Parameter Space Design of a Guest-Host Liquid Crystal Device for Transmittance Control
A transmittance-control device requires a high transmittance difference between its transparent and opaque states. In this paper, we propose a systematic approach to find the condition for the maximum transmittance difference in a guest-host liquid crystal (GHLC) cell. To this end, we calculated the...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-01-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/9/2/63 |
| _version_ | 1798025581005111296 |
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| author | Seung-Min Nam Seung-Won Oh Sang-Hyeok Kim Jae-Won Huh Eunjung Lim Jinhong Kim Tae-Hoon Yoon |
| author_facet | Seung-Min Nam Seung-Won Oh Sang-Hyeok Kim Jae-Won Huh Eunjung Lim Jinhong Kim Tae-Hoon Yoon |
| author_sort | Seung-Min Nam |
| collection | DOAJ |
| description | A transmittance-control device requires a high transmittance difference between its transparent and opaque states. In this paper, we propose a systematic approach to find the condition for the maximum transmittance difference in a guest-host liquid crystal (GHLC) cell. To this end, we calculated the transmittance difference as we varied the cell gap and dye concentration. The transmittance of a GHLC cell is dependent on the alignment of dye molecules, cell gap, and dye concentration. We used a constant-transmittance contour map to find the condition for the desired transmittance of LC cells in each state and the transmittance difference of each LC mode. We experimentally confirmed that the design of a GHLC cell with the desired performance could be achieved through the proposed design process. |
| first_indexed | 2024-04-11T18:21:08Z |
| format | Article |
| id | doaj.art-a4c7de3175954d81a23de23a72e92fd4 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-04-11T18:21:08Z |
| publishDate | 2019-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-a4c7de3175954d81a23de23a72e92fd42022-12-22T04:09:45ZengMDPI AGCrystals2073-43522019-01-01926310.3390/cryst9020063cryst9020063Parameter Space Design of a Guest-Host Liquid Crystal Device for Transmittance ControlSeung-Min Nam0Seung-Won Oh1Sang-Hyeok Kim2Jae-Won Huh3Eunjung Lim4Jinhong Kim5Tae-Hoon Yoon6Department of Electronics Engineering, Pusan National University, Busan 46241, KoreaDepartment of Electronics Engineering, Pusan National University, Busan 46241, KoreaDepartment of Electronics Engineering, Pusan National University, Busan 46241, KoreaDepartment of Electronics Engineering, Pusan National University, Busan 46241, KoreaLG Chem R&D Campus Daejeon, Daejeon 34122, KoreaLG Chem R&D Campus Daejeon, Daejeon 34122, KoreaDepartment of Electronics Engineering, Pusan National University, Busan 46241, KoreaA transmittance-control device requires a high transmittance difference between its transparent and opaque states. In this paper, we propose a systematic approach to find the condition for the maximum transmittance difference in a guest-host liquid crystal (GHLC) cell. To this end, we calculated the transmittance difference as we varied the cell gap and dye concentration. The transmittance of a GHLC cell is dependent on the alignment of dye molecules, cell gap, and dye concentration. We used a constant-transmittance contour map to find the condition for the desired transmittance of LC cells in each state and the transmittance difference of each LC mode. We experimentally confirmed that the design of a GHLC cell with the desired performance could be achieved through the proposed design process.https://www.mdpi.com/2073-4352/9/2/63transmittance-control deviceliquid crystalguest-host liquid crystaldichroic dye |
| spellingShingle | Seung-Min Nam Seung-Won Oh Sang-Hyeok Kim Jae-Won Huh Eunjung Lim Jinhong Kim Tae-Hoon Yoon Parameter Space Design of a Guest-Host Liquid Crystal Device for Transmittance Control Crystals transmittance-control device liquid crystal guest-host liquid crystal dichroic dye |
| title | Parameter Space Design of a Guest-Host Liquid Crystal Device for Transmittance Control |
| title_full | Parameter Space Design of a Guest-Host Liquid Crystal Device for Transmittance Control |
| title_fullStr | Parameter Space Design of a Guest-Host Liquid Crystal Device for Transmittance Control |
| title_full_unstemmed | Parameter Space Design of a Guest-Host Liquid Crystal Device for Transmittance Control |
| title_short | Parameter Space Design of a Guest-Host Liquid Crystal Device for Transmittance Control |
| title_sort | parameter space design of a guest host liquid crystal device for transmittance control |
| topic | transmittance-control device liquid crystal guest-host liquid crystal dichroic dye |
| url | https://www.mdpi.com/2073-4352/9/2/63 |
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