Optical: systems and elements – Holographic system or element – Using a hologram as an optical element
Patent
1992-12-18
1995-05-30
Sikes, William L.
Optical: systems and elements
Holographic system or element
Using a hologram as an optical element
359 51, G02F 11335
Patent
active
054207061
ABSTRACT:
A polymer-dispersed liquid crystal electro-optical device which realizes a super-fine display, comprising a pair of light-transmitting substrates having provided thereon a plurality of electrodes being arranged in such a manner that the surfaces having the electrodes face each other, and an electro-optical modulating layer being incorporated between said pair of substrates, said electro-optical modulating layer comprising a liquid crystal material having anisotropy in refractive index and said liquid crystal material being arranged in such a manner that the major axes of the liquid crystal molecules show random orientation, so that the amount of transmitted light can be controlled by causing light scattering on its passing through the electro-optical modulating layer, wherein, a light shield portion having a height H is provided among said plurality of electrodes in such a manner that the height H satisfies a relation
REFERENCES:
patent: 4591240 (1986-05-01), Masaki et al.
patent: 4600274 (1986-07-01), Morozumi
Konuma Toshimitsu
Yamazaki Shunpei
Ferguson Jr. Gerald J.
Mai Huy
Robinson Eric J.
Semiconductor Energy Laboratory Co,. Ltd.
Sikes William L.
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