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21.2: 55‐inch FHD OLED TV employing New Tandem WOLEDs
Author(s) -
Han ChangWook,
Kim KyungMan,
Bae SungJoon,
Choi HongSeok,
Lee JaeMan,
Kim TaeShick,
Tak Yoon Heung,
Cha SooYoule,
Ahn ByungChul
Publication year - 2012
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/j.2168-0159.2012.tb05768.x
Subject(s) - oled , tandem , stack (abstract data type) , gamut , materials science , optoelectronics , layer (electronics) , optics , computer science , physics , nanotechnology , composite material , programming language
We report a 55‐inch OLED TV employing white organic light emitting device (WOLED) and oxide TFT. We fabricated the hybrid tandem structure comprising a phosphorescent R/G stack and a fluorescent blue stack to achieve high current efficiency of 90cd/A at 1,000 nit and white color (0.327, 0.344). 55‐inch OLED TV was adjusted to cool white color of (0.285, 0.294). We applied a color layer for large color gamut (118% ATSC ratio) and deep blue expression (0.142, 0.054). We also improved 3 kinds of color shift over viewing angle, aging and gray level.