Injection method for a liquid crystal display with a single orie

Details Injection method for a liquid crystal display with a single orie Injection method for a liquid crystal display with a single orie

1993-02-25

1995-12-19

Sikes, William L.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 78, 359102, G02F 11335, G02F 11337, G02F 113

Patent

active

054773563

ABSTRACT:
A method of manufacturing a liquid crystal display, includes the steps of: forming thin film transistors TFTs, pixel electrodes connected to the TFTs, and electrode lines connected to the TFTs, respectively on a surface of a first substrate; forming a common electrode on a surface of a second substrate which is not subjected to any orientation process, the first substrate having no orientation means; forming an orientation film on the common electrode on the second substrate and performing a rubbing process only on the orientation film on the second substrate wherein the first substrate is not subjected to a rubbing process; disposing the first and second substrates to face each other and to be spaced apart from each other by a predetermined distance, and injecting a nematic liquid crystal material that is in an isotropic phase thereof, which is heated to at least a phase transition temperature that provides an isotropic phase of said liquid crystal material, said liquid crystal material being injected in between the first and second substrates; and gradually cooling the heated liquid crystal material to a temperature at which the isotropic phase changes to a nematic liquid crystal phase. Cooling occurs in a direction from the second substrate toward the first substrate.

REFERENCES:
patent: 5237440 (1993-08-01), Watanabe et al.
DeZwart et al., "Electric Field-Induced . . . Anisotropy", physics letters, vol. 55A, No. 1, Nov. 1975, pp. 41-42.
Patent Abstracts of Japan, vol. 016, No. 216 (P-1356) 21 May 1992 & JP-A-04 039 627 (Sanyo Chem. Ind. Ltd.) 10 Feb. 1992.

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