Optical: systems and elements – Holographic system or element – Using a hologram as an optical element
Patent
1992-05-19
1994-05-24
Sikes, William L.
Optical: systems and elements
Holographic system or element
Using a hologram as an optical element
359 71, 359 72, 359 73, G02F 1133
Patent
active
053154207
ABSTRACT:
An optical writing type liquid crystal display device is provided with: two twisted nematic liquid crystal cells, each of which has a direction different from each other on twist; a first glass substrate disposed in one liquid crystal cell; and a second glass substrate disposed in another liquid crystal cell. The second glass substrate is laminated to the first glass substrate adjacent to the second glass substrate so as to be at right angles with each other on rubbing directions of the glass substrates. The two twisted nematic liquid crystal cells are arranged such that a polarization axis of a reading light incident onto the two twisted nematic liquid crystal cells is not coincident with the rubbing directions of the two twisted nematic liquid crystal cells.
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H. Ikeno, et al., "Compensated Homogeneous Aligned Liquid-Crystal Display For B/W Display", Proceedings of the SID. Voir Groupe, vol. 32, No. 4, 1991, pp. 351-354.
Nakamura Hisakazu
Narutaki Yozo
Conlin David G.
Mai Huy
Neuner George W.
Sharp Kabushiki Kaisha
Sikes William L.
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