Transitions Optical, Inc.

Alan M Grubb

Ramaiahgari Reddy

Anil Kumar

Yannian Li

Meng He

Cory S Brown

Henry Nguyen

Ruisong Xu

Suvagata Tripathi

The present invention relates to mesogen compounds that include a first mesogen (Mesogen-1) and a second mesogen (Mesogen-2) that are connected by a linking group (-L-), as represented by the following Formula (I): Mesogen-1, and optionally Mesogen-2, each independently include the following terminal group, where R is hydrogen, alkyl, or alkoxy. Mesogen-2 optionally includes a terminal group P—, which is selected from R, acrylate, methacrylate, trihalomethacrylate, oxirane, hydroxyl, carboxylic acid, and carboxylic acid ester. Mesogen-1 and Mesogen-2 together include a total of at least seven, or at least eight, cyclic groups. In some cases, Mesogen-1 and Mesogen-2 are the same. The present invention also relates to liquid crystal compositions that include such mesogen compounds, and to optical elements that include such mesogen compounds.

Mesogen compounds

The present invention relates to mesogen compounds that include first, second, and third mesogens, in which the first and second mesogens are connected by a first linking group (-L-), and the second and third mesogens are connected by a second linking group (-L-), as represented by the following Formula (I), and as graphically illustrated by Formula (Ia) of FIG.of the drawing:(Mesogen-1)-L-(Mesogen-2)-L-(Mesogen-3)&#x2003;&#x2003;(I)At least one of Mesogen-1, Mesogen-2, or Mesogen-3 include at least four cyclic groups. The linking groups -L- and -L- are each free of mesogen properties (are each non-mesogenic) and each independently have an average chain length of at least 20 bonds. The mesogen compounds are optionally polymerizable. The present invention also relates to liquid crystal compositions that include such mesogen compounds, and to optical elements that include such mesogen compounds, such as in one or more mesogen-containing layers.

The present invention relates to mesogen compounds that include a first mesogen (Mesogen-1) and a second mesogen (Mesogen-2) that are connected by a linking group (-L-), as represented by the following Formula (I): Mesogen-1, and optionally Mesogen-2, each independently include the following terminal group,

Compounds that have ultraviolet light absorbing properties, and which can also have mesogenic properties. Compositions that include one or more such compounds. Articles of manufacture that include one or more such compounds, such as optical elements that include an optical substrate and a layer that includes at least one such compound.

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Pittsburgh, PA, United States of America

Alan M Grubb