Responsive soft materials that can change their reflection colors with electrical stimuli

2017 Fiscal Year Final Research Report

• Project/Area Number: 16K14062
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Organic and hybrid materials
• Research Institution: The University of Tokyo
• Principal Investigator: ITOH Yoshimitsu 東京大学, 大学院工学系研究科(工学部), 講師 (00531071)
• Project Period (FY): 2016-04-01 – 2018-03-31
• Keywords: コレステリック液晶 / キラルドーパント / 反射型ディスプレイ / 電子ペーパー

Outline of Final Research Achievements

Liquid crystalline displays are known to have high power consumption rate. Reflective displays are expected to overcome this issue as they utilize environmental light rather than backlight. Cholesteric liquid crystals are one of the strong candidate to be applied for reflective displays. In this research, we have developed new type of dopants for cholesteric liquid crystals that can realize the electrical modulation of the reflection color. By using these dopants, we have succeeded in developing a device whose modulated color can be memorized, and a device that can be driven quickly by low voltage.

Free Research Field

材料化学