CN101431083B - Active array substrate, LCD panel and its mending method - Google Patents

Active array substrate, LCD panel and its mending method Download PDF

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Publication number
CN101431083B
CN101431083B CN200810185575XA CN200810185575A CN101431083B CN 101431083 B CN101431083 B CN 101431083B CN 200810185575X A CN200810185575X A CN 200810185575XA CN 200810185575 A CN200810185575 A CN 200810185575A CN 101431083 B CN101431083 B CN 101431083B
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data line
base plate
active array
array base
branching portion
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CN200810185575XA
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CN101431083A (en
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林宗正
樊祥彬
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AU Optronics Corp
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AU Optronics Corp
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Abstract

The invention provides an active array basal plate, a liquid crystal display panel and a mending method thereof. The active array basal plate comprises a substrate, a plurality of scanning beams, a plurality of digital beams, a plurality of pixel units and a common electrode, wherein the common electrode is provided with a main body part, a branch part and a neck part, the branch part is overlapped with at least one of the digital beams and a pixel electrode of the two adjacent pixel units corresponding to the digital beam. The mending method of the invention is more convenient and rapid, and furthermore, the production yield is increased, and the mending difficulty is reduced.

Description

Active array base plate, display panels and method for repairing and mending thereof
Technical field
The present invention relates to a kind of active array base plate, display panels and method for repairing and mending thereof, but relate in particular to a kind of active array base plate, display panels and method for repairing and mending thereof of correction of the defect data line.
Background technology
Flat-panel screens is developed into the display product of the most normal application at present, LCD for example, and LCD has the advantage of frivolous and low radiation, therefore is used on the market widely.
Thin Film Transistor-LCD is made up of active array base plate, subtend substrate and liquid crystal layer.Active array base plate generally is made up of the thin film transistor (TFT) of a plurality of arrayed, the pixel electrode of many data lines, multi-strip scanning line and corresponding configuration connections with each thin film transistor (TFT).Thin film transistor (TFT) is used as on-off element, can be used to control data signal and whether can be provided to corresponding pixel electrode, that is to say, for indivedual control pixel cells, via sweep trace and data line to choose specific pixel cell, and by bestowing suitable operating voltage, to produce the display result of corresponding this pixel cell.
Fig. 1 is the vertical view of known active array base plate.Please refer to Fig. 1, for convenience's sake, only to show that two pixel cells are example, active array base plate 10 has substrate 100, multi-strip scanning line 110, many data lines 120, a plurality of pixel cell 130 and common electrodes 140.Sweep trace 110 is arranged in the substrate 100, data line 120 is arranged in the substrate 100 and vertical with described multi-strip scanning line 110 substantially.Pixel cell 130 respectively with described multi-strip scanning line 110 and the 120 corresponding connections of described many data lines, each pixel cell 130 has on-off element 131 and pixel electrode 132, grid of on-off element 131 (not indicating) and source electrode (not indicating) electrically connect with corresponding scanning line 110 and data line 120 respectively, pixel electrode 132 electrically connects with the drain electrode (not indicating) of this on-off element 131, and on-off element 131 is a thin film transistor (TFT).On-off element 131 is by the control of sweep trace 110, and the data-signal that data line 120 is transmitted is written to pixel electrode 132.
The dielectric layer (not shown) is configured in the substrate 100, the whole sweep trace 110 that covers of dielectric layer, and the dielectric layer position is between sweep trace 110 and data line 120.Common electrode 140 is configured in the substrate 100, and is passed into and decides voltage, and pixel electrode 132 produces storage/temporary function with the part of common electrode 140 is overlapping whereby to produce storage capacitors, makes that the display result of pixel cell can be more stable.
Yet, might produce the phenomenons such as flaw that each element loose contact or data line 120 produce broken string in the technology, from known design as can be known, can't solve the problems referred to above.
Summary of the invention
In view of aforementioned, the purpose of this invention is to provide a kind of active array base plate and method for repairing and mending thereof, can repair broken data wire.
Based on above-mentioned purpose, the invention provides a kind of active array base plate, this active array base plate comprises a substrate, multi-strip scanning line, many data lines, a plurality of pixel cell and common electrodes.Multi-strip scanning line, many data lines and common electrode are arranged in the substrate.A plurality of pixel cells respectively with described multi-strip scanning line and the corresponding connection of described many data lines, each pixel cell comprises an on-off element and a pixel electrode, on-off element and corresponding scanning line and data line electrically connect, and pixel electrode and this on-off element electrically connect.This common electrode has a body, a branching portion and a neck, branching portion at least with described many data lines in one of and overlapping on the direction parallel to the pixel electrode of two adjacent pixel cells that should data line with described data line, neck is between this body and this branching portion.
Based on above-mentioned purpose, the present invention also provides a kind of active array base plate, and this active array base plate comprises a substrate, multi-strip scanning line, many data lines, a plurality of pixel cell and common electrodes.A plurality of pixel cells respectively with described multi-strip scanning line and the corresponding connection of described many data lines, each pixel cell comprises an on-off element and a pixel electrode, on-off element and corresponding scanning line and data line electrically connect, and pixel electrode and this on-off element electrically connect.This common electrode has a body, a branching portion and a neck, branching portion at least with described many data lines in one of overlapping on the direction parallel with described data line, neck is between this body and this branching portion, and wherein each described data line has a protuberance and is adjacent to this neck.
Based on above-mentioned purpose, the present invention also provides a kind of display panels, comprise in the above-mentioned active array base plate any, a subtend substrate and a liquid crystal layer.
Based on above-mentioned purpose, a kind of method of repairing active array base plate is provided, utilize one to repair the branching portion welding of energy with 2 repairing points with this common electrode of flaw data line, wherein this neck of this common electrode makes data-signal successfully to transmit via the first of data line, a repairing point of data line, the branching portion of common electrode, another second portion of repairing point and data line of data line for disconnecting.
Any that provides in the above-mentioned active array base plate is provided the method for repairing active array base plate provided by the present invention; Disconnect this neck, make this branching portion not electrically connect and provide one to repair energy to this corresponding data line or this branching portion with this body, make this corresponding data line have two and repair point, this fracture is between this two repairings point, and this two repairings point is connected with this branching portion.
Based on above-mentioned purpose, a kind of method of repair liquid LCD panel is provided, any that provides in the above-mentioned display panels is provided; Disconnect this neck, make this branching portion not electrically connect with this body; And provide a repairing energy to this corresponding data line or this branching portion, and making this corresponding data line have two and repair points, this fracture is between this two repairings point, and this two repairings point is connected with this branching portion.
The invention enables the method for repairing and mending can be convenient and promptly carry out, and then improve the production qualification rate and reduce and repair difficulty.
For above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, embodiment cited below particularly, and cooperate appended accompanying drawing, be described in detail below.
Description of drawings
Fig. 1 is the vertical view of known active array base plate;
Fig. 2 A is the vertical view according to the active array base plate of one embodiment of the invention;
Fig. 2 B is respectively the diagrammatic cross-section of Fig. 2 A by I-I ', II-II ' and III-III ' to Fig. 2 D;
Fig. 2 E is the partial enlarged drawing of Fig. 2 A by the regional N of the lateral direction observation of substrate;
Fig. 3 repairs the active array base plate synoptic diagram of energy to embodiments of the invention for method for repairing and mending according to the present invention provides; And
Fig. 4 repairs the display panels synoptic diagram of energy to embodiments of the invention for method for repairing and mending according to the present invention provides.
Wherein, description of reference numerals is as follows:
1 display panels
10 active array base plates
100 substrates
101 102 dielectric layers
103 protective seams
110 sweep traces
120 data lines
120a first
The 120b second portion
121 protuberances
130 pixel cells
131 on-off elements
132 pixel electrodes
140 common electrodes
141 bodies
142 branching portions
143 necks
20 subtend substrates
30 liquid crystal layers
Embodiment
Fig. 2 A is the vertical view according to the active array base plate of one embodiment of the invention, Fig. 2 B is respectively the diagrammatic cross-section of Fig. 2 A by I-I ', II-II ' and III-III ' to Fig. 2 D, and Fig. 2 E is the partial enlarged drawing of Fig. 2 A by the regional N of the lateral direction observation of substrate.
Please refer to Fig. 2 A, active array base plate 10 comprises substrate 100, sweep trace 110, data line 120, pixel cell 130 and common electrode 140.For convenience's sake, only showing that two pixel cells are example, but not in order to limitation the present invention.Sweep trace 110 is arranged in the substrate 100, data line 120 is arranged in the substrate 100 and vertical with described multi-strip scanning line 110 substantially.Pixel cell 130 respectively with described multi-strip scanning line 110 and the 120 corresponding connections of described many data lines, each pixel cell 130 has on-off element 131 and pixel electrode 132, grid of on-off element 131 (not indicating) and source electrode (not indicating) electrically connect with corresponding scanning line 110 and data line 120 respectively, pixel electrode 132 electrically connects with the drain electrode (not indicating) of this on-off element 131, and on-off element 131 is a thin film transistor (TFT).On-off element 131 is by the control of sweep trace 110, and the data-signal that data line 120 is transmitted is written to pixel electrode 132.
Common electrode 140 has body 140, branching portion 142 and neck 143.Branching portion 142 at least with the pixel electrode 132 overlapping (overlap) of data line 120 and two adjacent pixel cells 130, because can produce coupling capacitance between pixel electrode 132 and the data line 120, influence the power and the transmission capacity of data-signal, and then influence picture display effect, cause shadow effects, and by the setting of branching portion 142, branching portion 142 and data line 120 another electric capacity of overlapping generation, can compensate above-mentioned coupling capacitance, therefore, reduce the harmful effect that above-mentioned coupling capacitance produces, and stablize the picture display quality.Neck 143 is between body 140 and branching portion 142, and the width of neck 143 is less than the width of this branching portion 142, for example, the width of neck 143 be about branching portion 142 width 20% to 100%.
Please also refer to Fig. 2 A and Fig. 2 E, Fig. 2 E is the partial enlarged drawing of Fig. 2 A by the regional N of the lateral direction observation of substrate 100.Data line 120 has protuberance 121 and is adjacent to neck 143, at least a portion of protuberance 121 not with this common electrode 140 overlapping (overlap), neck 143 is not overlapping with corresponding data line 120.
Next narrate the method for repairing active array base plate according to an embodiment of the invention.Active array base plate 10 shown in Fig. 2 A is provided earlier; active array base plate 10 is the flaw active array base plate; corresponding data line 120 has the 120a of first; second portion 120b and fracture B; please also refer to Fig. 2 A; Fig. 2 B and Fig. 2 C; Fig. 2 B and Fig. 2 C are respectively the diagrammatic cross-section of Fig. 2 A by II ' and II-II '; branching portion 142 is positioned in the substrate 100 '; dielectric layer 101 and dielectric layer 102 are positioned on the branching portion 142 in regular turn; because the reason that fracture B exists; part dielectric layer 102 can be exposed; pixel electrode 132 is positioned at the both sides of corresponding data line 120 and is positioned on the dielectric layer 102; protective seam 103 integral body are covered on the pixel electrode 132, and in addition, second portion 120b and branching portion 142 are overlapping.Then, disconnect neck 143, make this branching portion 142 not electrically connect with this body 141.Please refer to Fig. 2 E, because the relation of protuberance 121 proximate neck 143, the step that disconnects neck 143 can comprise that the position according to this protuberance 121 disconnects this neck 143 from the outside of this substrate 100, the design of protuberance 121 can make the step that disconnects neck 143 be more prone to and really, promote repairing efficiency.Disconnect the step of this neck 143 can be from the outside of this substrate 100 or inboard position according to this protuberance 121 disconnect this neck 143.The mode that disconnects this neck 143 utilizes laser to divest for example.
As shown in Figure 3, provide at least one repairing ENERGY E to this corresponding data line 120 or branching portion 142, make this corresponding data line have the point of repairing R, repair a R for repairing some R1 or R2, repair ENERGY E and can offer repairing point R1 or R2 respectively, that is to say, can provide simultaneously and repair ENERGY E to repairing some R1 and R2, or, providing in regular turn and repair ENERGY E to repairing some R1 and R2, repairing point R1 and R2 are provided the order of repairing ENERGY E not to be limited to.Fracture B puts between R1, the R2 in this two repairing, these two repairings point R1, R2 and 142 weldings of this branching portion.Wherein repairing ENERGY E can be entered by the outside of this substrate 100 of active array base plate 10, or is entered by the inboard of this substrate 100 of this active array base plate 10, as repairing ENERGY E ' shown in.And disconnect the step of neck 143 and the step of repairing ENERGY E (or E ') order in no particular order is provided, repair ENERGY E (or E ') and be exemplified as laser.Please refer to Fig. 2 D, Fig. 2 D is the diagrammatic cross-section of Fig. 2 A by III-III ', by repairing the energy that ENERGY E (or E ') provides, dielectric layer 101 can be slightly destroyed, and second portion 120b or branching portion 142 can be melted and contact with each other with electrically connecting, therefore, finish the method for repairing and mending of embodiments of the invention.Branching portion 142 is positioned at fracture B and two simultaneously and repairs some R1, R2 below.
Fig. 4 is the display panels of one embodiment of the invention.Display panels 1 comprises above-mentioned active array base plate 10, subtend substrate 20 and liquid crystal layer 30.Subtend substrate 20 is exemplified as colored filter substrate.
The method of repair liquid LCD panel according to an embodiment of the invention, this method comprises provides above-mentioned display panels 1, wherein this corresponding data line 120 has fracture B, next, disconnect this neck 143 from substrate 100 outsides, make this branching portion 142 not electrically connect with this body 141.Provide the repairing ENERGY E to this corresponding data line 140 or this branching portion 142 from substrate 100 outsides, make this corresponding data line have two and repair some R1, R2, this fracture B is between this two repairings point R1, R2, and this two repairings point R1, a R2 are connected with this branching portion 142.The detailed part of each step can not given unnecessary details at this with reference to the method for above-mentioned repairing active array base plate, therefore, just finishes the method for the repair liquid LCD panel of embodiments of the invention.
Finish the active array base plate or the display panels of repairing through method for repairing and mending, data-signal can successfully transmit via the 120a of first of data line 120, the repairing point R1 of data line 120, the branching portion 142 of common electrode, the repairing point R2 of data line 120 and the second portion 120b of data line 120 in regular turn, or successfully transmits via the second portion 120b of data line, the repairing point R2 of data line 120, the branching portion 142 of common electrode, the repairing point R1 of data line 120 and the 120a of first of data line 120 in regular turn.
Because the design of the design of the branching portion of common electrode of the present invention and neck or the protuberance of data line, method for repairing and mending can be convenient and be promptly carried out, and then improves the production qualification rate and reduce and repair difficulty.
Though the present invention discloses as above with embodiment; right its is not in order to limit the present invention; any those of ordinary skills; 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 the scope that appending claims defines.

Claims (16)

1. active array base plate comprises:
One substrate;
The multi-strip scanning line is arranged in this substrate;
Many data lines are arranged in this substrate also vertical with described multi-strip scanning line substantially;
A plurality of pixel cells, with described multi-strip scanning line and the corresponding connection of described many data lines, each pixel cell comprises respectively:
One on-off element electrically connects with corresponding scanning line and data line; And
One pixel electrode electrically connects with this on-off element; And
One common electrode is arranged in this substrate, and this common electrode has:
One body is substantially with described multi-strip scanning line parallel;
One branching portion, at least with described many data lines in one of and overlapping on the direction parallel to the pixel electrode of two adjacent pixel cells that should data line with described data line; And
One neck is between this body and this branching portion.
2. active array base plate as claimed in claim 1, wherein the width of this neck is less than the width of this branching portion.
3. active array base plate as claimed in claim 1, wherein each described data line has a protuberance, is adjacent to this neck.
4. active array base plate as claimed in claim 1, wherein this neck is not overlapping with this corresponding data line.
5. active array base plate as claimed in claim 1, wherein this corresponding data line has a fracture and 2 repairing points, and this fracture is between this two repairings point, and this branching portion does not electrically connect with this body.
6. active array base plate as claimed in claim 5, wherein this two repairings point is connected with this branching portion, and this neck is for disconnecting.
7. display panels comprises:
Active array base plate as claimed in claim 1;
One subtend substrate; And
One liquid crystal layer is arranged between this active array base plate and this subtend substrate.
8. active array base plate comprises:
One substrate;
The multi-strip scanning line is arranged in this substrate;
Many data lines are arranged in this substrate also vertical with described multi-strip scanning line substantially;
A plurality of pixel cells, with described multi-strip scanning line and the corresponding connection of described many data lines, each pixel cell comprises respectively:
One on-off element electrically connects with corresponding scanning line and data line; And
One pixel electrode electrically connects with this on-off element; And
One common electrode is arranged in this substrate, and this common electrode has:
One body is substantially with described multi-strip scanning line parallel;
One branching portion, at least with described many data lines in one of overlapping on the direction parallel with described data line; And
One neck, between this body and this branching portion, wherein each described data line has a protuberance and is adjacent to this neck.
9. display panels comprises:
Active array base plate described in claim 8;
One subtend substrate; And
One liquid crystal layer is arranged between this active array base plate and this subtend substrate.
10. method of repairing active array base plate comprises:
Active array base plate as claimed in claim 1 is provided, and wherein this corresponding data line has a fracture;
Disconnect this neck, make this branching portion not electrically connect with this body; And
Provide at least one repairing energy to this corresponding data line or this branching portion, make this corresponding data line have two and repair point, this fracture is between this two repairings point, and this two repairings point is connected with this branching portion.
11. method as claimed in claim 10, wherein each described data line has a protuberance and is adjacent to this neck, and this step that disconnects this neck comprises from this base side and disconnects this neck according to the position of this protuberance.
12. method as claimed in claim 10, wherein this repairing energy is entered by the outside or the inboard of this substrate of this active array base plate.
13. a method of repairing active array base plate comprises:
Active array base plate as claimed in claim 8 is provided, and wherein this corresponding data line has a fracture;
Disconnect this neck, make this branching portion not electrically connect with this body; And
Provide at least one repairing energy to this corresponding data line or this branching portion, make this corresponding data line have two and repair point, this fracture is between this two repairings point, and this two repairings point is connected with this branching portion.
14. method as claimed in claim 13, wherein the step of this this neck of disconnection comprises that the position according to this protuberance disconnects this neck from the outside of this substrate.
15. the method for a repair liquid LCD panel comprises:
One display panels is provided, and this display panels comprises:
Active array base plate as claimed in claim 1, wherein this corresponding data line has a fracture;
The subtend substrate; And
One liquid crystal layer is arranged between this active array base plate and this subtend substrate;
Disconnect this neck, make this branching portion not electrically connect with this body; And
Provide at least one repairing energy to this corresponding data line or this branching portion, make this corresponding data line have two and repair point, this fracture is between this two repairings point, and this two repairings point is connected with this branching portion.
16. the method for a repair liquid LCD panel comprises:
One display panels is provided, and this display panels comprises:
Active array base plate as claimed in claim 8, wherein this corresponding data line has a fracture;
The subtend substrate; And
One liquid crystal layer is arranged between this active array base plate and this subtend substrate;
Disconnect this neck, make this branching portion not electrically connect with this body; And
Provide at least one repairing energy to this corresponding data line or this branching portion, make this corresponding data line have two and repair point, this fracture is between this two repairings point, and this two repairings point is connected with this branching portion.
CN200810185575XA 2008-12-17 2008-12-17 Active array substrate, LCD panel and its mending method Expired - Fee Related CN101431083B (en)

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CN200810185575XA CN101431083B (en) 2008-12-17 2008-12-17 Active array substrate, LCD panel and its mending method

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Application Number Priority Date Filing Date Title
CN200810185575XA CN101431083B (en) 2008-12-17 2008-12-17 Active array substrate, LCD panel and its mending method

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CN101431083B true CN101431083B (en) 2011-07-06

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Publication number Priority date Publication date Assignee Title
CN102062979B (en) * 2010-11-16 2012-05-30 深圳市华星光电技术有限公司 Pixel electrode and relevant liquid crystal display panel thereof
TWI595290B (en) * 2016-02-18 2017-08-11 群創光電股份有限公司 Display device
CN108630143B (en) * 2017-03-21 2020-07-07 群创光电股份有限公司 Display panel

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