Abstract
This paper introduces zirconia (ZrO 2 ) use in liquid crystal (LC) alignment for uniform and effective LC orientation. We used a conventional rubbing process to induce LC alignment. As a result, uniform LC alignments were achieved in all samples with ZrO 2 nanoparticles from 0.01 wt% to 0.3 wt%. Pretilt angles of LCs on ZrO 2 nanoparticles doped LC alignment layers slightly increased as the percentage of ZrO 2 nanoparticles rose. However, contact angles were almost the same. When twist-nematic (TN) LC cells used LC alignment layers with ZrO 2 nanoparticle content of 0.1 wt%, best performance was shown. Finally, it is shown that ZrO 2 nanoparticles doped LC alignment layers have more thermal budget than pristine ones in thermal stability test.
| Original language | English |
|---|---|
| Pages (from-to) | 90-96 |
| Number of pages | 7 |
| Journal | Molecular Crystals and Liquid Crystals |
| Volume | 553 |
| DOIs | |
| Publication status | Published - 2012 Feb 2 |
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All Science Journal Classification (ASJC) codes
- Chemistry(all)
- Materials Science(all)
- Condensed Matter Physics
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Liquid crystal alignment properties on zirconia doped polyimide layer. / Park, Hong Gyu; Kim, Hyungjun; Jeong, Hae Yoon; Yang, Suk; Kang, Young Gu; Lee, Hee Jun; Oh, Byeong Yun; Kim, Byoung Yong; Kim, Young Hwan; Park, Yong Pil; Han, Jeong Min; Seo, Dae-Shik.
In: Molecular Crystals and Liquid Crystals, Vol. 553, 02.02.2012, p. 90-96.Research output: Contribution to journal › Article
TY - JOUR
T1 - Liquid crystal alignment properties on zirconia doped polyimide layer
AU - Park, Hong Gyu
AU - Kim, Hyungjun
AU - Jeong, Hae Yoon
AU - Yang, Suk
AU - Kang, Young Gu
AU - Lee, Hee Jun
AU - Oh, Byeong Yun
AU - Kim, Byoung Yong
AU - Kim, Young Hwan
AU - Park, Yong Pil
AU - Han, Jeong Min
AU - Seo, Dae-Shik
PY - 2012/2/2
Y1 - 2012/2/2
N2 - This paper introduces zirconia (ZrO 2 ) use in liquid crystal (LC) alignment for uniform and effective LC orientation. We used a conventional rubbing process to induce LC alignment. As a result, uniform LC alignments were achieved in all samples with ZrO 2 nanoparticles from 0.01 wt% to 0.3 wt%. Pretilt angles of LCs on ZrO 2 nanoparticles doped LC alignment layers slightly increased as the percentage of ZrO 2 nanoparticles rose. However, contact angles were almost the same. When twist-nematic (TN) LC cells used LC alignment layers with ZrO 2 nanoparticle content of 0.1 wt%, best performance was shown. Finally, it is shown that ZrO 2 nanoparticles doped LC alignment layers have more thermal budget than pristine ones in thermal stability test.
AB - This paper introduces zirconia (ZrO 2 ) use in liquid crystal (LC) alignment for uniform and effective LC orientation. We used a conventional rubbing process to induce LC alignment. As a result, uniform LC alignments were achieved in all samples with ZrO 2 nanoparticles from 0.01 wt% to 0.3 wt%. Pretilt angles of LCs on ZrO 2 nanoparticles doped LC alignment layers slightly increased as the percentage of ZrO 2 nanoparticles rose. However, contact angles were almost the same. When twist-nematic (TN) LC cells used LC alignment layers with ZrO 2 nanoparticle content of 0.1 wt%, best performance was shown. Finally, it is shown that ZrO 2 nanoparticles doped LC alignment layers have more thermal budget than pristine ones in thermal stability test.
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UR - http://www.scopus.com/inward/citedby.url?scp=84862957465&partnerID=8YFLogxK
U2 - 10.1080/15421406.2011.609410
DO - 10.1080/15421406.2011.609410
M3 - Article
VL - 553
SP - 90
EP - 96
JO - Molecular Crystals and Liquid Crystals
JF - Molecular Crystals and Liquid Crystals
SN - 1542-1406
ER -