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Conference Paper
Fabrication of Sub-Micron Organic/Inorganic Hybrid Thin-Film Encapsulation on Ultra-High-Resolution Microdisplays Using Inkjet Printing Process
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- Authors
- Dasol Kim, Chul Woong Joo, Jin-Wook Shin, Hyunsu Cho, Chan-mo Kang, Sukyung Choi, Dae Hyun Ahn, Chun won Byun, Nam Sung Cho, Kukjoo Kim, In-Bok Baek, Hyungwoo Suh, Seung Wan Woo, Jonghee Lee, Byoung-Hwa Kwon
- Issue Date
- 2024-05
- Citation
- Society for Information Display (SID) International Symposium 2024, pp.1348-1351
- Language
- English
- Type
- Conference Paper
- Abstract
- In this study, we fabricated sub-micron organic/inorganic hybrid TFE (Thin Film Encapsulation). We utilize an inkjet printing process to fabricate organic layer. It has excellent industrial applicability by using an industrial printhead with 1024 nozzles. The thickness of the organic layer is optimized through the DPI (Drops Per Inch) of inkjet printing and surface treatment of substrate. The sub-micron organic/inorganic hybrid TFE was fabricated on a TEOLED (Top Emission Organic Light Emitting Diode), and the OLED (Organic Light Emitting Diode) with the fabricated TFE did not show degradation. Under constant temperature and humidity conditions 30°C, 90 % R.H. (Relative Humidity), the luminance of the OLED remained the same without any defects. The fabricated TFE for the production of OLEDoS has excellent encapsulation properties even at a thin thickness. Finally, we are investigating the optical properties of the ultra-high-resolution microdisplay panel applied with the sub-micron organic/inorganic hybrid TFE.
- KSP Keywords
- Constant temperature and humidity, High resolution, Hybrid thin film, Inkjet printing, Organic layer, Printing process, Relative Humidity(RH), Surface treatments, Thin film encapsulation, Top emission, light emitting diodes(LED)