Method of manufacturing liquid crystal devices

Details Method of manufacturing liquid crystal devices Method of manufacturing liquid crystal devices

1991-05-22

1993-03-09

Sikes, William L.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 80, 359 90, G02F 11335, G02F 11339, G02F 1137

Patent

active

051930196

ABSTRACT:
An improved method for manufacturing liquid crystal device is described. The method comprises mating a pair of substrates with an inner space therebetween, sealing the periphery of the mated substrates except for inlet ports, placing the mated substrates in a vacuum chamber, evacuating air from the inner space between the substrates by virtue of the differential pressure between the inner space and the vacuum chamber, pouring a liquid crystal material into the inlet ports, introducing the liquid crystal material into the inner space by elevating the pressure of the vacuum chamber at an elevated temperature, cooling the liquid crystal material, and closing the inlet ports by means of a sealing member. The removal of the superfluous portion of the liquid crystal material is done only after closing of the inlet ports.

REFERENCES:
patent: 4586791 (1986-05-01), Isogai et al.
patent: 4721367 (1988-01-01), Yoshinaga et al.
patent: 4917473 (1990-04-01), Watanabe
patent: 4976516 (1990-12-01), Carrington

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