Abstract:
A data signal processing device includes a load calculator and a compensation processor. The load calculator calculates an on-pixel rate (OPR) based on image data signals and positional weight values. The positional weight values are determined based on locations of pixels in a display panel. The OPR is proportional to a frame luminance load, which corresponds to a sum of driving currents for the pixels to emit light in each of a plurality of frames. The compensation processor compensates distorted luminance caused by the frame luminance load based on the OPR.
Abstract:
A method for driving an electroluminescent display device includes grouping pixels in a display panel into a plurality of pixel groups, each pixel group including a plurality of rows and a plurality of columns. Accumulated block stress values are provided based on input image data. Each accumulated block stress value represents a degree of degeneration of the pixels in each pixel block. Corrected stress values are provided by correcting each accumulated block stress value based on the accumulated block stress values of the adjacent pixel blocks. Input image data is corrected based on the corrected stress values.