WO2017128778A1 - 点灯治具及点灯方法 - Google Patents

点灯治具及点灯方法 Download PDF

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Publication number
WO2017128778A1
WO2017128778A1 PCT/CN2016/102859 CN2016102859W WO2017128778A1 WO 2017128778 A1 WO2017128778 A1 WO 2017128778A1 CN 2016102859 W CN2016102859 W CN 2016102859W WO 2017128778 A1 WO2017128778 A1 WO 2017128778A1
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WIPO (PCT)
Prior art keywords
signal
circuit board
scan
data
scanning
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Ceased
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PCT/CN2016/102859
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English (en)
French (fr)
Inventor
李世军
吴松
张小明
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BOE Technology Group Co Ltd
Hefei Xinsheng Optoelectronics Technology Co Ltd
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BOE Technology Group Co Ltd
Hefei Xinsheng Optoelectronics Technology Co Ltd
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Priority to US15/536,463 priority Critical patent/US10627657B2/en
Publication of WO2017128778A1 publication Critical patent/WO2017128778A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133305—Flexible substrates, e.g. plastics, organic film
    • 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
    • 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
    • G02F1/136259—Repairing; Defects
    • G02F1/136263—Line defects
    • 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
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix

Definitions

  • Embodiments of the present invention relate to a lighting fixture and a lighting method.
  • TFT-LCD thin film transistor liquid crystal display
  • the driving signal is input from the data signal access point, and the common voltage Vcom signal is also input from the data signal access point; the clock signal, the thin film transistor (TFT) switching signal is also Input from the data signal access point. Therefore, the data signal access point set has several functions together, so the structure becomes very complicated, so it is also easy to be damaged, causing abnormal lighting.
  • Embodiments of the present invention provide a lighting fixture and a lighting method for improving the stability of a lighting fixture when lighting.
  • Embodiments of the present invention provide a lighting fixture comprising: a signal generator; a data signal circuit board connected to the signal generator, the data signal circuit board for data signals and scanning signals Splitting; at least one data signal probe block connected to the data signal circuit board, wherein the shunt data signal is input to the data port of the liquid crystal display panel through the data signal probe block; and is connected to the data signal circuit board At least one scan signal circuit board, wherein the scan signal circuit board is connected with a scan signal probe block, and the shunt scan signal is input to the scan port of the liquid crystal display panel through the scan signal probe block.
  • the data signal circuit board is connected to a printed circuit board through a flexible circuit, and the printed circuit board is connected to the data signal probe block through a flexible circuit.
  • the lighting fixture includes a plurality of data signal probe blocks.
  • the lighting fixture includes two scanning signal boards, and the two scanning signal boards are respectively disposed on two sides of the liquid crystal display panel and are respectively connected to the liquid crystal display panel through signal probe blocks.
  • one side of the scanning signal circuit board is provided with a thin film transistor switching signal input port, a first time signal input port, and a second time signal input port.
  • the plurality of scanning signal probe blocks are arranged in a single row on a side of the scanning signal circuit board adjacent to the first time signal input port setting side, and the film
  • the transistor switch signal input port is connected to each of the scan signal probe blocks through a signal line.
  • the first time signal input port is connected to a scan signal probe block signal farthest from the first time signal input port through a signal line, and the second time signal input port pass signal
  • the line is connected to the scan signal probe block closest to the second time signal input port, and a signal line for transmitting the second time signal is connected between the adjacent two scan signal probe blocks.
  • the scanning signal probe block includes a scanning signal flip chip, and a protruding flip chip connected to the scanning signal flip chip through a flexible wiring board, wherein the scanning signal is covered
  • the crystalline film is coupled to the scan signal circuit board, and the protruding flip chip is signally coupled to the liquid crystal display panel.
  • the data signal circuit board is signally coupled to the scanning signal circuit board through a flexible circuit board.
  • An embodiment of the present invention further provides a lighting method, the method comprising: shunting a data signal and a scan signal generated by a signal generator; inputting the shunt data signal to a data port of the liquid crystal display panel; and scanning the shunt A signal is input to a scan port of the liquid crystal display panel.
  • the scan signal includes at least a first time signal and a second time signal, the method further comprising: transmitting the first time signal to a scan signal probe block that is farthest from an input end of the scan signal circuit board; And transmitting the second time signal to all of the scan signal probe blocks in sequence from the scan signal probe block closest to the input of the scan signal board.
  • FIG. 1A and FIG. 1B are structural diagrams of a lighting fixture according to an embodiment of the present invention.
  • FIG. 2 is a structural block diagram of a scanning signal probe block of a lighting fixture according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a working principle of a scanning signal circuit board of a lighting fixture according to an embodiment of the present invention.
  • FIG. 1A and FIG. 1B are block diagrams showing the structure of a lighting fixture provided by an embodiment of the present invention.
  • the embodiment of the present invention provides a lighting fixture.
  • the lighting fixture includes a signal generator 1 and a data signal circuit board 2 connected to the signal generator 1.
  • the data signal circuit board 2 is used for shunting the data signal and the scan signal; the data signal circuit board 2 is connected with the data signal probe block 4, and the shunt data signal is input to the liquid crystal display panel 7 to be detected through the data signal probe block 4. Data port.
  • the data signal circuit board 2 is also connected to the scan signal circuit board 5, and the scan signal circuit board 5 is connected with the scan signal probe block 6, and the shunt scan signal is input to the detected liquid crystal display panel 7 through the scan signal probe block 6. port.
  • the signal (including the data signal and the drive signal) generated by the signal generator 1 is shunted by the data signal circuit board 2, and the data signal (such as the drive signal) is transmitted to the liquid crystal display panel 7 through the data signal probe block 4.
  • a scanning signal such as a clock signal, a TFT (Thin Film Transistor) switching signal is transmitted to the inside of the liquid crystal display panel 7 through the scanning signal circuit board 5 and the scanning signal probe block 6.
  • TFT Thin Film Transistor
  • the data signal circuit board 2 is connected to the printed circuit board 3 by, for example, a flexible circuit board 8, which is connected to the data signal probe 4 by, for example, a flexible circuit board 9.
  • a plurality of data signal probe blocks 4 There are a plurality of data signal probe blocks 4, and a plurality of data signal probe blocks 4 are arranged in a single row. The number of data signal probe blocks 4 can be set according to the parameters (for example, resolution) of the liquid crystal display panel 7 to be detected.
  • a scan signal circuit board 5 may be provided, and the scan signal circuit board 5 is disposed on one side of the liquid crystal display panel 7 and respectively passed through the scan signal probe block 6 corresponding thereto.
  • the liquid crystal display panel 7 is signal-connected, and the example corresponds to a single-side driven liquid crystal display panel; referring to FIG. 1B, in one example, two scan signal circuit boards 5 may be provided, and the two scan signal circuit boards 5 are respectively set.
  • the liquid crystal display panel 7 is connected to the liquid crystal display panel 7 via the scanning signal probe block 6 corresponding thereto, and the example corresponds to the double-sided driving liquid crystal display panel.
  • the data signal and the scan signal are output from the signal generator 1, they are shunted by the data signal circuit board 2, and the data signal is input to the data line of the liquid crystal display panel 7 through the printed circuit board 3 and the data signal probe block 4; the scan signal passes through the flexible circuit The board is transferred to the scanning signal circuit board 5, and then transmitted to the scanning signal line side of the liquid crystal display panel 7 by the scanning signal probe block 6.
  • the signal generated by the signal generator 1 is shunted by the data signal circuit board 2, and the drive signal is transmitted to the inside of the liquid crystal display panel 7 through the data signal probe block 4; clock signal, TFT The switching signal or the like is transmitted to the inside of the liquid crystal display panel 7 through the scanning signal circuit board 5 and the scanning signal probe block 6.
  • This lighting signal transmission method improves the stability of signal loading.
  • the structure of an exemplary scan signal probe block 6 is shown in FIG.
  • the scanning signal probe block 6 includes a scanning signal flip chip 61 and a protruding flip chip 62 connected to the scanning signal flip chip 61.
  • the scanning signal flip chip 61 and the scanning signal circuit board 5 are connected by a flexible circuit board 11, and the protruding flip chip 62 is signal-connected to the liquid crystal display panel 7.
  • the scanning signal circuit board 5 is connected to the data signal circuit board 2 through the flexible circuit board 10.
  • the flexible circuit board 11 is connected to both sides of the scan signal flip chip 61; and the signal input to each row of the gate lines is superposed by the scan signal flip chip 61 through the overlying flip chip
  • the film 62 is transferred onto the liquid crystal display panel 7, and as shown in FIG. 2, the intermediate scanning signal of the scanning signal flip chip 61 is connected to the protruding flip chip 62.
  • An empty terminal 63 may be disposed on both sides of the protruding flip chip 62 for aligning with the terminal on the liquid crystal display 7, and no signal transmission is performed.
  • FIG. 1 The design of an exemplary scan signal circuit board 5 is shown in FIG.
  • One side of the scan signal circuit board 5 is provided with a thin film transistor switch signal input port 51, a first time signal input port 52, and a second time signal input port 53.
  • a plurality of scanning signal probe blocks 6 are arranged in a single row on a side of the scanning signal circuit board adjacent to the set side of the first time signal input port 52, and the thin film transistor switching signal input port 51 passes through the signal line and each One scan signal probe block is connected.
  • the first time signal input port 52 is signally connected to the scan signal probe block 6 farthest from the first time signal input port 52 via a signal line.
  • the second time signal input port 53 is connected to the scan signal probe block 6 closest to the second time signal input port 53 through a signal line, and the adjacent two scan signal probe blocks 6 are connected between A signal line that transmits a second time signal.
  • the scan signal board 5 is used to sequentially transfer the second time signal from the scan signal probe block 6 near the input of the scan signal board 5 to the farthest scan signal probe block 6. More specifically, the TFT switching signal is input from the thin film transistor switching signal input port 51, and is transmitted in parallel through the signal line to each of the scanning signal flip chip 61, and the second clock signal is input from the scanning signal flip chip 61 side. The output is output from the other side, and then enters the scanning signal flip chip 61, and the scanning signal flip chip 61 is sequentially connected in series, and the first clock signal is directly input to the last scanning signal flip chip 61.
  • the conventional clock signal transmission path is that both the first clock signal and the second clock signal are input from the data signal terminal of the liquid crystal display panel 7, and are routed from the inside of the liquid crystal display panel 7. After being transmitted to the scanning signal probe block, it flows through the inside of the scanning signal probe block, and then is transmitted to the scanning signal probe block through the internal wiring of the liquid crystal display panel 7, and so on.
  • the clock signal is transmitted between the scanning signal probe block and the internal wiring of the liquid crystal display panel 7.
  • the alignment between the scanning signal probe block and the scanning signal terminal must be completely correct. If the alignment is inaccurate, the signal transmission fails.
  • the transmission mode of the clock signal between the scanning signal circuit board and the scanning signal probe block in the implementation of the present invention causes the signal transmission failure caused by the bit failure to be reduced to zero, so the PCB
  • the design makes the clock signal transmission more stable, which makes the scan signal transmission more stable, and finally makes the abnormal lighting situation lower.
  • the embodiment of the present invention further provides a lighting method, which utilizes the above lighting fixture, comprising the following operations: dividing a data signal and a scanning signal generated by a signal generator; and inputting the divided data signal to a liquid crystal display a data port of the panel; the shunt scan signal is input to a scan port of the liquid crystal display panel.
  • the signal (including the data signal and the drive signal) generated by the signal generator 1 is shunted by the data signal circuit board 2, and the data signal (such as the drive signal) is transmitted to the liquid crystal display panel 7 through the data signal probe block 4.
  • a scanning signal such as a clock signal, a TFT (Thin Film Transistor) switching signal is transmitted to the inside of the liquid crystal display panel 7 through the scanning signal circuit board 5 and the scanning signal probe block 6.
  • TFT Thin Film Transistor
  • the scan signal includes at least a first time signal and a second time signal
  • the method may further include: transmitting the first time signal to the scan signal probe block 6 remote from the input end of the scan signal circuit board; and The time signal is sequentially transmitted from all of the scanning signal probe blocks 6 from the scanning signal probe block 6 near the input of the scanning signal board.
  • the TFT switching signal is input from the thin film transistor switching signal input port 51, and is transmitted in parallel through the signal line to each of the scanning signal flip chip 61, and the second clock signal is input from the scanning signal flip chip 61 side, from the other The side output is then entered into the scanning signal flip chip 61, and the scanning signal flip chip 61 is sequentially connected in series, and the first clock signal is directly input to the last scanning signal flip chip 61.
  • the conventional clock signal transmission path is that both the first clock signal and the second clock signal are input from the data signal terminal of the liquid crystal display panel 7, and are transmitted from the internal wiring of the liquid crystal display panel 7 to the scanning signal probe block, and flow through After scanning the inside of the signal probe block, the internal wiring of the liquid crystal display panel 7 is transmitted to the scanning signal probe block, and so on.
  • the transmission of the clock signal between the scanning signal probe block and the internal wiring of the liquid crystal display panel 7, the scanning signal probe block and the scanning signal The alignment between the terminals must be completely correct. If the alignment is inaccurate, the signal transmission will fail.
  • the transmission mode of the clock signal between the scanning signal circuit board and the scanning signal probe block in the implementation of the present invention causes the signal transmission failure caused by the bit failure to be reduced to zero, so the PCB
  • the design makes the clock signal transmission more stable, which makes the scan signal transmission more stable, and finally makes the abnormal lighting situation lower.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Mathematical Physics (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal Display Device Control (AREA)

Abstract

一种点灯治具及点灯方法。该点灯治具包括：信号发生器(1)；与信号发生器(1)连接的数据信号电路板(2)，数据信号电路板(2)用于将数据信号及扫描信号分流；数据信号电路板(2)连接的至少一个数据信号探针块(4)；数据信号电路板(2)连接的扫描信号电路板(5)，扫描信号电路板连接有扫描信号探针块(6)。这种点灯治具提高了信号加载的稳定性。

Description

点灯治具及点灯方法 技术领域
本发明的实施例涉及一种点灯治具及点灯方法。
背景技术
对于面板在成盒之后的检查，一直是薄膜晶体管液晶显示(TFT-LCD)行业的重要测试工序。该工序不仅用于对前段工艺工序的不良及时进行反馈，也承担起淘汰不良产品，避免后工序资材浪费的重任。目前的检查方式主要分为全接触式检测和短路棒式。全接触式检测方式是目前比较流行的检测方式。
目前的点灯(加电使显示面板工作)治具设计中，驱动信号从数据信号接入点输入，公共电压Vcom信号也从数据信号接入点输入；时钟信号，薄膜晶体管(TFT)开关信号也从数据信号接入点输入。因此，数据信号接入点集几大功能在一起，因此结构变得十分复杂，所以也很容易损坏，造成异常点灯。
发明内容
本发明的实施例提供了一种点灯治具及点灯方法，用以提高点灯治具在点灯时的稳定性。
本发明的实施例提供了一种点灯治具，该点灯治具包括：信号发生器；与所述信号发生器连接的数据信号电路板，所述数据信号电路板用于将数据信号及扫描信号分流；与所述数据信号电路板连接的至少一个数据信号探针块，其中，分流的数据信号通过所述数据信号探针块输入到液晶显示面板的数据端口；与所述数据信号电路板连接的至少一个扫描信号电路板，其中，所述扫描信号电路板连接有扫描信号探针块，分流的扫描信号通过所述扫描信号探针块输入到所述液晶显示面板的扫描端口。
例如，在该点灯治具中，所述数据信号电路板通过柔性电路连接有印刷电路板，所述印刷电路板通过柔性电路与所述数据信号探针块连接。
例如，该点灯治具包括多个数据信号探针块。
例如，该点灯治具包括两个扫描信号电路板，且两个所述扫描信号电路板分别设置在所述液晶显示面板的两侧并分别通过信号探针块与所述液晶显示面板信号连接。
例如，在该点灯治具中，所述扫描信号电路板的一侧边设置有薄膜晶体管开关信号输入端口、第一时间信号输入端口和第二时间信号输入端口。
例如，在该点灯治具中，所述多个扫描信号探针块单排排列在所述扫描信号电路板上与所述第一时间信号输入端口设置侧相邻的一侧，且所述薄膜晶体管开关信号输入端口通过信号线与每个扫描信号探针块连接。
例如，在该点灯治具中，所述第一时间信号输入端口通过信号线与最远离所述第一时间信号输入端口的扫描信号探针块信号连接，所述第二时间信号输入端口通过信号线与最靠近所述第二时间信号输入端口的扫描信号探针块连接，且相邻的两个扫描信号探针块之间连接有用于传输第二时间信号的信号线。
例如，在该点灯治具中，所述扫描信号探针块包括扫描信号覆晶薄膜，以及与所述扫描信号覆晶薄膜通过柔性线路板连接的突出覆晶薄膜，其中，所述扫描信号覆晶薄膜与所述扫描信号电路板信号连接，所述突出覆晶薄膜与所述液晶显示面板信号连接。
例如，在该点灯治具中，所述数据信号电路板通过柔性电路板与所述扫描信号电路板信号连接。
本发明的实施例还提供了一种点灯方法，该方法包括以下操作：将信号发生器产生的数据信号及扫描信号分流；将分流的数据信号输入到液晶显示面板的数据端口；将分流的扫描信号输入到所述液晶显示面板的扫描端口。
例如，所述扫描信号至少包括第一时间信号和第二时间信号，该方法还包括：将所述第一时间信号传入到最远离所述扫描信号电路板的输入端的扫描信号探针块；并将所述第二时间信号从最靠近所述扫描信号电路板输入端的扫描信号探针块开始依次传递到所有的扫描信号探针块。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对实施例的附图作 简单地介绍，显而易见地，下面描述中的附图仅仅涉及本发明的一些实施例，而非对本发明的限制。
图1A和图1B为本发明实施例提供的点灯治具的结构框图；
图2为本发明实施例提供的点灯治具的扫描信号探针块的结构框图；
图3为本发明实施例提供的点灯治具的扫描信号电路板工作原理图。
附图标记：
1-信号发生器 2-数据信号电路板 3-印刷电路板
4-数据信号探针块 5-扫描信号电路板 51-薄膜晶体管开关信号输入端口
52-第一时间信号输入端口 53-第二时间信号输入端口
6-扫描信号探针块 61-扫描信号覆晶薄膜 62-突出覆晶薄膜
63-空端子 7-液晶显示面板 8、9、10、11-柔性电路板
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例的附图，对本发明实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本发明的一部分实施例，而不是全部的实施例。基于所描述的本发明的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本发明保护的范围。
除非另作定义，此处使用的技术术语或者科学术语应当为本发明所属领域内具有一般技能的人士所理解的通常意义。本公开中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。同样，“包括”或者“包含”等类似的词语意指出现该词前面的元件或者物件涵盖出现在该词后面列举的元件或者物件及其等同，而不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。“上”、“下”、“左”、“右”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也可能相应地改变。
图1A和图1B示出了本发明实施例提供的点灯治具的结构框图。
本发明实施例提供了一种点灯治具，参考图1A和图1B，该点灯治具包括：信号发生器1和与信号发生器1连接的数据信号电路板2。
数据信号电路板2用于将数据信号及扫描信号分流；数据信号电路板2连接有数据信号探针块4，分流的数据信号通过数据信号探针块4输入到被检测的液晶显示面板7的数据端口。数据信号电路板2还连接有扫描信号电路板5，扫描信号电路板5连接有扫描信号探针块6，分流的扫描信号通过扫描信号探针块6输入到被检测的液晶显示面板7的扫描端口。
在上述实施例中，信号发生器1产生的信号(包括数据信号和驱动信号)经过数据信号电路板2进行分流，数据信号(如驱动信号)通过数据信号探针块4传输到液晶显示面板7内部；扫描信号(如：时钟信号，TFT(薄膜晶体管)开关信号)通过扫描信号电路板5和扫描信号探针块6传输到液晶显示面板7内部。这种点灯信号传输方式，提高了信号加载的稳定性。
为了方便对本发明实施例提供的点灯治具的结构及工作原理的理解，下面结合附图以及具体的实施例对其进行详细的说明。
继续参考图1A和图1B，数据信号电路板2通过例如柔性电路板8连接有印刷电路板3，所述印刷电路板3通过例如柔性电路板9与所述数据信号探针4块连接。数据信号探针块4为多个，且多个数据信号探针块4单排排列。数据信号探针块4的个数可以根据被检测的液晶显示面板7的参数(例如分辨率)而设置。
参考图1A，在一个示例中，可以提供一个扫描信号电路板5，且该扫描信号电路板5设置在所述液晶显示面板7的一侧并分别通过与之对应的扫描信号探针块6与所述液晶显示面板7信号连接，该示例对应于单侧驱动的液晶显示面板；参考图1B，在一个示例中，可以提供两个扫描信号电路板5，且两个扫描信号电路板5分别设置在所述液晶显示面板7的两侧并分别通过与之对应的扫描信号探针块6与所述液晶显示面板7信号连接，该示例对应于双侧驱动的液晶显示面板。
数据信号和扫描信号从信号发生器1输出之后，被数据信号电路板2分流，数据信号通过印刷电路板3和数据信号探针块4输入到液晶显示面板7的数据线；扫描信号通过柔性电路板传输到扫描信号电路板5，再由扫描信号探针块6传输到液晶显示面板7的扫描信号线侧。通过上述描述可以看出，在上述实施例中，信号发生器1产生的信号经过数据信号电路板2进行分流，驱动信号通过数据信号探针块4传输到液晶显示面板7内部；时钟信号，TFT 开关信号等通过扫描信号电路板5和扫描信号探针块6传输到液晶显示面板7内部。这种点灯信号传输方式，提高了信号加载的稳定性。
示范性的扫描信号探针块6的结构如图2所示。扫描信号探针块6包括扫描信号覆晶薄膜61以及与扫描信号覆晶薄膜61连接的突出覆晶薄膜62。扫描信号覆晶薄膜61与扫描信号电路板5通过柔性电路板11连接，突出覆晶薄膜62与液晶显示面板7信号连接。扫描信号电路板5通过柔性电路板10与数据信号电路板2连接。并将扫描信号传送至扫描信号覆晶薄膜61；柔性电路板11与扫描信号覆晶薄膜61的两侧连接；同时输入到每一行栅线的信号，由扫描信号覆晶薄膜61通过突出覆晶薄膜62传输到液晶显示面板7上，如图2中所示，扫描信号覆晶薄膜61的中间扫描信号与突出覆晶薄膜62连接。突出覆晶薄膜62两侧可以设置有空端子63，该空端子63用于与液晶显示屏7上的端子进行对位，并不进行信号传输。
示范性的扫描信号电路板5的设计见图3所示。所述扫描信号电路板5的一侧边设置有薄膜晶体管开关信号输入端口51、第一时间信号输入端口52和第二时间信号输入端口53。多个扫描信号探针块6单排排列在扫描信号电路板上与所述第一时间信号输入端口52设置侧相邻的一侧，且所述薄膜晶体管开关信号输入端口51通过信号线与每个扫描信号探针块连接。所述第一时间信号输入端口52通过信号线与最远离所述第一时间信号输入端口52的扫描信号探针块6信号连接。所述第二时间信号输入端口53通过信号线与最靠近所述第二时间信号输入端口53的扫描信号探针块6连接，且相邻的两个扫描信号探针块6之间连接有用于传输第二时间信号的信号线。
在使用时，扫描信号电路板5用于将第二时间信号从靠近扫描信号电路板5输入端的扫描信号探针块6开始依次传递到最远端的扫描信号探针块6。更具体而言，TFT开关信号从薄膜晶体管开关信号输入端口51输入，并通过信号线并联传输到每个扫描信号覆晶薄膜61中，第二时钟信号从扫描信号覆晶薄膜61一侧输入，从另外一侧输出，然后进入扫描信号覆晶薄膜61，依次把扫描信号覆晶薄膜61串联起来，第一时钟信号直接输入到最后一个扫描信号覆晶薄膜61中。
与之相对地，传统的时钟信号传输路径是：第一时钟信号和第二时钟信号都是从液晶显示面板7的数据信号端子输入，从液晶显示面板7内部走线 传输至扫描信号探针块，流经扫描信号探针块内部后，再通过液晶显示面板7内部走线传输至扫描信号探针块，依次类推。时钟信号在扫描信号探针块和液晶显示面板7内部走线间的传递，扫描信号探针块和扫描信号端子间必须对位完全正确，一旦出现对位不准确，则会信号传输失败。
由上述描述可以看出，在本发明实施中的这种扫描信号电路板和扫描信号探针块间时钟信号的传输方式，使得对位失败而导致的信号传输失败降低为零，所以这种PCB设计使得时钟信号传输更稳定，从而使扫描信号传输更稳定，最终使得异常点灯情况降低。
此外，本发明实施例还提供了一种点灯方法，该点灯方法利用上述的点灯治具，包括以下操作：将信号发生器产生的数据信号及扫描信号分流；将分流的数据信号输入到液晶显示面板的数据端口；将分流的扫描信号输入到所述液晶显示面板的扫描端口。
在上述实施例中，信号发生器1产生的信号(包括数据信号和驱动信号)经过数据信号电路板2进行分流，数据信号(如驱动信号)通过数据信号探针块4传输到液晶显示面板7内部；扫描信号(如：时钟信号，TFT(薄膜晶体管)开关信号)通过扫描信号电路板5和扫描信号探针块6传输到液晶显示面板7内部。这种点灯信号传输方式，提高了信号加载的稳定性。
例如，扫描信号至少包括第一时间信号和第二时间信号，且该方法还可以包括：将第一时间信号传入到远离扫描信号电路板的输入端的扫描信号探针块6；并将第二时间信号从靠近扫描信号电路板输入端的扫描信号探针块6开始依次传递到所有的扫描信号探针块6。
例如，TFT开关信号从薄膜晶体管开关信号输入端口51输入，并通过信号线并联传输到每个扫描信号覆晶薄膜61中，第二时钟信号从扫描信号覆晶薄膜61一侧输入，从另外一侧输出，然后进入扫描信号覆晶薄膜61，依次把扫描信号覆晶薄膜61串联起来，第一时钟信号直接输入到最后一个扫描信号覆晶薄膜61中。但是，传统的时钟信号传输路径是：第一时钟信号和第二时钟信号都是从液晶显示面板7的数据信号端子输入，从液晶显示面板7内部走线传输至扫描信号探针块，流经扫描信号探针块内部后，再通过液晶显示面板7内部走线传输至扫描信号探针块，依次类推。时钟信号在扫描信号探针块和液晶显示面板7内部走线间的传递，扫描信号探针块和扫描信号 端子间必须对位完全正确，一旦出现对位不准确，则会信号传输失败。由上述描述可以看出，在本发明实施中的这种扫描信号电路板和扫描信号探针块间时钟信号的传输方式，使得对位失败而导致的信号传输失败降低为零，所以这种PCB设计使得时钟信号传输更稳定，从而使扫描信号传输更稳定，最终使得异常点灯情况降低。
以上所述仅是本发明的示范性实施方式，而非用于限制本发明的保护范围，本发明的保护范围由所附的权利要求确定。
本申请要求于2016年1月29日递交的中国专利申请第201610065927.2号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。

Claims (11)

  1. 一种点灯治具，包括：
    信号发生器；
    与所述信号发生器连接的数据信号电路板，所述数据信号电路板用于将数据信号及扫描信号分流；
    与所述数据信号电路板连接的至少一个数据信号探针块，其中，分流的数据信号通过所述数据信号探针块输入到液晶显示面板的数据端口；和
    与所述数据信号电路板连接的至少一个扫描信号电路板，其中，所述扫描信号电路板连接有扫描信号探针块，分流的扫描信号通过所述扫描信号探针块输入到所述液晶显示面板的扫描端口。
  2. 如权利要求1所述的点灯治具，其中，所述数据信号电路板通过柔性电路板连接有印刷电路板，所述印刷电路板通过柔性电路板与所述数据信号探针块连接。
  3. 如权利要求2所述的点灯治具，包括多个数据信号探针块。
  4. 如权利要求1～3任一项所述的点灯治具，包括两个扫描信号电路板，其中，两个所述扫描信号电路板分别设置在所述液晶显示面板的两侧并分别通过信号探针块与所述液晶显示面板信号连接。
  5. 如权利要求1～4任一项所述的点灯治具，其中，所述扫描信号电路板的一侧边设置有薄膜晶体管开关信号输入端口、第一时间信号输入端口和第二时间信号输入端口。
  6. 如权利要求5所述的点灯治具，其中，所述多个扫描信号探针块单排排列在所述扫描信号电路板上与所述第一时间信号输入端口设置侧相邻的一侧，且所述薄膜晶体管开关信号输入端口通过信号线与每个扫描信号探针块连接。
  7. 如权利要求6所述的点灯治具，其中，所述第一时间信号输入端口通过信号线与最远离所述第一时间信号输入端口的扫描信号探针块信号连接，所述第二时间信号输入端口通过信号线与最靠近所述第二时间信号输入端口的扫描信号探针块连接，且相邻的两个扫描信号探针块之间连接有用于传输第二时间信号的信号线。
  8. 如权利要求5所述的点灯治具，其中，所述扫描信号探针块包括扫描信号覆晶薄膜，以及与所述扫描信号覆晶薄膜通过柔性电路板连接的突出覆晶薄膜，
    其中，所述扫描信号覆晶薄膜与所述扫描信号电路板信号连接，所述突出覆晶薄膜与所述液晶显示面板信号连接。
  9. 如权利要求8所述的点灯治具，其中，所述数据信号电路板通过柔性电路板与所述扫描信号电路板信号连接。
  10. 一种点灯方法，包括：
    将信号发生器产生的数据信号及扫描信号分流；
    将分流的数据信号输入到液晶显示面板的数据端口；
    将分流的扫描信号输入到所述液晶显示面板的扫描端口。
  11. 如权利要求10所述的点灯方法，其中，所述扫描信号至少包括第一时间信号和第二时间信号，所述点灯方法还包括：
    将所述第一时间信号传入到最远离所述扫描信号电路板的输入端的扫描信号探针块；
    并将所述第二时间信号从最靠近所述扫描信号电路板输入端的扫描信号探针块开始依次传递到所有的扫描信号探针块。
PCT/CN2016/102859 2016-01-29 2016-10-21 点灯治具及点灯方法 Ceased WO2017128778A1 (zh)

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