Patent ID: 6388647
Filing Date: 2002-05-14
Classification: G09G

Abstract:
A method for increasing the number of colors outputted by an LCD display, the method comprising the steps of:providing a plurality of groups of pixel matrix patterns, each group of pixel matrix patterns being associated with a corresponding grey level of a plurality of grey levels, each pixel matrix pattern including a respective number of row and a respective number of columns, at least one of the respective number of rows and the respective number of columns being identical for each pixel matrix pattern within a particular group of pixel matrix patterns, but being different between groups of pixel matrix patterns that are associated with consecutive grey levels of the plurality of grey levels; selecting one group of the plurality of groups of pixel matrix patterns to be displayed in at least a portion of the display based on a desired grey level of the plurality of grey levels to produce a selected group of pixel matrix patterns; and for each frame of a group of frames to be displayed on the LCD display, generating signals to produce a corresponding one of the pixel matrix patterns in the selected group of pixel matrix patterns, wherein each column and each row of the corresponding one of the pixel matrix patterns in the selected group of pixel matrix patterns includes an equal number of pixels that have at least one color component turned ON to achieve a particular output color over the frame.