WO2019015056A1 - 显示面板的测试电路及显示装置 - Google Patents

显示面板的测试电路及显示装置 Download PDF

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Publication number
WO2019015056A1
WO2019015056A1 PCT/CN2017/101166 CN2017101166W WO2019015056A1 WO 2019015056 A1 WO2019015056 A1 WO 2019015056A1 CN 2017101166 W CN2017101166 W CN 2017101166W WO 2019015056 A1 WO2019015056 A1 WO 2019015056A1
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WIPO (PCT)
Prior art keywords
signal lines
shorting bar
display panel
control signal
switch
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PCT/CN2017/101166
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English (en)
French (fr)
Inventor
吕晓文
Original Assignee
深圳市华星光电半导体显示技术有限公司
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Application filed by 深圳市华星光电半导体显示技术有限公司 filed Critical 深圳市华星光电半导体显示技术有限公司
Priority to EP17918313.2A priority Critical patent/EP3657477A4/en
Priority to US15/576,549 priority patent/US10416483B2/en
Priority to JP2020501534A priority patent/JP6977141B2/ja
Priority to KR1020207004742A priority patent/KR20200028459A/ko
Publication of WO2019015056A1 publication Critical patent/WO2019015056A1/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
    • G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/1306—Details
    • G02F1/1309—Repairing; Testing
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136254—Checking; Testing
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136286—Wiring, e.g. gate line, drain line
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
    • H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body
    • H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
    • H01L27/124—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits
    • 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
    • G09G2300/0421—Structural details of the set of electrodes
    • G09G2300/0426—Layout of electrodes and connections
    • 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 present invention relates to the field of display technologies, and in particular, to a test circuit and a display device for a display panel.
  • Thin film transistor liquid crystal display (Thin Film Transistor liquid crystal Display, TFT-LCD) consists of a color filter substrate (Color Filter, CF), a thin film transistor array substrate (Thin Film Transistor) Array Substrate, TFT Array Substrate) and a liquid crystal layer disposed between the two substrates (Liquid Crystal) Layer).
  • the preparation of the TFT-LCD includes an array substrate process, a color filter substrate process, and a cell process of the array substrate and the color filter substrate.
  • the panel function test is performed when the Cell process is performed (Cell). Test).
  • Cell Cell process is performed (Cell). Test).
  • the defective products in the three processes of Array, CF, and Cell are detected by the Cell Test, and the defective products are removed.
  • the Cell Test process generally uses a shorting bar (shorting The lighting test is carried out in the form of bar), however, laser cutting of the shorting bar is required after the test, which increases the cost of TFT-LCD preparation.
  • An embodiment of the present invention provides a test circuit for a display panel, including at least one shorting bar, a plurality of signal lines, and a switch module connecting the at least one shorting bar and the plurality of signal lines;
  • the switch module connects the plurality of signal lines to its corresponding shorting bar when testing the display panel; and disconnects the plurality of signal lines and the at least one piece when testing the display panel Connection of the shorting bar;
  • the switch module includes a control signal line and a plurality of switch tubes
  • the control end of any of the switch tubes is connected to the control signal line, the output end is connected to its corresponding shorting bar, and the input end is connected to a signal line corresponding to the shorting bar;
  • control signal line transmits the first control signal
  • all the switches are closed, and the connection of the plurality of signal lines to the at least one shorting bar is broken;
  • the switch tube comprises a thin film transistor and/or a triode.
  • the thin film transistor when a high level signal is transmitted on the control signal line, the thin film transistor is turned on;
  • the thin film transistor is turned off when a low level signal is transmitted on the control signal line.
  • the plurality of signal lines include a plurality of R pixel signal lines, a plurality of G pixel signal lines, and a plurality of B pixel signal lines
  • the plurality of switch tubes include a first switch tube and a second switch tube.
  • a third switching tube the at least one shorting bar comprising a first shorting bar, a second shorting bar and a third shorting bar;
  • the input end of the first switch tube is connected to the plurality of R pixel signal lines, and the output end is connected to the first short circuit bar;
  • the input end of the second switch tube is connected to the plurality of G pixel signal lines, and the output end is connected to the second short circuit bar;
  • the input end of the third switch tube is connected to the plurality of B pixel signal lines, and the output end is connected to the third short circuit bar.
  • the plurality of signal lines comprise a plurality of VSS signal lines.
  • An embodiment of the present invention provides a test circuit for a display panel, including at least one shorting bar, a plurality of signal lines, and a switch module connecting the at least one shorting bar and the plurality of signal lines;
  • the switch module connects the plurality of signal lines to its corresponding shorting bar when testing the display panel; and disconnects the plurality of signal lines and the at least one piece when testing the display panel The connection of the shorting bar.
  • the switch module includes a control signal line and a plurality of switch tubes
  • the control end of any of the switch tubes is connected to the control signal line, the output end is connected to its corresponding shorting bar, and the input end is connected to a signal line corresponding to the shorting bar;
  • control signal line transmits the first control signal
  • all the switches are closed, and the connection of the plurality of signal lines to the at least one shorting bar is broken;
  • control signal line transmits the second control signal
  • all of the switch tubes are turned on, and the plurality of signal lines are connected to their corresponding shorting bars.
  • the switching transistor comprises a thin film transistor.
  • the thin film transistor when a high level signal is transmitted on the control signal line, the thin film transistor is turned on;
  • the thin film transistor is turned off when a low level signal is transmitted on the control signal line.
  • the switch tube comprises a triode.
  • the plurality of signal lines include a plurality of R pixel signal lines, a plurality of G pixel signal lines, and a plurality of B pixel signal lines
  • the plurality of switch tubes include a first switch tube and a second switch tube.
  • a third switching tube the at least one shorting bar comprising a first shorting bar, a second shorting bar and a third shorting bar;
  • the input end of the first switch tube is connected to the plurality of R pixel signal lines, and the output end is connected to the first short circuit bar;
  • the input end of the second switch tube is connected to the plurality of G pixel signal lines, and the output end is connected to the second short circuit bar;
  • the input end of the third switch tube is connected to the plurality of B pixel signal lines, and the output end is connected to the third short circuit bar.
  • the plurality of signal lines comprise a plurality of VSS signal lines.
  • the embodiment of the invention further provides a display device, comprising a display panel and a test circuit of the display panel;
  • the test circuit of the display panel includes at least one shorting bar, a plurality of signal lines, and a switch module connecting the at least one shorting bar and the plurality of signal lines;
  • the switch module connects the plurality of signal lines to its corresponding shorting bar when testing the display panel; and disconnects the plurality of signal lines and the at least one piece when testing the display panel The connection of the shorting bar.
  • the switch module includes a control signal line and a plurality of switch tubes
  • the control end of any of the switch tubes is connected to the control signal line, the output end is connected to its corresponding shorting bar, and the input end is connected to a signal line corresponding to the shorting bar;
  • control signal line transmits the first control signal
  • all the switches are closed, and the connection of the plurality of signal lines to the at least one shorting bar is broken;
  • control signal line transmits the second control signal
  • all of the switch tubes are turned on, and the plurality of signal lines are connected to their corresponding shorting bars.
  • the switching transistor comprises a thin film transistor.
  • the thin film transistor when a high level signal is transmitted on the control signal line, the thin film transistor is turned on;
  • the thin film transistor is turned off when a low level signal is transmitted on the control signal line.
  • the switch tube comprises a triode.
  • the plurality of signal lines include a plurality of R pixel signal lines, a plurality of G pixel signal lines, and a plurality of B pixel signal lines
  • the plurality of switch tubes include a first switch tube and a second switch tube.
  • a third switching tube the at least one shorting bar comprising a first shorting bar, a second shorting bar and a third shorting bar;
  • the input end of the first switch tube is connected to the plurality of R pixel signal lines, and the output end is connected to the first short circuit bar;
  • the input end of the second switch tube is connected to the plurality of G pixel signal lines, and the output end is connected to the second short circuit bar;
  • the input end of the third switch tube is connected to the plurality of B pixel signal lines, and the output end is connected to the third short circuit bar.
  • the plurality of signal lines comprise a plurality of VSS signal lines.
  • the test circuit and the display device of the display panel of the embodiment of the invention are provided with a switch module between the shorting bar and the signal line, and the short circuit bar is connected to the signal line during the panel test, and the connection is disconnected after the panel test ends, thereby reducing the connection.
  • the manufacturing cost of the display device is provided with a switch module between the shorting bar and the signal line, and the short circuit bar is connected to the signal line during the panel test, and the connection is disconnected after the panel test ends, thereby reducing the connection.
  • FIG. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of a test circuit of a display panel according to an embodiment of the present invention.
  • FIG. 3 is another schematic structural diagram of a test circuit of a display panel according to an embodiment of the present invention.
  • references to "an embodiment” herein mean that a particular feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of the invention.
  • the appearances of the phrases in various places in the specification are not necessarily referring to the same embodiments, and are not exclusive or alternative embodiments that are mutually exclusive. Those skilled in the art will understand and implicitly understand that the embodiments described herein can be combined with other embodiments.
  • FIG. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention.
  • the display device 1 includes a display panel 1000 and a test circuit 1000 of the display panel.
  • FIG. 2 is a schematic structural diagram of a test circuit of a display panel according to an embodiment of the present invention.
  • the test circuit 1000 of the display panel includes at least one shorting bar 100, a plurality of signal lines 200, and a switching module 300 that connects the at least one shorting bar 100 and the plurality of signal lines 200.
  • the switch module 300 when testing the display panel 2000, connects the plurality of signal lines 200 to their corresponding shorting bars 100. When the test display panel 2000 is finished, the connection of the plurality of signal lines 200 to the at least one shorting bar 100 is disconnected.
  • the elliptical frame shows the connection relationship between a shorting bar 100 and two signal lines 200, wherein the dotted frame portion is a part of the switching module 300. It can be seen from the dotted frame portion that a switch is disposed between the shorting bar 100 and its corresponding signal line 200.
  • the shorting bar 200 receives the signals of the two signal lines 200, and the display panel can be displayed according to the signal. 2000 for testing. After the test is finished, the switch can be turned off, and the shorting bar 200 no longer receives the signal of the signal line 200, that is, the interference of the signal on the display panel 2000 is eliminated.
  • the switch module 300 includes a control signal line 301 and a plurality of switch tubes 302.
  • the control signal line 301 is used to transmit a control signal.
  • the switch 302 has a control end, an input end and an output end, wherein the control end is configured to receive the control signal to perform an opening and closing operation under the control of the control signal.
  • control end of any of the switch tubes 302 is connected to the control signal line 301, the output end is connected to its corresponding shorting bar 100, and the input end is connected to the signal line 200 corresponding to the shorting bar 100.
  • control signal line 301 transmits the first control signal
  • all of the switch tubes 302 are turned off, and the connection of the plurality of signal lines 200 to the at least one shorting bar 100 is broken.
  • control signal line 301 transmits the second control signal
  • all of the switch tubes 302 are turned on, and the plurality of signal lines 200 are connected to their corresponding shorting bars 100.
  • the switch transistor 302 can be a thin film transistor.
  • the gate of the thin film transistor is connected to the control signal line 301, the source is connected to the plurality of signal lines 200, and the drain is connected to a shorting bar 100.
  • a high level signal is transmitted on the control signal line 301, and the thin film transistor is turned on to connect the plurality of signal lines 200 to their corresponding shorting bars 100.
  • a low level signal is transmitted on the control signal line 301, and the thin film transistor is turned off to avoid interference with the display panel 2000.
  • the switch tube 302 can be a triode.
  • the base of the triode is connected to the control signal line 301, and the collector and the emitter are respectively connected to the plurality of signal lines 200 and one shorting bar 100.
  • the plurality of signal lines 200 include a plurality of R pixel signal lines, a plurality of G pixel signal lines, and a plurality of B pixel signal lines
  • the plurality of switch tubes 302 include a first switch tube and a second The switch tube and the third switch tube
  • the at least one shorting bar 100 includes a first shorting bar, a second shorting bar and a third shorting bar.
  • the input end of the first switch tube is connected to the plurality of R pixel signal lines, and the output end is connected to the first short circuit bar;
  • the input end of the second switch tube is connected to the plurality of G pixel signal lines, and the output end is Connecting the second shorting bar;
  • the input end of the third switching tube is connected to the plurality of B pixel signal lines, and the output end is connected to the third shorting bar.
  • the control signal line 301 transmits a second control signal to connect the pixel signal line to its corresponding shorting bar.
  • the R pixel signal line is connected to the first shorting bar through the first switching tube, and a detection signal is input through the detection signal point of the first shorting bar, which can illuminate red on the display panel 2000, and detect whether there is an abnormal pixel in the red color. Or the phenomenon of uneven brightness.
  • the plurality of signal lines 200 may further include a plurality of VSS signal lines and the like.
  • the connection relationship between the plurality of signal lines 200 and the switch tube 302 and the shorting bar 100 is referred to the pixel signal line and the switch tube 302 and the shorting bar 100. The connection relationship will not be described here.

Abstract

一种显示面板（2000）的测试电路（1000）及显示装置（1），显示面板（2000）的测试电路（1000）包括：至少一条短路棒（100）、多条信号线（200）以及连接至少一条短路棒（100）、多条信号线（200）的开关模块（300）；开关模块（300），在测试显示面板（2000）时，将多条信号线（200）连接至其对应的短路棒（100）；在结束测试显示面板（2000）时，断开多条信号线（200）与至少一条短路棒（100）的连接。

Description

显示面板的测试电路及显示装置 技术领域
本发明涉及显示技术领域，特别是涉及一种显示面板的测试电路及显示装置。
 背景技术
薄膜晶体管液晶显示器（Thin Film Transistor liquid crystal display, TFT-LCD）由一彩色滤光片基板(Color Filter，CF)、一薄膜晶体管阵列基板(Thin Film Transistor Array Substrate，TFT Array Substrate) 以及一配置于两基板间的液晶层(Liquid Crystal Layer)所构成。
TFT-LCD的制备包括阵列基板工序、彩膜基板工序以及阵列基板与彩膜基板的对盒(Cell)工序，一般在进行Cell工序时要进行面板功能测试(Cell Test)。通过Cell Test检测面板在Array、CF、Cell这三个工序中出现的不良情况，把不良的产品去除。
Cell Test工序一般采用短路棒（shorting bar）的形式进行点灯测试，然而测试之后需要对短路棒进行激光切割，增加了TFT-LCD制备的成本。
 技术问题
本发明的目的在于提供一种显示面板的测试电路及显示装置，可以降低显示装置的制备成本。
 技术解决方案
本发明实施例提供了一种显示面板的测试电路，其包括至少一条短路棒、多条信号线以及连接所述至少一条短路棒、所述多条信号线的开关模块；
所述开关模块，在测试所述显示面板时，将所述多条信号线连接至其对应的短路棒；在结束测试所述显示面板时，断开所述多条信号线与所述至少一条短路棒的连接；
其中，所述开关模块包括一控制信号线和多个开关管；
任一开关管的控制端与所述控制信号线连接，输出端与其对应的短路棒连接，输入端与所述短路棒对应的信号线连接；
当所述控制信号线传输第一控制信号时，全部开关管关闭，所述多条信号线与所述至少一条短路棒的连接断开；
当所述控制信号线传输第二控制信号时，全部开关管开启，所述多条信号线连接至其对应的短路棒；
其中，所述开关管包括薄膜晶体管和/或三极管。
在一些实施例中，当所述控制信号线上传输高电平信号时，所述薄膜晶体管开启；
当所述控制信号线上传输低电平信号时，所述薄膜晶体管关闭。
在一些实施例中，所述多条信号线包括多条R像素信号线、多条G像素信号线和多条B像素信号线，所述多个开关管包括第一开关管、第二开关管和第三开关管，所述至少一条短路棒包括第一短路棒、第二短路棒和第三短路棒；
所述第一开关管的输入端连接所述多条R像素信号线，输出端连接所述第一短路棒；
所述第二开关管的输入端连接所述多条G像素信号线，输出端连接所述第二短路棒；
所述第三开关管的输入端连接所述多条B像素信号线，输出端连接所述第三短路棒。
在一些实施例中，所述多条信号线包括多条VSS信号线。
本发明实施例提供一种显示面板的测试电路，包括至少一条短路棒、多条信号线以及连接所述至少一条短路棒、所述多条信号线的开关模块；
所述开关模块，在测试所述显示面板时，将所述多条信号线连接至其对应的短路棒；在结束测试所述显示面板时，断开所述多条信号线与所述至少一条短路棒的连接。
在一些实施例中，所述开关模块包括一控制信号线和多个开关管；
任一开关管的控制端与所述控制信号线连接，输出端与其对应的短路棒连接，输入端与所述短路棒对应的信号线连接；
当所述控制信号线传输第一控制信号时，全部开关管关闭，所述多条信号线与所述至少一条短路棒的连接断开；
当所述控制信号线传输第二控制信号时，全部开关管开启，所述多条信号线连接至其对应的短路棒。
在一些实施例中，所述开关管包括薄膜晶体管。
在一些实施例中，当所述控制信号线上传输高电平信号时，所述薄膜晶体管开启；
当所述控制信号线上传输低电平信号时，所述薄膜晶体管关闭。
在一些实施例中，所述开关管包括三极管。
在一些实施例中，所述多条信号线包括多条R像素信号线、多条G像素信号线和多条B像素信号线，所述多个开关管包括第一开关管、第二开关管和第三开关管，所述至少一条短路棒包括第一短路棒、第二短路棒和第三短路棒；
所述第一开关管的输入端连接所述多条R像素信号线，输出端连接所述第一短路棒；
所述第二开关管的输入端连接所述多条G像素信号线，输出端连接所述第二短路棒；
所述第三开关管的输入端连接所述多条B像素信号线，输出端连接所述第三短路棒。
在一些实施例中，所述多条信号线包括多条VSS信号线。
本发明实施例中还提供一种显示装置，包括显示面板和显示面板的测试电路；
所述显示面板的测试电路包括至少一条短路棒、多条信号线以及连接所述至少一条短路棒、所述多条信号线的开关模块；
所述开关模块，在测试所述显示面板时，将所述多条信号线连接至其对应的短路棒；在结束测试所述显示面板时，断开所述多条信号线与所述至少一条短路棒的连接。
在一些实施例中，所述开关模块包括一控制信号线和多个开关管；
任一开关管的控制端与所述控制信号线连接，输出端与其对应的短路棒连接，输入端与所述短路棒对应的信号线连接；
当所述控制信号线传输第一控制信号时，全部开关管关闭，所述多条信号线与所述至少一条短路棒的连接断开；
当所述控制信号线传输第二控制信号时，全部开关管开启，所述多条信号线连接至其对应的短路棒。
在一些实施例中，所述开关管包括薄膜晶体管。
在一些实施例中，当所述控制信号线上传输高电平信号时，所述薄膜晶体管开启；
当所述控制信号线上传输低电平信号时，所述薄膜晶体管关闭。
在一些实施例中，所述开关管包括三极管。
在一些实施例中，所述多条信号线包括多条R像素信号线、多条G像素信号线和多条B像素信号线，所述多个开关管包括第一开关管、第二开关管和第三开关管，所述至少一条短路棒包括第一短路棒、第二短路棒和第三短路棒；
所述第一开关管的输入端连接所述多条R像素信号线，输出端连接所述第一短路棒；
所述第二开关管的输入端连接所述多条G像素信号线，输出端连接所述第二短路棒；
所述第三开关管的输入端连接所述多条B像素信号线，输出端连接所述第三短路棒。
在一些实施例中，所述多条信号线包括多条VSS信号线。
 有益效果
本发明实施例的显示面板的测试电路及显示装置通过在短路棒和信号线之间设置开关模块，在面板测试时控制短路棒与信号线连接，在面板测试结束后断开连接，从而降低了显示装置的制备成本。
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：
 附图说明
图1为本发明实施例提供的显示装置的结构示意图。
图2为本发明实施例提供的显示面板的测试电路的结构示意图。
图3为本发明实施例提供的显示面板的测试电路的另一结构示意图。
 本发明的最佳实施方式
以下各实施例的说明是参考附加的图式，用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语，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发明，而非用以限制本发明。
在图中，结构相似的单元是以相同标号表示。
在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本发明的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
请参照图1，图1为本发明实施例提供的显示装置的结构示意图。显示装置1包括显示面板2000和显示面板的测试电路1000。
请参照图2，图2为本发明实施例提供的显示面板的测试电路的结构示意图。显示面板的测试电路1000包括至少一条短路棒100、多条信号线200以及连接所述至少一条短路棒100、所述多条信号线200的开关模块300。
开关模块300，在测试显示面板2000时，将多条信号线200连接至其对应的短路棒100。在结束测试显示面板2000时，断开多条信号线200与至少一条短路棒100的连接。
如图2所示，椭圆框显示了一条短路棒100与两条信号线200之间的连接关系，其中虚线框部分为开关模块300的一部分。由虚线框部分可知，短路棒100与其对应的信号线200之间设有一开关，当开关处于导通状态时，短路棒200接收两路信号线200的信号，此时可以根据该信号对显示面板2000进行测试。在结束测试后，可以将开关断开，此时短路棒200不再接收信号线200的信号，即杜绝了该信号对显示面板2000的干扰。
在一些实施例中，如图3所示，开关模块300包括一控制信号线301和多个开关管302。该控制信号线301用于传输控制信号。该开关管302具有控制端、输入端和输出端，其中该控制端用于接收上述控制信号，从而在控制信号的控制下进行开启和关闭操作。
如图3所示，任一开关管302的控制端与控制信号线301连接，输出端与其对应的短路棒100连接，输入端与所述短路棒100对应的信号线200连接。
当控制信号线301传输第一控制信号时，全部开关管302关闭，所述多条信号线200与所述至少一条短路棒100的连接断开。
当控制信号线301传输第二控制信号时，全部开关管302开启，所述多条信号线200连接至其对应的短路棒100。
在一些实施例中，所述开关管302可以为薄膜晶体管。其中薄膜晶体管的栅极连接控制信号线301，源极连接多条信号线200，漏极连接一条短路棒100。当对显示面板2000进行测试时，在控制信号线301上传输高电平信号，开启薄膜晶体管，使多条信号线200连接至其对应的短路棒100。当结束对显示面板2000的测试后，在控制信号线301上传输低电平信号，关闭薄膜晶体管，避免对显示面板2000造成干扰。
在一些实施例中，所述开关管302可以为三极管。三极管的基极连接控制信号线301，集电极和发射极分别连接多条信号线200、一条短路棒100。
在一些实施例中，所述多条信号线200包括多条R像素信号线、多条G像素信号线和多条B像素信号线，所述多个开关管302包括第一开关管、第二开关管和第三开关管，所述至少一条短路棒100包括第一短路棒、第二短路棒和第三短路棒.
其中，第一开关管的输入端连接所述多条R像素信号线，输出端连接所述第一短路棒；所述第二开关管的输入端连接所述多条G像素信号线，输出端连接所述第二短路棒；所述第三开关管的输入端连接所述多条B像素信号线，输出端连接所述第三短路棒。
当进行显示面板2000检测时，控制信号线301传输第二控制信号，使像素信号线连接至其对应的短路棒。比如，R像素信号线通过第一开关管连接第一短路棒，通过第一短路棒的检测信号点输入一检测信号，可以在显示面板2000上点亮红色，在红色下检测是否存在异常像点或者亮度不均匀的现象。
在一些实施例中，所述多条信号线200还可以包括多条VSS信号线等，其与开关管302、短路棒100之间的连接关系参照上述像素信号线与开关管302、短路棒100的连接关系，在此不再赘述。
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，在不脱离本发明的精神和范围内，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 (18)

  1. 一种显示面板的测试电路，其包括至少一条短路棒、多条信号线以及连接所述至少一条短路棒、所述多条信号线的开关模块；
    所述开关模块，在测试所述显示面板时，将所述多条信号线连接至其对应的短路棒；在结束测试所述显示面板时，断开所述多条信号线与所述至少一条短路棒的连接；
    其中，所述开关模块包括一控制信号线和多个开关管；
    任一开关管的控制端与所述控制信号线连接，输出端与其对应的短路棒连接，输入端与所述短路棒对应的信号线连接；
    当所述控制信号线传输第一控制信号时，全部开关管关闭，所述多条信号线与所述至少一条短路棒的连接断开；
    当所述控制信号线传输第二控制信号时，全部开关管开启，所述多条信号线连接至其对应的短路棒；
    其中，所述开关管包括薄膜晶体管和/或三极管。
  2. 根据权利要求1所述的显示面板的测试电路，其中，
    当所述控制信号线上传输高电平信号时，所述薄膜晶体管开启；
    当所述控制信号线上传输低电平信号时，所述薄膜晶体管关闭。
  3. 根据权利要求1所述的显示面板的测试电路，其中，所述多条信号线包括多条R像素信号线、多条G像素信号线和多条B像素信号线，所述多个开关管包括第一开关管、第二开关管和第三开关管，所述至少一条短路棒包括第一短路棒、第二短路棒和第三短路棒；
    所述第一开关管的输入端连接所述多条R像素信号线，输出端连接所述第一短路棒；
    所述第二开关管的输入端连接所述多条G像素信号线，输出端连接所述第二短路棒；
    所述第三开关管的输入端连接所述多条B像素信号线，输出端连接所述第三短路棒。
  4. 根据权利要求1所述的显示面板的测试电路，其中，所述多条信号线包括多条VSS信号线。
  5. 一种显示面板的测试电路，其包括至少一条短路棒、多条信号线以及连接所述至少一条短路棒、所述多条信号线的开关模块；
    所述开关模块，在测试所述显示面板时，将所述多条信号线连接至其对应的短路棒；在结束测试所述显示面板时，断开所述多条信号线与所述至少一条短路棒的连接。
  6. 根据权利要求5所述的显示面板的测试电路，其中，所述开关模块包括一控制信号线和多个开关管；
    任一开关管的控制端与所述控制信号线连接，输出端与其对应的短路棒连接，输入端与所述短路棒对应的信号线连接；
    当所述控制信号线传输第一控制信号时，全部开关管关闭，所述多条信号线与所述至少一条短路棒的连接断开；
    当所述控制信号线传输第二控制信号时，全部开关管开启，所述多条信号线连接至其对应的短路棒。
  7. 根据权利要求6所述的显示面板的测试电路，其中，所述开关管包括薄膜晶体管。
  8. 根据权利要求7所述的显示面板的测试电路，其中，
    当所述控制信号线上传输高电平信号时，所述薄膜晶体管开启；
    当所述控制信号线上传输低电平信号时，所述薄膜晶体管关闭。
  9. 根据权利要求6所述的显示面板的测试电路，其中，所述开关管包括三极管。
  10. 根据权利要求6所述的显示面板的测试电路，其中，所述多条信号线包括多条R像素信号线、多条G像素信号线和多条B像素信号线，所述多个开关管包括第一开关管、第二开关管和第三开关管，所述至少一条短路棒包括第一短路棒、第二短路棒和第三短路棒；
    所述第一开关管的输入端连接所述多条R像素信号线，输出端连接所述第一短路棒；
    所述第二开关管的输入端连接所述多条G像素信号线，输出端连接所述第二短路棒；
    所述第三开关管的输入端连接所述多条B像素信号线，输出端连接所述第三短路棒。
  11. 根据权利要求5所述的显示面板的测试电路，其中，所述多条信号线包括多条VSS信号线。
  12. 一种显示装置，其包括显示面板和显示面板的测试电路；
    所述显示面板的测试电路包括至少一条短路棒、多条信号线以及连接所述至少一条短路棒、所述多条信号线的开关模块；
    所述开关模块，在测试所述显示面板时，将所述多条信号线连接至其对应的短路棒；在结束测试所述显示面板时，断开所述多条信号线与所述至少一条短路棒的连接。
  13. 根据权利要求12所述的显示装置，其中，所述开关模块包括一控制信号线和多个开关管；
    任一开关管的控制端与所述控制信号线连接，输出端与其对应的短路棒连接，输入端与所述短路棒对应的信号线连接；
    当所述控制信号线传输第一控制信号时，全部开关管关闭，所述多条信号线与所述至少一条短路棒的连接断开；
    当所述控制信号线传输第二控制信号时，全部开关管开启，所述多条信号线连接至其对应的短路棒。
  14. 根据权利要求13所述的显示装置，其中，所述开关管包括薄膜晶体管。
  15. 根据权利要求14所述的显示装置，其中，
    当所述控制信号线上传输高电平信号时，所述薄膜晶体管开启；
    当所述控制信号线上传输低电平信号时，所述薄膜晶体管关闭。
  16. 根据权利要求13所述的显示装置，其中，所述开关管包括三极管。
  17. 根据权利要求13所述的显示装置，其中，所述多条信号线包括多条R像素信号线、多条G像素信号线和多条B像素信号线，所述多个开关管包括第一开关管、第二开关管和第三开关管，所述至少一条短路棒包括第一短路棒、第二短路棒和第三短路棒；
    所述第一开关管的输入端连接所述多条R像素信号线，输出端连接所述第一短路棒；
    所述第二开关管的输入端连接所述多条G像素信号线，输出端连接所述第二短路棒；
    所述第三开关管的输入端连接所述多条B像素信号线，输出端连接所述第三短路棒。
  18. 根据权利要求12所述的显示装置，其中，所述多条信号线包括多条VSS信号线。
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