Patent ID: 7796138

Claim:
Method for processing video data to be displayed on a display screen by providing said video data having video levels selected from a predetermined number of video levels; encoding said predetermined number of video levels with a corresponding number of subfield codewords, wherein to each bit of a subfield codeword a subfield is assigned, during which a cell of the display screen can be activated for light generation depending on the state of the corresponding bit of said subfield codeword; comprising the following steps: encoding the video levels of said video data in a central area of the display screen with the corresponding subfield codewords and encoding the video levels of said video data in a predetermined border area surrounding said central area of said display screen by using only those subfield codewords of said number of subfield codewords, which do not have a change of a subfield bit from a binary 0 to a binary 1 in a selectable part of the subfield codewords to prevent in said border area a cell which was not activated for a subfield in said selectable part from being activated for a following subfield in said selectable part, in order to avoid a response fidelity problem in said border area.