Invention Grant
US08456495B2 Power control method of light emitting device for image display, light emitting device for image display, display device and television receiver
有权
用于图像显示的发光装置的电力控制方法，用于图像显示的发光装置，显示装置和电视接收器
- Patent Title: Power control method of light emitting device for image display, light emitting device for image display, display device and television receiver
- Patent Title (中): 用于图像显示的发光装置的电力控制方法，用于图像显示的发光装置，显示装置和电视接收器
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Application No.: US13063790Application Date: 2009-07-17
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Publication No.: US08456495B2Publication Date: 2013-06-04
- Inventor: Kohji Fujiwara , Takayuki Murai , Tomohiko Yamamoto
- Applicant: Kohji Fujiwara , Takayuki Murai , Tomohiko Yamamoto
- Applicant Address: JP Osaka
- Assignee: Sharp Kabushiki Kaisha
- Current Assignee: Sharp Kabushiki Kaisha
- Current Assignee Address: JP Osaka
- Agency: KEating & Bennett, LLP
- Priority: JP2008-264292 20081010
- International Application: PCT/JP2009/062946 WO 20090717
- International Announcement: WO2010/041504 WO 20100415
- Main IPC: G09G5/10
- IPC: G09G5/10 ; G09G3/36
Abstract:
In a method of controlling power of a light emitting device for image display that irradiates illumination light from divided regions, light emission brightness data of each light emitting element of the light emitting device is determined based on image data for image display (S20). Power in each region and total light emission power are computed based on the light emission brightness data of each light emitting element for each region (S40). If the computed total light emission power exceeds predetermined allowable power, the power in each region is limited so that the total light emission power is equal to or less than the predetermined allowable power (S50).
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