Systems and methods for driving a display device

Details Systems and methods for driving a display device Systems and methods for driving a display device

2005-09-06

2005-09-06

Mengistu, Amare (Department: 2673)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C087S026000

Reexamination Certificate

active

06940484

ABSTRACT:
This invention provides a system for driving a display device that uses only a longitudinally elongated region in a display screen as a display region, and limits the power consumption to a lower level. When a pixel belonging to a specific data line in a plurality of data lines is put into a display state, and pixels belonging to other data lines are put into a non-display state, one scanning line in a plurality of scanning lines is selected every one horizontal scanning time period, a selection voltage is applied to the selected scanning line in the second half time period of one of time periods, into which the one horizontal scanning time period is divided, and the polarity of the selection voltage is reversed at least every two or more horizontal scanning time periods on the basis of an intermediate value of a voltage applied to the data lines, while a non-lighting voltage is supplied to data lines other than the specific data line according to the polarity of the selection voltage applied to the selected scanning line, and by reversing the polarity every two or more horizontal scanning time periods corresponding to a polarity reversal period of the selection voltage.

REFERENCES:
patent: 3883778 (1975-05-01), Kaji et al.
patent: 5379050 (1995-01-01), Annis et al.
patent: 6040814 (2000-03-01), Murakami et al.
patent: 6407727 (2002-06-01), Plangger
patent: 6636206 (2003-10-01), Yatabe
patent: WO 98/08133 (1998-02-01), None
patent: WO 01/39165 (2001-05-01), None

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