Flexible and reflective polarizer-free liquid crystal displays using dye-doped liquid crystal gels

Yi-Hsin Lin; Jhih-Ming Yang; Shie-Chang Jeng; Yan-Rung Lin; Chi-Chang Liao

doi:10.1117/12.762649

29 January 2008 Flexible and reflective polarizer-free liquid crystal displays using dye-doped liquid crystal gels

Yi-Hsin Lin, Jhih-Ming Yang, Shie-Chang Jeng, Yan-Rung Lin, Chi-Chang Liao

Proceedings Volume 6911, Emerging Liquid Crystal Technologies III; 691108 (2008) https://doi.org/10.1117/12.762649
Event: Integrated Optoelectronic Devices 2008, 2008, San Jose, California, United States

Abstract

A flexible and reflective polarizer-free display using dye-doped liquid crystal (LC) gels is demonstrated. The electro-optical performances of both scattering and absorption based dye-doped LC gels depend on curing temperatures. The dye-doped LC gel shows good reflectance ~55%, good contrast ratio~450:1 and fast response~6.5ms at curing temperature 10 °C when UV curing intensity is 2.6 mW/cm². The EO performance depends on the curing temperature. The hysteresis is independent of sampling time duration. The bending curvature is 21 mm. The response of dye-doped LC gels is faster under bending due to the bending-induced sheared force of polymer networks. The dye-doped LC gels open a new window for trimable electronic papers, decorative displays and switchable curtains.

Citation Download Citation

Yi-Hsin Lin, Jhih-Ming Yang, Shie-Chang Jeng, Yan-Rung Lin, and Chi-Chang Liao "Flexible and reflective polarizer-free liquid crystal displays using dye-doped liquid crystal gels", Proc. SPIE 6911, Emerging Liquid Crystal Technologies III, 691108 (29 January 2008); https://doi.org/10.1117/12.762649

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