Blue-Phase liquid crystal display possesses potential to become next generation display technology because of its submillisecond response time, alignment-layer-free process and wide view angle. Intrinsically, BP only operates across a narrow temperature range due to the influence of intrinsic structural defects. Recently, the temperature range of BP has been successfully extended beyond 60K through the polymer-stabilized effect. Unfortunately, the structure of the polymer networks poses a number of problems, for instance, hysteresis effect, which degrades the accuracy of grayscale control, and residual birefringence, which decreases the contrast ratio of LCDs.
This paper investigates the voltage-induced hysteresis and residual birefringence in the polymer-stabilized blue phase I and II, under various phase separation conditions and material ratio. Based on experiment result, the polymer network morphology, distribution and pure BP temperature can result in a variety of PSBP electro-optical properties. Hysteresis and residual transmittance free PSBP display could be achieved by choosing appropriated phase separation condition and material ratio.
Key word¡Gblue phase¡Bmonomer¡Bhysteresis¡Bresidual transmittance
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0720111-230600 |
| Date | 20 July 2011 |
| Creators | Fan, Chun-Yuan |
| Contributors | Andy Ying-Guey Fuh, Tsung-Hsien Lin, Chin-Ping Yu, Shie-Chang Jeng, Chi-Yen Huang |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0720111-230600 |
| Rights | not_available, Copyright information available at source archive |
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