Home >

news Help

Publication Information


Title
Japanese: 
English:Push–Pull Biphenyl Liquid Crystals Enabling Low-Voltage-Driven Light-Emitting Devices 
Author
Japanese: 飯田 優斗, 吉田 浩之, 櫻井 庸明, 小西玄一.  
English: Yuto Iida, Hiroyuki Yoshida, Sakurai Tsuneaki, Gen-ichi Konishi.  
Language English 
Journal/Book name
Japanese: 
English:Chemisyry An Asian Journal 
Volume, Number, Page Vol. 21    No. 10    p. e70802
Published date May 23, 2026 
Publisher
Japanese: 
English:Wiley-VCH 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
Official URL https://doi.org/10.1002/asia.70802
 
DOI https://doi.org/10.1002/asia.70802
Abstract Light-emitting liquid-crystal displays (LE-LCDs) are considered energy-efficient display technologies because they eliminate energy losses caused by polarizers and color filters. Although we previously developed an LE-LCD prototype based on π-extended stilbene derivatives, its practical application was hindered by a high driving voltage. In this study, we improved the device performance by employing a newly developed liquid crystal mixture of push–pull biphenyl derivatives (NB-5). NB-5 maintains a nematic phase at room temperature and exhibits intrinsic luminescent properties, enabling the realization of an electro-optical fluorescence switching device operable at 30°C. The resulting device shows a remarkably low threshold voltage and operates at only a few volts. In addition, NB-5 exhibits excellent birefringence and high dichroic ratios. These results demonstrate the effectiveness of push–pull molecular design in improving electro-optical responsiveness and highlight the potential of NB-5 for the practical implementation of low-voltage-driven LE-LCDs.

©2007 Institute of Science Tokyo All rights reserved.