Evaluation of phase retardation of curved thin polycarbonate substrates for wide-viewing angle flexible liquid crystal displays

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

We investigated the effects of a bending stress on the change in phase retardation of curved polycarbonate substrates and optical characteristics of flexible liquid crystal displays (LCDs). We clarified that the change in phase retardation was extremely small even for the substrates with a small radius of curvature, because bending stresses occurred in the inner and upper surfaces are canceled each other out. We compensated for the phase retardation of polycarbonate substrates by a positive C-plate and successfully suppressed light leakage in both non-curved and curved states. These results indicate the feasibility of high-quality flexible LCDs using polycarbonate substrates even in curved states.

Original languageEnglish
Pages (from-to)992-997
Number of pages6
JournalIEICE Transactions on Electronics
VolumeE100C
Issue number11
DOIs
Publication statusPublished - 2017 Nov

Keywords

  • Bending stress
  • Flexible display
  • Liquid crystal display
  • Optical compensation
  • Polycarbonate substrate

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Evaluation of phase retardation of curved thin polycarbonate substrates for wide-viewing angle flexible liquid crystal displays'. Together they form a unique fingerprint.

Cite this