High aspect ratio microdisplay and thin optical component for glass-like AR devices

Journal of Information Display

Seung No Lee¹  Yu Bin Im¹  Sang Tae Kim¹  Jong Soo Lee¹  Hyunkoo Lee²  Youngjoon Kim³  Jaehyeok Kim³  Jeonghun Ha³  Soon-gi Park³  Hokwon Kim⁴  Sang Hyun Park⁴  Jeong Hwan Lee⁴  Ara Cho⁴  Minseok Kim⁴  Hyunsu Cho⁵  Sukyung Choi⁵  Nam Sung Cho⁵  Jin-Wook Shin⁵  Byoung-Hwa Kwon⁵  Chan-mo Kang⁵  Jeong-Ik Lee⁵  Chun-Won Byun⁵ 

[1] Color R&D Center, Dongwoo Fine-Chem Co., Ltd., Iksan, Republic of Kore;Department of Electronics Engineering, Sookmyung Women’s University, Seoul, Republic of Kore;LetinAR, Seoul, Republic of Kore;RAONTECH, Seongnam-si, Republic of Kore;Reality Display Research Section, Electronics and Telecommunications Research Institute (ETRI), Daejeon, Republic of Kore;

关键词: AR/VR;    AR device;    OLED;    OLED microdisplay;   

DOI  :  10.1080/15980316.2021.1902405

来源: Taylor & Francis

【 摘 要 】

light-emitting diode (OLED) microdisplays have attracted much attention as displays for small form factor augmented reality (AR) devices. To realize glass-like thin and wide field of view (FoV) AR devices, we designed a display module with a high aspect ratio microdisplay and a thin optical component. For the high aspect ratio microdisplay, we developed the color OLED microdisplay with a 32:9 aspect ratio and a 0.8-inch diagonal ∼2,490-ppi CMOS backplane. To express color and reduce optical crosstalk, we fabricated the color filter (C/F) patterning directly on the white OLED. We also developed a pin mirror lens with 11 pin mirrors to improve the optical efficiency and quality with a thin lens. By combining the microdisplay with LetinAR’s pin mirror lens, we successfully demonstrated an AR device with a wide horizontal FoV of 46° but with a small form factor 4 mm lens.

【 授权许可】

CC BY