WO2016169171A1 - 显示面板线路的检测装置及检测方法 - Google Patents

显示面板线路的检测装置及检测方法 Download PDF

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Publication number
WO2016169171A1
WO2016169171A1 PCT/CN2015/087700 CN2015087700W WO2016169171A1 WO 2016169171 A1 WO2016169171 A1 WO 2016169171A1 CN 2015087700 W CN2015087700 W CN 2015087700W WO 2016169171 A1 WO2016169171 A1 WO 2016169171A1
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receiving module
signal receiving
signal
display panel
fan
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PCT/CN2015/087700
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English (en)
French (fr)
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付延峰
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深圳市华星光电技术有限公司
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Priority to US14/775,548 priority Critical patent/US20170146582A1/en
Publication of WO2016169171A1 publication Critical patent/WO2016169171A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/58—Testing of lines, cables or conductors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28—Testing of electronic circuits, e.g. by signal tracer
    • G01R31/282—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere
    • G01R31/2825—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere in household appliances or professional audio/video equipment
    • 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
    • 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
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers

Definitions

  • the present invention belongs to the field of display technologies, and in particular, to a detection device and a detection method for a display panel line.
  • TFT LCD thin film transistor liquid crystal display
  • FIG. 1 is a schematic view showing a conventional detecting device for detecting a display panel.
  • the detecting device 10 includes a signal transmitting module 101 and a signal receiving module 102.
  • the detecting device 1 performs line scanning on the wires on the display panel 20 one by one to find out the defective line and determines the defective position of the entire defective line.
  • the display panel 20 includes a parallel wire pattern display area (Active Area) AA and a fan-out area FA outside the display area AA.
  • the wires on the display panel 20 (for example, the gate lines 201 and the data lines 202) are formed on the display area AA as well as on the fan-out area FA.
  • the signal transmitting position of the signal transmitting module 101 of the detecting device 10 starts at the edge of the display area AA, and the signal receiving position of the signal receiving module 102 of the detecting device 10 is also at the edge of the display area AA. Since the FA detection signal of the peripheral fan-out area cannot be introduced, the line defect of the peripheral fan-out area FA cannot be effectively detected, which may result in an inability to perform an effective repair, thereby affecting product yield and causing unnecessary waste.
  • an object of the present invention is to provide a display panel.
  • the detecting device of the line includes: a signal transmitting module, a first signal receiving module and a second signal receiving module, wherein the signal transmitting module simultaneously sends a signal to the display area of the display panel and the wire in the fan-out area, the first signal
  • the receiving module is configured to detect a conduction state of a wire in the display area according to a signal in a wire in the display area, where the second signal receiving module is configured to be used according to a wire in the fan-out area
  • the signal detects the conduction condition of the wires in the display area.
  • the signal transmitting module is set to a sliding state, so that the signal transmitting module simultaneously sends signals to the wires in the display area and the fan-out area of the display panel one by one.
  • the first signal receiving module is set to a sliding state, so that the first signal receiving module detects the conduction state of the wires in the display area one by one.
  • wires in the fan-out area are connected together and connected to the second signal receiving module, and the second signal receiving module is set to a stationary state.
  • the second signal receiving module is set to a sliding state, so that the second signal receiving module detects the conduction state of the wires in the display area one by one.
  • Another object of the present invention is to provide a method for detecting a display panel line, comprising: transmitting a signal to a display area of a display panel and a wire in a fan-out area by using a signal transmission module; using the first signal receiving module according to the a signal in the wire in the display area detects a conduction condition of the wire in the display area; the second signal receiving module uses a signal in the wire in the fan-out area to align the wire in the display area The conduction status is detected.
  • the signal transmitting module is set to a sliding state, and the signal transmitting module simultaneously transmits signals to the display areas of the display panel and the wires in the fan-out area at a time.
  • the first signal receiving module is set to a sliding state, and the first signal receiving module detects the conduction state of the wires in the display area one by one.
  • wires in the fan-out area are connected together and connected to the second signal receiving module, and the second signal receiving module is set to a stationary state.
  • the second signal receiving module is set to a sliding state, and the second signal receiving module detects the conduction state of the wires in the display area one by one.
  • the invention utilizes the second signal receiving module in the fan-out area of the display panel to effectively detect the line defects in the fan-out area of the display panel, thereby effectively repairing the defective line, thereby improving the product yield.
  • FIG. 1 is a schematic view showing a conventional detecting device for detecting a display panel
  • FIG. 2 is a schematic view showing detection of a display panel by a detecting device according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram showing detection of a display panel by a detecting device according to another embodiment of the present invention.
  • FIG. 2 shows a schematic diagram of a detection device detecting a display panel in accordance with an embodiment of the present invention.
  • detection of the conduction state of the gate line 231 by the second signal receiving module 130 is shown. It should be understood that when the detection of the on state of the data line 232 is required, it is only necessary to move the second signal receiving module 130 to the data line 232.
  • a detecting apparatus 100 includes a signal transmitting module 110, a first signal receiving module 120, and a second signal receiving module 130.
  • the signal transmitting module 110, the first signal receiving module 120, and the second signal receiving module 130 may be one or at least two.
  • one of the signal transmitting module 110, the first signal receiving module 120, and the second signal receiving module 130 is taken as an example.
  • the display panel 200 according to the embodiment of the present invention may be, for example, a liquid crystal display panel or an organic light emitting display panel, etc., and the present invention is not limited thereto.
  • the display panel 200 according to an embodiment of the present invention includes a display area (Active Area) 210, a fan-out area 220 outside the display area 210, and a plurality of parallels located in the display area 210 and the fan-out area 220. wire. These parallel wires include gate lines 231 arranged in the column direction and extending in the row direction, and data lines 232 arranged in the row direction and extending in the column direction.
  • the signal transmitting module 110 simultaneously transmits signals to the wires (gate line 231 or data line 232) in the display area 210 and the fan-out area 220 of the display panel 200.
  • the signal transmitting module 110 may be set to a slidable state, such that the signal transmitting module 110 may simultaneously send signals to the wires in the display area 210 and the fan-out area 220 of the display panel 200 one by one.
  • the first signal receiving module 120 is configured to detect a conduction state of a wire in the display region 210 of the display panel 200 according to a signal in a wire in the display region 210 of the display panel 200. For example, the first signal receiving module 120 receives the signal from the signal transmitting module 110 to a certain wire in the display area 210, indicating that a certain wire in the display area 210 is in a conducting state, and vice versa, the first signal receiving module. 120 does not receive the signal from the signal transmitting module 110 to a certain wire in the display area 210, indicating that a certain wire in the display area 210 is in a defect (such as an open circuit) condition.
  • a defect such as an open circuit
  • the first signal receiving module 120 can be set to a slidable state (in FIG. 2, the upward direction of the arrow indicates the sliding direction, only as an example), such that the first signal receiving module 120 can display the display panel 200 one by one.
  • the conduction state of the wires in the region 210 is detected.
  • the second signal receiving module 130 is configured to detect a conduction state of a wire in the fan-out area 220 of the display panel 200 according to a signal in a wire in the fan-out area 220 of the display panel 200. For example, the second signal receiving module 130 receives a signal from the signal transmitting module 110 to a certain wire (ie, a certain gate line 231) in the fan-out area 220, indicating that a certain wire in the fan-out area 220 is If the second signal receiving module 130 does not receive the signal from the signal transmitting module 110 to a certain one of the fan-out regions 220, it indicates that a certain wire in the fan-out region 220 is in a defect (such as an open circuit). )situation.
  • a defect such as an open circuit.
  • the second signal receiving module 130 can be set to a slidable state, such that the second signal receiving module 130 can detect the conduction state of the wires in the fan-out area 220 of the display panel 200 one by one.
  • FIG. 3 is a schematic diagram showing detection of a display panel by a detecting device according to another embodiment of the present invention. Similarly, as in FIG. 2, FIG. 3 also shows the detection of the conduction state of the gate line 231 by the second signal receiving module 130. It should be understood that when the detection of the on state of the data line 232 is required, it is only necessary to move the second signal receiving module 130 to the data line 232.
  • the second signal receiving module 130 is set to a stationary state.
  • the wires in the fan-out area 220 of the display panel 200 are connected together and connected to the second signal receiving module 130.
  • the second signal receiving module 130 can also be implemented.
  • the conduction state of the wires in the fan-out area 220 of the display panel 200 is detected one by one. It should be noted that after the detection of the display panel 200 by the detecting device 100 is completed, the wires in the fan-out region 220 of the display panel 200 are cut along the cutting line CL shown in FIG. 3, and the display panel 200 can be The wires in the fan-out area 220 are separated apart.
  • the second signal receiving module 130 is added to the fan-out area 220 of the display panel 200, and the added second signal receiving module 130 effectively detects the line defect in the fan-out area 220 of the display panel 200, thereby enabling Effective repair of defective lines to improve product yield.

Abstract

一种显示面板线路的检测装置(100)，包括：信号发射模块(110)、第一信号接收模块(120)以及第二信号接收模块(130)，信号发射模块(110)同时向显示面板(200)的显示区域(210)和扇出区域(220)中的导线（231,232）发送信号，第一信号接收模块(120)用于根据显示区域(210)中的导线（231,232）中的信号对显示区域(210)中的导线（231,232）的导通状况进行检测，第二信号接收模块(130)用于根据扇出区域(220)中的导线（231,232）中的信号对扇出区域（220）中的导线（231,232）的导通状况进行检测。以及一种显示面板线路的检测方法，利用在显示面板（200）的扇出区域（220）增加第二信号接收模块（130）有效地检测出显示面板（200）的扇出区域（220）中的线路缺陷，从而能够对有缺陷的线路进行有效修复，进而提升产品良率。

Description

显示面板线路的检测装置及检测方法 技术领域
本发明属于显示技术领域，具体地，涉及一种显示面板线路的检测装置及检测方法。
背景技术
薄膜晶体管液晶显示器(TFT LCD)的，尤其是大尺寸的TFT LCD的显示面板需要经过复杂的工艺流程制造。在制造完成后，由于显示面板上的线路容易出现断路和短路现象，因此需要检测出显示面板上线路的断路和短路，以进行及时维修，从而提升产品的良率。
薄膜晶体管液晶显示器的显示面板中有大量的平行导线，平行导线一般包括栅极线和数据线，这类平行导线由于颗粒或金属残留等原因造成断路和短路时，需要利用检测装置将存在缺陷的导线检测出。图1示出了现有的一种检测装置对显示面板进行检测的示意图。参照图1，该检测装置10包括信号发射模块101以及信号接收模块102。检测装置1逐条对显示面板20上的导线进行线扫描，以查找出不良线，并确定整条不良线的不良位置。
然而，继续参照图1，显示面板20包括平行导线图案显示区域(Active Area)AA以及显示区域AA之外的扇出区域(Fan-out Area)FA。而显示面板20上的导线(例如栅极线201、数据线202)既形成在显示区域AA上也形成在扇出区域FA上。检测装置10的信号发射模块101的信号发射位置起始于显示区域AA边缘，检测装置10的信号接收模块102的信号接收位置也处于显示区域AA边缘。由于外围扇出区域FA检测信号无法导入，导致外围扇出区域FA的线路缺陷不能有效检出，进而导致不能进行有效的修复，从而影响产品良率以及造成不必要的浪费。
发明内容
为了解决上述现有技术存在的问题，本发明的目的在于提供一种显示面板 线路的检测装置，包括：信号发射模块、第一信号接收模块以及第二信号接收模块，所述信号发射模块同时向显示面板的显示区域和扇出区域中的导线发送信号，所述第一信号接收模块用于根据所述显示区域中的导线中的信号对所述显示区域中的导线的导通状况进行检测，所述第二信号接收模块用于根据所述扇出区域中的导线中的信号对所述显示区域中的导线的导通状况进行检测。
进一步地，所述信号发射模块被设置为滑动状态，以使所述信号发射模块同时逐条向显示面板的显示区域和扇出区域中的导线发送信号。
进一步地，所述第一信号接收模块被设置为滑动状态，以使所述第一信号接收模块逐条对所述显示区域中的导线的导通状况进行检测。
进一步地，所述扇出区域中的导线连接在一起且连接到所述第二信号接收模块，所述第二信号接收模块被设置为静止状态。
进一步地，所述第二信号接收模块被设置为滑动状态，以使所述第二信号接收模块逐条对所述显示区域中的导线的导通状况进行检测。
本发明的另一目的还在于提供一种显示面板线路的检测方法，包括：利用信号发射模块同时向显示面板的显示区域和扇出区域中的导线发送信号；利用第一信号接收模块根据所述显示区域中的导线中的信号对所述显示区域中的导线的导通状况进行检测；利用第二信号接收模块根据所述扇出区域中的导线中的信号对所述显示区域中的导线的导通状况进行检测。
进一步地，将所述信号发射模块设置为滑动状态，利用所述信号发射模块同时逐条向显示面板的显示区域和扇出区域中的导线发送信号。
进一步地，将所述第一信号接收模块设置为滑动状态，利用所述第一信号接收模块逐条对所述显示区域中的导线的导通状况进行检测。
进一步地，将所述扇出区域中的导线连接在一起且连接到所述第二信号接收模块，并将所述第二信号接收模块设置为静止状态。
进一步地，将所述第二信号接收模块设置为滑动状态，利用所述第二信号接收模块逐条对所述显示区域中的导线的导通状况进行检测。
本发明利用在显示面板的扇出区域增加第二信号接收模块有效地检测出显示面板的扇出区域中的线路缺陷，从而能够对有缺陷的线路进行有效修复，进而提升产品良率。
附图说明
通过结合附图进行的以下描述，本发明的实施例的上述和其它方面、特点和优点将变得更加清楚，附图中：
图1示出了现有的一种检测装置对显示面板进行检测的示意图；
图2示出了根据本发明的实施例的检测装置对显示面板进行检测的示意图；
图3示出了根据本发明的另一实施例的检测装置对显示面板进行检测的示意图。
具体实施方式
以下，将参照附图来详细描述本发明的实施例。然而，可以以许多不同的形式来实施本发明，并且本发明不应该被解释为限制于这里阐述的具体实施例。相反，提供这些实施例是为了解释本发明的原理及其实际应用，从而使本领域的其他技术人员能够理解本发明的各种实施例和适合于特定预期应用的各种修改。在附图中，为了清楚器件，夸大了层和区域的厚度。相同的标号在整个说明书和附图中可用来表示相同的元件。
图2示出了根据本发明的实施例的检测装置对显示面板进行检测的示意图。在图2中，示出了利用第二信号接收模块130对栅极线231进行导通状况的检测。应当理解的是，在需要对数据线232进行导通状态的检测时，只需将第二信号接收模块130移动到数据线232处即可。
参照图2，根据本发明的实施例的检测装置100包括信号发射模块110、第一信号接收模块120以及第二信号接收模块130。信号发射模块110、第一信号接收模块120以及第二信号接收模块130可以为一个或至少两个。这里，以信号发射模块110、第一信号接收模块120以及第二信号接收模块130均为一个为例。
根据本发明的实施例的显示面板200可例如是液晶显示面板或者有机发光显示面板等，本发明并不加以限制。根据本发明的实施例的显示面板200包括显示区域(Active Area)210、显示区域210之外的扇出区域(Fan-out Area)220以及位于显示区域210和扇出区域220中的多条平行导线。这些平行导线包括沿列方向排列且沿行方向延伸的栅极线231以及沿行方向排列且沿列方向延伸的数据线232。
信号发射模块110同时向显示面板200的显示区域210和扇出区域220中的导线(栅极线231或数据线232)发送信号。这里，进一步地，信号发射模块110可被设置为可滑动状态，这样，信号发射模块110可同时逐条向显示面板200的显示区域210和扇出区域220中的导线发送信号。
第一信号接收模块120用于根据显示面板200的显示区域210中的导线中的信号对显示面板200的显示区域210中的导线的导通状况进行检测。例如，第一信号接收模块120接收到信号发射模块110向显示区域210中的某条导线中的信号，则表示该显示区域210中的某条导线处于导通状况，反之，第一信号接收模块120未接收到信号发射模块110向显示区域210中的某条导线中的信号，则表示该显示区域210中的某条导线处于缺陷(诸如断路)状况。
进一步地，第一信号接收模块120可被设置为可滑动状态(图2中，以向上的箭头表示滑动方向，仅作为示例)，这样，第一信号接收模块120可逐条对显示面板200的显示区域210中的导线的导通状况进行检测。
第二信号接收模块130用于根据显示面板200的扇出区域220中的导线中的信号对显示面板200的扇出区域220中的导线的导通状况进行检测。例如，第二信号接收模块130接收到信号发射模块110向扇出区域220中的某条导线(即某条栅极线231)中的信号，则表示该扇出区域220中的某条导线处于导通状况，反之，第二信号接收模块130未接收到信号发射模块110向扇出区域220中的某条导线中的信号，则表示该扇出区域220中的某条导线处于缺陷(诸如断路)状况。
进一步地，第二信号接收模块130可被设置为可滑动状态，这样，第二信号接收模块130可逐条对显示面板200的扇出区域220中的导线的导通状况进行检测。
图3示出了根据本发明的另一实施例的检测装置对显示面板进行检测的示意图。同样地，与图2所示相同的是，图3也是示出了利用第二信号接收模块130对栅极线231进行导通状况的检测。应当理解的是，在需要对数据线232进行导通状态的检测时，只需将第二信号接收模块130移动到数据线232处即可。
参照图3，与图2所示的实施例不同的是：第二信号接收模块130被设置为静止状态。当第二信号接收模块130被设置为静止状态时，将显示面板200的扇出区域220中的导线连接在一起且连接到第二信号接收模块130，这样，也可实现第二信号接收模块130逐条对显示面板200的扇出区域220中的导线的导通状况进行检测。需要说明的是，在利用检测装置100对显示面板200检测完成后，沿着图3所示的切割线CL对显示面板200的扇出区域220中的导线进行切割，即可将显示面板200的扇出区域220中的导线独立分隔开。
综上所述，在显示面板200的扇出区域220增加第二信号接收模块130，利用增加的第二信号接收模块130有效地检测出显示面板200的扇出区域220中的线路缺陷，从而能够对有缺陷的线路进行有效修复，进而提升产品良率。
虽然已经参照特定实施例示出并描述了本发明，但是本领域的技术人员将理解：在不脱离由权利要求及其等同物限定的本发明的精神和范围的情况下，可在此进行形式和细节上的各种变化。

Claims (10)

  1. 一种显示面板线路的检测装置，其中，包括：信号发射模块、第一信号接收模块以及第二信号接收模块，
    所述信号发射模块同时向显示面板的显示区域和扇出区域中的导线发送信号，所述第一信号接收模块用于根据所述显示区域中的导线中的信号对所述显示区域中的导线的导通状况进行检测，所述第二信号接收模块用于根据所述扇出区域中的导线中的信号对所述显示区域中的导线的导通状况进行检测。
  2. 根据权利要求1所述的检测装置，其中，所述信号发射模块被设置为滑动状态，以使所述信号发射模块同时逐条向显示面板的显示区域和扇出区域中的导线发送信号。
  3. 根据权利要求2所述的检测装置，其中，所述第一信号接收模块被设置为滑动状态，以使所述第一信号接收模块逐条对所述显示区域中的导线的导通状况进行检测。
  4. 根据权利要求3所述的检测装置，其中，所述扇出区域中的导线连接在一起且连接到所述第二信号接收模块，所述第二信号接收模块被设置为静止状态。
  5. 根据权利要求3所述的检测装置，其中，所述第二信号接收模块被设置为滑动状态，以使所述第二信号接收模块逐条对所述显示区域中的导线的导通状况进行检测。
  6. 一种显示面板线路的检测方法，其中，包括：
    利用信号发射模块同时向显示面板的显示区域和扇出区域中的导线发送信号；
    利用第一信号接收模块根据所述显示区域中的导线中的信号对所述显示区域中的导线的导通状况进行检测；
    利用第二信号接收模块根据所述扇出区域中的导线中的信号对所述显示区域中的导线的导通状况进行检测。
  7. 根据权利要求6所述的检测方法，其中，将所述信号发射模块设置为滑动状态，利用所述信号发射模块同时逐条向显示面板的显示区域和扇出区域中的导线发送信号。
  8. 根据权利要求7所述的检测方法，其中，将所述第一信号接收模块设置为滑动状态，利用所述第一信号接收模块逐条对所述显示区域中的导线的导通状况进行检测。
  9. 根据权利要求8所述的检测方法，其中，将所述扇出区域中的导线连接在一起且连接到所述第二信号接收模块，并将所述第二信号接收模块设置为静止状态。
  10. 根据权利要求8所述的检测方法，其中，将所述第二信号接收模块设置为滑动状态，利用所述第二信号接收模块逐条对所述显示区域中的导线的导通状况进行检测。
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