Liquid crystal with an incorporated pleochroic anthraquinone dyestuff and its use
Abstract
Abstract Translated from German Anthrachinon-Farbstoff der allgemeinen Formel <IMAGE> mit R¹,R³, R<4> und R<6> = H, OH, OCH3, NO2, NH2 oder NHCH3 und mit R², R<5> = a) Alkyl-, Aryl-, Alkylaryl-, Alkoxyaryl-, Aminoaryl-, Alkylaminoaryl-, Arylaminoaryl- oder <IMAGE> wobei R<7> = Alkyl-, Aryl-, Amino-, Alkylamino-, Dialkylamino-, Arylamino-, Alkyloxy-, Aryloxy-Rest. Der Farbstoff eignet sich vor allem für Flüssigkristallanzeigen, die mit dem "guest host"-Effekt arbeiten. Anthraquinone dye of the general formula <IMAGE> with R¹, R³, R <4> and R <6> = H, OH, OCH3, NO2, NH2 or NHCH3 and with R², R <5> = a) alkyl, aryl -, Alkylaryl, alkoxyaryl, aminoaryl, alkylaminoaryl, arylaminoaryl or <IMAGE> where R <7> = alkyl, aryl, amino, alkylamino, dialkylamino, arylamino, alkyloxy, aryloxy radical . The dye is particularly suitable for liquid crystal displays which work with the "guest host" effect.
Inventors
- 👤 Alexander Dipl.-Chem. Möller
- 👤 Günther Dr. Scherowsky
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.