CN101713892B - Pixel structure and method for repairing same - Google Patents
Pixel structure and method for repairing same Download PDFInfo
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- CN101713892B CN101713892B CN200810166110XA CN200810166110A CN101713892B CN 101713892 B CN101713892 B CN 101713892B CN 200810166110X A CN200810166110X A CN 200810166110XA CN 200810166110 A CN200810166110 A CN 200810166110A CN 101713892 B CN101713892 B CN 101713892B
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Abstract
The invention relates to a pixel structure and a method for repairing the same. The pixel structure comprises two pixels defined by two data lines and two gate lines, wherein two pixels electrodes are arranged in the two pixels respectively; and a shared electrode wire comprises two branch structures and two extending structures. The two pixels share the electrode wire, and if one of the two pixels has defects, the branch structure connected with the defective pixel is switched off.
Description
Technical field
The present invention relates to Thin Film Transistor-LCD, relate in particular to the dot structure and the pixel method for repairing and mending of Thin Film Transistor-LCD.
Background technology
Thin Film Transistor-LCD (Thin Film Transistor-Liquid Crystal Display, TFT-LCD) comprise thin film transistor base plate and colored filter substrate, two substrates respectively contains between electrode and two substrates and is filled with liquid crystal, and liquid crystal is determined by the voltage that supplies to electrode the penetrability of light.
Thin film transistor base plate has many gate lines (gate line) and data line (data line), and per two gate lines intersect with two data lines and surround pixel of formation, and the viewing area of the arrayed of pixel formation thin film transistor (TFT).
Fig. 1 to Fig. 3 shows the dot structure synoptic diagram of three kinds of prior aries, for the sake of clarity, only shows important assembly among the figure, omits less important assembly.With reference to figure 1, per two gate lines 1 and pixel of two data line 3 definition, so Fig. 1 has shown two dot structures.Each pixel respectively includes grid 5, source electrode 7, drain electrode 9, pixel electrode 11, common-battery polar curve 13.Wherein, source electrode 7, drain electrode 9, data line 3 are positioned at one deck and source electrode 7 and are electrically connected with data line 3.In addition, pixel electrode 11 is positioned at source electrode 7, drain electrode 9, data line 3 tops and passes through the contact hole (not shown) and is electrically connected with drain electrode.In addition, common-battery polar curve 13, grid 5, gate line 1 are positioned at one deck and are positioned at source electrode 7, drain electrode 9, data line 3 belows.In each pixel, pixel electrode 11 electrode wires 13 together forms parallel plate capacitors, and as the storage capacitors of pixel, storage capacitors mainly is when allowing the voltage of charged pixel can remain to next time frame update.Fig. 1 shows the storage capacitor structure that is made of common-battery polar curve 13, roughly is English alphabet " H " type.
About function, relevance and the formation method of each assembly among Fig. 1, can be with reference to disclosed document, for example U.S. Pat 7,253, and 851 is described.
Fig. 2 shows another kind of existing dot structure, different with Fig. 1 be in, the storage capacitor structure by common-battery polar curve 13 constitutes roughly is bell; Fig. 3 shows another kind of existing dot structure, different with Fig. 1 be in, the storage capacitor structure by common-battery polar curve 13 constitutes roughly is " one " font.
In process of production, factors such as technology pollution, dust, static may cause the signal of pixel to open circuit or short circuit, make the display abnormality of pixel, cause defectives such as bright spot, dim spot, little bright spot.Wherein, fleck defect is because also be bright when deceiving picture entirely, and human eye is discovered easily, and the pixel that therefore must have fleck defect is repaired into dim spot.But existing dot structure when carrying out the pixel repairing, can produce some problems.
Fig. 4 to Fig. 6 is an example with " H " type storage capacitor structure of Fig. 1, shows that existing dot structure produces the laser repairing method of fleck defect.As shown in Figure 4, therefore pixel electrode 11 electrode wires 13 short circuit 15 because of the dust pollution of technology together produces fleck defect.As shown in Figure 5, for bright point repairing is become dim spot, carry out laser preparing, make pixel electrode 11 and gate line 1 short circuit 17 with laser, but because the short circuit 15 of common-battery polar curve 13 and pixel electrode 11 also can have influence on signal, and can cause the defective of bright line, therefore also must transmitting so far, the common-battery polar curve 13 of pixel cuts off.As shown in Figure 6, reach the common-battery polar curve 13 of inpainted pixels with laser cutting 19, after cutting off common-battery polar curve 13, the common electrode signal can't reach this inpainted pixels, forms dim spot.
Above-mentioned existing dot structure and method for repairing and mending after common-battery polar curve 13 is cut off, can interrupt discontinuously when the common electrode signal reaches this inpainted pixels, have influence on other and do not have defective pixels; In addition, existing dot structure and method for repairing and mending cause other defective possibly.
Fig. 7 A and Fig. 7 B are example with the bell storage capacitor structure of Fig. 2, show other defective of existing dot structure and method for repairing and mending, and wherein Fig. 7 B is the sectional view of Fig. 7 A in A-A ' direction.Fig. 7 B has also shown some less important assemblies that Fig. 7 A does not draw, and comprises gate insulator 23, passive layer 25, dielectric layer 27.
Shown in Fig. 7 A,, can make pixel electrode 11 and gate line 1 short circuit with laser, and cut off 19 with laser 29 (seeing Fig. 7 B) and transmit the common-battery polar curve 13 of pixel so far when electrode wires 13 short circuits 15 and when producing fleck defect together of the pixel generation pixel electrode 11 of top.
But, shown in Fig. 7 B, since on the pixel design in order to obtain maximum aperture opening ratio, tend to the distance of common-battery polar curve 13 with data line 3 designed to minimum value, because common-battery polar curve 13 is quite little with the distance of data line 3, make when laser 29 cuts off the common-battery polar curve 13 of 19 pixel electrodes, 11 belows, be easy to cause common-battery polar curve 13 and data line 3 short circuits 21, cause more serious bright line defective.
Except above-mentioned defective, existing dot structure, the stray capacitance between common-battery polar curve 13 and the data line 3 is excessive, causes the distortion of common electrode signal and data-signal.
Therefore, be badly in need of a kind of new dot structure and pixel method for repairing and mending, under the situation that does not influence aperture opening ratio, defective such as the data line 3 that produces when improving laser preparing electrode wires 13 short circuits 21 together easily, common electrode signal interruption are discontinuous, and the stray capacitance between minimizing common-battery polar curve 13 and the data line 3, avoid the distortion of common electrode signal and data-signal.
Summary of the invention
A purpose of the present invention is to provide a kind of dot structure, this dot structure is under the situation that does not influence aperture opening ratio, incoherent problem after data line electrode wires short circuit together easily, the common electrode signal interruption when improving laser preparing, and the stray capacitance between minimizing common-battery polar curve and the data line, avoid the distortion of common electrode signal and data-signal.
Another purpose of the present invention is to provide a kind of method for repairing and mending of pixel, problem such as the data line that this method produces in the time of can improving laser preparing electrode wires short circuit together easily, common electrode signal interruption are discontinuous.
According to above-mentioned purpose, the embodiment of the invention discloses a dot structure, comprises two data lines of vertically arranging; Two transversely arranged gate lines; Two pixels, by two data lines and gate line intersect surround defined, each pixel in described two pixels has grid, source electrode and drain electrode respectively; Two pixel electrodes are arranged at respectively in two pixels; And the common-battery polar curve, comprising two apparatus derivatoriuses and two extended structures, the common-battery polar curve is electrically connected two apparatus derivatoriuses respectively, and two apparatus derivatoriuses are electrically connected two extended structures respectively, and two extended structures are arranged at respectively in two pixels.
Among other embodiment of the present invention, without limits for its shape of apparatus derivatorius of common-battery polar curve, quantity, position.
The dot structure according to the present invention, the embodiment of the invention disclose a kind of pixel method for repairing and mending, comprise: two data lines are provided; Two gate lines are provided; Two pixels are provided, by described two data lines and described two gate lines intersect surround defined, each pixel in described two pixels has grid, source electrode and drain electrode respectively; Provide two pixel electrodes respectively in described two pixels; And a common-battery polar curve is provided, and comprising two apparatus derivatoriuses and two extended structures, described common-battery polar curve connects described two apparatus derivatoriuses respectively, and described two apparatus derivatoriuses connect described two extended structures respectively, and described two extended structures are arranged at respectively in described two pixels; One that reaches in two pixels has defective, cuts off described apparatus derivatorius with defect pixel, interrupts being sent to the common electrode signal of described defect pixel thus.
Above-mentioned method for repairing and mending may also comprise the step with pixel electrode and gate line short circuit.
Description of drawings
Fig. 1 to Fig. 3 shows existing dot structure;
Fig. 4 to Fig. 6 shows existing pixel method for repairing and mending;
Fig. 7 A to Fig. 7 B shows existing pixel method for repairing and mending and defective;
Fig. 8 to Figure 10 shows dot structure embodiment of the present invention; And
Figure 11 A and Figure 11 B show pixel method for repairing and mending embodiment of the present invention.
Embodiment
Fig. 8 shows the embodiment of dot structure of the present invention.The embodiment of dot structure of the present invention, per two data lines of vertically arranging 41 and two transversely arranged gate lines 43 intersect encirclement and have defined two pixels, and these two pixels respectively have pixel electrode 39 and shared common-battery polar curve 45.Wherein, in two pixel regions, common-battery polar curve 45 comprises two apparatus derivatoriuses 47 and two extended structures 49, common-battery polar curve 45 is electrically connected two apparatus derivatoriuses 47 respectively, two apparatus derivatoriuses 47 are electrically connected two extended structures, 49, two extended structures 49 respectively and are arranged at respectively in this two pixel, form interlayer electric capacity with pixel electrode 49, or the title storage capacitors, when making the charged voltage of this pixel can remain to next time frame update.
In addition, each pixel has grid 51, source electrode 53, drain electrode 55, and wherein grid 51 is electrically connected with gate line 43, and source electrode 53 is electrically connected with data line 41, and pixel electrode is electrically connected with drain electrode via the contact hole (not shown).Wherein source electrode 53 can exchange with the role of drain electrode 55, and strictly speaking, when pixel charge, what be connected with data line was called source electrode, but pixel is when discharging, and what be electrically connected with data line can be described as drain electrode.
On vertical positional relationship, the embodiment of the invention meets the structure of bottom gate formula (bottom), but in other embodiments, also can be the structure of top grid formula.In the structure of Fig. 8, grid 51, gate line 43, common-battery polar curve 45 are arranged at one deck and are positioned on the substrate (not shown); Gate insulator 57 (seeing Figure 11 B) cover gate 51, gate line 43, common-battery polar curve 45; Data line 41, source electrode 53, drain electrode 55 are positioned at one deck and are arranged on the gate insulator 57; Passive layer 59 (seeing Figure 11 B) cover data line 51, source electrode 53, drain electrode 55; Dielectric layer 61 (seeing Figure 11 B) covers passive layer 59; Pixel electrode 39 is arranged on the dielectric layer 61.
In the foregoing description, extended structure 49 be shaped as bell, but in other embodiments, also can be other external form, for example English alphabet " H " type, " one " font or other geometric configuration.In addition, apparatus derivatorius 47 its shapes of common-battery polar curve 45, quantity, position are also without limits.In addition, in the foregoing description, two apparatus derivatoriuses 47 and two extended structures 49 are image line with common-battery polar curve 45, are symmetricly set in this two pixel, but in other embodiment, also can asymmetricly be provided with.
Fig. 9 shows another embodiment of dot structure of the present invention.As shown in Figure 9, per two data lines of vertically arranging 41 and two transversely arranged gate lines 43 intersect encirclement and have defined two pixels, and these two pixels respectively have pixel electrode 39 and shared common-battery polar curve 45.Wherein, in pixel region, common-battery polar curve 45 connects a plurality of respectively, and for example 47, two apparatus derivatoriuses 47 of two apparatus derivatoriuses connect an extended structure 49 again, and extended structure 49 is arranged in this pixel, forms interlayer electric capacity with pixel electrode 39.
Figure 10 shows another embodiment of dot structure of the present invention.Per two data lines of vertically arranging 41 and two transversely arranged gate lines 43 intersect encirclement and have defined two pixels, and these two pixels respectively have pixel electrode 39 and shared common-battery polar curve 45.Wherein, different with Fig. 8 embodiment be in, in two pixel regions, two apparatus derivatoriuses 47 and two extended structures 49 are not that image line is symmetricly set in this two pixel with common-battery polar curve 45, but present slightly asymmetric structure.
Other assembly of above-mentioned Fig. 9 and Figure 10 embodiment is identical with the embodiment of its interactively and Fig. 8, repeats no more.
According to dot structure disclosed by the invention,, can avoid the distortion of common electrode signal and data-signal because the data line 41 overlapping area minimizing of electrode wires 45 together makes that the stray capacitance between common-battery polar curve 45 and the data line 41 lowers.In addition, the framework of formed interlayer electric capacity of the embodiment of the invention and non-traditional series system, but the framework of parallel way, owing to such reason, when the dot structure that the present invention proposes carries out laser preparing, can improve prior art behind laser preparing, incoherent problem after the common electrode signal interruption.
Figure 11 A to Figure 11 B is an example with Fig. 8 dot structure of the present invention, shows the embodiment of pixel method for repairing and mending of the present invention, and wherein Figure 11 B is the sectional view of Figure 11 A in B-B ' direction.
Shown in Figure 11 A, the pixel method for repairing and mending at first provides two data lines 41 and two gate lines 43 to surround two pixels of definition, these two pixels respectively have pixel electrode 39 and share a common-battery polar curve 45, wherein, in two pixel regions, common-battery polar curve 45 comprises two apparatus derivatoriuses 47 and two extended structures 49, and common-battery polar curve 45 connects two apparatus derivatoriuses 47 respectively, two apparatus derivatoriuses 47 connect two extended structures, 49, two extended structures 49 respectively and are arranged at respectively in this two pixel.Afterwards, when the pixel generation pixel electrode 39 of top produces fleck defect with extended structure 49 short circuits 67, carry out laser preparing, make pixel electrode 39 and gate line 43 short circuits 69 with laser, and, interrupt transmitting the common electrode signal of pixel so far thus with laser 65 (seeing Figure 11 B) cut-out 63 apparatus derivatoriuses 47.
Shown in Figure 11 B, because two pixels were shared a common-battery polar curve 45 about dot structure provided by the invention made, behind the apparatus derivatorius 47 of the leftmost pixel that cuts off 63 common-battery polar curves 45 with laser 65, can't influence the pixel that the common electrode signal is sent to the right, improve the incoherent problem of signal of having no progeny in the common-battery polar curve 45.In addition, because data line 41 and apparatus derivatorius 47, the distance that is cut off 63 places in other words has been spaced to distance enough far away, is enough to avoid laser 65 to cut off at 63 o'clock, and common-battery polar curve 45 causes more serious bright line defective with data line 41 short circuits.
The above is the preferred embodiments of the present invention only, is not in order to limit claim scope of the present invention; All other do not break away from the equivalence of being finished under the spirit that invention discloses and changes or modify, and all should comprise within the scope of the following claims.
Claims (11)
1. dot structure comprises:
Two data lines;
Two gate lines;
Two pixels, by described two data lines and described two gate lines intersect surround defined, each pixel in described two pixels has grid, source electrode and drain electrode respectively;
Two pixel electrodes are arranged at respectively in described two pixels; And
The common-battery polar curve comprises two apparatus derivatoriuses and two extended structures, and described common-battery polar curve is electrically connected described two apparatus derivatoriuses respectively, and described two apparatus derivatoriuses are electrically connected described two extended structures respectively, and described two extended structures are arranged at respectively in described two pixels.
2. dot structure as claimed in claim 1, wherein said extended structure are the bell structure.
3. dot structure as claimed in claim 1, wherein said extended structure are English alphabet " H " type structure.
4. dot structure as claimed in claim 1, wherein said two apparatus derivatoriuses are image line with described common-battery polar curve, are symmetricly set in described two pixels.
5. dot structure as claimed in claim 1, wherein said two apparatus derivatoriuses are asymmetric to be arranged in described two pixels.
6. dot structure as claimed in claim 1, wherein said two extended structures are image line with described common-battery polar curve, are symmetricly set in described two pixels.
7. dot structure as claimed in claim 1, each pixel in wherein said two pixels also comprises:
Grid;
Source electrode; And
Drain electrode, wherein said grid is electrically connected with described gate line, described source electrode is electrically connected with described data line, described pixel electrode is electrically connected with described drain electrode via contact hole, described grid, described gate line, described common-battery polar curve are arranged at same one deck, and described data line, described source electrode, described drain electrode are positioned at same layer.
8. dot structure as claimed in claim 1, each pixel in wherein said two pixels has a plurality of apparatus derivatoriuses.
9. pixel method for repairing and mending comprises:
Two data lines are provided;
Two gate lines are provided;
Two pixels are provided, by described two data lines and described two gate lines intersect surround defined, each pixel in described two pixels has grid, source electrode and drain electrode respectively;
Provide two pixel electrodes respectively in described two pixels; And
A common-battery polar curve is provided, comprises two apparatus derivatoriuses and two extended structures, described common-battery polar curve connects described two apparatus derivatoriuses respectively, and described two apparatus derivatoriuses connect described two extended structures respectively, and described two extended structures are arranged at respectively in described two pixels; And
One in two pixels has defective, cuts off described apparatus derivatorius with defect pixel, interrupts being sent to the common electrode signal of described defect pixel thus.
10. method as claimed in claim 9 further comprises and uses the step of laser with described pixel electrode and described gate line short circuit.
11. method as claimed in claim 9, position and described data line that wherein said apparatus derivatorius forms have distance, and when avoiding described apparatus derivatorius to be cut off, described common-battery polar curve is electrically connected with described data line and causes short circuit.
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| CN200810166110XA CN101713892B (en) | 2008-10-08 | 2008-10-08 | Pixel structure and method for repairing same |
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| CN200810166110XA CN101713892B (en) | 2008-10-08 | 2008-10-08 | Pixel structure and method for repairing same |
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| CN101713892A CN101713892A (en) | 2010-05-26 |
| CN101713892B true CN101713892B (en) | 2011-10-05 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102983283B (en) * | 2012-11-30 | 2016-04-27 | 昆山工研院新型平板显示技术中心有限公司 | Repairable AMOLED device, display screen and method for repairing and mending thereof |
| CN103792747B (en) * | 2014-02-10 | 2016-05-04 | 北京京东方显示技术有限公司 | A kind of array base palte and preparation method thereof, restorative procedure and display unit |
| CN104777635B (en) * | 2015-04-08 | 2018-07-06 | 深圳市华星光电技术有限公司 | The pixel defect recovering method and liquid crystal display panel of liquid crystal display panel |
| CN107658326A (en) * | 2017-03-20 | 2018-02-02 | 广东聚华印刷显示技术有限公司 | Electro-luminescence display device and its dot structure and preparation method |
| CN107608149B (en) * | 2017-08-25 | 2019-07-09 | 惠科股份有限公司 | A kind of active array substrate and display device |
| JP2019053116A (en) * | 2017-09-13 | 2019-04-04 | シャープ株式会社 | Display device with position input function |
| CN107464525A (en) * | 2017-09-19 | 2017-12-12 | 武汉华星光电半导体显示技术有限公司 | A kind of display panel repairing method and display panel |
| CN109324454B (en) | 2018-09-30 | 2020-10-16 | 惠科股份有限公司 | Display panel and display device |
| US11735600B2 (en) | 2020-05-19 | 2023-08-22 | Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Pixel layout and display panel having pixel layout |
| CN111627925B (en) * | 2020-05-19 | 2023-10-13 | 深圳市华星光电半导体显示技术有限公司 | Pixel layout and display panel with same |
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| CN101202287A (en) * | 2006-12-12 | 2008-06-18 | Lg.菲利浦Lcd株式会社 | Array substrate, method of manufacturing the same, and method of repairing line in the same |
| CN101211080A (en) * | 2006-12-29 | 2008-07-02 | Lg.菲利浦Lcd株式会社 | Array substrate for liquid crystal display device and method of fabricating the same |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101202287A (en) * | 2006-12-12 | 2008-06-18 | Lg.菲利浦Lcd株式会社 | Array substrate, method of manufacturing the same, and method of repairing line in the same |
| CN101211080A (en) * | 2006-12-29 | 2008-07-02 | Lg.菲利浦Lcd株式会社 | Array substrate for liquid crystal display device and method of fabricating the same |
Non-Patent Citations (1)
| Title |
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| JP特开2001-109015A 2001.04.20 |
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