Patent ID: 7564432

Claim:
A method of reducing luminance decay of emissive elements in a matrix addressed emissive display device, the method comprising: generating in a graphics engine control data corresponding to a static image to be displayed and generating drive signals as a function of the control data in a drive circuit, wherein the control data defines an image origin of the static image with respect to a display origin; providing the drive signals to the matrix to thereby energize the corresponding emissive display elements of the matrix in order to display the static image on the matrix; and altering in the graphics engine the control data, substantially continuously, such that the drive signals are substantially continuously altered to thereby substantially continuously move the static image on the matrix in a manner which is substantially undetectable to viewers of the display device, wherein the control data is altered by redefining the image origin of the static image with respect to the display origin, wherein providing the drive signals to the matrix further comprises providing the drive signals to a field effect display matrix in order to display the static image on the matrix.