Host: The Japanese Liquid Crystal Society
Name : Japanese Liquid Crystal Conference 2016
Location : [in Japanese]
Date : September 05, 2016 - September 07, 2016
Liquid-crystal cylindrical-lens-array (LC-CLA) having two pairs of slit-patterned electrodes was studied as a device to control light distribution properties. The LC-CLA has a pair of separated two circuit to drive independently, that can work as light deflection and diffusion. In the experiment using LED light with stacking two LC-CLA (each LC thickness: 80um), the light deflection angle of 26 degrees were obtained by same driving condition for both. While, the diffusion state of ± 26 degrees were obtained by driving in opposite direction. By the conventional step switching method, rising time is 7 seconds and recovery time is 13 seconds. We succeeded to make those response times less than one-tenth, introducing over-drive-pulse and reset-pulse at switching of turn on and off, respectively.
