52.4: Proposal of zero-birefringence pressure sensitive adhesives for preventing the light leakage of LCDs

Hiroto Ito, Satoshi Yanai, Akihiro Tagaya, Yasuhiro Koike, Sumihisa Oda

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1 Citation (Scopus)


To reduce the light leakage of LCDs, the birefringence of pressure sensitive adhesives (PSAs) was investigated. We proposed a novel birefringence measurement method for measuring the birefringence of PSAs. By this method, the birefringence was evaluated quantitatively. Consequently, we designed a zerobirefringence PSA which does not exhibit birefringence at any orientation. This zero-birefringence PSA successfully reduced the light leakage after the accelerated aging test. We clarified the correlation between the birefringence of PSAs and the light leakage.

Original languageEnglish
Pages (from-to)766-769
Number of pages4
JournalDigest of Technical Papers - SID International Symposium
Volume42 1
Publication statusPublished - 2011 Jun


ASJC Scopus subject areas

  • Engineering(all)

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