WO2020215549A1 - 显示装置 - Google Patents

显示装置 Download PDF

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Publication number
WO2020215549A1
WO2020215549A1 PCT/CN2019/102140 CN2019102140W WO2020215549A1 WO 2020215549 A1 WO2020215549 A1 WO 2020215549A1 CN 2019102140 W CN2019102140 W CN 2019102140W WO 2020215549 A1 WO2020215549 A1 WO 2020215549A1
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WO
WIPO (PCT)
Prior art keywords
chip
output terminal
electrically connected
display device
goa
Prior art date
Application number
PCT/CN2019/102140
Other languages
English (en)
French (fr)
Inventor
田新斌
徐向阳
Original Assignee
深圳市华星光电技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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
Publication of WO2020215549A1 publication Critical patent/WO2020215549A1/zh

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—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
    • 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
    • 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
    • G02F1/1345—Conductors connecting electrodes to cell terminals
    • G02F1/13452—Conductors connecting driver circuitry and terminals of panels
    • 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
    • G02F1/1345—Conductors connecting electrodes to cell terminals
    • G02F1/13454—Drivers integrated on the active matrix substrate
    • 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
    • G09G3/22—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 using controlled light sources
    • G09G3/30—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 using controlled light sources using electroluminescent panels
    • G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • 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
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] 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
    • G02F2202/00—Materials and properties
    • G02F2202/22—Antistatic materials or arrangements

Definitions

  • the present invention relates to the field of display technology, and in particular to a display device.
  • liquid crystal display devices Liquid Crystal Display, LCD
  • organic light emitting diode display devices Organic Light Flat panel display devices such as Emitting Display (OLED)
  • CRT cathode ray tube
  • the liquid crystal display device has many advantages such as thin body, power saving, and no radiation, and has been widely used.
  • liquid crystal display devices which include liquid crystal display panels and backlight modules (backlight module).
  • the LCD panel is composed of a color filter (CF) substrate, thin film transistor (Thin Film Transistor, TFT) array substrate, liquid crystal (Liquid) sandwiched between the color filter substrate and the thin film transistor array substrate Crystal, LC) and sealant frame (Sealant).
  • the working principle of the liquid crystal display panel is to place liquid crystal molecules between two parallel glass substrates. There are many vertical and horizontal small wires between the two glass substrates. The liquid crystal molecules are controlled to change direction by powering on or not, and the light of the backlight module Refraction produces a picture.
  • GOA(Gate Driver on Array) technology is the array substrate row drive technology, which uses the array process to fabricate the gate scanning drive circuit on the thin film transistor array substrate to realize the progressive scanning drive mode, which has the advantages of reducing production costs and realizing the narrow frame design of the panel , Used by a variety of displays.
  • an existing display device includes a display panel 910, a plurality of chip on film (COF) 920 electrically connected to the display panel 910, and a printed circuit board electrically connected to the plurality of chip on film 920 (PCB) 930.
  • each of the two outermost two flip-chip films 920 includes a substrate 921, a plurality of output terminals 922 arranged on the substrate 921 at intervals, and a source driver chip 923 arranged on the substrate 921 .
  • the multiple output terminals 922 include multiple GOA signal output terminals 9221 and multiple data signal output terminals 9222.
  • Each GOA signal output terminal 9221 is electrically connected to the GOA circuit in the display panel 910 and is connected to a GOA control signal
  • each data signal output terminal 9222 is electrically connected to a data line in the display panel 910
  • the source driver chip 923 is electrically connected
  • the multiple data signal output terminals 9222 are electrically connected
  • the source driver chip 923 includes an electrostatic discharge module 9231 electrically connected to the multiple data signal output terminals 9222, respectively, for the voltage on the corresponding data signal output terminal 9222 is greater than The discharge is performed at the preset voltage to prevent static electricity from being input into the display panel 910 through the data signal output terminal 9222.
  • the GOA signal output terminal 9221 is not treated with anti-static treatment, and the electrostatic protection ability is low.
  • the external static electricity will enter the display panel 910 through the GOA signal output terminal 9221 and cause electrostatic discharge (ESD).
  • ESD electrostatic discharge
  • the display device is damaged by static electricity, which reduces the product yield and quality.
  • the object of the present invention is to provide a display device, which can prevent static electricity from being input to the display panel through the GOA signal output terminal to cause electrostatic damage to the display device, and has a high electrostatic protection capability.
  • the present invention provides a display device including a display panel and at least one first flip-chip film electrically connected to the display panel;
  • the display panel includes a plurality of parallel and spaced data lines and a GOA circuit located outside the area where the plurality of data lines are located;
  • Each first flip chip film includes a first substrate, a plurality of first output terminals spaced apart on the first substrate, and a first output terminal that is provided on the first substrate and electrically connected to the plurality of first output terminals.
  • Source driver chip
  • the plurality of first output terminals includes a plurality of GOA signal output terminals and a plurality of first data signal output terminals; each GOA signal output terminal is electrically connected to the GOA circuit and connected to the GOA control signal; each first data signal output Terminal is electrically connected to a data line; the first source driver chip includes a plurality of first electrostatic discharge modules respectively corresponding to the plurality of first output terminals electrically connected, and each first electrostatic discharge module is in the corresponding When the voltage on the first output terminal exceeds the preset threshold, it is discharged.
  • the first electrostatic discharge module includes a first TVS diode; the negative electrode of the first TVS diode is electrically connected to the corresponding first output terminal, and the positive electrode is grounded.
  • the display device further includes a plurality of second flip-chip films electrically connected to the display panel;
  • Each second flip chip film includes a second substrate, a plurality of second output terminals arranged on the second substrate at intervals, and a second output terminal arranged on the second substrate and electrically connected to the plurality of second output terminals.
  • the second electrostatic discharge module includes a second TVS diode; the cathode of the second TVS diode is electrically connected to the corresponding second output terminal, and the anode is grounded.
  • each first flip chip film a plurality of first output terminals are arranged in a row; in each second flip chip film, a plurality of second output terminals are arranged in a row; the shape of the first output terminal is rectangular, and the shape of the second output terminal The shape is rectangular.
  • the first chip on film and the second chip on film are located at the same end of the display panel and arranged in a row.
  • the number of the first chip on film is two, and the two first chip on film are located on both sides of the area where the plurality of second chip on film are located.
  • the GOA circuit includes two sub-GOA circuits respectively located on both sides of the area where multiple data lines are located; each first flip-chip film corresponds to a sub-GOA circuit; the GOA signal output terminal in each first flip-chip film Connect the corresponding sub GOA circuit.
  • the display panel is a liquid crystal panel or an OLED panel.
  • multiple GOA signal output terminals include a clock signal output terminal and a start signal output terminal.
  • the GOA control signal connected to the clock signal output terminal is a clock signal, and the start signal output terminal The connected GOA control signal is the start signal.
  • the display device of the present invention includes a display panel and at least one first flip-chip film electrically connected to the display panel, and each first flip-chip film includes a first substrate, a plurality of first output terminals, and
  • the first source driver chip the plurality of first output terminals include a plurality of GOA signal output terminals and a plurality of first data signal output terminals, each GOA signal output terminal is electrically connected to the GOA circuit and connected to the GOA control signal.
  • the source driver chip includes a plurality of first electrostatic discharge modules respectively corresponding to the plurality of first output terminals electrically connected, and each first electrostatic discharge module responds when the voltage on the corresponding first output terminal exceeds a preset threshold. Discharging can prevent static electricity from being input to the display panel through the GOA signal output terminal to cause electrostatic damage to the display device, and has a high electrostatic protection capability.
  • FIG. 1 is a schematic diagram of the structure of a conventional display device
  • FIG. 2 is a schematic diagram of the structure of the outermost chip on film of the display device shown in FIG. 1;
  • FIG. 3 is a schematic diagram of the structure of the display device of the present invention.
  • FIG. 4 is a schematic diagram of the structure of the first chip on film of the display device of the present invention.
  • FIG. 5 is a schematic diagram of the structure of the first electrostatic discharge module of the display device of the present invention.
  • FIG. 6 is a schematic diagram of the structure of the second chip on film of the display device of the present invention.
  • FIG. 7 is a schematic structural diagram of a second electrostatic discharge module of the display device of the present invention.
  • the present invention provides a display device including a display panel 1 and at least one first flip-chip film 2 electrically connected to the display panel 1.
  • the display panel 1 includes a plurality of parallel and spaced data lines 11 and a GOA circuit 12 located outside the area where the plurality of data lines 11 are located.
  • each first flip-chip film 2 includes a first substrate 21, a plurality of first output terminals 22 disposed on the first substrate 21 at intervals, and a plurality of first output terminals 22 disposed on the first substrate 21.
  • the first source driver chip 23 is electrically connected to the first output terminal 22.
  • the plurality of first output terminals 22 include a plurality of GOA signal output terminals 221 and a plurality of first data signal output terminals 222.
  • Each GOA signal output terminal 221 is electrically connected to the GOA circuit 12 and is connected to the GOA control signal to transmit the GOA control signal to the GOA circuit 12.
  • Each first data signal output terminal 222 is correspondingly electrically connected to a data line 11.
  • the first source driver chip 23 includes a plurality of first electrostatic discharge modules 231 respectively corresponding to the plurality of first output terminals 22 electrically connected, and each first electrostatic discharge module 231 is located on the corresponding first output terminal 22 When the voltage exceeds the preset threshold, discharge it.
  • the first electrostatic discharge module 231 includes a first transient suppression (TVS) diode D1.
  • the negative pole of the first TVS diode D1 is electrically connected to the corresponding first output terminal 22, and the positive pole is grounded.
  • the first TVS diode D1 is turned on to ground the first output terminal 22, so as to discharge the first output terminal 22 to achieve the effect of electrostatic discharge.
  • the first electrostatic discharge module 231 may also adopt other commonly used structures with electrostatic discharge function, and the implementation of the present invention will not be affected.
  • the display device further includes a plurality of second flip-chip films 3 electrically connected to the display panel 1.
  • each second flip-chip film 3 includes a second substrate 31, a plurality of second output terminals 32 disposed on the second substrate 31 at intervals, and a plurality of second output terminals 32 disposed on the second substrate 31.
  • the second source driver chip 33 is electrically connected to the second output terminal 32.
  • Each second output terminal 32 is electrically connected to a data line 11 correspondingly.
  • the second source driver chip 33 includes a plurality of second electrostatic discharge modules 331 respectively corresponding to the plurality of second output terminals 32 electrically connected, and each second electrostatic discharge module 331 is located on the corresponding second output terminal 32 When the voltage exceeds the preset threshold, discharge it.
  • the second electrostatic discharge module 331 includes a second TVS diode D2.
  • the negative electrode of the second TVS diode D2 is electrically connected to the corresponding second output terminal 32, and the anode is grounded.
  • the second TVS diode D2 is turned on to ground the second output terminal 32, so as to discharge the second output terminal 32 to achieve the effect of electrostatic discharge.
  • the second electrostatic discharge module 331 may also adopt other commonly used structures with electrostatic discharge function, and the implementation of the present invention will not be affected.
  • each first chip on film 2 a plurality of first output terminals 22 are arranged in a row.
  • a plurality of second output terminals 32 are arranged in a row.
  • the shape of the first output terminal 22 is rectangular, and referring to FIG. 6, the shape of the second output terminal 32 is rectangular.
  • the first chip on film 2 and the second chip on film 3 are located at the same end of the display panel 1 and lined up in a row.
  • the number of the first chip on film 2 is two, and the two first chip on film 2 are located on both sides of the area where the plurality of second chip on film 3 are located.
  • the display device further includes two printed circuit boards 4 spaced apart.
  • the two printed circuit boards 4 are located on the first chip on film 2 and the second chip on film 3 away from the display panel 1.
  • the two first chip-on-chip films 2 are respectively connected to two printed circuit boards 4, and each second chip-on-chip film 3 is electrically connected to one of the two printed circuit boards 4, and the two printed circuit boards 4 are used for It transmits data signals to the first source driver chip 23 in the first chip on film 2 and the second source driver chip 33 in the second chip on film 3, and outputs the GOA signal to the first chip on film 2
  • the terminal 221 provides a GOA control signal.
  • the display panel 1 may be a liquid crystal panel or an OLED panel, that is, the display device of the present invention may be a liquid crystal display device or an OLED display device.
  • the plurality of GOA signal output terminals 221 include a clock signal output terminal and a start signal output terminal.
  • the GOA control signal connected to the clock signal output terminal is a clock signal.
  • the GOA control signal connected to the start signal output terminal is the start signal.
  • the display device of the present invention includes a display panel 1 and at least one first flip-chip film 2 electrically connected to the display panel 1.
  • Each first flip-chip film 2 includes a first substrate 21 and a plurality of An output terminal 22 and a first source driver chip 23.
  • the first output terminals 22 include a plurality of GOA signal output terminals 221 and a plurality of first data signal output terminals 222, and each GOA signal output terminal 221 is electrically connected to the GOA
  • the circuit 12 is also connected to the GOA control signal to transmit the GOA control signal to the GOA circuit 12.
  • the first source driver chip 23 includes a plurality of first electrostatic discharge modules 231 which are respectively electrically connected to the plurality of first output terminals 22, each A first electrostatic discharge module 231 discharges when the voltage on the corresponding first output terminal 22 exceeds a preset threshold, that is, in the present invention, the first source driver chip 23 not only has the ability to connect to the data line 11
  • the first data signal output terminal 222 of the first data signal output terminal 222 for electrostatic discharge also has a module for electrostatic discharge of the GOA signal output terminal 221 connected to the GOA circuit 12 to transmit GOA control signals to it. Compared with the prior art, it can avoid static electricity. Inputting the display panel 1 through the GOA signal output terminal causes the display device to generate electrostatic damage, thereby greatly improving the electrostatic protection capability of the display device and improving the quality of the display device.
  • the display device of the present invention includes a display panel and at least one first flip-chip film electrically connected to the display panel.
  • Each first flip-chip film includes a first substrate, a plurality of first output terminals, and a first substrate.
  • the first output terminals include a plurality of GOA signal output terminals and a plurality of first data signal output terminals.
  • Each GOA signal output terminal is electrically connected to the GOA circuit and connected to the GOA control signal.
  • the pole driving chip includes a plurality of first electrostatic discharge modules respectively corresponding to the plurality of first output terminals electrically connected, and each first electrostatic discharge module performs the operation when the voltage on the corresponding first output terminal exceeds a preset threshold. Discharge, so as to prevent static electricity from being input to the display panel through the GOA signal output terminal to cause electrostatic damage to the display device, and has a high electrostatic protection capability.

Abstract

本发明提供一种显示装置。本发明的显示装置包括显示面板及至少一个与显示面板电性连接的第一覆晶薄膜，每一第一覆晶薄膜包括第一衬底、多个第一输出端以及第一源极驱动芯片，多个第一输出端包括多个GOA信号输出端以及多个第一数据信号输出端，每一GOA信号输出端电性连接GOA电路并接入GOA控制信号，第一源极驱动芯片包括分别对应与多个第一输出端电性连接的多个第一静电释放模块，每一第一静电释放模块在对应的第一输出端上的电压超过预设阈值时对其进行放电，从而能够避免静电经由GOA信号输出端输入显示面板使显示装置产生静电击伤，具有较高的静电防护能力。

Description

显示装置 技术领域
本发明涉及显示技术领域，尤其涉及一种显示装置。
 背景技术
在显示技术领域，液晶显示装置(Liquid Crystal Display，LCD) 、有机发光二极管显示装置(Organic Light Emitting Display，OLED)等平板显示装置已经逐步取代阴极射线管(Cathode Ray Tube，CRT)显示装置。液晶显示装置具有机身薄、省电、无辐射等众多优点，得到了广泛的应用。
现有市场上的液晶显示装置大部分为背光型液晶显示装置，其包括液晶显示面板及背光模组(backlight module)。通常液晶显示面板由彩膜(Color Filter，CF)基板、薄膜晶体管(Thin Film Transistor，TFT)阵列基板、夹于彩膜基板与薄膜晶体管阵列基板之间的液晶(Liquid Crystal，LC)及密封胶框(Sealant)组成。液晶显示面板的工作原理是在两片平行的玻璃基板当中放置液晶分子，两片玻璃基板中间有许多垂直和水平的细小电线，通过通电与否来控制液晶分子改变方向，将背光模组的光线折射出来产生画面。
GOA(Gate Driver on Array)技术即阵列基板行驱动技术，是利用阵列制程将栅极扫描驱动电路制作在薄膜晶体管阵列基板上，以实现逐行扫描的驱动方式，具有降低生产成本和实现面板窄边框设计的优点，为多种显示器所使用。
请参阅图1，现有的一种显示装置包括显示面板910、分别与显示面板910电性连接的多个覆晶薄膜（COF）920及与多个覆晶薄膜920电性连接的印刷电路板（PCB）930。请参阅图2，最外侧的两个覆晶薄膜920中的每一个均包括衬底921、间隔设于衬底921上的多个输出端922以及设于衬底921上的源极驱动芯片923。多个输出端922包括多个GOA信号输出端9221及多个数据信号输出端9222。每一GOA信号输出端9221与显示面板910中的GOA电路电性连接并接入GOA控制信号，每一数据信号输出端9222电性连接显示面板910中的一条数据线，源极驱动芯片923电性连接多个数据信号输出端9222，且源极驱动芯片923包括分别对应与多个数据信号输出端9222电性连接的静电释放模块9231，用于在对应的数据信号输出端9222上的电压大于预设的电压时进行放电从而避免静电经数据信号输出端9222输入显示面板910中。该结构的显示装置中，未对GOA信号输出端9221进行防静电处理，静电防护能力较低，外部静电会经由GOA信号输出端9221进入显示面板910中而发生静电放电（Electrostatic Discharge，ESD）使显示装置发生静电击伤，降低产品的良率及品质。
 技术问题
本发明的目的在于提供一种显示装置，能够避免静电经由GOA信号输出端输入显示面板使显示装置产生静电击伤，具有较高的静电防护能力。
 技术解决方案
为实现上述目的，本发明提供一种显示装置，包括显示面板及至少一个与显示面板电性连接的第一覆晶薄膜；
所述显示面板包括平行且间隔的多条数据线及位于多条数据线所在区域外侧的GOA电路；
每一第一覆晶薄膜包括第一衬底、间隔设于第一衬底上的多个第一输出端以及设于第一衬底上且与多个第一输出端电性连接的第一源极驱动芯片；
所述多个第一输出端包括多个GOA信号输出端以及多个第一数据信号输出端；每一GOA信号输出端电性连接GOA电路并接入GOA控制信号；每一第一数据信号输出端对应与一条数据线电性连接；所述第一源极驱动芯片包括分别对应与多个第一输出端电性连接的多个第一静电释放模块，每一第一静电释放模块在对应的第一输出端上的电压超过预设阈值时对其进行放电。
所述第一静电释放模块包括第一TVS二极管；所述第一TVS二极管的负极电性连接对应的第一输出端，正极接地。
所述显示装置还包括多个与显示面板电性连接的第二覆晶薄膜；
每一第二覆晶薄膜包括第二衬底、间隔设于第二衬底上的多个第二输出端以及设于第二衬底上且与多个第二输出端电性连接的第二源极驱动芯片；每一第二输出端对应与一条数据线电性连接；所述第二源极驱动芯片包括分别对应与多个第二输出端电性连接的多个第二静电释放模块，每一第二静电释放模块在对应的第二输出端上的电压超过预设阈值时对其进行放电。
所述第二静电释放模块包括第二TVS二极管；所述第二TVS二极管的负极电性连接对应的第二输出端，正极接地。
每一第一覆晶薄膜中，多个第一输出端排成一行；每一第二覆晶薄膜中，多个第二输出端排成一行；第一输出端的形状为矩形，第二输出端的形状为矩形。
所述第一覆晶薄膜及第二覆晶薄膜位于显示面板的同一端并排成一行。
所述第一覆晶薄膜的数量为两个，该两个第一覆晶薄膜位于多个第二覆晶薄膜所在区域的两侧。
所述GOA电路包括分别位于多条数据线所在区域两侧的两个子GOA电路；每一第一覆晶薄膜与一子GOA电路相对应；每一第一覆晶薄膜中的GOA信号输出端电性连接对应的子GOA电路。
所述显示面板为液晶面板或OLED面板。
每一第一覆晶薄膜中，多个GOA信号输出端包括时钟信号输出端及起始信号输出端，所述时钟信号输出端接入的GOA控制信号为时钟信号，所述起始信号输出端接入的GOA控制信号为起始信号。
 有益效果
本发明的有益效果：本发明的显示装置包括显示面板及至少一个与显示面板电性连接的第一覆晶薄膜，每一第一覆晶薄膜包括第一衬底、多个第一输出端以及第一源极驱动芯片，多个第一输出端包括多个GOA信号输出端以及多个第一数据信号输出端，每一GOA信号输出端电性连接GOA电路并接入GOA控制信号，第一源极驱动芯片包括分别对应与多个第一输出端电性连接的多个第一静电释放模块，每一第一静电释放模块在对应的第一输出端上的电压超过预设阈值时对其进行放电，从而能够避免静电经由GOA信号输出端输入显示面板使显示装置产生静电击伤，具有较高的静电防护能力。
 附图说明
为了能更进一步了解本发明的特征以及技术内容，请参阅以下有关本发明的详细说明与附图，然而附图仅提供参考与说明用，并非用来对本发明加以限制。
附图中，
图1为现有的一种显示装置的结构示意图；
图2为图1所述的显示装置最外侧的覆晶薄膜的结构示意图；
图3为本发明的显示装置的结构示意图；
图4为本发明的显示装置的第一覆晶薄膜的结构示意图；
图5为本发明的显示装置的第一静电释放模块的结构示意图；
图6为本发明的显示装置的第二覆晶薄膜的结构示意图。
图7为本发明的显示装置的第二静电释放模块的结构示意图。
 本发明的实施方式
为更进一步阐述本发明所采取的技术手段及其效果，以下结合本发明的优选实施例及其附图进行详细描述。
请参阅图3，本发明提供一种显示装置，包括显示面板1及至少一个与显示面板1电性连接的第一覆晶薄膜2。所述显示面板1包括平行且间隔的多条数据线11及位于多条数据线11所在区域外侧的GOA电路12。请参阅图4，每一第一覆晶薄膜2包括第一衬底21、间隔设于第一衬底21上的多个第一输出端22以及设于第一衬底21上且与多个第一输出端22电性连接的第一源极驱动芯片23。所述多个第一输出端22包括多个GOA信号输出端221以及多个第一数据信号输出端222。每一GOA信号输出端221电性连接GOA电路12并接入GOA控制信号以向GOA电路12传输GOA控制信号。每一第一数据信号输出端222对应与一条数据线11电性连接。所述第一源极驱动芯片23包括分别对应与多个第一输出端22电性连接的多个第一静电释放模块231，每一第一静电释放模块231在对应的第一输出端22上的电压超过预设阈值时对其进行放电。
具体地，请参阅图5，在本发明的一优选实施例中，所述第一静电释放模块231包括第一瞬态抑制（TVS）二极管D1。所述第一TVS二极管D1的负极电性连接对应的第一输出端22，正极接地，当一第一输出端22上因存在静电而电压超过与其连接的第一TVS二极管D1的击穿电压时，该第一TVS二极管D1导通将该第一输出端22接地，从而对该第一输出端22进行放电以达到静电释放的效果。当然，在本发明的其他实施例中，所述第一静电释放模块231也可采用其他常用的具有静电释放功能的结构，并不会影响本发明的实现。
具体地，请参阅图3，所述显示装置还包括多个与显示面板1电性连接的第二覆晶薄膜3。请参阅图6，每一第二覆晶薄膜3包括第二衬底31、间隔设于第二衬底31上的多个第二输出端32以及设于第二衬底31上且与多个第二输出端32电性连接的第二源极驱动芯片33。每一第二输出端32对应与一条数据线11电性连接。所述第二源极驱动芯片33包括分别对应与多个第二输出端32电性连接的多个第二静电释放模块331，每一第二静电释放模块331在对应的第二输出端32上的电压超过预设阈值时对其进行放电。
具体地，请参阅图7，所述第二静电释放模块331包括第二TVS二极管D2。所述第二TVS二极管D2的负极电性连接对应的第二输出端32，正极接地，当一第二输出端32上因存在静电而电压超过与其连接的第二TVS二极管D2的击穿电压时，该第二TVS二极管D2导通将该第二输出端32接地，从而对该第二输出端32进行放电以达到静电释放的效果。当然，在本发明的其他实施例中，所述第二静电释放模块331也可采用其他常用的具有静电释放功能的结构，并不会影响本发明的实现。
具体地，请参阅图4，每一第一覆晶薄膜2中，多个第一输出端22排成一行。请参阅图6，每一第二覆晶薄膜3中，多个第二输出端32排成一行。
优选地，请参阅图4，第一输出端22的形状为矩形，请参阅图6，第二输出端32的形状为矩形。
具体地，请参阅图3，所述第一覆晶薄膜2及第二覆晶薄膜3位于显示面板1的同一端并排成一行。
进一步地，所述第一覆晶薄膜2的数量为两个，该两个第一覆晶薄膜2位于多个第二覆晶薄膜3所在区域的两侧。
具体地，请参阅图3，所述显示装置还包括两个间隔设置的印刷电路板4，该两个印刷电路板4位于第一覆晶薄膜2及第二覆晶薄膜3远离显示面板1一侧，该两个第一覆晶薄膜2分别对应连接两个印刷电路板4，每一第二覆晶薄膜3电性连接两个印刷电路板4中的一，该两个印刷电路板4用于向第一覆晶薄膜2中的第一源极驱动芯片23及第二覆晶薄膜3中的第二源极驱动芯片33传输数据信号，并向第一覆晶薄膜2中的GOA信号输出端221提供GOA控制信号。
具体地，所述显示面板1可为液晶面板或OLED面板，也即本发明的显示装可以为液晶显示装置，也可以为OLED显示装置。
具体地，每一第一覆晶薄膜2中，多个GOA信号输出端221包括时钟信号输出端及起始信号输出端，所述时钟信号输出端接入的GOA控制信号为时钟信号，所述起始信号输出端接入的GOA控制信号为起始信号。
需要说明的是，本发明的显示装置包括显示面板1及至少一个与显示面板1电性连接的第一覆晶薄膜2，每一第一覆晶薄膜2包括第一衬底21、多个第一输出端22以及第一源极驱动芯片23，多个第一输出端22包括多个GOA信号输出端221以及多个第一数据信号输出端222，每一GOA信号输出端221电性连接GOA电路12并接入GOA控制信号以向GOA电路12传输GOA控制信号，第一源极驱动芯片23包括分别对应与多个第一输出端22电性连接的多个第一静电释放模块231，每一第一静电释放模块231在对应的第一输出端22上的电压超过预设阈值时对其进行放电，也即本发明中，第一源极驱动芯片23不仅具有能够对与数据线11连接的第一数据信号输出端222进行静电释放的模块，还具有对与GOA电路12连接向其传输GOA控制信号的GOA信号输出端221进行静电释放的模块，相比于现有技术，能够避免静电经由GOA信号输出端输入显示面板1使显示装置产生静电击伤，从而大大提升了显示装置的静电防护能力，提升了显示装置的品质。
综上所述，本发明的显示装置包括显示面板及至少一个与显示面板电性连接的第一覆晶薄膜，每一第一覆晶薄膜包括第一衬底、多个第一输出端以及第一源极驱动芯片，多个第一输出端包括多个GOA信号输出端以及多个第一数据信号输出端，每一GOA信号输出端电性连接GOA电路并接入GOA控制信号，第一源极驱动芯片包括分别对应与多个第一输出端电性连接的多个第一静电释放模块，每一第一静电释放模块在对应的第一输出端上的电压超过预设阈值时对其进行放电，从而能够避免静电经由GOA信号输出端输入显示面板使显示装置产生静电击伤，具有较高的静电防护能力。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本发明权利要求的保护范围。

Claims (10)

  1. 一种显示装置，包括显示面板及至少一个与显示面板电性连接的第一覆晶薄膜；
    所述显示面板包括平行且间隔的多条数据线及位于多条数据线所在区域外侧的GOA电路；
    每一第一覆晶薄膜包括第一衬底、间隔设于第一衬底上的多个第一输出端以及设于第一衬底上且与多个第一输出端电性连接的第一源极驱动芯片；
    所述多个第一输出端包括多个GOA信号输出端以及多个第一数据信号输出端；每一GOA信号输出端电性连接GOA电路并接入GOA控制信号；每一第一数据信号输出端对应与一条数据线电性连接；所述第一源极驱动芯片包括分别对应与多个第一输出端电性连接的多个第一静电释放模块，每一第一静电释放模块在对应的第一输出端上的电压超过预设阈值时对其进行放电。
  2. 如权利要求1所述的显示装置，其中，所述第一静电释放模块包括第一TVS二极管；所述第一TVS二极管的负极电性连接对应的第一输出端，正极接地。
  3. 如权利要求1所述的显示装置，还包括多个与显示面板电性连接的第二覆晶薄膜；
    每一第二覆晶薄膜包括第二衬底、间隔设于第二衬底上的多个第二输出端以及设于第二衬底上且与多个第二输出端电性连接的第二源极驱动芯片；每一第二输出端对应与一条数据线电性连接；所述第二源极驱动芯片包括分别对应与多个第二输出端电性连接的多个第二静电释放模块，每一第二静电释放模块在对应的第二输出端上的电压超过预设阈值时对其进行放电。
  4. 如权利要求3所述的显示装置，其中，所述第二静电释放模块包括第二TVS二极管；所述第二TVS二极管的负极电性连接对应的第二输出端，正极接地。
  5. 如权利要求3所述的显示装置，其中，每一第一覆晶薄膜中，多个第一输出端排成一行；每一第二覆晶薄膜中，多个第二输出端排成一行。
  6. 如权利要求3所述的显示装置，其中，第一输出端的形状为矩形，第二输出端的形状为矩形。
  7. 如权利要求3所述的显示装置，其中，所述第一覆晶薄膜及第二覆晶薄膜位于显示面板的同一端并排成一行。
  8. 如权利要求7所述的显示装置，其中，所述第一覆晶薄膜的数量为两个，该两个第一覆晶薄膜位于多个第二覆晶薄膜所在区域的两侧。
  9. 如权利要求1所述的显示装置，其中，所述显示面板为液晶面板或OLED面板。
  10. 如权利要求1所述的显示装置，其中，每一第一覆晶薄膜中，多个GOA信号输出端包括时钟信号输出端及起始信号输出端，所述时钟信号输出端接入的GOA控制信号为时钟信号，所述起始信号输出端接入的GOA控制信号为起始信号。
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