METHOD AND APPARATUS FOR LUMINANCE NON-HOMOGENEITY COMPENSATION IN AN AM-OLED

摘要

The present invention relates to a method and an apparatus for compensating the luminance rendering difference between luminous elements of a display device such as an active matrix OLED (Organic Light Emitting Display). The luminance generated by each of the luminous elements is based on the intensity of a signal supplied to the luminous element for displaying the corresponding pixel of the picture and the intensity of the signal to be supplied to each luminous element is based on a set of reference signals. According to the invention, the intensity of the signal of the luminous elements of a second line is adjusted for compensating at least a part of luminance rendering difference with the luminous elements of a first line of the display device, said adjustment being made by adjusting the level of the set of the reference signals used by the luminous elements of the second line.