CN101038376A - Mending structure of LCD and mending method thererof - Google Patents
Mending structure of LCD and mending method thererof Download PDFInfo
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- CN101038376A CN101038376A CN 200610059489 CN200610059489A CN101038376A CN 101038376 A CN101038376 A CN 101038376A CN 200610059489 CN200610059489 CN 200610059489 CN 200610059489 A CN200610059489 A CN 200610059489A CN 101038376 A CN101038376 A CN 101038376A
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Abstract
The invention relates to the data line patch structure of a liquid crystal display panel, including: the first patch line in parallel with the scan line and intersected with the first end of the data line; the second patch line in parallel with this data line and connected with the gate drive chip; and the third patch line in parallel with this scan line and intersected with the second end of this data line. When this data line has the breakpoints, the drive chip of this source gate may write the data signal into the pixel electrode through the first patch line, the second patch line and the third patch line.
Description
Technical field
The present invention relates to a kind of data line patch structure and method for repairing and mending of LCD, particularly relate to a kind of glass flip chip (chip-on-glass that is applied to, COG) structure or membrane of flip chip (chip-on-film, COF) data line patch structure of structure and method for repairing and mending.
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 this main line, form one or more breakpoint easily.
Fig. 1 shows the data line patch structure of known LCD, and display panels 100 includes sweep trace 101, and the data line 102 that intersects with sweep trace 101.Grid drive chip 103 is engaged on the flexible base plate 104, to constitute the coil type encapsulating structure.One side of flexible base plate 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 base plate 107, to constitute the coil type encapsulating structure.One of flexible base plate 107 is to connect display panels 100, and opposite side connects printed circuit board (PCB) 108.Grid drive chip 103 produces a gate drive signal, and by sweep trace 101 drive thin film transistors (not being shown among Fig. 1), source driving chip 106 produces a data-signal, and writes a pixel electrode (not being shown among Fig. 1) by data line 102.
As shown in Figure 1, this data line patch structure comprises: first patch cord 109, and it is parallel to sweep trace 101, and intersects with the end of data line 102 with respect to source driving chip 106; Second patch cord 110, its left end from flexible base plate 107 extends to right-hand member, 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 laser welding first patch cord 109, second patch cord 110 and data line 102, to form two tie point 112a and 112b.Because first patch cord 109 and second patch cord 110 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 in regular turn via the circuit on second patch cord 110, the printed circuit board (PCB) 108 and 105 and first patch cord 109, to be sent to the segment data line that is positioned at breakpoint 111 tops.
Above-mentioned preparing structure and method for repairing and mending utilize the circuit on X side and the Y side printed circuit board (PCB) to link this first patch cord and this second patch cord, yet, when this display panels has glass flip chip structure or membrane of flip chip structure, that is chip for driving is engaged in this display panels, perhaps be engaged in flexible base plate and save the X side or Y side printed circuit board (PCB), then above-mentioned preparing structure and method for repairing and mending are promptly inapplicable.
Summary of the invention
One of the present invention purpose is to provide a kind of data line patch structure of display panels, this display panels includes the one scan line, with the crossing data line of this sweep trace, one thin film transistor (TFT), it is formed at this sweep trace and is electrically connected with this data line confluce and with pixel electrode, one grid drive chip, it is electrically connected with this sweep trace to produce signal and drives this thin film transistor (TFT), and the one source pole chip for driving, it is electrically connected with this data line to produce data-signal and writes this pixel electrode.This preparing structure comprises: one first patch cord, and it is parallel with this sweep trace, and intersects with first end of this data line near this source driving chip; One second patch cord, it is parallel with this data line, and connects this grid drive chip; And one the 3rd patch cord, it is parallel with this sweep trace, and intersects with second end of relative this source driving chip of this data line.Wherein when this data line had breakpoint, this source driving chip can write this pixel electrode with this data-signal by this first patch cord, this second patch cord and the 3rd patch cord.
Another object of the present invention is to provide a kind of data line method for repairing and mending of display panels, this display panels includes the one scan line, with the crossing data line of this sweep trace, one thin film transistor (TFT), it is formed at this sweep trace and is electrically connected with this data line confluce and with pixel electrode, a grid drive chip, and it is electrically connected with this sweep trace to drive this thin film transistor (TFT), and the one source pole chip for driving, it is electrically connected with this data line data-signal is write this pixel electrode.This method for repairing and mending comprises: form first patch cord, wherein this first patch cord is parallel to this sweep trace, and intersects with first end of this data line near this source driving chip; This first patch cord of welding and this data line; Form second patch cord, wherein this second patch cord is parallel with this data line, and comprises the internal wiring of this grid drive chip; Form the 3rd patch cord, wherein the 3rd patch cord is parallel with this sweep trace, and intersects with second end of relative this source driving chip of this data line; And welding the 3rd patch cord and this data line.Wherein when this data line had breakpoint, this source driving chip can write this pixel electrode with this data-signal by this first patch cord, this second patch cord and the 3rd patch cord.
Description of drawings
Fig. 1 is the data line patch structure synoptic diagram of known LCD.
Fig. 2 is the data line patch structure figure of the display panels of first embodiment of the invention.
Fig. 3 is the data line patch structure figure of the display panels of second embodiment of the invention.
Fig. 4 is the data line patch structure figure of the display panels of third embodiment of the invention.
Fig. 5 is the data line patch structure figure of the display panels of fourth embodiment of the invention.
Embodiment
Fig. 2 shows the data line patch structure of the display panels of first embodiment of the invention, display panels 201, glass substrate for example, include sweep trace 202, and with the data line 203 that sweep trace 202 intersects, be formed at the thin film transistor (TFT) (not being shown in Fig. 2) of sweep trace 202 and data line 203 confluces.This thin film transistor (TFT) has the grid that is connected with sweep trace 202, the source electrode that is connected with data line 203, and the drain electrode that is connected with pixel electrode (not being shown in Fig. 2).Grid drive chip 204 utilizes conducting resinl to be engaged in the Y side outer peripheral areas of display panels 201, that is (chip-on-glass COG), and utilizes sweep trace 202 to transmit signal to drive this thin film transistor (TFT) to form the glass flip chip structure.Source driving chip 205 is engaged on the flexible base plate 206a, that is the encapsulation of formation volume pocket type (tape carrier package, TCP) structure, and utilize data line 203 data signal to write this pixel electrode.The side of flexible base plate 206a engages with display panels 201, and opposite side engages with a printed circuit board (PCB) 207.In addition, include many circuits such as power lead, ground wire on the printed circuit board (PCB) 207.
As shown in Figure 2, data line patch structure of the present invention comprises: the first patch cord 208a, and it is parallel with sweep trace 202, and intersects with the end of data line 203 near source driving chip 205; The second patch cord 208b, it is parallel with data line 203, and is electrically connected grid chip for driving 204, and simultaneously, the second patch cord 208b is connected with line electricity on the printed circuit board (PCB) 207 via flexible base plate 206b; The 3rd patch cord 208c, it is parallel with sweep trace 202, and intersects with the end of data line 203 with respect to source driving chip 205.This data line patch structure comprises the 4th patch cord 208d in addition, and it is formed at the oblique distribution zone on the display panels 201, and connects circuit on the first patch cord 208a and the printed circuit board (PCB) 207 via flexible circuit board 206a.In addition, has transparency conducting layer 209 between the 4th patch cord 208d and the first patch cord 208a.
According to the first embodiment of the present invention, when data line 203 has breakpoint 210, can utilize for example laser beam welding first patch cord 208a and data line 203 to form tie point 211, welding the 3rd patch cord 208c and data line 203 are with formation tie point 212, and welding transparency conducting layer 209 is to connect the first patch cord 208a and the 4th patch cord 208d.Therefore, the data-signal that source driving chip 205 produces can be in regular turn via the circuit on the first patch cord 208a, the 4th patch cord 208d, flexible base plate 206a, the printed circuit board (PCB) 207, flexible base plate 206b, the second patch cord 208b, with the internal wiring of grid drive chip 204, be sent to the segment data line that is positioned at breakpoint 210 belows via the 3rd patch cord 208c at last.
Fig. 3 shows the data line patch structure according to the display panels of second embodiment of the invention, display panels 301 is identical with the first embodiment of the present invention haply, yet in the second embodiment of the present invention, grid drive chip 304 is engaged on the flexible base plate 306a, that is formation membrane of flip chip (chip-on-film, COF) structure, and flexible base plate 306a engages with display panels 301, therefore the second patch cord 308b is connected with circuit on the flexible base plate 306a via connecting Scanning-electron 313, again via this line electricity connection grid drive chip 304.Therefore, shown in the 3rd figure, when data line 303 has breakpoint 310, utilize for example laser beam welding first patch cord 308a and data line 303 to form tie point 311, welding the 3rd patch cord 308c and data line 303 are with formation tie point 312, and welding transparency conducting layer 309 is to connect the first patch cord 308a and the 4th patch cord 308d.Therefore, the data-signal that source driving chip 305 produces can be in regular turn via the circuit on the first patch cord 308a, the 4th patch cord 308d, flexible base plate 306c, the printed circuit board (PCB) 307, flexible base plate 306b, the second patch cord 308b, flexible base plate 306a, with the internal wiring of grid drive chip 304, be sent to the segment data line of breakpoint 310 belows at last via the 3rd patch cord 308c.
Fig. 4 shows the data line patch structure according to the display panels of third embodiment of the invention, display panels 401 is identical with the first embodiment of the present invention haply, yet in the third 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, therefore data line patch structure comprises: the 5th patch cord 408e, it is parallel to sweep trace 402 and is electrically connected with source driving chip 405, and the 6th patch cord 408f, it is formed at the oblique distribution zone on the display panels 401, to be electrically connected the internal wiring of the first patch cord 408a and source driving chip 405.In addition, has transparency conducting layer 409 between the 6th patch cord 408f and the first patch cord 408a.
As shown in Figure 4, when data line 403 has breakpoint 410, utilize for example laser beam welding first patch cord 408a and data line 403 to form tie point 411, welding the 3rd patch cord 408c and data line 403 are with formation tie point 412, and welding transparency conducting layer 409 is to connect the first patch cord 408a and the 6th patch cord 408f.Therefore, the data-signal that source driving chip 405 produces can be in regular turn via the internal wiring of the first patch cord 408a, the 4th patch cord 408f, source driving chip 405, the 5th patch cord 408e, the second patch cord 408b, with the internal wiring of grid drive chip 404, be sent to the segment data line of breakpoint 410 belows at last via the 3rd patch cord 408c.
More than among each embodiment, each patch cord of data modification structure can include one or more respectively, therefore when a plurality of data line generation breakpoints are arranged on the display panels simultaneously, promptly can utilize the patch cord of correspondence to repair respectively.Shown in the 5th figure, the first patch cord 501a and 501b system respectively with odd number bar data line 502a and even number bar data line 502b welding.Relatively, the 3rd patch cord 503a and 503b also respectively with odd number bar data line 502a and even number bar data line 502b welding, therefore when breakpoint takes place odd number bar data line 502a, can utilize the first patch cord 501a, the 4th patch cord 506a, the second patch cord 504a and the 3rd patch cord 503a to transmit a data-signal.When breakpoint takes place even number bar data line 502b, can utilize the first patch cord 501b, the 4th patch cord 506b, the second patch cord 504b and the 3rd patch cord 503b to transmit a data-signal.
The present invention relates to a kind of data line patch structure and method for repairing and mending of display panels, it is characterized in that second patch cord connects grid drive chip, that is preparing structure of the present invention and method for repairing and mending utilize the internal wiring data signal of this grid drive chip.According to display panels of the present invention, this grid drive chip is glass flip chip structure or membrane of flip chip structure, and this source driving chip can be glass flip chip structure or volume pocket type encapsulating structure.
The above just utilizes preferred embodiment to describe technology contents of the present invention in detail, and unrestricted claim of the present invention.Therefore, the present invention must be by those of ordinary skills, appoint to execute that the craftsman thinks and be to modify as all, and do some small change and adjustment, will not lose main idea of the present invention place, also not break away from the spirit and scope of the present invention, so still all should be considered as further enforcement situation of the present invention.
Claims (22)
1, a kind of data line patch structure of display panels, this display panels includes the one scan line, with the crossing data line of this sweep trace, one thin film transistor (TFT), it is formed at this sweep trace and is electrically connected with this data line confluce and with pixel electrode, one grid drive chip, it is electrically connected with this sweep trace to produce signal and drives this thin film transistor (TFT), and one source pole chip for driving, it is electrically connected with this data line to produce data-signal and writes this pixel electrode, and this preparing structure comprises:
One first patch cord, it is parallel with this sweep trace, and crossing with first end of this data line;
One second patch cord, it is parallel with this data line, and is electrically connected this grid drive chip; And
One the 3rd patch cord, it is parallel with this sweep trace, and crossing with second end of this data line,
Wherein when this data line had breakpoint, this source driving chip can write this pixel electrode with this data-signal by this first patch cord, this second patch cord and the 3rd patch cord.
2, preparing structure as claimed in claim 1, wherein this grid drive chip is engaged on this display panels.
3, as claim 1 a described preparing structure, wherein this grid drive chip is engaged on the flexible base plate, and this second repairing linear system is utilized, and a circuit is electrically connected with this grid drive chip on this flexible base plate.
4, as claim 1 a described preparing structure, also comprise the 4th patch cord, be formed at the oblique distribution zone on this display panels, and be connected with line electricity on this first patch cord and the printed circuit board (PCB).
5, as claim 4 a described preparing structure, wherein the 4th patch cord is connected with line electricity on this printed circuit board (PCB) via flexible base plate, and this source driving chip is engaged on this flexible base plate.
6,, wherein comprise transparency conducting layer between the 4th patch cord and this first patch cord as claim 4 a described preparing structure.
7, as claim 1 a described preparing structure, also comprise the 5th patch cord, it is parallel with this sweep trace, and the 5th patch cord connects this source driving chip.
8, as claim 7 a described preparing structure, wherein this source driving chip is engaged on this display panels.
9, as claim 7 a described preparing structure, also comprise the 6th patch cord, it is formed at the oblique distribution zone on this substrate, and is electrically connected with this first patch cord and the 5th patch cord.
10,, wherein comprise transparency conducting layer between the 6th patch cord and this first patch cord as claim 9 a described preparing structure.
11, as claim 1 a described preparing structure, wherein close this source driving chip of first end of this data line, and second end of this data line is this source driving chip relatively.
12, a kind of data line method for repairing and mending of display panels, this display panels includes the one scan line, with the crossing data linear system of this sweep trace, one thin film transistor (TFT), it is formed at this sweep trace and is electrically connected with this data line confluce and with pixel electrode, one grid drive chip, it is electrically connected with this sweep trace to drive this thin film transistor (TFT), and one source pole chip for driving, it is electrically connected with this data line, data-signal is write this pixel electrode, this method for repairing and mending comprises following steps:
Form first patch cord, this first patch cord is parallel to this sweep trace, and crossing with first end of this data line;
This first patch cord of welding and this data line;
Form second patch cord, this second patch cord is parallel with this data line, and is electrically connected this grid drive chip;
Form the 3rd patch cord, the 3rd patch cord is parallel with this sweep trace, and crossing with second end of this data line; And
Welding the 3rd patch cord and this data line,
Wherein when this data line had breakpoint, then this source driving chip can write this pixel electrode with this data-signal by this first patch cord, this second patch cord and the 3rd patch cord.
13, as claim 12 a described method for repairing and mending, wherein this grid drive chip is engaged on this display panels.
14, as claim 12 a described method for repairing and mending, wherein this grid drive chip is engaged on the flexible base plate, and this second patch cord utilizes the circuit on this flexible base plate to be electrically connected with this grid drive chip.
15, as claim 12 a described method for repairing and mending, also comprise and form the 4th patch cord, it is formed at the oblique distribution zone of this display panels, and the 4th patch cord is connected with line electricity on this first patch cord and the printed circuit board (PCB).
16, as claim 15 a described method for repairing and mending, wherein the 4th patch cord is connected with line electricity on this printed circuit board (PCB) via flexible base plate, and this source driving chip is engaged on this flexible base plate.
17,, also comprise the transparency conducting layer between this first patch cord of welding and the 4th patch cord as claim 16 a described method for repairing and mending.
18, as claim 12 a described method for repairing and mending, also comprise formation the 5th patch cord, wherein the 5th patch cord is parallel with this sweep trace, and is electrically connected with this source driving chip.
19, as claim 18 a described method for repairing and mending, wherein this source driving chip is engaged on this display panels.
20, as claim 18 a described method for repairing and mending, the oblique distribution zone that also is contained in this display panels forms the 6th patch cord, and the 6th patch cord is electrically connected with this first patch cord and the 5th patch cord.
21,, also comprise the transparency conducting layer between this first patch cord of welding and the 6th patch cord as claim 20 a described method for repairing and mending.
22, as claim 12 a described preparing structure, wherein close this source driving chip of first end of this data line, and second end of this data line system is this source driving chip relatively.
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101430438B (en) * | 2008-12-08 | 2010-04-14 | 上海广电光电子有限公司 | Image element structure of liquid crystal display panel and its renovation method |
CN102376254A (en) * | 2011-11-19 | 2012-03-14 | 昆山工研院新型平板显示技术中心有限公司 | Gate line driving device and restoration method thereof |
CN101614916B (en) * | 2008-06-25 | 2012-05-30 | 北京京东方光电科技有限公司 | TFT-LCD pixel structure and method for restoring broken line of liquid crystal display |
CN105511185A (en) * | 2016-01-15 | 2016-04-20 | 青岛海信电器股份有限公司 | Large-screen LCM liquid crystal display panel and repairing circuit thereof |
CN106094293A (en) * | 2016-08-18 | 2016-11-09 | 京东方科技集团股份有限公司 | A kind of display floater, its restorative procedure and display device |
CN106297646A (en) * | 2015-05-20 | 2017-01-04 | 上海和辉光电有限公司 | A kind of array base palte and restorative procedure thereof |
CN107608152A (en) * | 2017-09-15 | 2018-01-19 | 上海天马微电子有限公司 | Array substrate and display panel |
WO2023115549A1 (en) * | 2021-12-21 | 2023-06-29 | Tcl华星光电技术有限公司 | Display panel and display apparatus |
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- 2006-03-13 CN CNB2006100594895A patent/CN100504515C/en not_active Expired - Fee Related
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101614916B (en) * | 2008-06-25 | 2012-05-30 | 北京京东方光电科技有限公司 | TFT-LCD pixel structure and method for restoring broken line of liquid crystal display |
US8355091B2 (en) | 2008-06-25 | 2013-01-15 | Beijing Boe Optoelectroncis Technology Co., Ltd. | Array substrate and method for repairing broken line of liquid crystal display |
CN101430438B (en) * | 2008-12-08 | 2010-04-14 | 上海广电光电子有限公司 | Image element structure of liquid crystal display panel and its renovation method |
CN102376254A (en) * | 2011-11-19 | 2012-03-14 | 昆山工研院新型平板显示技术中心有限公司 | Gate line driving device and restoration method thereof |
CN102376254B (en) * | 2011-11-19 | 2013-05-15 | 昆山工研院新型平板显示技术中心有限公司 | Gate line driving device and restoration method thereof |
CN106297646A (en) * | 2015-05-20 | 2017-01-04 | 上海和辉光电有限公司 | A kind of array base palte and restorative procedure thereof |
CN105511185A (en) * | 2016-01-15 | 2016-04-20 | 青岛海信电器股份有限公司 | Large-screen LCM liquid crystal display panel and repairing circuit thereof |
CN106094293A (en) * | 2016-08-18 | 2016-11-09 | 京东方科技集团股份有限公司 | A kind of display floater, its restorative procedure and display device |
CN106094293B (en) * | 2016-08-18 | 2019-08-27 | 京东方科技集团股份有限公司 | A kind of display panel, its restorative procedure and display device |
CN107608152A (en) * | 2017-09-15 | 2018-01-19 | 上海天马微电子有限公司 | Array substrate and display panel |
WO2023115549A1 (en) * | 2021-12-21 | 2023-06-29 | Tcl华星光电技术有限公司 | Display panel and display apparatus |
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