Patent ID: 8937632
Filing Date: 2015-01-20
Classification: G09G

Abstract:
1. A method of using raw grayscale image data, representing images to be displayed in successive frames, to drive a display having pixels that include a drive transistor and an organic light emitting device, said method comprising: dividing each frame into at least first sub-frames and second sub-frames; converting the raw grayscale values for each frame to first sub-frame grayscale values and second sub-frame grayscale values for the first sub-frames and second sub-frames, respectively; and supplying each pixel with a drive current during said first sub-frames and said second sub-frames, said drive current being based on said first sub-frame grayscale values and said second sub-frame grayscale values, respectively, wherein wherein when the raw grayscale value increases to a value that causes the second sub-frame grayscale value to increase above said second threshold value, the second sub-frame grayscale value continues to increase while the first sub-frame grayscale value is decreased by the same amount.