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14‐1: Distinguished Paper: A Multi‐Unit Compensation for OLED Burn‐In in Mobile Displays
Author(s) -
Ok Jiheon,
Yu Yonghoon,
An Joo-young,
Na Sewhan,
Jang Woohyuk,
Lim Hyun-Wook,
Lee Jae-Youl
Publication year - 2021
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/sdtp.14637
Subject(s) - oled , compensation (psychology) , unit (ring theory) , burn in , computer science , computer graphics (images) , materials science , psychology , engineering , electrical engineering , social psychology , nanotechnology , mathematics education , layer (electronics)
In this paper, a cost‐effective OLED display burn‐in compensation method on a mobile system is proposed. The sub‐pixel wise compensation map is estimated using the data‐counting approach and is reallocated to multi‐unit regional map according to amount of burn‐in details. The degraded luminance compensation is applied for the display driver IC without the additional external storage. With the optimized multi‐unit 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.