LOCAL TEMPERATURE ADAPTIVE DISPLAY APPARATUS AND METHOD

摘要

The gain of a driving signal for a display screen such as an OLED display is selected as a function of image position dependent on a position dependent estimate of a temperature of the display screen. The position dependent temperature may result from the intensity variation in previously displayed images. The desired gain is initially reduced at positions with relatively higher temperature compared to positions with relatively lower temperature. An indication of the desired gain is low pass filtered with a spatial low pass filter. The spatial low pass filter response function of the low pass filter is controlled dependent on a content of a current image, to limit blurring by the filter response at positions of edges in the current image. The current image is subjected to the modified indication of the gain.