WO2013174046A1 - 液晶显示面板 - Google Patents

液晶显示面板 Download PDF

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Publication number
WO2013174046A1
WO2013174046A1 PCT/CN2012/076687 CN2012076687W WO2013174046A1 WO 2013174046 A1 WO2013174046 A1 WO 2013174046A1 CN 2012076687 W CN2012076687 W CN 2012076687W WO 2013174046 A1 WO2013174046 A1 WO 2013174046A1
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WO
WIPO (PCT)
Prior art keywords
test
liquid crystal
line
crystal display
display panel
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PCT/CN2012/076687
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English (en)
French (fr)
Inventor
李冬
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深圳市华星光电技术有限公司
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Application filed by 深圳市华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Priority to US13/583,931 priority Critical patent/US20150077681A1/en
Publication of WO2013174046A1 publication Critical patent/WO2013174046A1/zh

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    • 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
    • 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
    • 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
    • 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 liquid crystal display panels, and more particularly to a test circuit for a liquid crystal display panel.
  • Liquid crystal display (Liquid Crystal Display, LCD) has been widely used in various electronic products, and liquid crystal display panels are important components of liquid crystal displays.
  • the liquid crystal display panel manufacturer After the liquid crystal display panel is manufactured, the liquid crystal display panel manufacturer generally tests the liquid crystal display panel to find the problem product as early as possible to reduce the waste of subsequent processes.
  • a test line is usually set on an array substrate of a liquid crystal display panel (Shorting) Bar) 210 is connected to the signal line 220 of the liquid crystal display panel, as shown in FIG.
  • the test signal is input from the test line to the signal line to detect that the signal line has an open circuit or a defect.
  • the connection between the test line and the signal line is cut off by using a laser.
  • the test line of the liquid crystal display panel is used to detect the liquid crystal display panel, the laser is used to cut the test line, thereby increasing a laser cutting process, which is disadvantageous to the productivity and yield of the liquid crystal display panel.
  • the invention provides a liquid crystal display panel to solve the detection problem of the existing liquid crystal display panel.
  • a main object of the present invention is to provide a liquid crystal display panel, the liquid crystal display panel comprising:
  • At least one test line connected to the test switch for inputting a test signal to the test switch
  • a control line is connected to the test switch for turning on the test switch.
  • the test switch is a thin film transistor.
  • the test switch has a source, a drain and a gate, the source is connected to the test line, the drain is connected to the signal line, and the gate is The control lines are connected.
  • a control signal is transmitted from the control line to the test switch to turn on the test switch.
  • the signal line is a data line and the level of the control signal is above 8 volts.
  • the signal line is a gate line and the level of the control signal is above 30 volts.
  • the liquid crystal display panel further includes a driving circuit component disposed on the non-display area of the substrate, wherein an electrical contact of the driving circuit component is bonded to the signal line.
  • the signal line has a metal terminal for receiving the test signal.
  • the at least one test line is two test lines, which are respectively connected to two adjacent test switches.
  • the at least one test line is three test lines
  • the liquid crystal display panel has a red sub-pixel, a green sub-pixel, and a blue sub-pixel
  • the test lines are respectively used to test the red sub-pixel , green sub-pixels and blue sub-pixels.
  • the signal line is a data line or a gate line.
  • Another object of the present invention is to provide a liquid crystal display panel comprising: a substrate; a plurality of signal lines disposed on the substrate; a plurality of test switches connected to the signal lines; at least one test line, Connected to the test switch for inputting a test signal to the test switch; and a control line connected to the test switch for turning on the test switch; wherein, when the liquid crystal display panel is tested, a control a signal is transmitted from the control line to the test switch to turn on the test switch; wherein, when the signal line is a data line, a level of the control signal is higher than 8 volts when the signal line When it is a gate line, the level of the control signal is higher than 30 volts.
  • the liquid crystal display panel of the present invention can cut the test line without using a laser after the detection, thereby avoiding an additional laser cutting step, thereby shortening the processing time of the liquid crystal display panel, improving the productivity of the liquid crystal display panel, and avoiding the laser cutting step.
  • the test switch can be formed simultaneously with the active components of the pixel without the need for additional processing steps.
  • FIG. 1 is a schematic diagram of a test circuit of a conventional liquid crystal display panel
  • FIG. 2 is a partial schematic view showing a preferred embodiment of a liquid crystal display panel of the present invention
  • FIG. 3 is a schematic diagram of a test circuit of a preferred embodiment of a liquid crystal display panel of the present invention.
  • FIG. 4 is a schematic diagram of a test circuit of an embodiment of a liquid crystal display panel of the present invention.
  • FIG. 5 is a schematic diagram of a test circuit of another embodiment of a liquid crystal display panel of the present invention.
  • FIG. 1 is a partial schematic view of a preferred embodiment of a liquid crystal display panel of the present invention.
  • the liquid crystal display panel 100 of the present invention can be combined with a backlight module (not shown) to form a liquid crystal display device.
  • the liquid crystal display panel 100 of the present embodiment includes a substrate 110 , which may be, for example, a glass substrate or a flexible plastic substrate.
  • a plurality of signal lines 120, a plurality of test switches 130, at least one test line 140, and a control line 150 are disposed on the substrate 110.
  • the signal line 120, the test line 140, and the control line 150 are all connected to the test switch 130.
  • the signal line 120 is, for example, a data line or a gate line.
  • the signal line 120 has an exposed input terminal 121 for receiving an input signal, such as a scan signal, a data signal, or a test signal.
  • the input terminal 121 is disposed on one side of the signal line 120 and is connected to the test switch 130.
  • FIG. 2 is a schematic diagram of a test circuit of a preferred embodiment of a liquid crystal display panel of the present invention.
  • the test switch 130 is connected between the input terminal 121 of the signal line 120 and the test line 140, and can be turned on when the liquid crystal display panel 100 is tested to allow the test signal to be transmitted from the test line 140 to the signal line 120.
  • the test switch 130 can be a transistor, such as a thin film transistor (TFT).
  • TFT thin film transistor
  • the test switch 130 has a source, a drain and a gate (not shown). The source is connected to the test line 140.
  • the drain of the test switch 130 is connected to the signal line 120, and the gate of the test switch 130. It is connected to the control line 150.
  • the test switch 130 and the active components of the liquid crystal display panel 100 can be simultaneously formed on the substrate 110 to reduce the process steps. That is, in the process of the active device (such as a TFT) of the liquid crystal display panel 100, an active device (not shown) and the test switch 130 may be simultaneously formed on the substrate 110. Therefore, the test switch 130 can be formed without adding additional process steps.
  • the test line 140 is connected to the test switch 130 for inputting a test signal to the signal line 120, and the external test unit or test system can transmit the test signal to the signal line 120 through the test line 140.
  • the liquid crystal display panel 100 can be provided with three test lines 140 for respectively testing red sub-pixels (not shown), green sub-pixels (not shown), and blue sub-pixels of the liquid crystal display panel 100 (not shown). Is it normal?
  • control line 150 is respectively connected to the test switch 130 for inputting a control signal to the test switch 130 when the liquid crystal display panel 100 is tested to turn on the test switch 130.
  • the control signal provided by control line 150 can be, for example, a high level voltage signal.
  • the level of the control signal is about above 8 volts to turn on the test switch 130.
  • signal line 120 is a gate line, the level of the control signal is above about 30 volts to turn on test switch 130.
  • the test signal can be transmitted to the signal line 120 through the test line 140, and at the same time, the control signal can be transmitted from the control line 150 to the test switch 130 to turn on the test switch 130, so that the test is performed.
  • the signal can be transmitted from the test line 140 to the signal line 120 to test whether the liquid crystal display panel 100 is normal.
  • the control signal input to the control line 150 is stopped to turn off the test switch 130 so that the test signal cannot be transmitted from the test line 140 to the signal line 120.
  • the path between the test line 140 and the signal line 120 can be directly turned off without the laser cutting the test line 140 to avoid additional laser cutting steps.
  • a driving circuit component (not shown) may be disposed on the non-display area of the substrate 110, that is, outside the signal line 120, for providing a signal to the signal line 120, the driving circuit
  • the component is for example a source driver or a gate driver.
  • an electrical contact (not shown) of the driving circuit component can be directly bonded to the input terminal 121 of the signal line 120, so that the driving circuit component can be electrically connected to the signal line 120.
  • the driving circuit component can be directly bonded to the input terminal 121 of the signal line 120, and the test line 140 can still It remains on the liquid crystal display panel 100 after the test without being cut off to avoid an additional laser cutting step.
  • FIG. 4 and FIG. 5 are schematic diagrams of test circuits of the liquid crystal display panel of the present invention.
  • the at least one test line 140 may be a test line connected to the test switch 130 for inputting a test signal to the test switch 130.
  • the at least one test line 140 may also be two test lines connected to two adjacent test switches 130 for inputting test signals to the test switch 130.
  • the number of the at least one test line 140 may also be more than three.
  • the liquid crystal display panel of the present invention can selectively open/close the signal path between the signal line and the test line through the test switch without cutting the test line by the laser to avoid an additional laser cutting step. Therefore, the processing time of the liquid crystal display panel can be shortened to increase the productivity of the liquid crystal display panel, and the influence of the laser cutting step on the liquid crystal display panel can be avoided to ensure the product yield of the liquid crystal display panel. Furthermore, the setting of the test switch between the signal line and the test line can be integrated into the active component process of the pixel without adding additional processing steps.

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  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Computer Hardware Design (AREA)
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Abstract

一种液晶显示面板（100），包括信号线（120）、测试开关（130）、测试线（140）及控制线（150），测试开关（130）是设置于信号线（120）与测试线（140）之间，测试线（140）是用于向所述测试开关（130）输入测试信号，控制信号是用于开启测试开关（130）。该液晶显示面板（100）无需用激光切断测试线（140），提高了液晶面板（100）的产能及良率。

Description

液晶显示面板 技术领域
本发明涉及一种液晶显示面板领域，特别是涉及一种液晶显示面板的测试线路。
 背景技术
液晶显示器(Liquid Crystal Display，LCD)已被广泛应用于各种电子产品中，液晶显示面板是液晶显示器的重要组成元件。
液晶显示面板制造商在液晶显示面板制成后，一般都要对液晶显示面板进行测试以尽早发现问题产品以减少后续制程的浪费。目前，在液晶显示面板的检测中，通常在液晶显示面板的阵列基板上设置测试线(Shorting Bar)210来连接液晶显示面板的信号线220，如图1所示。由测试线输入测试信号至信号线，以检测信号线是有断路或缺陷，在完成测试后，利用激光将切断该测试线与信号线的连接。
 技术问题
由于通过上述液晶显示面板的测试线路在检测液晶显示面板之后，需利用激光来切断测试线，因而增加一道激光切割的制程，而不利于液晶显示面板的产能和良率。
故，有必要提供一种液晶显示面板，以解决现有技术所存在的问题。
 技术解决方案
本发明提供一种液晶显示面板，以解决现有液晶显示面板的检测问题。
本发明的主要目的在于提供一种液晶显示面板，所述液晶显示面板包括：
基板；
多条信号线，设置于所述基板上；
多个测试开关，连接于所述信号线；
至少一条测试线，连接于所述测试开关，用于向所述测试开关输入测试信号；以及
控制线，连接于所述测试开关，用于开启所述测试开关。
在本发明的一实施例中，所述测试开关为薄膜晶体管。
在本发明的一实施例中，所述测试开关具有源极、漏极及栅极，所述源极与所述测试线连接，所述漏极与所述信号线连接，所述栅极与所述控制线连接。
在本发明的一实施例中，当测试所述液晶显示面板时，控制信号是由所述控制线传至所述测试开关，以开启所述测试开关。
在本发明的一实施例中，信号线是数据线，所述控制信号的电平是高于8伏。
在本发明的一实施例中，信号线是栅极线，所述控制信号的电平是高于30伏。
在本发明的一实施例中，液晶显示面板还包括驱动电路组件，设置于所述基板的非显示区上，其中所述驱动电路组件的电性接点是接合于所述信号线。
在本发明的一实施例中，所述信号线具有金属端子，用于接收所述测试信号。
在本发明的一实施例中，所述至少一条测试线为两条测试线，其分别与两相邻的测试开关连接。
在本发明的一实施例中，所述至少一条测试线为三条测试线，所述液晶显示面板具有红色子像素、绿色子像素及蓝色子像素，所述测试线分别用于测试红色子像素、绿色子像素及蓝色子像素。
在本发明的一实施例中，所述信号线为数据线或者栅极线。
本发明的另一目的在于提供一种液晶显示面板，液晶显示面板包括：基板；多条信号线，设置于所述基板上；多个测试开关，连接于所述信号线；至少一条测试线，连接于所述测试开关，用于向所述测试开关输入测试信号；以及控制线，连接于所述测试开关，用于开启所述测试开关；其中，当测试所述液晶显示面板时，一控制信号由所述控制线传至所述测试开关，以开启所述测试开关；其中，当所述信号线是数据线时，所述控制信号的电平是高于8伏，当所述信号线是栅极线时，所述控制信号的电平是高于30伏。
 有益效果
本发明的液晶显示面板在检测后可不需通过激光来切断测试线，以避免额外的激光切断步骤，因而可缩短液晶显示面板的制程时间，以提高液晶显示面板的产能，且可避免激光切断步骤对液晶显示面板的影响，以确保液晶显示面板的产品良率。再者，测试开关可与像素的主动组件同时形成，而不需增加额外的制程步骤。
 附图说明
图 1 为现有液晶显示面板的测试电路示意图；
图 2 为本发明液晶显示面板的优选实施例的部分示意图；
图 3 为本发明液晶显示面板的优选实施例的测试电路示意图；
图 4 为本发明液晶显示面板的一实施例的测试电路示意图；以及
图 5 为本发明液晶显示面板的另一实施例的测试电路示意图。
 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。
请参照图1，其为本发明液晶显示面板的优选实施例的部分示意图。本发明的液晶显示面板100可组合背光模块(未显示)，而形成液晶显示装置。如图1所示，本实施例的液晶显示面板100包含基板110，基板110可例如为玻璃基板或可挠性塑料基板。该基板110上设置多条信号线120、多个测试开关130、至少一条测试线140及控制线150。信号线120、测试线140及控制线150均与测试开关130连接。
如图1所示，信号线120例如为数据线或栅极线，信号线120具有外露的输入端子121，用于接收输入的信号，例如：扫描信号、数据信号或测试信号。输入端子121是设置于信号线120的一侧，并连接于测试开关130。
请参照图2，其为本发明液晶显示面板的优选实施例的测试电路示意图。测试开关130连接在信号线120的输入端子121与测试线140之间，并可在测试液晶显示面板100时被开启，以允许测试信号由测试线140传入信号线120。在本实施例中，测试开关130可为晶体管，例如薄膜晶体管(TFT)。此时，测试开关130具有源极、漏极及栅极（图未示），该源极是连接于测试线140，测试开关130的漏极是连接于信号线120，测试开关130的栅极是连接于控制线150。当然，在本实施例中，测试开关130与液晶显示面板100的主动元件(如薄膜晶体管)可同时形成于基板110上，以减少制程步骤。即，在液晶显示面板100的主动元件(如TFT)的制程中，可同时形成主动元件(未显示)及测试开关130于基板110上。因此，可不需增加额外的制程步骤来形成测试开关130。
如图2所示，测试线140连接测试开关130，用于输入测试信号至信号线120，外部的测试单元或测试系统可通过测试线140来传送测试信号至信号线120。在本实施例中，液晶显示面板100可设有三条测试线140，用以分别测试液晶显示面板100的红色子像素(未显示)、绿色子像素(未显示)及蓝色子像素(未显示)是否正常。
如图2所示，控制线150是分别连接于测试开关130，用于在测试液晶显示面板100时输入控制信号至测试开关130，以开启测试开关130。控制线150所提供的控制信号可例如为一高电平的电压信号。当信号线120是数据线，所述控制信号的电平是约高于8伏，以开启测试开关130。当信号线120是栅极线，所述控制信号的电平是约高于30伏，以开启测试开关130。
如图2所示，当测试液晶显示面板100时，可通过测试线140来传送测试信号至信号线120，同时，控制信号可由控制线150传送至测试开关130，以开启测试开关130，使得测试信号可由测试线140传送至信号线120，以测试液晶显示面板100是否正常。
在测试液晶显示面板100之后，停止向控制线150输入的控制信号，以关闭测试开关130，使得测试信号无法由测试线140传送至信号线120。因此，通过测试开关130，可直接关闭测试线140与信号线120之间的路径，而不需通过激光来切断测试线140，以避免额外的激光切断步骤。
在液晶显示面板100经过测试且确认为正常之后，驱动电路组件(未显示)可设置于基板110的非显示区上，亦即信号线120的外侧，用于提供信号至信号线120，驱动电路组件例如为源极驱动器或栅极驱动器。此时，驱动电路组件的电性接点(未显示)可直接接合于信号线120的输入端子121，使得驱动电路组件可电性连接于信号线120。在测试液晶显示面板100之后，由于信号线120与测试线140之间的测试开关130为关闭状态，因此，驱动电路组件可直接接合于信号线120的输入端子121上，且测试线140可仍保留在测试后的液晶显示面板100上，而不需被切断，以避免额外的激光切断步骤。
请参照图4及图5，其为本发明液晶显示面板的测试电路示意图。在一实施例中，如图4所示，所述至少一条测试线140可为一条测试线，其与测试开关130连接，用于输入测试信号至测试开关130。在另一实施例中，如图5所示，所述至少一条测试线140亦可为二条测试线，其分别与两相邻的测试开关130连接，用于输入测试信号至测试开关130。当然，在其它实施例中，所述至少一条测试线140的数量也可多于三条。
由上述可知，本发明的液晶显示面板可通过测试开关来选择性地开/关信号线与测试线之间的信号路径，而不需通过激光来切断测试线，以避免额外的激光切断步骤，因而可缩短液晶显示面板的制程时间，以提高液晶显示面板的产能，且可避免激光切断步骤对液晶显示面板的影响，以确保液晶显示面板的产品良率。再者，信号线与测试线之间的测试开关的设置可整合于像素的主动组件制程中，而不需增加额外的制程步骤。
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。
 本发明的实施方式
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Claims (17)

  1. 一种液晶显示面板，包括：
    基板；
    多条信号线，设置于所述基板上；
    多个测试开关，连接于所述信号线；
    至少一条测试线，连接于所述测试开关，用于向所述测试开关输入测试信号；以及
    控制线，连接于所述测试开关，用于开启所述测试开关；
    其中，当测试所述液晶显示面板时，一控制信号由所述控制线传至所述测试开关，以开启所述测试开关；
    其中，当所述信号线是数据线时，所述控制信号的电平是高于8伏，当所述信号线是栅极线时，所述控制信号的电平是高于30伏。
  2. 根据权利要求1所述的液晶显示面板，其中所述测试开关为薄膜晶体管。
  3. 根据权利要求2所述的液晶显示面板，其中所述测试开关具有源极、漏极及栅极，所述源极与所述测试线连接，所述漏极与所述信号线连接，所述栅极与所述控制线连接。
  4. 根据权利要求1所述的液晶显示面板，还包括驱动电路组件，设置于所述基板上，其中所述驱动电路组件的电性连接所述信号线。
  5. 根据权利要求1所述的液晶显示面板，其中所述信号线具有金属端子，用于接收所述测试信号。
  6. 根据权利要求1所述的液晶显示面板，其中所述至少一条测试线为两条测试线，其分别与两相邻的测试开关连接。
  7. 根据权利要求1所述的液晶显示面板，其中所述至少一条测试线为三条测试线，所述液晶显示面板具有红色子像素、绿色子像素及蓝色子像素，所述测试线分别用于测试红色子像素、绿色子像素及蓝色子像素。
  8. 一种液晶显示面板，包括：
    基板；
    多条信号线，设置于所述基板上；
    多个测试开关，连接于所述信号线；
    至少一条测试线，连接于所述测试开关，用于向所述测试开关输入测试信号；以及
    控制线，连接于所述测试开关，用于开启所述测试开关。
  9. 根据权利要求8所述的液晶显示面板，其中所述测试开关为薄膜晶体管。
  10. 根据权利要求9所述的液晶显示面板，其中所述测试开关具有源极、漏极及栅极，所述源极与所述测试线连接，所述漏极与所述信号线连接，所述栅极与所述控制线连接。
  11. 根据权利要求8所述的液晶显示面板，其中当测试所述液晶显示面板时，一控制信号由所述控制线传至所述测试开关，以开启所述测试开关。
  12. 根据权利要求11所述的液晶显示面板，其中所述信号线是数据线，所述控制信号的电平是高于8伏。
  13. 根据权利要求11所述的液晶显示面板，其中所述信号线是栅极线，所述控制信号的电平是高于30伏。
  14. 根据权利要求8所述的液晶显示面板，还包括驱动电路组件，设置于所述基板上，其中所述驱动电路组件的电性连接所述信号线。
  15. 根据权利要求8所述的液晶显示面板，其中所述信号线具有金属端子，用于接收所述测试信号。
  16. 根据权利要求8所述的液晶显示面板，其中所述至少一条测试线为两条测试线，其分别与两相邻的测试开关连接。
  17. 根据权利要求8所述的液晶显示面板，其中所述至少一条测试线为三条测试线，所述液晶显示面板具有红色子像素、绿色子像素及蓝色子像素，所述测试线分别用于测试红色子像素、绿色子像素及蓝色子像素。
PCT/CN2012/076687 2012-05-23 2012-06-11 液晶显示面板 WO2013174046A1 (zh)

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