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Patent Searching and Data


Title:
PICTURE DISPLAY DEVICE
Document Type and Number:
Japanese Patent JPH07123342
Kind Code:
A
Abstract:

PURPOSE: To provide a picture display device capable of controlling the brightness of pictures without damaging the quality of displayed pictures.

CONSTITUTION: A light reduction filter 4 composed of a liquid crystal shutter or the like is arranged on a transmission light control type display 2 composed of an LCD or the like for which input signals and a light emission amount are provided with nonlinear characteristics. Thus, the brightness of the entire display pictures can be controlled from the extremely low level of luminance to a bright level. As a result, the faithful brightness of the display pictures can be reproduced and the paint-out of black and white does not occur.


Inventors:
KAWAMURA AKIRA
Application Number:
JP26930693A
Publication Date:
May 12, 1995
Filing Date:
October 28, 1993
Export Citation:
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Assignee:
SONY CORP
International Classes:
H04N5/66; G02F1/133; G09G3/36; (IPC1-7): H04N5/66
Attorney, Agent or Firm:
Fujiya Shiga (1 person outside)