Date

Place

[34-2]
11:00 ~ 11:25
Title:[Invited] Slippery Interfaces ?Low Driving Voltage and Ultra-Fast Switching for DH-FLC Mode-
Jun Yamamoto (Kyoto Univ., Japan) and Isa Nishiyama (DIC Corp., Japan)
Abstract: We have designed the slippery interfaces in the homeotropic ferroelectric (SmC*) liquid crystals for the DH-FLC mode as walls wetted on the electrodes in the in-plane switching cell, and success to reduce the driving voltage keeping the ultra-fast response (<100 microsec). Slippery interface provides us the following three big advantages for the efficiency of the light bulbs of flat panel application. (1) Driving voltage can be drastically reduced (1~2 order <1~2V/micro m). (2) Response time for the fast component does not decelerate and keeps the same speed as that of the original material. (3) The speed of recovery to the black state can be accelerated by applying a short pulse with negative sign of the voltage (<100 micro sec almost same as rise-up time). This is because the electrically induced polar order of C-director become large by the strong modulation of the distribution of C-director due to easiness of helix unwinding or rewinding motion with slippery interfaces.
PDF Download

Type