Reflectivity Improvement in Holographic Polymer Dispersed Liquid Crystal (HPDLC) Reflective Display Devices by Controlling Alignment
Summary :
A method to improve the reflection efficiency of holographic polymer dispersed liquid crystal (HPDLC) is proposed and its effectiveness is confirmed. Controlling the alignment of liquid crystal (LC) in tiny droplets of HPDLC can increase the refractive-index difference between the LC droplet layer and the polymer layer, causing the peak reflectance and reflective spectral width to expand. We observed experimentally that 96% of the light components excluding the scattering loss can be diffracted in a transmission HPDLC device by ordering the LC. In a reflection HPDLC, we found that reflection could be improved by ordering through an applied shear force. Our findings should lead to an improvement in the quality of reflective display devices.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E81-C No.11 pp.1685-1690
- Publication Date
- 1998/11/25
- Publicized
- Online ISSN
- DOI
- Type of Manuscript
- Special Section PAPER (Special Issue on Electronic Displays)
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Munekazu DATE, Yoshie TAKEUCHI, Keiji TANAKA, Kinya KATO, "Reflectivity Improvement in Holographic Polymer Dispersed Liquid Crystal (HPDLC) Reflective Display Devices by Controlling Alignment" in IEICE TRANSACTIONS on Electronics,
vol. E81-C, no. 11, pp. 1685-1690, November 1998, doi: .
Abstract: A method to improve the reflection efficiency of holographic polymer dispersed liquid crystal (HPDLC) is proposed and its effectiveness is confirmed. Controlling the alignment of liquid crystal (LC) in tiny droplets of HPDLC can increase the refractive-index difference between the LC droplet layer and the polymer layer, causing the peak reflectance and reflective spectral width to expand. We observed experimentally that 96% of the light components excluding the scattering loss can be diffracted in a transmission HPDLC device by ordering the LC. In a reflection HPDLC, we found that reflection could be improved by ordering through an applied shear force. Our findings should lead to an improvement in the quality of reflective display devices.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/e81-c_11_1685/_p
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@ARTICLE{e81-c_11_1685,
author={Munekazu DATE, Yoshie TAKEUCHI, Keiji TANAKA, Kinya KATO, },
journal={IEICE TRANSACTIONS on Electronics},
title={Reflectivity Improvement in Holographic Polymer Dispersed Liquid Crystal (HPDLC) Reflective Display Devices by Controlling Alignment},
year={1998},
volume={E81-C},
number={11},
pages={1685-1690},
abstract={A method to improve the reflection efficiency of holographic polymer dispersed liquid crystal (HPDLC) is proposed and its effectiveness is confirmed. Controlling the alignment of liquid crystal (LC) in tiny droplets of HPDLC can increase the refractive-index difference between the LC droplet layer and the polymer layer, causing the peak reflectance and reflective spectral width to expand. We observed experimentally that 96% of the light components excluding the scattering loss can be diffracted in a transmission HPDLC device by ordering the LC. In a reflection HPDLC, we found that reflection could be improved by ordering through an applied shear force. Our findings should lead to an improvement in the quality of reflective display devices.},
keywords={},
doi={},
ISSN={},
month={November},}
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TY - JOUR
TI - Reflectivity Improvement in Holographic Polymer Dispersed Liquid Crystal (HPDLC) Reflective Display Devices by Controlling Alignment
T2 - IEICE TRANSACTIONS on Electronics
SP - 1685
EP - 1690
AU - Munekazu DATE
AU - Yoshie TAKEUCHI
AU - Keiji TANAKA
AU - Kinya KATO
PY - 1998
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E81-C
IS - 11
JA - IEICE TRANSACTIONS on Electronics
Y1 - November 1998
AB - A method to improve the reflection efficiency of holographic polymer dispersed liquid crystal (HPDLC) is proposed and its effectiveness is confirmed. Controlling the alignment of liquid crystal (LC) in tiny droplets of HPDLC can increase the refractive-index difference between the LC droplet layer and the polymer layer, causing the peak reflectance and reflective spectral width to expand. We observed experimentally that 96% of the light components excluding the scattering loss can be diffracted in a transmission HPDLC device by ordering the LC. In a reflection HPDLC, we found that reflection could be improved by ordering through an applied shear force. Our findings should lead to an improvement in the quality of reflective display devices.
ER -
English
