CN100414407C - Switching liquid-crystal display device in plane - Google Patents
Switching liquid-crystal display device in plane Download PDFInfo
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- CN100414407C CN100414407C CNB2004100523848A CN200410052384A CN100414407C CN 100414407 C CN100414407 C CN 100414407C CN B2004100523848 A CNB2004100523848 A CN B2004100523848A CN 200410052384 A CN200410052384 A CN 200410052384A CN 100414407 C CN100414407 C CN 100414407C
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 81
- 238000005452 bending Methods 0.000 claims abstract description 31
- 230000001154 acute effect Effects 0.000 claims description 7
- 230000002159 abnormal effect Effects 0.000 abstract description 2
- 230000005684 electric field Effects 0.000 description 40
- 238000010586 diagram Methods 0.000 description 13
- 239000000758 substrate Substances 0.000 description 9
- 230000002950 deficient Effects 0.000 description 4
- 239000010409 thin film Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- MRNHPUHPBOKKQT-UHFFFAOYSA-N indium;tin;hydrate Chemical compound O.[In].[Sn] MRNHPUHPBOKKQT-UHFFFAOYSA-N 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The present invention relates to a flat inside switching type liquid crystal display device which comprises a pixel electrode and a common electrode, wherein the pixel electrode comprises a bottom end of the pixel electrode and a bending section of the pixel electrode, and the common electrode comprises a bottom end of the common electrode and a bending section of the common electrode. The bending sections of the two electrodes present a smooth curve shape respectively and are alternatively arranged. Between the bending sections, the deflection direction of the liquid crystal molecule continuously changes, and the deflection direction of the liquid crystal molecule continuously changes near the junction of the bending section of the pixel electrode and the bottom end of the pixel electrode. The present invention eliminates the abnormal phenomenon of liquid crystal deflection on the tail end of the electrode and increases the brightness.
Description
[technical field]
The invention relates to a kind of liquid crystal indicator, particularly about a kind of plane inner switching type (In-Plane Switching, IPS) liquid crystal indicator.
[background technology]
Liquid crystal indicator is a kind of in the flat display apparatus, through development in decades, not only is used widely in the notebook field, also occupies increasing share in fields such as monitor and TVs.
In order to overcome the little defective in the visual angle of liquid crystal indicator in the prior art, many companies all develop relevant wide viewing angle technology, and the in-plane technology of changing is exactly wherein have much advantage a kind of.
Please refer to Fig. 1, be a pixel region P of the plane inner switching type liquid crystal displaying apparatus 1 of prior art, it comprises data line 115, gate line 113 with data line 115 approximate vertical, concentric line 135 with data line 115 almost parallels, thin film transistor (TFT) (ThinFilm Transistor, TFT) 120, public electrode 133 and pixel electrode 131.This public electrode 133 comprises public electrode bending end 133a and public electrode bottom 133b, and this pixel electrode 131 comprises pixel electrode bending end 131a and pixel electrode bottom 131b.This public electrode 133 is connected with this concentric line 135, and this pixel electrode bending end 131a and public electrode bending end 133a are parallel to each other and are staggered, and becomes the folding bar shaped.This thin film transistor (TFT) 120 is arranged on this data line 115 and these gate line 113 intersections, and it comprises grid (not indicating), source electrode (not indicating), the drain electrode (not indicating) that is connected with gate line 113, data line 115 and pixel electrode 131 respectively.
With reference to figure 2, be the enlarged drawing in II shown in Figure 1 district.Because this pixel electrode bending end 131a and public electrode bending end 133a are broken line shape, when making alive, produce a pair of territory electric field between the two, liquid crystal molecule 130 is along both direction deflection under this electric field action, make this pixel on display effect, be divided into two zones, when watching than vergence direction, the aberration that this two zone causes can compensate mutually.But in the bending place of broken line, direction of an electric field is two direction of an electric field stacks, and liquid crystal molecule 130 yawing moments at this place are uncertain, and normally deflection makes light normally not pass through, and causes this plane inner switching type liquid crystal displaying apparatus 1 briliancy to reduce.
Fig. 3 is the liquid crystal deflecting element synoptic diagram in III shown in Figure 1 district.Public electrode bending end 133a and pixel electrode bottom 131b be by same material constitute and near the time can not short circuit, therefore, must leave the space between public electrode bending end 133a tail end and the pixel electrode bottom 131b and between pixel electrode bending end 131a tail end and the public electrode bottom 133b.When applying voltage, be different from electric field 140a, the 140b direction that is distributed in the pixel middle part in the direction of electric field 141a, 141b between public electrode bending end 133a tail end and the pixel electrode bottom 131b and the electric field between pixel electrode bending end 131a tail end and the public electrode bottom 133b (figure does not show) direction.
Because liquid crystal molecule has towards the trend of the less direction rotation of angle between the major axis of liquid crystal molecule and direction of an electric field, therefore all liquid crystal molecule 130c that are in the pixel middle part have the trend of deflection in the same direction, and be between public electrode kink 133a tail end and the pixel electrode bottom 131b and the liquid crystal molecule 130a of corner between pixel electrode kink 131a tail end and the public electrode bottom 133b, 130b is towards relative direction deflection (shown in Fig. 3 filled arrows), promptly be somebody's turn to do the liquid crystal molecule 130a at place, 130b is different with the liquid crystal molecule 130c yawing moment at pixel middle part, transmissison characteristic is also different, so blanking bar appears in this corner region.
In sum, the plane inner switching type liquid crystal displaying apparatus 1 of this bending shape electrode structure has bending part shown in Figure 2 and corner region two place's defectives shown in Figure 3.
For overcoming above-mentioned defective, industry is improved electrode structure, sees also Fig. 4 to Fig. 6.Fig. 4 is the electrode structure synoptic diagram of improved plane inner switching type liquid crystal displaying apparatus 2.This pixel electrode 233 comprises pixel electrode bottom 233b and pixel electrode curved end 233a, and this public electrode 243 comprises public electrode bottom 243b and public electrode curved end 243a.This pixel electrode curved end 233a and public electrode curved end 243a are shaped as waveform, and the direction of an electric field of Xing Chenging is to change continuously therebetween, i.e. continuous domain, so this structure can be referred to as the continuous domain structure.This kind electrode structure has overcome that liquid crystal molecule causes the low phenomenon of briliancy in the undesired deflection of bending part in the bending shape electrode structure shown in Figure 2.
Fig. 5 is electric field and a liquid crystal deflecting element synoptic diagram when applying voltage shown in the V district among Fig. 4.Pixel electrode curved end 233a is parallel with public electrode curved end 243a.When applying voltage, pixel electrode 233 and public electrode 243 produce an electric field 290.Rotate torsional deformation in the sharp angle that this public electrode bottom 243b is become with public electrode curved end 243a tail end with the obtuse angles beta electric field appearance on every side that this pixel electrode curved end 233a tail end is become with public electrode bottom 243b this moment.Be in the liquid crystal molecule 230a clockwise direction rotation in the parallel electric field zone when applying voltage, and the liquid crystal molecule 230b inhour that is in the distortion electric field region is rotated, the orientation of the liquid crystal in promptly being in parallel electric field and twisting electric field is different, the distortion electric field region produces blanking bar thus, causes that aperture opening ratio reduces.These defectives also can influence the response characteristic of liquid crystal layer, make the viewing area remaining image occur.
Fig. 6 is the optical effect figure of the crooked shape electrode structure of this kind when applying voltage.Four bright area are depicted as liquid crystal layer among this figure, have a bright line p respectively between the first clear zone a1 and the second clear zone a2 and between the 3rd clear zone a3 and the 4th clear zone a4, are pixel electrodes; Having a concealed wire c between the second clear zone a2 and the 3rd clear zone a3, is public electrode.See also Fig. 4 to Fig. 6, two interior parts of broken circle frame are the dark space that electrode end edge region place forms among this Fig. 6.Light transmission rate that should the zone when as can be seen, applying voltage descends.
In sum, the plane inner switching type liquid crystal displaying apparatus 2 of the crooked shape electrode structure of this kind has solved the abnormal problem of electrode kink liquid crystal deflecting element in the plane inner switching type liquid crystal displaying apparatus 1 that bends the shape electrode structure, but the distortion electric field problem that occurs for the electrode tail end not can solve yet.
[summary of the invention]
Cause the low problem of briliancy for the distortion electric field appears in the electrode tail end that overcomes the prior art plane inner switching type liquid crystal displaying apparatus, the invention provides the higher plane inner switching type liquid crystal displaying apparatus of a kind of briliancy.
The technical scheme that technical solution problem of the present invention is adopted is: a plane inner switching type liquid crystal displaying apparatus is provided, it comprises a pixel electrode and a public electrode, this pixel electrode comprises pixel electrode bottom and pixel electrode bend, this public electrode comprises public electrode bottom and public electrode bend, the smooth curve that this two electrode bendings portion is made up of at least two arcuate structures, and be staggered, the yawing moment of liquid crystal molecule is a continually varying between this two electrode bendings portion, the junction of this pixel electrode bend and this pixel electrode bottom is provided with chamfering, makes near the yawing moment of the liquid crystal molecule also continually varying junction of this pixel electrode bend and this pixel electrode bottom.
Another technical scheme that technical solution problem of the present invention is adopted is: a kind of plane inner switching type liquid crystal displaying apparatus is provided, it comprises a pixel electrode and a public electrode, this pixel electrode comprises pixel electrode bottom and pixel electrode bend, this public electrode comprises public electrode bottom and public electrode bend, the smooth curve that this two electrode bendings portion is made up of at least two arcuate structures, and be staggered, wherein, be provided with chamfering in the junction of this pixel electrode bend and this pixel electrode bottom and the junction of this public electrode bend and this public electrode bottom.
Compared with prior art, the advantage of plane inner switching type liquid crystal displaying apparatus of the present invention is that it also changes continuously near near the direction of an electric field junction of this pixel electrode bend and this pixel electrode bottom and the junction of this public electrode bend and this public electrode bottom, be that distortionless electric field phenomenon occurs, therefore it has eliminated the unusual phenomenon of prior art electrode tail end liquid crystal deflection, thereby improves briliancy.
[description of drawings]
Fig. 1 is the floor map of prior art plane inner switching type liquid crystal displaying apparatus one pixel region.
Fig. 2 is the enlarged drawing in II shown in Figure 1 district.
Fig. 3 is the liquid crystal deflecting element synoptic diagram in III shown in Figure 1 district.
Fig. 4 is the improved electrode structure synoptic diagram of prior art.
Fig. 5 is electric field shown in the V district and a liquid crystal deflecting element synoptic diagram among Fig. 4.
Fig. 6 is this bending shape electrode structure optics design sketch when applying voltage.
Fig. 7 is the floor map of plane inner switching type liquid crystal displaying apparatus first embodiment one pixel region of the present invention.
Fig. 8 is the electric field and the liquid crystal deflecting element synoptic diagram in VIII shown in Figure 7 district.
Fig. 9 is that this electrode structure is at the optical effect figure that applies under the voltage.
Figure 10 is the plane inner switching type liquid crystal displaying apparatus second embodiment synoptic diagram of the present invention.
Figure 11 is plane inner switching type liquid crystal displaying apparatus the 3rd an embodiment synoptic diagram of the present invention.
[embodiment]
Please refer to Fig. 7 to Fig. 9, is plane inner switching type liquid crystal displaying apparatus 3 first embodiment synoptic diagram of the present invention.With prior art plane inner switching type liquid crystal displaying apparatus structural similarity, this plane inner switching type liquid crystal displaying apparatus 3 comprises first substrate (figure does not show) and second substrate (figure does not show) that is oppositely arranged, place the liquid crystal layer (figure does not show) between first substrate and second substrate, a plurality ofly be arranged in this first substrate and orthogonal gate line 311 and data line 312, a plurality of thin film transistor (TFT) 320, pixel electrode 330 and public electrodes 340 that are arranged on this gate line 311 and these data line 312 infalls.This pixel electrode 330 comprises pixel electrode bend 333 and pixel electrode bottom 332, and this public electrode 340 comprises public electrode bend 343 and public electrode bottom 342.
This pixel electrode 330 is provided with corresponding to this pixel region with public electrode 340, it all is arranged in first substrate in the present embodiment, this pixel electrode bend 333 is parallel to each other and is staggered with this public electrode bend 343, and the smooth curve of forming by at least two arcuate structures, the direction of an electric field of Xing Chenging is to change continuously therebetween, be continuous domain, so this structure can be referred to as the continuous domain structure.
Fig. 8 is the electric field and the liquid crystal deflecting element synoptic diagram in VIII shown in Figure 7 district.With respect to electrode structure shown in Figure 4, its difference is: design a chamfering 342a in the public electrode bend 343 and the junction of public electrode bottom 342, this chamfering 342a is identical with public electrode bottom 342 materials with public electrode bend 343 and be an integral body.And this chamfering 342a is positioned at acute angle one side (the sharp angle place shown in Fig. 5) and protrusion public electrode bottom 342 that the tangential direction of public electrode bend 343 in this junction become with public electrode bottom 342, is interior chamfering.Under this kind electrode structure, the outer ledge of chamfering 342a is vertical with public electrode bend 343 and pixel electrode bend 333.When public electrode 340 and pixel electrode 330 apply voltage, producing electric field 390, this electric field 390 is perpendicular to pixel electrode bend 333 and public electrode bend 343, and near the electric field chamfering 342a also is equally distributed continuous electric field, and distortionless electric field phenomenon occurs.The chamfering 332a (consulting Fig. 7) that same design is also arranged in the pixel electrode crooked 333 and the junction of pixel electrode bottom 332.
By finding out among the figure, liquid crystal molecule 303a away from chamfering 342a turns clockwise, the liquid crystal molecule 303b of contiguous chamfering 342a also turns clockwise, therefore, under this electric field, identical sense of rotation is avoided near the distortion electric field of chamfering 342a and the appearance of blanking bar, and the response characteristic of liquid crystal layer improves, and the viewing area does not have remaining image yet.
Fig. 9 is that this electrode structure is at the optical effect figure that applies under the voltage.Similar with Fig. 6, four clear zones are depicted as liquid crystal layer among this figure, have a bright line p1 respectively between the first clear zone b1 and the second clear zone b2 and between the 3rd clear zone b3 and the 4th clear zone b4, are pixel electrodes; Having a concealed wire c1 between the second clear zone b2 and the 3rd clear zone b3, is public electrode; Part in two broken circle frames is the dark space that the place, unnecessary territory of electrode tail end forms.Contrast as can be seen with earlier figures 6, the brightness of the bright line p1 at pixel electrode place increases, the brightness of the concealed wire c1 at public electrode place also is significantly increased, and, because of pixel electrode bend and pixel electrode bottom, the electric field distorting of public electrode bend and public electrode bottom and the blanking bar phenomenon that produces also have clear improvement, the introducing that this place's chamfering is described has improved the sense of rotation of liquid crystal molecule at this place, make whole direction of an electric field trend homogeneous, the light transmission rate at this place is significantly improved, display characteristic be improved significantly.
Because it is unusual not only to have eliminated in the prior art in the bending shape electrode structure two territories intersection electric field, and the electric field liquid crystal deflecting element unusual and that produce in unnecessary territory, junction of having eliminated pixel electrode and connecting line and public electrode and concentric line is unusual, therefore the lower situation of transmittance of the prior art is avoided, thereby can reach higher briliancy.
In the present embodiment, this data line 312 also can be smooth curve, and is parallel with pixel electrode bend 333.
Corresponding each pixel region of the public electrode of plane inner switching type liquid crystal displaying apparatus of the present invention with pixel electrode, it can be arranged on the different base, and produces approximately parallel electric field, and promptly the fundamental component of this electric field is on the direction parallel with substrate; When being arranged on same substrate, can being present in therebetween just like separation layers such as passivation layers, and making two electrodes be positioned at different layers; Or public electrode and pixel electrode placed with one deck to produce the more excellent electric field of collimation.
The public electrode of plane inner switching type liquid crystal displaying apparatus of the present invention and pixel electrode can adopt transparent conductive material such as tin indium oxide (Indium Tin Oxide, ITO) etc.When adopting transparent material, can obtain high aperture opening ratio, thereby have higher briliancy.
The present invention further comprises a colored filter (figure does not show), is arranged on arbitrary substrate.This colored filter comprises a plurality of pixels, and each pixel comprises three sub-pixels of red, green, blue, and each sub-pixel edge comprises two parts at least, and these two parts are respectively to the different directions bending, and are parallel with pixel electrode.
Seeing also Figure 10, is the plane inner switching type liquid crystal displaying apparatus second embodiment synoptic diagram of the present invention.Be with the first embodiment something in common: in this liquid crystal indicator 4, pixel electrode bend 433 has the chamfering 432a (this chamfering is interior chamfering), the public electrode bend 443 that protrude pixel electrode bottom 432 with the same design in 442 junctions, public electrode bottom the chamfering 442a (this chamfering is interior chamfering) that protrudes public electrode bottom 442 to be arranged with the design of 432 junctions, pixel electrode bottom.Exist with the first embodiment difference: in pixel electrode bend 433 and 432 junctions, pixel electrode bottom and the different side of chamfering 432a, increase recessed chamfering 432b (this chamfering also is interior chamfering) in pixel electrode bottom 432, increase the sawtooth 442b of protrusion public electrode bottom 442 in public electrode bend 443 and 442 junctions, public electrode bottom with the different side of chamfering 442a.Promptly this chamfering 432b is positioned at pixel electrode bend 433 is connected place one-tenth with pixel electrode bottom 432 place, obtuse angle (being the obtuse angles beta place shown in Fig. 5), and this sawtooth 442b public electrode bend 433 is connected the place, obtuse angle (i.e. obtuse angles beta place shown in the 5th figure) that the place becomes with public electrode bottom 442.The design of this chamfering 432b, sawtooth 442b has further solved the electric field torsion problem that is positioned at both ends between pixel electrode bend 433 and the public electrode bend 443.
Seeing also Figure 11, is plane inner switching type liquid crystal displaying apparatus the 3rd embodiment synoptic diagram of the present invention.Be with the first embodiment something in common: in this liquid crystal indicator 5, in pixel electrode bend 533 and the design of 532 junctions, pixel electrode bottom the chamfering 532a that protrudes pixel electrode bottom 532 is arranged, the chamfering 542a that protrudes public electrode bottom 542 is arranged in public electrode bend 543 and the design of 542 junctions, public electrode bottom.Be with the first embodiment difference: at pixel electrode bend 533 tail ends and near chamfering 542a place, along excising the corner with chamfering 542a edge parallel direction, form chamfering 533a, this chamfering 533a is outer chamfering.Equally at public electrode bend 543 tail ends, near chamfering 532a place, along and chamfering 532a edge parallel direction excision corner, form chamfering 543a, this chamfering 543a also is outer chamfering.
Claims (13)
1. plane inner switching type liquid crystal displaying apparatus, comprise a pixel electrode and a public electrode, this pixel electrode comprises pixel electrode bottom and pixel electrode bend, this public electrode comprises public electrode bottom and public electrode bend, this two electrode bendings portion is staggered, it is characterized in that: this two electrode bendings portion is the smooth curve shape of being made up of at least two arcuate structures, the yawing moment of liquid crystal molecule is a continually varying therebetween, the junction of this pixel electrode bend and this pixel electrode bottom is provided with chamfering, makes near the yawing moment of the liquid crystal molecule also continually varying junction of this pixel electrode bend and this pixel electrode bottom.
2. plane inner switching type liquid crystal displaying apparatus as claimed in claim 1 is characterized in that: this chamfering is positioned at the acute angle place of this pixel electrode bend and its junction, bottom.
3. plane inner switching type liquid crystal displaying apparatus as claimed in claim 2 is characterized in that: this chamfering is protruded outside the pixel electrode bottom.
4. plane inner switching type liquid crystal displaying apparatus as claimed in claim 3 is characterized in that: this chamfering is interior chamfering.
5. plane inner switching type liquid crystal displaying apparatus as claimed in claim 1 is characterized in that: this chamfering lays respectively at the place, obtuse angle and the public electrode bend tail end of acute angle place, pixel electrode bend and the junction, pixel electrode bottom of this pixel electrode bend and this junction, pixel electrode bottom.
6. plane inner switching type liquid crystal displaying apparatus, it comprises a pixel electrode and a public electrode, this pixel electrode comprises pixel electrode bottom and pixel electrode bend, this public electrode comprises public electrode bottom and public electrode bend, this two electrode bendings portion is staggered, it is characterized in that: this two electrode bendings portion is the smooth curve shape of being made up of at least two arcuate structures, the yawing moment of liquid crystal molecule is a continually varying therebetween, is provided with chamfering in the junction of this pixel electrode bend and this pixel electrode bottom and the junction of this public electrode bend and this public electrode bottom.
7. plane inner switching type liquid crystal displaying apparatus as claimed in claim 6 is characterized in that: this chamfering is positioned at the acute angle place of this pixel electrode bend and its junction, bottom and the acute angle place of this public electrode bend and its junction, bottom.
8. plane inner switching type liquid crystal displaying apparatus as claimed in claim 7 is characterized in that: this chamfering is protruded outside pixel electrode bottom or the public electrode bottom.
9. plane inner switching type liquid crystal displaying apparatus as claimed in claim 7 is characterized in that: this chamfering is interior chamfering.
10. plane inner switching type liquid crystal displaying apparatus as claimed in claim 7 is characterized in that: there is chamfering in the tail end of pixel electrode bend and public electrode bend.
11. plane inner switching type liquid crystal displaying apparatus as claimed in claim 10 is characterized in that: this chamfering is outer chamfering.
12. plane inner switching type liquid crystal displaying apparatus as claimed in claim 6 is characterized in that: this chamfering lays respectively at place, obtuse angle and the pixel electrode bend tail end and the public electrode bend tail end of acute angle place, pixel electrode bend and junction, pixel electrode bottom of acute angle place, public electrode bend and this junction, public electrode bottom of this pixel electrode bend and this junction, pixel electrode bottom.
13. plane inner switching type liquid crystal displaying apparatus as claimed in claim 12 is characterized in that: the place, obtuse angle of public electrode bend and junction, public electrode bottom is provided with sawtooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100523848A CN100414407C (en) | 2004-11-19 | 2004-11-19 | Switching liquid-crystal display device in plane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100523848A CN100414407C (en) | 2004-11-19 | 2004-11-19 | Switching liquid-crystal display device in plane |
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| Publication Number | Publication Date |
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| CN1779533A CN1779533A (en) | 2006-05-31 |
| CN100414407C true CN100414407C (en) | 2008-08-27 |
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| CNB2004100523848A Expired - Fee Related CN100414407C (en) | 2004-11-19 | 2004-11-19 | Switching liquid-crystal display device in plane |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105739194A (en) * | 2012-07-02 | 2016-07-06 | 群康科技(深圳)有限公司 | Image display system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07191336A (en) * | 1993-12-27 | 1995-07-28 | Toshiba Corp | Liquid crystal display device |
| US20030043327A1 (en) * | 2001-08-29 | 2003-03-06 | Tetsuya Aoyama | Liquid crystal display apparatus using IPS display mode with high numerical aperture |
| US6636289B2 (en) * | 2000-04-19 | 2003-10-21 | Lg.Philips Lcd Co., Ltd. | In-plane switching LCD panel with multiple domains and rubbing directions symetric about a line |
| US6680772B2 (en) * | 2000-09-14 | 2004-01-20 | Lg.Philips Lcd Co., Ltd. | In-plane switching mode thin film transistor liquid crystal display device with wide viewing angle |
-
2004
- 2004-11-19 CN CNB2004100523848A patent/CN100414407C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07191336A (en) * | 1993-12-27 | 1995-07-28 | Toshiba Corp | Liquid crystal display device |
| US6636289B2 (en) * | 2000-04-19 | 2003-10-21 | Lg.Philips Lcd Co., Ltd. | In-plane switching LCD panel with multiple domains and rubbing directions symetric about a line |
| US6680772B2 (en) * | 2000-09-14 | 2004-01-20 | Lg.Philips Lcd Co., Ltd. | In-plane switching mode thin film transistor liquid crystal display device with wide viewing angle |
| US20030043327A1 (en) * | 2001-08-29 | 2003-03-06 | Tetsuya Aoyama | Liquid crystal display apparatus using IPS display mode with high numerical aperture |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105739194A (en) * | 2012-07-02 | 2016-07-06 | 群康科技(深圳)有限公司 | Image display system |
| CN105739194B (en) * | 2012-07-02 | 2022-01-21 | 群康科技(深圳)有限公司 | Image display system |
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| Publication number | Publication date |
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| CN1779533A (en) | 2006-05-31 |
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