Liquid crystal display device and method of driving same

Details Liquid crystal display device and method of driving same Liquid crystal display device and method of driving same

2007-06-07

2010-11-30

Nguyen, Kevin M (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S690000

Reexamination Certificate

active

07843415

ABSTRACT:
A source driver includes a control unit, a data selecting unit, a gamma circuit, a level shifter and a driving buffer unit. The control unit compares a frame count value with a predetermined value N, where N is a natural number larger than two, and outputs a data select signal and a driver control signal based on the comparison. The data selecting unit outputs one of input data and black data in response to the data select signal. The gamma circuit generates a grayscale voltage based on selected data from the data selecting unit and the level shifter generates a driving voltage based on the grayscale voltage. The driving buffer unit provides an output voltage based on the driving voltage to a data line of a display device in response to the driver control signal. Accordingly, the source driver prevents afterimages, improves moving image quality and reduces power consumption

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