CN106526929A - GOA (gate driver on array) circuit, array substrate and liquid crystal panel - Google Patents
GOA (gate driver on array) circuit, array substrate and liquid crystal panel Download PDFInfo
- Publication number
- CN106526929A CN106526929A CN201611254293.1A CN201611254293A CN106526929A CN 106526929 A CN106526929 A CN 106526929A CN 201611254293 A CN201611254293 A CN 201611254293A CN 106526929 A CN106526929 A CN 106526929A
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- China
- Prior art keywords
- stv
- goa
- holding wire
- array base
- holding
- Prior art date
- Legal status (The legal status 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 status listed.)
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Classifications
-
- 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
- G02F1/136—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
-
- 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
- G02F1/136227—Through-hole connection of the pixel electrode to the active element through an insulation layer
-
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
- H05F3/00—Carrying-off electrostatic charges
- H05F3/02—Carrying-off electrostatic charges by means of earthing connections
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Optics & Photonics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal (AREA)
Abstract
The invention provides a GOA (gate driver on array) circuit which comprises a GOA unit and at least one STV (vertical start pulse) signal wire. The STV signal wires are connected with the GOA unit, and an electrostatic protection device is arranged between the STV signal wires and the GOA or a source grounding signal wire of an array substrate. The invention further provides the array substrate and a liquid crystal panel. The array substrate comprises the GOA circuit. The liquid crystal panel comprises the GOA circuit. Compared with the prior art, the GOA circuit, the array substrate and the liquid crystal panel have the advantages that the electrostatic protection device is arranged between the STV signal wires and the GOA unit or a grounding end of the GOA circuit, accordingly, the problem of damage to existing STV signal wires due to static electricity can be solved, and forward and reverse scanning failure of existing GOA circuits or failure of existing GOA units can be avoided.
Description
Technical field
The present invention relates to a kind of display technology field, particularly a kind of GOA circuits and liquid crystal panel.
Background technology
Liquid crystal display is very conventional technology in modern display.In the manufacture process of liquid crystal panel or use process
In can usually produce electrostatic, damage by static electricity can cause the abnormal of panel even to fail, therefore to the design of electrostatic defending in panel
It is very important in design.
At present, GOA technologies are used widely in TFT-LCD manufactures field, GOA (Gate Driver on
Array, array base palte row drive) technology refers to and for the gate drivers (Gate Driver) of TFT-LCD to be integrated in array base palte
On, form the turntable driving of counter plate.
Yet with its circuit connection and the complexity of technique, the yields of GOA circuits is very low, wherein, affects its non-defective unit
One principal element of rate is accumulation of static electricity and ESD (Electro-Static discharge, Electro-static Driven Comb), existing
In the manufacture process of GOA circuits, due to STV (Vertical Start Pluse, frame unbalanced pulse signal) holding wire it is longer,
Substantial amounts of electric charge is accumulated in plasma gas-phase deposit environment easily, and it is easy when these electric charges are discharged to the inside of GOA unit
Cause GOA unit by the generation of electrostatic breakdown phenomenon, the GOA unit short circuit for causing, make GOA circuits cannot normal work, so as to
Cause the display device cannot normal display picture.STV holding wires can also be injured when there is damage by static electricity, causing GOA to fail, its
In be easiest to be wounded is then outermost STV holding wires.
The content of the invention
For overcoming the deficiencies in the prior art, the present invention provides a kind of GOA circuits and liquid crystal panel, so as to prevent in use
The problem of the GOA circuit malfunctions that electrostatic is caused to the damage by static electricity of STV holding wires.
The invention provides a kind of GOA circuits, at least one STV signal being connected including GOA unit and with GOA unit
Line, is provided with electrostatic protection apparatus between the STV holding wires and the source ground holding wire of GOA unit or array base palte.
Further, electrostatic protection apparatus, the electrostatic protection apparatus are provided between the STV holding wires and GOA unit
It is by drawing at least one standby STV holding wire being connected with GOA unit by cross-over mode on STV holding wires.
Further, the STV is provided with more than two, is arranged on outermost and array base palte source ground holding wire
At least one standby STV holding wire being connected with GOA unit by cross-over mode is drawn on an adjacent STV holding wire.
Further, electrostatic protection apparatus are provided between the STV holding wires and the source ground holding wire of array base palte,
The electrostatic protection apparatus include nesa coating, and the nesa coating is led with STV holding wires and source ground holding wire
Lead to and formed electric capacity, by first on array base palte between the nesa coating, STV holding wires and source ground holding wire
Passivation layer insulate.
Further, at least one via on the nesa coating Jing array base paltes is connected with source ground holding wire
Conducting.
Further, the first passivation layer via hole and organic photoresistance film layer mistake on the nesa coating Jing array base paltes
Hole is connected conducting with source ground holding wire.
Further, the STV holding wires are provided with least two, are arranged on outermost adjacent with source ground holding wire
A STV holding wire Jing nesa coating and source ground holding wire turn on.
Present invention also offers a kind of array base palte, including described GOA circuits.
Present invention also offers a kind of liquid crystal panel, including described GOA circuits.
The present invention compared with prior art, by setting between the earth terminal of STV holding wires and GOA unit or GOA circuits
Put electrostatic protection apparatus, so as to solve the problems, such as damage by static electricity STV holding wires, prevent GOA circuits it is positive and negative sweep failure or GOA it is mono-
The problem of unit's failure.
Description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention 1.
Fig. 2 is the structural representation of the embodiment of the present invention 2.
Fig. 3 is the profile of the embodiment of the present invention 2.
Specific embodiment
With reference to the accompanying drawings and examples the present invention is described in further detail.
STV holding wires 1 general in prior art are generally arranged at the outermost of GOA circuits, are so highly susceptible to quiet
Electric burn.
In the present invention, STV holding wires 1 include but is not limited to this, and defined herein STV holding wires are only for the purposes of to the present invention
Middle position relationship is described, and the inventive point of the present invention is only to need to arrange electrostatic on an outermost STV holding wire
Preventer.
A kind of GOA circuits of the present invention, at least one STV holding wire being connected including GOA unit and with GOA unit,
Electrostatic protection apparatus are provided between the STV holding wires 1 and the source ground holding wire 2 of GOA unit or array base palte.
It is illustrated in figure 1 the GOA circuits of the embodiment of the present invention 1, figure acceptance of the bid shows two STV holding wires 1, wherein one
For STV_D2U signal input lines 8 (for being scanned from bottom to up, i.e., counter to sweep), another is STV_U2D signal input lines 9
(for being scanned from top to bottom, i.e., just sweeping), it is electric that the STV_U2D signal input lines 9 in the STV holding wires 1 are arranged on GOA
Outermost in road is adjacent with source ground holding wire (GND) 2 of array base palte, is arranged on outermost and source ground signal
At least one standby STV letter being connected with GOA unit by cross-over mode is drawn on the adjacent STV_U2D signal input lines 9 of line 2
Number line (STV_U2D signal input lines) 3, so as to space signal input can be provided when outermost STV holding wires wound,
Can prevent GOA circuits it is positive and negative sweep failure live GOA unit failure problem.
It is illustrated in figure 2 the GOA circuits of the embodiment of the present invention 2, figure acceptance of the bid shows two STV holding wires 1, wherein one
For STV_D2U signal input lines 8 (for being scanned from bottom to up, i.e., counter to sweep), another is STV_U2D signal input lines 9
(for being scanned from top to bottom, i.e., just sweeping), it is electric that the STV_U2D signal input lines 9 in the STV holding wires 1 are arranged on GOA
Outermost in road is adjacent with source ground holding wire (GND) 2 of array base palte, and the STV_U2D signal input lines 9 are connect with source electrode
Electrostatic protection apparatus are provided between earth signal line (GND) 2, and the electrostatic protection apparatus include nesa coating 4, as shown in figure 3,
The nesa coating 4 is connected with STV_U2D signal input lines 9 and source ground holding wire 2 and turns on and formed electric capacity 10, institute
State between nesa coating 4, STV_U2D signal input lines 9 and source ground holding wire 2 by the first passivation on array base palte
Layer 12 insulate, and is located between ILD (inter-level dielectric) in the via of insulating barrier 13 in source ground holding wire 2, insulating barrier 13 between ILD
On gate insulator 14；By the electric charge accumulated on outermost STV holding wires 1 is led by source ground holding wire 2
Go out, so as to protect to STV holding wires, prevent the damage by static electricity that accumulation of static electricity is caused.
In example 2, the nesa coating 4 is connected with the source ground holding wire (GND) 2 of array base palte through hole
Conducting, specifically, as shown in figure 3, the first passivation layer via hole 6 on 4 the first passivation layers of Jing (PV layers) 12 of nesa coating and
Organic photoresistance film layer via 7 of organic photoresistance film layer (PLN layers) 15 is connected conducting with the source ground holding wire 2 of array base palte.
A kind of array base palte and liquid crystal panel of the present invention, includes above-mentioned GOA circuits, due to above right
GOA circuit parts are described, and here is not being repeated.
Although illustrating and describing the present invention with reference to specific embodiment, it should be appreciated by those skilled in the art that：
In the case of without departing from the spirit and scope of the present invention limited by claim and its equivalent, can here carry out form and
Various change in details.
Claims (9)
1. a kind of GOA circuits, at least one STV holding wire (1) being connected including GOA unit and with GOA unit, its feature exist
In：Electrostatic defending dress is provided between the source ground holding wire (2) of STV holding wires (1) and GOA unit or array base palte
Put.
2. GOA circuits according to claim 1, it is characterised in that：STV holding wires (1) is provided with and GOA unit between
Electrostatic protection apparatus, the electrostatic protection apparatus are by drawing at least one on STV holding wires (1) by cross-over mode and GOA
Standby STV holding wires (3) of unit connection.
3. GOA circuits according to claim 2, it is characterised in that：The STV is provided with more than two, is arranged on outermost
A STV holding wire (1) adjacent with the source ground holding wire (2) of array base palte on draw at least one by bridging side
Standby STV holding wires (3) that formula is connected with GOA unit.
4. GOA circuits according to claim 1, it is characterised in that：The STV holding wires 1 are connect with the source electrode of array base palte
It is provided with electrostatic protection apparatus between earth signal line (2), the electrostatic protection apparatus include nesa coating (4), it is described transparent to lead
Electrolemma (4) is turned on and forms electric capacity (10), the nesa coating with STV holding wires (1) and source ground holding wire (2)
(4), by the first passivation layer (12) insulation on array base palte between STV holding wires (1) and source ground holding wire (2).
5. GOA circuits according to claim 4, it is characterised in that：On nesa coating (4) Jing array base paltes extremely
A few via is connected conducting with source ground holding wire (2).
6. GOA circuits according to claim 5, it is characterised in that：On nesa coating (4) Jing array base paltes
One passivation layer via hole (6) and organic photoresistance film layer via (7) are connected conducting with source ground holding wire (2).
7. GOA circuits according to claim 4-6 any one, it is characterised in that：STV holding wires (1) are provided with least two
Root, is arranged on an outermost STV holding wire (1) Jing nesa coating (4) adjacent with source ground holding wire (2) and source
Pole ground signal line (2) is turned on.
8. a kind of array base palte, it is characterised in that：Including the GOA circuits as belonging to claim 1-7 any one.
9. a kind of liquid crystal panel, it is characterised in that：Including the GOA circuits as described in claim 1-7 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611254293.1A CN106526929A (en) | 2016-12-30 | 2016-12-30 | GOA (gate driver on array) circuit, array substrate and liquid crystal panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611254293.1A CN106526929A (en) | 2016-12-30 | 2016-12-30 | GOA (gate driver on array) circuit, array substrate and liquid crystal panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106526929A true CN106526929A (en) | 2017-03-22 |
Family
ID=58335664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611254293.1A Pending CN106526929A (en) | 2016-12-30 | 2016-12-30 | GOA (gate driver on array) circuit, array substrate and liquid crystal panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106526929A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108508663A (en) * | 2018-03-14 | 2018-09-07 | 深圳市华星光电技术有限公司 | Array substrate, display panel and display device |
| CN109375442A (en) * | 2018-12-20 | 2019-02-22 | 深圳市华星光电半导体显示技术有限公司 | Display panel and display device |
| CN111223456A (en) * | 2019-11-06 | 2020-06-02 | 深圳市华星光电半导体显示技术有限公司 | Grid drive circuit of display panel, display panel and display device |
| WO2020253302A1 (en) * | 2019-06-18 | 2020-12-24 | 京东方科技集团股份有限公司 | Electrode structure, capacitor, goa circuit, array substrate, and display panel and device |
| WO2021103145A1 (en) * | 2019-11-25 | 2021-06-03 | 深圳市华星光电半导体显示技术有限公司 | Goa circuit and display panel comprising the goa circuit |
| CN115308942A (en) * | 2022-08-30 | 2022-11-08 | 惠科股份有限公司 | Array substrate and display panel |
| CN115542593A (en) * | 2022-08-30 | 2022-12-30 | 惠科股份有限公司 | Display panel |
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| CN103227173A (en) * | 2013-04-10 | 2013-07-31 | 京东方科技集团股份有限公司 | Array substrate, manufacturing method thereof and display device |
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| US20160284293A1 (en) * | 2014-07-17 | 2016-09-29 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Self-compensating gate driving circuit |
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2016
- 2016-12-30 CN CN201611254293.1A patent/CN106526929A/en active Pending
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| CN103227173A (en) * | 2013-04-10 | 2013-07-31 | 京东方科技集团股份有限公司 | Array substrate, manufacturing method thereof and display device |
| CN203811938U (en) * | 2014-05-14 | 2014-09-03 | 北京京东方光电科技有限公司 | Display panel and display device |
| CN104090436A (en) * | 2014-06-26 | 2014-10-08 | 京东方科技集团股份有限公司 | Gate line drive circuit of array substrate and display device |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108508663A (en) * | 2018-03-14 | 2018-09-07 | 深圳市华星光电技术有限公司 | Array substrate, display panel and display device |
| CN109375442A (en) * | 2018-12-20 | 2019-02-22 | 深圳市华星光电半导体显示技术有限公司 | Display panel and display device |
| CN109375442B (en) * | 2018-12-20 | 2021-08-06 | 深圳市华星光电半导体显示技术有限公司 | Display panel and display device |
| WO2020253302A1 (en) * | 2019-06-18 | 2020-12-24 | 京东方科技集团股份有限公司 | Electrode structure, capacitor, goa circuit, array substrate, and display panel and device |
| US11803088B2 (en) | 2019-06-18 | 2023-10-31 | Beijing Boe Technology Development Co., Ltd. | Electrode structure, capacitor, goa circuit, array substrate, display panel and display device |
| CN111223456A (en) * | 2019-11-06 | 2020-06-02 | 深圳市华星光电半导体显示技术有限公司 | Grid drive circuit of display panel, display panel and display device |
| WO2021103145A1 (en) * | 2019-11-25 | 2021-06-03 | 深圳市华星光电半导体显示技术有限公司 | Goa circuit and display panel comprising the goa circuit |
| US11521528B2 (en) | 2019-11-25 | 2022-12-06 | Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | GOA circuit and display panel including same |
| CN115308942A (en) * | 2022-08-30 | 2022-11-08 | 惠科股份有限公司 | Array substrate and display panel |
| CN115542593A (en) * | 2022-08-30 | 2022-12-30 | 惠科股份有限公司 | Display panel |
| CN115542593B (en) * | 2022-08-30 | 2023-08-25 | 惠科股份有限公司 | display panel |
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20170322 |