CN2182416Y - High penetration liquid crystal optics for safety goggles - Google Patents
High penetration liquid crystal optics for safety goggles Download PDFInfo
- Publication number
- CN2182416Y CN2182416Y CN 94202003 CN94202003U CN2182416Y CN 2182416 Y CN2182416 Y CN 2182416Y CN 94202003 CN94202003 CN 94202003 CN 94202003 U CN94202003 U CN 94202003U CN 2182416 Y CN2182416 Y CN 2182416Y
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- CN
- China
- Prior art keywords
- liquid crystal
- layer
- utility
- model
- agent film
- 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
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 40
- 230000035515 penetration Effects 0.000 title description 2
- 239000011521 glass Substances 0.000 claims abstract description 18
- 239000000975 dye Substances 0.000 claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 6
- 239000007822 coupling agent Substances 0.000 claims abstract description 5
- 230000035699 permeability Effects 0.000 claims abstract description 4
- 230000001681 protective effect Effects 0.000 claims description 10
- 239000000758 substrate Substances 0.000 claims description 10
- 239000011149 active material Substances 0.000 claims description 3
- 239000002390 adhesive tape Substances 0.000 claims description 3
- 239000013078 crystal Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 230000010415 tropism Effects 0.000 abstract 2
- 230000005684 electric field Effects 0.000 description 5
- 239000004988 Nematic liquid crystal Substances 0.000 description 3
- 210000002858 crystal cell Anatomy 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005388 cross polarization Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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- Liquid Crystal (AREA)
Abstract
The utility model belongs to the structural design field of a pair of safe spectacles. The utility model particularly the structure of a spectacle lens, and the inner surface of an upper and a lower two layers of electro-conductive glass base sheets are coated with a layer of coupling agent film and a one layer of tropism agent film. A mixed liquid crystal layer made of photoactive materials, black dyes and liquid crystals is arranged between the tropism agent films of the two base sheets. The periphery of the two conductive glass base sheets is coated with sealing rubber strips to cause the sealing rubber strips to be combined into a box body. The thickness of the liquid crystal layer is 7 mu m to 12 mu m, and the evenness is less than 0.5 mu m. The utility model has the advantages that permeability, low operating voltage and good uniformity.
Description
The utility model belongs to the LCD Technology field, particularly is used for the structural design of the liquid crystal lens of protective glasses.
People at work or some occasion in the daily life need wear protective glasses, incide the light intensity of eyes with adjustment, reach the purpose of protection eyes.Along with lcd technology is increasingly mature, cost descends, and making becomes possibility with used for liquid crystal display device in safety goggles.
Existing twisted nematic liquid crystal display (TN-LCD), need to use the cross polarization sheet, when bright attitude (electric field is opened), its absolute transmitance is less than 20%, thereby is not suitable for preparing protective glasses, another kind of courage steroid-nematic liquid crystal displays is without polaroid, have bigger bright attitude transmitance and bigger visual angle, be used for aircraft, during the instrument and meter on the automobile shows, this LCD panel is thick to be 18～20 μ m, and driving voltage is generally about 28V.Thereby be not suitable for protective glasses yet.Because the LCD panel that protective glasses is used needs higher printing opacity homogeneity, operating voltage can not be too high simultaneously, otherwise will increase device cost, but also increased the volume and the manufacture difficulty of device.
The purpose of this utility model is to overcome the weak point that above-mentioned LCD panel prepares protective glasses, and the structure of existing LCD panel is improved, and makes it have high permeability, the printing opacity good uniformity, and characteristics such as low-work voltage satisfy the requirement of preparation protective glasses.
The utility model is designed a kind of protective glasses high permeability liquid crystal lens, scribble one deck coupling agent film, one deck alignment agent film respectively on the conductive layer of two-layer electro-conductive glass substrate inside surface about it is characterized in that comprising, between the alignment agent film of said two substrates, be filled with the mixed liquor crystal layer that is mixed and made into by light active material, black dyes and liquid crystal, said two electro-conductive glass substrate edges are printed on the sealing-in adhesive tape makes it constitute a box body, said thickness of liquid crystal layer is 7～12 μ m, and its uniformity coefficient is less than 0.5 μ m.
The utility model adds light active material (as CB-15, CN etc.) in nematic liquid crystal makes the structure of liquid crystal become helicoidal structure, i.e. molecule hierarchal arrangement, and the director of molecule is all different in the different layers, and its structure is a spirality.In the liquid crystal of this helicoidal structure, add black positivity dyestuff (Np type dye), the long axis direction of dye molecule is consistent with the long axis of liquid crystal molecule direction and be orientated with liquid crystal molecule, thereby the arrangement of dye molecule also becomes helically twisted shape, when closing, electric field all exists dye molecule in the liquid crystal cell on any direction, when light incides liquid crystal layer and passes through liquid crystal layer, light is sponged gradually, as long as guarantee that the number of turns of liquid crystal molecule distortion in the liquid crystal cell is enough, when dark attitude, can all sponge incident light basically.When electric field was opened, dye molecule was the same with liquid crystal molecule also with electric field orientation, and this moment, dyestuff did not absorb incident light, was bright field.Because without polaroid, so very high transmitance and bigger visual angle are arranged when bright attitude.
For guaranteeing the homogeneity of liquid crystal lens, require the pitch of mixed liquid crystal that certain limit is arranged, promptly liquid crystal bed thickness d and pitch p should satisfy relational expression: d=1/2 pn(n=1,2,3 ...).
The thickness range that the utility model takes suitably to regulate the component control LCD panel of mixed liquid crystal can reach the reduction operating voltage within 7～12 μ m, keep the purpose of certain bright, dark attitude transmitance.For guaranteeing that there is uniform color the viewing area, the unevenness of the utility model eyeglass is less than 0.5 μ m.For guaranteeing that protective glasses has higher transmittance when normally wearing, so necessary added electric field, the type of drive that the utility model adopts is opposite with general liquid crystal display.
The utility model operating voltage is less than 10V, transmitance 〉=45%.Brief Description Of Drawings:
Fig. 1 is the utility model outside drawing;
Fig. 2 is the utility model cross-sectional structure enlarged diagram.
Be described in detail as follows in conjunction with the accompanying drawings:
Fig. 1 is the outside drawing (the another eyeglass is identical, and direction is opposite) of a liquid crystal lens of the utility model;
1 is eyeglass, and 2,3 is electrode outlet line, and 3 is sealing strip.
Fig. 2 is that the utility model eyeglass xsect constitutes synoptic diagram, and for clarity sake, each layer thickness all amplifies, but disproportionate.Wherein 11,12 is last lower glass substrate, and 21,22 is transparency conducting layer, and 31,32 is coupling agent layer, and 41,42 is the oriented material layer, and 51 is sealing joint strip, and 61 is the mixed liquor crystal layer.
The utility model is designed two kinds of embodiment, and its technological process (technological process employing known technology) and parameter are described below respectively:
Upper and lower glass substrate (11,12) surface is coated with one deck coupling agent (31,32) oven dry equably on its conductive layer (21,22) after cleaning, drying, be coated with one deck orientation of polyimide material (41,42) again, with sealing-in around the substrate, the frictional direction of upper and lower substrate can be parallel also antiparallel to rubbing during the envelope box with sealing-in adhesive tape 51.Liquid crystal bed thickness 10 μ m control its bed thickness homogeneity in 10 μ m ± 0.5 mu m range.
Mixed liquid crystal is formed: CB15: black dyes: liquid crystal=3.5%:3%:93.5%
In above-mentioned liquid crystal mixolimnion, pitch P=3.9 μ m, liquid crystal bed thickness this moment (d) is about 2.5 times of pitch (p).Under the 10V driving voltage, the relative transmitance of bright attitude is: 48%; The dark relative transmitance of attitude is: 9%
It is identical with embodiment 1 that liquid crystal cell was made process, liquid crystal layer thickness control 10 μ m ± 0.5 μ m.
The mixed liquid crystal prescription is: CB15: black dyes: liquid crystal=2.6%:3%:94.4% in above-mentioned liquid crystal mixolimnion, pitch P=5.3 μ m, liquid crystal bed thickness this moment (d) is about 2 times of pitch (p).Under the 10V driving voltage, the relative transmitance of bright attitude is: 52%; The dark relative transmitance of attitude is: 20%(V=0).
Claims (1)
1, a kind of protective glasses high permeability liquid crystal lens, scribble one deck coupling agent film, one deck alignment agent film respectively on the conductive layer of two-layer electro-conductive glass substrate inside surface about it is characterized in that comprising, between the alignment agent film of said two substrates, be filled with the mixed liquor crystal layer that is mixed and made into by light active material, black dyes and liquid crystal, said two electro-conductive glass substrate edges are printed on the sealing-in adhesive tape makes it constitute a box body, said thickness of liquid crystal layer is 7～12 μ m, and its uniformity coefficient is less than 0.5 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94202003 CN2182416Y (en) | 1994-01-31 | 1994-01-31 | High penetration liquid crystal optics for safety goggles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94202003 CN2182416Y (en) | 1994-01-31 | 1994-01-31 | High penetration liquid crystal optics for safety goggles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2182416Y true CN2182416Y (en) | 1994-11-09 |
Family
ID=33821904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94202003 Expired - Fee Related CN2182416Y (en) | 1994-01-31 | 1994-01-31 | High penetration liquid crystal optics for safety goggles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2182416Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015024323A1 (en) * | 2013-08-20 | 2015-02-26 | 京东方科技集团股份有限公司 | Liquid crystal contact lens |
-
1994
- 1994-01-31 CN CN 94202003 patent/CN2182416Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015024323A1 (en) * | 2013-08-20 | 2015-02-26 | 京东方科技集团股份有限公司 | Liquid crystal contact lens |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |