CN2743872Y - Transverse electric field liquid crystal display - Google Patents
Transverse electric field liquid crystal display Download PDFInfo
- Publication number
- CN2743872Y CN2743872Y CN 200420093704 CN200420093704U CN2743872Y CN 2743872 Y CN2743872 Y CN 2743872Y CN 200420093704 CN200420093704 CN 200420093704 CN 200420093704 U CN200420093704 U CN 200420093704U CN 2743872 Y CN2743872 Y CN 2743872Y
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- Prior art keywords
- electric field
- lcd
- transverse electric
- liquid crystal
- base plate
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Abstract
The utility model provides a transverse electric field liquid crystal display, comprising a color filter base plate and a film electric crystal base plate. The liquid crystal molecule layer is arranged between the color filter base plate and the film electric crystal base plate. The film electric crystal base plate comprises a glass base plate, a plurality of projections and an electrode array, and a plurality of projections and the electrode array are positioned on the glass base plate. Wherein, the electrode array comprises a plurality of sharing electrodes and a plurality of pixel electrodes which are positioned on the projections. The transverse electric field liquid crystal display has high light-transmitting efficiency.
Description
[technical field]
The utility model relates to a kind of LCD, particularly a kind of LCD with transverse electric field.
[background technology]
LCD has been widely used in various fields, yet there is topmost two large problems for traditional LCD, at first, when when certain angle is watched, the dark attitude brightness of LCD is with rapid increase (brightening) and variable color (abbreviation gray-scale inversion).Usually have only 90 ° of visual angles for the LCD of older type especially, just the right and left is each 45 °.This problem can't be watched display picture simultaneously for a plurality of beholders.Another main problem promptly is that traditional LCD response time is slower, and the picture that this problem can't satisfy fast moving in film and the recreation shows demand.
LCD with transverse electric field (In-Plane Switch LCD, abbreviate IPS-LCD as) be based on the above problem of conventional liquid crystal and the solution that proposes, itself and general twisted nematic (Twisted Nematic, TN) difference of LCD be in, the shared electrode of LCD with transverse electric field and pixel electrode are to be made on the same glass substrate, its horizontal component of electric field that utilizes shared electrode arranged side by side in the pixel and pixel electrode to be produced in operation drives layer of liquid crystal molecule, makes layer of liquid crystal molecule reach the purpose that logical light switches at plane torsion.Because layer of liquid crystal molecule, is compared the three-dimensional of TN pattern surface level reversing in the same way and is reversed under dark attitude and be difficult for light leak, and has bigger angular field of view.This moment, liquid crystal reverse speed and electric field intensity were proportional, directly were reflected in liquid crystal response speed.The horizontal electrode that utilizes different directions to arrange in addition can drive layer of liquid crystal molecule and do toward the varying level direction and reverse, and constitutes multidimensional territory (Multi-Domain), and this mode can increase bigger visual angle.
Existing LCD with transverse electric field as shown in Figures 1 and 2, layer of liquid crystal molecule 14 is sandwiched between colored filter substrate 10 and the glass substrate 12, wherein this colored filter substrate 10 and glass substrate 12 are supported by a spaced walls 20.The electrode structure of this IPS-LCD comprises gate line 13, data line 11; Two adjacent gate lines 13 and two adjacent data line 11 formations one pixel regions; Pectination shared electrode 17 is formed on the glass substrate 12; Pectination pixel electrode 18 is formed on the glass substrate 12; Wherein the broach of pixel electrode 18 is inserted between the broach of shared electrode 17.The liquid crystal molecule that this IPS-LCD utilizes the horizontal component of electric field of 17 of pixel electrode 18 and shared electrode to drive layer of liquid crystal molecule 14 makes it reverse at surface level.When driven (as shown in Figure 3), horizontal component of electric field that this pixel electrode 18 and shared electrode are 17 and imperfect parallel electric field, therefore, along Z-direction, electric field presents curve distribution, and intensity decays along Z-direction.This phenomenon causes the layer of liquid crystal molecule 14 of nearly colored filter substrate 10 sides and nearly glass substrate 12 sides to reverse degree difference, influences the logical efficient of light.
[utility model content]
For overcoming the logical inefficient defective of light in the prior art LCD with transverse electric field, the utility model provides a kind of LCD with transverse electric field with the logical efficient of high light.
The technical scheme of the utility model technical solution problem is: a kind of LCD with transverse electric field is provided, it comprises a colored filter substrate and a membrane transistor substrate, and layer of liquid crystal molecule is packaged between this colored filter substrate and this membrane transistor substrate.This membrane transistor substrate comprises a glass substrate and is positioned at a plurality of projectioies and an electrod-array of this glass substrate that wherein, this electrod-array comprises a plurality of shared electrode and a plurality of pixel electrode that is positioned on this projection.This LCD with transverse electric field has the logical efficient of high light.
Compared with prior art, the utilization of the utility model LCD with transverse electric field is positioned at the equivalent area of the convexity layer increase parallel pole between colored filter substrate and glass substrate, and next door between replacing between original colored filter substrate and glass substrate.Its advantage is can increase the equivalent electric field strength under same drive voltage, and then reduces the liquid crystal response time.On the other hand, this advantage also can keep former electric field intensity, and electrode separation is widened, and increases the ratio (aperture opening ratio) in light-permeable district in the pixel, improves LCD with transverse electric field pixel aperture ratio problem on the low side.Secondly, the utility model also can improve the uniformity coefficient of electric field between colored filter substrate and membrane transistor substrate, reduces colored filter substrate side and membrane transistor substrate-side liquid crystal molecule and reverses degree difference, promotes the logical efficient of light.
[description of drawings]
Fig. 1 is the diagrammatic cross-section of prior art LCD with transverse electric field.
Fig. 2 is the dot structure synoptic diagram of prior art LCD with transverse electric field.
Electric Field Distribution synoptic diagram when Fig. 3 is prior art LCD with transverse electric field on-load voltage.
Fig. 4 is the diagrammatic cross-section of the utility model LCD with transverse electric field.
Fig. 5 is the dot structure synoptic diagram of the utility model LCD with transverse electric field.
Electric Field Distribution synoptic diagram when Fig. 6 is the utility model LCD with transverse electric field on-load voltage.
[embodiment]
Please refer to Fig. 4, the utility model LCD with transverse electric field comprises a colored filter substrate 3, a membrane transistor substrate 8 and a plurality of spaced walls 4, wherein this spaced walls 4 is used to support this colored filter substrate 3 and this membrane transistor substrate 8 between this colored filter substrate 3 and this membrane transistor substrate 8.Layer of liquid crystal molecule 7 is packaged between this colored filter substrate 3 and this membrane transistor substrate 8.
Please cooperate with reference to Fig. 5, this membrane transistor substrate 8 comprises a glass substrate 5, an electrod-array 2 and a convexity layer 6, and wherein this electrod-array 2 and convexity layer 6 are positioned on this glass substrate 5.
Electrod-array 2 is made up of a plurality of pixels, wherein in a pixel region, electrod-array 2 comprises the gate line 22 of a horizontally set, one data line 21 that vertically is provided with, by a whippletree (not indicating) and three comb shape shared electrode 27 that broach 271,272,273 is constituted, and by a whippletree (not indicating) and two comb shape pixel electrodes 28 that broach 281,282 is constituted.Wherein, two of pixel electrode 28 broach 281,282 staggered being inserted between three broach 271,272,273 of shared electrode 27.The material of this pixel electrode 28 and this shared electrode 27 adopts transparent conductive body as indium tin oxide (IndiumTin Oxide is called for short ITO).
This convexity layer 6 is positioned on this glass substrate 5, and is positioned under shared electrode 27 and the pixel electrode 28, comprises a plurality of protrudingly 61, protrudes to layer of liquid crystal molecule 7 sides.This is a plurality of protruding 61 corresponding with the broach 281,282,271,272,273 of pixel electrode 28 and shared electrode 27 respectively, wherein, broach 281,282,271,272,273 is plated on this respectively on a plurality of protruding 61, being arranged between two adjacent pixel electrodes 28 and the shared electrode 27 of the ordered liquid crystal molecule of layer of liquid crystal molecule 7 is to increase relative effective parallel area of two adjacent pixel electrodes 28 and 27 of shared electrode.
Referring again to Fig. 6, when driven, the liquid crystal molecule of layer of liquid crystal molecule 7 produces under shared electrode 27 and 28 effect of electric field of pixel electrode and reverses, to realize passing through of light beam.Compared to prior art, under the moving voltage of identical driving, the parallel pole equivalent area increases, thereby can increase the equivalent electric field strength, thereby reduces the liquid crystal response time.On the other hand, this advantage also can keep former electric field intensity, and electrode separation is widened, to increase the ratio (aperture opening ratio) in light-permeable district in the pixel, to improve LCD with transverse electric field pixel aperture ratio problem on the low side.Secondly, the utility model also can improve the uniformity coefficient of electric field between colored filter substrate and membrane transistor substrate, reduces colored filter substrate side and membrane transistor substrate-side layer of liquid crystal molecule and reverses degree difference, promotes the logical efficient of liquid crystal light.
Claims (8)
1. LCD with transverse electric field, comprise a colored filter substrate and a membrane transistor substrate, layer of liquid crystal molecule is packaged between this colored filter substrate and this membrane transistor substrate, wherein this membrane transistor substrate comprises that a glass substrate and is positioned at the electrod-array of this glass substrate, wherein, this electrod-array comprises a plurality of shared electrode and a plurality of pixel electrode that is positioned on this projection, and it is characterized in that: a plurality of projectioies are positioned at this glass substrate.
2. LCD with transverse electric field as claimed in claim 1 is characterized in that this shared electrode and this pixel electrode all are transparent conductive bodies.
3. LCD with transverse electric field as claimed in claim 1 is characterized in that this shared electrode and this pixel electrode all are comb shapes.
4. LCD with transverse electric field as claimed in claim 1 is characterized in that this each shared electrode and this each pixel electrode comprise a plurality of broach.
5. LCD with transverse electric field as claimed in claim 4, a plurality of broach that it is characterized in that this pixel electrode are between a plurality of broach of this shared electrode.
6. LCD with transverse electric field as claimed in claim 4 is characterized in that these a plurality of broach are corresponding with a plurality of projectioies.
7. LCD with transverse electric field as claimed in claim 6 is characterized in that these a plurality of broach are plated on these a plurality of projectioies.
8. LCD with transverse electric field as claimed in claim 1 is characterized in that these a plurality of projectioies are side-prominent to layer of liquid crystal molecule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420093704 CN2743872Y (en) | 2004-09-27 | 2004-09-27 | Transverse electric field liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420093704 CN2743872Y (en) | 2004-09-27 | 2004-09-27 | Transverse electric field liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2743872Y true CN2743872Y (en) | 2005-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420093704 Expired - Lifetime CN2743872Y (en) | 2004-09-27 | 2004-09-27 | Transverse electric field liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2743872Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104659108A (en) * | 2015-03-19 | 2015-05-27 | 京东方科技集团股份有限公司 | Thin film transistor and manufacturing method thereof as well as array substrate, display panel and display device |
| CN104914630A (en) * | 2015-07-07 | 2015-09-16 | 重庆京东方光电科技有限公司 | Array substrate, display panel and display device |
| WO2016115749A1 (en) * | 2015-01-20 | 2016-07-28 | 深圳市华星光电技术有限公司 | Pixel structure and liquid crystal display having the pixel structure |
-
2004
- 2004-09-27 CN CN 200420093704 patent/CN2743872Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016115749A1 (en) * | 2015-01-20 | 2016-07-28 | 深圳市华星光电技术有限公司 | Pixel structure and liquid crystal display having the pixel structure |
| US10416505B2 (en) | 2015-01-20 | 2019-09-17 | Shenzhen China Star Optoelectronics Technology Co., Ltd | Pixel structure and liquid crystal display device comprising same |
| CN104659108A (en) * | 2015-03-19 | 2015-05-27 | 京东方科技集团股份有限公司 | Thin film transistor and manufacturing method thereof as well as array substrate, display panel and display device |
| CN104914630A (en) * | 2015-07-07 | 2015-09-16 | 重庆京东方光电科技有限公司 | Array substrate, display panel and display device |
| WO2017004949A1 (en) * | 2015-07-07 | 2017-01-12 | 京东方科技集团股份有限公司 | Array substrate, display panel and display device |
| US10317737B2 (en) | 2015-07-07 | 2019-06-11 | Boe Technology Group Co., Ltd. | Array substrate, display panel and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140927 Granted publication date: 20051130 |