Is a
Patent attributes
Current Assignee
0
Patent Jurisdiction
Patent Number
Date of Patent
May 20, 2008
0Patent Application Number
105235150
Date Filed
June 9, 2004
0Patent Primary Examiner
Patent abstract
A projection-type display device includes a shielding unit and image signal correction units that divide the picture plane of the spatial light modulation element into a plurality of areas and perform correction on the image signal applied to the spatial light modulation element according to the current shielding amount of the shielding unit for each of the plurality of areas. Accordingly, appropriate uniformity correction is performed even when there is a change in the angular distribution of light emitted from the spatial light modulation element and reaching the screen.
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