CN202904173U - VA (vertical alignment) liquid crystal display screen - Google Patents
VA (vertical alignment) liquid crystal display screen Download PDFInfo
- Publication number
- CN202904173U CN202904173U CN 201220650685 CN201220650685U CN202904173U CN 202904173 U CN202904173 U CN 202904173U CN 201220650685 CN201220650685 CN 201220650685 CN 201220650685 U CN201220650685 U CN 201220650685U CN 202904173 U CN202904173 U CN 202904173U
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- CN
- China
- Prior art keywords
- liquid crystal
- glass base
- crystal glass
- base board
- display screen
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a VA (vertical alignment) liquid crystal display screen, which comprises a first liquid crystal glass base board and a second liquid crystal glass base board, wherein liquid crystal is arranged between the first liquid crystal glass base board and the second liquid crystal glass base board, a first polarizing filter and a second polarizing filter are respectively arranged outside the first liquid crystal glass base board and the second liquid crystal glass base board, a first alignment film and a second alignment film are respectively arranged inside the first liquid crystal glass base board and the second liquid crystal glass base board, and the liquid crystals in the first liquid crystal glass base board and the second liquid crystal glass base board are subjected to the processing of vertical alignment. According to the VA liquid crystal display screen, the technology of VA is applied to a black-white liquid crystal display screen, as a liquid crystal display screen works in a constant black mode, the phenomenon of light leakage caused by non-uniformity of liquid crystal molecule arrangement does not occur, a high contrast value above 400:1 can be extremely easy to obtain, a full viewing angle scope can be basically realized, and a response speed can reach 90ms.
Description
Technical field
The utility model relates to a kind of LCDs.
Background technology
Common black-and-white crystal display screen production technology reaches its maturity by the imperfection over past ten years, but the user is also more and more higher to the requirement of the low transmission of negative aobvious product and display comparison degree.
The utility model content
For above-mentioned deficiency, the purpose of this utility model provides the VA LCDs of a kind of low saturating rate, high-contrast.
The technical scheme that its technical matters that solves the utility model adopts is:
A kind of VA LCDs, it comprises the first liquid crystal glass base and the second liquid crystal glass base, be provided with liquid crystal between described the first liquid crystal glass base and the second crystal liquid substrate, the outside of described the first liquid crystal glass base and the second liquid crystal glass base has respectively the first polaroid and the second polaroid, described the first liquid crystal glass base and the second liquid crystal glass base inboard are provided with the first alignment film and the second alignment film, and the liquid crystal in described the first liquid crystal glass base and the second liquid crystal glass base is done vertical orientation and processed.
Described glass substrate is ito glass substrate.
Described liquid crystal is that dielectric anisotropy is the nematic crystal of bearing.
The beneficial effects of the utility model are, the VA technology is applied on the black-and-white crystal display screen, because LCDs work and normal black pattern, can not produce the light leakage phenomena that the non-uniformity of Liquid Crystal Molecules Alignment causes, can be easy to obtain the above height contrast of 400:1 refers to, and basically can realize full angular field of view, response speed can reach 90ms.
Description of drawings
Accompanying drawing 1 is the structural representation of the bright attitude of embodiment of the present utility model.
Accompanying drawing 2 is structural representations of the dark attitude of embodiment of the present utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described further:
Referring to Fig. 1 and Fig. 2, the utility model comprises the first liquid crystal glass base 1 and the second liquid crystal glass base 2, be provided with liquid crystal 3 between described the first liquid crystal glass base 1 and the second crystal liquid substrate 2, the outside of described the first liquid crystal glass base 1 and the second liquid crystal glass base 2 has respectively the first polaroid 4 and the second polaroid 5, described the first liquid crystal glass base 1 and the second liquid crystal glass base 2 inboards are provided with the first alignment film 6 and the second alignment film 7, liquid crystal 3 in described the first liquid crystal glass base 1 and the second liquid crystal glass base 2 is done vertical orientation and is processed, and described liquid crystal glass base is ito glass substrate.
The nematic crystal of dielectric anisotropy for negative (Δ ε＜0) is sandwiched between two ito glass substrates, and the both sides substrate has been smeared vertical alignment materials, makes the major axis of whole liquid crystal molecules perpendicular to the two substrates face, the liquid crystal molecule that becomes side by side vertical direction to arrange.Nematic crystal has identical optical anisotropy with the optics uniaxial crystal, and its optical axis is consistent with the major axis of liquid crystal molecule.Polaroid optical axis configured in parallel up and down.
When without impressed voltage, the direction of propagation of light is parallel with long axis of liquid crystal molecule, and effective refractive index is constant, does not have the phenomenon of phase delay, so the polarization direction of incident light is constant originally, so light can not see through second polaroid 5 and form dark attitude.When adding a large voltage, because it is the dielectric anisotropy negative type liquid crystal, the long axis of liquid crystal molecule φ that can tilt at a certain angle.φ can diminish along with the increasing of voltage, incident polarized light can resolve into two-beam, ordinary light and extraordinary ray produce the phenomenon of phase delay because refractive index is different, and then the linearly polarized photon that changes its originally incident becomes elliptically polarized light, the light of a part can pass through second polaroid 5, its bright attitude that Here it is.
Embodiment should not be considered as restriction of the present utility model, but any improvement of doing based on spirit of the present utility model, all should be within protection domain of the present utility model.
Claims (4)
1. VA LCDs, it comprises the first liquid crystal glass base (1) and the second liquid crystal glass base (2), be provided with liquid crystal (3) between described the first liquid crystal glass base (1) and the second crystal liquid substrate (2), the outside of described the first liquid crystal glass base (1) and the second liquid crystal glass base (2) has respectively the first polaroid (4) and the second polaroid (5), described the first liquid crystal glass base (1) and the second liquid crystal glass base (2) inboard are provided with the first alignment film (6) and the second alignment film (7), it is characterized in that: the liquid crystal (3) in described the first liquid crystal glass base (1) and the second liquid crystal glass base (2) is done vertical orientation and is processed.
2. VA LCDs according to claim 1, it is characterized in that: described liquid crystal glass base is ito glass substrate.
3. VA LCDs according to claim 1 is characterized in that: described liquid crystal (3) is that dielectric anisotropy is negative nematic crystal.
4. VA LCDs according to claim 1, it is characterized in that: described alignment film is vertical alignment materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220650685 CN202904173U (en) | 2012-11-28 | 2012-11-28 | VA (vertical alignment) liquid crystal display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220650685 CN202904173U (en) | 2012-11-28 | 2012-11-28 | VA (vertical alignment) liquid crystal display screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202904173U true CN202904173U (en) | 2013-04-24 |
Family
ID=48124825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220650685 Expired - Fee Related CN202904173U (en) | 2012-11-28 | 2012-11-28 | VA (vertical alignment) liquid crystal display screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202904173U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114750407A (en) * | 2022-05-06 | 2022-07-15 | 安徽光理智能科技有限公司 | High accuracy 3D printer |
-
2012
- 2012-11-28 CN CN 201220650685 patent/CN202904173U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114750407A (en) * | 2022-05-06 | 2022-07-15 | 安徽光理智能科技有限公司 | High accuracy 3D printer |
| CN114750407B (en) * | 2022-05-06 | 2024-04-19 | 安徽光理智能科技有限公司 | High-precision 3D printer |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20131128 |