CN101424793A - LCD device and repairing method thereof - Google Patents
LCD device and repairing method thereof Download PDFInfo
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- CN101424793A CN101424793A CNA2007100477311A CN200710047731A CN101424793A CN 101424793 A CN101424793 A CN 101424793A CN A2007100477311 A CNA2007100477311 A CN A2007100477311A CN 200710047731 A CN200710047731 A CN 200710047731A CN 101424793 A CN101424793 A CN 101424793A
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Abstract
The invention relates to a liquid crystal display device and a repair method thereof. The liquid crystal display device comprises data wires, scanning wires, and terminal parts of the data wires, wherein the data wires and the scanning wires are mutually and vertically arrayed; and the terminal parts of the data wires are connected with the data wires. The liquid crystal display device also comprises first repair wires and second repair wires, wherein the first repair wires are vertically arrayed with the data wires; and the second repair wires are parallely arrayed with the data wires. The liquid crystal display device and the repair method can shorten the trace length of the repair wires and reduce the resistance and the capacitance of the repair wires.
Description
Technical field
The present invention relates to a kind of liquid crystal indicator and restorative procedure thereof, particularly reduce the resistance of reparation line and the liquid crystal indicator and the restorative procedure thereof of electric capacity.
Background technology
(Thin Film Transisitor Liquid Cyrstal Display TFT-LCD) is the main flow that characteristics such as, energy-saving and environmental protection frivolous with it become current kinds of displays part development gradually to thin-film transistor LCD device.
TFT-LCD array base palte one side is thick with many data lines, and the broken string of each bar data line can make that all line defect appears in the TFT-LCD panel, thereby influences the qualification rate of product.Up to the present the method for designing of many reparation lines has been proposed, in order to carry out the reparation of data line behind broken string.Fig. 1 has provided first kind of representative data line restorative procedure of the prior art.As shown in Figure 1, one sealing-in glue zone 2 is arranged on TFT-LCD array base palte 1, being positioned at 2 inside, sealing-in glue zone is to be full of the zone of liquid crystal and the data line DL that some are arranged in parallel, and the data line of making of second metal level on the TFT-LCD array base palte strides across reparation line R1 and R2 respectively at a uppermost end and a nethermost end.Terminal on the R1 of upside and two terminal modules about R2 passes through respectively links to each other with the wiring on the printed circuit board (PCB) 3 (PCB), and the reparation line wiring on the PCB3 links to each other the reparation line wiring on the PCB3 and the reparation line on screen right side by the terminal on that terminal module of the rightmost side.The reparation line on screen right side links to each other with R2 with reparation line R1 in the sealing-in glue in the lower right side of screen.So just realized being connected of data line upper and lower side reparation line R1 and R2.At liquid crystal region, all there is an intersection region in each bar data line with reparation line R1 and R2.When needs carry out the reparation of data line, just data line and reparation line intersection region are got through with laser beam.
As shown in Figure 1, the broken string phenomenon takes place in a certain data line, and that A1 that makes fork represents breakpoint.This data line is as follows with the operation that R1 repairs so: this data line DL that broken string takes place is got ready processing with laser beam respectively as area B 1, the B2 that repairs line R1 intersection in two ends up and down.In addition, once get processing ready with laser beam again at reparation line R1 and data line input terminal module lead-in wire intersection region B3.Like this, repair line R1 and under the effect of driving circuit, just realized breakpoint two parts data line DL conducting simultaneously up and down, reached repairing effect at last.Like this, under the effect of driving circuit, just realize breakpoint two parts data line conducting simultaneously up and down, reached repairing effect.
As mentioned above, at the TFT-LCD array substrate peripheral reparation line being set is the main method of repair data line broken string.This repair wire structure depends mainly on the repairing effect of the following that part of data line of breakpoint, and the input terminal of repairing line from the rightmost side begins till the data line breakpoint, and the resistance of this path and capacitance size directly have influence on the ability of reparation.Repair the track lengths of line and the resistance sizes that width has determined to repair line.And the capacitance size that the parallel-plate coupling capacitance that enters liquid crystal capacitance on the reparation line of liquid crystal section and data line and reparation line infall has determined to repair line substantially.If it is excessive to repair the resistance or the electric capacity of line, the reparation of data line just is difficult to successfully.
As shown in Figure 1, for existing restorative procedure, the track lengths of data line is about the twice of whole piece data line length substantially.In order to reduce the resistance of repairing line, be to increase the width of repairing line than preceding way commonly used.Increase the width of repairing line and strengthened the occupied area of repairing line on the one hand, more serious is to increase the width of repairing line in the liquid crystal section can make the liquid crystal capacitance of repairing on the line become big.Thereby increase to repair the impedance of line, the delay that causes repairing drive signal on the line increases, the drive signal display unit of being correlated with in can not the driven viewing area.All data lines all intersect with the reparation line, and resolution is high more, and data line and the coupling capacitance of repairing between the line are big more.
Second kind of restorative procedure is at data line and repairs the zone that line intersects, and strengthens data line and the overlapping area of repairing this double layer of metal of line, mainly is that laser beam is got reparation ready for convenience.Because in order to get ready with laser beam fully when repairing, the intersection area of data line and reparation line infall wants enough big.This just makes that the coupling capacitance of repairing on line with data line can be very big, thereby increases the impedance of repairing line, and the delay that causes repairing drive signal on the line increases, the drive signal display unit of being correlated with in can not the driven viewing area.Like this, this part display unit just can not normally show.
Adopt traditional broken wire repair method, the broken string number that can repair also has certain restriction.Because very long through the path in the reparation line institute of the periphery design of shielding, in order to reduce the coupling electric capacity of repairing between the line, the distance of repairing between line and the reparation line is all very big.Like this, if design the very side of occupation of land of too much reparation line, make the screen periphery originally can be used for designing the area decreases of public electrode wire figures at the periphery of screen.
Summary of the invention
Fundamental purpose of the present invention is to provide, and to shorten the track lengths of repairing line, reduces the resistance of reparation line and the data line restorative procedure of electric capacity.
For achieving the above object, the invention provides a kind of liquid crystal indicator, it comprises the data line and the sweep trace of mutual homeotropic alignment, the data line portion of terminal that is connected with data line, wherein, also comprise with first of data line homeotropic alignment and repair line, second repair line with data line is arranged in parallel.
Another technical scheme of the present invention provides a kind of restorative procedure of liquid crystal indicator, this liquid crystal indicator is drawn together the data line and the sweep trace of mutual homeotropic alignment, the data line portion of terminal that is connected with data line, repair line with first of data line homeotropic alignment, second repair line with data line is arranged in parallel, wherein, it may further comprise the steps:
At first, confirm to take place the position of broken string, select to leave the second nearest reparation line of broken data wire and repair operation;
Then, the data line and first at the place, the top of this data line that broken string takes place is repaired line infall and first is repaired line and the second reparation line infall is connected;
Then, find the breakpoint of broken string, and find out the first reparation line of the next line that is positioned at breakpoint place pixel;
At last, first repair line and data line infall and this first and repair line and second and repair the line infall and be connected at this.
The present invention makes it compared with prior art owing to adopted above-mentioned technical method, has following advantage and good effect:
Restorative procedure provided by the invention has reduced to repair the track lengths of line greatly.Avoided the reparation line cabling of long one of Zhou Bianchang in traditional reparation line.In reparation line design method provided by the invention, all there is the reparation line at two of each data line portion of terminal.The zone of each portion of terminal correspondence can be repaired the broken data wire more than 1 or 1 as required.The radical of the broken data wire that whole viewing area can be repaired is just more.Like this, than traditional broken wire repair method, reparation line design method provided by the invention can more effectively provide the qualification rate of product.Adopt reparation line design method provided by the invention, the length of repairing line is not very long, gets enough for a short time if repair line and second impedance design of repairing line to first, just can consider without drive circuit board driving reparation line.The method for designing of repairing line is simplified, can also be saved down the cost that design amplification driving brings on signal processing substrate.
Description of drawings
Fig. 1 is the structural representation of prior art liquid crystal indicator;
Fig. 2 is the first example structure synoptic diagram of liquid crystal indicator of the present invention;
Fig. 3 is the second example structure synoptic diagram of liquid crystal indicator of the present invention.
Embodiment
Below with reference to accompanying drawing liquid crystal indicator of the present invention and restorative procedure thereof are described in further detail.
At first, introduce liquid crystal indicator provided by the invention.As shown in Figure 1, this repair structure design provided by the invention is in array base palte one side of liquid crystal indicator, shown in specifically being constructed as follows: a glass substrate 11; One is formed at the first metal layer on the glass substrate 11, and repairs patterns such as line R11 with the sweep trace, first that this first metal layer forms; One is formed at the insulating film layer on the first metal layer connection strap; One is formed at second metal level on the insulating film layer, and with this second metal level patterns such as line R12 of repairing with data line DL ' the sweep trace homeotropic alignment, second that form; One is formed at the passivation layer on second metal level; One is formed at the via hole on the passivation layer; One is formed at the conductive film on the via hole, and the patterns such as pixel electrode that form with this layer conductive film.Wherein, data line DL ' and second repairs line R12 and is connected with drive circuit board 13, and second repairs line R12 is parallel to data line DL ' setting, and indulges and stride whole viewing area and be distributed between the data line portion of terminal C.First repairs line R11 and data line DL ' homeotropic alignment, and across whole viewing area be distributed in each capable pixel.
As shown in Figure 2, liquid crystal indicator provided by the invention is provided with first a reparation line R11 who traverses whole viewing area in each row pixel, be provided with second and repair line R12 between each data line terminal module.In Fig. 3, if the broken string problem of data line has taken place at the regional A11 that beats " * ".Can carry out following reparation operation to this data lines according to restorative procedure provided by the invention:
At first, confirm to take place that data lines position of broken string, it is nearer to judge this root broken string is repaired line from which root second on both sides.Selection is left the second nearest reparation line of broken data wire and is repaired operation;
Then, the top to this data line that broken string takes place, it is the place of wiring lead, repair line infall B12 at data line and first, and first repair line and be connected with the second reparation line distribution R121 infall B11 of splicing ear, and this connection procedure is that laser beam is got connection procedure ready.Data line signal behind this root broken string is drawn out to drive circuit board 13, gets on through delivering to that root second reparation line that is parallel to data line after the drive circuit board 13 signal processing and amplifying.
Then, find the breakpoint of broken string, and find out that root first reparation line of the next line that is positioned at breakpoint place pixel.
At last, repair line and data line infall B13, and this root first is repaired line and the second reparation line infall B14 gets processing ready with laser beam at this root first.The signal through amplify after corresponding broken string is transferred on the data line of breakpoint below.Like this, the second reparation line distribution R121 and second repairs line R12 and has just realized breakpoint two parts data line conducting simultaneously up and down in following connection of drive circuit board 13, has reached repairing effect.
As can be seen from Figure 2, because between each data line portion of terminal C, all designed the reparation line, so, adopt the radical of the broken string that reparation line design method provided by the invention can repair a lot.Have at least the portion of terminal C of several data lines just to have several to repair line.If the reparation line is also designed on the both sides in the viewing area, perhaps line is repaired in several of many designs between the data line portion of terminal, and the reparation line radical that can use so is just many more.In Fig. 3, repair line and break distance within half data line portion of terminal corresponding data line spacing.As seen, adopt reparation line design method provided by the invention, the impedance magnitude of data line after the reparation and normal data line differs and is not very big.Particularly broken string leaves second and repairs line very short-range the time, and the difference of this impedance magnitude is just littler.So, under the situation of so short reparation distance, can drive without drive circuit board and repair line.
Fig. 3 has provided and has not used drive circuit board and repair the reparation line project organization that line is connected, and corresponding restorative procedure.At this moment Dui Ying reparation line design method is compared with the method for designing that Fig. 2 provides, and has lacked this process of data line signal processing and amplifying on the drive circuit board.The structure same section of the structure of second embodiment and first embodiment is not just being described here, and its main difference point is: drive circuit board 23 is not connected with the second reparation line R22.
As shown in Figure 3, if the broken string problem of data line has taken place at the regional A21 that beats " * ".The restorative procedure that provides according to second embodiment of the invention can carry out following reparation operation to this data lines.
At first, confirm to take place on the glass substrate 21 that data lines DL ' position of broken string.It is nearer to judge this root broken string is repaired line R22 from which root second on both sides.Selection is left the second nearest reparation line R22 of broken string and is repaired operation.
Then, to the top of this data line DL ' that broken string takes place, promptly line infall B22 is repaired at data line and first in the place of wiring lead, and first repairs line and the second reparation line infall B21 gets processing ready with laser beam.
Then, find the breakpoint of broken string, and find out that root first reparation line R21 of the next line that is positioned at breakpoint place pixel.
At last, repair line R21 and data line DL ' infall B23, and this root first is repaired line and the second reparation line infall B24 gets processing ready with laser beam at this root first.The signal through amplify after corresponding broken string is transferred on the data line of breakpoint below.Like this, under not using drive circuit board and repairing the situation that line is connected, just can realize two parts data line while conducting about the breakpoint, reach repairing effect.
In the above-described embodiments, second between the data line portion of terminal repaired the next door of line design at the sub-pixel of corresponding right side data line terminals portion, replaced being used for originally the bonding jumper of shading with the second reparation line.And, in each row sub-pixel, traverse first of whole viewing area and repair the line design under the transistor leakage utmost point, to save the open area of each sub-pixel.Though only introduced the method that the broken string of data line is repaired in the foregoing description, but said method also is applicable to the broken string of repairing sweep trace: its concrete principle be the sweep trace portion of terminal to the wiring lead between the viewing area the design floating potential second repair line, on each row sub-pixel of viewing area, all design one second simultaneously and repair line.Between the sweep trace portion of terminal, design one first and repair line, broken string method to the method for the capable reparation of broken string of advancing sweep trace and repair data line is similar: at first, confirm to take place that root sweep trace position of broken string, it is nearer to judge this root broken string is repaired line from which root first on both sides, selects to leave the first nearest reparation line of broken string and repairs operation; Then, Far Left to this sweep trace that broken string takes place, it is the place of wiring lead, repair the line infall at sweep trace and second, and second repair line and get processing with the first reparation line infall of splicing ear ready with laser beam, scanning-line signal behind this root broken string is drawn out to signal processing substrate, gets on through delivering to that root first reparation line that is parallel to sweep trace after the signal processing and amplifying; Then, find the breakpoint of broken string, and find out that root second that is positioned at the next column correspondence of closely following on pixel the right, breakpoint place and repair line; At last, repair line and sweep trace infall, and this root second repairs line and first and repair the line infall and get processing ready with laser beam, the corresponding signal through after amplifying of broken string is transferred on the sweep trace below the breakpoint at this root second.Like this, under the effect of driving circuit, just realize the conducting simultaneously of breakpoint left and right sides two parts sweep trace, reached the effect of repairing the sweep trace broken string.
In sum, if liquid crystal indicator has n data line terminals portion, the data line that is positioned at the liquid crystal indicator viewing area so also just correspondingly has been divided into the n piece, and the length of each piece is exactly the 1/n of the length of viewing area vertical data line direction.According to broken data wire restorative procedure provided by the invention, to repair the track lengths of line and compare with normal data line length, the length that has more is controlled within the 1/2n of length of viewing area vertical data line direction.Than traditional reparation line design method, restorative procedure provided by the invention has reduced to repair the track lengths of line greatly, has avoided the reparation line cabling of long one of Zhou Bianchang in traditional reparation line.In reparation line design method provided by the invention, all there is the reparation line at two of each data line portion of terminal, the zone of each portion of terminal correspondence can be repaired the broken data wire more than 1 or 1 as required, and the radical of the broken data wire that whole viewing area can be repaired is just more.Like this, than traditional broken wire repair method, reparation line design method provided by the invention can more effectively provide the qualification rate of product.Adopt reparation line design method provided by the invention, the length of repairing line is not very long, gets enough for a short time if repair line and second impedance design of repairing line to first, just can consider without drive circuit board driving reparation line.The method for designing of repairing line is simplified, can also be saved down the cost that design amplification driving brings on signal processing substrate.
That more than introduces only is based on preferred embodiment of the present invention, can not limit scope of the present invention with this.Any measurement mechanism of the present invention is done replacement, the combination, discrete of step well know in the art, and the invention process step is done well know in the art being equal to change or replace and all do not exceed exposure of the present invention and protection domain.
Claims (10)
1. liquid crystal indicator, data line and sweep trace that it comprises mutual homeotropic alignment, the data line portion of terminal that is connected with data line is characterized in that, it also comprises with first of data line homeotropic alignment repairs line, second repairs line with data line is arranged in parallel.
2. liquid crystal indicator as claimed in claim 1 is characterized in that, described first repairs line is distributed in each row pixel.
3. liquid crystal indicator as claimed in claim 1 is characterized in that, described second repairs line is distributed between the data line portion of terminal.
4. liquid crystal indicator as claimed in claim 1 is characterized in that, the described second reparation line forms distribution and the first reparation line intersects.
5. the restorative procedure of a liquid crystal indicator has liquid crystal indicator as claimed in claim 1, it is characterized in that it may further comprise the steps:
At first, confirm to take place the position of broken string, select to leave the second nearest reparation line of broken data wire and repair operation;
Then, the data line and first at the place, the top of this data line that broken string takes place is repaired line infall and first is repaired line and the second reparation line infall is connected;
Then, find the breakpoint of broken string, and find out the first reparation line of the next line that is positioned at breakpoint place pixel;
At last, first repair line and data line infall and this first and repair line and second and repair the line infall and be connected at this.
6. the restorative procedure of liquid crystal indicator as claimed in claim 5 is characterized in that, described broken string is the broken string of data line.
7. the restorative procedure of liquid crystal indicator as claimed in claim 5 is characterized in that, described broken string is the broken string of sweep trace.
8. the restorative procedure of liquid crystal indicator as claimed in claim 5 is characterized in that, the described data line and the first reparation line infall and the first reparation line are got ready by laser beam with second Connection Step of repairing the line infall and be connected.
9. the restorative procedure of liquid crystal indicator as claimed in claim 5 is characterized in that, described first repairs line and data line infall and this first repairs line and get ready by laser beam with second Connection Step of repairing the line infall and be connected.
10. the restorative procedure of liquid crystal indicator as claimed in claim 5 is characterized in that, described first repairs line is connected with the second reparation line distribution infall of splicing ear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100477311A CN101424793A (en) | 2007-11-02 | 2007-11-02 | LCD device and repairing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100477311A CN101424793A (en) | 2007-11-02 | 2007-11-02 | LCD device and repairing method thereof |
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| CN101424793A true CN101424793A (en) | 2009-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2007100477311A Pending CN101424793A (en) | 2007-11-02 | 2007-11-02 | LCD device and repairing method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101930128B (en) * | 2009-06-24 | 2013-09-18 | 上海天马微电子有限公司 | Line repair structure and repair method thereof |
| CN105404428A (en) * | 2015-12-24 | 2016-03-16 | 上海天马微电子有限公司 | Array substrate, touch control line repairing method thereof and display panel |
| CN105448254A (en) * | 2014-09-23 | 2016-03-30 | 美格纳半导体有限公司 | Liquid crystal display device, method for constructing a repair type data format structure |
| 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 |
| CN108267878A (en) * | 2018-01-31 | 2018-07-10 | 昆山龙腾光电有限公司 | Liquid crystal display device |
| CN109449196A (en) * | 2018-12-29 | 2019-03-08 | 厦门天马微电子有限公司 | Display panel and display device |
-
2007
- 2007-11-02 CN CNA2007100477311A patent/CN101424793A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101930128B (en) * | 2009-06-24 | 2013-09-18 | 上海天马微电子有限公司 | Line repair structure and repair method thereof |
| CN105448254A (en) * | 2014-09-23 | 2016-03-30 | 美格纳半导体有限公司 | Liquid crystal display device, method for constructing a repair type data format structure |
| CN105448254B (en) * | 2014-09-23 | 2019-11-12 | 美格纳半导体有限公司 | LCD device and for construct repair categorical data format structure method |
| 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 |
| CN105404428A (en) * | 2015-12-24 | 2016-03-16 | 上海天马微电子有限公司 | Array substrate, touch control line repairing method thereof and display panel |
| CN105404428B (en) * | 2015-12-24 | 2018-09-25 | 上海天马微电子有限公司 | A kind of array substrate and its touch-control cabling restorative procedure and display panel |
| CN108267878A (en) * | 2018-01-31 | 2018-07-10 | 昆山龙腾光电有限公司 | Liquid crystal display device |
| CN109449196A (en) * | 2018-12-29 | 2019-03-08 | 厦门天马微电子有限公司 | Display panel and display device |
| CN109449196B (en) * | 2018-12-29 | 2020-08-18 | 厦门天马微电子有限公司 | Display panel and display device |
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Open date: 20090506 |