发明名称 |
WIDE BAND VARIABLE TRANSMITTANCE OPTICAL DEVICE AND MIXTURE |
摘要 |
We describe a wide band variable transmission optical device, mixtures for use in such a device, and methods of making the same. The wide band optical device includes a cell comprising a guest-host mixture of a liquid crystal host and a dichroic guest dye material contained between a pair of plastic substrates. The optical device does not use polarizers. The liquid crystal host has an axis orientation that is alterable between a clear state orientation and a dark state orientation perpendicular thereto and the dichroic guest dye material includes one or more dichroic dyes. The optical device is characterized in that it exhibits a wide absorption band that is greater than 175 nm within a visible wavelength range of 400-700 nm and has a clear state transmission equal to or above 30% and a dark state transmission equal to or below 40%. |
申请公布号 |
EP2625564(B1) |
申请公布日期 |
2017.02.22 |
申请号 |
EP20110775870 |
申请日期 |
2011.10.04 |
申请人 |
Alphamicron Incorporated |
发明人 |
SUKHOMLINOVA, Ludmila;BODNAR, Volodymyr;MARTINCIC, Christine;SU, Linli;TAHERI, Bahman;KOSA, Tamas |
分类号 |
G02F1/1333;G02F1/137 |
主分类号 |
G02F1/1333 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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