WO2017201837A1 - 液晶面板及其薄膜晶体管阵列基板 - Google Patents

液晶面板及其薄膜晶体管阵列基板 Download PDF

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Publication number
WO2017201837A1
WO2017201837A1 PCT/CN2016/089973 CN2016089973W WO2017201837A1 WO 2017201837 A1 WO2017201837 A1 WO 2017201837A1 CN 2016089973 W CN2016089973 W CN 2016089973W WO 2017201837 A1 WO2017201837 A1 WO 2017201837A1
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WIPO (PCT)
Prior art keywords
control chip
thin film
film transistor
transistor array
array substrate
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PCT/CN2016/089973
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English (en)
French (fr)
Inventor
邱鑫
黄耀立
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武汉华星光电技术有限公司
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Application filed by 武汉华星光电技术有限公司 filed Critical 武汉华星光电技术有限公司
Priority to US15/327,996 priority Critical patent/US10191313B2/en
Priority to JP2018562030A priority patent/JP6720349B2/ja
Priority to KR1020187037279A priority patent/KR102142872B1/ko
Publication of WO2017201837A1 publication Critical patent/WO2017201837A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
    • 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
    • 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
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133311—Environmental protection, e.g. against dust or humidity
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • 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
    • 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
    • G02F1/136204—Arrangements to prevent high voltage or static electricity failures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
    • H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
    • H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
    • H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
    • H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
    • H01L27/1218—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition or structure of the substrate
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
    • H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
    • H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
    • H01L27/1259—Multistep manufacturing methods
    • H01L27/1262—Multistep manufacturing methods with a particular formation, treatment or coating of the substrate
    • 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
    • G02F1/13456—Cell terminals located on one side of the display only
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/50—Protective arrangements

Definitions

  • the invention belongs to the technical field of liquid crystal display, and in particular to a liquid crystal panel and a thin film transistor array substrate thereof.
  • LCDs liquid crystal displays
  • liquid crystal displays which include a liquid crystal panel and a backlight module.
  • the working principle of the liquid crystal panel is to place liquid crystal molecules in two parallel glass substrates. There are many vertical and horizontal small wires between the two glass substrates. The liquid crystal molecules are redirected by energization or not, and the light of the backlight module is refracted. Come out to produce the picture.
  • the liquid crystal panel comprises a color filter substrate (CF), a thin film transistor array substrate (TFT, Thin Film Transistor), a liquid crystal (LC) sandwiched between the color filter substrate and the thin film transistor array substrate, and a sealant frame. (Sealant) composition.
  • the length of the display driving chip is smaller than the width of the area occupied by the thin film transistor (ie, the display area), the area occupied by the display driving chip becomes the weakest area in the entire thin film transistor array substrate.
  • the display driving chip is directly mounted on the thin film transistor array substrate, there is no space for electrostatic protection between the display driving chip and the display area. Both of these problems will reduce the production yield of the LCD panel.
  • an object of the present invention is to provide a thin film transistor array substrate including: a substrate; a plurality of thin film transistors arranged in an array on the substrate; wherein the plurality of thin film transistors
  • the occupied area is a display area; a flexible circuit board disposed on the substrate and located on one side of the display area; a control chip disposed between the display area and the flexible circuit board, the flexible circuit board
  • the two sides of the control chip are respectively disposed on a first side of the control chip, and the first side is adjacent to a side of the control chip facing the display area; a second reinforcement member disposed on a second side of the control chip opposite to the first side; and a third reinforcement member covering the control chip, the first reinforcement member, and the second reinforcement member.
  • upper surfaces of the first reinforcement member and the second reinforcement member are flush with an upper surface of the control chip.
  • first reinforcing member and the second reinforcing member each include: a reinforcing body, a first adhesive groove formed by a recess of the reinforcing body facing the display area, and the reinforcing body a second adhesive tank formed to be recessed toward a joint of a side of the control chip and a side of the reinforcing body facing away from the display area.
  • the third reinforcing member includes: a reinforcing body, and two third adhesive tanks respectively recessed from two ends of the reinforcing body facing the display area side.
  • the third adhesive tank corresponds to the next one on the first adhesive tank.
  • the glue is overflowed into the first adhesive tank, the second adhesive tank and the third sol tank, thereby the first reinforcement member, the second reinforcement member and the The third reinforcement is fixed.
  • the thin film transistor array substrate further includes: a conductive tape disposed on the third reinforcement; one end of the conductive tape extends between the display area and the control chip to The control chip is electrically connected; the other end of the conductive tape extends to the flexible circuit board to be electrically connected to a ground terminal on the flexible circuit board.
  • first reinforcement member, the second reinforcement member and the third reinforcement member are each assembled by a pair Made of ethylene phthalate.
  • Another object of the present invention is to provide a liquid crystal panel including the above-described thin film transistor array substrate.
  • the present invention enhances the strength of the area occupied by the control chip by providing a reinforcing member around the control chip, and connects the control chip to the grounding point on the flexible circuit board through the conductive tape provided on the third reinforcing member. This can effectively shield the external environment from interference with the control chip. At the same time, the static electricity can flow directly from the conductive tape to the grounding point of the flexible circuit board to prevent static electricity from causing electrostatic damage to the control chip.
  • FIG. 1 is an exploded perspective view of a thin film transistor array substrate in accordance with an embodiment of the present invention
  • FIG. 2 is a schematic structural view of a first reinforcement member, a second reinforcement member, and a third reinforcement member according to an embodiment of the present invention
  • FIG. 3 is a side view of a liquid crystal panel in accordance with an embodiment of the present invention.
  • Fig. 4 is a view taken along the line A-A in Fig. 3;
  • FIG. 1 is an exploded perspective view of a thin film transistor array substrate in accordance with an embodiment of the present invention.
  • a thin film transistor array substrate 10 includes: a substrate 11; a display region 12 formed on the substrate 11, wherein the display region 12 is composed of a plurality of thin film transistors arranged in an array on the substrate 11 (not A portion of the area is formed; a flexible circuit board (FPC) 13 disposed on the substrate 11 and located on one side of the display area 12; and a control chip disposed on the substrate 11 and located between the display area 12 and the flexible circuit board 13 ( Or a display driver chip 14 , wherein the two sides of the flexible circuit board 13 respectively extend beyond the corresponding sides of the control chip 14 ; the first reinforcement 15 disposed on the first side of the control chip 14 , wherein the control chip 14 One side is adjacent to a side of the control chip 14 facing the display area 12; a second reinforcement 16 is disposed on the second side of the control chip 14, wherein the second side of the control chip 14 is opposite to the first side of the control chip 14. And a third reinforcement member 17 covering the control chip 14, the
  • the thin film transistor array substrate 10 further includes: a conductive tape 18 disposed over the third reinforcement member 17.
  • the conductive tape 18 is used to connect the control chip 14 to the grounding point on the flexible circuit board 13, so that the interference of the external environment to the control chip 14 can be effectively shielded, and the static electricity can directly flow from the conductive tape 18 to the grounding point of the flexible circuit board 13. Prevent static electricity from causing electrostatic damage to the control chip 14.
  • FIG. 2 is a schematic structural view of a first reinforcement member, a second reinforcement member, and a third reinforcement member according to an embodiment of the present invention.
  • a first reinforcement member 15 includes a first reinforcement body 151, and a first adhesive tank 152 formed by a recess of a side of the first reinforcement body 151 facing the display area 12.
  • a second adhesive tank 153 formed by the recess of the first reinforcing body 151 facing the side of the control chip 14 and the side of the first reinforcing body 151 facing away from the display area 12 is recessed.
  • the second reinforcement member 16 includes: a second reinforcement body 161, a third adhesive tank 162 formed by a recess of the second reinforcement body 161 facing the display area 12, and a second The side of the reinforcing body 161 facing the control chip 14 and the back display area of the second reinforcing body 161
  • a fourth adhesive tank 163 is formed by recessing the joint at one side of the 12 .
  • the third reinforcing member 17 includes a third reinforcing body 171, and two fifth adhesive tanks 172 recessed from the two ends of the third reinforcing body 171 facing the display region 12, respectively.
  • FIG. 3 is a side view of a liquid crystal panel in accordance with an embodiment of the present invention.
  • Fig. 4 is a view taken along the line A-A in Fig. 3;
  • a liquid crystal panel includes: a thin film transistor array substrate 10; a color filter substrate 20 disposed opposite the thin film transistor array substrate 10; and a liquid crystal layer interposed therebetween (not shown).
  • the area of the color filter substrate 20 substantially corresponds to the area of the display region 12 of the thin film transistor array substrate 10.
  • the color filter substrate 20 includes necessary components such as a color photoresist, a black matrix, an alignment film layer, and the like.
  • the first reinforcing member 15 and the second reinforcing member 16 are bonded to both sides of the control chip 14 by glue 19, respectively. Further, the first reinforcement member 15 and the second reinforcement member 16 are raised by the glue 19 between the first reinforcement member 15 and the substrate 11 and between the second reinforcement member 16 and the substrate 11, thereby making the first reinforcement Both the member 15 and the upper surface of the second reinforcing member 16 are flush with the upper surface of the control chip 14, which facilitates the arrangement of the third reinforcing member 17.
  • the second adhesive tank 153 and the fourth adhesive tank 163 respectively extend beyond the control chip 14 with the flexible circuit board 13. The ends of the side ends are engaged.
  • the conductive tape 18 is disposed above the third reinforcement member 17. One end of the conductive tape 18 extends to a region between the display region 12 and the control chip 14 and extends over the color filter substrate 20 to be electrically connected to the control chip 14; the other end of the conductive tape 18 extends to the flexible circuit board 13 to It is electrically connected to a ground point on the flexible circuit board 13.
  • the first reinforcing member 15, the second reinforcing member 16, and the third reinforcing member 17 are each made of a polyethylene terephthalate (PET) film, but the invention is not limited thereto. .

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Computer Hardware Design (AREA)
  • Manufacturing & Machinery (AREA)
  • Liquid Crystal (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Environmental Sciences (AREA)
  • Toxicology (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

薄膜晶体管阵列基板（10）以及具有该薄膜晶体管阵列基板（10）的液晶面板。薄膜晶体管阵列基板（10）包括：基板（11）；形成在基板（11）上的显示区（12）；设置于基板（11）上且位于显示区（12）一侧的柔性电路板（13）；设置于显示区（12）与柔性电路板（13）之间的控制芯片（14），柔性电路板（13）的两侧分别超出控制芯片（14）的对应两侧；设置于控制芯片（14）的第一侧的第一强化件（15），第一侧与控制芯片（14）朝向显示区（12）的一侧相邻；设置于控制芯片（14）的与第一侧相对的第二侧的第二强化件（16）；以及覆盖控制芯片（14）、第一强化件（15）和第二强化件（16）的第三强化件（17）。通过在控制芯片（14）周围设置强化件（15、16、17），加强控制芯片（14）所占区域的强度。

Description

液晶面板及其薄膜晶体管阵列基板 技术领域
本发明属于液晶显示技术领域，具体地讲，涉及一种液晶面板及其薄膜晶体管阵列基板。
背景技术
随着光电与半导体技术的演进，也带动了平板显示器(Flat Panel Display)的蓬勃发展，而在诸多平板显示器中，液晶显示器(Liquid Crystal Display，LCD)因具有高空间利用效率、低消耗功率、无辐射以及低电磁干扰等诸多优越特性，已被应用于生产生活的各个方面。
现有的液晶显示器大部分为背光型液晶显示器，其包括液晶面板及背光模组(Backlight Module)。液晶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。
通常液晶面板由彩膜基板(CF，Color Filter)、薄膜晶体管阵列基板(TFT，Thin Film Transistor)、夹于彩膜基板与薄膜晶体管阵列基板之间的液晶(LC，Liquid Crystal)及密封胶框(Sealant)组成。
目前，薄膜晶体管阵列基板上的显示驱动芯片(或称控制芯片)大多数采用玻璃基板上贴装芯片(COG)的方式进行贴装。采用这种方式的优势在于：减少了焊接工艺，且体积比印刷电路板上搭载芯片(COB)的方式大大缩小，更易于小型化、简易化和高度集成化，且不存在芯片变形等问题。
然而，由于显示驱动芯片的长度小于薄膜晶体管所占区域(即显示区)的宽度，使得显示驱动芯片所占区域成为整个薄膜晶体管阵列基板中强度最薄弱的区域。同时，由于显示驱动芯片直接贴装在薄膜晶体管阵列基板上，导致没有空间在显示驱动芯片和显示区之间做静电防护措施。这两个问题均会降低液晶面板的生产良率。
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薄膜晶体管阵列基板，其包括：基板；阵列排布于所述基板上的多个薄膜晶体管；其中，所述多个薄膜晶体管所占区域为显示区；设置于所述基板上且位于所述显示区一侧的柔性电路板；设置于所述显示区与所述柔性电路板之间的控制芯片，所述柔性电路板的两侧分别超出所述控制芯片的对应两侧；设置于所述控制芯片的第一侧的第一强化件，所述第一侧与所述控制芯片朝向所述显示区的一侧相邻；设置于所述控制芯片的与所述第一侧相对的第二侧的第二强化件；以及覆盖所述控制芯片、所述第一强化件和所述第二强化件的第三强化件。
进一步地，所述第一强化件和所述第二强化件的上表面与所述控制芯片的上表面平齐。
进一步地，所述第一强化件和所述第二强化件均包括：强化本体、由所述强化本体的朝向所述显示区的一侧凹陷形成的第一容胶槽、由所述强化本体的朝向所述控制芯片的一侧与所述强化本体的背向所述显示区的一侧的连接处凹陷形成的第二容胶槽。
进一步地，所述柔性电路板超出所述控制芯片的侧端的端部卡合于所述第二容胶槽中。
进一步地，所述第三强化件包括：强化本体、由所述强化本体的朝向所述显示区一侧的两端分别凹陷形成的两个第三容胶槽。
进一步地，所述第三容胶槽与所述第一容胶槽上下一一对应。
进一步地，使胶水溢容到所述第一容胶槽、所述第二容胶槽和所述第三溶胶槽中，从而将所述第一强化件、所述第二强化件和所述第三强化件固定。
进一步地，所述薄膜晶体管阵列基板还包括：设置在所述第三强化件之上的导电胶带；所述导电胶带的一端延伸至所述显示区与所述控制芯片之间，以与所述控制芯片电连接；所述导电胶带的另一端延伸至所述柔性电路板，以与所述柔性电路板上的接地端电连接。
进一步地，所述第一强化件、所述第二强化件和所述第三强化件均由聚对 苯二甲酸乙二酯制成。
本发明的另一目的还在于提供一种液晶面板，其包括上述的薄膜晶体管阵列基板。
本发明的有益效果：本发明通过在控制芯片周围设置强化件，以加强控制芯片所占区域的强度，并且通过第三强化件上设置的导电胶带将控制芯片与柔性电路板上的接地点连接，这样可以有效屏蔽外部环境对控制芯片的干扰，同时静电能够直接由导电胶带流至柔性电路板的接地点，防止静电对控制芯片造成静电损伤。
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薄膜晶体管阵列基板的立体分解图；
图2是根据本发明的实施例的第一强化件、第二强化件和第三强化件的结构示意图；
图3是根据本发明的实施例的液晶面板的侧视图；
图4是图3中的A-A向视图。
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，为了清楚可能夸大了层和区域的厚度。相同的标号在附图中始终表示相同的元件。
将理解的是，尽管在这里可使用术语“第一”、“第二”等来描述各种元件， 但是这些元件不应受这些术语的限制。这些术语仅用于将一个元件与另一个元件区分开来。
图1是根据本发明的实施例的薄膜晶体管阵列基板的立体分解图。
参照图1，根据本发明的实施例的薄膜晶体管阵列基板10包括：基板11；在基板11上形成的显示区12，其中，显示区12由基板11上阵列排布的多个薄膜晶体管(未示出)所占区域形成；设置于基板11上且位于显示区12一侧的柔性电路板(FPC)13；设置于基板11上且位于显示区12与柔性电路板13之间的控制芯片(或称显示驱动芯片)14，其中，柔性电路板13的两侧分别超出控制芯片14的对应两侧；设置于控制芯片14的第一侧的第一强化件15，其中，控制芯片14的第一侧与控制芯片14朝向显示区12的一侧相邻；设置于控制芯片14的第二侧的第二强化件16，其中，控制芯片14的第二侧与控制芯片14的第一侧相对；以及覆盖控制芯片14、第一强化件15和第二强化件16的第三强化件17。如此，通过在控制芯片14周围设置强化件，以加强控制芯片14所占区域的强度。
进一步地，根据本发明的实施例的薄膜晶体管阵列基板10还包括：设置在第三强化件17之上的导电胶带18。导电胶带18用于将控制芯片14与柔性电路板13上的接地点连接，这样可以有效屏蔽外部环境对控制芯片14的干扰，同时静电能够直接由导电胶带18流至柔性电路板13的接地点，防止静电对控制芯片14造成静电损伤。
图2是根据本发明的实施例的第一强化件、第二强化件和第三强化件的结构示意图。
参照图1和图2，根据本发明的实施例的第一强化件15包括：第一强化本体151、由第一强化本体151的朝向显示区12的一侧凹陷形成的第一容胶槽152、由第一强化本体151的朝向控制芯片14的一侧与第一强化本体151的背向显示区12的一侧的连接处凹陷形成的第二容胶槽153。
同样地，根据本发明的实施例的第二强化件16包括：第二强化本体161、由第二强化本体161的朝向显示区12的一侧凹陷形成的第三容胶槽162、由第二强化本体161的朝向控制芯片14的一侧与第二强化本体161的背向显示区 12的一侧的连接处凹陷形成的第四容胶槽163。
根据本发明的实施例的第三强化件17包括：第三强化本体171、由第三强化本体171的朝向显示区12一侧的两端分别凹陷形成的两个第五容胶槽172。
当第三强化件17覆盖在控制芯片14、第一强化件15和第二强化件16上时，两个第五容胶槽172之一与第一容胶槽152上下重叠对齐，两个第五容胶槽172之另一与第三容胶槽162上下重叠对齐。
当对第一强化件15、第二强化件16和第三强化件17进行固定时，可以在控制芯片14的两侧涂布一定长宽和厚度的胶水，然后将第一强化件15、第二强化件16分别粘结在控制芯片14的两侧，并且将第三强化件17覆盖在控制芯片14、第一强化件15和第二强化件16上，在按压的过程中，胶水溢容于各容胶槽中，从而完成第一强化件15、第二强化件16和第三强化件17的固定。具体请参照图3和图4。
图3是根据本发明的实施例的液晶面板的侧视图。图4是图3中的A-A向视图。
参照图3和图4，根据本发明的实施例的液晶面板包括：薄膜晶体管阵列基板10；与薄膜晶体管阵列基板10对盒设置的彩膜基板20；以及夹设于二者之间的液晶层(未示出)。
彩膜基板20的面积大体上与薄膜晶体管阵列基板10的显示区12的面积对应。通常，彩膜基板20包括彩色光阻、黑色矩阵、配向膜层等必要的部件。
第一强化件15、第二强化件16分别通过胶水19粘结在控制芯片14的两侧。进一步地，通过第一强化件15与基板11之间以及第二强化件16与基板11之间的胶水19，使第一强化件15与第二强化件16被垫高，从而使第一强化件15与第二强化件16的上表面都与控制芯片14的上表面平齐，这样可方便第三强化件17的设置。
当第一强化件15、第二强化件16分别通过胶水19粘结在控制芯片14的两侧时，第二容胶槽153和第四容胶槽163分别与柔性电路板13超出控制芯片14的侧端的端部卡合。
导电胶带18设置在第三强化件17之上。导电胶带18的一端延伸至显示区12与控制芯片14之间的区域并延伸至彩膜基板20之上，以与控制芯片14电连接；导电胶带18的另一端延伸至柔性电路板13，以与柔性电路板13上的接地点电连接。
此外，在本实施例中，第一强化件15、第二强化件16以及第三强化件17均由聚对苯二甲酸乙二酯(PET)薄膜制成，但本发明并不限制于此。
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 (13)

  1. 一种薄膜晶体管阵列基板，其中，包括：
    基板；
    阵列排布于所述基板上的多个薄膜晶体管；其中，所述多个薄膜晶体管所占区域为显示区；
    设置于所述基板上且位于所述显示区一侧的柔性电路板；
    设置于所述显示区与所述柔性电路板之间的控制芯片，所述柔性电路板的两侧分别超出所述控制芯片的对应两侧；
    设置于所述控制芯片的第一侧的第一强化件，所述第一侧与所述控制芯片朝向所述显示区的一侧相邻；
    设置于所述控制芯片的与所述第一侧相对的第二侧的第二强化件；以及
    覆盖所述控制芯片、所述第一强化件和所述第二强化件的第三强化件。
  2. 根据权利要求1所述的薄膜晶体管阵列基板，其中，所述第一强化件和所述第二强化件的上表面与所述控制芯片的上表面平齐。
  3. 根据权利要求1所述的薄膜晶体管阵列基板，其中，所述第一强化件和所述第二强化件均包括：强化本体、由所述强化本体的朝向所述显示区的一侧凹陷形成的第一容胶槽、由所述强化本体的朝向所述控制芯片的一侧与所述强化本体的背向所述显示区的一侧的连接处凹陷形成的第二容胶槽。
  4. 根据权利要求3所述的薄膜晶体管阵列基板，其中，所述柔性电路板超出所述控制芯片的侧端的端部卡合于所述第二容胶槽中。
  5. 根据权利要求3所述的薄膜晶体管阵列基板，其中，所述第三强化件包括：强化本体、由所述强化本体的朝向所述显示区一侧的两端分别凹陷形成的两个第三容胶槽。
  6. 根据权利要求4所述的薄膜晶体管阵列基板，其中，所述第三强化件包括：强化本体、由所述强化本体的朝向所述显示区一侧的两端分别凹陷形成的两个第三容胶槽。
  7. 根据权利要求5所述的薄膜晶体管阵列基板，其中，所述第三容胶槽与所述第一容胶槽上下一一对应。
  8. 根据权利要求6所述的薄膜晶体管阵列基板，其中，所述第三容胶槽与所述第一容胶槽上下一一对应。
  9. 根据权利要求7所述薄膜晶体管阵列基板，其中，使胶水容置到所述第一容胶槽、所述第二容胶槽和所述第三溶胶槽中，从而将所述第一强化件、所述第二强化件和所述第三强化件固定。
  10. 根据权利要求8所述薄膜晶体管阵列基板，其中，使胶水容置到所述第一容胶槽、所述第二容胶槽和所述第三溶胶槽中，从而将所述第一强化件、所述第二强化件和所述第三强化件固定。
  11. 根据权利要求1所述的薄膜晶体管阵列基板，其中，还包括：设置在所述第三强化件之上的导电胶带；所述导电胶带的一端延伸至所述显示区与所述控制芯片之间，以与所述控制芯片电连接；所述导电胶带的另一端延伸至所述柔性电路板，以与所述柔性电路板上的接地端电连接。
  12. 根据权利要求1所述的薄膜晶体管阵列基板，其中，所述第一强化件、所述第二强化件和所述第三强化件均由聚对苯二甲酸乙二酯制成。
  13. 一种液晶面板，包括对盒设置的薄膜晶体管阵列基板和彩膜基板以及夹设于所述薄膜晶体管阵列基板和所述彩膜基板之间的液晶层，其中，所述薄膜晶体管阵列基板包括：
    基板；
    阵列排布于所述基板上的多个薄膜晶体管；其中，所述多个薄膜晶体管所占区域为显示区；
    设置于所述基板上且位于所述显示区一侧的柔性电路板；
    设置于所述显示区与所述柔性电路板之间的控制芯片，所述柔性电路板的两侧分别超出所述控制芯片的对应两侧；
    设置于所述控制芯片的第一侧的第一强化件，所述第一侧与所述控制芯片朝向所述显示区的一侧相邻；
    设置于所述控制芯片的与所述第一侧相对的第二侧的第二强化件；以及
    覆盖所述控制芯片、所述第一强化件和所述第二强化件的第三强化件。
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US10191313B2 (en) 2019-01-29
US20180188587A1 (en) 2018-07-05
CN105759476B (zh) 2019-09-06
KR20190008956A (ko) 2019-01-25

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