P‐216: High efficiency, transparent overcoat for planarization of display modules

Overcoating materials for the planarization of display module subassemblies such as the thin‐film transistor (TFT) array or the color filter (CF) sub‐pixels have seen little innovation in the previous decade. However challenges with existing overcoat materials still exist, principally in the form of...

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Bibliographic Details
Published in:SID International Symposium Digest of technical papers 2019-06, Vol.50 (1), p.1518-1521
Main Authors: Reit, Radu, Nagashima, Noriyuki, Imaizumi, Masahiro, Mori, Satoshi, Yang, Kejia, Vega, Abraham, Avendano, Adrian, Arreaga, David
Format: Article
Language:English
Subjects:
Chemical-mechanical polishing
color filter
low solvent content
Modules
overcoat
Polymers
Pylux
Solvents
Subassemblies
Thermosetting resins
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Summary:Overcoating materials for the planarization of display module subassemblies such as the thin‐film transistor (TFT) array or the color filter (CF) sub‐pixels have seen little innovation in the previous decade. However challenges with existing overcoat materials still exist, principally in the form of high solvent contents, difficult to remove or toxic solvents and inadequate planarization performance. In response, Ares Materials has employed its Pylux™‐brand polysulfide thermoset (PST) resins as effective overcoat materials which solve the previously described commercial overcoat material issues. In this paper we describe the use of Pylux PST overcoating resins and their corresponding planarization performance over a commercial CF, showing equivalent or improved planarization performance of < 0.2 µm while using > 2X less solvent.
ISSN:0097-966X
2168-0159
DOI:10.1002/sdtp.13231