Patent ID: 8066905
Filing Date: 2011-11-29
Classification: C09K,G02B,G02F

Abstract:
1. A method of producing an optical element, comprising: coating a birefringence layer composition liquid comprising a liquid crystal monomer having a polymerizable group at a terminal thereof and an additive for promoting a homeotropic orientation of the liquid crystal monomer on a light transmitting base material; homeotropically orienting the liquid crystal monomer; crosslinking the liquid crystal monomer to form a birefringence layer to fix an orientation of the liquid crystal monomer; baking the birefringence layer to improve heat resistance and adhesiveness of the birefringence layer by heating at a predetermined temperature; and removing an additive layer formed on an upper surface of the birefringence layer during baking by applying a solvent treatment with a spin coater, wherein: