Invention Grant
- Patent Title: Video display device
- Patent Title (中): 视频显示设备
-
Application No.: US13855350Application Date: 2013-04-02
-
Publication No.: US09438892B2Publication Date: 2016-09-06
- Inventor: Toshiki Onishi , Kazuhito Kimura
- Applicant: Panasonic Corporation
- 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: Hamre, Schumann, Mueller & Larson, P.C.
- Priority: JP2010-224986 20101004
- Main IPC: H04N13/04
- IPC: H04N13/04 ; G09G3/20 ; G09G3/34 ; G09G3/00

Abstract:
A video display device is provided to achieve local control for a high-quality 3D image while reducing extraneous radiation. A video display device that receives video signals from two video signal lines with an identical frame period and is capable of displaying a stereoscopic image based on left-eye and right-eye images, the video display device including: a liquid crystal drive unit; a liquid crystal panel; an LED backlight that has a plurality of light emission areas; a combination unit that generates a composite video signal by combining the video signals with the identical frame period; a local control unit that detects a video feature quantity such as the intensity value of the composite video signal and determines the light-emission intensity value of the light emission area; and an LED driver.
Public/Granted literature
- US20130215241A1 VIDEO DISPLAY DEVICE Public/Granted day:2013-08-22
Information query