Design strategy of OLED microdisplay for high luminance and wide color gamut

Hyunsu Cho; Chan-mo Kang; Chul Woong Joo; Dae Hyun Ahn; Jin-Wook Shin; Sukyung Choi; Kukjoo Kim; Byoung-Hwa Kwon; Gi Heon Kim; Nam Sung Cho; Chunwon Byun; Hyoc Min Youn; Young Jae An; Jin Sun Kim

doi:10.1117/12.3027249

30 September 2024 Design strategy of OLED microdisplay for high luminance and wide color gamut

Hyunsu Cho, Chan-mo Kang, Chul Woong Joo, Dae Hyun Ahn, Jin-Wook Shin, Sukyung Choi, Kukjoo Kim, Byoung-Hwa Kwon, Gi Heon Kim, Nam Sung Cho, Chunwon Byun, Hyoc Min Youn, Young Jae An, Jin Sun Kim

Author Affiliations +

Proceedings Volume 13122, Organic and Hybrid Light Emitting Materials and Devices XXVIII; 1312210 (2024) https://doi.org/10.1117/12.3027249
Event: Organic Photonics + Electronics, 2024, San Diego, California, United States

Abstract

In contrast to traditional OLED displays found in mobile phones and TVs, OLED microdisplays present distinct challenges. Despite their reduced panel size, achieving high resolution is crucial, resulting in pixel sizes of only a few micrometers and gaps between pixels less than 1 micrometer. In this presentation, we will delve into OLED device technology, focusing on achieving high luminance and a wide color gamut, while considering the unique characteristics of microdisplays. A noteworthy demonstration involved a 3000 pixels-per-inch (ppi) OLED microdisplay with a color gamut of 130.2% based on the sRGB standard. This achievement is attributed to a thoughtful combination of light-emitting materials, OLED device structure, and subpixel arrangement. This work was supported by Institute of Information & communications Technology Planning & Evaluation (IITP) grant funded by the Korea government(MSIT) (No.2022-0-00026, Near-eye light field device technology development for hyper-realistic metaverse service)

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Hyunsu Cho, Chan-mo Kang, Chul Woong Joo, Dae Hyun Ahn, Jin-Wook Shin, Sukyung Choi, Kukjoo Kim, Byoung-Hwa Kwon, Gi Heon Kim, Nam Sung Cho, Chunwon Byun, Hyoc Min Youn, Young Jae An, and Jin Sun Kim "Design strategy of OLED microdisplay for high luminance and wide color gamut", Proc. SPIE 13122, Organic and Hybrid Light Emitting Materials and Devices XXVIII, 1312210 (30 September 2024); https://doi.org/10.1117/12.3027249

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KEYWORDS

Organic light emitting diodes

Design

Cell phones

Televisions

Metals

Optical filters

Optical lithography

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