Optical: systems and elements – Holographic system or element – Using a hologram as an optical element
Patent
1990-08-09
1992-08-04
Miller, Stanley D.
Optical: systems and elements
Holographic system or element
Using a hologram as an optical element
359 74, 359 83, 359 84, 340706, 340784, 178 18, G02F 1133, G08C 2100, G09G 302, G09G 336
Patent
active
051364042
ABSTRACT:
A liquid crystal display device includes a base supporting a laminate which has an LC-layer (liquid crystal layer) formed of polymeric material holding micro-volumes of liquid crystal material, and a conductive layer on one surface of the LC-layer, the other surface of the LC-layer being substantially conductor-free, and apparatus for transitory application of potential through the LC-layer to the conductive layer to produce an image. The LC-layer has at least about 50% by weight of the polymeric material and less than 50% of the liquid crystal material by weight of the LC-layer, and the duration of image retention after transitory application of potential ceases is significantly extended.
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Harris, III John F.
Nobile Frederick E.
Silverman Gary S.
Miller Stanley D.
Trice Ron
Western Publishing Company
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