Invention Grant
- Patent Title: Image display apparatus featuring improved contrast
- Patent Title (中): 具有改善对比度的图像显示装置
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Application No.: US12229320Application Date: 2008-08-21
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Publication No.: US08228351B2Publication Date: 2012-07-24
- Inventor: Aruo Miura
- Applicant: Aruo Miura
- Applicant Address: JP
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP
- Agency: Lerner, David, Littenberg, Krumholz & Mentlik, LLP
- Priority: JPP2007-224515 20070830
- Main IPC: G09G5/10
- IPC: G09G5/10 ; G09G3/10 ; G09G5/02 ; G03B21/20

Abstract:
An image display apparatus may include a light source, a spatial light modulation element, light quantity adjustment section, image correction section and re-adjustment section. The re-adjustment section may perform re-adjustment such that, of a light quantity adjustment target and a luminance level correction target, at least the luminance level correction target is re-adjusted to a value in an opposite direction from a correction direction by the image correction section, in a case that a final display luminance level, representing a luminance of the light modulated by the spatial modulation element, is higher than a predetermined luminance level, where the luminance level correction target represents a correction target value in the luminance level of the video signal, employed by the image correction section, and the light quantity adjustment target represents a adjustment target value in the light quantity, employed by the light quantity adjustment section.
Public/Granted literature
- US20090135208A1 Image display apparatus Public/Granted day:2009-05-28
Information query