Liquid crystal cell and method for assembly thereof
First Claim
1. A method for assembling liquid crystal cells having a thin, uniform cell gap, comprising the steps of:
- diluting a photo-definable polymeric resin with a solvent;
applying the diluted photo-definable polymeric resin on a substrate;
patterning the diluted photo-definable polymeric resin by selective exposure to a light; and
selectively removing portions of the diluted photo-definable polymeric resin that were not exposed to the light, resulting in a viscous, uncured resin pattern that will maintain its physical structure during thermal curing, and that is adapted to serve as a spacer, an edge seal and an adhesive upon thermal curing.
7 Assignments
0 Petitions
Accused Products
Abstract
A method and apparatus for assembly of liquid crystal cells with a thin (<4 pm), uniform (±100 μm) cell gap. The method can be used for the assembly of either individual or multiple liquid crystal cells on a single substrate. The method uses a photo-definable polymeric resin as both an edge seal and a spacer and has several important steps: spin-coating defines the cell gap, patterning defines the cell structure, and thermocompression bonding provides adhesion. The method for assembling liquid crystal cells having a thin, uniform cell gap, comprises the steps of: diluting a photo-definable polymeric resin with a solvent; applying the diluted photo-definable polymeric resin on a substrate; patterning the diluted photo-definable polymeric resin by selective exposure to a light; and selectively removing portions of the diluted photo-definable polymeric resin based upon exposure to the light resulting in a resin pattern.
-
Citations
30 Claims
-
1. A method for assembling liquid crystal cells having a thin, uniform cell gap, comprising the steps of:
-
diluting a photo-definable polymeric resin with a solvent; applying the diluted photo-definable polymeric resin on a substrate; patterning the diluted photo-definable polymeric resin by selective exposure to a light; and selectively removing portions of the diluted photo-definable polymeric resin that were not exposed to the light, resulting in a viscous, uncured resin pattern that will maintain its physical structure during thermal curing, and that is adapted to serve as a spacer, an edge seal and an adhesive upon thermal curing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
-
-
19. A liquid crystal cell, comprising:
-
a bottom substrate; a top substrate arranged above said bottom substrate; and a diluted photo-defined, thermally cured polymeric resin adhering the bottom substrate to the top substrate, providing a thin uniform cell gap and also serving as a spacer and an edge seal wherein the photo-definable polymeric resin is photo-BCB. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
-
Specification