CN106773387A - The electrostatic protection structure of liquid crystal display panel - Google Patents
The electrostatic protection structure of liquid crystal display panel Download PDFInfo
- Publication number
- CN106773387A CN106773387A CN201611238045.8A CN201611238045A CN106773387A CN 106773387 A CN106773387 A CN 106773387A CN 201611238045 A CN201611238045 A CN 201611238045A CN 106773387 A CN106773387 A CN 106773387A
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- Prior art keywords
- electrostatic protection
- pads
- cog
- liquid crystal
- crystal display
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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
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1345—Conductors connecting electrodes to cell terminals
- G02F1/13458—Terminal pads
-
- 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
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Abstract
The present invention provides a kind of electrostatic protection structure of liquid crystal display panel, interval region of the electrostatic protection structure between the COG input pads and COG o pads sets electrostatic protection wire, and the ground pad being electrically connected with electrostatic protection wire is set at the two ends of electrostatic protection wire, the electrostatic being transmitted on electrostatic protection wire is directly discharged into earth terminal by ground pad, the electrostatic protection area of liquid crystal display panel is extended to without cross-line, influence of the electrostatic that FPC pads are imported to COG o pads can effectively be prevented, avoid electrostatic protection wire long, reduce cross-line, avoid because of damage by static electricity caused by cross-line, effectively lift product yield.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of electrostatic protection structure of liquid crystal display panel.
Background technology
With the development of Display Technique, the plane such as liquid crystal display (Liquid Crystal Display, LCD) display dress
Put because having the advantages that high image quality, power saving, fuselage is thin and has a wide range of application, and be widely used in mobile phone, TV, individual number
The various consumption electronic products such as word assistant, digital camera, notebook computer, desktop computer, as the master in display device
Stream.
Thin Film Transistor-LCD (Thin Film Transistor Liquid Crystal Display, TFT-
LCD it is) main flow liquid crystal display the most frequently used at present, it has, and good brightness, contrast are high, stereovision is strong, bright-colored, frivolous
The characteristics of, widely applied in the display product such as mobile phone, panel computer, notebook computer, TV.
TFT-LCD controls the operation of pixel using thin film transistor (TFT) as switch element, and thin film transistor (TFT) is thin according to its silicon
Film character can be generally divided into two kinds of non-crystalline silicon (a-Si) and polysilicon (poly-Si).Low temperature polycrystalline silicon wherein in polysilicon
(Low Temperature Poly-Silicon, LTPS) due to its atomic arrangement rule, carrier mobility it is high (10~
300cm2/ Vs), for making during thin film transistor (TFT), can make thin film transistor (TFT) that there is driving current higher.
TFT-LCD, need to be by multiple tracks processing procedure operation, especially the processing procedure work in LTPS technology in mass-manufacturing process
Sequence can also be more.In each processing procedure, can be by numerous process apparatus such as exposure machine, developing machine and cutting machine, in this process
In, contact with product, friction and cutting etc. are had unavoidably, it is easy to which damage by static electricity occur influences the situation of product yield, because
This, the influence of electrostatic problem in producing line to product is very important.
As shown in figure 1, Fig. 1 is the signal that existing liquid crystal display panel driving chip binds (IC Bonding) region
Figure, the region specifically includes following element：Substrate 100, the several cores for arranging in the first direction on the substrate 100
Piece binding input pad (Chip On Glass in pad, COG in pad) the 200, edge on the substrate 100
Chip bonding o pads (the Chip On Glass out that first direction is arranged and is spaced with several COG input pads 200
Pad, COG out pad) 300 and the COG input pads 200 on the substrate 100 away from several COG export
Several flexible circuit board pads (the Flexible Printed Circuit for arranging in the first direction of the side of pad 300
Pad, FPC pad) 400, each FPC pad 400 is corresponded to and is electrically connected with a COG input pads by the correspondence of a cabling 700
200.Because the edge that FPC pads 400 are located at substrate 100 often produces electrostatic during processing procedure, electrostatic is from FPC pads 400
Passed on COG input pads 200 via cabling 700, made on COG o pads 300 being skipped to from the electric discharge of COG input pads 200
Wounded into COG o pads 300, therefore prior art can be set between COG input pads 200 and COG o pads 300
Metal wire 600 carrys out conducting static electricity, and the metal wire 600 is arranged between COG input pads 200 and COG o pads 300 and electrical
It is connected in the electrostatic protection area of liquid crystal display panel, metal wire 600 is generally gone back in being electrically connected to the path in electrostatic protection area
Other cablings 800 (such as GOA cablings) can be formed with, metal wire 600 has to quiet to be electrically connected to across other cablings 800
In electric guard plot, now, other cablings are wounded in the place release that electrostatic is easy to be crossed in metal wire 600 and other cablings 800
800。
The content of the invention
It is an object of the invention to provide a kind of electrostatic protection structure of liquid crystal display panel, static shock can be prevented effectively from
Wound, it is ensured that product yield.
To achieve the above object, the invention provides a kind of electrostatic protection structure of liquid crystal display panel, including：Substrate,
The several COG input pads for arranging in the first direction on the substrate, the row in the first direction on the substrate
Row and the COG o pads, several COG input pads and the number on the substrate that are spaced with several COG input pads
The electrostatic protection wire of several parallel intervals arrangement of the interval region between individual COG o pads；
The electrostatic protection wire extends several COG inputs along the orientation of several COG input pads
Pad is separated with several COG o pads, and each electrostatic protection wire two ends are respectively electrically connected with a ground pad.
Also include：The several FPC pads for arranging in the first direction on the substrate；
Several FPC pads are located at side of the several COG input pads away from several COG o pads, described
Several FPC pads are corresponded with several COG o pads, and each FPC pad is via a cabling to electrotropism
One COG input pad of connection.
The quantity of the electrostatic protection wire is two.
The two ends of the electrostatic protection wire correspond to first in the several COG input pads being arranged in order respectively
COG input pads and last COG input pad.
The material of the electrostatic protection wire is metal.
The substrate is glass substrate.
The electrostatic protection structure of the liquid crystal display panel is located at the non-display area of liquid crystal display panel.
The electrostatic protection structure of the liquid crystal display panel is used for the electrostatic protection of LTPS liquid crystal display panels.
Beneficial effects of the present invention：The present invention provides a kind of electrostatic protection structure of liquid crystal display panel, the electrostatic protection
Interval region of the structure between the COG input pads and COG o pads sets electrostatic protection wire, and in electrostatic protection
The two ends of wire set the ground pad being electrically connected with electrostatic protection wire, and the electrostatic being transmitted on electrostatic protection wire is direct
Earth terminal is discharged into by ground pad, the electrostatic protection area of liquid crystal display panel is extended to without cross-line, can effectively prevented
Influence of the electrostatic that FPC pads are imported to COG o pads, it is to avoid electrostatic protection wire is long, reduces cross-line, it is to avoid because of cross-line
Caused damage by static electricity, effectively lifts product yield.
Brief description of the drawings
In order to be able to be further understood that feature of the invention and technology contents, refer to below in connection with of the invention detailed
Illustrate and accompanying drawing, however accompanying drawing only provide with reference to and explanation use, not for being any limitation as to the present invention.
In accompanying drawing,
Fig. 1 is the schematic diagram of the driving chip binding region of existing liquid crystal display panel；
Fig. 2 is the schematic diagram of the electrostatic protection structure of liquid crystal display panel of the invention.
Specific embodiment
Further to illustrate technological means and its effect that the present invention is taken, it is preferable to carry out below in conjunction with of the invention
Example and its accompanying drawing are described in detail.
Fig. 2 is referred to, the present invention provides a kind of electrostatic protection structure of liquid crystal display panel, including：Substrate 1, located at institute
State the several COG input pads 2 for arranging in the first direction on substrate 1, the arrangement in the first direction on the substrate 1 and
COG o pads 3, several COG input pads 2 and the number on the substrate 1 being spaced with several COG input pads 2
The electrostatic protection wire 5 of several parallel intervals arrangement of the interval region between individual COG o pads 3；
The electrostatic protection wire 5 extends that several COG are defeated along the orientation of several COG input pads 2
Enter pad 2 to be separated with several COG o pads 3, each two ends of electrostatic protection wire 5 are respectively electrically connected with ground connection weldering
Disk 6.
Specifically, the electrostatic protection structure of the liquid crystal display panel also includes：On the substrate 1 along first party
To several FPC pads 4 of arrangement；Several FPC pads 4 are exported located at several COG input pads 2 away from several COG
The side of pad 3, several FPC pads 4 are corresponded with several COG o pads 3, and each FPC pad 4 is passed through
One COG input pad 2 is electrically connected with by a correspondence of cabling 7.
Preferably, as shown in Fig. 2 the quantity of the electrostatic protection wire 5 is two.
It is noted that the two ends of the electrostatic protection wire 5 correspond to the several COG inputs being arranged in order respectively
First COG input pad 2 and last COG input pad 2 in pad 2, namely the electrostatic protection wire 5 correspondence are described
First COG input pad 2 arrives last COG input pad 2 apart from setting, so as to effectively completely cut off several COG input pads 2
With the electrostatic between several COG o pads 3.
Specifically, the material of the electrostatic protection wire 5 be metal, specifically may be selected molybdenum, titanium and aluminium in one kind or
Various combinations.Specifically, the substrate 1 is glass substrate.
Specifically, the course of work of the electrostatic protection structure of liquid crystal display panel of the invention is：Electrostatic is from FPC pads 4
Import, be transmitted on COG input pads 2 via cabling 7 and discharged, the electrostatic according to the release of electrostatic screen principle is along electrostatic
Anti- protection cover wire 5 conducts to ground pad 7 and is discharged into ground, so as to avoid damage by static electricity COG o pads 3, and whole process
In, electrostatic protection wire 5 also will not cause All other routes by damage by static electricity not across All other routes because of cross-line.
Explanation is needed, the electrostatic protection structure of the liquid crystal display panel is located at the non-display area of liquid crystal display panel,
That is the driving chip binding region of liquid crystal display panel, the surrounding that the region may be located at the viewing area of liquid crystal display panel is any
Side.
It is understood that the present invention can be used in various types of liquid crystal display panels, and due to LTPS liquid crystals
Show that the processing procedure operation of panel is more, produce the probability of electrostatic also bigger, thus liquid crystal display panel of the invention electrostatic protection
Structure is particularly suited for LTPS liquid crystal display panels.
In sum, the present invention provides a kind of electrostatic protection structure of liquid crystal display panel, and the electrostatic protection structure is in institute
The interval region stated between COG input pads and COG o pads sets electrostatic protection wire, and the two of electrostatic protection wire
End sets the ground pad being electrically connected with electrostatic protection wire, is transmitted to the electrostatic on electrostatic protection wire directly by ground connection
Pad is discharged into earth terminal, and the electrostatic protection area of liquid crystal display panel is extended to without cross-line, can effectively prevent FPC pads from leading
Influence of the electrostatic for entering to COG o pads, it is to avoid electrostatic protection wire is long, reduces cross-line, it is to avoid because quiet caused by cross-line
Electric injury, effectively lifts product yield.
The above, for the person of ordinary skill of the art, can be with technology according to the present invention scheme and technology
Other various corresponding changes and deformation are made in design, and all these changes and deformation should all belong to the claims in the present invention
Protection domain.
Claims (8)
1. a kind of electrostatic protection structure of liquid crystal display panel, it is characterised in that including：Substrate (1), located at the substrate (1)
On the several COG input pads (2) for arranging in the first direction, the arrangement in the first direction on the substrate (1) and with
COG o pads (3), several COG input pads on the substrate (1) at several COG input pads (2) intervals
(2) the electrostatic protection wire (5) arranged with several parallel intervals of the interval region between several COG o pads (3)；
The electrostatic protection wire (5) extends that several COG are defeated along the orientation of several COG input pads (2)
Enter pad (2) to be separated with several COG o pads (3), each electrostatic protection wire (5) two ends are respectively electrically connected with one
Ground pad (6).
2. the electrostatic protection structure of liquid crystal display panel as claimed in claim 1, it is characterised in that also include：Located at described
The several FPC pads (4) for arranging in the first direction on substrate (1)；
Several FPC pads (4) located at several COG input pads (2) away from several COG o pads (3) side,
Several FPC pads (4) correspond with several COG o pads (3), and each FPC pad (4) is via one
Cabling (7) correspondence is electrically connected with a COG input pad (2).
3. the electrostatic protection structure of liquid crystal display panel as claimed in claim 1, it is characterised in that the electrostatic protection wire
(5) quantity is two.
4. the electrostatic protection structure of liquid crystal display panel as claimed in claim 1, it is characterised in that the electrostatic protection wire
(5) two ends correspond in the several COG input pads (2) being arranged in order first COG input pad (2) and finally respectively
One COG input pad (2).
5. the electrostatic protection structure of liquid crystal display panel as claimed in claim 1, it is characterised in that the electrostatic protection wire
(5) material is metal.
6. the electrostatic protection structure of liquid crystal display panel as claimed in claim 1, it is characterised in that the substrate (1) is glass
Glass substrate.
7. the electrostatic protection structure of liquid crystal display panel as claimed in claim 1, it is characterised in that positioned at liquid crystal display panel
Non-display area.
8. the electrostatic protection structure of liquid crystal display panel as claimed in claim 1, it is characterised in that for LTPS liquid crystal displays
The electrostatic protection of panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611238045.8A CN106773387B (en) | 2016-12-28 | 2016-12-28 | The electrostatic protection structure of liquid crystal display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611238045.8A CN106773387B (en) | 2016-12-28 | 2016-12-28 | The electrostatic protection structure of liquid crystal display panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106773387A true CN106773387A (en) | 2017-05-31 |
| CN106773387B CN106773387B (en) | 2019-07-02 |
Family
ID=58925024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611238045.8A Active CN106773387B (en) | 2016-12-28 | 2016-12-28 | The electrostatic protection structure of liquid crystal display panel |
Country Status (1)
| Country | Link |
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| CN (1) | CN106773387B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107025893A (en) * | 2017-06-02 | 2017-08-08 | 武汉华星光电技术有限公司 | A kind of drive circuit and liquid crystal display device |
| CN107145015A (en) * | 2017-06-30 | 2017-09-08 | 武汉华星光电技术有限公司 | A kind of display panel |
| CN107219703A (en) * | 2017-07-24 | 2017-09-29 | 武汉华星光电技术有限公司 | A kind of array base palte and display panel |
| CN107290879A (en) * | 2017-08-11 | 2017-10-24 | 深圳市华星光电技术有限公司 | Light shield for liquid crystal display panel |
| CN108572486A (en) * | 2018-04-27 | 2018-09-25 | 武汉华星光电技术有限公司 | Array substrate and display panel |
| CN109979371A (en) * | 2019-04-15 | 2019-07-05 | 武汉华星光电技术有限公司 | A kind of display panel and device |
| CN111179743A (en) * | 2020-02-19 | 2020-05-19 | 京东方科技集团股份有限公司 | Display substrate and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107025893A (en) * | 2017-06-02 | 2017-08-08 | 武汉华星光电技术有限公司 | A kind of drive circuit and liquid crystal display device |
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| CN107219703A (en) * | 2017-07-24 | 2017-09-29 | 武汉华星光电技术有限公司 | A kind of array base palte and display panel |
| CN107290879A (en) * | 2017-08-11 | 2017-10-24 | 深圳市华星光电技术有限公司 | Light shield for liquid crystal display panel |
| CN108572486A (en) * | 2018-04-27 | 2018-09-25 | 武汉华星光电技术有限公司 | Array substrate and display panel |
| CN109979371A (en) * | 2019-04-15 | 2019-07-05 | 武汉华星光电技术有限公司 | A kind of display panel and device |
| CN111179743A (en) * | 2020-02-19 | 2020-05-19 | 京东方科技集团股份有限公司 | Display substrate and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106773387B (en) | 2019-07-02 |
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