WO2017161672A1 - 液晶显示面板及其静电放电电路 - Google Patents

液晶显示面板及其静电放电电路 Download PDF

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Publication number
WO2017161672A1
WO2017161672A1 PCT/CN2016/083323 CN2016083323W WO2017161672A1 WO 2017161672 A1 WO2017161672 A1 WO 2017161672A1 CN 2016083323 W CN2016083323 W CN 2016083323W WO 2017161672 A1 WO2017161672 A1 WO 2017161672A1
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Prior art keywords
crystal display
display panel
liquid crystal
lines
discharge circuit
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English (en)
French (fr)
Inventor
王明良
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Priority to US15/114,681 priority Critical patent/US20170277006A1/en
Publication of WO2017161672A1 publication Critical patent/WO2017161672A1/zh
Anticipated expiration legal-status Critical
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    • 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
    • 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
    • G02F2202/00—Materials and properties
    • G02F2202/22—Antistatic materials or arrangements

Definitions

  • the present invention relates to a circuit, and in particular to an electrostatic discharge circuit and a liquid crystal display panel having the same.
  • Liquid crystal displays have been widely used due to their advantages of light weight, thin thickness, and low power consumption.
  • ESD electrostatic discharge
  • an object of the present invention is to provide an electrostatic discharge circuit disposed on a liquid crystal display panel, the electrostatic discharge circuit including: a grounding wire disposed on a data driver of the liquid crystal display panel Wherein the ground line is electrically grounded; and a plurality of discharge lines are disposed in the display area of the liquid crystal display panel and connected to the ground line.
  • the plurality of discharge lines are connected together.
  • the electrostatic discharge circuit further includes: a closed loop line disposed around an edge of the display area; wherein the closed loop line is connected to the plurality of discharge lines.
  • each of the discharge lines is parallel to the extending direction of the data lines in the display area.
  • Another object of the present invention is to provide a liquid crystal display panel including: a display area; a data driver disposed on one side of the display area; a ground line disposed on the data driver; wherein the ground line Electrically grounded; a plurality of discharge lines disposed in the display area and connected to the ground line.
  • the liquid crystal display panel further includes: a closed loop line disposed around an edge of the display area; wherein the closed loop line is connected to the plurality of discharge lines.
  • the liquid crystal panel further includes: a plurality of data lines disposed in the display area and connected to the data driver; wherein an extending direction of each of the discharge lines is parallel to an extending direction of the data lines.
  • an electrostatic discharge circuit covers a display area and a data driver on a liquid crystal display panel, and is infinitely close to the gate driver by a closed loop line, so that each active component on the entire liquid crystal display panel,
  • Each line has a distribution of the nearest grounding wire (such as closed loop, grounding wire, discharge wire, etc.).
  • grounding wire such as closed loop, grounding wire, discharge wire, etc.
  • FIG. 1 is a schematic structural view of a liquid crystal display panel according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural view of a liquid crystal display panel configured with an electrostatic discharge circuit according to an embodiment of the present invention.
  • FIG. 1 is a schematic structural view of a liquid crystal display panel according to an embodiment of the present invention.
  • a liquid crystal display panel includes a plurality of data lines DL parallel to each other and a plurality of scanning lines GL parallel to each other, wherein the scanning lines GL are perpendicular to the data lines DL. Further, the scanning line GL and the data line DL divide the display area 10 of the liquid crystal display panel into a plurality of pixel regions 12.
  • An active component (not shown) is disposed within each of the pixel regions 12, which may be, for example, a thin film transistor or other active component.
  • a plurality of gate drivers 20 are respectively disposed on opposite sides of the display area 10, and two data drivers 30 are disposed on a side of the display area 10 adjacent to the opposite sides; here, the gate driver 20 and the data driver 30
  • the arrangement and the number are merely examples, and the present invention is not limited thereto.
  • the scan line GL is connected to the corresponding gate driver 20 to receive the gate signal; the data line DL is connected to the corresponding data driver 30 to receive the data signal.
  • FIG. 2 is a schematic structural view of a liquid crystal display panel configured with an electrostatic discharge circuit according to an embodiment of the present invention.
  • the scan line GL, the data line DL, and the pixel region 12 are omitted.
  • an electrostatic discharge circuit includes a ground line 40 disposed on a data driver 30 and a discharge line 50 disposed in the display region 10.
  • a grounding wire 40 is disposed on each of the data drivers 30, and each of the grounding wires 40 is electrically grounded.
  • the number of the grounding wires 40 in the present invention is not limited thereto, and may be, for example, two.
  • a ground line spanning the two data drivers 30 is provided on the data driver 30.
  • a plurality of discharge lines 50 are disposed in the display area 10; wherein a portion of the discharge lines 50 are connected to one of the two ground lines 40, and the remaining portion of the discharge lines 50 are connected to the other of the two ground lines 40.
  • the extending direction of each of the discharge lines 50 is parallel to the extending direction of the data lines DL, but the present invention is not limited thereto.
  • the extending direction of each of the discharge lines 50 may be parallel to the scanning. The direction in which the line GL extends.
  • the electrostatic discharge circuit according to an embodiment of the present invention further includes a closed loop 60.
  • the closed loop line 60 is circumferentially disposed at the edge of the display area 10, and the closed loop line 60 is connected to the plurality of discharge lines 50.
  • the electrostatic discharge circuit of the embodiment covers the display area and the data driver on the liquid crystal display panel, and uses the closed loop line to infinitely approach the gate driver, so that each active component and each piece on the entire liquid crystal display panel
  • the line has a recent grounding line (such as closed loop line, ground line, discharge line, etc.) distributed. When static electricity is generated, these destructive electrostatic energy can be introduced into the earth from the nearest grounding line to protect the liquid crystal display. Electronic components on the panel.

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

Abstract

一种静电放电电路和具有该静电放电电路的液晶显示面板，该静电放电电路设置于液晶显示面板上，其中，所述静电放电电路包括：设置于所述液晶显示面板的数据驱动器（30）上的接地线（40），所述接地线（40）电性接地；设置于所述液晶显示面板的显示区（10）中且与所述接地线（40）连接的多条放电线（50）。该静电放电电路覆盖了液晶显示面板上的显示区（10）和数据驱动器（30），这样使得整个液晶显示面板上的每个主动组件、每条线都有一最近的走地线(诸如闭环线、接地线、放电线等)分布，当产生静电时，这些破坏性的静电能量可以由就近的走地线导入到大地中去，从而保护液晶显示面板上的电子元器件，提高液晶显示面板的良率。

Description

液晶显示面板及其静电放电电路 技术领域
本发明涉及一种电路，具体地讲，涉及一种静电放电电路以及具有该静电放电电路的液晶显示面板。
背景技术
液晶显示器(Liquid Crystal Display，LCD)因其具有重量轻、厚度薄、功耗小等优点，已被广泛普及使用。然而，在液晶显示器的生产制作过程中，由于静电放电(ESD)击伤造成的不良率一直居高不下，甚至已经成为了液晶显示器排行第一的不良因素。
尽管目前所有的液晶显示器生产线上都实现了严格的防静电措施，例如采用无尘服和洁净度控制，并加上保湿和离子风扇的使用，然而静电依旧时时刻刻威胁着液晶显示器的生产良率，甚至威胁着终端用户使用液晶显示器的寿命。
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静电放电电路，设置于液晶显示面板上，所述静电放电电路包括：设置于所述液晶显示面板的数据驱动器上的接地线；其中，所述接地线电性接地；设置于所述液晶显示面板的显示区中且与所述接地线连接的多条放电线。
进一步地，所述多条放电线连接在一起。
进一步地，所述静电放电电路还包括：环绕设置于所述显示区边缘的闭环线；其中，所述闭环线与所述多条放电线连接。
进一步地，每条放电线的延伸方向平行于所述显示区中的数据线的延伸方向。
本发明的另一目的还在于提供一种液晶显示面板，其包括：显示区；设置于所述显示区一侧的数据驱动器；设置于所述数据驱动器上的接地线；其中，所述接地线电性接地；设置于所述显示区中且与所述接地线连接的多条放电线。
进一步地，所述液晶显示面板还包括：环绕设置于所述显示区边缘的闭环线；其中，所述闭环线与所述多条放电线连接。
进一步地，所述液晶面板还包括：设置于所述显示区中且与所述数据驱动器连接的多条数据线；其中，每条放电线的延伸方向平行于所述数据线的延伸方向。
本发明的有益效果：在本发明中，静电放电电路覆盖了液晶显示面板上的显示区和数据驱动器，并利用闭环线无限靠近栅极驱动器，这样使得整个液晶显示面板上的每个主动组件、每条线都有一最近的走地线(诸如闭环线、接地线、放电线等)分布，当产生静电时，这些破坏性的静电能量可以由就近的走地线导入到大地中去，从而保护液晶显示面板上的电子元器件。
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是根据本发明的实施例的液晶显示面板的结构示意图；
图2是根据本发明的实施例的配置有静电放电电路的液晶显示面板的结构示意图。
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。
图1是根据本发明的实施例的液晶显示面板的结构示意图。
参照图1，根据本发明的实施例的液晶显示面板包括：相互平行的多条数据线DL以及相互平行的多条扫描线GL，其中，扫描线GL垂直于数据线DL。此外，扫描线GL与数据线DL是将液晶显示面板的显示区10划分成多个像素区12。每个像素区12内配置有一个主动组件(图中未示出)，其可例如是薄膜晶体管或者其它主动组件。
在显示区10的相对两侧分别布置多个栅极驱动器20，并且在显示区10的与该相对两侧相邻的一侧布置两个数据驱动器30；这里，栅极驱动器20和数据驱动器30的布置及数量仅作为一种示例，本发明并不局限于此。其中，扫描线GL连接到对应的栅极驱动器20，以接收栅极信号；数据线DL连接到对应的数据驱动器30，以接收数据信号。
图2是根据本发明的实施例的配置有静电放电电路的液晶显示面板的结构示意图。在图2中，为了便于静电放电电路的展示，略去了扫描线GL、数据线DL以及像素区12。
参照图1和图2，根据本发明的实施例的静电放电电路包括：设置于数据驱动器30上的接地线40以及设置于显示区10中的放电线50。
在本实施例中，在每个数据驱动器30上设置一条接地线40，并且每条接地线40电性接地，但本发明中接地线40的数量并不以此为限，例如可以在两个数据驱动器30上设置一条横跨两个数据驱动器30的接地线。
在显示区10中设置多条放电线50；其中，一部分放电线50连接到两条接地线40之一，剩余部分放电线50连接到两条接地线40之另一。
优选地，在本实施例中，每条放电线50的延伸方向平行于数据线DL的延伸方向，但本发明并不限制于此，例如，每条放电线50的延伸方向也可平行于扫描线GL的延伸方向。
进一步地，这些放电线50全部连接在一起。具体地，根据本发明的实施例的静电放电电路还包括闭环线60。其中，闭环线60环绕设置在显示区10的边缘，并且闭环线60与所述多条放电线50连接。
综上所述，本实施例的静电放电电路覆盖了液晶显示面板上的显示区和数据驱动器，并利用闭环线无限靠近栅极驱动器，这样使得整个液晶显示面板上的每个主动组件、每条线都有一最近的走地线(诸如闭环线、接地线、放电线等)分布，当产生静电时，这些破坏性的静电能量可以由就近的走地线导入到大地中去，从而保护液晶显示面板上的电子元器件。
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 (16)

  1. 一种静电放电电路，设置于液晶显示面板上，其中，所述静电放电电路包括：
    设置于所述液晶显示面板的数据驱动器上的接地线；其中，所述接地线电性接地；
    设置于所述液晶显示面板的显示区中且与所述接地线连接的多条放电线。
  2. 根据权利要求1所述的静电放电电路，其中，所述多条放电线连接在一起。
  3. 根据权利要求1所述的静电放电电路，其中，所述静电放电电路还包括：环绕设置于所述显示区边缘的闭环线；其中，所述闭环线与所述多条放电线连接。
  4. 根据权利要求2所述的静电放电电路，其中，所述静电放电电路还包括：环绕设置于所述显示区边缘的闭环线；其中，所述闭环线与所述多条放电线连接。
  5. 根据权利要求1所述的静电放电电路，其中，每条放电线的延伸方向平行于所述显示区中的数据线的延伸方向。
  6. 根据权利要求2所述的静电放电电路，其中，每条放电线的延伸方向平行于所述显示区中的数据线的延伸方向。
  7. 根据权利要求3所述的静电放电电路，其中，每条放电线的延伸方向平行于所述显示区中的数据线的延伸方向。
  8. 根据权利要求4所述的静电放电电路，其中，每条放电线的延伸方向平行于所述显示区中的数据线的延伸方向。
  9. 一种液晶显示面板，其中，包括：
    显示区；
    设置于所述显示区一侧的数据驱动器；
    设置于所述数据驱动器上的接地线；其中，所述接地线电性接地；
    设置于所述显示区中且与所述接地线连接的多条放电线。
  10. 根据权利要求9所述的液晶显示面板，其中，所述多条放电线连接在一起。
  11. 根据权利要求9所述的液晶显示面板，其中，所述液晶显示面板还包括：环绕设置于所述显示区边缘的闭环线；其中，所述闭环线与所述多条放电线连接。
  12. 根据权利要求10所述的液晶显示面板，其中，所述液晶显示面板还包括：环绕设置于所述显示区边缘的闭环线；其中，所述闭环线与所述多条放电线连接。
  13. 根据权利要求9所述的液晶显示面板，其中，所述液晶面板还包括：设置于所述显示区中且与所述数据驱动器连接的多条数据线；其中，每条放电线的延伸方向平行于所述数据线的延伸方向。
  14. 根据权利要求10所述的液晶显示面板，其中，所述液晶面板还包括：设置于所述显示区中且与所述数据驱动器连接的多条数据线；其中，每条放电线的延伸方向平行于所述数据线的延伸方向。
  15. 根据权利要求11所述的液晶显示面板，其中，所述液晶面板还包括：设置于所述显示区中且与所述数据驱动器连接的多条数据线；其中，每条放电线的延伸方向平行于所述数据线的延伸方向。
  16. 根据权利要求12所述的液晶显示面板，其中，所述液晶面板还包括：设置于所述显示区中且与所述数据驱动器连接的多条数据线；其中，每条放电线的延伸方向平行于所述数据线的延伸方向。
PCT/CN2016/083323 2016-03-25 2016-05-25 液晶显示面板及其静电放电电路 Ceased WO2017161672A1 (zh)

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