CN101750810A - Repair structure of liquid crystal display - Google Patents
Repair structure of liquid crystal display Download PDFInfo
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- CN101750810A CN101750810A CN200810178073A CN200810178073A CN101750810A CN 101750810 A CN101750810 A CN 101750810A CN 200810178073 A CN200810178073 A CN 200810178073A CN 200810178073 A CN200810178073 A CN 200810178073A CN 101750810 A CN101750810 A CN 101750810A
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Abstract
The invention relates to a data line repair structure of a liquid crystal display, which comprises repair lines and floating lines. The repair lines and the first terminals of the data line are intersected, and the floating lines are connected with the second terminals of the data line and the repair lines in a floating way and are connected with the data line and the repair lines by welding; and when the data line has breakpoints, data signals can be written in pixel electrodes by the repair lines and the floating lines.
Description
Technical field
The present invention relates to a kind of data line repair structure of LCD, and be particularly related to a kind of data line repair structure with suspension joint line.
Background technology
In recent years, active LCD is widely used in products such as LCD screen and LCD TV, and towards large-sized trend development.Yet the large scale liquid crystal display needs the long circuit of length, and for example sweep trace and data line drive the thin film transistor (TFT) of each pixel cell.Therefore, in manufacture process, in main line, form one or more breakpoints easily.
Figure 1 shows that the data line repair structure of available liquid crystal display, display panels 100 comprises sweep trace 101 and data line 102, and data line 102 intersects with sweep trace 101.Grid drive chip 103 is engaged on the flexible substrate 104, to constitute the coil type encapsulating structure.One side of flexible substrate 104 connects display panels 100, and opposite side connects printed circuit board (PCB) 105.In the same manner, source driving chip 106 also is engaged on the flexible substrate 107, to constitute the coil type encapsulating structure.One side of flexible substrate 107 connects display panels 100, and opposite side connects printed circuit board (PCB) 108.Grid drive chip 103 produces gate drive signal, and by sweep trace 101 drive thin film transistors (not shown in figure 1)s, source driving chip 106 produces data-signal, and writes the pixel electrode (not shown in figure 1) by data line 102.
As shown in Figure 1, this data line repair structure comprises that first repairs line 109, it is parallel to sweep trace 101, and intersect with the end of data line 102 with respect to source driving chip 106, the second reparation line 110 extends to right-hand member from the left end of flexible substrate 107, and the data line 102 that is connected with source driving chip 106 intersects.When breakpoint 111 takes place data line 102, utilize for example the laser bonding first reparation line 109, second reparation line 110 and the data line 102, to form two tie point 112a and 112b.Because the first reparation line 109 and second is repaired line 110 and can be connected to each other by the circuit on printed circuit board (PCB) 105 and 108, therefore the data-signal of source driving chip 106 generations is repaired line 109 via second circuit of repairing on line 110, the printed circuit board (PCB) 108 and 105 and first successively, is sent to the segment data line that is positioned at breakpoint 111 tops.
Above-mentioned repair structure and restorative procedure utilize the circuit on X side and the Y side printed circuit board (PCB) to link first and repair the line and the second reparation line, yet, when display panels has glass flip chip structure or membrane of flip chip structure, also be that chip for driving is engaged in display panels, perhaps be engaged in flexible substrate and save the X side or Y side printed circuit board (PCB), then above-mentioned repair structure and restorative procedure are with inapplicable.
Summary of the invention
In view of this, the invention provides a kind of data line repair structure of display panels.Wherein said repair structure comprises repairs line and suspension joint line, and first end of repairing line and data line intersects, and the suspension joint line is connected data line and reparation line with second end of data line with reparation line suspension joint and by the welding incoming call.Wherein when data line had breakpoint, data-signal can write pixel electrode by repairing line and suspension joint line.
The present invention also provides a kind of data line repair structure of display panels, and repair structure comprises that first repairs line, second reparation line, the first suspension joint line and the second suspension joint line.First first end of repairing the line and first data line intersects, second first end of repairing the line and second data line intersects, second end of the first suspension joint line and first data line and first is repaired the line suspension joint, and be electrically connected first data line and described first by welding and repair line, second end of the second suspension joint line and second data line and second is repaired the line suspension joint, and be electrically connected second data line and second by welding and repair line, wherein when first data line and second data line respectively have breakpoint, first data-signal can write first pixel electrode by the first reparation line and the first suspension joint line, and second data-signal can write second pixel electrode by the second reparation line and the second suspension joint line.
Description of drawings
Figure 1 shows that the data line repair structure of available liquid crystal display;
Figure 2 shows that the layout of data line repair structure according to an embodiment of the invention;
Figure 3 shows that the data line repair structure of the display panels of one embodiment of the invention;
Figure 4 shows that the data line repair structure of display panels according to another embodiment of the present invention; And
Figure 5 shows that the data line repair structure of display panels according to another embodiment of the present invention.
[primary clustering symbol description]
101～sweep trace
102～data line
103～grid drive chip
104,107～flexible substrate
105,108～printed circuit board (PCB)
106～source driving chip
109～the first repair line
110～the second repair line
111～breakpoint
112a, 112b～tie point
200～data line repair structure
201,202,203,204～reparation line
211,212,213 and 214～breakpoint
301,401～liquid crystal panel
302～sweep trace
303,403,413～data line
305,405,406～source driving chip
307～printed circuit board (PCB)
308b, 408b, 408j～second are repaired line
308d～4th repairs line
310,410,420～breakpoint
313～connection gasket
321,421,431～suspension joint line
304,404,407～grid drive chip
306a, 306b, 306c～flexible substrate
308a, 408a, 408h～first are repaired line
308c, 408c, 408i～3rd repair line
408f, 408g～6th repairs line
408e～5th repairs line
409,419～transparency conducting layer
411,416～tie point
501a, 501b～first repaired line
502a, 502b～second repaired line
503a, 503b～3rd repairs line
504a, 504b～4th repairs line
550a, 550b～data line
511, L
2, L
4, L
6, L
N+1, L
N+3, L
N+5～long suspension joint line
512, S
1, S
3, S
5, S
N+2, S
N+4, S
N+6～short suspension joint line
D
1, D
2, D
3, D
4, D
5, D
6, D
n～data line
D
N+1, D
N+2, D
N+3, D
N+4, D
N+5, D
N+6, D
2n～data line
W
1, W
2, W
3, W
4, W
5, W
6, W
7, W
8～pad
Embodiment
For above-mentioned and other purpose of the present invention, feature and advantage can be become apparent, cited below particularlyly go out preferred embodiment, and in conjunction with the accompanying drawings, be described in detail below:
Figure 2 shows that the layout of data line repair structure 200 according to an embodiment of the invention, as shown in Figure 2, data line repair structure 200 comprises data line D
1, D
2, D
3, D
4, D
5, D
6～D
nAnd D
N+1, D
N+2, D
N+3, D
N+4, D
N+5, D
N+6～D
2n, repair line 201,202,203 and 204, short suspension joint line (short floating line) S
1, S
3, S
5S
2p-1And S
N+2, S
N+4, S
N+6S
2n, long suspension joint line (long floating line) L
2, L
4, L
6L
2PAnd L
N+1, L
N+3, L
N+5L
2n-1Its short-and-medium suspension joint line S
1, S
3, S
5S
2p-1And S
N+2, S
N+4, S
N+6S
2nAnd long suspension joint line L
2, L
4, L
6L
2PAnd L
N+1, L
N+3, L
N+5L
2n-1Get along well any data line or repair line and connect, only when data line has breakpoint, short suspension joint line or long suspension joint line just can be soldered to the reparation line 201,202,203 or 204 and corresponding data line D of correspondence
1, D
2, D
3, D
4, D
5, D
6～D
nAnd D
N+1, D
N+2, D
N+3, D
N+4, D
N+5, D
N+6～D
2n, make that repairing line can be sent to data-signal on the corresponding data line by the suspension joint line of correspondence.
According to one embodiment of the invention, data line D
3, D
6, D
N+3And D
N+4Breakpoint 211,212,213 and 214 is respectively arranged, short suspension joint line S
3Respectively by pad W
1And W
2With data line D
3And repair line 201 connections, make that repairing line 201 can pass through short suspension joint line S
3With data-signal from data line D
3First end (not shown) via repairing line 201 and short suspension joint line S
3Be sent to data line D
3Second end; Long suspension joint line L
6Respectively by pad W
3And W
4With data line D
6And repair line 202 connections, make that repairing line 202 can pass through long suspension joint line L
6With data-signal from data line D
6First end (not shown) via repairing line 202 and long suspension joint line L
6Be sent to data line D
6Second end.
In like manner, lack suspension joint line S
N+4Respectively by pad W
5And W
6With data line D
N+4And repair line 203 connections, make that repairing line 203 can pass through short suspension joint line S
N+4With data-signal from data line D
N+4First end (not shown) via repairing line 203 and short suspension joint line S
N+4Be sent to data line D
N+4Second end; Long suspension joint line L
N+3Respectively by pad W
7And W
8With data line D
N+3And repair line 204 connections, make that repairing line 204 can pass through long suspension joint line L
N+3With data-signal from data line D
N+3First end (not shown) via repairing line 204 and long suspension joint line L
N+3Be sent to data line D
N+3Second end.
Because short suspension joint line S
1, S
3, S
5S
2p-1And S
N+2, S
N+4, S
N+6S
2nAnd long suspension joint line L
2, L
4, L
6L
2PAnd L
N+1,
Ln+3, L
N+5L
2n-1It is suspension joint, have only the weak point of corresponding breakpoint or long suspension joint line just can be connected with corresponding reparation line with corresponding data line, and it is not staggered with data line to repair line 201,202,203 and 204, therefore the effect of the RC delay between data line and the reparation line can significantly reduce, thereby avoids signal waveform to become triangular wave from square wave originally.
Figure 3 shows that the data line repair structure 300 of the display panels of one embodiment of the invention, display panels 301 (for example glass substrate), comprise sweep trace 302 and data line 303, data line 303 intersects with sweep trace 302, and thin film transistor (TFT) (not shown among Fig. 3) is formed at sweep trace 302 and data line 303 intersections.Described thin film transistor (TFT) has the grid that is connected with sweep trace 302, the source electrode that is connected with data line 303, and the drain electrode that is connected with pixel electrode (not shown among Fig. 3).Grid drive chip 304 is engaged on the flexible substrate 306a, form membrane of flip chip (chip-on-film, COF) structure, and flexible substrate 306a engages with display panels 301, and utilize sweep trace 302 to transmit signals to drive described thin film transistor (TFT).Source driving chip 305 is engaged on the flexible substrate 306c, and also i.e. formation band year encapsulation (tape carrier package, TCP) structure, and utilize data line 303 data signal to write described pixel electrode.The side of flexible substrate 306c engages with display panels 301, and opposite side engages with printed circuit board (PCB) 307.In addition, include many circuits such as power lead, ground wire on the printed circuit board (PCB) 307.
Each of data repair structure repaired line can include one or more respectively, therefore when many data line generation breakpoints are arranged on the display panels simultaneously, promptly can utilize corresponding reparation line to repair respectively, illustrates with following two embodiment respectively.
Figure 4 shows that the data line repair structure of display panels according to another embodiment of the present invention, source driving chip 405 also utilizes conducting resinl to be engaged in X side outer peripheral areas on the display panels 401, also promptly form glass flip chip structure (chip-on-glass, COG), therefore the data line repair structure comprises that the 5th repairs line 408e, it is parallel to sweep trace 402 and is electrically connected with source driving chip 405, and the 4th repair line 408f, it is formed at the oblique distribution zone on the display panels 401, to be electrically connected the internal wiring of the first reparation line 408a and source driving chip 405.In addition, the 4th reparation line 408f and first repairs between the line 408a and has transparency conducting layer 409.
As shown in Figure 4, when data line 403 has breakpoint 410, utilize LASER BEAM WELDING first reparation line 408a and data line 403 to form tie point 411, welding suspension joint line 421 is repaired line 408c and data line 403 to connect the 3rd, and welding transparency conducting layer 409 is repaired line 408a and the 4th reparation line 408f to connect first.Therefore, the data-signal that source driving chip 405 produces can be repaired line 408e, second and repair the internal wiring of line 408b and grid drive chip 404 via the first reparation line 408a, the 4th internal wiring, the 5th of repairing line 408f, source driving chip 405 successively, is sent to the segment data line of breakpoint 410 belows at last via the 3rd reparation line 408c and suspension joint line 421.
In like manner, source driving chip 406 also utilizes conducting resinl to be engaged on the display panels 401, and the 4th reparation line 408g is formed at the oblique distribution zone on the display panels 401, to be electrically connected the internal wiring of the first reparation line 408h and source driving chip 405.In addition, the first reparation line 408h and the 4th repairs between the line 408g and has transparency conducting layer 419.
When data line 413 has breakpoint 420, utilize LASER BEAM WELDING first reparation line 408h and data line 413 to form tie point 416, welding suspension joint line 431 is repaired line 408i and data line 413 to connect the 3rd, and welding transparency conducting layer 419 is repaired line 408h and the 4th reparation line 408g to connect first.Therefore, the data-signal that source driving chip 406 produces can be repaired line 408e, second and repair the internal wiring of line 408j and grid drive chip 407 via the first reparation line 408h, the 4th internal wiring, the 5th of repairing line 408g, source driving chip 406 successively, is sent to the segment data line of breakpoint 420 belows at last via the 3rd reparation line 408i and suspension joint line 431.
Figure 5 shows that the data line repair structure of display panels according to another embodiment of the present invention, the first reparation line 501a and 501b weld with odd number bar data line 550a and even number bar data line 550b respectively.Long suspension joint line 511 and the 3rd is repaired line 503a and odd number bar data line 550a welding, short suspension joint line 512 and the 3rd is repaired line 503b and even number bar data line 550b welding, therefore when breakpoint takes place odd number bar data line 550a, can utilize the first reparation line 501a, the 4th reparation line 504a, second to repair line 502a and the 3rd and repair line 503a data signal.When breakpoint takes place even number bar data line 550b, can utilize first to repair line 501b, the 4th reparation line 504b, the second reparation line 502b and the 3rd reparation line 503b data signal.
Repair structure of the present invention utilizes specific suspension joint line and corresponding data line to be connected with corresponding reparation line, other suspension joint line is a suspension joint, and it is not staggered with data line to repair line, therefore data line can significantly reduce with the effect that the RC that repairs between the line postpones, with and avoid signal waveform to become triangular wave from the square wave of script.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limiting scope of the present invention, those skilled in the art, without departing from the spirit and scope of the present invention; can make various modifications and variations, so protection scope of the present invention should be as the criterion with the scope of appended claims.
Claims (18)
1. the data line repair structure of a display panels, the data line that described display panels comprises sweep trace, intersect with described sweep trace, be formed at described sweep trace and the intersection of described data line and the thin film transistor (TFT) that is electrically connected with pixel electrode, be electrically connected grid drive chip with described sweep trace with the signal of the described thin film transistor (TFT) of generation driving, and be electrically connected the source driving chip that writes the data-signal of described pixel electrode with generation with described data line, described repair structure comprises:
Repair line, first end that extends back and described data line intersects; And
The suspension joint line with second end and the described reparation line suspension joint of described data line, and is electrically connected described data line and described reparation line by welding,
Wherein when described data line had breakpoint, described data-signal can write described pixel electrode by described reparation line and described suspension joint line.
2. repair structure according to claim 1, the distance that has vertical direction between second end of wherein said reparation line and described data line is to avoid with other data line the capacitance delays that has a resistance after overlapping.
3. repair structure according to claim 1, wherein said grid drive chip is engaged on the described display panels.
4. repair structure according to claim 1, wherein said source driving chip is engaged on the described display panels.
5. repair structure according to claim 1, first end of wherein said data line is near an end of described source driving chip, and second end of described data line is away from an end of described source driving chip.
6. the data line repair structure of a display panels, described repair structure comprises:
First repairs line, and first end that extends the back and first data line intersects;
Second repairs line, and first end that extends the back and second data line intersects;
The first suspension joint line is repaired the line suspension joint with second end and described first of described first data line, and is electrically connected described first data line and the described first reparation line by welding; And
The second suspension joint line is repaired the line suspension joint with second end of described second data line and described second, and is electrically connected described second data line and described second by welding and repairs line, and the described second suspension joint line also repairs the line suspension joint with described first,
Wherein when described first data line and described second data line respectively have breakpoint, first data-signal can write first pixel electrode by described first reparation line and the described first suspension joint line, and second data-signal can write second pixel electrode by described second reparation line and the described second suspension joint line.
7. the data line repair structure of a display panels, the data line that described display panels comprises sweep trace, intersect with described sweep trace, be formed at described sweep trace and described data line intersection and the thin film transistor (TFT) that is electrically connected with pixel electrode, be electrically connected grid drive chip with described sweep trace with the signal of the described thin film transistor (TFT) of generation driving, and be electrically connected the source driving chip that writes the data-signal of described pixel electrode with generation with described data line, described repair structure comprises:
First repairs line, parallel with described sweep trace, and crossing with first end of described data line;
Second repairs line, parallel with described data line, and is electrically connected described grid drive chip;
The 3rd repairs line, parallel with described sweep trace, and is electrically connected the described second reparation line; And
The suspension joint line is repaired the line suspension joint with described data line and the described the 3rd, and is electrically connected described data line and described the 3rd reparation line by welding,
Wherein when described data line had breakpoint, described source driving chip can be repaired line, the described second reparation line, described the 3rd reparation line and described suspension joint line by described first described data-signal is write described pixel electrode.
8. repair structure according to claim 7, the wherein said the 3rd repairs the distance that line and the end of arbitrary data line have vertical direction, to avoid forming the resistance capacitance delay with arbitrary data line because of overlapping.
9. repair structure according to claim 7, wherein said grid drive chip is engaged on the described display panels.
10. repair structure according to claim 7, wherein said grid drive chip is engaged on the flexible substrate, and the described second reparation line utilizes the circuit on the described flexible substrate to be electrically connected with described grid drive chip.
11. repair structure according to claim 7 comprises that also the 4th repairs line, it is formed at the oblique distribution zone on the described display panels, and is connected with described first line electricity of repairing on line and the printed circuit board (PCB).
12. repair structure according to claim 11, the wherein said the 4th repairs line is connected with line electricity on the described printed circuit board (PCB) via flexible substrate, and described source driving chip is engaged on the described flexible substrate.
13. repair structure according to claim 11, wherein said the 4th reparation line and described first is repaired between the line and is comprised transparency conducting layer.
14. repair structure according to claim 7 comprises that also the 5th repairs line, it is parallel with described sweep trace, and described the 5th reparation line connects described source driving chip.
15. repair structure according to claim 14, wherein said source driving chip is engaged on the described display panels.
16. repair structure according to claim 14 comprises that also the 6th repairs line, it is formed at the oblique distribution zone on the described substrate, and is electrically connected with described first reparation line and described the 5th reparation line.
17. repair structure according to claim 16, wherein said the 6th reparation line and described first is repaired between the line and is comprised transparency conducting layer.
18. repair structure according to claim 7, first end of wherein said data line is near an end of described source driving chip, and second end of described data line is away from an end of described source driving chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810178073A CN101750810A (en) | 2008-12-19 | 2008-12-19 | Repair structure of liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810178073A CN101750810A (en) | 2008-12-19 | 2008-12-19 | Repair structure of liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101750810A true CN101750810A (en) | 2010-06-23 |
Family
ID=42477976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810178073A Pending CN101750810A (en) | 2008-12-19 | 2008-12-19 | Repair structure of liquid crystal display |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013078721A1 (en) * | 2011-12-02 | 2013-06-06 | 深圳市华星光电技术有限公司 | Liquid crystal display device and method for repairing disconnected lines |
| CN105654886A (en) * | 2016-01-25 | 2016-06-08 | 重庆京东方光电科技有限公司 | Grid drive circuit, repairing method thereof and display device |
| CN106200192A (en) * | 2015-04-29 | 2016-12-07 | 元太科技工业股份有限公司 | Display device of electronic paper |
| CN107808634A (en) * | 2017-11-30 | 2018-03-16 | 武汉天马微电子有限公司 | A kind of display panel and display device |
| WO2018072437A1 (en) * | 2016-10-20 | 2018-04-26 | 京东方科技集团股份有限公司 | Repair circuit and repair method for display substrate, display substrate, and display device |
| US10475398B2 (en) | 2015-04-29 | 2019-11-12 | E Ink Holdings Inc. | Display device and manufacturing method thereof |
-
2008
- 2008-12-19 CN CN200810178073A patent/CN101750810A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013078721A1 (en) * | 2011-12-02 | 2013-06-06 | 深圳市华星光电技术有限公司 | Liquid crystal display device and method for repairing disconnected lines |
| CN106200192A (en) * | 2015-04-29 | 2016-12-07 | 元太科技工业股份有限公司 | Display device of electronic paper |
| US10475398B2 (en) | 2015-04-29 | 2019-11-12 | E Ink Holdings Inc. | Display device and manufacturing method thereof |
| CN105654886A (en) * | 2016-01-25 | 2016-06-08 | 重庆京东方光电科技有限公司 | Grid drive circuit, repairing method thereof and display device |
| WO2018072437A1 (en) * | 2016-10-20 | 2018-04-26 | 京东方科技集团股份有限公司 | Repair circuit and repair method for display substrate, display substrate, and display device |
| CN107808634A (en) * | 2017-11-30 | 2018-03-16 | 武汉天马微电子有限公司 | A kind of display panel and display device |
| CN107808634B (en) * | 2017-11-30 | 2020-03-10 | 武汉天马微电子有限公司 | Display panel and display device |
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Application publication date: 20100623 |