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Patent Searching and Data


Title:
LIQUID CRYSTAL PROJECTOR
Document Type and Number:
Japanese Patent JPH03196790
Kind Code:
A
Abstract:

PURPOSE: To adjust the difference of the γ property between plural liquid crystal panels well and to improve the reproduction picture quality by providing respective γ compensation circuits corresponding to the plural liquid crystal panels.

CONSTITUTION: γ compensation circuits 56, 58, 60 set with independent compensation properties are respectively connected to the picture signal input side of the respective liquid crystal panels 50, 52, 54 of R, G and B, and the respective picture signals of the R, G and B are inputted to these. By the compensation by these γ compensation circuits 56, 58, 60, the γ properties of all R, G and B of the picture reception side with the liquid crystal panels 50, 52, 54 at its center is made to become the same as a cathode ray tube (γ=2.2). Thus, the difference of the γ properties between the liquid crystal panels 50, 52, 54 is well adjusted, and the reproduction picture quality can be improved.


Inventors:
ISOBE YUTAKA
SHIBAYAMA TAKECHIKA
Application Number:
JP31133089A
Publication Date:
August 28, 1991
Filing Date:
November 29, 1989
Export Citation:
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Assignee:
VICTOR COMPANY OF JAPAN
International Classes:
H04N9/31; (IPC1-7): H04N9/31
Attorney, Agent or Firm:
Kajiwara Yasunori