A luminance resolution enhancement circuit receives an (mn) -bit image signal having an m-bit displayable component and an n-bit non-displayable component. An address generating element generates relative spatial and temporal coordinates of the pixel values in the image signal. For each pixel value,...http://www.google.de/patents/US6476824?utm_source=gb-gplus-sharePatent US6476824 - Luminance resolution enhancement circuit and display apparatus using same