Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Chih-Lun Chuang0
Date of Patent
June 19, 2007
0Patent Application Number
111294770
Date Filed
May 16, 2005
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A prism sheet for a LCD backlight module is provided. The prism sheet contains a base layer and a prism layer formed on a side of the base layer. The prism layer contains multiple parallel latitudinal and longitudinal prism lenses intersecting with each other. As such, the prism sheet could provide both latitudinal and longitudinal convergence for the scattered lights from the diffusion film. Additionally, by adjusting the apex angles, shapes, and heights of the prism lenses, optimal horizontal and vertical viewing angles of the LCD display could be achieved.
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