Abstract
We investigate the effect of thermal annealing (TA) on cholesteric cells. When a cell is heated to the cholesteric-isotropic transition temperature (Tci), the cholesteric phase coexists with the isotropic phase. The isotropic domains become oily streaks, but the cholesteric domains merge with each other as the cell naturally cools to room temperature. A repeated T ci TA processes that entails heating the cell to Tci followed by cooling to room temperature effectively suppresses oily streaks and expands planar texture domains. Through this method, a defect-free cholesteric cell is achieved after five repeated Tci TA processes.
| Original language | English |
|---|---|
| Article number | 071301 |
| Journal | Japanese Journal of Applied Physics |
| Volume | 48 |
| Issue number | 7 PART 1 |
| DOIs | |
| Publication status | Published - 2009 Jul 1 |
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All Science Journal Classification (ASJC) codes
- Engineering(all)
- Physics and Astronomy(all)
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Planar texture improvement in cholesteric liquid crystal cells. / Tien, Ching Jui; Huang, Chi Yen; Kao, Yee Mon; Yang, Po Chih; Liu, Jui Hsiang.
In: Japanese Journal of Applied Physics, Vol. 48, No. 7 PART 1, 071301, 01.07.2009.Research output: Contribution to journal › Article
TY - JOUR
T1 - Planar texture improvement in cholesteric liquid crystal cells
AU - Tien, Ching Jui
AU - Huang, Chi Yen
AU - Kao, Yee Mon
AU - Yang, Po Chih
AU - Liu, Jui Hsiang
PY - 2009/7/1
Y1 - 2009/7/1
N2 - We investigate the effect of thermal annealing (TA) on cholesteric cells. When a cell is heated to the cholesteric-isotropic transition temperature (Tci), the cholesteric phase coexists with the isotropic phase. The isotropic domains become oily streaks, but the cholesteric domains merge with each other as the cell naturally cools to room temperature. A repeated T ci TA processes that entails heating the cell to Tci followed by cooling to room temperature effectively suppresses oily streaks and expands planar texture domains. Through this method, a defect-free cholesteric cell is achieved after five repeated Tci TA processes.
AB - We investigate the effect of thermal annealing (TA) on cholesteric cells. When a cell is heated to the cholesteric-isotropic transition temperature (Tci), the cholesteric phase coexists with the isotropic phase. The isotropic domains become oily streaks, but the cholesteric domains merge with each other as the cell naturally cools to room temperature. A repeated T ci TA processes that entails heating the cell to Tci followed by cooling to room temperature effectively suppresses oily streaks and expands planar texture domains. Through this method, a defect-free cholesteric cell is achieved after five repeated Tci TA processes.
UR - http://www.scopus.com/inward/record.url?scp=72049109425&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=72049109425&partnerID=8YFLogxK
U2 - 10.1143/JJAP.48.071301
DO - 10.1143/JJAP.48.071301
M3 - Article
AN - SCOPUS:72049109425
VL - 48
JO - Japanese Journal of Applied Physics
JF - Japanese Journal of Applied Physics
SN - 0021-4922
IS - 7 PART 1
M1 - 071301
ER -