Alignment layer comprising a first and second sublayer

Details Alignment layer comprising a first and second sublayer Alignment layer comprising a first and second sublayer

2007-11-27

2007-11-27

Dye, Rena (Department: 1772)

Stock material or miscellaneous articles

Liquid crystal optical display having layer of specified...

Alignment layer of specified composition

C349S125000, C349S129000, C283S094000

Reexamination Certificate

active

10490157

ABSTRACT:
The invention pertains to an alignment layer capable of aligning liquid crystal material, the alignment layer comprising: a first sublayer having regions capable of aligning the liquid crystal material in a first alignment, a second sublayer having regions capable of aligning the liquid crystal material in a second alignment, the first and the second alignment being different, the second sublayer overlaying the first sublayer and covering in accordance with a pre-determined pattern the first sublayer to provide, at desired locations, second sublayer regions capable of aligning the liquid crystal material and, at desired locations, regions of the underlying first sublayer that are not covered by the second sublayer, and to a method of making this alignment layer. The invention further relates to an optical or electro-optical device comprising said alignment layer.

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patent: A 10-153783 (1998-06-01), None
Gupta et al.; “Design of Surfaces for Patterned Alignment of Liquid Crystals on Planar and Curved Substrates”; XP-002115847; Science, vol. 276; Jun. 6, 1997; pp. 1533-1536.

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