Liquid crystal display device and driving method thereof
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United States of America Patent
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Issued Date -
Dec 1, 2005
app pub date -
Jun 1, 2005
filing date -
Jun 1, 2004
priority date (Note) -
Abandoned
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Abstract
A liquid crystal display device can have enhanced display quality of a display screen by preventing the generation of lateral stripes on the display screen when the polarity of a gray scale voltage is inverted for every N (N.gtoreq.2) lines without providing a new display control signal. In the liquid crystal display device, a gray scale voltage is applied to a plurality of pixels, and the polarity of the gray scale voltage is inverted for every N (N.gtoreq.2) video lines. The polarity inversion line position at which the polarity of the gray scale voltage is changed from the positive polarity to the negative polarity or vice versa different among respective frames. Thus, the polarity inversion line position is discontinuous among continuous frames. Further, the positive polarity gray scale voltage and the negative polarity gray scale voltage are supplied to the respective pixels every N/2 times.
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