CN100454556C - Repairing structure and active component array substrate - Google Patents
Repairing structure and active component array substrate Download PDFInfo
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- CN100454556C CN100454556C CNB2006101002368A CN200610100236A CN100454556C CN 100454556 C CN100454556 C CN 100454556C CN B2006101002368 A CNB2006101002368 A CN B2006101002368A CN 200610100236 A CN200610100236 A CN 200610100236A CN 100454556 C CN100454556 C CN 100454556C
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Abstract
The present invention discloses a repairing structure and an active component array baseplate. The repairing structure comprises at least one first conducting wire, one first insulation layer, at least one second conducting wire and one repairing connecting layer, wherein the first insulation layer covers the first conducting wire; the second conducting wire is arranged above the first insulation layer; the second insulation layer covers the second conducting wire and the first insulation layer; the repairing connecting layer is arranged on the second insulation layer; particularly, the repairing connecting layer is electrically connected with the first conducting wire; the repairing connecting layer overlaps the second conducting wire but is not electrically connected with the second conducting wire. Thus, the present invention provides the repairing structure which can improve the repairing qualified rate.
Description
Technical field
The invention relates to a kind of preparing structure and active component array base board, particularly can improve the preparing structure and the higher active component array base board of repairing qualification rate of repairing qualification rate relevant for a kind of.
Background technology
Though LCD Technology has become ripe at present, but display panels can produce some flaws (defect) unavoidably in manufacture process, and these flaws can cause the discomfort on the sense organ when the liquid crystal display displays image, abandon these display panels defective if directly scrap, will make that manufacturing cost significantly increases.Usually, a dependence improves manufacturing process technology and realizes that zero defect rate is very difficult, so the flaw repairing technique of display panels becomes quite important.In known technology, the flaw of display panels is repaired and is adopted laser welding (laser welding) or laser cutting modes such as (laser cutting) to carry out usually.
Generally speaking, LCD mainly comprises a display panels and a backlight module.Display panels mainly comprises a thin-film transistor array base-plate and a colored optical filtering substrates.Wherein, thin-film transistor array base-plate can produce some broken string flaws unavoidably in the process of making.These the broken string flaws can detect by array test (array test), and can the repairing manufacturing process in laser chemical vapor deposition method (laserchemical vapor deposition, laser CVD) with its reparation.Yet be not that all broken string flaws all are suitable for the laser chemical vapor deposition method and repair.Just detected situation after the broken string flaw is to form liquid crystal born of the same parents (cell) for example.
In addition, if the broken string flaw is upright at thin-film transistor array base-plate and colored optical filtering substrates (not illustrating) group, and it is just detected behind the injection liquid crystal (not illustrating), because the thin film transistor (TFT) array (TFTarray) that broken string takes place end has been covered by among the whole liquid crystal born of the same parents (cell), therefore can not above broken string, do repairing with the laser chemical vapor deposition method, form bright line for fear of going up at display panels (not illustrating), essential by other repairing method, for example be that patch cord by thin-film transistor array base-plate is with the display panels reparation.
Figure 1A illustrates the structure vertical view of known a kind of thin-film transistor array base-plate, and Figure 1B illustrates among Figure 1A the profile along hatching A-A '.Please earlier with reference to Figure 1A, thin-film transistor array base-plate 100 and have a substrate 110, multi-strip scanning line 120, many data wires 130, a plurality of pixel cell 140 and patch cords (repair line) 150.Wherein, scan line 120, data wire 130, pixel cell 140 and patch cord 150 all are disposed on the substrate 110.Each pixel cell 140 comprises a thin-film transistor 142 and an indium tin oxide, and (indium tin oxide, ITO) electrode 144.Thin-film transistor 142 is electrical connected with corresponding scanning line 120 and data wire 130, and indium-tin oxide electrode 144 is electrical connected with active member 140.
, and inject after the liquid crystal group at thin-film transistor array base-plate 100 and a colored optical filtering substrates, a display panels can form.Yet,, just must repair by patch cord 150 if when finding on the thin-film transistor array base-plate 100 the broken string flaw.For example, when on thin-film transistor array base-plate 100, detecting an impaired data wire 130, can be respectively at welding point 150a and 150b with laser welding patch cord 150 and impaired data wire 130, make impaired data wire 130 can recover most function via patch cord 150.
Please refer to Figure 1B, it should be noted that between data wire 130 and patch cord 150, also to be formed with an insulating barrier 162, an amorphous silicon layer 164 and a doped amorphous silicon layer 166, on data wire 130, also be coated with a protective layer 168.Wherein, the thickness of insulating barrier 162, amorphous silicon layer 164 and doped amorphous silicon layer 166 sum total be about 3500 dusts (angstrom,
) between 8500 dusts.Carrying out laser welding so that data wire 130 when being welded together with patch cord 150, because the thicknesses of layers summation between data wire 130 and the patch cord 150 is bigger, makes laser be difficult for burning to patch cord 150.The phenomenon or the data wire 130 that so will cause occurring loose contact between data wire 130 and the patch cord 150 can't be welded together with patch cord 150, and then cause and repair the qualification rate reduction.
Summary of the invention
Because above-mentioned, the purpose of this invention is to provide a kind of preparing structure that can improve the repairing qualification rate.
Another object of the present invention provides a kind of higher active component array base board of qualification rate of repairing.
For reaching above-mentioned or other purpose, the present invention proposes a kind of preparing structure, and this preparing structure comprises at least one first lead, one first insulating barrier, at least one second lead, one second insulating barrier and a repairing articulamentum.Wherein, first insulating barrier covers first lead.Second conductor configurations is in first insulating barrier top.Second insulating barrier covers second lead and first insulating barrier.Repairing articulamentum is disposed on second insulating barrier.Repair articulamentum and electrically connect, and repairing articulamentum and second lead are overlapping but do not electrically connect each other with first lead.
According to the described preparing structure of one embodiment of the invention, wherein the thickness of second insulating barrier is between 1500 dust to 5000 dusts.
Described according to one embodiment of the invention, preparing structure more comprises at least one contact hole, and this contact hole runs through first insulating barrier and second insulating barrier, partly inserts contact hole to electrically connect first lead and repair articulamentum.
Described according to one embodiment of the invention, preparing structure more comprises semi-conductor layer, is disposed between first insulating barrier and second lead.
According to the described preparing structure of one embodiment of the invention, wherein second lead partly is covered in the top of first lead.
According to the described preparing structure of one embodiment of the invention, the material of wherein repairing articulamentum comprises indium tin oxide (indium tin oxide, ITO), indium-zinc oxide (indium zinc oxide, IZO), metal, alloy, above-mentioned material make up one of them or other suitable material.
The present invention proposes a kind of active component array base board in addition, and this active component array base board comprises a substrate, a pel array and a preparing structure.Wherein, substrate has a viewing area and a periphery circuit region.In the viewing area of pixel array configuration on substrate.Preparing structure is disposed in the periphery circuit region on the substrate, and this preparing structure and pel array electrically connect, and comprises that at least one first lead, one first insulating barrier, at least one second lead, one second insulating barrier and repair articulamentum.First insulating barrier covers first lead.Second conductor configurations is in first insulating barrier top, and electrically connects with pel array.Second insulating barrier covers second lead and first insulating barrier.Repairing articulamentum is disposed on second insulating barrier.Repair articulamentum and electrically connect, and repairing articulamentum and second lead are overlapping but do not electrically connect each other with first lead.
According to the described active component array base board of one embodiment of the invention, wherein the thickness of second insulating barrier is between 1500 dust to 5000 dusts.
Described according to the present invention's one enforcement, active component array base board more comprises at least one contact hole, and this contact hole runs through first insulating barrier and second insulating barrier, partly inserts contact hole to electrically connect first lead and repair articulamentum.
Implement described active component array base board according to the present invention one, wherein pel array comprises multi-strip scanning line, many data wires, a plurality of active member and a plurality of pixel electrodes, preparing structure comprises many second leads, and one of them electrically connects these data wires with one of these second leads of preparing structure respectively, and each active member and corresponding scanning line and data wire electrically connect, each pixel electrode and corresponding active member electric connection.
Implement described active component array base board according to the present invention one, preparing structure more comprises semi-conductor layer, is disposed between first insulating barrier and second lead.
Implement described active component array base board according to the present invention one, wherein second lead partly is covered in the top of first lead.
Implement described active component array base board according to the present invention one, the material of wherein repairing articulamentum comprises that indium tin oxide, indium-zinc oxide, metal, alloy, above-mentioned material make up one of them or other suitable material.
In preparing structure proposed by the invention, repair second insulating barrier that has only simple layer between the articulamentum and second lead.When carrying out laser preparing, laser can burn second insulating barrier easily, and the repairing articulamentum and second lead are welded together.So after carrying out laser preparing, be difficult for producing the situation of repairing failure, and then second lead and first lead be electrical connected.Therefore, preparing structure can improve the repairing qualification rate.In addition, be manufactured with above-mentioned preparing structure on the active component array base board proposed by the invention, the repairing qualification rate of this active component array base board is higher.
Description of drawings
Figure 1A illustrates the structure vertical view of known a kind of thin-film transistor array base-plate.
Figure 1B illustrates among Figure 1A the profile along hatching A-A '.
Fig. 2 A illustrates the vertical view of the preparing structure of one embodiment of the invention.
Fig. 2 B illustrates the profile of the preparing structure of Fig. 2 A along hatching B-B '.
Fig. 2 C to Fig. 2 E illustrates the structural representation of the preparing structure of different embodiment.
Fig. 3 A illustrates the vertical view of the active component array base board of one embodiment of the invention.
Fig. 3 B illustrates the profile of the active component array base board of Fig. 3 A along hatching C-C '.
Description of reference numerals:
100: thin-film transistor array base-plate
110,710: substrate
120,722: scan line
130,724: data wire
140: pixel cell
142: thin-film transistor
144: indium-tin oxide electrode
150: patch cord
150a, 150b, 350a, 730a, 730b: welding point
162: insulating barrier
164: amorphous silicon layer
166: doped amorphous silicon layer
168: protective layer
300,400,500,600,730: preparing structure
310,731: the first leads
320: the first insulating barriers
330: the second leads
340: the second insulating barriers
350: repair articulamentum
360: semiconductor layer
700: active component array base board
710a: viewing area
710b: periphery circuit region
720: pel array
726: active member
728: pixel electrode
Embodiment
Fig. 2 A illustrates the vertical view of the preparing structure of one embodiment of the invention, and Fig. 2 B illustrates the profile of the preparing structure of Fig. 2 A along hatching B-B '.Please be simultaneously with reference to Fig. 2 A and Fig. 2 B, preparing structure 300 is to be made on the substrate 110, and this preparing structure 300 comprises at least one first lead 310, one first insulating barrier 320, at least one second lead 330, one second insulating barrier 340 and a repairing articulamentum 350.Wherein, first insulating barrier 320 covers first lead 310.Second lead 330 is disposed at first insulating barrier, 320 tops.Second insulating barrier 340 covers second lead 330 and first insulating barrier 320.Repairing articulamentum 350 is disposed on second insulating barrier 340.In one embodiment, repair the top that articulamentum 350 partly is covered in first lead 310 and second lead 330.Repair articulamentum 350 and electrically connect, and it is overlapping or crossing but do not electrically connect (that is repairing articulamentum 350 and second lead 330 be electrically insulated each other) each other to repair articulamentum 350 and second lead 330 with first lead 310.
In the present embodiment, preparing structure more comprises at least one contact hole H and semi-conductor layer 360.Contact hole H runs through first insulating barrier 320 and second insulating barrier 340, partly inserts contact hole H to electrically connect first lead 310 and repair articulamentum 350.360 of semiconductor layers are disposed between first insulating barrier 320 and second lead 330.
Hold above-mentionedly, the material of first lead 310 for example is aluminium, aluminium alloy or other suitable conductive material.The material of first insulating barrier 320 for example is silicon nitride or other suitable material.The material of second lead 330 for example is aluminium, aluminium alloy, chromium, titanium or other suitable conductive material.The material of second insulating barrier 340 for example is silicon nitride or other suitable material.The thickness of this second insulating barrier 340 is for example between 1500 dust to 5000 dusts.The material of repairing articulamentum 350 for example is electric conducting material or other suitable material, the material of promptly repairing articulamentum 350 for example is indium tin oxide (indium tin oxide, ITO), indium-zinc oxide (indium zinc oxide, IZO), metal, alloy, above-mentioned material make up one of them or other suitable conductive material.Semiconductor layer 360 for example comprises amorphous silicon layer and doped amorphous silicon layer.
The preparing structure 300 of present embodiment can be used in repairs multiple flaw, for example the broken string flaw of display panels.The method of its repairing is to carry out laser welding at welding point 350a, is welded together with second lead 330 so that repair articulamentum 350, and then makes the distribution with 330 electric connections of second lead recover most of function.It should be noted that compared to the data wire 130 and 150 of the patch cords of known technology to be formed with insulating barrier 162, amorphous silicon layer 164 and doped amorphous silicon layer 166, repair between the articulamentum 350 and second lead 330 and have only simple layer second insulating barrier 340.When carrying out laser preparing, laser can burn second insulating barrier 340 easily, makes the repairing articulamentum 350 and second lead 330 be welded together.So, will be not easy to produce the situation of repairing failure behind the laser preparing.Second lead 330 after repairing is finished can see through repairing articulamentum 350 and electrically connect with first lead 310.So, the distribution that electrically connects second lead 330 can recover most function.By above narration as can be known, preparing structure 300 can improve the repairing qualification rate really.
Be noted that in the preparing structure 300 of present embodiment, though the form that first lead 310, second lead 330 and repairing articulamentum 350 are illustrated as Fig. 2 A, the form that Fig. 2 A illustrated only is a wherein example of the present invention.Fig. 2 C to Fig. 2 E shows the structural representation of the preparing structure of other possibility embodiment.In the preparing structure 400,500,600 that Fig. 2 C to Fig. 2 E is illustrated, first lead 310, second lead 330 and repairing articulamentum 350 have different forms.Be noted that also in the above-mentioned preparing structure 300,400,500,600, second lead 330 is not covered in the top of first lead 310.Yet in other embodiments, second lead 330 also can partly be covered in the top of first lead 310.
In order to illustrate that preparing structure proposed by the invention can be applicable to the broken string flaw of repair liquid LCD panel or active component array base board, below will propose an active component array base board and describe.
Fig. 3 A illustrates the vertical view of the active component array base board of one embodiment of the invention, and Fig. 3 B illustrates the profile of the active component array base board of Fig. 3 A along hatching C-C '.Please be simultaneously with reference to Fig. 3 A and Fig. 3 B, active component array base board 700 comprises a substrate 710, a pel array 720 and a preparing structure 730.Wherein, substrate 710 has a viewing area 710a and a periphery circuit region 710b.Pel array 720 is disposed in the viewing area 710a on the substrate 710.Preparing structure 730 is disposed in the periphery circuit region 710b on the substrate 710, this preparing structure 730 electrically connects with pel array 720, and comprises at least one first lead 731, one first insulating barrier 320, at least one second lead 330, one second insulating barrier 340 and a repairing articulamentum 350.Wherein, the configuration relation of each member in first lead 731, first insulating barrier 320, second lead 330, second insulating barrier 340 and the configuration relation of repairing articulamentum 350 and the above-mentioned preparing structure 300 is identical.Special must be that second lead 330 electrically connects with pel array 720.
Be similar to preparing structure 300, in active component array base board 700, preparing structure 730 also comprises at least one contact hole H and semi-conductor layer 360.Contact hole H runs through first insulating barrier 320 and second insulating barrier 340, partly inserts contact hole H to electrically connect first lead 731 and repair articulamentum 350.Semiconductor layer 360 is disposed between first insulating barrier 320 and second lead 330.In addition, pel array 720 comprises multi-strip scanning line 722, many data wires 724, a plurality of active member 726 and a plurality of pixel electrodes 728, and preparing structure 730 comprises many second leads 330.One of them electrically connects these data wires 724 with one of these second leads 330 of preparing structure 730 respectively, and each active member 726 electrically connects with corresponding scanning line 722 and data wire 724, each pixel electrode 728 and corresponding active member 726 electric connections.
More specifically, substrate 710 for example is the substrate of glass substrate, quartz base plate or other suitable material.The material of scan line 722 for example is aluminium, aluminium alloy or other suitable conductive material.The material of data wire 724 for example is aluminium, aluminium alloy, chromium, titanium or other suitable conductive material.Active member 726 for example is thin-film transistor, the switch element with three terminals or other suitable element.Pixel electrode 728 for example is transparency electrode, reflecting electrode or semi-penetration semi-reflective electrode, and the material of pixel electrode 728 for example is indium tin oxide, indium-zinc oxide or other transparent or opaque conductive material.The material of the first lead 731 for example material with scan line 722 is identical, and first lead 731 for example is to form simultaneously with scan line 722.The material of first insulating barrier 320 for example as hereinbefore.The material of the second lead 330 for example material with data wire 724 is identical, and second lead 320 for example is to form simultaneously with data wire 724.The material of second insulating barrier 340 and thickness are for example as hereinbefore.The material of repairing articulamentum 350 is for example identical with pixel electrode 728, and repairing articulamentum 350 for example is to form simultaneously with pixel electrode 728.Semiconductor layer 360 for example comprises amorphous silicon layer and doped amorphous silicon layer.
In the manufacture process of said active element array substrate 700 or utilize in the process of active component array base board 700 assemblings one display panels, may produce some flaws unavoidably.If detecting has impaired data wire 130 on the active component array base board 700, then can repair by preparing structure 730.Specifically, if the broken string flaw takes place in the data wire 724 on active component array base board 700, then can repair articulamentum 350 and corresponding second lead 320 that connect impaired data wire 724 with 730b with laser welding at welding point 730a respectively, make impaired data wire 724 recover most function by second lead 320, repairing articulamentum 350 and 731 conductings of first lead.
Be similar to the situation of preparing structure 300, when carrying out laser welding so that repairing articulamentum 350 and be welded together with second lead 330, laser can burn second insulating barrier 340 easily, and the repairing articulamentum 350 and second lead 330 are welded together.Therefore be not easy to produce the situation of repairing failure.After repairing was finished, 724 of data wires can recover most function via second lead 320, repairing articulamentum 350 and first lead 731.In other words, active component array base board 700 will have preferable repairing qualification rate.
In sum, preparing structure and active component array base board proposed by the invention have following advantage at least:
One, in preparing structure proposed by the invention, repairs second insulating barrier that has only simple layer between the articulamentum and second lead.When carrying out laser preparing, laser can burn second insulating barrier, so that the repairing articulamentum and second lead are welded together, therefore can not produce the situation of repairing failure.In other words, preparing structure can improve the repairing qualification rate.
Two, be manufactured with on the active component array base board proposed by the invention and can improve the preparing structure of repairing qualification rate, therefore also will have preferable repairing qualification rate.
Three, preparing structure and the manufacturing of active component array base board and existing manufacturing process compatibility proposed by the invention only needs change several roads light shield wherein, but need not increase extra manufacturing process equipment.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limiting the present invention, anyly has the knack of this skill person, without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention is as the criterion when looking claims person of defining.
Claims (13)
1. a preparing structure is characterized in that, comprising:
At least one first lead;
One first insulating barrier covers this first lead;
At least one second lead is disposed at this first insulating barrier top;
One second insulating barrier covers this second lead and this first insulating barrier; And
One repairs articulamentum, is disposed on this second insulating barrier, wherein should repair articulamentum and the electric connection of this first lead, and this repairing articulamentum and this second lead are overlapping but do not electrically connect each other.
2. preparing structure as claimed in claim 1 is characterized in that, the thickness of this second insulating barrier is between 1500 dust to 5000 dusts.
3. preparing structure as claimed in claim 1 is characterized in that, more comprises at least one contact hole, and this contact hole runs through this first insulating barrier and this second insulating barrier, and this repairing articulamentum is partly inserted this contact hole to electrically connect this first lead.
4. preparing structure as claimed in claim 1 is characterized in that, more comprises semi-conductor layer, is disposed between this first insulating barrier and this second lead.
5. preparing structure as claimed in claim 1 is characterized in that this second lead partly is covered in the top of this first lead.
6. preparing structure as claimed in claim 1 is characterized in that, the material of this repairing articulamentum comprises that indium tin oxide, indium-zinc oxide, metal, alloy or above-mentioned material make up one of them.
7. an active component array base board is characterized in that, comprising:
One substrate has a viewing area and a periphery circuit region;
One pel array is disposed in this viewing area on this substrate; And
One preparing structure is disposed in the periphery circuit region on this substrate, and this preparing structure and this pel array electrically connect, and comprise:
At least one first lead;
One first insulating barrier covers this first lead;
At least one second lead is disposed at this first insulating barrier top, and electrically connects with this pel array;
One second insulating barrier covers this second lead and this first insulating barrier; And
One repairs articulamentum, is disposed on this second insulating barrier, wherein should repair articulamentum and the electric connection of this first lead, and this repairing articulamentum and this second lead are overlapping but do not electrically connect each other.
8. active component array base board as claimed in claim 7 is characterized in that, the thickness of this second insulating barrier is between 1500 dust to 5000 dusts.
9. active component array base board as claimed in claim 7, it is characterized in that, this preparing structure more comprises at least one contact hole, and this contact hole runs through this first insulating barrier and this second insulating barrier, and this repairing articulamentum is partly inserted this contact hole to electrically connect this first lead.
10. active component array base board as claimed in claim 7, it is characterized in that, this pel array comprises multi-strip scanning line, many data wires, a plurality of active member and a plurality of pixel electrodes, this preparing structure comprises many second leads, and one of them electrically connects those data wires with one of those second leads of this preparing structure respectively, each active member and corresponding scanning line and data wire electrically connect, each pixel electrode and corresponding active member electric connection.
11. active component array base board as claimed in claim 7 is characterized in that, this preparing structure more comprises semi-conductor layer, is disposed between this first insulating barrier and this second lead.
12. active component array base board as claimed in claim 7 is characterized in that, this second lead partly is covered in the top of this first lead.
13. active component array base board as claimed in claim 12 is characterized in that, the material of this repairing articulamentum comprises that indium tin oxide, indium-zinc oxide, metal, alloy or above-mentioned material make up one of them.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006101002368A CN100454556C (en) | 2006-07-05 | 2006-07-05 | Repairing structure and active component array substrate |
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| CNB2006101002368A CN100454556C (en) | 2006-07-05 | 2006-07-05 | Repairing structure and active component array substrate |
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| CN1877844A CN1877844A (en) | 2006-12-13 |
| CN100454556C true CN100454556C (en) | 2009-01-21 |
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| CNB2006101002368A Active CN100454556C (en) | 2006-07-05 | 2006-07-05 | Repairing structure and active component array substrate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI463628B (en) * | 2012-02-03 | 2014-12-01 | E Ink Holdings Inc | Display panel circuit structure |
| CN103311220B (en) * | 2013-06-27 | 2015-12-23 | 深圳市华星光电技术有限公司 | A kind of circuit mending structure and method for repairing and mending |
| KR20160059530A (en) * | 2014-11-18 | 2016-05-27 | 삼성디스플레이 주식회사 | Method of manufacturing display substrate, repair method of display substrate and display substrate repaired by the method |
| CN105629608A (en) * | 2016-01-15 | 2016-06-01 | 武汉华星光电技术有限公司 | Array substrate structure and array substrate broken line repairing method |
| US10276603B2 (en) | 2016-10-14 | 2019-04-30 | Boe Technology Group Co., Ltd. | Array substrate and repairing method thereof |
| CN111108541B (en) * | 2017-09-27 | 2021-10-15 | 夏普株式会社 | Flexible display device and method for manufacturing flexible display device |
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| US5473452A (en) * | 1994-12-21 | 1995-12-05 | Goldstar Co., Ltd. | Liquid crystal display device with repair structure |
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| US20050116915A1 (en) * | 2003-09-11 | 2005-06-02 | Sharp Kabushiki Kaisha | Active matrix substrate, display apparatus, and method for producing the same |
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| US5062690A (en) * | 1989-06-30 | 1991-11-05 | General Electric Company | Liquid crystal display with redundant FETS and redundant crossovers connected by laser-fusible links |
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| JPH07175085A (en) * | 1993-12-21 | 1995-07-14 | Sanyo Electric Co Ltd | Active matrix type liquid crystal display device |
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