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Journal Article
Exploration of OLED structures for high-resolution microdisplays with enhanced efficiency and color gamut
- Authors
- Hyunsu Cho, Chan-mo Kang, Sukyung Choi, Chul Woong Joo, Byoung-Hwa Kwon, Jin-Wook Shin, Kukjoo Kim, Dae Hyun Ahn, Nam Sung Cho
- Issue Date
- 2024-09
- Citation
- Journal of Information Display, v.25, no.3, pp.261-269
- ISSN
- 1598-0316
- Publisher
- Taylor & Francis
- Language
- English
- Type
- Journal Article
- Abstract
- The subpixel size of high-resolution organic light-emitting diode (OLED) microdisplays measures a few micrometers. To achieve a full-color microdisplay, the current preference is to use photolithography technology on a white OLED instead of using a fine metal mask for patterning. The application of photolithography techniques allows for the creation of microcavity structures or color filters (CFs) to enhance color purity in each emitted color. This paper focuses on investigating specialized OLED device structures for high-resolution microdisplays. The characteristics of each structure, including efficiency and color gamut, are thoroughly discussed. The structure, combining microcavity and CF, achieves the widest color gamut, while microcavity structures show higher efficiency compared to CF-only structures. Tandem structures are also considered for improved efficiency and stability.
- KSP Keywords
- Device structure, Enhanced efficiency, Fine metal mask, Full-color, High resolution, Higher efficiency, Tandem structure, color filters, color gamut, color purity, efficiency and stability
This work is distributed under the term of Creative Commons License (CCL)
(CC BY NC)
(CC BY NC)
