Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Masaru Suzuki0
Fumihisa Hanzawa0
Date of Patent
August 24, 2010
0Patent Application Number
092419890
Date Filed
February 2, 1999
0Patent Primary Examiner
Patent abstract
The liminance within the viewing angle of an LCD device is increased by using an optical film of transparent material. The film has a first surface having a wave structure including a plurality of isosceles triangle prisms arranged side-by-side, and a second surface having an optically rough structure for performing diffuse transmission. The film may also have a first surface having a structure including a plurality of quadrangular prisms arranged side-by-side, and a second surface having an optically rough structure for performing diffuse transmission.
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