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Organic Light-emitting Diode Structure for High Color Gamut in High-resolution Microdisplay: Over 90% Color Gamut based on BT.2020
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- Authors
- Hyunsu Cho, Chul Woong Joo, Sukyung Choi, Chan-mo Kang, Byoung-Hwa Kwon, Jin-Wook Shin, Kukjoo Kim, Dae Hyun Ahn, Nam Sung Cho
- Issue Date
- 2022-02
- Citation
- Organic Electronics, v.101, pp.1-8
- ISSN
- 1566-1199
- Publisher
- Elsevier
- Language
- English
- Type
- Journal Article
- Abstract
- To implement primary colors in high-resolution organic light-emitting diode (OLED) microdisplays, color filters or cavity structures are applied to white OLEDs (WOLEDs). In terms of the high luminance and high color gamut required by microdisplays, two methods were experimentally compared in this study. In addition, a method for applying a color filter to WOLEDs with high-order cavity structures is proposed. The luminance of the proposed structure is lower than that of the cavity-only structure, but is similar to that obtained by applying a color filter to normal WOLEDs. Although previous methods do not satisfy the BT.2020 standard, the proposed structure achieves 90.8% of the BT.2020 standard.
- KSP Keywords
- High-resolution, Organic light-emitting diodes(OLEDS), color filters, color gamut, high order, light-emitting diode(LED), white OLEDs