CN1690815A - Fringing electric field switch type liquid crystal display unit - Google Patents
Fringing electric field switch type liquid crystal display unit Download PDFInfo
- Publication number
- CN1690815A CN1690815A CN 200410027098 CN200410027098A CN1690815A CN 1690815 A CN1690815 A CN 1690815A CN 200410027098 CN200410027098 CN 200410027098 CN 200410027098 A CN200410027098 A CN 200410027098A CN 1690815 A CN1690815 A CN 1690815A
- Authority
- CN
- China
- Prior art keywords
- switch type
- lcd device
- type lcd
- fringe field
- field switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention discloses an edge electric field switch-type LCD device, which comprises a clearing upper basement, a clearing down basement, a liquid crystal liquid, multiple brake cables and data wire. The liquid crystal liquid is between upper and down basements; multiple brake cables and data wire form array pixel unit on basement; every pixel unit comprises pixel electrode and public electrode; the public electrode is panel shape, and the pixel electrode presents curve form with at least part.
Description
[technical field]
The invention relates to a kind of liquid crystal indicator, particularly a kind of fringe field switch type lcd device.
[background technology]
Liquid crystal indicator is because have characteristics such as low diathermaneity, thin thickness and power consumption be low, so use day by day extensively, and along with the ripe and innovation of correlation technique, its kind is also various day by day.Usually when the user watched liquid crystal indicator from different perspectives, the contrast of image can reduce along with the increase of viewing angle, thereby produced angle limitations.Fringe field switch (Fringe Field Switching, FFS) technology is based on problems such as the visual angle of conventional liquid crystal is narrow and small and the solution that proposes, itself and plane internal switch (In-PlaneSwitching, IPS) wide viewing angle technology difference is, the fringe field switching technique as a whole places pixel electrode under with transparency conducting layer public electrode, make Electric Field Distribution more intensive, so the fringe field switching technique have bigger transmission region.
The prior art of fringe field switch type lcd device as depicted in figs. 1 and 2, this liquid crystal indicator comprises substrate 14 on, substrate once 22 and the liquid crystal layer 17 between last substrate 14 and following substrate 22.Should go up substrate 14 1 sides one colored filter 15 and last alignment film 16 are set, alignment film 16 makes liquid crystal molecule form orientation on this.Pixel electrode 9 and public electrode 10 are set in this time substrate 22, this pixel electrode 9 and public electrode 10 drive the required electric field of liquid crystal molecule in order to produce, one insulation course 20 is arranged at and makes the insulation of being separated by of two electrodes between pixel electrode 9 and the public electrode 10, once alignment film 18 is arranged on the pixel electrode 9, and this time alignment film 18 makes liquid crystal molecule form orientation.Also be provided with many brake cables 3 and data line 7 in this time substrate 22, this brake cable 3 and data line 7 provide scanning signal and data signals respectively.This brake cable 3 constitutes thin film transistor (TFT) with source electrode 7a and drain 7b.
Produce an edge electric field when applying a voltage between public electrode 10 and pixel electrode 9, liquid crystal molecule reverses at surface level under this electric field action.Because this pixel electrode 9 is a pectination, this public electrode 10 is the panel shape, an and transparent insulating layer that alternating floor thickness is very little 20 between two electrodes, therefore Electric Field Distribution is more intensive, with respect to the plane internal switch technology, the invalid part of this electric field is littler, so this fringe field switch type lcd device aperture opening ratio and penetrance are higher.
But, a plurality of vertical bar shapeds that are parallel to each other that branch into of the pixel electrode 9 of prior art, the electric field that itself and public electrode 10 produce is a single direction, the deflection of liquid crystal molecule is also only rotated to this direction, and this fringe field switch type lcd device is single zone (Single Domain) fringe field switch type lcd device.This liquid crystal indicator is observed on different visual angles and can be produced colour cast, and influences display effect.
For solving the colour cast problem of the single edges of regions electric field of prior art switching liquid crystal display apparatus, industry proposes another kind of electrode arranging structure, as shown in Figure 3, it is the electrode arranging structure vertical view of the fringe field switch type lcd device of this another kind prior art, pixel electrode 190 has a bending part (not indicating), and this bending part is "＜" shape.When voltage was applied on this pixel electrode 190 and the public electrode 180, the electric field of Xing Chenging mainly was distributed on the both direction therebetween, is two territory electric fields.The pixel electrode 190 of this bending and public electrode 180 and the liquid crystal molecule that rotates towards this both direction are divided into two zones with a pixel, these two zones have different viewing angle characteristics, so this fringe field switch type lcd device is dual area (Two Domain) fringe field switch type lcd device.This liquid crystal indicator can be eliminated the colour cast problem of single edges of regions electric field switching liquid crystal display apparatus to a certain extent, thereby improves the display quality of LCD.The pixel electrode 190 of the dual area fringe field switch type lcd device of prior art also can be continuous "＜" shape and distributes.
But, the pixel electrode of this dual area fringe field switch type lcd device is broken line shape (i.e. "＜" shape), has sharp-pointed kink (i.e. the drift angle place of "＜" shape), in this sharp-pointed bending place, because electric field is unusual, the liquid crystal deflecting element at this place is unordered, causes swing offset (Disclination), reduces color quality.
[summary of the invention]
Have colour cast, visual angle problem of smaller for overcoming the prior art fringe field switch type lcd device, the invention provides a kind of fringe field switch type lcd device of eliminating colour cast and having wide viewing angle.
The technical scheme that technical solution problem of the present invention is adopted is: a kind of fringe field switch type lcd device, it comprises transparent substrate, a transparent substrate down, a liquid crystal layer, many brake cables and the data line gone up, this liquid crystal layer is between last substrate and following substrate, the pixel cell that these many brake cables and data line forming array are arranged and being formed at down in the substrate, have pixel electrode and public electrode in each pixel cell, this public electrode is the panel shape, and the curved shape of this pixel electrode at least a portion.
Compared with prior art, the advantage of fringe field switch type lcd device of the present invention is that its pixel electrode is a shaped form, can produce the multiple domain electric field, makes liquid crystal molecule to different directions deflection, its colour cast that observation post produces on different visual angles is cancelled out each other, thereby obtains better display effect.
[description of drawings]
Fig. 1 is the structural representation of the single edges of regions electric field of prior art switching liquid crystal display apparatus.
Fig. 2 is the electrode plane synoptic diagram of the single edges of regions electric field of prior art switching liquid crystal display apparatus.
Fig. 3 is the electrode plane synoptic diagram of prior art dual area fringe field switch type lcd device.
Fig. 4 is the structural representation of fringe field switch type lcd device first embodiment of the present invention.
Fig. 5 is the electrode plane synoptic diagram of fringe field switch type lcd device first embodiment of the present invention.
Fig. 6 is the electrode plane synoptic diagram of fringe field switch type lcd device second embodiment of the present invention.
[embodiment]
Please refer to Fig. 4, is the structural plan figure of fringe field switch type lcd device of the present invention.This fringe field switch type lcd device comprises that one transparently goes up substrate 214, one and last the substrate 214 following substrate 222 and the liquid crystal layer 217 between last substrate 214 and following substrate 222 that are oppositely arranged.For down substrate 222, its inboard is provided with a public electrode 225 and pixel electrode 219, and this pixel electrode 219 and public electrode 225 are by an insulation course 220 insulation of being separated by, and once alignment film 218 is arranged at down in the substrate 222.For last substrate 214, its inboard sets gradually alignment film 216 on a colored filter 215 and.
Please refer to Fig. 5, be the floor map of fringe field switch type lcd device of the present invention, this fringe field switch type lcd device also comprises many brake cables 223 and data line 224, and it constitutes a plurality of pixel regions, in each pixel region, pixel electrode 219 is a C shape.
Because pixel electrode 219 is a C shape, with the broken line shape electrode comparison of prior art, it does not have sharp-pointed kink (i.e. the drift angle place of "＜" shape), but replaces sharp-pointed kink with smooth curve, can avoid the swing offset that is caused by sharp-pointed kink.
Because pixel electrode 219 is a C shape, so the summation that can regard direction continually varying linear microelectrode as, but not has only the combination of the linear electrode of both direction in the prior art, therefore when voltage puts on pixel electrode 219 and the public electrode 225, the deflection of liquid crystal molecule also is continuous variation in the liquid crystal layer 217, a plurality of liquid crystal molecules in one pixel region have a plurality of yawing moments corresponding to the shape of electrode, so its contrast is comparatively average on each visual angle.And this fringe field switch type lcd device produces multizone under bright attitude, the colour cast of all directions is offseted, so that wide viewing angle to be provided.So this fringe field switch type lcd device is multizone (Multi-Domain) fringe field switch type lcd device.
Please refer to Fig. 6, it is the floor map of fringe field switch type lcd device second embodiment of the present invention, this fringe field switch type lcd device comprises many brake cables 327 and data line 326, it constitutes a plurality of pixel regions, in each pixel region, pixel electrode 329 is a S shape, and public electrode 328 is separated by with these pixel electrode 329 insulation.
Data line 326 also is the S shape similar to pixel electrode 329.
Because electric field results between pixel electrode 329 and the public electrode 328, so the effective viewing area of each pixel cell only is the zone at pixel electrode 329 and public electrode 328 places, and should the zone and this pixel cell between the space be inactive area.Because second embodiment adopts the data line 326 similar to pixel electrode 329 shapes, so the inactive area in its each pixel cell is less, and its display efficiency is higher.
What this second embodiment adopted pixel electrode is shaped as S shape, and this S shape may extend to more high-order, promptly multiple S shape or waveform.
Claims (22)
1. fringe field switch type lcd device, comprise transparent substrate, a transparent substrate down, a liquid crystal layer, many brake cables and the data line gone up, this liquid crystal layer is between last substrate and following substrate, the pixel cell that these many brake cables and data line forming array are arranged and being formed at down in the substrate, have pixel electrode and public electrode in each pixel cell, this public electrode is the panel shape, it is characterized in that: the curved shape of this pixel electrode at least a portion.
2. fringe field switch type lcd device as claimed in claim 1 is characterized in that: this pixel electrode is a C shape.
3. fringe field switch type lcd device as claimed in claim 1 is characterized in that: this pixel electrode is a S shape.
4. fringe field switch type lcd device as claimed in claim 1 is characterized in that: this pixel electrode is multiple S shape.
5. fringe field switch type lcd device as claimed in claim 1 is characterized in that: this time substrate is a transparent material.
6. fringe field switch type lcd device as claimed in claim 1 is characterized in that: substrate also comprises a colored filter on this.
7. fringe field switch type lcd device as claimed in claim 1 is characterized in that: this data line is a linear.
8. fringe field switch type lcd device as claimed in claim 1 is characterized in that: this data line is the shaped form identical with this pixel electrode.
9. fringe field switch type lcd device as claimed in claim 1 is characterized in that: this public electrode and pixel electrode are transparent conductive material.
10. fringe field switch type lcd device as claimed in claim 1 is characterized in that: substrate is a glass material on this.
11. fringe field switch type lcd device as claimed in claim 1 is characterized in that: further comprise an insulation course, this insulation course is arranged between pixel electrode and the public electrode.
12. fringe field switch type lcd device, comprise transparent substrate, a transparent substrate down, a liquid crystal layer, many brake cables and the data line gone up, this liquid crystal layer is between last substrate and following substrate, the pixel cell that these many brake cables and data line forming array are arranged and being formed at down in the substrate, have pixel electrode and public electrode in each pixel cell, this public electrode is the panel shape, it is characterized in that: this pixel electrode comprises at least two parts, and these at least two parts are respectively to the different directions bending.
13. fringe field switch type lcd device as claimed in claim 12 is characterized in that: this pixel electrode is a C shape.
14. fringe field switch type lcd device as claimed in claim 12 is characterized in that: this pixel electrode is a S shape.
15. fringe field switch type lcd device as claimed in claim 12 is characterized in that: this pixel electrode is multiple S shape.
16. fringe field switch type lcd device as claimed in claim 12 is characterized in that: this time substrate is a transparent material.
17. fringe field switch type lcd device as claimed in claim 12 is characterized in that: substrate also comprises a colored filter on this.
18. fringe field switch type lcd device as claimed in claim 12 is characterized in that: this data line is a linear.
19. fringe field switch type lcd device as claimed in claim 12 is characterized in that: this data line is the shaped form identical with this pixel electrode.
20. fringe field switch type lcd device as claimed in claim 12 is characterized in that: this public electrode and pixel electrode are transparent conductive material.
21. fringe field switch type lcd device as claimed in claim 12 is characterized in that: substrate is a glass material on this.
22. fringe field switch type lcd device as claimed in claim 12 is characterized in that: further comprise an insulation course, this insulation course is arranged between pixel electrode and the public electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100270986A CN100397215C (en) | 2004-04-28 | 2004-04-28 | Fringing electric field switch type liquid crystal display unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100270986A CN100397215C (en) | 2004-04-28 | 2004-04-28 | Fringing electric field switch type liquid crystal display unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1690815A true CN1690815A (en) | 2005-11-02 |
| CN100397215C CN100397215C (en) | 2008-06-25 |
Family
ID=35346346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100270986A Expired - Lifetime CN100397215C (en) | 2004-04-28 | 2004-04-28 | Fringing electric field switch type liquid crystal display unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100397215C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101398576B (en) * | 2007-09-28 | 2013-06-26 | 株式会社日本显示器西 | Liquid crystal device and electronic apparatus |
| CN105137680A (en) * | 2015-10-20 | 2015-12-09 | 京东方科技集团股份有限公司 | Electrode, array substrate, display panel and display device for liquid crystal display |
| US9235067B2 (en) | 2006-06-02 | 2016-01-12 | Semiconductor Energy Laboratory Co., Ltd. | Display device and driving method thereof |
| CN105319791A (en) * | 2014-05-30 | 2016-02-10 | 株式会社日本显示器 | Liquid crystal display device |
| CN105319785A (en) * | 2014-07-10 | 2016-02-10 | 三星显示有限公司 | Liquid crystal display |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002014374A (en) * | 2000-04-28 | 2002-01-18 | Hitachi Ltd | Liquid crystal display device |
| US6449026B1 (en) * | 1999-06-25 | 2002-09-10 | Hyundai Display Technology Inc. | Fringe field switching liquid crystal display and method for manufacturing the same |
| KR100482468B1 (en) * | 2000-10-10 | 2005-04-14 | 비오이 하이디스 테크놀로지 주식회사 | Fringe field switching mode lcd |
| KR100713882B1 (en) * | 2000-12-01 | 2007-05-07 | 비오이 하이디스 테크놀로지 주식회사 | FFS mode thin film transistor liquid crystal display |
| KR100448045B1 (en) * | 2000-12-05 | 2004-09-10 | 비오이 하이디스 테크놀로지 주식회사 | Fringe field swiching mode lcd |
| JP3678248B2 (en) * | 2003-10-20 | 2005-08-03 | 株式会社日立製作所 | Liquid crystal display |
-
2004
- 2004-04-28 CN CNB2004100270986A patent/CN100397215C/en not_active Expired - Lifetime
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI698853B (en) * | 2006-06-02 | 2020-07-11 | 日商半導體能源研究所股份有限公司 | Display device and driving method thereof |
| US11657770B2 (en) | 2006-06-02 | 2023-05-23 | Semiconductor Energy Laboratory Co., Ltd. | Display device and driving method thereof |
| TWI630598B (en) * | 2006-06-02 | 2018-07-21 | 日商半導體能源研究所股份有限公司 | Display device and driving method thereof |
| US11600236B2 (en) | 2006-06-02 | 2023-03-07 | Semiconductor Energy Laboratory Co., Ltd. | Display device and driving method thereof |
| TWI779890B (en) * | 2006-06-02 | 2022-10-01 | 日商半導體能源研究所股份有限公司 | Display device and driving method thereof |
| TWI576814B (en) * | 2006-06-02 | 2017-04-01 | 半導體能源研究所股份有限公司 | Display device and driving method thereof |
| TWI594229B (en) * | 2006-06-02 | 2017-08-01 | 半導體能源研究所股份有限公司 | Display device and driving method thereof |
| US10013923B2 (en) | 2006-06-02 | 2018-07-03 | Semiconductor Energy Laboratory Co., Ltd. | Display device and driving method thereof |
| US9235067B2 (en) | 2006-06-02 | 2016-01-12 | Semiconductor Energy Laboratory Co., Ltd. | Display device and driving method thereof |
| TWI747511B (en) * | 2006-06-02 | 2021-11-21 | 日商半導體能源研究所股份有限公司 | Display device and driving method thereof |
| TWI707338B (en) * | 2006-06-02 | 2020-10-11 | 日商半導體能源研究所股份有限公司 | Display device and driving method thereof |
| US10714024B2 (en) | 2006-06-02 | 2020-07-14 | Semiconductor Energy Laboratory Co., Ltd. | Display device and driving method thereof |
| CN101398576B (en) * | 2007-09-28 | 2013-06-26 | 株式会社日本显示器西 | Liquid crystal device and electronic apparatus |
| CN105319791B (en) * | 2014-05-30 | 2019-03-08 | 株式会社日本显示器 | Liquid crystal display device |
| CN105319791A (en) * | 2014-05-30 | 2016-02-10 | 株式会社日本显示器 | Liquid crystal display device |
| CN105319785A (en) * | 2014-07-10 | 2016-02-10 | 三星显示有限公司 | Liquid crystal display |
| US10203580B2 (en) | 2015-10-20 | 2019-02-12 | Boe Technology Group Co., Ltd. | Electrode applicable in liquid crystal display, array substrate, display panel and display device |
| CN105137680A (en) * | 2015-10-20 | 2015-12-09 | 京东方科技集团股份有限公司 | Electrode, array substrate, display panel and display device for liquid crystal display |
| CN105137680B (en) * | 2015-10-20 | 2018-11-06 | 京东方科技集团股份有限公司 | A kind of liquid crystal display electrode, array substrate, display panel, display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100397215C (en) | 2008-06-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7855772B2 (en) | Fringe field switching mode liquid crystal display device with high transmittance and wide viewing angle | |
| CN103529607B (en) | A kind of liquid crystal display panel, display device and its driving method | |
| CN103185993B (en) | The array base palte of IPS/FFS type liquid crystal indicator | |
| US20130176523A1 (en) | Pixel structure for liquid crystal display device | |
| CN103941501B (en) | Tft array substrate, display panels and liquid crystal display | |
| CN1653382A (en) | Bistable liquid crystal device with picture electrodes having comb structure | |
| CN115343870A (en) | Display panel with switchable wide and narrow viewing angles, display device and driving method | |
| CN102262322A (en) | Liquid crystal display device and liquid crystal display device substrate | |
| CN1920647A (en) | Liquid crystal display device | |
| CN100397215C (en) | Fringing electric field switch type liquid crystal display unit | |
| TW546625B (en) | Liquid crystal display device and drive method thereof | |
| CN1641453A (en) | Planar-switching liquid crystal display device and its storage capacitance | |
| CN100376990C (en) | Flat inside switching type liquid crystal display device | |
| CN1664678A (en) | Pixel arrangement adapted for wide view angle LCD | |
| CN1797138A (en) | LCD device | |
| TWI308246B (en) | An active matrix liquid crystal display | |
| CN2715193Y (en) | In-plane switching LCD device | |
| CN1700077A (en) | Liquid crystal display equipment | |
| CN1538211A (en) | Liquid crystal display device with transverse electric field | |
| CN201383064Y (en) | VA type liquid crystal display device | |
| CN2743872Y (en) | Transverse electric field liquid crystal display | |
| CN2727795Y (en) | In-plane switching type liquid crystal display device | |
| US20130176524A1 (en) | Pixel structure for liquid crystal display device | |
| CN2743862Y (en) | Multi-zone vertical orientation mode liquid crystal display | |
| CN2757174Y (en) | Liquid crystal display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |