RGB-to-RGBW conversion with current limiting for OLED displays

摘要

Organic-light-emitting-diode (OLED) displays employing white-light-emitting OLEDs in combination with RGBW color filters can demand high peak currents to present images with bright, highly saturated colors. Image-processing methods that take advantage of a very highly efficient white subpixel in addition to filtered RGB subpixels to reduce the peak current and power of these displays are described. The image-quality impact of these algorithms are explored to develop a final image-processing algorithm.