Hybrid polymer materials for liquid crystal alignment layers
AssigneeElsicon, Inc.
InventorsWayne M. Gibbons, Michael G. P. Reppy, Patricia A. Rose, Hanxing Zheng
Life of this patent
Estimating the term…
Abstract
The present invention provides novel hybrid polymer optical alignment layers for inducing alignment of a liquid crystal medium. Hybrid polymers of this invention comprise at least one component of a macromonomer or polymer within the class of polyimide, polyamic acids and esters thereof, and at least one additional component from the group consisting of an addition monomer, monomers and addition polymer that are covalently bonded with the first component to form a copolymer. The invention further describes liquid crystal displays comprising the novel branched hybrid polymer optical alignment layers.
Claims21
A branched hybrid polymer that is prepared from
- (a) at least one component selected from the group consisting of polyimide, poly(amic acid) and esters thereof wherein the at least one component comprises at least one addition polymerization moiety, and
- (b) at least one component selected from the group consisting of a first addition monomer, one or more second addition monomers, different from the first addition monomer, and addition polymer wherein the at least one component comprises photoreactive group(s) capable of forming a covalent bond after exposure to light;
- and
- wherein the components (a) and (b) are covalently bonded to form a copolymer.
Dependencies are inferred from the claim text.