A multiunit compensation for organic light‐emitting diode burn‐in in mobile displays
Jiheon Ok, Yonghoon Yu, Joo‐young An, Sewhan Na, Woohyuk Jang, Hyun‐Wook Lim, Jae-Youl Lee · Journal of the Society for Information Display · 2021
Abstract In this paper, a cost‐effective organic light‐emitting diode (OLED) display burn‐in compensation method on a mobile system is proposed. The subpixel wise compensation map is estimated using the data‐counting approach and is reallocated to multiunit regional map according to amount of burn‐in details. The degraded luminance compensation is applied for the display driver integrated circuit (IC) without the additional external storage. With the optimized multiunit map, perceptual quality can be enhanced after compensation with limited internal memory. Experiment shows that the luminance uniformity of the degraded panel has been improved by 20% after proposed compensation with 1/16 memory space usage.