Patent ID: 7878670
Filing Date: 2011-02-01
Classification: G02F,H01L

Abstract:
1. An illumination apparatus for a liquid crystal display apparatus having a plurality of transmission parts arranged two-dimensionally, comprising: a plurality of aspherical lenses, which is installed in response to each of a plurality of said transmission parts and concentrates light for each of a plurality of said transmission parts; a plurality of light emission parts installed in response to each focal point position of a plurality of said aspherical lenses; and an electroluminescence layer containing a non-light emission region installed between a plurality of said light emission parts themselves, wherein each of a plurality of said aspherical lenses has an inner side lens face containing an intersection with an optical axis of said aspherical lenses, and an outer side lens face enclosing said inner side lens face, and curvature in said outer side lens face is smaller than curvature in said inner side lens face; characterized in that each of a plurality of said aspherical lenses is divided to a circular body having said intersection at a lens face, and a ring-like body enclosing said circular body, based on a division line in response to a top view shape of said aspherical lens.