Electronic circuit, electronic device, electro-optical...

Details Electronic circuit, electronic device, electro-optical... Electronic circuit, electronic device, electro-optical...

2006-12-05

2006-12-05

Tran, Henry N. (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S082000, C345S212000, C315S169100, C315S169300, C341S144000, C341S145000

Reexamination Certificate

active

07145531

ABSTRACT:
The invention provides an electronic circuit, an electronic device, an electro-optical apparatus, and an electronic unit in which characteristic variations of transistors can be suppressed. More particularly, the invention provides an electronic circuit having a digital-to-analog conversion circuit forming a single line driver includes first and second conversion transistors a current transistor first through sixth current-supply transistors first through sixth switching transistors and a reference-current generating transistor. The first conversion transistor and each of the first through sixth current-supply transistors form a current mirror circuit. The reference-current generating transistor, which forms a current mirror circuit with the first conversion transistor is provided. An output terminal of the reference-current generating transistor is connected to an input terminal of the digital-to-analog conversion circuit of the adjacent single line driver.

REFERENCES:
patent: 6954166 (2005-10-01), Kasai
patent: 6961054 (2005-11-01), Matsumoto
patent: 6963336 (2005-11-01), Kimura
patent: 6972526 (2005-12-01), Abe
patent: 6992647 (2006-01-01), Hanada et al.
patent: 7046240 (2006-05-01), Kimura
patent: A-2000-122608 (2000-04-01), None
patent: A-2001-42827 (2001-02-01), None
patent: A 2001-042827 (2001-02-01), None
patent: A-2003-233347 (2003-08-01), None

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