Optical: systems and elements – Holographic system or element – Using a hologram as an optical element
Patent
1993-08-04
1995-06-20
Sikes, William L.
Optical: systems and elements
Holographic system or element
Using a hologram as an optical element
359 62, 445 24, G02F 113, G02F 11335
Patent
active
054265223
ABSTRACT:
An empty cell is produced by adhering an array substrate and a counterelectrode substrate with a sealant resin of a predetermined height. A mixture liquid comprising liquid crystal and a polymerizable photosetting resin is injected into the empty cell. Then, the cell is interposed between a flat rigid bench and a flat rigid plate, and the mixture liquid is heated to make it transparent. Then, the thickness of the mixture liquid is measured with an interferometer. If the measured thickness deviates from a predetermined range, the flat rigid plate is pressed until the measured thickness changes into the predetermined range. Then, the mixture liquid is irradiated to form a liquid crystal/resin composite layer. Then, the pressure is removed. Thus, a liquid crystal/resin composite layer of uniform thickness can be obtained.
REFERENCES:
patent: 4435047 (1984-03-01), Fergason
patent: 4944576 (1990-06-01), Lacker et al.
patent: 5150232 (1992-09-01), Gunkima et al.
patent: 5278685 (1994-01-01), Iwamoto et al.
patent: 5305126 (1994-04-01), Kobayashi et al.
Takahara Hiroshi
Yamamoto Masao
Matsushita Electric - Industrial Co., Ltd.
Parker Kenneth
Sikes William L.
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