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P‐178: White OLED Panel with RGBW Color Filters Based on Dual‐Plate OLED Display (DOD) Structure
Author(s) -
Choi HongSeok,
Kim Hwa Kyung,
Pang Hee Suk,
Pieh Sung Hoon,
Sung Chang Je,
Kim MyungSeop,
Han ChangWook,
Tak Yoon Heung
Publication year - 2009
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 - 10.1889/1.3256675
Subject(s) - oled , backplane , gamut , materials science , optoelectronics , layer (electronics) , color filter array , ntsc , pixel , rgb color model , computer science , computer graphics (images) , optics , artificial intelligence , thin film transistor , color gel , computer hardware , physics , telecommunications , transmission (telecommunications) , nanotechnology
We report new DOD structure employing WOLED with color filters patterning RGBW sub‐pixels. The DOD structure consists of the top plate on which organic layer was evaporated and the bottom plate involving TFT arrays. for white OLED, the top plate contains reformulated RGBW color filters and an overcoat layer. The EL efficiency of one‐stacked WOLED is 18.7 cd/A with CIE x, y coordinates of (0.31, 0.35) at 4.3 mA/cm2. By combining WOLED and the DOD structure using a‐Si backplane, we obtained the high aperture ratio up to 67% in the panel having the same pixel size for 32 ″ Full HD, and use of color filters developed for our WOLED enables color gamut to become wider than the 100% NTSC in uniform color space (u',v').