Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Patent
1996-10-10
1998-01-06
Sikes, William L.
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
349 5, 349 63, 349 67, 349 42, G02F 11335, G02F 1136
Patent
active
057060665
ABSTRACT:
An object of the present invention iso attain switching at a high contrast ratio and a high light utilization factor. Incident light from a second surface of a prism is not reflected by the surface of a transmission substrate but guided to refractive index substance layers. The incident light is split into light reflected by the interface between the refractive index substance layers and light passing through the interface in accordance with the relationship between the refractive indices of the refractive index substance layers. The transmitted light is reflected by the surface of a reflecting electrode tilted by angle .delta. with respect to the surface of an insulating substrate. The light reflected by the interface goes out in a direction different from the direction of the light reflected by the surface of the reflecting electrode. The light intensities of the reflected light and the transmitted light at the interface can be controlled by applying a voltage across the reflecting electrode and the transparent electrode and by changing the refractive index of the variable refractive index substance layer.
REFERENCES:
patent: 3891309 (1975-06-01), Bonne
patent: 5408345 (1995-04-01), Mitsui et al.
patent: 5432624 (1995-07-01), Black
N. Sekimura, Japanese Laid-Open Patent Publication No. 59007337-A, Published Jan. 14, 1984.
M. Ishikawa, Japanese Laid-Open Patent Publication No. 6258672-A, Published Sep. 16, 1994.
S. Yutaka, "Reflection Type Optical Modulation Device", Japanese Laid-Open Patent Publication No. 9-15550, Laid Open on Jan. 17, 1997.
Kimura Naofumi
Sawayama Yutaka
Conlin David G.
Daley, Jr. William J.
Ngo Julie
Sharp Kabushiki Kaisha
Sikes William L.
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