Optical: systems and elements – Holographic system or element – Using a hologram as an optical element
Patent
1992-11-06
1993-12-07
Sikes, William L.
Optical: systems and elements
Holographic system or element
Using a hologram as an optical element
359 74, 359 79, G02F 11333, G02F 11337
Patent
active
052687813
ABSTRACT:
A homeotropic-alignment liquid crystal display device having a high photostability and a high contrast ratio and a method of producing the same are disclosed, wherein while two glass substrates having patterned transparent electrodes are set obliquely at a first angle with respect to an evaporation source, then a first SiO.sub.2 film is deposited on each of the glass substrates while irradiating the glass substrates with an ion beam emitted from an ion gun. Subsequently, the glass substrates are turned in their planes over an angle of 90 degrees and set obliquely at a second angle with respect to the evaporation source, and thereafter, a second SiO.sub.2 film is deposited on the respective first SiO.sub.2 films while irradiating the first SiO.sub.2 film with the ion beam. The first and second SiO.sub.2 films thus deposited on the glass substrates jointly form homeotropic-alignment undercoat films. A homeotropic alignment film is applied to each of the undercoat films, and after that the glass substrates are assembled together via spacers and filled with a liquid crystal.
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"Homeotropic-Alignment Full-Color LCD" by S. Yamauchi et al., SID 89 DIGEST; pp., 378-381 (1989).
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Asami Masanao
Konno Toshio
Natsuhori Hiroyuki
Shigeta Masanobu
Shimada Tadayuki
Gross Anita Pellman
Sikes William L.
Victor Company of Japan Ltd.
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