Method for Dithering in Display Panel and Associated Apparatus
AssigneeMStar Semiconductor, Inc.
InventorKuo-Hsiang Hung
Life of this patent
Estimating the term…
Abstract
A dithering method and associated apparatus is provided. The method synthesizes a dither pattern including a plurality of elements. At least two of the plurality of elements are of a same value, and at least two of the elements of the same value respectively associate with different driving polarities to prevent flickering. While sub-pixel data of a sub-pixel corresponds between two predetermined color levels of the sub-pixel, a color level displayed by the sub-pixel is determined from the two predetermined color levels according to a sum of the sub-pixel data and the element corresponding to the sub-pixel.
Claims19
A dithering method, applied in a display panel to display image data comprising a plurality of frames each comprising a plurality of sub-pixel data, the display panel comprising a plurality of pixels each comprising a plurality of sub-pixels, each sub-pixel for displaying a plurality of color levels and each sub-pixel corresponding to one of a plurality of driving polarities, the method comprising:
- defining a dither pattern comprising a plurality of elements each associated with a sub-pixel;
- pairing same-valued elements among the elements, and respectively corresponding the paired same-valued elements to two sub-pixels with different polarities in the sub-pixels;
- and
- determining a color level to be displayed by each sub-pixel from two predetermined color levels of the color levels according to the elements in the dither pattern corresponding to the sub-pixels.
A dither control circuit, applied in a display panel to display image data comprising a plurality of frames each comprising a plurality of sub-pixel data, the display panel comprising a plurality of pixels each comprising a plurality of sub-pixels for displaying a plurality of color levels according to a plurality of driving polarities, the apparatus comprising:
- a dot matrix generator, for receiving driving polarity information to generate a dot matrix;
- a block generator, for receiving the driving polarity information to generate a block matrix;
- a dither pattern generator, coupled to the dot matrix generator and the block matrix generator, for synthesizing a dither pattern according to the dot matrix and the block matrix;
- and
- a dithering module, coupled to the dither pattern generator, for dithering the sub-pixel data according to the dither pattern.
Dependencies are inferred from the claim text.