Method of testing driving circuit and driving circuit for...

Details Method of testing driving circuit and driving circuit for... Method of testing driving circuit and driving circuit for...

2006-08-30

2010-12-28

Dole, Timothy J (Department: 2831)

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

For fault location

C324S701000, C345S204000, C345S904000

Reexamination Certificate

active

07859268

ABSTRACT:
A test signal is supplied to a test switch provided between a D/A converter for selecting and outputting a gray scale voltage of the driving circuit and an amplifier for amplifying and supplying an output voltage at the D/A converter to set a test mode, and an output voltage of the D/A converter is directly measured by a measuring device through the test switch to measure an ON resistance of a gray scale voltage selection circuit of the D/A converter.

REFERENCES:
patent: 6972755 (2005-12-01), Plangger
patent: 7268763 (2007-09-01), Fukuda et al.
patent: 7436381 (2008-10-01), Kim et al.
patent: 2003/0132906 (2003-07-01), Tanaka et al.
patent: 2002-304164 (2002-10-01), None

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