Liquid crystal display and driving method thereof

Details Liquid crystal display and driving method thereof Liquid crystal display and driving method thereof

2002-11-08

2011-10-25

Eisen, Alexander (Department: 2629)

Computer graphics processing and selective visual display system

Display driving control circuitry

Waveform generator coupled to display elements

C345S690000, C345S204000, C345S088000

Reexamination Certificate

active

08044948

ABSTRACT:
An LCD groups pixels in each row into a plurality of blocks, and calculates difference in gray between every two image data applied to a pair of adjacent odd and even pixels in each block including pixels in a row for each of first to third colors. It is determined that a block is first or second dot block depending on a sign of the gray difference when a magnitude of the gray difference between the odd pixel and the even pixel in each pair in the block for at least one color is equal to or larger than a critical value. A current block in a current row and in columns is determined to be a one-dot block when the current block is the first dot block and a previous block in a previous row and in the columns is the second dot block. When the number of the one-dot blocks is a predetermined percentage of the number of the total blocks, it is determined that a one-dot pattern is generated and one-dot inversion of the LCD is changed into another inversion. In this way, a pattern generating flicker is determined and the inversion type is changed for reducing the flicker.

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European Search Report, corresponding to EP 02788925.2-2205 / 1525509 PCT/KR0202076, 24.07.08.

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