Invention Grant
- Patent Title: Illumination device and liquid crystal display device provided therewith
- Patent Title (中): 照明装置和与此相关的液晶显示装置
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Application No.: US12293635Application Date: 2006-11-02
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Publication No.: US08018427B2Publication Date: 2011-09-13
- Inventor: Tetsuya Hamada
- Applicant: Tetsuya Hamada
- Applicant Address: JP Osaka
- Assignee: Sharp Kabushiki Kaisha
- Current Assignee: Sharp Kabushiki Kaisha
- Current Assignee Address: JP Osaka
- Agency: Keating & Bennett, LLP
- Priority: JP2006-125093 20060428
- International Application: PCT/JP2006/321939 WO 20061102
- International Announcement: WO2007/125623 WO 20071108
- Main IPC: G09G3/36
- IPC: G09G3/36 ; G09G3/32

Abstract:
An illumination device includes a light source section with white LEDs on a side of a light guide plate. The white LED includes a first white LED and a second white LED, and they emit light of different chromaticities. In a chromaticity diagram, a white color area is divided into two subareas by a dividing line passing through a target chromaticity; light emitted by the first white LED falls within a first subarea, and light emitted by the second white LED falls within a second subarea. By individually controlling the light emission of the first white LED and the second white LED, it is possible to emanate a desired white light from the light guide plate.
Public/Granted literature
- US20100231613A1 ILLUMINATION DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE PROVIDED THEREWITH Public/Granted day:2010-09-16
Information query
IPC分类: