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Correction published on 30 December 2010, see Materials 2011, 4(1), 103.
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Development of Highly Soluble Anthraquinone Dichroic Dyes and Their Application to Three-Layer Guest-Host Liquid Crystal Displays

Corporate Research & Development Center, Toshiba Corporation, 1 Komukai-Toshiba-cho, Saiwaiku, Kawasaki 212-8582, Japan
Materials 2009, 2(4), 1636-1661; https://doi.org/10.3390/ma2041636
Received: 31 August 2009 / Revised: 9 October 2009 / Accepted: 21 October 2009 / Published: 23 October 2009
(This article belongs to the Special Issue Liquid Crystals)
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. View Full-Text
Keywords: anthraquinone dichroic dyes; coumarin dye; solubility; three-layer GH-LCDs; fluorinated liquid crystals anthraquinone dichroic dyes; coumarin dye; solubility; three-layer GH-LCDs; fluorinated liquid crystals
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Iwanaga, H. Development of Highly Soluble Anthraquinone Dichroic Dyes and Their Application to Three-Layer Guest-Host Liquid Crystal Displays. Materials 2009, 2, 1636-1661.

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