Invention Grant
- Patent Title: Video-display control device for correcting a video signal and controlling a backlight
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Application No.: US14829859Application Date: 2015-08-19
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Publication No.: US09659519B2Publication Date: 2017-05-23
- Inventor: Takashi Akita , Takuma Shimura , Terumitsu Suenaga
- Applicant: Panasonic Intellectual Property Management Co., Ltd.
- Applicant Address: JP Osaka
- Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee Address: JP Osaka
- Agency: RatnerPrestia
- Priority: JP2010-189003 20100826
- Main IPC: G09G3/36
- IPC: G09G3/36 ; G09G3/20 ; G02F1/133 ; G09G3/34 ; H04N5/57 ; G02F1/1335 ; H04N21/431 ; H04N21/44

Abstract:
In a video display control device, a control data generating section allocates a part of a dynamic range of a high gradation region of a video signal to a low gradation region, and a backlight controlling section controls a light emission luminance of a backlight so as to cancel an increase or decrease of a mean luminance of a video displayed on a screen in accordance with an increase or decrease of the mean luminance of a video signal after correction with respect to a mean luminance of the video signal.
Public/Granted literature
- US20150364072A1 VIDEO-DISPLAY CONTROL DEVICE Public/Granted day:2015-12-17
Information query
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