95‐3: Fabrication of Sub‐Micron Organic/Inorganic Hybrid Thin‐Film Encapsulation on Ultra‐High‐Resolution Microdisplays Using Inkjet Printing Process

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 optimi...

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Bibliographic Details
Published in:SID International Symposium Digest of technical papers 2024-06, Vol.55 (1), p.1348-1351
Main Authors: Kim, Dasol, Joo, Chul Woong, Shin, Jin-Wook, Cho, Hyunsu, Kang, Chan-mo, Choi, Sukyung, Ahn, Dae Hyun, Byun, Chun won, Cho, Nam Sung, Kim, Kukjoo, Baek, In-Bok, Suh, Hyungwoo, Woo, Seung Wan, Lee, Jonghee, Kwon, Byoung-Hwa
Format: Article
Language:English
Subjects:
Encapsulation
Industrial printhead
Inkjet printing
OLED microdisplays
Optical crosstalk
Optical properties
Organic light emitting diodes
Photodegradation
Printers (data processing)
Relative humidity
Sub-micron organic/inorganic hybrid Thin Film Encapsulation
Substrates
Surface treatment
Thickness
Thin films
Ultra-high-resolution
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Summary: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.
ISSN:0097-966X
2168-0159
DOI:10.1002/sdtp.17796