CN100371784C - Liquid crystal display element capable of increasing opening rate and visible angle - Google Patents
Liquid crystal display element capable of increasing opening rate and visible angle Download PDFInfo
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- CN100371784C CN100371784C CNB2005100926129A CN200510092612A CN100371784C CN 100371784 C CN100371784 C CN 100371784C CN B2005100926129 A CNB2005100926129 A CN B2005100926129A CN 200510092612 A CN200510092612 A CN 200510092612A CN 100371784 C CN100371784 C CN 100371784C
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Abstract
The present invention presents a liquid crystal display element which comprises a film electric crystal baseplate, an optical phase delay layer which is positioned on the film electric crystal baseplate, and a penetration electrode layer, wherein the bottom surface of the film electric crystal baseplate is provided with a first polarization film; the optical phase delay layer has a low dielectric coefficient; the penetration electrode layer is positioned on the optical phase delay layer; the optical phase delay layer compensates phases counteract phase delay caused by the fact that light with an oblique incidence angle penetrates through liquid crystal between a liquid crystal display baseplate and the film electric crystal baseplate so that the visual angle of a liquid crystal display is enlarged; the second polarization film is positioned on the top of the liquid crystal display baseplate.
Description
[technical field]
Present invention is directed to a kind of LCD element, particularly relevant for a kind of LCD element with high aperture and big angle of visibility.
[background technology]
One of plane display technique that lcd technology is most advanced at present and the market acceptance is the highest, and widely computing information, communication and consumer appliances product are used.Use the display technique of cathode-ray tube (CRT) to compare with tradition, complete plane of lcd technology utilization and diverse video picture principle are to provide the display that possesses advantages such as in light weight, thin thickness.
Although lcd technology has possessed above-mentioned advantage, still have some bottlenecks must continue to study improvement to seek to achieve breakthrough.For instance, lcd technology is the problem that bottleneck is an aperture opening ratio wherein, and aperture opening ratio means the printing opacity ratio, and promptly the effective coverage of each picture element light-permeable is divided by the total area of picture element, and aperture opening ratio is high more, and whole picture is bright more.The other problem that bottleneck is an angle of visibility of lcd technology, and the phase delay that the angle of visibility of LCD causes can be subject to light by liquid crystal the time.Therefore, need to continue the improvement LCD Technology, develop the LCD that to have high aperture and big angle of visibility to seek to achieve breakthrough.
[summary of the invention]
The shortcoming of known techniques in view of the above, one of the present invention purpose are for a kind of LCD element is provided, and are applied in the LCD to reach the purpose of high aperture and big angle of visibility.
Another purpose of the present invention is for providing a kind of LCD element, and is applied in the LCD to lower the problem of image residue (Image Sticking).
Another purpose of the present invention is for providing a kind of LCD element, and is applied to increase electrode area in the LCD under the situation that does not produce interactive interference (Cross Talk).
Another purpose of the present invention is for providing a kind of LCD element, and is applied in the LCD so that optical compensation cheaply to be provided.
The invention provides a kind of LCD element, this LCD element comprises
One membrane transistor substrate, a light phase retardation layer are positioned on this membrane transistor substrate and a through electrode layer.This membrane transistor substrate bottom surface has one first light polarizing film, this light phase retardation layer has a low-k and a through electrode layer is positioned on this light phase retardation layer, wherein this light phase retardation layer carries out phase compensation and passes the caused phase delay of liquid crystal between a liquid crystal display substrate and this membrane transistor substrate to offset by the light with oblique incidence angle, to increase the angle of visibility of LCD, this second light polarizing film is positioned at a liquid crystal display substrate top.
Each feature of aforesaid the present invention will be described in detail in following preferred embodiment.
[description of drawings]
Figure 1A shows that one comprises the vertical view of the pixel circuit layout some of gate line, data line and through electrode;
Figure 1B shows that another kind comprises the vertical view of the pixel circuit layout some of gate line, data line and through electrode; And
Fig. 2 shows the sectional view of the present invention's one LCD element.
[embodiment]
The present invention provides a kind of LCD element, will be in following detailed description.The embodiment of the invention is based on the described problem of solution prior art, but the claim of institute of the present invention tool does not exceed with the description of following figure and embodiment, and should be as the criterion with the claim and the spirit of being applied for.
Shown in Figure 1A, show that one comprises gate line (Gate Line) 102, data line (Data Line) 104 vertical view a part of with the pixel circuit layout (Pixel Layout) of through electrode (Transparent Electrode) 106.In order to prevent for example problem of signal interactive interference in gate line 102, data line 104 and the through electrode 106 of different conductor, through electrode 106 can only be as far as possible near gate line 102, data line 104, because aperture opening ratio means the printing opacity ratio, be the total area of the effective coverage of each picture element light-permeable divided by picture element, this promptly means the layout of pixel circuit shown in Figure 1A aperture opening ratio is to be subjected to suitable restriction.Figure 1B shows that another kind comprises the vertical view of the pixel circuit layout some of gate line 102, data line 104 and through electrode 106 '.Forming through electrode 106 ' before, the one organic dielectric layer (not seeing in the vertical view) with low-k then is formed on gate line 102, the data line 104, therefore through electrode 106 ' can be very near gate line 102, data line 104 even overlapping, to increase the problem that aperture opening ratio can not cause the serious interactive interference of signal simultaneously again with gate line 102, data line 104.
Fig. 2 shows the sectional view of the present invention's one LCD element 200.LCD element 200 comprises the organic dielectric layer 206 of phase delay, through electrode 208 and 210, the light polarizing film 212 and 214 that substrate 202 and 204, has low-k.Substrate 202 more comprises a colored filter.Thickness with organic dielectric layer 206 of phase delay of low-k is between about 0.1 micron to 10 microns.Material with organic dielectric layer 206 of phase delay of low-k be selected from polyimide (Polyimide), polyamide (Polyamide), polyester (Polyester), polyacetals (Polyacetal), polycarbonate (Polycarbonate), polyamide imines (Polyamideimide), polyester-imide (Polyesterimide) one of them.Following chemical formula belongs to polyimide, polyamide compound respectively, and ε then is a specific inductive capacity.
The light of nature is polar biased light not, and light polarizing film then with the not polar biased light polarization of nature, passes through the light that only has the particular amplitude direction.And the material of liquid crystal is a kind of material with birefraction.When passing liquid crystal molecule, the light with oblique incidence angle can be divided into the twice refract light, i.e. ordinary light (Ordinary Ray) and non-ordinary light (Extraordinary Ray).Therefore when passing liquid crystal molecule, light will produce the phenomenon of phase delay (phase retardation).So general using compensation film compensates the phenomenon of passing the phase delay that liquid crystal molecule produces because of light, to increase the angle of visibility of LCD.
In one of the present invention embodiment, LCD element of the present invention utilize one before forming through electrode, be formed at the gate line of membrane transistor substrate, the organic dielectric layer of the phase delay with low-k on the data line so that through electrode as far as possible near gate line, data line even overlapping, to increase the problem that aperture opening ratio can not cause the serious interactive interference of signal simultaneously again with gate line, data line.In addition, the organic dielectric layer of phase delay with low-k has the function of phase delay/compensation simultaneously to increase the angle of visibility of LCD.In Figure 1B, the organic dielectric layer of phase delay with low-k is formed on gate line 102, the data line 104 and is positioned under the through electrode 106 ' to increase the aperture opening ratio of LCD.
The above is preferred embodiment of the present invention only, is not in order to limit claim of the present invention; All other do not break away from the equivalence of being finished under the disclosed spirit and changes or modification, all should be included in the following claim.
Claims (5)
1. LCD element, this LCD element comprises:
One membrane transistor substrate, this membrane transistor substrate bottom surface has one first light polarizing film;
One light phase retardation layer is positioned on the gate line and data line of this membrane transistor substrate and this thin film transistor base plate, and this light phase retardation layer has a low-k; And
One through electrode layer is positioned on this light phase retardation layer.
2. LCD element according to claim 1 is characterized in that, the thickness range of this light phase retardation layer is 0.1 to 10 micron.
3. LCD element according to claim 1, it is characterized in that, this light phase retardation layer carries out phase compensation and passes the caused phase delay of liquid crystal between a liquid crystal display substrate and this membrane transistor substrate to offset by the light with oblique incidence angle, with the angle of visibility of increase LCD, and this second light polarizing film is positioned at a liquid crystal display substrate top.
4. LCD element according to claim 1 is characterized in that, this through electrode layer and this light phase retardation layer cover the gate line and the data line of this membrane transistor substrate.
5. LCD element according to claim 1 is characterized in that, the material of this light phase retardation layer for be selected from polyimide, polyamide, polyester, polyacetals, polycarbonate, polyamide imines, polyester-imide one of them.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100926129A CN100371784C (en) | 2005-08-12 | 2005-08-12 | Liquid crystal display element capable of increasing opening rate and visible angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100926129A CN100371784C (en) | 2005-08-12 | 2005-08-12 | Liquid crystal display element capable of increasing opening rate and visible angle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1719314A CN1719314A (en) | 2006-01-11 |
| CN100371784C true CN100371784C (en) | 2008-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100926129A Active CN100371784C (en) | 2005-08-12 | 2005-08-12 | Liquid crystal display element capable of increasing opening rate and visible angle |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5252335B2 (en) * | 2006-10-27 | 2013-07-31 | Ｎｌｔテクノロジー株式会社 | Liquid crystal display device and terminal device |
| TWI469124B (en) * | 2010-05-04 | 2015-01-11 | Hon Hai Prec Ind Co Ltd | System and method for setting a visible angle of a liquid crystal display |
| CN102629022B (en) * | 2011-08-16 | 2015-05-13 | 京东方科技集团股份有限公司 | Display device, liquid crystal display panel and manufacturing method of liquid crystal display panel |
| KR102675570B1 (en) * | 2016-09-30 | 2024-06-13 | 삼성디스플레이 주식회사 | Polarizing unit and display apparatus comprising the same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1078049A (en) * | 1992-04-30 | 1993-11-03 | 三星电管株式会社 | Optical phase-retardation compensating film |
| JPH0990346A (en) * | 1995-09-26 | 1997-04-04 | Kyocera Corp | Liquid crystal display device |
| JPH11258638A (en) * | 1998-03-10 | 1999-09-24 | Hitachi Ltd | Guest/host type liquid crystal display device |
| JP2003107475A (en) * | 2001-09-27 | 2003-04-09 | Asahi Glass Co Ltd | Liquid crystal device |
| CN1538222A (en) * | 2003-04-14 | 2004-10-20 | 京东方显示器科技公司 | Semi-transmission liquid crystal display device |
| CN1550769A (en) * | 2003-02-26 | 2004-12-01 | �������ʱ��γɹ�˾ | Color and intensity measuring module for test of light emitting components by automated test equipment |
-
2005
- 2005-08-12 CN CNB2005100926129A patent/CN100371784C/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1078049A (en) * | 1992-04-30 | 1993-11-03 | 三星电管株式会社 | Optical phase-retardation compensating film |
| JPH0990346A (en) * | 1995-09-26 | 1997-04-04 | Kyocera Corp | Liquid crystal display device |
| JPH11258638A (en) * | 1998-03-10 | 1999-09-24 | Hitachi Ltd | Guest/host type liquid crystal display device |
| JP2003107475A (en) * | 2001-09-27 | 2003-04-09 | Asahi Glass Co Ltd | Liquid crystal device |
| CN1550769A (en) * | 2003-02-26 | 2004-12-01 | �������ʱ��γɹ�˾ | Color and intensity measuring module for test of light emitting components by automated test equipment |
| CN1538222A (en) * | 2003-04-14 | 2004-10-20 | 京东方显示器科技公司 | Semi-transmission liquid crystal display device |
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| CN1719314A (en) | 2006-01-11 |
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