76‐1: Invited Paper: FMM Material and Manufacturing Process for UHD Resolution AMOLED Displays

Manufacturing fine metal mask (FMM) is one of the biggest hurdles to realize UHD grade AMOLED displays for smartphone and virtual reality (VR). We have developed the state‐of‐the‐art material and processing technology to achieve 800ppi or higher resolution FMMs. The Invar thinning and the thermal da...

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Bibliographic Details
Published in:SID International Symposium Digest of technical papers 2019-06, Vol.50 (1), p.1079-1082
Main Authors: Kim, Chiwoo, Kim, Kisoo, Park, Jong Kab, Kim, Doh Hoon, Jung, Kiro
Format: Article
Language:English
Subjects:
Active matrix displays
Chemical Etching
Displays
Electro-forming
Ferrous alloys
FMM (Fine Metal Mask)
INVAR
Laser ablation
Laser damage
Laser patterning
Low expansion alloys
Smartphones
UHD (Ultra High Definition)
Virtual reality
VR (Virtual Reality)
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Summary:Manufacturing fine metal mask (FMM) is one of the biggest hurdles to realize UHD grade AMOLED displays for smartphone and virtual reality (VR). We have developed the state‐of‐the‐art material and processing technology to achieve 800ppi or higher resolution FMMs. The Invar thinning and the thermal damage‐free laser ablation process realized us achieving the FMM for UHD displays.
ISSN:0097-966X
2168-0159
DOI:10.1002/sdtp.13115