Invention Grant
- Patent Title: Display apparatus
- Patent Title (中): 显示装置
-
Application No.: US13697775Application Date: 2011-04-13
-
Publication No.: US09099042B2Publication Date: 2015-08-04
- Inventor: Koichi Sugiyama , Taikoh Akashi
- Applicant: Koichi Sugiyama , Taikoh Akashi
- Applicant Address: JP Osaka
- Assignee: SHARP KABUSHIKI KAISHA
- Current Assignee: SHARP KABUSHIKI KAISHA
- Current Assignee Address: JP Osaka
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2010-110675 20100512; JP2010-110676 20100512
- International Application: PCT/JP2011/059216 WO 20110413
- International Announcement: WO2011/142202 WO 20111117
- Main IPC: G09G5/02
- IPC: G09G5/02 ; G09G3/34 ; G09G3/36

Abstract:
A high luminance display apparatus is provided. When a spectral radiance of a backlight at a time point of factory shipment is less than a spectral radiance of external light, a CPU generates a correction matrix for performing color correction so that color produced by external light, i.e., color produced by reflection light of external light by a half mirror conforms to color produced by only irradiation light of the backlight, transmits the generated correction matrix to a video image signal processing section as parameter information, and causes execution of color correction based on the parameter information. The CPU generates a correction matrix based on a spectral radiance of external light detected by a second spectral radiance sensor, a spectral radiance of the backlight detected at the time point of factory shipment, and spectral transmittance of a color filter as well as a color-matching function.
Public/Granted literature
- US20130063471A1 DISPLAY APPARATUS Public/Granted day:2013-03-14
Information query