Development of Highly Soluble Anthraquinone Dichroic Dyes and Their Application to Three-Layer Guest-Host Liquid Crystal Displays
The relationships between molecular structures and properties of anthraquinone dichroic dyes were studied and dyes with large solubilities and dichroic ratios were developed. The yellow anthraquinone dye behaves as a quencher of the coumarin dye, and the mixture has a large absorption coefficient wi...
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| Format: | Article |
| Language: | English |
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MDPI AG
2009-10-01
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| Series: | Materials |
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| Online Access: | http://www.mdpi.com/1996-1944/2/4/1636/ |
| _version_ | 1811258193408425984 |
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| author | Hiroki Iwanaga |
| author_facet | Hiroki Iwanaga |
| author_sort | Hiroki Iwanaga |
| collection | DOAJ |
| description | The relationships between molecular structures and properties of anthraquinone dichroic dyes were studied and dyes with large solubilities and dichroic ratios were developed. The yellow anthraquinone dye behaves as a quencher of the coumarin dye, and the mixture has a large absorption coefficient without fluorescence. These technologies can enlarge the color reproduction area of three-layer guest-host liquid crystal displays (GHLCDs) 1.6-fold. The performances of the prototype reflective three-layer GH-LCDs are as follows: the white state luminous reflectance is 43% and the contrast is 5.3, indicating that they are promising candidates for portable information systems with full-color images. |
| first_indexed | 2024-04-12T18:09:25Z |
| format | Article |
| id | doaj.art-b1868692b32b40d9b158ee57384ddd64 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-04-12T18:09:25Z |
| publishDate | 2009-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-b1868692b32b40d9b158ee57384ddd642022-12-22T03:21:52ZengMDPI AGMaterials1996-19442009-10-01241636166110.3390/ma2041636Development of Highly Soluble Anthraquinone Dichroic Dyes and Their Application to Three-Layer Guest-Host Liquid Crystal DisplaysHiroki IwanagaThe relationships between molecular structures and properties of anthraquinone dichroic dyes were studied and dyes with large solubilities and dichroic ratios were developed. The yellow anthraquinone dye behaves as a quencher of the coumarin dye, and the mixture has a large absorption coefficient without fluorescence. These technologies can enlarge the color reproduction area of three-layer guest-host liquid crystal displays (GHLCDs) 1.6-fold. The performances of the prototype reflective three-layer GH-LCDs are as follows: the white state luminous reflectance is 43% and the contrast is 5.3, indicating that they are promising candidates for portable information systems with full-color images.http://www.mdpi.com/1996-1944/2/4/1636/anthraquinone dichroic dyescoumarin dyesolubilitythree-layer GH-LCDsfluorinated liquid crystals |
| spellingShingle | Hiroki Iwanaga Development of Highly Soluble Anthraquinone Dichroic Dyes and Their Application to Three-Layer Guest-Host Liquid Crystal Displays Materials anthraquinone dichroic dyes coumarin dye solubility three-layer GH-LCDs fluorinated liquid crystals |
| title | Development of Highly Soluble Anthraquinone Dichroic Dyes and Their Application to Three-Layer Guest-Host Liquid Crystal Displays |
| title_full | Development of Highly Soluble Anthraquinone Dichroic Dyes and Their Application to Three-Layer Guest-Host Liquid Crystal Displays |
| title_fullStr | Development of Highly Soluble Anthraquinone Dichroic Dyes and Their Application to Three-Layer Guest-Host Liquid Crystal Displays |
| title_full_unstemmed | Development of Highly Soluble Anthraquinone Dichroic Dyes and Their Application to Three-Layer Guest-Host Liquid Crystal Displays |
| title_short | Development of Highly Soluble Anthraquinone Dichroic Dyes and Their Application to Three-Layer Guest-Host Liquid Crystal Displays |
| title_sort | development of highly soluble anthraquinone dichroic dyes and their application to three layer guest host liquid crystal displays |
| topic | anthraquinone dichroic dyes coumarin dye solubility three-layer GH-LCDs fluorinated liquid crystals |
| url | http://www.mdpi.com/1996-1944/2/4/1636/ |
| work_keys_str_mv | AT hirokiiwanaga developmentofhighlysolubleanthraquinonedichroicdyesandtheirapplicationtothreelayerguesthostliquidcrystaldisplays |