Research on flexible liquid crystal displays and development of super-flexible devices: For realizing ambient displays and super-large screen displays
Hideo FUJIKAKE1, Takahiro ISHINABE1, Yosei SHIBATA1
As a next-generation electronic display in an information-network based society, flexible liquid crystal displays using plastic substrates will create innovative human interfaces, because of the expansion of the degrees of freedom in storability, portability and design. Flexible displays exhibit great advantages with their ease of use in large-size fabrication, excellent operation stability and reliability, and low cost components and fabrication, compared with flexible organic light emitting diodes. We have proposed polymer wall spacers, made from a molecular-aligned solution of monomer and nematic liquid crystal, for keeping the substrate gap constant. We also developed ultra-thin polyimide film substrates having heat resistance by a coat-debond process. Using polymer wall spacers and substrates 10µm thick with high light transmittance and low optical anisotropy, super-flexible devices were achieved with 3mm-radius curvature resistance.
- 1 Department of Electronic Engineering, Graduate School of Engineering, Tohoku University