Display apparatus and portable terminal which uses D/A...

Details Display apparatus and portable terminal which uses D/A... Display apparatus and portable terminal which uses D/A...

2007-04-24

2007-04-24

Hjerpe, Richard (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S098000

Reexamination Certificate

active

10442351

ABSTRACT:
A black-level reference-voltage generation circuit is disposed in a vicinity of an input-and-output pad section, and a power-supply line for the black-level reference-voltage generation circuit is connected to a power-supply line for a reference-voltage generation circuit for the other gradation levels at a position in a vicinity of the input-and-output pad section. With this, the resistance of the wiring resistor of the power-supply line of the black-level reference-voltage generation circuit is made as low as it can be ignored. As a result, a voltage drop caused by the wiring resistor of a black-level reference voltage is eliminated.

REFERENCES:
patent: 5828357 (1998-10-01), Tamai et al.
patent: 6236388 (2001-05-01), Iida et al.
patent: 6373419 (2002-04-01), Nakao
patent: 6459395 (2002-10-01), Kida et al.
patent: 6515676 (2003-02-01), Kasai et al.
patent: 6839043 (2005-01-01), Nakajima
patent: 6879174 (2005-04-01), Uchida
patent: 07-312689 (1995-11-01), None

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