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Evaluation of Phase Retardation of Curved Thin Polycarbonate Substrates for Wide-viewing Angle Flexible Liquid Crystal Displays
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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.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E100-C No.11 pp.992-997
- Publication Date
- 2017/11/01
- Publicized
- Online ISSN
- 1745-1353
- DOI
- 10.1587/transele.E100.C.992
- Type of Manuscript
- Special Section INVITED PAPER (Special Section on Electronic Displays)
- Category
Authors
Shuichi HONDA
Tohoku University
Takahiro ISHINABE
Tohoku University
Yosei SHIBATA
Tohoku University
Hideo FUJIKAKE
Tohoku University
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Shuichi HONDA, Takahiro ISHINABE, Yosei SHIBATA, Hideo FUJIKAKE, "Evaluation of Phase Retardation of Curved Thin Polycarbonate Substrates for Wide-viewing Angle Flexible Liquid Crystal Displays" in IEICE TRANSACTIONS on Electronics,
vol. E100-C, no. 11, pp. 992-997, November 2017, doi: 10.1587/transele.E100.C.992.
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.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.E100.C.992/_p
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@ARTICLE{e100-c_11_992,
author={Shuichi HONDA, Takahiro ISHINABE, Yosei SHIBATA, Hideo FUJIKAKE, },
journal={IEICE TRANSACTIONS on Electronics},
title={Evaluation of Phase Retardation of Curved Thin Polycarbonate Substrates for Wide-viewing Angle Flexible Liquid Crystal Displays},
year={2017},
volume={E100-C},
number={11},
pages={992-997},
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.},
keywords={},
doi={10.1587/transele.E100.C.992},
ISSN={1745-1353},
month={November},}
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TY - JOUR
TI - Evaluation of Phase Retardation of Curved Thin Polycarbonate Substrates for Wide-viewing Angle Flexible Liquid Crystal Displays
T2 - IEICE TRANSACTIONS on Electronics
SP - 992
EP - 997
AU - Shuichi HONDA
AU - Takahiro ISHINABE
AU - Yosei SHIBATA
AU - Hideo FUJIKAKE
PY - 2017
DO - 10.1587/transele.E100.C.992
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E100-C
IS - 11
JA - IEICE TRANSACTIONS on Electronics
Y1 - November 2017
AB - 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.
ER -
English
