New Diluter Solubilized in Liquid Crystal Compounds for High Stability and Fast Response Speed Liquid Crystal Displays
Diluters play a crucial role for reducing the rotational viscosity of liquid crystal (LC) materials for improving the response property of LC displays (LCDs). However, conventional diluters tend to deteriorate relatively easily under ultraviolet (UV) exposure, due to existence of vinyl groups. Hence...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-08-01
|
| Series: | Symmetry |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-8994/14/8/1620 |
| _version_ | 1797431700917059584 |
|---|---|
| author | Masanobu Mizusaki Kazuo Okamoto Toshihiro Shibata |
| author_facet | Masanobu Mizusaki Kazuo Okamoto Toshihiro Shibata |
| author_sort | Masanobu Mizusaki |
| collection | DOAJ |
| description | Diluters play a crucial role for reducing the rotational viscosity of liquid crystal (LC) materials for improving the response property of LC displays (LCDs). However, conventional diluters tend to deteriorate relatively easily under ultraviolet (UV) exposure, due to existence of vinyl groups. Hence, it was difficult to prepare polymer layers in the LC cells by exposing UV for polymerization regarding polymer-sustained vertically-aligned (PS-VA) and polyimide-free (PI-free) technologies. In this study, however, we succeeded to develop a high stable diluter, which shows a symmetrical structure and carries fluorinated groups for stable nematic phase and high affinity with other fluorinated LC compounds. With the use of the symmetrical-structured diluter, we developed the PS-VA and the PI-free in-plane switching cells with a fast response rate and high voltage holding ratio, by combining a reactive monomer including an azobenzene moiety. |
| first_indexed | 2024-03-09T09:49:04Z |
| format | Article |
| id | doaj.art-8d64d03eefc34a84aeb86e4ad7fe0d5a |
| institution | Directory Open Access Journal |
| issn | 2073-8994 |
| language | English |
| last_indexed | 2024-03-09T09:49:04Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Symmetry |
| spelling | doaj.art-8d64d03eefc34a84aeb86e4ad7fe0d5a2023-12-02T00:21:44ZengMDPI AGSymmetry2073-89942022-08-01148162010.3390/sym14081620New Diluter Solubilized in Liquid Crystal Compounds for High Stability and Fast Response Speed Liquid Crystal DisplaysMasanobu Mizusaki0Kazuo Okamoto1Toshihiro Shibata2Sharp Display Technology Corporation, Development Group, Tenri 632-8567, JapanOrgano Science Co., Ltd., Omaezaki 437-1617, JapanChiracol Co., Ltd., Saitama 331-0823, JapanDiluters play a crucial role for reducing the rotational viscosity of liquid crystal (LC) materials for improving the response property of LC displays (LCDs). However, conventional diluters tend to deteriorate relatively easily under ultraviolet (UV) exposure, due to existence of vinyl groups. Hence, it was difficult to prepare polymer layers in the LC cells by exposing UV for polymerization regarding polymer-sustained vertically-aligned (PS-VA) and polyimide-free (PI-free) technologies. In this study, however, we succeeded to develop a high stable diluter, which shows a symmetrical structure and carries fluorinated groups for stable nematic phase and high affinity with other fluorinated LC compounds. With the use of the symmetrical-structured diluter, we developed the PS-VA and the PI-free in-plane switching cells with a fast response rate and high voltage holding ratio, by combining a reactive monomer including an azobenzene moiety.https://www.mdpi.com/2073-8994/14/8/1620liquid crystal displayliquid crystal mixturediluterstabilitypolymer-sustained vertically aligned (PS-VA)PI-free |
| spellingShingle | Masanobu Mizusaki Kazuo Okamoto Toshihiro Shibata New Diluter Solubilized in Liquid Crystal Compounds for High Stability and Fast Response Speed Liquid Crystal Displays Symmetry liquid crystal display liquid crystal mixture diluter stability polymer-sustained vertically aligned (PS-VA) PI-free |
| title | New Diluter Solubilized in Liquid Crystal Compounds for High Stability and Fast Response Speed Liquid Crystal Displays |
| title_full | New Diluter Solubilized in Liquid Crystal Compounds for High Stability and Fast Response Speed Liquid Crystal Displays |
| title_fullStr | New Diluter Solubilized in Liquid Crystal Compounds for High Stability and Fast Response Speed Liquid Crystal Displays |
| title_full_unstemmed | New Diluter Solubilized in Liquid Crystal Compounds for High Stability and Fast Response Speed Liquid Crystal Displays |
| title_short | New Diluter Solubilized in Liquid Crystal Compounds for High Stability and Fast Response Speed Liquid Crystal Displays |
| title_sort | new diluter solubilized in liquid crystal compounds for high stability and fast response speed liquid crystal displays |
| topic | liquid crystal display liquid crystal mixture diluter stability polymer-sustained vertically aligned (PS-VA) PI-free |
| url | https://www.mdpi.com/2073-8994/14/8/1620 |
| work_keys_str_mv | AT masanobumizusaki newdilutersolubilizedinliquidcrystalcompoundsforhighstabilityandfastresponsespeedliquidcrystaldisplays AT kazuookamoto newdilutersolubilizedinliquidcrystalcompoundsforhighstabilityandfastresponsespeedliquidcrystaldisplays AT toshihiroshibata newdilutersolubilizedinliquidcrystalcompoundsforhighstabilityandfastresponsespeedliquidcrystaldisplays |