CN102479792A - Pixel array substrate and liquid display device - Google Patents
Pixel array substrate and liquid display device Download PDFInfo
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- CN102479792A CN102479792A CN2010105739026A CN201010573902A CN102479792A CN 102479792 A CN102479792 A CN 102479792A CN 2010105739026 A CN2010105739026 A CN 2010105739026A CN 201010573902 A CN201010573902 A CN 201010573902A CN 102479792 A CN102479792 A CN 102479792A
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Abstract
The invention discloses a pixel array substrate and a liquid display device. The liquid display device comprises the pixel array substrate, an opposite substrate and a liquid crystal layer. The liquid crystal layer is placed between the pixel array substrate and the opposite substrate. The pixel array substrate is provided with a plurality of pixel electrodes. Each pixel electrode is provided with a first trunk, a second trunk, a plurality of first branches and a plurality of second branches. The first trunk and the second trunk are substantially and vertically connected with each other, and a first quartile, a second quartile, a third quartile and a fourth quartile are sequentially defined in the first trunk and the second trunk. Each first branch is connected with the first truck or the second truck. Azimuth angles of the first branches in the same quartile are substantially the same. Each second branch is connected with the plurality of the first branches. Each quartile is provided with at least one second branch.
Description
Technical field
The invention relates to a kind of substrate and display unit, and particularly relevant for a kind of image element array substrates and liquid crystal indicator.
Background technology
To improving rapidly of multimedia society, be indebted to the tremendous progress of semiconductor element or display unit mostly.With regard to display unit; Have that high image quality, space utilization efficient are good, (Thin Film Transistor Liquid Crystal Display TFT-LCD) becomes the main flow in market to the thin-film transistor LCD device of low consumpting power, advantageous characteristic such as radiationless gradually.
Recently, the pixel electrode of part liquid crystal indicator can be designed to M shape, like Fig. 1.Yet because the width of the each several part of pixel electrode 100 has only 3 microns to 5 microns usually, in case arbitrary broken string place (like R12 and R14) is arranged, will cause pixel electrode 100 to be in the part 110 of floating state can't swinging to of standard liquid crystal molecule and produce defective.In addition, experiment is found, adopts the liquid crystal indicator of the pixel electrode 100 of M shape still to have the lower problem of light transmittance, causes the contrast of picture to promote.
Summary of the invention
The present invention provides a kind of image element array substrates, the bad defective that can reduce in the manufacture process to be produced and cause the subregion of pixel electrode to be in the probability of floating state.
The present invention provides a kind of liquid crystal indicator, the lower problem of light transmittance in the time of can solving the pixel electrode that adopts M shape.
Image element array substrates of the present invention has a plurality of pixel electrodes.Each pixel electrode has one first trunk, one second trunk, a plurality of first branch and a plurality of second branch.First trunk and second trunk be orthogonal connection and define a first quartile, one second quadrant, a third quadrant and a four-quadrant in regular turn in fact.Each first branch connects first trunk or second trunk.The azimuth of first branch that is positioned at same quadrant is identical in fact.Each second branch connects a plurality of first branches.All quadrants has at least one second branch.
Liquid crystal indicator of the present invention comprises aforesaid image element array substrates, a subtend substrate and a liquid crystal layer.
In one embodiment of this invention; The azimuth of first branch of first quartile is between between 40 degree to 50 degree; The azimuth of first branch of second quadrant is between between 130 degree to 140 degree; The azimuth of first branch of third quadrant is between between 220 degree to 230 degree, and the azimuth of four-quadrant first branch is between between 310 degree to 320 degree.
In one embodiment of this invention, second branch of all quadrants is connected with first branch of all quadrants is vertical in fact.
In one embodiment of this invention, all quadrants has a plurality of second branches, and the azimuth of second branch that is positioned at same quadrant is identical in fact.In addition, the spacing between second branch of same quadrant for example is 10 microns.
In one embodiment of this invention, the distance of the same side that is positioned at two adjacent first branches of same quadrant is 5 microns to 7 microns.
In one embodiment of this invention, the width of each first branch is 2 microns to 3.5 microns.
In one embodiment of this invention, the width of each second branch is 2 microns to 10 microns.
In one embodiment of this invention, each pixel electrode has more a housing, and housing is around around each pixel electrode and connect first trunk, second trunk and first branch.
In one embodiment of this invention, liquid crystal indicator more comprises a backlight module, and image element array substrates and subtend substrate are disposed on the backlight module.
Based on above-mentioned, in image element array substrates of the present invention and liquid crystal indicator, the subregion of the design of second branch reduction pixel electrode is in the probability of floating state, also promotes the contrast of display frame.
Description of drawings
For let above-mentioned purpose of the present invention, feature and advantage can be more obviously understandable, elaborate below in conjunction with the accompanying drawing specific embodiments of the invention, wherein:
Fig. 1 looks sketch map on the part of known image element array substrates.
Fig. 2 is the partial cutaway diagrammatic sketch of the liquid crystal indicator of one embodiment of the invention.
Fig. 3 looks sketch map on the part for the image element array substrates of the liquid crystal indicator of Fig. 2.
Fig. 4 looks sketch map on the part of image element array substrates of another embodiment of the present invention.
The main element symbol description:
100: pixel electrode
110: pixel electrode is in the part of floating state
R12, R14: broken string place
1000: liquid crystal indicator
1100,2100: image element array substrates
1110,2110: pixel electrode
1130: scan line
1140: data wire
1150: active element
1190: both alignment layers
1200: the subtend substrate
1210: common electrode
1220: both alignment layers
1300: liquid crystal layer
1306: liquid crystal is stablized polymeric layer
1400: chromatic filter layer
1410: black matrix
1420: color filter film
1500: backlight module
1610,1620: polarizer
B110, B210: first trunk
B120, B220: second trunk
B130, B230: first branch
B140, B240: second branch
B250: housing
D1, D2: penetrating shaft
G12: spacing
G14: distance
G16, G18: width
I: first quartile
II: second quadrant
III: third quadrant
IV: four-quadrant
Embodiment
Fig. 2 is the partial cutaway diagrammatic sketch of the liquid crystal indicator of one embodiment of the invention.Please with reference to Fig. 2, the liquid crystal indicator 1000 of present embodiment comprises an image element array substrates 1100, a subtend substrate 1200 and a liquid crystal layer 1300.Image element array substrates 1100 has a plurality of pixel electrodes 1110, and Fig. 2 part omitted is represented a plurality of pixel electrodes 1110 with individual layer.Subtend substrate 1200 has having altogether with electrode 1210 of pixel-oriented array base palte 1100.In addition, a configurable both alignment layers 1190 on the image element array substrates 1100 of present embodiment, and a configurable both alignment layers 1220 on the subtend substrate 1200.Both alignment layers 1220 covers common electrodes 1210 and near liquid crystal layer 1300, and both alignment layers 1190 covers pixel electrodes 1110 and near liquid crystal layer 1300.Liquid crystal layer 1300 is disposed between the common electrode 1210 of pixel electrode 1110 and subtend substrate 1200 of image element array substrates 1100.If liquid crystal indicator 1000 adopts penetration or semi-penetration, semi-reflective design, then can more comprise a backlight module 1500 so that area source to be provided, and image element array substrates 1100 is disposed on the backlight module 1500 with subtend substrate 1200.
In addition, liquid crystal indicator 1000 can more comprise a chromatic filter layer 1400.Chromatic filter layer 1400 can comprise a black matrix 1410 and a plurality of color filter films 1420.Adjacent black matrix 1410 has opening and can ccontaining color filter film 1420.The chromatic filter layer 1400 of present embodiment is to be example to be disposed at image element array substrates 1100, but chromatic filter layer 1400 is also configurable in subtend substrate 1200, and is positioned at 1210 of subtend substrate 1200 and common electrodes.
The liquid crystal indicator 1000 of present embodiment comprises that more two liquid crystal stablize polymeric layer 1306, is formed on common electrode 1210 and the pixel electrode 1110 and contact liquid crystal layer 1300.Yet liquid crystal indicator 1000 also can only have a liquid crystal to stablize polymeric layer 1306, and configurable on common electrode 1210 or pixel electrode 1110.
When the formation liquid crystal is stablized polymeric layer 1306; The a plurality of reactive group monomers (not illustrating) that can in liquid crystal layer 1300, mix equably earlier, these reactive group monomers can form liquid crystal after via aggregation processing stablize the surface of polymeric layer 1306 in image element array substrates 1100 and/or subtend substrate 1200.In the process of aggregation processing; Can apply electric field in liquid crystal layer 1300 via pixel electrode 1110 and common electrode 1210; So that the liquid crystal molecule of liquid crystal layer 1300 is accordinged to the electric field that is produced and toppled over, utilize irradiation ultraviolet radiation, heating or other suitable modes to make the reactive group monomer polymerization stablize polymeric layer 1306 simultaneously for liquid crystal.Wherein, the mode of polymerization reaction base monomer is to decide according to the material behavior of employed reactive group monomer.Dump angle when thus, near the liquid crystal molecule the reactive group monomer after the polymerization will remain on the reactive group monomer polymerization.Liquid crystal is stablized polymeric layer 1306 and is helped to increase both alignment layers 1220 and the anchorage force of both alignment layers 1190 for the liquid crystal molecule of liquid crystal layer 1300, so but the toppling direction of stabilizing liquid crystal molecule, and the reaction speed of lifting liquid crystal molecule.Whereby, can not need on the common electrode 1210 form any pattern but cover on the subtend substrate 1200 comprehensively.So, liquid crystal indicator 1000 can have higher penetrance, and has faster reaction speed to improve ghost phenomena.
The liquid crystal indicator 1000 of present embodiment also more comprises a polarizer 1610 and a polarizer 1620.Polarizer 1610 is disposed on the surface of subtend substrate 1200 away from liquid crystal layer 1300, that is polarizer 1610 lays respectively on two apparent surfaces of subtend substrate 1200 with liquid crystal layer 1300.Polarizer 1620 is disposed at the surface of image element array substrates 1100 away from liquid crystal layer 1300, that is polarizer 1620 lays respectively on two apparent surfaces of image element array substrates 1100 with liquid crystal layer 1300.Polarizer 1610 all is a linear polarizer for example with polarizer 1620, respectively have penetrating shaft and optionally let light pass through polarizer, and configuration mode is to let both penetrating shaft mutually orthogonal.Perhaps, polarizer 1610 can all be a circular polarizing disk also with polarizer 1620.
Fig. 3 looks sketch map on the part for the image element array substrates of the liquid crystal indicator of Fig. 2.Please with reference to Fig. 3, each pixel electrode 1110 of image element array substrates 1100 has one first trunk B110, the second trunk B120, a plurality of first B130 of branch and a plurality of second B140 of branch.Each first B130 of branch connects the first trunk B110 or the second trunk B120.The first trunk B110 and the second trunk B120 be orthogonal connection and define four quadrants such as first quartile I, the second quadrant II, third quadrant III and four-quadrant IV in fact.The pattern that the first trunk B110 of each pixel electrode 1110, the second trunk B120 and first B130 of branch are constituted roughly is M shape.With the second trunk B120 is benchmark, and the azimuth of first B130 of branch of all quadrants is roughly the same.First B130 of branch roughly is that the plotted point by the first trunk B110 and the second trunk B120 outwards is radial.Each second B140 of branch connects a plurality of first B130 of branch, and each quadrant has at least one second B140 of branch.In addition, D1 is the penetrating shaft direction of the polarizer 1610 of Fig. 2, and D2 is the penetrating shaft direction of the polarizer 1620 of Fig. 2, and both mutually orthogonals define 0 degree and 90 degree respectively.
Because second B140 of branch has connected a plurality of first B130 of branch, even therefore pixel electrode 1110 breaks in technology, the part arround also mostly can will breaking via second B140 of branch connects.Thus, significantly having reduced pixel electrode 1110 has the subregion to be in the probability of floating state because technology is bad, meets the requirements and better display quality is provided with the arrangement of guaranteeing liquid crystal molecule.In addition, also find via experiment, increased by being provided with of second B140 of branch after, pixel electrode 1110 can provide liquid crystal molecule better standard power, and then promotes light transmittance and improve the contrast of display frame.
Please refer again to Fig. 3, the image element array substrates 1100 of present embodiment can have more multi-strip scanning line 1130, many data wires 1140 and a plurality of active element 1150, is example but only illustrate a scan line 1130 among Fig. 3.Each active element 1150 is driven by corresponding scanning line 1130.Each pixel electrode 1110 electrically connects corresponding active element 1150, to receive the signal that corresponding data line 1140 is transmitted.The material of the pixel electrode 1110 of present embodiment is to adopt the electrically conducting transparent material, for example indium tin oxide (ITO) or indium-zinc oxide (IZO), but be not limited to this.When the material of pixel electrode 1110 adopts indium-zinc oxide (IZO), obtain thinner live width easily.
In one embodiment of this invention, the azimuth of first B130 of branch of all quadrants is 45 degree, 135 degree, 225 degree and 315 degree with respect to the second trunk B120 in regular turn.The setting of penetrating shaft D2 of penetrating shaft D1 and the Polarizer 1620 of Polarizer 1610 is depended at the azimuth of first B130 of branch of all quadrants, is preferably 45 degree of being separated by with each penetrating shaft D1 or D2.Second B140 of branch of all quadrants then is connected with first B130 of branch of all quadrants, preferable then with vertical connection of the B130 of this first branch, so the azimuth of second B140 of branch of all quadrants is 135 degree, 45 degree, 315 degree and 225 degree in regular turn, but be not limited to this.It should be noted that the certain error amount of azimuth tolerable of indication here, this error amount for example be ± 5 degree, preferred values be ± 1.5 to spend.First B130 of branch with first quartile I is an example, and its azimuth can be between between 40 degree to 50 degree; The azimuth of first B130 of branch of the second quadrant II can be between between 130 degree to 140 degree; The azimuth of first B130 of branch of third quadrant III can be between between 220 degree to 230 degree; The azimuth of first B130 of branch of four-quadrant IV can be between between 310 degree to 320 degree.In addition, the azimuth of each first B130 of branch and each second B140 of branch fully according to scale, only is not used for the summary pattern of remarked pixel electrode 1110 among Fig. 3.
Fig. 4 looks sketch map on the part of image element array substrates of another embodiment of the present invention.Please with reference to Fig. 4, the image element array substrates 2100 of present embodiment is similar with the image element array substrates 1100 of Fig. 3, omits its introduction that exists together mutually at this.Each pixel electrode 2110 of the image element array substrates 2100 of present embodiment has one first trunk B210, the second trunk B220, a plurality of first B230 of branch, a plurality of second B240 of branch and a housing B250.Housing B250 is around around the pixel electrode 2110, and connects the first trunk B210, the second trunk B220, first B230 of branch and at least one second B240 of branch.In other embodiments, if second B240 of branch do not extend to pixel electrode 2110 around, then housing B250 does not connect second B240 of branch.Each quadrant all has a plurality of second B240 of branch, and it is identical in fact to be positioned at the azimuth of second B240 of branch of same quadrant.
By quantity that increases by second B240 of branch and increase housing B250; Image element array substrates 2100 has further reduced again makes pixel electrode 2110 have the subregion to be in the probability of floating state because technology is bad; Also provide liquid crystal molecule better standard power, and then promote light transmittance and improve the contrast of display frame.
The various sizes of the pixel electrode 2110 of present embodiment below are described, but the present invention is not limited thereto.Spacing G12 between second B240 of branch of same quadrant for example is 10 microns.Be positioned at same quadrant two adjacent first B230 of branch the same side be 5 microns to 7 microns apart from G14.The width G 16 of each first B230 of branch is 2 microns to 3.5 microns.The width G 18 of each second B240 of branch is 2 microns to 10 microns, and preferred values is 5 microns.
In sum; In image element array substrates of the present invention and liquid crystal indicator; Utilize second branch to connect a plurality of first branches, can reduce broken string and cause the subregion of pixel electrode to be in the probability of floating state, the better standard power of liquid crystal molecule also can be provided and promote the contrast of picture.
Though the present invention discloses as above with preferred embodiment; Right its is not that any those skilled in the art are not breaking away from the spirit and scope of the present invention in order to qualification the present invention; When can doing a little modification and perfect, so protection scope of the present invention is when being as the criterion with what claims defined.
Claims (19)
1. an image element array substrates has a plurality of pixel electrodes, it is characterized in that, respectively this pixel electrode has:
One first trunk;
One second trunk, wherein this first trunk and this second trunk orthogonal connection and define a first quartile, one second quadrant, a third quadrant and a four-quadrant in regular turn in fact;
A plurality of first branches, wherein each first branch connects this first trunk or this second trunk, and the azimuth of said first branch that is positioned at same quadrant is identical in fact; And
A plurality of second branches, wherein each second branch connects a plurality of said first branches, and all quadrants has at least one said second branch.
2. image element array substrates as claimed in claim 1; It is characterized in that; The azimuth of said first branch of this first quartile is between between 40 degree to 50 degree; The azimuth of said first branch of this second quadrant is between between 130 degree to 140 degree, and the azimuth of said first branch of this third quadrant is between between 220 degree to 230 degree, and the azimuth of this four-quadrant said first branch is between between 310 degree to 320 degree.
3. image element array substrates as claimed in claim 1 is characterized in that, vertical in fact connection of said first branch of this of all quadrants second branch and all quadrants.
4. image element array substrates as claimed in claim 1 is characterized in that, all quadrants has a plurality of said second branches, and the azimuth of said second branch that is positioned at same quadrant is identical in fact.
5. image element array substrates as claimed in claim 4 is characterized in that, the spacing between said second branch of same quadrant is 10 microns.
6. image element array substrates as claimed in claim 1 is characterized in that, the distance of the same side that is positioned at two adjacent first branches of same quadrant is 5 microns to 7 microns.
7. image element array substrates as claimed in claim 1 is characterized in that, the width of each first branch is 2 microns to 3.5 microns.
8. image element array substrates as claimed in claim 1 is characterized in that, the width of each second branch is 2 microns to 10 microns.
9. image element array substrates as claimed in claim 1 is characterized in that each pixel electrode has more a housing, and this housing is around around each pixel electrode and connect this first trunk, this second trunk and said first branch.
10. a liquid crystal indicator comprises an image element array substrates, a subtend substrate and a liquid crystal layer, wherein:
This image element array substrates has a plurality of pixel electrodes, and wherein each pixel electrode has:
One first trunk;
One second trunk, wherein this first trunk and this second trunk orthogonal connection and define a first quartile, one second quadrant, a third quadrant and a four-quadrant in regular turn in fact;
A plurality of first branches, wherein each first branch connects this first trunk or this second trunk, and the azimuth of said first branch that is positioned at same quadrant is identical in fact; And
A plurality of second branches, wherein each second branch connects a plurality of said first branches, and all quadrants has at least one said second branch;
This liquid crystal layer is disposed between this image element array substrates and this subtend substrate.
11. liquid crystal indicator as claimed in claim 10; It is characterized in that; The azimuth of said first branch of this first quartile is spent to 50 between 40; The azimuth of said first branch of this second quadrant is between between 130 degree to 140 degree, and the azimuth of said first branch of this third quadrant is between between 220 degree to 230 degree, and the azimuth of this four-quadrant said first branch is between between 310 degree to 320 degree.
12. liquid crystal indicator as claimed in claim 10 is characterized in that, vertical in fact connection of said first branch of this of all quadrants second branch and all quadrants.
13. liquid crystal indicator as claimed in claim 10 is characterized in that, all quadrants has a plurality of said second branches, and the azimuth of said second branch that is positioned at same quadrant is identical in fact.
14. liquid crystal indicator as claimed in claim 13 is characterized in that, be positioned at same quadrant said second branch between spacing be 10 microns.
15. liquid crystal indicator as claimed in claim 10 is characterized in that, the distance of the same side that is positioned at two adjacent first branches of same quadrant is 5 microns to 7 microns.
16. liquid crystal indicator as claimed in claim 10 is characterized in that, the width of each first branch is 2 microns to 3.5 microns.
17. liquid crystal indicator as claimed in claim 10 is characterized in that, the width of each second branch is 2 microns to 10 microns.
18. liquid crystal indicator as claimed in claim 10 is characterized in that, each pixel electrode has more a housing, and this housing is around around each pixel electrode and connect this first trunk, this second trunk and said first branch.
19. liquid crystal indicator as claimed in claim 10 is characterized in that, more comprise a backlight module, and this image element array substrates and this subtend substrate is disposed on this backlight module.
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| CN201010573902.6A CN102479792B (en) | 2010-11-22 | 2010-11-22 | Pixel array substrate and liquid display device |
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|---|---|---|---|
| CN201010573902.6A CN102479792B (en) | 2010-11-22 | 2010-11-22 | Pixel array substrate and liquid display device |
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| CN102479792A true CN102479792A (en) | 2012-05-30 |
| CN102479792B CN102479792B (en) | 2014-02-19 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105425450A (en) * | 2014-09-22 | 2016-03-23 | 群创光电股份有限公司 | Display panel |
| CN107272272A (en) * | 2016-04-08 | 2017-10-20 | 三星显示有限公司 | Liquid crystal display device |
| CN110119051A (en) * | 2018-02-05 | 2019-08-13 | 三星显示有限公司 | Show equipment |
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| US20100053528A1 (en) * | 2008-08-27 | 2010-03-04 | Samsung Electronics Co., Ltd. | Display substrate, liquid crystal display panel having the same, and method of manufacturing the liquid crystal display panel |
| US20100091232A1 (en) * | 2007-09-28 | 2010-04-15 | Au Optronics Corporation | 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 |
| US20060146243A1 (en) * | 2005-01-06 | 2006-07-06 | Fujitsu Display Technologies Corporation. | Liquid crystal display device |
| US20100091232A1 (en) * | 2007-09-28 | 2010-04-15 | Au Optronics Corporation | Liquid crystal display panel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105425450A (en) * | 2014-09-22 | 2016-03-23 | 群创光电股份有限公司 | Display panel |
| CN105425450B (en) * | 2014-09-22 | 2018-12-21 | 群创光电股份有限公司 | Display panel |
| CN107272272A (en) * | 2016-04-08 | 2017-10-20 | 三星显示有限公司 | Liquid crystal display device |
| CN107272272B (en) * | 2016-04-08 | 2021-10-26 | 三星显示有限公司 | Liquid crystal display device having a plurality of pixel electrodes |
| CN110119051A (en) * | 2018-02-05 | 2019-08-13 | 三星显示有限公司 | Show equipment |
| CN110119051B (en) * | 2018-02-05 | 2023-02-28 | 三星显示有限公司 | Display device |
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| CN102479792B (en) | 2014-02-19 |
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Address after: Taiwan, China 350 Hsinchu science and Technology Industrial Park, Miaoli County, Southern Town, science Road, No. 160 Applicant after: Innolux Display Group Applicant after: Qunkang Technology (Shenzhen) Co., Ltd. Address before: Taiwan, China 350 Hsinchu science and Technology Industrial Park, Miaoli County, Southern Town, science Road, No. 160 Applicant before: Chimei Optoelectronics Co., Ltd. Applicant before: Qunkang Technology (Shenzhen) Co., Ltd. |
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