Apparatus and method for testing picture quality of liquid...

Details Apparatus and method for testing picture quality of liquid... Apparatus and method for testing picture quality of liquid...

2006-04-27

2010-06-01

Nguyen, Ha Tran T (Department: 2829)

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

Reexamination Certificate

active

07728616

ABSTRACT:
Disclosed is a picture quality testing apparatus and method of a liquid crystal display which can measure at least any one of gray inversion and color shift. An apparatus for testing the picture quality of a liquid crystal display includes a liquid crystal display for displaying a test pattern, an image pickup device for photographing the test pattern of the liquid crystal display, a measurer for measuring the transmittance of the test pattern photographed by the image pickup device, and a rotating means for rotating at least one of the liquid crystal display and the image pickup device while the image pickup device photographs the test pattern.

REFERENCES:
patent: 5499037 (1996-03-01), Nakagawa et al.
patent: 5767935 (1998-06-01), Ueda et al.
patent: 5793221 (1998-08-01), Aoki
patent: 5886760 (1999-03-01), Ueda et al.
patent: 6177955 (2001-01-01), Downen et al.
patent: 6232616 (2001-05-01), Chen et al.
patent: 6606116 (2003-08-01), Poynter
patent: 7079205 (2006-07-01), Kuji
patent: 7110104 (2006-09-01), Choi et al.
patent: 2002/0093583 (2002-07-01), Ito
patent: 2005/0030444 (2005-02-01), Fujiwara et al.
patent: 2004-180142 (2004-06-01), None
patent: 10-2002-0056766 (2004-07-01), None
patent: 10-2002-0030645 (2005-04-01), None

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