对应那些GOA电路单元组而设置，所述虚拟GOA电路区的数量与所述GOA电路单元组的数量相同，所述虚拟GOA电路区具有与所述GOA电路单元功能相同的电路，用以取代失效的GOA电路单元。
根据本发明的实施例，所述失效的GOA电路单元被位于与所述失效的GOA电路单元不同之组别的所述虚拟GOA电路区取代。
根据本发明的实施例，所述显示面板更包括：一修复线，其与用以取代所述失效的GOA电路单元的一作用中的虚拟GOA电路区连接，所述修复线携载一修复信号，其传送到所述作用中的虚拟GOA电路区，并依所述失效的GOA电路单元的位置而进行调节。
根据本发明的实施例，每个GOA电路单元组包括m级的GOA电路单元，m为大于2的正整数。
 有益效果
本发明以一个GOA电路单元组为单位，检测其内的GOA电路单元是否失效，相较于现有技术，本发明实现了较为精确的GOA失效检测，提高GOA良率。本发明也能够进一步检测失效的GOA电路单元组中哪一个GOA电路单元失效，精确定位出失效的GOA电路单元。本发明并设置有虚拟GOA电路区来取代失效的GOA电路单元，解决了生产成本无法有效降低的问题。而且，本发明的一个优势是可通过不同组的虚拟GOA电路区进行多级的GOA电路单元的修复。
 附图说明
为让本发明的上述内容能更明显易懂，下文特举优选实施例，并配合所附图式，作详细说明如下：
图1显示一种现有的显示面板的示意图。
图2显示根据本发明的一种显示面板的示意图。
图3显示本发明中检测信号与正常时序的示意图。
图4显示本发明中相邻GOA的输出信号的示意图。
图5显示本发明中GOA电路单元组与测试线间的连接的示意图。
图6显示根据本发明的一种显示面板的示意图。
 本发明的实施方式
为使本发明的目的、技术方案及效果更加清楚、明确，以下参照附图并举实施例对本发明进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本发明，本发明说明书所使用的词语“实施例”意指用作实例、示例或例证，并不用于限定本发明。
图2显示根据本发明的显示面板的示意图。例如，所述显示面板为液晶显示面板（liquid crystal display panel）。本发明的显示面板包括一显示区（或称主动区（active area, AA））20以及一非显示区。显示区20包括若干条扫描线21和若干条数据线22，扫描线21用以提供扫描信号，数据线22用以提供数据信号。显示区20并包括用以显示影像的若干个像素单元23，其由扫描线21和数据线22交错形成。
所述显示面板还包括以GOA（Gate Driver on Array，集成在阵列基板上的行扫描）技术实现的若干个级联的GOA电路单元（G1, G2, …, Gn）24，这些GOA电路单元24设置在所述非显示区上，与显示区20中的扫描线21相连接。GOA电路单元24用以提供扫描线21稳定的扫描信号，以实现逐行扫描的驱动方式。GOA电路单元24可以仅设置于所述显示面板一侧，也可以设置于所述显示面板相对的两侧，以交错的方式提供扫描信号给扫描线21（如图2所示）。以下描述以设置于所述显示面板单一侧的结构来说明，本领域技术人员可以理解所述显示面板另一侧的结构采用相同或类似的方式工作。
这些GOA电路单元24按照各级的次序，被分成若干个GOA电路单元组，每个GOA电路单元组包括相同数量的GOA电路单元。例如，每三个GOA电路单元24被分成一组，也就是，第1级到第3级的GOA电路单元24被分成一组，第4级到第6级被分成一组，以此类推。于一较佳实施例中，每个GOA电路单元组包括m级的GOA电路单元24，m为大于2的正整数，也就是，每个GOA电路单元组包括至少三个GOA电路单元24。
所述显示面板还包括设置于所述非显示区的一测试线25。每个GOA电路单元组中的最末一级的GOA电路单元24通过一连接线26连接到测试线25。在上述的例子中，第一GOA电路单元组中最末一级的GOA电路单元24为第3级，第二GOA电路单元组中最末一级的GOA电路单元24为第6级，第3级的GOA电路单元24连接到测试线25，第6级的GOA电路单元24连接到测试线25，以此类推。GOA电路单元组的数量与连接线26的数量相同。
测试线25用于以一个GOA电路单元组为单位，检测其内的GOA电路单元24是否失效。具体来说，一输入信号被提供到第1级的GOA电路单元24，此输入信号传递到每个GOA电路单元组中的最末一级GOA电路单元24，最末一级GOA电路单元24的输出信号通过连接线26传递到测试线25，测试线25携载的信号即为检测信号。
本发明可通过以下两种方式检测每个GOA电路单元组中是否存在失效的GOA电路单元24。具体来说，通过检测每个GOA电路单元组中的最末一级GOA电路单元24的输出信号，可以知道该组是否存在失效的GOA电路单元24。例如，若第m个GOA电路单元组中最末一级GOA电路单元24的输出信号有问题，可以知道第m个GOA电路单元组中至少一个GOA电路单元24失效了。
第一种方式中，测试线25携载的每个GOA电路单元组中最末一级的GOA电路单元24的输出信号，与每个GOA电路单元组中最末一级的GOA电路单元24的正常信号对比，以检测出哪一个GOA电路单元组存在失效的GOA电路单元24。如图3所示，测试线25携载的检测信号与正常时序相比，正常时序中第m组GOA输出应为一低电平电压信号，而检测信号中第m组GOA输出的电平为零，因而确定第m个GOA电路单元组中存在失效的GOA电路单元24。
第二种方式，测试线25携载的当前GOA电路单元组中最末一级的GOA电路单元24的输出信号，与所述当前GOA电路单元相邻的一相邻GOA电路单元组中最末一级的GOA电路单元24的输出信号对比，以决定所述当前GOA电路单元组是否存在失效的GOA电路单元24。
具体来说，当所述当前GOA电路单元组中最末一级的GOA电路单元24的输出信号与所述相邻GOA电路单元组中最末一级的GOA电路单元24的输出信号的间隔不等于一预定间隔（或两者的相位差不等于一预定的相位差）时，所述当前GOA电路单元组被视为存在失效的GOA电路单元24。当所述当前GOA电路单元组中最末一级的GOA电路单元24的输出信号与所述相邻GOA电路单元组中最末一级的GOA电路单元24的输出信号的间隔等于所述预定间隔（或两者的相位差等于所述预定的相位差）时，所述当前GOA电路单元组中的GOA电路单元24未失效。
如图4所示，第m组GOA的输出信号与第(m-1)组GOA的输出信号对比，若两者之输出信号的时序之差（对应于上述之间隔和相位差）等于一预定值（如kt0）时，可以确定第m个GOA电路单元组中的GOA电路单元24未失效，否则，可以确定第m个GOA电路单元组中至少一个GOA电路单元24失效。
图5显示本发明中GOA电路单元组与测试线25间的连接的示意图。图5中仅显示一个GOA电路单元组，其余GOA电路单元组与测试线25的连接方式相同。如图5所示，GOA电路单元组中除最末一级的GOA电路单元24之外的每个GOA电路单元24通过一次连接线27连接所述连接线26。例如，GOA电路单元Gk+3通过连接线26与测试线25连接，GOA电路单元Gk+1和Gk+2各通过连接线26和一条次连接线26与测试线25连接。
测试线25能够在确定一失效的GOA电路单元组后，进一步检测失效的GOA电路单元组中哪一个GOA电路单元24失效。具体来说，在检测出哪一个GOA电路单元组失效后，可以利用与上述第一种或第二种方式类似的方式，进一步检测该组中哪一个GOA电路单元24失效，以进一步定位出失效的GOA电路单元24。
本发明中，若干个级联的GOA电路单元24被分成若干个GOA电路单元组，每个GOA电路单元组中的最末一级的GOA电路单元24与测试线25连接。本发明能够以一个GOA电路单元组为单位，检测其内的GOA电路单元24是否失效，相较于现有技术，本发明实现了较为精确的GOA失效检测，提高GOA良率。在确定一失效的GOA电路单元组后，本发明也能够进一步检测失效的GOA电路单元组中哪一个GOA电路单元24失效，精确定位出失效的GOA电路单元24。
请继续参阅图2，所述显示面板进一步包括若干个虚拟GOA电路区28，这些GOA电路区28对应那些GOA电路单元组而设置。虚拟GOA电路区28的数量与所述GOA电路单元组的数量相同。虚拟GOA电路区28具有与所述GOA电路单元24功能相同的电路。
于一实施例中，虚拟GOA电路区28中设置了一个对应一个GOA电路单元24的电路。当某一个GOA电路单元组中存在一个失效的GOA电路单元24时，所述失效的GOA电路单元24以设置于对应该组的虚拟GOA电路区28中的电路取代。当某一个GOA电路单元组中存在两个以上失效的GOA电路单元24时，其中一个失效的GOA电路单元24以设置于对应该组的虚拟GOA电路区28中的电路取代，其余的失效的GOA电路单元24以设置于其他组的虚拟GOA电路区28中的电路取代，亦即失效的GOA电路单元24被位于与失效的GOA电路单元24不同之组别的虚拟GOA电路区28取代。
于另一实施例中，虚拟GOA电路区28中设置了对应一个GOA电路单元组的电路。例如，一个GOA电路单元组包括了三个GOA电路单元24，则虚拟GOA电路区28设置有相应那三个GOA电路单元24的电路。这样，当某一个GOA电路单元组中存在一个或至少一个失效的GOA电路单元24时，所述GOA电路单元组可以直接以对应该组的虚拟GOA电路区28取代。
所述显示面板还包括一修复线29，修复线29设置于每个GOA电路单元24和每个虚拟GOA电路区28之间。修复线29与用以取代失效的GOA电路单元24的一作用中的虚拟GOA电路区28连接。举例来说，虚拟GOA电路区28中的电路与GOA电路单元24的引出线设置在同一层，修复线29设置于所述引出线的另一层，彼此以绝缘物质隔开。修复线29能够通过激光融通技术分别与虚拟GOA电路区28中的电路与GOA电路单元24接通。举例来说，若第k级的GOA电路单元24失效，可以通过激光熔断技术将失效的GOA电路单元24与扫描线21断开，同时将虚拟GOA电路区28中的电路连接到第k+1级的GOA电路单元24，以取代失效的第k级的GOA电路单元24失效。
通过修复线29，也可将当前组的失效的GOA电路单元24以不同组别的虚拟GOA电路区28取代。举例来说，第m个GOA电路单元组中的第k级和第k+1级的GOA电路单元24失效，利用激光熔断技术将失效的第k级和第k+1级的GOA电路单元24与扫描线21断开，同时通过修复线29将同一组的虚拟GOA电路区28中的电路（取代第k级）连接到下一组的虚拟GOA电路区28中的电路（取代第k+1级），再将下一组的虚拟GOA电路区28中的电路连接到第k+2级的GOA电路单元24。
修复线29携载一修复信号，其传送到作用中的虚拟GOA电路区28，并依失效的GOA电路单元24的位置而进行调节。也就是说，可以依照失效的GOA电路单元24的时序，对应调整修复信号的时序，以使传送到扫描线21的扫描信号的时序恢复正常。
本发明中，所述显示面板上设置有若干个虚拟GOA电路区，其可取代失效的GOA电路单元，解决显示面板因GOA电路单元失效而必须报废、生产成本无法有效降低的问题。而且，当所述显示面板出现多组多级的GOA电路单元24失效时，本发明可通过不同组的虚拟GOA电路区进行多级的GOA电路单元24的修复，是本发明的一大优势。
除图2之实施例中GOA由下至上正向扫描外，本发明同样适用于GOA由上至下反向扫描的情况，如图6所示。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。

Claims (16)

  1. 一种显示面板，所述显示面板包括一显示区和一非显示区，所述显示区包括由若干条扫描线和若干条数据线交错而成的若干个像素单元，所述显示面板包括：
    若干个级联的GOA电路单元，设置于所述非显示区上位于所述显示区的一侧，这些GOA电路单元连接到所述显示区中的那些数据线，这些GOA电路单元按照各级的次序，被分成若干个GOA电路单元组，每个GOA电路单元组包括相同数量的GOA电路单元；
    一测试线，其与每个GOA电路单元组中的最末一级的GOA电路单元通过一连接线连接，所述GOA电路单元组的数量与所述连接线的数量相同，所述测试线用于以一个GOA电路单元组为单位，检测其内的GOA电路单元是否失效；以及
    若干个虚拟GOA电路区，所述虚拟GOA电路区对应那些GOA电路单元组而设置，所述虚拟GOA电路区的数量与所述GOA电路单元组的数量相同，所述虚拟GOA电路区具有与所述GOA电路单元功能相同的电路，用以取代失效的GOA电路单元，所述失效的GOA电路单元被位于与所述失效的GOA电路单元不同之组别的所述虚拟GOA电路区取代。
  2. 根据权利要求1所述的显示面板，其中每个GOA电路单元组中除最末一级的GOA电路单元之外的每个GOA电路单元通过一次连接线连接所述连接线，所述测试线用于在确定一失效的GOA电路单元组后，检测所述失效的GOA电路单元组中哪一个GOA电路单元失效。
  3. 根据权利要求1所述的显示面板，其中所述测试线携载每个GOA电路单元组中最末一级的GOA电路单元的输出信号，其与每个GOA电路单元组中最末一级的GOA电路单元的正常信号对比，以检测出哪一个GOA电路单元组存在失效的GOA电路单元。
  4. 根据权利要求1所述的显示面板，其中所述测试线携载当前GOA电路单元组中最末一级的GOA电路单元的输出信号，其与所述当前GOA电路单元相邻的一相邻GOA电路单元组中最末一级的GOA电路单元的输出信号对比，以决定所述当前GOA电路单元组是否存在失效的GOA电路单元。
  5. 根据权利要求4所述的显示面板，其中当所述当前GOA电路单元组中最末一级的GOA电路单元的输出信号与所述相邻GOA电路单元组中最末一级的GOA电路单元的输出信号的间隔不等于一预定间隔时，所述当前GOA电路单元组被视为存在失效的GOA电路单元；以及当所述当前GOA电路单元组中最末一级的GOA电路单元的输出信号与所述相邻GOA电路单元组中最末一级的GOA电路单元的输出信号的间隔等于所述预定间隔时，所述当前GOA电路单元组中的GOA电路单元未失效。
  6. 根据权利要求1所述的显示面板，更包括：
    一修复线，其与用以取代所述失效的GOA电路单元的一作用中的虚拟GOA电路区连接，所述修复线携载一修复信号，其传送到所述作用中的虚拟GOA电路区，并依所述失效的GOA电路单元的位置而进行调节。
  7. 根据权利要求1所述的显示面板，其中每个GOA电路单元组包括m级的GOA电路单元，m为大于2的正整数。
  8. 一种显示面板，所述显示面板包括一显示区和一非显示区，所述显示区包括由若干条扫描线和若干条数据线交错而成的若干个像素单元，所述显示面板包括：
    若干个级联的GOA电路单元，设置于所述非显示区上位于所述显示区的一侧，这些GOA电路单元连接到所述显示区中的那些数据线，这些GOA电路单元按照各级的次序，被分成若干个GOA电路单元组，每个GOA电路单元组包括相同数量的GOA电路单元；以及
    一测试线，其与每个GOA电路单元组中的最末一级的GOA电路单元通过一连接线连接，所述GOA电路单元组的数量与所述连接线的数量相同，所述测试线用于以一个GOA电路单元组为单位，检测其内的GOA电路单元是否失效。
  9. 根据权利要求8所述的显示面板，其中每个GOA电路单元组中除最末一级的GOA电路单元之外的每个GOA电路单元通过一次连接线连接所述连接线，所述测试线用于在确定一失效的GOA电路单元组后，检测所述失效的GOA电路单元组中哪一个GOA电路单元失效。
  10. 根据权利要求8所述的显示面板，其中所述测试线携载每个GOA电路单元组中最末一级的GOA电路单元的输出信号，其与每个GOA电路单元组中最末一级的GOA电路单元的正常信号对比，以检测出哪一个GOA电路单元组存在失效的GOA电路单元。
  11. 根据权利要求8所述的显示面板，其中所述测试线携载当前GOA电路单元组中最末一级的GOA电路单元的输出信号，其与所述当前GOA电路单元相邻的一相邻GOA电路单元组中最末一级的GOA电路单元的输出信号对比，以决定所述当前GOA电路单元组是否存在失效的GOA电路单元。
  12. 根据权利要求11所述的显示面板，其中当所述当前GOA电路单元组中最末一级的GOA电路单元的输出信号与所述相邻GOA电路单元组中最末一级的GOA电路单元的输出信号的间隔不等于一预定间隔时，所述当前GOA电路单元组被视为存在失效的GOA电路单元；以及当所述当前GOA电路单元组中最末一级的GOA电路单元的输出信号与所述相邻GOA电路单元组中最末一级的GOA电路单元的输出信号的间隔等于所述预定间隔时，所述当前GOA电路单元组中的GOA电路单元未失效。
  13. 根据权利要求8所述的显示面板，更包括：
    若干个虚拟GOA电路区，所述虚拟GOA电路区对应那些GOA电路单元组而设置，所述虚拟GOA电路区的数量与所述GOA电路单元组的数量相同，所述虚拟GOA电路区具有与所述GOA电路单元功能相同的电路，用以取代失效的GOA电路单元。
  14. 根据权利要求13所述的显示面板，其中所述失效的GOA电路单元被位于与所述失效的GOA电路单元不同之组别的所述虚拟GOA电路区取代。
  15. 根据权利要求13所述的显示面板，更包括：
    一修复线，其与用以取代所述失效的GOA电路单元的一作用中的虚拟GOA电路区连接，所述修复线携载一修复信号，其传送到所述作用中的虚拟GOA电路区，并依所述失效的GOA电路单元的位置而进行调节。
  16. 根据权利要求8所述的显示面板，其中每个GOA电路单元组包括m级的GOA电路单元，m为大于2的正整数。
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