CN101430438A - Image element structure of liquid crystal display panel and its renovation method - Google Patents
Image element structure of liquid crystal display panel and its renovation method Download PDFInfo
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- CN101430438A CN101430438A CNA2008102041602A CN200810204160A CN101430438A CN 101430438 A CN101430438 A CN 101430438A CN A2008102041602 A CNA2008102041602 A CN A2008102041602A CN 200810204160 A CN200810204160 A CN 200810204160A CN 101430438 A CN101430438 A CN 101430438A
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- crystal display
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000009418 renovation Methods 0.000 title 1
- 239000002184 metal Substances 0.000 claims abstract description 19
- 239000010409 thin film Substances 0.000 claims description 19
- 238000003698 laser cutting Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 239000000758 substrate Substances 0.000 description 8
- 238000003466 welding Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses a pixel structure of a liquid crystal display panel and a repairing method thereof. The pixel structure of the liquid crystal display panel comprises a plurality of grid scanning lines which are formed on a first metal layer and used for providing a scanning drive signal; a plurality of data lines which are formed on a second metal layer and used for providing a data signal; the crossing locations of the grid scanning lines and the data lines are formed with pixel areas; each pixel area comprises a pixel electrode and a film transistor; the pixel structure of the liquid crystal display panel also comprises a plurality of shading lines which are formed on the second metal layer and arranged besides the grid scanning lines and approximately extend along the grid scanning lines; wherein, a salient crossed with the shading lines is formed on the grid scanning lines; or a salient crossed with the grid scanning lines is formed on the shading lines. The liquid crystal display panel and the repairing method thereof provided by the invention can repair the broken circuit of the scanning lines and can achieve the repairing effects only by setting one salient on the grid scanning lines or the shading line.
Description
Technical field
The present invention relates to a kind of liquid crystal display panel pixel structure and restorative procedure thereof, particularly relate to a kind of liquid crystal display panel pixel structure and restorative procedure thereof that sweep trace opens circuit of repairing.
Background technology
Tft liquid crystal show (panel of TFT-LCD) be utilize thin film transistor (TFT) (TFT) thus the power of the orientation control printing opacity of control liquid crystal molecule is come display image.A complete TFT LCD panel generally includes module backlight, polaroid, and the tft array infrabasal plate, CF (color film) upper substrate is clipped in layer of liquid crystal molecule and driving circuit between the upper and lower base plate.Viewing area on the tft array substrate comprises a plurality of subpixel area, each subpixel area generally is divided into two controlling grid scan lines and two data lines and intersects formed rectangle or other shape area, be provided with thin film transistor (TFT) and pixel electrode in it, thin film transistor (TFT) serves as on-off element.
Controlling grid scan line and data line are mainly used to provide signal of video signal and drive pixel electrode, film forming in the time of still owing to making, and little shadow, the image of manufacturing process such as etching, controlling grid scan line and data line open circuit or short circuit easily, cause line defect.
For this reason, U.S. Pat 20050285989 discloses a kind of to data line the open circuit structure and the restorative procedure thereof of the liquid crystal display substrate repaired, the structure of this tft array substrate as shown in Figure 1, TFT substrate 1 comprise in one direction the controlling grid scan line 2 that extends and with the upwardly extending data line 6 in the side of controlling grid scan line 2 perpendicular; Controlling grid scan line 2 and data line 6 intersect to form pixel region, are provided with TFT 5 and transparent pixels electrode 9 in it, and pixel electrode 9 is connected by the source electrode of contact hole 9a and TFT 5, wherein data line 6 contain at least two with the overlapping projection 6a of shading line 2a; Shading line 2a and 2a-2 is positioned at the both sides of data line 6; Wherein controlling grid scan line 2, shading line 2a and 2a-2 are formed on the first metal layer; data line 6 is formed on second metal level; the first metal layer directly is deposited on the glass substrate; deposit first protective seam then successively; amorphous silicon layer; second metal level, second protective seam and ITO pixel electrode layer.If the 6b of broken string place appears in signal wire, can utilize shading line 2a that the situation that data line 6 opens circuit is repaired, only need carry out twice laser bonding during reparation at the lap (laser radiation part 6c) of projection 6a and shading line 2a and just can open circuit and repair data line.But adopt opening circuit that above technology can only repairing pixel interval censored data line, occur on the controlling grid scan line, then can not repair if open circuit.
Therefore, for the yield of avoiding the production of LCD panel to cause owing to line defect descends, be necessary sweep trace opened circuit and repair.
Summary of the invention
Technical matters to be solved by this invention provides a kind of liquid crystal display panel pixel structure and restorative procedure thereof, can repair the thin-film transistor array base-plate that sweep trace opens circuit.
The present invention solves the problems of the technologies described above the technical scheme that adopts to provide a kind of liquid crystal display panel pixel structure, comprises many controlling grid scan lines, is formed on the first metal layer, and scanning drive signal is provided; Many data lines are formed on second metal level, and data-signal is provided, and described controlling grid scan line and described data line intersection are formed with pixel region, and each pixel region comprises a pixel electrode and a thin film transistor (TFT); Many shading lines are formed on second metal level, and it is other and roughly extend along controlling grid scan line to be positioned at described controlling grid scan line; Wherein, be formed with the projection that overlaps mutually with described shading line on the described controlling grid scan line, be formed with the projection that overlaps mutually with described controlling grid scan line on the perhaps described shading line.
Above-mentioned liquid crystal display panel pixel structure, wherein, in each pixel region on the described controlling grid scan line or be formed with a projection on the described shading line.
The present invention is for solving the problems of the technologies described above the restorative procedure that a kind of above-mentioned pixel structure of liquid crystal display panel also is provided, and wherein, described method comprises the steps:
If a) broken string appears in controlling grid scan line, link to each other with the shading line by the end of described projection controlling grid scan line at the broken string place;
B) described shading line links to each other by the other end of the drain and gate sweep trace of broken string place thin film transistor (TFT);
C) cut off the source electrode of broken string place thin film transistor (TFT) and being connected of data line.
In the restorative procedure of above-mentioned pixel structure of liquid crystal display panel, described projection links to each other with the shading line by the end of laser bonding with controlling grid scan line.
In the restorative procedure of above-mentioned pixel structure of liquid crystal display panel, source electrode being connected of described broken string place thin film transistor (TFT) by laser cutting and data line.
The present invention contrasts prior art following beneficial effect: prior art can only the repair data line, and two projection reparations need be set, and liquid crystal display panel pixel structure provided by the invention and restorative procedure thereof can repair sweep trace and open circuit, and only need can reach repairing effect in that a projection is set on the controlling grid scan line or on the shading line.In addition, on sweep trace, increase this projection and also help the resistance that reduces sweep trace, reduce signal delay.
Description of drawings
Fig. 1 is a TFT board structure synoptic diagram in the prior art.
Fig. 2 is the structural representation of display panels first embodiment of the present invention.
Fig. 3 is the repairing synoptic diagram of sweep trace in the display panels among Fig. 2.
Fig. 4 is the structural representation of display panels second embodiment of the present invention.
Fig. 5 is the repairing synoptic diagram of sweep trace in the display panels among Fig. 4.
Among the figure:
1 TFT substrate, 2 controlling grid scan line 2a, 2a-2 shading line
5 TFT, 6 data line 6a projections
The 6b broken string 6c of place laser radiation part 9 pixel electrodes
The 9a contact hole
10 controlling grid scan lines, 11 projections, 12 welding positions
20 data lines, 21 drain electrodes of 13 overlapping places
22 source electrodes, 23 shading lines, 24 cut-off parts
25 projections, 30 contact holes, 40 pixel electrodes
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
Embodiment one
Fig. 2 is the structural representation of display panels first embodiment of the present invention.
See also Fig. 2, liquid crystal display panel pixel structure disclosed by the invention comprises many controlling grid scan lines 10, is formed on the first metal layer, and scanning drive signal is provided; Many with controlling grid scan line 10 vertically insulated crossing data lines 20, be formed on second metal level, data-signal is provided, controlling grid scan line 10 and data line 20 intersections are formed with pixel region, each pixel region comprises a pixel electrode 40 and a thin film transistor (TFT), and the drain electrode 21 of thin film transistor (TFT) links to each other with pixel electrode 40 by contact hole 30.
One side of controlling grid scan line 10 is distributed with shading line 23, shading line 23 be formed on data line 20 same metal levels (second metal level) on, be used to cover light from the peripheral incident of pixel electrode 40; There is a projection 11 shading line 23 lower ends, and projection 11 can be extended to form towards shading line 23 by controlling grid scan line 10, and overlap with shading line 23.
Fig. 3 is the repairing synoptic diagram of sweep trace in the display panels among Fig. 2.
Please refer to Fig. 3, when opening circuit appears in controlling grid scan line 10, can adopt welding manner (welding) mode that this sweep trace projection 11 is conducted at its two place of overlapping mutually with shading line 23, second welding position is to get ready with 13 places, sweep trace 10 overlapping places in thin film transistor (TFT) drain electrode 21 it is conducted at two places of overlapping mutually, and thin film transistor (TFT) source electrode 22 and data line 20 junctions are formed broken string place 24 with laser cutting.So open circuit the place controlling grid scan line 10 on the signal of transmission can transmit by this shading line 23, therefore can not influence the demonstration work of this display panels.And this sweep trace upper process corresponding with the black matrix B M lightproof area on being positioned at color membrane substrates (figure does not show), even this display panels resolution is high again, the quantity of this sweep trace increases, this projection can not influence display effect yet.In addition, on sweep trace, increase this projection and also help the resistance that reduces sweep trace, reduce signal delay.
Embodiment two
Fig. 4 is the structural representation of display panels second embodiment of the present invention.
With reference to Fig. 4, what the structure of the thin-film transistor array base-plate that provides with embodiment one was different is, the projection 25 in the present embodiment is extended by shading line 23, and itself and shading line 23 (second metal level) are formed on same metal level.
Fig. 5 is the repairing synoptic diagram of sweep trace in the display panels among Fig. 4.
Please refer to Fig. 5, when opening circuit appears in sweep trace, carry out laser bonding earlier 2 times, carry out 1 cut then and can repair.First welding position is at projection 25 and sweep trace 10 overlapping places 112; Second welding position is at thin film transistor (TFT) drain electrode 21 and controlling grid scan line 10 overlapping places 113; And thin film transistor (TFT) source electrode 22 and data line 20 junctions are formed broken string place 24 with laser cutting.So controlling grid scan line 10 is realized repairing by the shading line 23 that detours.
In sum, display panels of the present invention in pixel shading line 23 or controlling grid scan line 10 on increase a projection 25, can effectively repair opening circuit of sweep trace.
Though the present invention discloses as above with preferred embodiment; right its is not in order to qualification the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; when can doing a little modification and perfect, so protection scope of the present invention is when with being as the criterion that claims were defined.
Claims (5)
1, a kind of liquid crystal display panel pixel structure comprises:
Many controlling grid scan lines are formed on the first metal layer, and scanning drive signal is provided;
Many data lines are formed on second metal level, and data-signal is provided, and described controlling grid scan line and described data line intersection are formed with pixel region, and each pixel region comprises a pixel electrode and a thin film transistor (TFT);
Many shading lines are formed on second metal level, and it is other and roughly extend along controlling grid scan line to be positioned at described controlling grid scan line;
It is characterized in that, be formed with the projection that overlaps mutually with described shading line on the described controlling grid scan line, be formed with the projection that overlaps mutually with described controlling grid scan line on the perhaps described shading line.
2, liquid crystal display panel pixel structure as claimed in claim 1 is characterized in that, in each pixel region on the described controlling grid scan line or be formed with a projection on the described shading line.
3, a kind of restorative procedure of liquid crystal display panel pixel structure as claimed in claim 1 is characterized in that, described method comprises the steps:
If a) broken string appears in controlling grid scan line, link to each other with the shading line by the end of described projection controlling grid scan line at the broken string place;
B) described shading line links to each other by the other end of the drain and gate sweep trace of broken string place thin film transistor (TFT);
C) cut off the source electrode of broken string place thin film transistor (TFT) and being connected of data line.
4, the restorative procedure of liquid crystal display panel pixel structure as claimed in claim 3 is characterized in that, described projection links to each other with the shading line by the end of laser bonding with controlling grid scan line.
5, the restorative procedure of liquid crystal display panel pixel structure as claimed in claim 3 is characterized in that, source electrode being connected by laser cutting and data line of described broken string place thin film transistor (TFT).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102041602A CN101430438B (en) | 2008-12-08 | 2008-12-08 | Image element structure of liquid crystal display panel and its renovation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008102041602A CN101430438B (en) | 2008-12-08 | 2008-12-08 | Image element structure of liquid crystal display panel and its renovation method |
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| Publication Number | Publication Date |
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| CN101430438A true CN101430438A (en) | 2009-05-13 |
| CN101430438B CN101430438B (en) | 2010-04-14 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102289119A (en) * | 2011-07-01 | 2011-12-21 | 深圳市华星光电技术有限公司 | Liquid crystal display and method for repairing broken line |
| CN102629050A (en) * | 2011-08-02 | 2012-08-08 | 京东方科技集团股份有限公司 | Pixel structure, liquid crystal display panel and method of repairing broken lines of liquid crystal display panel |
| CN103810965A (en) * | 2012-11-07 | 2014-05-21 | 上海天马微电子有限公司 | Display device and defect repairing method of pixel unit thereof |
| CN105301809A (en) * | 2015-11-19 | 2016-02-03 | 深圳市华星光电技术有限公司 | Array substrate structure and data line breakage repairing method for array substrate |
| CN109901316A (en) * | 2019-04-17 | 2019-06-18 | 成都中电熊猫显示科技有限公司 | The restorative procedure of array substrate, display panel and wiring broken string |
| CN111508968A (en) * | 2019-01-30 | 2020-08-07 | 群创光电股份有限公司 | Substrate repairing method and electronic device |
| CN113009743A (en) * | 2021-02-24 | 2021-06-22 | 武汉华星光电技术有限公司 | Pixel structure and display panel |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100444383C (en) * | 2005-11-04 | 2008-12-17 | 中华映管股份有限公司 | Thin film transistor, pixel structure, and method for repairing pixel structure |
| CN100504515C (en) * | 2006-03-13 | 2009-06-24 | 瀚宇彩晶股份有限公司 | Mending structure of LCD and mending method thererof |
| CN100428481C (en) * | 2007-04-28 | 2008-10-22 | 上海广电光电子有限公司 | Thin film transistor array base board and its repairing method |
| CN100454561C (en) * | 2007-08-07 | 2009-01-21 | 上海广电光电子有限公司 | Film transistor array substrates and its producing method, repairing method |
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2008
- 2008-12-08 CN CN2008102041602A patent/CN101430438B/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013004054A1 (en) * | 2011-07-01 | 2013-01-10 | 深圳市华星光电技术有限公司 | Liquid crystal display, array substrate of liquid crystal display and method for repairing broken line |
| CN102289119B (en) * | 2011-07-01 | 2014-02-05 | 深圳市华星光电技术有限公司 | Liquid crystal display and method for repairing broken line |
| CN102289119A (en) * | 2011-07-01 | 2011-12-21 | 深圳市华星光电技术有限公司 | Liquid crystal display and method for repairing broken line |
| US10068813B2 (en) | 2011-08-02 | 2018-09-04 | Boe Technology Group Co., Ltd. | Array substrate, liquid crystal display panel and broken-line repairing method thereof |
| CN102629050A (en) * | 2011-08-02 | 2012-08-08 | 京东方科技集团股份有限公司 | Pixel structure, liquid crystal display panel and method of repairing broken lines of liquid crystal display panel |
| CN102629050B (en) * | 2011-08-02 | 2014-06-11 | 京东方科技集团股份有限公司 | Pixel structure, liquid crystal display panel and method of repairing broken lines of liquid crystal display panel |
| CN103810965A (en) * | 2012-11-07 | 2014-05-21 | 上海天马微电子有限公司 | Display device and defect repairing method of pixel unit thereof |
| CN103810965B (en) * | 2012-11-07 | 2016-08-17 | 上海天马微电子有限公司 | Display device and defect repairing method of pixel unit thereof |
| CN105301809A (en) * | 2015-11-19 | 2016-02-03 | 深圳市华星光电技术有限公司 | Array substrate structure and data line breakage repairing method for array substrate |
| CN111508968A (en) * | 2019-01-30 | 2020-08-07 | 群创光电股份有限公司 | Substrate repairing method and electronic device |
| CN111508968B (en) * | 2019-01-30 | 2023-08-01 | 群创光电股份有限公司 | Substrate repairing method and electronic device |
| CN109901316A (en) * | 2019-04-17 | 2019-06-18 | 成都中电熊猫显示科技有限公司 | The restorative procedure of array substrate, display panel and wiring broken string |
| CN113009743A (en) * | 2021-02-24 | 2021-06-22 | 武汉华星光电技术有限公司 | Pixel structure and display panel |
| CN113009743B (en) * | 2021-02-24 | 2022-04-26 | 武汉华星光电技术有限公司 | Pixel structure and display panel |
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| CN101430438B (en) | 2010-04-14 |
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Owner name: NANJING CEC-PANDA LCD TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SVA (GROUP) CO., LTD. Effective date: 20110622 |
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