CN100590503C - Liquid crystal display panel - Google Patents
Liquid crystal display panel Download PDFInfo
- Publication number
- CN100590503C CN100590503C CN200710001886A CN200710001886A CN100590503C CN 100590503 C CN100590503 C CN 100590503C CN 200710001886 A CN200710001886 A CN 200710001886A CN 200710001886 A CN200710001886 A CN 200710001886A CN 100590503 C CN100590503 C CN 100590503C
- Authority
- CN
- China
- Prior art keywords
- data line
- pixel electrode
- disposed
- display panels
- film transistor
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Liquid Crystal (AREA)
Abstract
A LCD panel comprises a plurality of scanning lines and a plurality of data lines both of which are disposed across on a substrate; a plurality of thin-film transistors disposed on the substrate, wherein each thin-film transistor comprises a grid, a source and a drain, the grid is connected electrically with one of the scanning line, and the source is connected with one of the data line; a plurality of pixel electrodes each of which is connected electrically with a drain of one of the thin-film transistor; and an insulating layer disposed between the data lines and the pixel electrodes, wherein each pixel electrode comprises at least one extension portion disposed above the data lines. The maintenance method of the LCD panel forms a stepwise interlayer connection by using extension portions of laser fusion pixel electrodes and corresponding data lines, reconstructing signal path of the data lines by conducting character of the pixel electrodes.
Description
Technical field
The present invention relates to a kind of display, particularly a kind of display panels.
Background technology
At present, LCD is towards different application development, the size of panel (panel) also increases gradually to meet the demand of scientific and technological trend, so the complexity of processing procedure and difficulty also constantly increase along with size and raise, therefore the influence of the precision counter plate display quality of processing procedure is the important key that influences production capacity and yield.
In production process of liquid crystal displays, be subjected to easily that processing procedure pollutes or electrostatic breakdown causes line defect (line defect) or point defect (pixel defect), so-called line defect means signal wire (sweep trace (gate line) or data line (source line)) and opens circuit (open) or short circuit (short); When LCD origination point defective or line defect,, influence product quality if the action of not repairing will cause the yield of LCD to decline to a great extent.
See also Fig. 1, Fig. 1 is existing display panels line defect repairing method synoptic diagram.As shown in FIG., dot structure 100 comprises most bar sweep traces 104, plurality of data lines 106, wherein, sweep trace 104 and data line 106 cross-over configuration are on a substrate and define most pixel regions (pixel), a most pixel electrode 102 and most thin film transistor (TFT) (Thin Film Transistor, TFT) 114 be arranged at respectively in most the pixel regions, wherein, thin film transistor (TFT) 114 has a gate electrode (GateElectrode) and sweep trace 104 electric connections, one drain electrode (Drain Electrode) electrically connects with pixel electrode 102 and one source pole electrode (Source Electrode) electrically connects with data line 106.If data line 106 is because of dust (particle), oil stain or electrostatic breakdown (ESD) cause opening circuit (Open) 108 o'clock, existing repairing method directly utilizes laser chemical vapor deposition mode (LaserChemical Vapor Deposition in the part that opens circuit, Laser CVD) this opens circuit 108 to socket 110 repairings of metal wire (as the tungsten line) formation one linkage section, with the signal path of reconstruct data.Yet this kind repairing method only is applicable to that line defect among a small circle repairs, and when opening circuit 108 distance, laser chemical vapor deposition need spend long time and higher cost reconstruct signal path.And in the clean process of processing procedure rear end, when rinsing out, easily the metal of linkage section 110 is erased, caused the repairing rate low, make defective products flow into the processing procedure of next stage for 108 the foreign matter of will causing opening circuit.
In order to promote the repairing rate, the another kind of repairing method of available liquid crystal display panel is that metal wire in the both sides cross-over connection one ㄇ type of the 108a that opens circuit of data line 106 is to form a linkage section 110a, by this linkage section 110a reconstruct signal path as shown in Figure 2.Yet,, need expend the purpose that considerable time and higher cost can reach reconstruct signal path though this kind repairing method has improved the repairing rate.
Summary of the invention
In order to address the above problem, one object of the present invention is to provide a kind of display panels, directly utilizes the material conductive characteristic of pattern of pixels (pixel pattern) to repair data line and opens circuit, and can save the repairing time.
Another object of the present invention is to provide a kind of display panels, connect data line and pixel electrode (pixel electrode), utilize the signal path of the electric conductivity reconstruct data line of pixel electrode, not only can use existing light shield processing procedure, the purpose that more can reach high repair rate and repair on a large scale.
In order to achieve the above object, one embodiment of the invention provide a kind of display panels, comprise: most bar sweep traces and plurality of data lines, and cross-over configuration is on a substrate; A most thin film transistor (TFT) are disposed on the substrate, and wherein each thin film transistor (TFT) comprises a grid, one source pole and a drain electrode, one of them electric connection of grid and sweep trace, one of them electric connection of source electrode and data line; Most pixel electrodes, one of them the drain electrode electric connection of each pixel electrode and thin film transistor (TFT); And an insulation course, be disposed between data line and the pixel electrode, wherein each pixel electrode has at least one extension, and the part extension is arranged at the top of data line.The method for repairing and mending of this kind display panels is extension and a corresponding data line of utilizing the laser welding pixel electrode, connects the signal path of reconstruct data line by the conductive characteristic of pixel electrode to form the stepped layer of striding.
In order to achieve the above object, another embodiment of the present invention provides a kind of display panels, comprises: most bar sweep traces and plurality of data lines, and cross-over configuration is on a substrate; A most thin film transistor (TFT) are disposed on the substrate, and wherein each thin film transistor (TFT) comprises a grid, one source pole and a drain electrode, one of them electric connection of this grid and sweep trace, one of them electric connection of source electrode and data line; A most pixel electrode, one of them drain electrode of each pixel electrode and thin film transistor (TFT) electrically connects; And an insulation course, be disposed between data line and the pixel electrode, wherein each data line has at least one extension, and the part extension is arranged on the pixel electrode.The laser repairing method of this kind display panels is to utilize the extension of laser welding data line and corresponding pixel electrode, connects the signal path of reconstruct data line by the conductive characteristic of pixel electrode to form the stepped layer of striding.
Description of drawings
Below illustrate in detail by the specific embodiment conjunction with figs. so that the effect that makes those skilled in the art be easier to understand purpose of the present invention, technology contents, characteristics and be reached.Wherein:
Fig. 1 is that the display panels line defect of prior art is repaired synoptic diagram.
Fig. 2 is that the display panels line defect of prior art is repaired synoptic diagram.
Fig. 3 is the display panels synoptic diagram according to one embodiment of the invention.
Fig. 4 is a display panels synoptic diagram according to still another embodiment of the invention.
Fig. 5 is a display panels synoptic diagram according to still another embodiment of the invention.
Fig. 6 is the display panels synoptic diagram according to an embodiment more of the present invention.
Embodiment
Below with a preferred embodiment display panels of the present invention is described.
See also Fig. 3, Fig. 3 is the display panels synoptic diagram according to one embodiment of the invention.As shown in FIG., the dot structure 200 on the display panels comprises most bar sweep traces 204 and plurality of data lines 206, and wherein, sweep trace 204 and data line 206 cross-over configuration and define most pixel regions on a substrate; Most bar storage capacitors electrode wires 214, along sweep trace 204 direction settings and across pixel region, and with data line 206 cross-over configuration; A most thin film transistor (TFT) 216, correspondence is arranged on each pixel region respectively, wherein, thin film transistor (TFT) 216 has grid (not shown) electric connection sweep trace 204, a drain electrode (not shown) and pixel electrode 202 electric connections and one source pole (not shown) and data line 206 electric connections; Pixel electrode 202 is arranged at respectively on each pixel region, and electrically connects with the drain electrode of corresponding thin film transistor (TFT) 216, and wherein, each pixel electrode 202 has at least one extension 210, and partly extension 210 is arranged at the top of corresponding data line 206; In addition, thin-film transistor array base-plate also comprises an insulation course (not shown) and is disposed between data line 206 and the pixel electrode 202, makes extension 210 and data line 206 be electrically insulated.In this embodiment, if data line 206 causes opening circuit 208 because of dust, oil stain or electrostatic breakdown, then utilize the laser welding mode in the 208 both sides welding extensions 210 that open circuit, to connect data line 206 and pixel electrode 202, by the existing conductive characteristic of pixel electrode 202, form the signal path of a signal path 212 reconstruct data lines 206.
In addition, data line 206 also can comprise at least one extension 210, and part extension 210 is arranged on the corresponding pixel electrode 202, and it is relative, because the insulation course (not shown) is to be disposed between data line 206 and the pixel electrode 202, therefore, extension 210 is electrically isolated with pixel electrode 202.Be understandable that, only need the overlapping part of welding extension 210 and pixel electrode 202 during repairing, to connect data line 206 and pixel electrode 202, form the signal path of a signal path 212 reconstruct data lines 206 by pixel electrode 202 existing conductive characteristics.
See also Fig. 4, Fig. 4 is a display panels synoptic diagram according to still another embodiment of the invention.In this embodiment, if data line 306 open circuit 308 between adjacent pixel electrodes 302, the 302a or be positioned at above the sweep trace 304, then utilize laser welding extension 310a, 310b, make extension 310a, 310b connect data line 306 and pixel electrode 302,302a respectively, and utilize the laser deposition mode between two adjacent pixel electrodes 302,302a, to form at least one repairing pad 310c, wherein, repair pad 310c and be positioned at the upper strata of sweep trace 304 in order to connect two adjacent pixel electrodes 302,302a; Therefore, understandable, this embodiment utilizes two pixel electrodes 302,302a collocation extension 310a, 310b, repairing pad 310c and pixel electrode 302, the existing conductive characteristic of 302a, forms a signal path 312 with reconstruct data line 306.
In addition, utilize connecting data line reaches the repairing data line and opens circuit the method for purpose also applicable to sweep trace and data line short circuit (Gate-line short with Source-line with the signal path of the electric conductivity reconstruct data line of pixel electrode and collocation pixel electrode, GS short), data line and the short circuit of storage capacitors electrode wires (Source-line short with CS-line, SC short) and the line defect of adjacent data short-circuit between conductors (Source-line short with Source-line, SS short).
See also Fig. 5, Fig. 5 is the display panels synoptic diagram according to an embodiment more of the present invention.In this embodiment, the data line 406 of pixel electrode 402 both sides causes the situation of short circuit because of foreign matter 416, and therefore, the cut-off part 422 with foreign matter 416 both sides on the data line 406 cuts off (cutting) earlier, after the situation that formation data line 406 opens circuit, repair again.Understandable, repairing is to utilize laser welding extension 410, to connect data line 406 and pixel electrode 402, by the existing conductive characteristic of pixel electrode 402, forms a signal path 412 with reconstruct data line 406 again.
Again, if data line 406a in the pixel electrode 402a scope and storage capacitors electrode wires 420 cause short circuit because of foreign matter 418 situation, then the cut-off part 422a that earlier data line 406a is gone up foreign matter 418 both sides cuts off (cutting), make storage capacitors electrode wires 420 and data line not have short-circuit state and form after the situation that data line 406a opens circuit, repair again.In like manner, repairing is to utilize laser welding extension 410a, to connect data line 406a and pixel electrode 402a, by the existing conductive characteristic of pixel electrode 402a, forms a signal path 412a with reconstruct data line 406a.
See also Fig. 6, Fig. 6 is the display panels synoptic diagram according to an embodiment more of the present invention.In this embodiment, the data line 506 of pixel electrode 502a causes and sweep trace 504 situation that is short-circuited because of foreign matter 516, therefore, the mode of repairing is identical with above-mentioned all embodiment, cut-off part 522 with foreign matter 516 both sides on the data line 506 cuts off earlier, after the situation that formation data line 506 opens circuit, repair again.Same, repairing is to utilize laser welding extension 510a, 510b, make extension 510a, 510b connect data line 506 and pixel electrode 502,502a respectively, and utilize the laser deposition mode between two adjacent pixel electrodes 502,502a, to form one and repair pad 510c, wherein, repair pad 510c and then be positioned at the upper strata of sweep trace 504 in order to connect two adjacent pixel electrodes 502,502a; Therefore, understandable, this embodiment utilizes two pixel electrodes 502,502a collocation extension 510a, 510b, repairing pad 510c and pixel electrode 502, the existing conductive characteristic of 502a, the signal path 512 of reconstruct data line 506.
Comprehensively above-mentioned, utilize the signal route method of the electric conductivity reconstruct data line of pixel electrode, not only can significantly promote the repairing rate, save the repairing time and there is no too much influence for the line impedence of data line.
Following table 1 is the line impedence tabulation according to the data line of line defect laser preparing of the invention process.
Table 1
See also table 1, the general line impedence that does not have the data line of the panel of repairing is about 17639 ohm, data line is connected a pixel electrode repair then that the line impedence of data line is reduced to 16600 ohm; If connect two pixel electrodes, the line impedence of data line rises to 17500 ohm; Three pixel electrodes can be repaired if desire repairing scope need be utilized connection, and then the line impedence of data line rises to 18400 ohm slightly, have only subtle difference with the line impedence that does not have the data line of repairing panel; Therefore, on electric conductivity and indifference, still can accurate and undistorted ground transmitting signals.
In addition, the position of repairing is not limited to shown in the foregoing description, only need get final product in the both sides that data line opens circuit; Method for repairing and mending is except the described depositional mode of the foregoing description: deposit new connection line segment and stride layer and connect data line and the pixel electrode, also can be at pixel electrode layer (Pixel Electrode Layer when thin-film transistor array base-plate (array) layout (layout) of display panels, PE Layer) or source (Source/Drain Layer, SD Layer) forms one and repair pattern (repair pattern), wherein, this repairing pattern is the extension of pixel electrode layer or source.If repair pattern setting in pixel electrode layer, only need to utilize the welding of cut-out laser (cutting laser) to repair pattern, make to repair to have passage electric connection between pattern and the data line, the layer of striding that forms a staged connects, and can reach the purpose that connects data line and pixel electrode; In like manner, be to be arranged at source if repair pattern, only need to utilize the cut-out laser welding to repair pattern to pixel electrode layer, can reach the purpose that connects data line and pixel electrode.Therefore, repair pattern and also can connect data line and pixel electrode, that is, the material of extension for example can be outside the tungsten line, still can be according to the determining positions of repairing pattern, for example if repairing pattern is the extension of pixel electrode layer, then the material of extension is indium tin oxide or is any conductive material; Again, be the extension of source if repair pattern, then the material of extension is chromium (Cr) or all can for any conducting metal.Understandable, the material of repairing pad is all conductive material, for example: chromium, tungsten or indium tin oxide arbitrary.
Comprehensively above-mentioned, the present invention proposes a kind of display panels, utilizes the extension and the extension of corresponding data line or data line and corresponding pixel electrode of laser welding pixel electrode, connects to form the stepped layer of striding, the conductive characteristic of collocation pixel electrode, the signal path of reconstruct data line.
Above-described embodiment only is explanation technological thought of the present invention and characteristics, its purpose makes the personage who has the knack of this skill can understand content of the present invention and is implementing according to this, when can not with qualification claim of the present invention, promptly the equalization of doing according to disclosed spirit generally changes or modifies, and must be encompassed in the claim of the present invention.
Claims (12)
1. display panels is characterized in that comprising:
Most bar sweep traces and plurality of data lines, cross-over configuration is on a substrate;
A most thin film transistor (TFT) are disposed on the described substrate, and wherein each described thin film transistor (TFT) comprises a grid, one source pole and a drain electrode, described grid and one of them electric connection of described sweep trace, described source electrode and one of them electric connection of described data line;
Most pixel electrodes, one of them the described drain electrode electric connection of each described pixel electrode and described thin film transistor (TFT); And
One insulation course is disposed between described data line and the described pixel electrode, and wherein each described pixel electrode has at least one extension, and the described extension of part is arranged at the top of described data line.
2. display panels as claimed in claim 1 is characterized in that, also comprises most bar storage capacitors electrode wires, along described scan-line direction setting, and with described data line cross-over configuration.
3. display panels is characterized in that comprising:
One substrate;
Most bar sweep traces and plurality of data lines are disposed on the described substrate, and wherein said sweep trace and described data line define most pixel regions on described substrate;
A most thin film transistor (TFT) are disposed in the described pixel region;
A most pixel electrode are disposed in the described pixel region, and electrically connect with described thin film transistor (TFT), and wherein each described pixel electrode has at least one extension, and the described extension of part is arranged at the top of described data line;
One insulation course is disposed between described data line and the described pixel electrode; And
Repair pad for most, be disposed at described sweep trace upper strata, and each described repairing pad connects each adjacent described pixel electrode.
4. display panels as claimed in claim 3 is characterized in that, described repairing pad is a conductive material.
5. display panels as claimed in claim 4 is characterized in that described conductive material comprises chromium, tungsten or indium tin oxide.
6. display panels as claimed in claim 3 is characterized in that, also comprises most bar storage capacitors electrode wires, along described scan-line direction setting, and with described data line cross-over configuration.
7. display panels is characterized in that comprising:
Most bar sweep traces and plurality of data lines, cross-over configuration is on a substrate;
A most thin film transistor (TFT) are disposed on the described substrate, and wherein each described thin film transistor (TFT) comprises a grid, one source pole and a drain electrode, described grid and one of them electric connection of described sweep trace, described source electrode and one of them electric connection of described data line;
Most pixel electrodes, one of them the described drain electrode electric connection of each described pixel electrode and described thin film transistor (TFT); And
One insulation course is disposed between described data line and the described pixel electrode, and wherein each described data line has at least one extension, and the described extension of part is arranged on the described pixel electrode.
8. display panels as claimed in claim 7 is characterized in that, also comprises most bar storage capacitors electrode wires, and it is along described scan-line direction setting, and with described data line cross-over configuration.
9. display panels is characterized in that comprising:
One substrate;
Most bar sweep traces and plurality of data lines are disposed on the described substrate, and wherein said sweep trace and described data line define most pixel regions on described substrate;
A most thin film transistor (TFT) are disposed in the described pixel region;
Most pixel electrodes are disposed in the described pixel region and with described thin film transistor (TFT) and electrically connect, and wherein, each described data line has at least one extension, and the described extension of part is arranged on the described pixel electrode;
One insulation course is disposed between described data line and the described pixel electrode; And
Repair pad for most, be disposed at described sweep trace upper strata, and each described repairing pad connects each adjacent described pixel electrode.
10. display panels as claimed in claim 9 is characterized in that, described repairing pad is a conductive material.
11. display panels as claimed in claim 10 is characterized in that, described conductive material comprises chromium, tungsten or indium tin oxide.
12. display panels as claimed in claim 9 is characterized in that, also comprises most bar storage capacitors electrode wires, it is along described scan-line direction setting and across described pixel region, and with described data line cross-over configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710001886A CN100590503C (en) | 2007-02-05 | 2007-02-05 | Liquid crystal display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710001886A CN100590503C (en) | 2007-02-05 | 2007-02-05 | Liquid crystal display panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101241280A CN101241280A (en) | 2008-08-13 |
| CN100590503C true CN100590503C (en) | 2010-02-17 |
Family
ID=39932911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710001886A Expired - Fee Related CN100590503C (en) | 2007-02-05 | 2007-02-05 | Liquid crystal display panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100590503C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102891164B (en) * | 2011-07-19 | 2016-09-07 | 群创光电股份有限公司 | Organic electroluminescence display device |
| CN103984132B (en) * | 2014-05-31 | 2016-08-17 | 深圳市华星光电技术有限公司 | A kind of restorative procedure of array base palte line fault |
| CN111200004A (en) * | 2020-02-27 | 2020-05-26 | 深圳市华星光电半导体显示技术有限公司 | Pixel structure, preparation method thereof and display panel |
| CN111710301A (en) * | 2020-07-13 | 2020-09-25 | 京东方科技集团股份有限公司 | Display panel, preparation method and repair method thereof, and display device |
| CN114779545B (en) * | 2022-04-02 | 2023-10-17 | Tcl华星光电技术有限公司 | Display panel and dark spot repairing method thereof |
-
2007
- 2007-02-05 CN CN200710001886A patent/CN100590503C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101241280A (en) | 2008-08-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8921864B2 (en) | TFT-LCD array substrate and manufacturing method thereof | |
| CN107329296B (en) | Liquid crystal panel dark spot repairing method and array substrate structure | |
| CN204595382U (en) | Array base palte and display panels and device and repaired array base palte | |
| US10281752B2 (en) | Display device | |
| CN100580536C (en) | Array base plate for liquid-crystal display device and its production | |
| CN100438048C (en) | Electrode structure in flat panel display, and fabricating method | |
| CN105527736B (en) | A kind of array substrate and its restorative procedure, display panel and display device | |
| CN100590503C (en) | Liquid crystal display panel | |
| CN102495502B (en) | Liquid crystal display device and pixel repair method for same | |
| CN104730790B (en) | Liquid crystal display device, liquid crystal display and preparation method thereof and dim spot operational method | |
| US8754999B2 (en) | Liquid crystal display and method for repairing defective pixel | |
| CN105467706A (en) | Array substrate structure and array substrate broken line repairing method | |
| CN101114655A (en) | Film transistor array substrates and its producing method, repairing method | |
| CN102741913A (en) | Display device | |
| TW200918985A (en) | Display apparatus and repairing method thereof | |
| CN102289120B (en) | Thin film transistor (TFT) array substrate, liquid crystal display panel and method for repairing distributed lines | |
| CN104298035A (en) | Array substrate, method for repairing broken data line of array substrate and display device | |
| CN101082706B (en) | Liquid crystal display device | |
| US9897878B2 (en) | Thin film transistor array substrate, liquid crystal display panel and repair method of liquid crystal display panel | |
| CN108646476A (en) | A kind of broken wire repair method of liquid crystal display panel | |
| CN102798999A (en) | Array substrate cross curve repairing method, array substrate and liquid crystal display | |
| CN101581856A (en) | Repairing method of array substrate | |
| CN106405951B (en) | Display substrate, manufacturing method thereof, display device and maintenance method thereof | |
| CN107589603A (en) | Active matrix substrate and display device | |
| CN101576690A (en) | Liquid crystal display device and repairing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100217 Termination date: 20200205 |