Patent ID: 7622166
Filing Date: 2009-11-24
Classification: C09K,G02F

Abstract:
1. An optical element comprising: a light transparent substrate; a first birefringence layer provided on the substrate, said first birefringence layer comprising a surfactant and a crosslinked polymer formed from a polymerizable liquid crystal having rodlike molecules and an alkyl fluoride group-containing silane coupling agent, wherein the alkyl fluoride group-containing silane coupling agent and the surfactant both homeotropically align the polymerizable liquid crystal having rodlike molecules to form said crosslinked polymer in a state of homeotropic alignment; and a light absorption-type color filter; wherein said crosslinked polymer has a three-dimensionally crosslinked structure whereby said polymerizable liquid crystal having rodlike molecules holds the state of homeotropic alignment; and wherein said first birefringence layer is provided on the substrate so as to cover the light absorption-type color filter, or said light absorption-type color filter is provided on the first birefringence layer.