CN202615082U - Liquid crystal light valve - Google Patents
Liquid crystal light valve Download PDFInfo
- Publication number
- CN202615082U CN202615082U CN 201220110887 CN201220110887U CN202615082U CN 202615082 U CN202615082 U CN 202615082U CN 201220110887 CN201220110887 CN 201220110887 CN 201220110887 U CN201220110887 U CN 201220110887U CN 202615082 U CN202615082 U CN 202615082U
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- light valve
- liquid crystal
- crystal light
- film
- utility
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Abstract
The utility model discloses a liquid crystal light valve which comprises a protective film, a support film, a polyvinyl alcohol film, a cellulose triacetate film, pressure-sensitive adhesive and a stripping film. The liquid crystal light valve is capable of effectively improving a visual angle, and solves the problem of poor angle dependency of the traditional crystal light valve.
Description
The utility model require on June 29th, 2011 submit that Patent Office of the People's Republic of China, application number are 201110179943.1 to, denomination of invention is the right of priority of the one Chinese patent application of " a kind of novel LCD box structure that improves the liquid crystal light valve dependence of angle ", its full content is combined in the utility model by reference.
Technical field
The utility model relates to the liquid crystal light valve technical field, particularly relates to a kind of liquid crystal light valve.
Background technology
Electro-welding arc mainly comprises infrared ray, luminous ray and ultraviolet ray, and arc light is very big to people's eye injury, even can cause losing one's sight.Liquid crystal light valve is the twisted nematic liquid crystals product that is used on the arc welding mask.The dual optical filtering of its ability, ultraviolet ray and the infrared ray harmful radiation of avoiding electric arc to produce, and the welding high light is stopped the generation of electric ophthalmia to the injury that eyes cause.
As shown in Figure 1, the structural representation for traditional a kind of liquid crystal light valve comprises: diaphragm 001, support membrane 002, PVAC polyvinylalcohol film 003, viewing angle compensation EWV film 004, pressure sensitive adhesive PSA005 and stripping film 006.
Because liquid crystal light valve is an optics original paper, therefore from actual use angle, its optical parametric is the most key, and in all optical parametrics, one of them index is exactly a dependence of angle.Yet, because the viewing angle compensation function of traditional viewing angle compensation EWV film 004 is relatively poor, make that the dependence of angle of traditional liquid crystal light valve is poor, promptly the visual angle is narrower, and the user only can watch in very narrow visual angle, brings the practicality of product to reduce.
The utility model content
For solving the problems of the technologies described above, the utility model embodiment provides a kind of liquid crystal light valve, and to improve the visual angle of liquid crystal light valve, technical scheme is following:
A kind of liquid crystal light valve comprises: diaphragm, support membrane, polyvinyl alcohol film, three cellulose acetate membrane, pressure sensitive adhesive and stripping film.
Preferably, said support membrane is made up of Triafol T.
The utility model also provides another kind of liquid crystal light valve, comprising: diaphragm, support membrane, polyvinyl alcohol film, cyclic olefin polymer, pressure sensitive adhesive and stripping film.
Preferably, said support membrane is made up of Triafol T.
Through using above technical scheme, a kind of liquid crystal light valve that the utility model provides uses three cellulose acetate membrane as compensation film for angular field of view, can effectively improve the visual angle, solves the problem of traditional liquid crystal light valve dependence of angle difference.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment that put down in writing in the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of traditional liquid crystal light valve;
The structural representation of a kind of liquid crystal light valve that Fig. 2 provides for the utility model embodiment;
The structural representation of the another kind of liquid crystal light valve that Fig. 3 provides for the utility model embodiment.
Embodiment
In order to make those skilled in the art person understand the technical scheme in the utility model better; To combine the accompanying drawing among the utility model embodiment below; Technical scheme among the utility model embodiment is carried out clear, intactly description; Obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all should belong to the scope of the utility model protection.
A kind of liquid crystal light valve as shown in Figure 2, that the utility model embodiment provides comprises: diaphragm 001, support membrane 002, PVAC polyvinylalcohol film 003, Triafol T TAC film 007, pressure sensitive adhesive PSA005 and stripping film 006.
Wherein, Triafol T TAC is the important materials in the production process of liquid crystal displays, is mainly used in protection LCD Polarizer.Its composition is very complicated, wherein comprises plasticizer, cosolvent, wetting agent, lubrication prescription and UV resistant agent or the like.TAC is still one of the highest macromolecular material of penetration so far with solvent casting film processing film forming.TAC has 93% above light penetration; The prescription and the degree of esterification of difference influence phase difference value; Phase difference value is about between 30～200nm at present; Has specific compensation ability for LCD, so, all can't be replaced by other material though TAC has water-intake rate height, dimensional stability and character of surface to be prone to shortcoming affected by environment.
Wherein, the TAC film has delay Re and two parameters of thickness direction retardation Rth in the face, and Re represents the stretching on the XY direction of principal axis, and Rth represents the stretching on the Z-direction, and they can expand the visual angle of light valve product.In practical application, can adopt the TAC of Re value 0nm～65nm and Rth value 130nm～220nm.
More wide for the visual angle that makes the light valve product, preferably, can adopt the TAC of Re value 50nm ± 10nm and Rth value 130nm ± 10nm.Like this, in the welding process of reality, not only can weld required device clearly, what is more important can be accomplished weld task in wide angular field of view.
Wherein, support membrane 002 also can be made up of TAC.
A kind of liquid crystal light valve that the utility model provides can effectively improve the visual angle, solves the problem of traditional liquid crystal light valve dependence of angle difference.
As shown in Figure 2, in the another kind of liquid crystal light valve that the utility model embodiment provides, comprising: diaphragm 001, support membrane 002, PVAC polyvinylalcohol film 003, COP008, pressure sensitive adhesive PSA005 and stripping film 006.
The utility model can also use cyclic olefin polymer COP008 to substitute TAC007.The not defeated TAC of the optical characteristics of COP, its mechanicalness, temperature tolerance and weatherability far surpass TAC, but price is high slightly.
Wherein, support membrane 002 also can be made up of the TAC film.
A kind of liquid crystal light valve that the utility model provides can effectively improve the visual angle, solves the problem of traditional liquid crystal light valve dependence of angle difference.
Each embodiment in this instructions all adopts the mode of going forward one by one to describe, and identical similar part is mutually referring to getting final product between each embodiment, and each embodiment stresses all is the difference with other embodiment.
The above only is the embodiment of the utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.
Claims (4)
1. a liquid crystal light valve is characterized in that, comprising: diaphragm, support membrane, polyvinyl alcohol film, three cellulose acetate membrane, pressure sensitive adhesive and stripping film.
2. liquid crystal light valve according to claim 1 is characterized in that said support membrane is made up of Triafol T.
3. a liquid crystal light valve is characterized in that, comprising: diaphragm, support membrane, polyvinyl alcohol film, cyclic olefin polymer, pressure sensitive adhesive and stripping film.
4. liquid crystal light valve according to claim 3 is characterized in that said support membrane is made up of Triafol T.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220110887 CN202615082U (en) | 2011-06-29 | 2012-03-21 | Liquid crystal light valve |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110179943.1 | 2011-06-29 | ||
| CN201110179943 | 2011-06-29 | ||
| CN 201220110887 CN202615082U (en) | 2011-06-29 | 2012-03-21 | Liquid crystal light valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202615082U true CN202615082U (en) | 2012-12-19 |
Family
ID=47348768
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100771787A Pending CN102854658A (en) | 2011-06-29 | 2012-03-21 | Liquid crystal light valve |
| CN 201220110887 Expired - Lifetime CN202615082U (en) | 2011-06-29 | 2012-03-21 | Liquid crystal light valve |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100771787A Pending CN102854658A (en) | 2011-06-29 | 2012-03-21 | Liquid crystal light valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN102854658A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102854658A (en) * | 2011-06-29 | 2013-01-02 | 信利半导体有限公司 | Liquid crystal light valve |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103995382A (en) * | 2014-04-23 | 2014-08-20 | 河北冀雅电子有限公司 | Method for manufacturing electric welding goggles |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2045636U (en) * | 1988-10-04 | 1989-10-11 | 王永明 | Liquid crystal goggles helmet for welding |
| CN100572479C (en) * | 2006-06-26 | 2009-12-23 | 达信科技股份有限公司 | Glue material, polarization plates and the manufacture method thereof of utilizing this glue material to fit |
| JP4814000B2 (en) * | 2006-07-26 | 2011-11-09 | リンテック株式会社 | Optical functional film bonding adhesive, optical functional film and method for producing the same |
| JP5070109B2 (en) * | 2007-04-27 | 2012-11-07 | 富士フイルム株式会社 | Cyclic olefin polymer, optical material using the same, polarizing plate and liquid crystal display device |
| CN201556009U (en) * | 2009-10-27 | 2010-08-18 | 河北冀雅电子有限公司 | Superwide-viewing-angle liquid crystal display (LCD) for electric welding goggles |
| CN202066988U (en) * | 2011-03-07 | 2011-12-07 | 深圳市盛波光电科技有限公司 | Polaroid for electric welding goggles |
| CN102854658A (en) * | 2011-06-29 | 2013-01-02 | 信利半导体有限公司 | Liquid crystal light valve |
-
2012
- 2012-03-21 CN CN2012100771787A patent/CN102854658A/en active Pending
- 2012-03-21 CN CN 201220110887 patent/CN202615082U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102854658A (en) * | 2011-06-29 | 2013-01-02 | 信利半导体有限公司 | Liquid crystal light valve |
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| Publication number | Publication date |
|---|---|
| CN102854658A (en) | 2013-01-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121219 |
|
| CX01 | Expiry of patent term |