CN100524784C - Pixel structure and manufacturing method of liquid crystal display panel with pixel structure - Google Patents
Pixel structure and manufacturing method of liquid crystal display panel with pixel structure Download PDFInfo
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- CN100524784C CN100524784C CNB2007101678445A CN200710167844A CN100524784C CN 100524784 C CN100524784 C CN 100524784C CN B2007101678445 A CNB2007101678445 A CN B2007101678445A CN 200710167844 A CN200710167844 A CN 200710167844A CN 100524784 C CN100524784 C CN 100524784C
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Abstract
A pixel structure comprises a first active element, a second active element, a first pixel electrode electrically connected with the first active element, a second pixel electrode electrically connected with the second active element and a first capacitor lower electrode. The first active element and the second active element are both electrically connected with the scanning line and the data line. The first pixel electrode has a first cross pattern and a plurality of sets of first stripe patterns connected to the first cross pattern. The second pixel electrode has a second cross pattern and a plurality of groups of second stripe patterns connected with the second cross pattern. The first capacitor lower electrode is located below the first crossing pattern and includes a first region and a plurality of second regions. The first pixel electrode substantially shields the first region and does not shield the plurality of second regions. The area ratio of the first region to the plurality of second regions is about 10: 1 to about 300: 1. When the pixel structure is applied to the polymer stable alignment type liquid crystal display panel, the pixel structure is beneficial to improving the situation that the toppling direction of liquid crystal molecules is not clear.
Description
Technical field
The present invention relates to a kind of dot structure and have the manufacture method of the display panels of this dot structure, and particularly relate to and a kind ofly make liquid crystal molecule present the dot structure that multiple domain orientation (multi-domain alignment) arranges and have the manufacture method of the display panels of this dot structure.
Background technology
Market is to reverse characteristic such as (no gray scale inversion), colour cast little (little color shift), brightness height (highluminance), high color richness, high color saturation, fast reaction and wide viewing angle towards height contrast (high contrast ratio), no GTG and develop for the performance requirement of display panels.At present, the technology that can realize the wide viewing angle requirement has stable twisted nematic (twist nematic, TN) liquid crystal adds view film (wide viewing film), copline switch type (in-plane switching, IPS) display panels, limit switch type (fringe field switching) display panels, multi-domain perpendicular alignment-type (multi-domain vertically alignment, MVA) mode such as display panels.
Known multi-field vertical assigned LCD panel is to utilize the liquid crystal molecule in the zones of different that is configured to make of alignment structure (alignmentstructure) to topple over different angles, and reaches the effect of wide viewing angle.Alignment structure includes orientation projection (alignment protrusion) and is arranged at orientation slit (alignment slit) on the electrode.Yet, the toppling direction often indeterminate (disclination) of orientation projection and orientation slit periphery liquid crystal molecule, and cause the situation of light leak, further make the demonstration contrast of display panels reduce.If cover the situation of light leak and dispose light shield layer corresponding to orientation projection or orientation slit, can make again to show that aperture opening ratio is restricted.Therefore, (Polymer-stablized alignment PSA) is suggested in the orientation mode that forms multi-field orientation a kind of polymer-stabilized alignment, to improve the problem that multi-field vertical assigned LCD panel shows that contrast is not good.
Polymer-stabilized alignment technology must be doped in reactive monomer in the liquid crystal layer earlier, and grants the specific voltage of liquid crystal layer.With light or thermal source irradiating liquid crystal layer, then reactive monomer is assembled to merge and is solidified, to form stabilized zone (stabilizing layer) simultaneously on the substrate of liquid crystal layer both sides under this voltage.Wherein, the molecule of stabilized zone can present specific arrangement mode, helps to make liquid crystal molecule to topple over and arrangement with different directions, and reaches the wide viewing angle display effect.Because the configuration of stabilized zone can not make the phenomenon of display panels generation light leak, thereby the demonstration contrast that helps to improve display panels.It's a pity, tend to produce some defectives in the technical process of polymer-stabilized alignment, and make swinging to of part liquid crystal molecule not meet ideal, therefore still have the needs of further improvement.
Summary of the invention
The present invention provides a kind of dot structure, does not meet desirable problem with the Liquid Crystal Molecules Alignment that solves known polymer-stabilized alignment formula dot structure.
The present invention provides a kind of manufacture method of display panels in addition, meets desirable multiple domain direction matching type liquid crystal display board to make the Liquid Crystal Molecules Alignment direction.
The present invention proposes a kind of dot structure that electrically connects scan line and data wire, and it comprises first pixel electrode of first active element, second active element, electric connection first active element, second pixel electrode and first capacitor lower electrode of electric connection second active element.First active element and second active element all electrically connect scan line and data wire.Many groups first candy strips that first pixel electrode has first cross figure and is connected with first cross figure.Many groups second candy strips that second pixel electrode has second cross figure and is connected with second cross figure.First capacitor lower electrode is positioned at first cross figure below and comprises first area and a plurality of second area.First pixel electrode covers the first area substantially and does not cover a plurality of second areas.The first area is about 10:1～300:1, the preferable 40:1～50:1 that is about with the area ratio of a plurality of second areas.
In an embodiment of the present invention, above-mentioned at least one second area is not overlapping with data wire.
In an embodiment of the present invention, on the bearing of trend of vertical first capacitor lower electrode, the ratio of the width of above-mentioned first area and the width of second area is about 1.01:1～50:1.
In an embodiment of the present invention, dot structure also comprises first electric capacity top electrode and the insulating barrier.The first electric capacity top electrode is between first pixel electrode and first capacitor lower electrode, and insulating barrier is between first capacitor lower electrode and the first electric capacity top electrode.In addition, the first electric capacity top electrode for example has first opening.First opening can be the center that is positioned at first cross figure, to expose the partial insulative layer that is positioned at first capacitor lower electrode top.Furthermore, dot structure also comprises the dielectric layer between first pixel electrode and the first electric capacity top electrode, and wherein first pixel electrode also has second opening, and the position of second opening is overlapped in first opening at least.In addition, second opening for example is greater than first opening.
In an embodiment of the present invention, dot structure also comprises dielectric layer, and between first pixel electrode and first capacitor lower electrode, first pixel electrode also has second opening to expose the part dielectric layer that is positioned at the top, first area.
In an embodiment of the present invention, above-mentioned first pixel electrode also has a plurality of thin slits, and between first cross figure and first candy strip, and carefully an end of slit connects first cross figure, and the other end of thin slit is away from first cross figure.
In an embodiment of the present invention, dot structure also comprises second capacitor lower electrode, is positioned at second cross figure below.In addition, dot structure can also comprise the second electric capacity top electrode, between second pixel electrode and second capacitor lower electrode.
In an embodiment of the present invention, above-mentioned second pixel electrode has a plurality of thin slits, and between second cross figure and second candy strip, and carefully an end of slit connects second cross figure, and the other end of thin slit is away from second cross figure.
The present invention reintroduces a kind of dot structure, and it electrically connects scan line and data wire.This dot structure comprises first pixel electrode of first active element, second active element, electric connection first active element, second pixel electrode, first capacitor lower electrode, insulating barrier and the dielectric layer of electric connection second active element.First active element and second active element all electrically connect scan line and data wire.Many groups first candy strips that first pixel electrode has first cross figure and is connected with first cross figure, and many groups second candy strips that second pixel electrode has second cross figure and is connected with second cross figure.First capacitor lower electrode is positioned at first cross figure below.The first electric capacity top electrode is between first pixel electrode and first capacitor lower electrode.Insulating barrier is between first capacitor lower electrode and the first electric capacity top electrode.Dielectric layer is between the first electric capacity top electrode and first pixel electrode, and wherein the first electric capacity top electrode has first opening, and the center that is positioned at first cross figure is to expose the partial insulative layer that is positioned at first capacitor lower electrode top.
In an embodiment of the present invention, above-mentioned first pixel electrode also has second opening, and the position of second opening is overlapped in first opening at least.In addition, second opening for example is greater than first opening.
In an embodiment of the present invention, above-mentioned first pixel electrode also has a plurality of thin slits, between first cross figure and first candy strip.One end of thin slit connects first cross figure, and the other end of thin slit is away from first cross figure.
In an embodiment of the present invention, dot structure also comprises second capacitor lower electrode that is positioned at second cross figure below.In addition, dot structure also can comprise the second electric capacity top electrode, between second capacitor lower electrode and second pixel electrode.
In an embodiment of the present invention, above-mentioned second pixel electrode has a plurality of thin slits, and between second cross figure and second candy strip, and carefully an end of slit connects second cross figure, and the other end of thin slit is away from second cross figure.
The present invention proposes a kind of dot structure again, and it electrically connects scan line and data wire.Dot structure comprises first pixel electrode of first active element, second active element, electric connection first active element, second pixel electrode, first capacitor lower electrode and the insulating barrier of electric connection second active element.First active element and second active element all electrically connect scan line and data wire, many groups first candy strips that first pixel electrode has first cross figure and is connected with first cross figure.Many groups second candy strips that second pixel electrode has second cross figure and is connected with second cross figure.First capacitor lower electrode is positioned at first cross figure below.Insulating barrier is between first capacitor lower electrode and first pixel electrode, and wherein first pixel electrode also has opening, to expose the partial insulative layer that is positioned at first capacitor lower electrode top.
The present invention also proposes a kind of manufacture method of display panels.At first, provide the display panels semi-finished product.These display panels semi-finished product comprise array base palte, subtend substrate and liquid crystal layer.Comprise a plurality of any one dot structures as described above in Example in the array base palte, subtend substrate and array base palte subtend are provided with.Liquid crystal layer is then between array base palte and subtend substrate, and liquid crystal layer has a plurality of monomers.Then, between array base palte and subtend substrate, produce pressure reduction.Afterwards, polymerization single polymerization monomer.
In an embodiment of the present invention, the above-mentioned step that produces pressure reduction between array base palte and subtend substrate comprises provides earthing potential in the subtend substrate, and provides first voltage in first capacitor lower electrode.Above-mentioned first voltage has positive half cycle signal and negative half-cycle signal, and the peak value of positive half cycle signal and the peak value of negative half-cycle signal differ 10 volts to 100 volts.In addition, pressure reduction is about 5 volts to 50 volts.
In an embodiment of the present invention, the step of above-mentioned polymerization single polymerization monomer comprises photo polymerization monomer, thermal polymerization monomer or combinations thereof.
The present invention makes capacitor lower electrode do not reduced by the region area ratio that other conductor layers cover by the pattern that changes capacitor lower electrode in the dot structure.Therefore, when dot structure of the present invention is applied to polymer-stabilized alignment formula display panels, help to improve the indefinite situation of lqiuid crystal molecule tipping direction.In addition, the present invention forms the opening corresponding to pixel electrode central authorities in also can the conductor layer above capacitor lower electrode, arranges towards correct direction to make liquid crystal molecule in the stabilization of polymer allocating process.
For above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, preferred embodiment cited below particularly, and conjunction with figs. are described in detail below.
Description of drawings
Figure 1A and Figure 1B are depicted as a kind of allocating process of polymer-stabilized alignment formula display panels.
Fig. 2 is depicted as a kind of comparative example that is applied to polymer-stabilized alignment formula liquid crystal display panel pixel structure.
Fig. 3 A is the dot structure of first embodiment of the invention.
Fig. 3 B is depicted as the design of another kind of first capacitor lower electrode in the first embodiment of the invention dot structure.
Fig. 4 A is depicted as the dot structure of the second embodiment of the present invention.
Fig. 4 B is the shown profile of hatching line A-A ' along Fig. 4 A.
Fig. 4 C is depicted as the design of another first capacitor lower electrode of the present invention.
Wherein, description of reference numerals is as follows:
10A, 10B: display panels
20: array base palte
22: pel array
30: the subtend substrate
32: counter electrode
40: liquid crystal layer
42: liquid crystal molecule
44: monomer
46: stabilized zone
50: energy
100,200,300: dot structure
102,202: scan line
104,204: data wire
106,206: the first active elements
108,208: the second active elements
110,210,310: the first pixel electrodes
120,220: the second pixel electrodes
130,230,330: the first capacitor lower electrodes
132,232: the first area
134,234: second area
140,240: the second capacitor lower electrodes
212: the first crossed electrodes
214: the first stripe electrodes
216,316: the second openings
222: the second crossed electrodes
224: the second stripe electrodes
242: the second electric capacity top electrodes
250,350: the first electric capacity top electrodes
252,352: the first openings
360: insulating barrier
370: dielectric layer
A-A ': hatching line
S: thin slit
W1, W2: width
Embodiment
Figure 1A and Figure 1B are depicted as a kind of allocating process of polymer-stabilized alignment formula display panels.At first, please refer to Figure 1A, display panels semi-finished product 10A is provided.Display panels semi-finished product 10A comprises array base palte 20, subtend substrate 30 and liquid crystal layer 40.Array base palte 20 comprises a plurality of pixels 22.Then dispose counter electrode 32 on the subtend substrate 30.In addition, liquid crystal layer 40 comprises a plurality of liquid crystal molecules 42 and a plurality of monomer 44, and wherein monomer 44 can be that photo polymerization monomer also can be thermal polymerization monomer or above-mentioned combination.
Then, please refer to Figure 1B, between array base palte 20 and subtend substrate 30, produce pressure reduction.Specifically, the method that produces this pressure reduction is that the counter electrode 32 of earthing potential in subtend substrate 30 is provided earlier, and provides first voltage on the electrode layer of pel array 22.First voltage has positive half cycle signal and negative half-cycle signal for instance, and the peak value of positive half cycle signal and the peak value of negative half-cycle signal differ 10 volts to 100 volts.In other words, first voltage is alternating voltage, and the forward peak value of this alternating voltage and the difference between reversed peak are 10 volts to 100 volts.In addition, in this step, the pressure reduction between array base palte 20 and the subtend substrate 30 is about 5 volts to 50 volts.This pressure reduction and the ratio regular meeting of first voltage are subjected to the design of storage capacitors and liquid crystal capacitance among the display panels 10B and different variations are arranged.Generally speaking, the magnitude of pressure differential that is applied to this allocating process is about 40～70% of first voltage.
Please continue with reference to Figure 1B, the pressure reduction between array base palte 20 and the subtend substrate 30 produces electric field in liquid crystal layer 40.Liquid crystal molecule 42 will be toppled over arrangement along this direction of an electric field.At this moment, be cured technology (curing process) monomer 44 is solidified, then monomer 44 can form stabilized zone 46 in both sides about in the of 40 at liquid crystal layer.At this, curing process for example provides energy 50 and shines monomer 44 in liquid crystal layer 40, and to form stabilized zone 46, wherein energy 50 can be luminous energy or heat energy.In other words, curing process can be according to the characteristic of monomer 44 molecules, and is chosen as ultraviolet curing process, heat curing process or above-mentioned combination.In the middle of the process that stabilized zone 46 forms, liquid crystal molecule 42 has been subjected to the direction of an electric field influence and has arranged according to specific mode, so stabilized zone 46 also can be formed according to the particular arrangement mode.So, to finish after the polymer-stabilized alignment technology, the arrangement of liquid crystal molecule 42 can be subjected to the influence of stabilized zone 46 and meet designer's demand.That is to say that through behind the above-mentioned allocating process, liquid crystal molecule 42 can present the arrangement mode of multi-field orientation, and helps to promote the demonstration display effect of display panels 10B.
Fig. 2 is depicted as a kind of comparative example that is applied to polymer-stabilized alignment formula liquid crystal display panel pixel structure.Please refer to Fig. 2, dot structure 100 is connected in scan line 102 and data wire 104, and dot structure 100 comprises first active element 106, second active element 108, first pixel electrode 110, second pixel electrode 120, first capacitor lower electrode 130 and second capacitor lower electrode 140.First pixel electrode 110 and second pixel electrode 120 electrically connect first active element 106 and second active element 108 respectively.First capacitor lower electrode 130 and second capacitor lower electrode 140 pass through the center of first pixel electrode 110 and second pixel electrode 120 respectively.First capacitor lower electrode 130 can be divided into first area 132 of being covered by first pixel electrode 110 and a plurality of second areas 134 that do not covered by first pixel electrode.In addition, first pixel electrode 110 and second pixel electrode 120 have a plurality of thin slit S respectively.
Please be simultaneously with reference to Figure 1B and Fig. 2, be disposed at dot structure 100 on the array base palte 20 and carry out polymer-stabilized alignment technology.In this step, first voltage for example is to be input into first capacitor lower electrode 130 and second capacitor lower electrode 140.12 of first pixel electrode 110 and second pixel electrodes respectively and first capacitor lower electrode 130 and 140 of second capacitor lower electrodes be coupled and have coupled voltages.At this moment, thin slit S can influence the electric field in the liquid crystal layer 40, so liquid crystal molecule 42 can be along the direction arrangement of thin slit S, to reach best orientation effect.
Yet in such allocating process, 32 electric fields that produce another different sizes of these second areas 134 meetings and counter electrode that first capacitor lower electrode 130 is not covered by first pixel electrode 110 are that arrange at the center and also may make liquid crystal molecule with it.Thus, in the process that stabilized zone 46 forms, what the liquid crystal molecule 42 of contiguous first capacitor lower electrode 130 can't be certain arranges along desirable direction, and makes the orientation effect of dot structure 100 be affected.Particularly the area of second area 132 is big more, will make that the affected degree of orientation effect of dot structure 100 is more remarkable.Produce for fear of above-mentioned problem, the present invention proposes following several dot structure, yet following enforcement example is not in order to limit the present invention for illustrating only.
[first embodiment]
Fig. 3 A is the dot structure of first embodiment of the invention.Please refer to Fig. 3 A, dot structure 200 comprises first pixel electrode 210 of first active element 206, second active element 208, electric connection first active element 206, second pixel electrode 220 and first capacitor lower electrode 230 of electric connection second active element 208.First active element 206 and second active element 208 all electrically connect scan line 202 and data wire 204.When dot structure 200 is applied to the display panels 10B of Figure 1B, can be with a plurality of dot structure 200 arrayed on array base palte 20 and form pel array 22.
In addition, first pixel electrode 210 many groups first candy strips 214 having first cross figure 212 and be connected with first cross figure 212.Many groups second candy strips 224 that second pixel electrode 220 has second cross figure 222 and is connected with second cross figure 222.First capacitor lower electrode 230 is positioned at first cross figure, 212 belows and comprises first area 232 and a plurality of second area 234, be example with two second areas 234 in the present embodiment, visual process requirements or designer need and form more a plurality of second areas 234, are not limited to the present invention.First pixel electrode 210 covers first area 232 and does not cover second area 234.
Particularly, first pixel electrode 210 also has a plurality of thin slit S between first cross figure 212 and first candy strip 214, and carefully the end of slit S connects first cross figure 212, and the other end of thin slit S is away from first cross figure 212.Similarly, second pixel electrode 220 also has a plurality of thin slit S, and between second cross figure 222 and second candy strip 224, and carefully the end of slit S connects second cross figure 222, and the other end of thin slit S is away from second cross figure 222.
In the present embodiment, data wire 204 is overlapping with first capacitor lower electrode 230 of part, so first capacitor lower electrode, 230 most areas are all covered by other conductor layers.230 of part first capacitor lower electrodes that covered by other conductor layers do not constitute second area 234, that is to say that second area 234 is not overlapping with data wire 204.In the dot structure 200, first area 232 is about 10:1～300:1 with the area ratio of second area 234, the preferable 40:1～50:1 that is about, and the area of all second areas 234 amounts in the cartographic represenation of area dot structure 200 of the second area 234 of the described ratio of the latter.In addition, on the bearing of trend of vertical first capacitor lower electrode 230, the ratio of the Breadth Maximum w1 of first area 232 and the Breadth Maximum w2 of second area 234 approximately can be for greater than 1:1 and less than 50:1, preferably 1.01:1～50:1.
Please be simultaneously with reference to Fig. 2 and Fig. 3 A, in the dot structure 100 of Fig. 2, first area 132 is slightly less than 10:1 approximately with the area ratio of a plurality of second areas 134.Compared to the dot structure 100 of Fig. 2, in the dot structure 200 of present embodiment, the area ratio of second area 234 is less.Therefore, when being applied to the polymer-stabilized alignment technology of Figure 1B if dot structure 200 designs with same size with dot structure 100, the electric field that is produced between second area 234 and the counter electrode 32 is more not remarkable to the influence of liquid crystal molecule 42.It is that arrange at the center that liquid crystal molecule 42 is not easy with second area 234, and can not produce node at second area 234 places.That is to say that liquid crystal molecule 42 can be towards desirable direction, that is the bearing of trend of thin slit S topples over arrangement, and reach good orientation effect.In other words, the dot structure 200 of present embodiment helps to improve the technology qualification rate of polymer-stabilized alignment technology, further to promote the display quality of display panels 10B.
In brief, desire improves the technology qualification rate of stabilization of polymer allocating process, can change the pattern of first capacitor lower electrode 230 so that the area ratio of second area 234 dwindles or make first pixel electrode 210 cover first capacitor lower electrode, 230 more areas.When first capacitor lower electrode 230 is more not little by the area that other conductor layers cover, then in the stabilization of polymer allocating process, stabilized zone 46 can be cured under desirable condition more.At this moment, the quality of display panels 10B will more promote.
Certainly, the capacitor design of dot structure 200 is not to be defined in the shown structure of Fig. 3 A.Fig. 3 B is depicted as the design of another kind of first capacitor lower electrode in the first embodiment of the invention dot structure.Please refer to Fig. 3 B, first area 232 pattern areas can form the pattern near peltate to first pixel electrode, 210 central concentrating.Certainly, the design of first capacitor lower electrode 230 also can have different patterns according to other design requirement in the dot structure 200.Wherein, compare on the bearing of trend of 10:1～300:1 and/or vertical first capacitor lower electrode 230 with the area of a plurality of second areas 234 first area 232, and the ratio of the Breadth Maximum w1 of first area 232 and the Breadth Maximum w2 of second area 234 all helps avoid liquid crystal molecule at 1.01:1～50:1 and swings to the situation that does not meet perfect condition.The area of first area 232 and a plurality of second areas 234 is than the preferable 40:1～50:1 that is about.
[second embodiment]
Fig. 4 A is depicted as the dot structure of the second embodiment of the present invention, and Fig. 4 B is the shown profile of hatching line A-A ' along Fig. 4 A.Please refer to Fig. 4 A and Fig. 4 B, the design of dot structure 300 is similar to the design of dot structure 200, so components identical does not explain in addition at this.Both the difference part are that in the dot structure 300, the first electric capacity top electrode 350 has first opening 352 and first pixel electrode 310 has second opening 316.In addition, the design of first capacitor lower electrode 330 is slightly different with dot structure 200.
From profile, dot structure 300 also comprises insulating barrier 360 and dielectric layer 370.Insulating barrier 360 is between first capacitor lower electrode 330 and the first electric capacity top electrode 350.370 of dielectric layers are between first pixel electrode 310 and the first electric capacity top electrode 350.First opening 352 is to be positioned at the center of first cross figure 212 to expose the partial insulative layer 360 that is positioned at first capacitor lower electrode, 330 tops.The position of second opening 316 then is overlapped in first opening 352 at least, and exposes the part dielectric layer 370 that is positioned at first capacitor lower electrode, 330 tops.In addition, second opening 316 for example is to design demand greater than the size of first opening, 352, the first openings 352 and second opening 316 or shape on process requirements or user to decide, not in order to limit the present invention.
In the capacitor design of present embodiment, first opening 352 and second opening 316 make part first capacitor lower electrode 330 that is positioned at first pixel electrode, 310 central authorities do not covered by other conductor layers.So in polymer-stabilized alignment technology, to help to make liquid crystal molecule be not node and outwards arranged evenly with the center of first pixel electrode 310 for first capacitor lower electrode 330 that is covered by conductor layer and the electric field action between the counter electrode.In other words, the design of dot structure 300 helps auxiliary liquid crystal molecule to topple over towards desirable direction.
In addition, when not disposing the first electric capacity top electrode 350 in the dot structure 300, dot structure 300 is also configurable dielectric layer 370, between first pixel electrode 310 and first capacitor lower electrode 330.Simultaneously, first pixel electrode 310 still can have second opening 316 that is positioned at first pixel electrode, 310 centers.So, when carrying out polymer-stabilized alignment technology, liquid crystal molecule can be that node is arranged with first pixel electrode, 310 centers also, and presents desirable orientation situation.That is to say, no matter whether the configuration of the first electric capacity top electrode 350, the present invention all can be by forming opening in the conductive layer above first capacitor lower electrode 330 so that the 330 not cresteds of part first capacitor lower electrode, and improve the qualification rate of stabilization of polymer allocating process and the quality of using the display panels of dot structure 300.Certainly, in other embodiments, second capacitor lower electrode 240, the second electric capacity top electrode 242 and second pixel electrode 220 also can have the design as Fig. 4 A.In addition, the described first electric capacity top electrode 250 of first embodiment and first pixel electrode 210 also can be shown in Fig. 4 C and have the design of first opening 252 and second opening 216 respectively, with the arrangement orientation of liquid crystal molecule in the auxiliary display panels.
In sum, pattern change by capacitor lower electrode is not dwindled capacitance electrode in the dot structure of the present invention by the region area that other conductor layers cover.So, when dot structure of the present invention is applied to the polymer-stabilized alignment technology of display panels, help to make liquid crystal molecule to arrange towards desirable direction.In addition, the present invention also proposes to form in the conductor layer opening that is positioned at the first pixel electrode central authorities above first capacitor lower electrode of dot structure.At this moment, be positioned at the first pixel electrode centre, first capacitor lower electrode is not covered by other conductor layers, and helps to make in polymer-stabilized alignment technology liquid crystal molecule to topple over along desirable direction.Generally speaking, dot structure of the present invention can make the allocating process qualification rate of display panels improve, with the display effect of further lifting display panels.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; those of ordinary skill under any in the technical field; 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 claim defined of enclosing.
Claims (13)
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| CN101726954B (en) * | 2009-12-21 | 2011-11-16 | 友达光电股份有限公司 | Pixel structure |
| TWI398711B (en) | 2009-12-22 | 2013-06-11 | Au Optronics Corp | Pixel structure and display panel |
| CN102566161B (en) * | 2010-01-05 | 2014-09-10 | 友达光电股份有限公司 | Pixel structure and display panel |
| TWI432856B (en) * | 2010-12-07 | 2014-04-01 | Au Optronics Corp | Pixel structure |
| TWI790799B (en) | 2021-11-01 | 2023-01-21 | 友達光電股份有限公司 | Display device |
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| CN1452003A (en) * | 2002-04-15 | 2003-10-29 | 富士通显示技术株式会社 | Substrate for liquid crystal display and liquid crystal display device with same |
| CN1737673A (en) * | 2002-04-15 | 2006-02-22 | 夏普株式会社 | Substrate for liquid crystal display and liquid crystal display device having same |
| CN1877431A (en) * | 2005-06-06 | 2006-12-13 | 中华映管股份有限公司 | Multi-area vertical alignment liquid crystal display panel and its thin film transistor array |
| US20070008444A1 (en) * | 2005-03-29 | 2007-01-11 | Yohei Nakanishi | Liquid crystal display device |
| CN1912696A (en) * | 2006-08-28 | 2007-02-14 | 友达光电股份有限公司 | Multi-zone Vertical Alignment Liquid Crystal Display Panel |
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|---|---|---|---|---|
| CN1452003A (en) * | 2002-04-15 | 2003-10-29 | 富士通显示技术株式会社 | Substrate for liquid crystal display and liquid crystal display device with same |
| CN1737673A (en) * | 2002-04-15 | 2006-02-22 | 夏普株式会社 | Substrate for liquid crystal display and liquid crystal display device having same |
| US20070008444A1 (en) * | 2005-03-29 | 2007-01-11 | Yohei Nakanishi | Liquid crystal display device |
| CN1877431A (en) * | 2005-06-06 | 2006-12-13 | 中华映管股份有限公司 | Multi-area vertical alignment liquid crystal display panel and its thin film transistor array |
| CN1912696A (en) * | 2006-08-28 | 2007-02-14 | 友达光电股份有限公司 | Multi-zone Vertical Alignment Liquid Crystal Display Panel |
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