Method for driving display and drive circuit for display

Details Method for driving display and drive circuit for display Method for driving display and drive circuit for display

2007-09-11

2007-09-11

Hjerpe, Richard (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S089000, C345S094000

Reexamination Certificate

active

10701856

ABSTRACT:
A drive circuit of a display that decreases the number of gates in a selection circuit to reduce chip area. The drive circuit includes a first voltage dividing circuit for generating a plurality of divisional voltages by dividing a predetermined reference voltage. A selection circuit receives a selection signal and selects one of the divisional voltages. The selection circuit includes a plurality of first switch circuits selectively activated in response to the selection signal to select one of the divisional voltages. Each of the first switch circuits is provided with a logic switch function and has an ON resistance when activated. An activated one of the first switch circuits generates the pixel voltage by further dividing the selected one of the divisional voltages.

REFERENCES:
patent: 2002/0008686 (2002-01-01), Kumada et al.
patent: 2003/0034947 (2003-02-01), Tanaka et al.
patent: 2005/0225573 (2005-10-01), Kudo et al.
patent: 9-138670 (1997-05-01), None
patent: 9-258695 (1997-10-01), None

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