CN1967364A - LCD device capable of reducing signal delay and repairing method of broken data wire - Google Patents
LCD device capable of reducing signal delay and repairing method of broken data wire Download PDFInfo
- Publication number
- CN1967364A CN1967364A CN 200610117908 CN200610117908A CN1967364A CN 1967364 A CN1967364 A CN 1967364A CN 200610117908 CN200610117908 CN 200610117908 CN 200610117908 A CN200610117908 A CN 200610117908A CN 1967364 A CN1967364 A CN 1967364A
- Authority
- CN
- China
- Prior art keywords
- line
- reparation
- data line
- boost
- boost line
- 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.)
- Pending
Links
Images
Landscapes
- Liquid Crystal (AREA)
Abstract
The invention discloses a LCD display device which can lower signal delay and method of mending broken data lines. The device includes a number of gate lines and a number of data lines. The crossing data lines and gate lines form pixel display area. In the external of above pixel display area, there is a plastic sealed box region, and the wiring outside the plastic sealed box region. LCDs which can mend broken data line also include a number of auxiliary lines across with the above data line. Repair auxiliary lines are installed in the plastic sealed box area. Because there is no liquid crystal outside the plastic sealed box region, the capacitance between the department wiring and the common membrane electrode layer of the color film substrate is almost zero. That effectively solves the signal delays caused by coupling capacitance between wiring and color film substrate.
Description
Technical field
The present invention relates to a kind of liquid crystal indicator and restorative procedure, particularly relate to a kind of liquid crystal indicator of signal delay and restorative procedure of broken data wire of reducing.
Background technology
(liquid crystal display is a kind of flat-panel screens that is widely used most at present LCD) to LCD, has low-power consumption, external form is thin, in light weight and advantage such as low driving voltage.Generally speaking, LCD includes array infrabasal plate, color film upper substrate and is filled in liquid crystal layer between the upper and lower base plate; The viewing area of LCD comprises a plurality of subpixel area, each subpixel area is generally two gate line (gate line, claim sweep trace again) intersect formed rectangle or other shape area with two data lines (data line), be provided with thin film transistor (TFT) (TFT) and pixel electrode in it, thin film transistor (TFT) serves as on-off element.Along with the increase of display panels size and the raising of resolution, the signal delay (RCDelay) of the distribution of LCD (sweep trace, gate line, boost line etc.) also can increase thereupon, and resistance, C refer to the electric capacity that forms between electric capacity between this layer distribution and other conductive layer of array base palte and the common electrode on this layer distribution and the color membrane substrates on the R assignment line among the RC Delay.And excessive RC Delay can influence the brightness, contrast of LCD etc., thereby reduces display quality.
Gate line and data line are mainly used to provide signal of video signal to drive pixel electrode, the influence of manufacturing process such as film forming, little shadow, etching in the time of still owing to making, and gate line and data line break easily, cause line defect.And when LCD panel enlarged areas, when resolution improved, because the restriction of factors such as aperture opening ratio, gate line and data line live width narrowed down, easier generation broken string phenomenon.In addition, because length breadth ratio, data line generally designs narrowlyer than gate line, the easier broken string.Therefore, for avoiding the production of LCD panel, need repair the particularly the most incidental broken data wire defective of disconnection defect owing to the yield that disconnection defect causes descends.
The existing data lines recovery technique mainly contains both direction, the one, walk ring winding, by the other end (with driving voltage input end relative) the input corresponding data-signal of coiling from the data line of broken string, make the data line top and the bottom of broken string can keep same signal, improve defective even eliminate defective; The one, configuration reparation is used backup wirings in each pixel, the broken string back takes place by backup wirings the two ends of broken string are coupled together.
At first kind of recovery technique, Chinese patent CN1527268A and Japanese publication spy open the restorative procedure that flat 8-171081 discloses several annular cablings.Be illustrated in figure 1 as the top view of one of existing repair data line broken string method.Gate line 12 and terminal 14 thereof are set on the crystal liquid substrate 10, data line 16 and terminal 18 thereof, repair with boost line 24A, 24B, 24C the viewing area 20 that pixel 22 is formed, and every boost line is all crossed over and around data line 16 two ends.For instance, when broken string takes place at opening A place in data line 16A, can utilize laser technology, point of crossing 26a, the 26b generation of one of data line 16A and boost line (such as 24A) is electrically connected, and the shortest path that foundation is selected cuts off boost line 24A at point of contact 28a, 28b, like this, the signal that is sent to data line 16A the latter half can be provided by boost line 24A, thereby has repaired disconnection defect.In addition, also have boost line to carry out the cabling distribution, so that disconnection defect is repaired by printed-wiring board (PWB) (PWB).This recovery technique major defect is that the signal delay that causes therefrom often be can not ignore, and causes the repairing effect variation even does not reach the purpose of reparation fully because boost line length is bigger.Especially for the panel of COG structure, because the boost line cabling is all on panel, therefore the signal delay that causes is bigger, and is more remarkable for the influence of repairing effect.
At second kind of recovery technique, Chinese publication CN1527268A and Chinese publication CN1716068A disclose several restorative procedures.Specifically, as shown in Figure 2, by be disposed at the other shading metal wire 32 of data line 50 and across the spare repairing lead 38 of data line 50/ shading metal wire 32 as patch cord, if have the many places broken string in same the data line, all can select suitable shading metal wire 32 and spare repairing lead 38 nearby, by the lf technology, make data line walk around the broken string place.But, this recovery technique be for often can't repairing at the broken string of data line 50 and gate line 40 infalls, therefore is not restorative procedure completely.
Summary of the invention
The technical matters that the present invention solves is that a kind of electric capacity between distribution and the color membrane substrates common electrode, liquid crystal indicator of reduction distribution signal delay of reducing will be provided.
Another technical matters that will solve of the present invention is that a kind of restorative procedure that can repair, reduce simultaneously signal delay that boost line causes in different broken data wire positions, improve repairing effect will be provided.
The invention provides a kind of liquid crystal indicator that reduces signal delay, comprise many gate lines and many data lines, the pixel display area territory that gate line and data line intersect to form; The envelope frame glue zone that forms in the periphery in above-mentioned pixel display area territory; And be arranged on distribution outside the envelope frame glue zone.
Above-mentioned liquid crystal indicator also comprise many with above-mentioned data line reparation boost line arranged in a crossed manner, wherein said reparation distributes with boost line and is arranged on outside the envelope frame glue zone.
The present invention also provides a kind of restorative procedure of broken data wire, but wherein the LCD of repair data line disconnection defect comprises: many gate lines and many data lines, the pixel display area territory that gate line and data line intersect to form; The envelope frame glue zone that forms in the periphery in above-mentioned pixel display area territory; Many with above-mentioned data line reparation boost line arranged in a crossed manner; Reparation distributes with boost line and is arranged on outside the envelope frame glue zone; Described restorative procedure comprises: when defective takes place one of described data line, carry out welding with the crossover sites of boost line by laser radiation with reparation at these data line two ends, the data line two ends are connected with boost line with reparation; Simultaneously, make the two ends of defective data line form the annular connection by control circuit repairing output terminal with boost line by the laser radiation welding.
Based on above-mentioned design, the liquid crystal indicator that reduces signal delay of the present invention, because will part be arranged on the distribution that stretches out of distribution in the envelope frame glue zone originally is arranged on and seals outside the frame glue zone, and seal outside the frame glue zone owing to there is not liquid crystal to exist, electric capacity between the common electrode layer of this place's distribution and color membrane substrates is zero substantially, efficiently solves because the signal delay problem that these distributions and color film side group plate formation coupling capacitance cause.Equally, the restorative procedure of broken data wire of the present invention, because repairing with boost line has most distribution to be arranged on outside the envelope frame glue zone, repairing with the electric capacity between the common electrode layer of boost line and color membrane substrates is zero substantially, effectively reduced owing to repair the signal delay that causes with boost line, when defective appears in data line, carry out data line and the welding of repairing from these data line two ends by laser aid with boost line, can realize the reparation of defective, and guarantee that lower repair signal postpones, and guarantees normal display effect.
In order further to understand feature of the present invention and technology contents, see also following about detailed description of the present invention and accompanying drawing.Yet accompanying drawing is only for reference and aid illustration usefulness, is not construed as limiting the invention.
Description of drawings
Fig. 1 is the top view of the broken data wire repair structure of available liquid crystal display device;
Fig. 2 is the top view of the repair structure of available liquid crystal display device;
Fig. 3 is the top view of liquid crystal indicator of the present invention, and the frame of broken lines zone is the configuring area of existing distribution among the figure;
Fig. 4 is the top view of the repair structure of the embodiment of the invention, and dotted portion is existing trace configurations of repairing line among the figure;
Fig. 5 is the top view of the repair structure of the embodiment of the invention.
Description of symbols among the figure:
Prior art:
10, substrate 12. gate lines 14. terminals 16. data lines
16A. data line 18. terminals 20. viewing areas 22. pixels
24A, 24B, 24C. boost line 26a, 26b. point of crossing
28a, 28b. point of contact 32,32a, 32b. shading metal wire
34. thin film transistor (TFT) 38. spare repairing lead (projection) 38a, 38b. lead
341. grid 342. drain electrodes 343. source electrodes
40. gate line 46. contact holes 50. data lines
The present invention:
60. substrate 61. gate lines (sweep trace) 62. data lines
63. pixel display area territory 64. envelope frame glue zone 65. distributions
66. thin film transistor (TFT) (TFT)
62a. repairing, data line 65a, 65b. use boost line
621. input terminal 622. terminal parts 623. signal efferents
624. break point 625. output terminals
67a, 67b, 67c. welding point
Embodiment
The invention will be further described below in conjunction with accompanying drawing and exemplary embodiments.
Fig. 3 is the top view of liquid crystal indicator of the present invention.
With reference to Fig. 3, can reduce the liquid crystal indicator of signal delay, substrate 60 is provided with many gate lines 61 and many data 62 lines, the pixel display area territory 63 that gate line 61 and data line 62 intersect to form, be provided with thin film transistor (TFT) 66 in the pixel display area territory 63, the periphery in pixel display area territory 63 is formed with envelope frame glue zone 64, distribution 65 is arranged on outside the envelope frame glue zone 64, distribution 65 can be the boost line that gate line, data line etc. or difference in functionality use, as repair and use boost line, postpone with the RC that reduces those distributions.
Fig. 4, Fig. 5 are the top views of the repair structure of the embodiment of the invention.
With reference to Fig. 4, serve as that to repair with boost line be example with distribution 65, liquid crystal indicator of the present invention, be provided with many with data line 62 reparation usefulness boost line 65a and 65b arranged in a crossed manner; Part is repaired with boost line 65a, 65b distribution and is arranged on outside the envelope frame glue zone 64; Repair and use boost line 65a, the upside of every boost line of 65b carries out trace configurations through printed-wiring board (PWB) (PWB), be connected with the input terminal 621 of data line 62 by signal efferent 623, downside is connected with the terminal part 622 of data line 62, the center section parallel with data line 62 is stretched to the outside in envelope frame glue zone 64 and carries out cabling, repairs and uses boost line 65a, the input terminal 621 of 65b and data line 62, crossover sites 67a and 67b that terminal part 622 forms, repairing with the reparation on boost line output terminal 625 and the printed-wiring board (PWB) is the welding point with boost line line circuit crossover sites 67c.
With reference to Fig. 5, the boost line of data line terminal part 622 downsides partly is stretched to the outside in envelope frame glue zone 64, simultaneously downward extension data line 62, making welding point 67b stride across public electrode CS line extends to outside envelope frame glue 64 zones, can effectively avoid the influence of liquid crystal capacitance, reduce and repair line RC delay, improve remediation efficiency.
The liquid crystal indicator of said structure, when described data line 62a when disconnection defects take place in break point 624, two ends at this data line 62a are that welding point 67a, 67b carry out welding by laser radiation with the crossover sites of repairing with boost line 65a, and data line 62a two ends are connected with boost line 65a with reparation; Simultaneously, make the two ends of the data line 62a of disconnection defect form the annular connection by control circuit repairing output terminal 67c with boost line 65a by the laser radiation welding.
For effect of the present invention better is described, at the comparison of repairing among Fig. 4, provide example calculations below with boost line 65a configuration mode in frame of broken lines in configuration mode of the present invention and prior art:
Table 1: calculate and use example parameter
| The M1 metal thickness | 0.3 | μm |
| M1 metallic resistance rate | 6 | μΩ*cm |
| Thickness of insulating layer | 0.3 | μm |
| The insulation course specific inductive capacity | 7 | - |
| A-Si thickness | 0.2 | μm |
| The a-Si specific inductive capacity | 12 | - |
| The liquid crystal specific inductive capacity | 8 | - |
| Dotted portion is repaired line length | 280000 | μm |
| Dotted portion is repaired live width | 100 | μm |
Table 2: the result relatively
| Liquid crystal indicator of the present invention | Existing liquid crystal indicator | |
| R com | 472.4Ω | 472.4Ω |
| C com | 64.4pF | 422.4pF |
| Time delay | 0.030μs | 0.199μs |
As seen, in this example, about the restorative procedure little 0.2 μ s of signal delay of the present invention than prior art, along with panel size increases, the increase of distribution length, both differences will be more remarkable.Therefore, repair with the boost line cabling outside this envelope frame glue zone, very big effect is arranged for reducing signal delay.
Claims (9)
1. the liquid crystal indicator that can reduce signal delay comprises
Many gate lines and many data lines, the pixel display area territory that gate line and data line intersect to form;
The envelope frame glue zone that forms in the periphery in above-mentioned pixel display area territory; And
Be arranged on the distribution outside the envelope frame glue zone.
2. liquid crystal indicator according to claim 1, it is characterized in that also comprising many with data line reparation boost line arranged in a crossed manner, described reparation is arranged on outside the envelope frame glue zone with boost line.
3. liquid crystal indicator according to claim 2, input terminal one side that it is characterized in that described data line is connected with the signal efferent, efferent is connected with boost line with the reparation of its upside, and the terminal part of data line is connected with boost line with the reparation of its downside.
4. liquid crystal indicator according to claim 3 is characterized in that the reparation of described data line input terminal one side is passed through printed-wiring board (PWB) with boost line.
5. according to claim 3 or 4 described liquid crystal indicators, it is characterized in that described reparation is welding point with the reparation on boost line output terminal and the printed-wiring board (PWB) with boost line circuit crossover sites with the portion of terminal of boost line and data line or crossover sites, the reparation of terminal part formation.
6. but the restorative procedure of the liquid crystal indicator of repair data line broken string, but wherein the liquid crystal indicator of repair data line broken string comprises: many gate lines and many data lines, the pixel display area territory that gate line and data line intersect to form; The envelope frame glue zone that forms in the periphery in above-mentioned pixel display area territory; Many with above-mentioned data line reparation boost line arranged in a crossed manner; Reparation distributes with boost line and is arranged on outside the envelope frame glue zone; Described restorative procedure comprises: when broken string takes place one of described data line, carry out welding with the crossover sites of boost line by laser radiation with reparation at these data line two ends, the data line two ends are connected with boost line with reparation; Simultaneously, make the two ends of defective data line form the annular connection by control circuit repairing output terminal with boost line by the laser radiation welding.
7. restorative procedure according to claim 6, input terminal one side that it is characterized in that described data line is connected with the signal efferent, efferent is connected with boost line with the reparation of its upside, and the terminal part of data line is connected with boost line with the reparation of its downside.
8. restorative procedure according to claim 7 is characterized in that the reparation of described data line input terminal one side is passed through printed-wiring board (PWB) with boost line.
9. restorative procedure according to claim 6 is characterized in that described reparation is welding point with the reparation on boost line output terminal and the printed-wiring board (PWB) with boost line circuit crossover sites with the portion of terminal of boost line and data line or crossover sites, the reparation of terminal part formation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610117908 CN1967364A (en) | 2006-11-02 | 2006-11-02 | LCD device capable of reducing signal delay and repairing method of broken data wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610117908 CN1967364A (en) | 2006-11-02 | 2006-11-02 | LCD device capable of reducing signal delay and repairing method of broken data wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1967364A true CN1967364A (en) | 2007-05-23 |
Family
ID=38076199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610117908 Pending CN1967364A (en) | 2006-11-02 | 2006-11-02 | LCD device capable of reducing signal delay and repairing method of broken data wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1967364A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101630073B (en) * | 2008-07-18 | 2011-08-17 | 群康科技(深圳)有限公司 | Liquid crystal display device |
| CN102326192A (en) * | 2009-02-26 | 2012-01-18 | 株式会社理光 | Display device and method of repairing display device |
| CN101334536B (en) * | 2007-06-28 | 2012-01-25 | 上海中航光电子有限公司 | Array substrate retain wire structure and method of manufacture |
| CN102929050A (en) * | 2012-10-31 | 2013-02-13 | 合肥京东方光电科技有限公司 | Array substrate, panel and display device |
| CN109061974A (en) * | 2018-09-13 | 2018-12-21 | 惠科股份有限公司 | Liquid crystal display panel and liquid crystal display device |
| CN110955071A (en) * | 2018-11-26 | 2020-04-03 | 友达光电股份有限公司 | Display panel |
| US10859884B2 (en) | 2018-09-13 | 2020-12-08 | HKC Corporation Limited | Liquid crystal display panel and liquid crystal display apparatus |
-
2006
- 2006-11-02 CN CN 200610117908 patent/CN1967364A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101334536B (en) * | 2007-06-28 | 2012-01-25 | 上海中航光电子有限公司 | Array substrate retain wire structure and method of manufacture |
| CN101630073B (en) * | 2008-07-18 | 2011-08-17 | 群康科技(深圳)有限公司 | Liquid crystal display device |
| CN102326192A (en) * | 2009-02-26 | 2012-01-18 | 株式会社理光 | Display device and method of repairing display device |
| CN102326192B (en) * | 2009-02-26 | 2014-06-11 | 株式会社理光 | Display device and method of repairing display device |
| CN102929050A (en) * | 2012-10-31 | 2013-02-13 | 合肥京东方光电科技有限公司 | Array substrate, panel and display device |
| CN102929050B (en) * | 2012-10-31 | 2015-12-02 | 合肥京东方光电科技有限公司 | Array base palte, panel and display device |
| US9268186B2 (en) | 2012-10-31 | 2016-02-23 | Hefei Boe Optoelectronics Technology Co., Ltd. | Array substrate, display panel and display device |
| CN109061974A (en) * | 2018-09-13 | 2018-12-21 | 惠科股份有限公司 | Liquid crystal display panel and liquid crystal display device |
| WO2020051988A1 (en) * | 2018-09-13 | 2020-03-19 | 惠科股份有限公司 | Liquid crystal display panel and liquid crystal display device |
| US10859884B2 (en) | 2018-09-13 | 2020-12-08 | HKC Corporation Limited | Liquid crystal display panel and liquid crystal display apparatus |
| CN110955071A (en) * | 2018-11-26 | 2020-04-03 | 友达光电股份有限公司 | Display panel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8330886B2 (en) | Thin film transistor array substrate and repair method thereof | |
| KR101153528B1 (en) | Active matrix substrate, display device and television receiver | |
| CN1236352C (en) | LCD panel and method for making same | |
| CN201000518Y (en) | LCD device capable of reducing signal delay of repair line | |
| CN100481156C (en) | Active matrix substrate and fabricating method thereof, display device, liquid crystal display device, and television device | |
| KR100808747B1 (en) | Active matrix substrate, display device, and pixel defect correcting method | |
| CN1967364A (en) | LCD device capable of reducing signal delay and repairing method of broken data wire | |
| KR100469342B1 (en) | Liquid Crystal Display Device | |
| CN201886234U (en) | Liquid crystal display base plate and liquid crystal display (LCD) | |
| CN101059636A (en) | Liquid crystal display device | |
| CN1356680A (en) | Method for darkening pixels | |
| CN101359108A (en) | LCD display panel structure for thin film transistor | |
| CN101504500A (en) | Image element structure of thin-film transistor LCD array substrates | |
| CN101114655A (en) | Film transistor array substrates and its producing method, repairing method | |
| CN100480785C (en) | Liquid crystal display board capable of mending defect of data-wire and mending method | |
| CN1773357A (en) | Thin-film transistor array panel with improved connection to test lines | |
| US7053977B2 (en) | Laser repair structure of liquid crystal display device and method thereof | |
| CN103296056A (en) | Organic light emitting diode display device and method of manufacturing the same | |
| CN101819986B (en) | Electro-optical device and electronic apparatus | |
| CN100593750C (en) | Liquid crystal display device and array substrate rehabilitation method | |
| CN1318908C (en) | Thin film transistor array | |
| CN105572989B (en) | Tft array substrate, liquid crystal display panel and its restorative procedure | |
| CN1743934A (en) | Active device matrix substrate and repair method thereof | |
| CN101038383A (en) | Liquid crystal display device capable of reducing distribution signal delay and manufacturing method thereof | |
| CN101788739A (en) | Display panel maintenance method and display panel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |