Dithering system

A method for randomly and dynamically generating a pattern index incorporated in a dynamic index system receives video data and processes each sub-pixel datum of the video data by a pseudo-random generating unit of the dynamic index system to alternately form dithering data of three dimensions of pixel, line, and frame, the method comprising:

• providing the video data of substantially non-zero to the dynamic index system;
• receiving the video data and dynamically to generate a substantially random number by the pseudo-random generating unit;
• selecting the m bits of the substantially random number as at least one target adapted to as a vector position code of a dynamic pattern index matrix;
• repeating the step of selecting the m bits of the substantially random number as at least one target adapted to be as a vector position code of a dynamic pattern index matrix for M times so as to guide the acquired M sets of m bits as a column vector position code (M×1) of the dynamic pattern index matrix;
• and
• acquiring a two-dimensional dynamic pattern index matrix (M×N) according to the column vector position code (M×1) by operating of the pseudo-random generating unit.

A dithering system incorporating to a multimedia player to produce a dithering data to a display device via the way of random dynamics, comprising:

• a pattern generator to produce a video data;
• a processing unit, electrically connected to the pattern generator, and to receive the video data via pre-processed by way of fixed-pattern and output;
• a timing controller electrically connected to the processing unit and to receive the output video data;
• and
• a dynamic index system, electrically connected to the timing controller, having a pseudo-random generating unit and a dynamic pattern index generating unit, so as to receive the video data from the timing controller, so that to generate a substantially random number via the operation of the pseudo-random generating unit and a dynamic pattern index via the operation of the dynamic pattern index generating unit, and so as to allow the dynamic pattern index as the index of the dithering data.