Patent ID: 6043801
Filing Date: 2000-03-28
Classification: G09G

Abstract:
In an improved method for generating gray scale levels for pixels in a display, said method including the step of defining a first matrix of adjacent pixels in rows and columns in said display and associating a phase value with each of said pixels for a selected gray scale level for said pixels, said phase values timing ON/OFF signals at said pixel in a frame time period for said display, the improvement comprisinggenerating said first matrix from a second pixel matrix, said second matrix having dimensions smaller than said first matrix;associating the phase values with pixels in said second matrix such that a minimal number of ordered phase values is associated with pixels in all rows and columns of said second matrix, andmultiplying said phase values of said first matrix by a predetermined amount for reordering said phase values with said pixels in said matrix, said predetermined amount selected in response to said selected gray scale for said pixels;whereby flicker is substantially reduced and gray scale levels are substantially linearized for said display.