Method and apparatus for driving liquid crystal display

Details Method and apparatus for driving liquid crystal display Method and apparatus for driving liquid crystal display

2011-01-25

2011-01-25

Osorio, Ricardo L (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

07876300

ABSTRACT:
A driving method and apparatus for a liquid crystal display uses a comparison between the previous frame and the current frame to expand the contrast ratio and reduce the manufacturing cost. A limited amount of data from the current image may be used: either using a limited area of the image or merely the amount of green in the overall image or the limited area. In the apparatus, an image signal modulator expands the contrast of the input data when the previous image is analogous to the current image to thereby generate output data. A timing controller re-arranges the output data to apply the output data to a data driver.

REFERENCES:
patent: 7339565 (2008-03-01), Kim
patent: 7522135 (2009-04-01), Baik
patent: 7705814 (2010-04-01), Baik et al.
patent: 2005/0001801 (2005-01-01), Kim
patent: 2005/0140640 (2005-06-01), Oh et al.

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