CN202736457U - Array-substrate grid drive circuit and LCD - Google Patents
Array-substrate grid drive circuit and LCD Download PDFInfo
- Publication number
- CN202736457U CN202736457U CN 201220293564 CN201220293564U CN202736457U CN 202736457 U CN202736457 U CN 202736457U CN 201220293564 CN201220293564 CN 201220293564 CN 201220293564 U CN201220293564 U CN 201220293564U CN 202736457 U CN202736457 U CN 202736457U
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- goa
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- gate driver
- base palte
- array base
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Abstract
The utility model provides an array-substrate grid drive circuit and an LCD, wherein the array-substrate grid drive circuit comprises a plurality of GOA units and two GOA repair units which are respectively connected with a clock signal line and a low electrical-level signal line in an electrical manner and are provided with two input leads and an output lead. The input leads and the output lead pass by respective output leads of the plurality of GOA units in a cross manner. The input leads and the output lead and the respective output leads of the plurality of GOA units are insulated. By carrying out reasonable wiring of the GOA repair units of the array-substrate grid drive circuit provided by the utility model, when an abnormal GOA unit of the array-substrate grid drive circuit appears, the grid drive circuit can play a repair effect. The repair ability of the array-substrate grid drive circuit is raised and the LCD production yield is guaranteed.
Description
Technical field
The utility model relates to the grid Driving technique, relates in particular to a kind of array base palte gate driver circuit and liquid crystal display.
Background technology
Liquid crystal display is flat-panel monitor commonly used at present, and wherein Thin Film Transistor (TFT) liquid crystal display (Thin Film Transistor Liquid Crystal Display, TFT-LCD) is the main product in the present liquid crystal display.Increasingly competitive along with the TFT-LCD product, the competitiveness of product in market by employing new technology to reduce the cost of product, improves one after another in each producer.Wherein, GOA (Gate On Array) technology refers to the gate drivers of TFT-LCD (Gate Driver) is integrated on the array base palte, forms the turntable driving of counter plate.Compare tradition and cover brilliant film (Chip On Flex/Film, COF) and directly be bundled in (Chip On Glass on glass, COG) technique, the GOA technology not only can be saved cost, and panel can be accomplished the symmetrical design for aesthetic in both sides, the principal feature of this technology is to rely on GOA unit continuous trigger to realize the function of its shift LD, save binding (Bonding) zone and the Fan-out wiring space of grid integrated circuit (Gate IC), realized the design of narrow frame; Owing to can save the technique of Gate direction Bonding, promote also more favourable to production capacity and yields simultaneously.
Yet, in the GOA technology, working method continuous and continuous trigger on the GOA cellular construction has the defective of self, in case certain delegation, when supposing that here abnormal conditions appear in the capable GOA unit of n, because the capable GOA unit of n+1 need to be after the trigger pip that receives the capable GOA of n unit, just can start working, and the GOA cell operation that n is capable at this moment is unusual, can not export normally, therefore, the GOA unit that n+1 is capable can not work, and then the GOA unit of the capable back of n+1 also can't work, liquid crystal display can't normally show, the structure of liquid crystal display that the GOA unit of operation irregularity can occur with reference to existing shown in Fig. 1 particularly, among Fig. 1, described liquid crystal display 11 is for having the liquid crystal display of monolateral array base palte gate driver circuit 14, specifically comprise display part 12 and be positioned at monolateral array base palte gate driver circuit 14, wherein, when unusual GOA unit 141 appears in array base palte gate driver circuit 14, then 13 of the display parts of GOA unit 141 correspondences can not show normally unusually, being positioned at simultaneously the GOA unit of described GOA unit below 141 can not work, and affects the yields of production of liquid crystal displays.
The utility model content
In view of this, fundamental purpose of the present utility model is to provide a kind of array base palte gate driver circuit and liquid crystal display, can improve the repair ability of array base palte gate driver circuit.
For achieving the above object, the technical solution of the utility model is achieved in that
This array base palte gate driver circuit comprises a plurality of GOA unit, and described array base palte gate driver circuit also comprises: GOA repairs the unit; Described GOA repairs the unit and is electrically connected with clock cable and low level signal line respectively, and be provided with two input leads and an output lead, described input lead and output lead intersect by described a plurality of GOA unit output lead separately, and with described a plurality of GOA unit output lead mutually insulated separately.
Described array base palte gate driver circuit comprises that a GOA repairs the unit, is positioned at the top of first GOA unit or the below of last GOA unit.
Described array base palte gate driver circuit comprises that two GOA repair the unit, lay respectively at the top of first GOA unit and the below of last GOA unit.
N GOA cell operation of described array base palte gate driver circuit is unusual, then the described GOA input lead one of repairing the unit is communicated with by pad with the output lead of described n-1 GOA unit, the input lead two that described GOA repairs the unit is communicated with by pad with the output lead of described n+1 GOA unit, and the output lead that described GOA repairs the unit is communicated with by pad with the output lead of described n GOA unit.
Described n GOA unit cuts off by cutting off a little for the input end that receives a GOA unit triggers signal.
Described n GOA unit cuts off by cutting off a little for the output terminal of exporting a GOA unit reset signal and next GOA unit triggers signal.
The application provides a kind of liquid crystal display in addition, and this liquid crystal display comprises aforesaid array base palte gate driver circuit.
The utility model reasonably connects up by the GOA reparation unit of pair array substrate gate driver circuit, can be when unusual GOA unit appears in described array base palte gate driver circuit, play repair, improve the repair ability of array base palte gate driver circuit, guaranteed the yields of production of liquid crystal displays.
Description of drawings
Fig. 1 is the structural representation of the liquid crystal display of the existing GOA unit that operation irregularity occurs;
Fig. 2 is the structural representation of array base palte gate driver circuit of the present utility model;
Fig. 3 is the structural representation that the GOA unit of operation irregularity appears in array base palte gate driver circuit of the present utility model;
Fig. 4 is the structural representation of the liquid crystal display of application array base palte gate driver circuit of the present utility model.
Description of reference numerals: 11-liquid crystal display; The 12-display part; Display part corresponding to the unusual GOA of 13-unit; 14-array base palte gate driver circuit; The unusual GOA of 141-unit; 21-GOA repairs the unit; 22,23,24-GOA unit; 221-pad one; 231-pad two; 241-pad three; 142-GOA repairs the unit.
Embodiment
Basic thought of the present utility model is: comprise a plurality of GOA cellular array substrate gate driver circuits, also comprise: GOA repairs the unit; Described GOA repairs the unit and is electrically connected with clock cable and low level signal line respectively, and be provided with two input leads and an output lead, described input lead and output lead intersect by described a plurality of GOA unit output lead separately, and with described a plurality of GOA unit output lead mutually insulated separately.
For making the purpose of this utility model, technical scheme and advantage clearer, following specific embodiment further describes the utility model also by reference to the accompanying drawings.
Fig. 2 shows the structure of array base palte gate driver circuit of the present utility model, as shown in Figure 2, described array base palte gate driver circuit comprises that a plurality of GOA unit and GOA repair the unit, for convenience of explanation, repairing unit 21 pair array substrate gate driver circuits with the GOA unit 22 shown in Fig. 2, GOA unit 23, GOA unit 24 and GOA is specifically described.
Described GOA repairs unit 21 and is provided with two input leads and an output lead, and described input lead and output lead intersect by described a plurality of GOA unit output lead separately, and with described a plurality of GOA unit output lead mutually insulated separately.
Particularly, when described array base palte gate driver circuit comprised that a GOA repairs unit 21, described GOA repairs the unit can be positioned at the top of first GOA unit or the below of last GOA unit.
Repair the unit when described array base palte gate driver circuit comprises two GOA, lay respectively at the top of first GOA unit and the below of last GOA unit.
Be to be understood that, two lead-in wires that are positioned at the left side among Fig. 2 are work necessary clock cable (CLK) and low level signal line (VSS) of array base palte gate driver circuit, certainly, described GOA repairs the unit and also should have the lead-in wire that connects this two signal line.
Occur the structural representation of the GOA unit of operation irregularity below in conjunction with the utility model array base palte gate driver circuit shown in Fig. 3, the Principles of array base palte gate driver circuit shown in Figure 2 is elaborated; Wherein, array base palte gate driver circuit shown in Figure 3 is that the circuit structure when unusual appears in GOA unit 23 in the array base palte gate driver circuit shown in Figure 2.
With reference to Fig. 3, described array base palte gate driver circuit comprises that the GOA that is positioned at first top, GOA unit repairs unit 21 and unusual GOA unit 23 occurs, for ease of describing, Fig. 3 only shows previous GOA unit 22 and a rear GOA unit 24 of the unusual GOA unit 23 of described appearance; The structure of wherein said array base palte gate driver circuit and the difference of Fig. 2 are:
GOA unit 23 operation irregularities that described appearance is unusual, then the described GOA input lead one of repairing unit 21 is communicated with by pad 1 with the output lead of described GOA unit 22, the input that described GOA repairs unit 21 goes out lead-in wire two and is communicated with by pad 3 241 with the output lead of described GOA unit 24, the output lead that described GOA repairs unit 21 is communicated with by pad 2 231 with the output lead of described unusual GOA unit 23, wherein, pad identifies by "●" in Fig. 3.
Simultaneously, owing to cisco unity malfunction of unusual GOA unit 23 occurring, in order to prevent that GOA unit 23 from causing other influences to the display part of the liquid crystal display of self correspondence, the input end that GOA unit 23 need to be used for receiving GOA unit 22 trigger pips cut off by cutting off a little; The output terminal that described GOA unit 23 is used for output GOA unit 22 reset signals and GOA unit 24 trigger pips cuts off by cutting off a little, wherein, cuts off a little identifying by " * " in Fig. 3.
The repair process of array base palte gate driver circuit shown in Figure 3 is: the unit is repaired in GOA unit 22 by the GOA that is connected with pad 1 input lead one inputs to described GOA reparation unit 21 with the signal of self exporting as trigger pip (INPUT); Described GOA repairs unit 21 and starts working, and by the output lead that is connected with described pad 231 with the output (OUTPUT) as described unusual GOA unit 23 of the signal of self output, also be sent to simultaneously GOA unit 24, trigger pip (INTPUT) as described GOA unit 24, also be sent to GOA unit 22, as the reset signal (RESET) of described GOA unit 22; Unit 21 is repaired in described GOA unit 24 by the described GOA that is connected with pad 241 input lead two inputs to described GOA reparation unit 21, the work of repairing unit 21 to stop described GOA with the signal of self exporting as reset signal (RESET).The above-mentioned course of work can be avoided the impact that brings well when unusual GOA unit appears in the array base palte gate driver circuit, and more easily realizes.Should be appreciated that when unusual GOA unit occurring, described GOA repairs unit 21 needs pad to be communicated with wiring between CLK and the VSS too.
Fig. 4 shows the structure of the liquid crystal display of using above-mentioned array base palte gate driver circuit, described liquid crystal display 11 comprises display part 12, array base palte gate driver circuit 14, wherein, described array base palte gate driver circuit 14 comprises a plurality of GOA unit, comprise that also the GOA that is positioned at first top, GOA unit repairs unit 142, when unusual GOA unit 141 appears in described array base palte gate driver circuit 14, can repair the reparation that array base palte gate driver circuit 14 is realized in unit 142 by GOA, guarantee the normal demonstration of liquid crystal display.
Should be appreciated that described array base palte gate driver circuit can also comprise that two or more GOA repair the unit, when comprising that two GOA repair the unit, can lay respectively at first top, GOA unit and below, last GOA unit; In order to connect up conveniently, more preferably, two input leads and an output lead of being positioned at the GOA reparation unit of first top, GOA unit can intersect by being positioned at the GOA unit output lead separately of described array base palte gate driver circuit the first half; The GOA that is positioned at below, last GOA unit repairs two input leads of unit and output lead can intersect residue GOA unit output lead separately by described array base palte gate driver circuit, wherein, described residue GOA unit is the uncrossed GOA unit that passes through of input, output lead that the described GOA that is positioned at first top, GOA unit repairs the unit, concrete Principles and above-mentioned array base palte gate driver circuit are similar, repeat no more.
The utility model also provides a kind of liquid crystal display, and described liquid crystal display includes aforesaid array base palte gate driver circuit.
The above is preferred embodiment of the present utility model only, is not be used to limiting protection domain of the present utility model.
Claims (7)
1. an array base palte gate driver circuit comprises a plurality of GOA unit, it is characterized in that, described array base palte gate driver circuit also comprises: GOA repairs the unit; Wherein,
Described GOA repairs the unit and is electrically connected with clock cable and low level signal line respectively, and be provided with two input leads and an output lead, described input lead and output lead intersect by described a plurality of GOA unit output lead separately, and with described a plurality of GOA unit output lead mutually insulated separately.
2. array base palte gate driver circuit according to claim 1 is characterized in that, described array base palte gate driver circuit comprises that a GOA repairs the unit, is positioned at the top of first GOA unit or the below of last GOA unit.
3. array base palte gate driver circuit according to claim 1 is characterized in that, described array base palte gate driver circuit comprises that two GOA repair the unit, lay respectively at the top of first GOA unit and the below of last GOA unit.
4. according to claim 1 to 3 each described array base palte gate driver circuits, it is characterized in that, n GOA cell operation of described array base palte gate driver circuit is unusual, then the described GOA input lead one of repairing the unit is communicated with by pad with the output lead of described n-1 GOA unit, the input lead two that described GOA repairs the unit is communicated with by pad with the output lead of described n+1 GOA unit, and the output lead that described GOA repairs the unit is communicated with by pad with the output lead of described n GOA unit.
5. array base palte gate driver circuit according to claim 4 is characterized in that, described n GOA unit cuts off by cutting off a little for the input end that receives a GOA unit triggers signal.
6. array base palte gate driver circuit according to claim 4 is characterized in that, described n GOA unit cuts off by cutting off a little for the output terminal of exporting a GOA unit reset signal and next GOA unit triggers signal.
7. a liquid crystal display is characterized in that, described liquid crystal display comprises such as each described array base palte gate driver circuit of claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220293564 CN202736457U (en) | 2012-06-18 | 2012-06-18 | Array-substrate grid drive circuit and LCD |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220293564 CN202736457U (en) | 2012-06-18 | 2012-06-18 | Array-substrate grid drive circuit and LCD |
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| Publication Number | Publication Date |
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| CN202736457U true CN202736457U (en) | 2013-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220293564 Expired - Lifetime CN202736457U (en) | 2012-06-18 | 2012-06-18 | Array-substrate grid drive circuit and LCD |
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| CN (1) | CN202736457U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928003A (en) * | 2013-12-31 | 2014-07-16 | 厦门天马微电子有限公司 | Grid driving circuit, restoration method thereof, display panel and display device |
| CN103928008A (en) * | 2014-04-24 | 2014-07-16 | 深圳市华星光电技术有限公司 | GOA circuit used for liquid crystal display and liquid crystal display device |
| CN105096789A (en) * | 2015-09-25 | 2015-11-25 | 武汉华星光电技术有限公司 | Common circuit for gate driver on array (GOA) test and shutdown ghost elimination |
| CN105096876A (en) * | 2015-08-19 | 2015-11-25 | 深圳市华星光电技术有限公司 | GOA driving system and liquid crystal panel |
| CN105096874A (en) * | 2015-08-12 | 2015-11-25 | 武汉华星光电技术有限公司 | GOA (Gate Driver On Array) circuit, array substrate and liquid crystal display |
| CN105551423A (en) * | 2016-03-04 | 2016-05-04 | 京东方科技集团股份有限公司 | Grid integrated driving circuit, array substrate and repair method of grid integrated driving circuit |
| WO2016173105A1 (en) * | 2015-04-27 | 2016-11-03 | 深圳市华星光电技术有限公司 | Goa circuit repair method |
| CN106328038A (en) * | 2016-10-31 | 2017-01-11 | 京东方科技集团股份有限公司 | Gate drive circuit, repair method and display device thereof |
| CN107945724A (en) * | 2017-11-17 | 2018-04-20 | 昆山龙腾光电有限公司 | Gate driving circuit, the restorative procedure of gate driving circuit and display device |
| GB2587258A (en) * | 2019-01-17 | 2021-03-24 | Lg Display Co Ltd | Gate driver and method of repairing the same |
| US11114000B2 (en) | 2019-05-31 | 2021-09-07 | Lg Display Co., Ltd. | Gate driver and method of repairing the same |
-
2012
- 2012-06-18 CN CN 201220293564 patent/CN202736457U/en not_active Expired - Lifetime
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928003A (en) * | 2013-12-31 | 2014-07-16 | 厦门天马微电子有限公司 | Grid driving circuit, restoration method thereof, display panel and display device |
| CN103928008A (en) * | 2014-04-24 | 2014-07-16 | 深圳市华星光电技术有限公司 | GOA circuit used for liquid crystal display and liquid crystal display device |
| WO2016173105A1 (en) * | 2015-04-27 | 2016-11-03 | 深圳市华星光电技术有限公司 | Goa circuit repair method |
| CN105096874B (en) * | 2015-08-12 | 2017-10-17 | 武汉华星光电技术有限公司 | A kind of GOA circuits, array base palte and liquid crystal display |
| CN105096874A (en) * | 2015-08-12 | 2015-11-25 | 武汉华星光电技术有限公司 | GOA (Gate Driver On Array) circuit, array substrate and liquid crystal display |
| CN105096876B (en) * | 2015-08-19 | 2017-06-27 | 深圳市华星光电技术有限公司 | GOA drive systems and liquid crystal panel |
| CN105096876A (en) * | 2015-08-19 | 2015-11-25 | 深圳市华星光电技术有限公司 | GOA driving system and liquid crystal panel |
| CN105096789A (en) * | 2015-09-25 | 2015-11-25 | 武汉华星光电技术有限公司 | Common circuit for gate driver on array (GOA) test and shutdown ghost elimination |
| CN105096789B (en) * | 2015-09-25 | 2018-01-30 | 武汉华星光电技术有限公司 | GOA tests the common circuit with removing power-off ghost shadow |
| CN105551423B (en) * | 2016-03-04 | 2018-06-29 | 京东方科技集团股份有限公司 | A kind of grid integrated drive electronics, array substrate and its restorative procedure |
| CN105551423A (en) * | 2016-03-04 | 2016-05-04 | 京东方科技集团股份有限公司 | Grid integrated driving circuit, array substrate and repair method of grid integrated driving circuit |
| US10319282B2 (en) | 2016-03-04 | 2019-06-11 | Boe Technology Group Co., Ltd. | Gate driving circuit, an array substrate and a method for recovering the same |
| CN106328038A (en) * | 2016-10-31 | 2017-01-11 | 京东方科技集团股份有限公司 | Gate drive circuit, repair method and display device thereof |
| CN106328038B (en) * | 2016-10-31 | 2019-04-02 | 京东方科技集团股份有限公司 | A kind of gate driving circuit, its restorative procedure and display device |
| CN107945724A (en) * | 2017-11-17 | 2018-04-20 | 昆山龙腾光电有限公司 | Gate driving circuit, the restorative procedure of gate driving circuit and display device |
| CN107945724B (en) * | 2017-11-17 | 2021-04-23 | 昆山龙腾光电股份有限公司 | Gate drive circuit, repair method of gate drive circuit and display device |
| GB2587258A (en) * | 2019-01-17 | 2021-03-24 | Lg Display Co Ltd | Gate driver and method of repairing the same |
| GB2587258B (en) * | 2019-01-17 | 2022-04-27 | Lg Display Co Ltd | Gate driver and method of repairing the same |
| US11114000B2 (en) | 2019-05-31 | 2021-09-07 | Lg Display Co., Ltd. | Gate driver and method of repairing the same |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING BOE PHOTOELECTRICITY SCIENCE + TECHNOLOGY Effective date: 20150625 Owner name: JINGDONGFANG SCIENCE AND TECHNOLOGY GROUP CO., LTD Free format text: FORMER OWNER: BEIJING BOE PHOTOELECTRICITY SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20150625 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150625 Address after: 100015 Jiuxianqiao Road, Beijing, No. 10, No. Patentee after: BOE Technology Group Co., Ltd. Patentee after: Beijing BOE Photoelectricity Science & Technology Co., Ltd. Address before: 100176 Beijing city in Western Daxing District economic and Technological Development Zone, Road No. 8 Patentee before: Beijing BOE Photoelectricity Science & Technology Co., Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20130213 |
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| CX01 | Expiry of patent term |