U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Liquid crystal display cell and method for manufacturing thereof

Patent 4705360 Issued on November 10, 1987. Estimated Expiration Date: Icon_subject July 5, 2005. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Automated liquid crystal display process
Patent #: 4228574
Issued on: 10/21/1980
Inventor: Culley ,   et al.

Liquid crystal display element with gap controlling material and process for production thereof Patent #: 4362771
Issued on: 12/07/1982
Inventor: Umeda ,   et al.

Inventors

Application

No. 06/752007 filed on 07/05/1985

US Classes:

349/123, Alignment layer349/155, Spacer349/158, Substrate349/187, NOMINAL MANUFACTURING METHODS OR POST MANUFACTURING PROCESSING OF LIQUID CRYSTAL CELL359/900METHODS

Examiners

Primary: Corbin, John K.
Assistant: Gallivan, Richard F.

Attorney, Agent or Firm

International Classes

G02F 1/13 (20060101)
G02F 1/1339 (20060101)
G02F 1/1337 (20060101)
G02F 1/137 (20060101)

Foreign Application Priority Data

1982-10-29 JP

Abstract

A liquid crystal display cell using cell substrates of a flexible organic polymer film and containing liquid crystals injected in a space between the cell substrates. Spacers are dispersed between the cell substrates and immobilized by an orienting layer for orienting liquid crystal molecules. A thin glass substrate can be substituted for the flexible organic polymer film. The liquid crystal display cell is produced by a method including the steps of creating a liquid crystal molecule orienting solution having spacers dispersed therein, applying the orienting film solution containing the spacers to the cell substrates, subjecting the applied solution to a curing treatment, sealing liquid crystals in a space formed between the cell substrates in which the interior thickness corresponds to the diameter of the spacers. The spacers are immobilized by the orienting film during the curing step. The spacers, rather than being mixed in the orienting solution before it is applied, can be scattered on the substrate before the solution is applied or scattered on the solution after it is applied to the substrate.

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