Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Jun Koyama0
Shunpei Yamazaki0
Date of Patent
March 16, 2010
0Patent Application Number
109028060
Date Filed
August 2, 2004
0Patent Primary Examiner
Patent abstract
A light shield film is provided adjacent to an anode of an EL element that consists of the anode, an EL layer, and a cathode. The anode and the cathode are transparent or semitransparent to visible light and hence transmit EL light. With this structure, ambient light is absorbed by the light shield film and does not reach an observer. This prevents an external view from appearing on the observation surface.
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