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38.2: A methodology of white color correction for RGBW configuration of AMOLED display
Author(s) -
Yang Hsueh-Yen,
Cheng Ching-Pei,
Li Xin-Hui,
Feng Ji-Xiong
Publication year - 2019
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.13515
Subject(s) - amoled , brightness , oled , pixel , rgb color model , computer science , materials science , luminance , artificial intelligence , optics , physics , thin film transistor , layer (electronics) , active matrix , composite material
Current Large‐sized or ultra‐high PPI AMOLED panel is evaporated with common mask and use white OLED (WOLED) device to achieve light emitting. The tandem OLED device is its lighting source so that its various luminous efficiency cause CIE‐xy deviation with various driving voltage. The white mixing ratio (WMR) is utilized to adjust power saving and tune vivid color perception for the RGBW display. A white tuning algorithm is required to improve white accuracy and consider adjustable WMR parameter to achieve consistent brightness. The paper proposes an iterative method to achieve a similar white color temperature. Separated mixing ratio of RGB sub‐pixels is used to control the minus amount of primary colors in the RGBW conversion. In our experiment, proposed method efficiently is implemented to perform a target white with multiple WMR selections.