Invention Grant
- Patent Title: Image display device and control method thereof
- Patent Title (中): 图像显示装置及其控制方法
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Application No.: US14183880Application Date: 2014-02-19
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Publication No.: US09336746B2Publication Date: 2016-05-10
- Inventor: Shinya Oda
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2013-034802 20130225; JP2013-047564 20130311
- Main IPC: G09G5/02
- IPC: G09G5/02 ; G09G3/14 ; H04N1/60 ; H04N5/66 ; G09G3/36 ; G09G3/34

Abstract:
An image display device is provided in which a difference in color appearance between visual angles can be reduced. The image display device includes: a light-emitting unit including a first light source configured such that a peak wavelength of a spectral spectrum of the light source is within a wavelength region in which a difference between color matching functions of different visual angles is small and a second light source that differs from the first light source; a control unit configured to switch a light source to be lighted to one of the first light source and the second light source based on an instruction; and a display panel that is illuminated by the light-emitting unit.
Public/Granted literature
- US20140240341A1 IMAGE DISPLAY DEVICE AND CONTROL METHOD THEREOF Public/Granted day:2014-08-28
Information query