Title :
Electrode Dimension Effects on Blue-Phase Liquid Crystal Displays
Author :
Chen, Kuan-Ming ; Yan, Jin ; Wu, Shin-Tson ; Chang, Yu-Pei ; Tsai, Chen-Chu ; Shiu, Jyh-Wen
Author_Institution :
Coll. of Opt. & Photonics, Univ. of Central Florida, Orlando, FL, USA
fDate :
7/1/2011 12:00:00 AM
Abstract :
Electrode dimension effects on the electro-optic properties of a polymer-stabilized blue-phase liquid crystal (PS-BPLC) are investigated experimentally. By reducing the width and gap of the in-plane-switching (IPS) electrodes, the operating voltage of the PS-BPLC is decreased significantly while keeping over 80% transmittance. This unexpected high transmittance results from fringing field migration into the electrode region, which in turn activates more BPLC material and enlarges the aperture ratio. Further reducing electrode dimension to 2 m would cause some undesirable effects, such as increased response time and hysteresis due to electrostriction effect and phase transition, and ultimately damage the polymer networks.
Keywords :
electro-optical effects; electrodes; electrostriction; hysteresis; liquid crystal displays; polymer dispersed liquid crystals; blue phase liquid crystal displays; electro-optic property; electrode dimension effect; electrostriction effect; fringing field migration; in plane switching electrode; phase transition; polymer network damage; polymer stabilized blue phase liquid crystal; Dielectrics; Electrodes; Hysteresis; Liquid crystal displays; Liquid crystals; Polymers; Time factors; BPLC; electrode effects;
Journal_Title :
Display Technology, Journal of
DOI :
10.1109/JDT.2011.2153177
