Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2006-05-16
2006-05-16
Mengistu, Amare (Department: 2673)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S211000
Reexamination Certificate
active
07046223
ABSTRACT:
A method for driving a liquid crystal display capable of reducing power consumption, decreasing a packaging area or a number of packaged parts, and providing an image of high quality when the liquid crystal display having a comparatively small display screen is driven by a line inverting driving method or by a frame inverting driving method.Digital video data is output, with or without data being inverted, based on a polarity signal being inverted in every one horizontal sync period or in every one vertical sync period. A plurality of gray scale voltages is selected, being provided so as to have either of a voltage of positive or negative to match an applied voltage of positive polarity or negative polarity transmittance characteristic. Any one of the gray scale voltage out of the plurality of gray scale voltages having a selected polarity is selected based on digital video data, with or without inversion of a polarity of gray scale voltages. The selected one gray scale voltage is applied as a data signal to a corresponding data electrode.
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Mengistu Amare
NEC Electronics Corporation
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