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학술지 Three-wavelength White Organic Light-emitting Diodes on Silicon for High Luminance and Color Gamut Microdisplays
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저자
이성지, 강찬모, 신진욱, 안대현, 주철웅, 조현수, 조남성, 윤혁민, 안영재, 김진선, 이종희, 이현구
발행일
202201
출처
Journal of Industrial and Engineering Chemistry, v.105, pp.132-137
ISSN
1226-086X
출판사
한국공업화학회
DOI
https://dx.doi.org/10.1016/j.jiec.2021.09.014
초록
Organic light-emitting diode (OLED) microdisplays have attracted considerable attention owing to their low power consumption, rapid response, high contrast ratio, and self-luminescence. To expand the use of OLED microdisplays, high luminance and vivid color are required. Herein, we developed a high-luminance, low-voltage, three-wavelength, top-emitting white OLED (WOLED) using a silicon substrate for complementary metal?뱋xide?뱒emiconductor-based, full-color microdisplay applications. Optimal thickness of the emitting layer and thickness and position of the interlayer were determined to improve device performance. The device exhibited luminance of ~4,200 cd/m2 at 3.3 V, and the maximum luminance reached 170,000 cd/m2 at 11.4 V. In addition, red, green, and blue color filters were deposited onto the WOLED after the thin-film encapsulation process to verify feasibility of the device for full-color microdisplay applications. The color gamut of the developed WOLED with color filters was 136% compared to sRGB. The maximum luminance and color gamut of the developed device is among the highest values obtained to date for OLED microdisplays.
키워드
OLED microdisplay, OLEDoS, Organic light-emitting diode, Top-emitting OLED, White OLED
KSP 제안 키워드
3 V, Blue color, Encapsulation process, High contrast ratio, High-luminance, Optimal thickness, Organic light-emitting diodes(OLEDS), Rapid Response, Self-luminescence, Silicon substrate, Thin film encapsulation