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3‐1: Invited Paper : 3 Stack‐3 Color White OLEDs for 4K Premium OLED TV
Author(s) -
Han Chang-Wook,
Han Mi-Young,
Joung Seung-Ryong,
Park Jung-Soo,
Jung Young-Kwan,
Lee Jae-Man,
Choi Hong-Seok,
Cho Gwi-Jeong,
Kim Dong-Hyuk,
Yee Moon-Ky,
Kim Hong-Gyu,
Choi Hyun-Chul,
Oh Chang-Ho,
Kang In-Byeong
Publication year - 2017
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.11555
Subject(s) - oled , brightness , gamut , materials science , optoelectronics , phosphorescence , diode , stack (abstract data type) , layer (electronics) , computer science , physics , optics , fluorescence , nanotechnology , programming language
We report an improved 3‐stacked white organic light emitting diode (WOLED) structure comprised of layers emitting red and yellow‐green phosphorescence in the 2nd stacked device. We focused on developing the WOLED devices to realize 4K premium OLED TV displaying very high brightness and excellent color characteristics, with the optimized color layer. The WOLED has a high current efficiency of 83 cd/A, and cool white color whose color coordinate is (0.297, 0.317). 65‐inch 4K premium OLED TV employing the new WOLED shows 800 nit of peak brightness, and 99 percent color gamut in DCI color space.