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P‐216: High efficiency, transparent overcoat for planarization of display modules
Author(s) -
Reit Radu,
Nagashima Noriyuki,
Imaizumi Masahiro,
Mori Satoshi,
Yang Kejia,
Vega Abraham,
Avendano Adrian,
Arreaga David
Publication year - 2019
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/sdtp.13231
Subject(s) - chemical mechanical planarization , materials science , solvent , thermosetting polymer , composite material , polishing , optoelectronics , chemistry , organic chemistry
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.