ORGANIC LIGHT EMITTING DISPLAY AND DEGRADATION COMPENSATION METHOD THREOF

摘要

An organic light emitting display includes a display panel including a plurality of pixels, a compensation area setting unit for selecting an additional compensation requirement area, that is more excessively degraded than an average degradation, based on degradation detection data indicating a degradation degree of organic light emitting diodes formed in the pixels, an edge information extraction unit that analyzes input image data corresponding to the additional compensation requirement area and obtains edge information of an input image, a compensation gain calculation unit for differentially calculating a compensation gain to be applied to compensation data in each of the compensation blocks belonging to the additional compensation requirement area based upon an amount of edge information; and a data modulation unit producing modulation image data to be displayed on the display panel.

主权项

1. An organic light emitting display comprising:
a display panel including a plurality of pixels each having an organic light emitting diode, the display panel displaying an image; a compensation area setting unit configured to select an additional compensation requirement area, which is more excessively degraded than an averagely degraded area, based on degradation detection data indicating a degradation degree of the organic light emitting diode; an edge information extraction unit configured to analyze input image data corresponding to the additional compensation requirement area and obtain edge information of an input image; a compensation gain calculation unit configured to differentially calculate a compensation gain to be applied to compensation data in each of compensation blocks belonging to the additional compensation requirement area depending on an amount of edge information; and a data modulation unit configured to multiply the compensation data of each pixel, to which the compensation gain is applied, by the input image data and produce modulation image data to be displayed on the display panel.