Simultaneous phase retardation and optic axis measurements of A- and C-plates

Yung Hsun Wu*, Yi-Hsin Lin, Hongwen Ren, Shin Tson Wu

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review


We demonstrate a new method for simultaneously measuring the phase retardation and optic axis of a compensation film by using an axially-symmetric sheared polymer network liquid crystal (AS-SPNLC). With overlaying a tested compensation film with a calibrated AS-SPNLC cell between crossed polarizers, the optic axis and phase retardation value of the compensation film can be determined. This method is applicable to both A- and C-plate phase compensation films.

Original languageEnglish
Pages (from-to)732-735
Number of pages4
JournalDigest of Technical Papers - SID International Symposium
Issue number1
StatePublished - 1 Dec 2006
Event44th International Symposium, Seminar, and Exhibition, SID 2006 - San Francisco, CA, United States
Duration: 4 Jun 20069 Jun 2006


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