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US 2016/0137923 A1Published application
Liquid crystal medium
AssigneeMerck Patent GmbH
InventorsHyun-Jin YOON, Ji-Won JEONG, Eun-Kyu LEE, Min-Ok JIN, Yong-Kuk YUN
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Abstract
The present invention relates to a liquid crystal (LC) medium comprising a terphenyl compound and at least two polymerizable compounds, to a process for its preparation, to its use for optical, electro-optical and electronic purposes, in particular in LC displays, especially in an LC display of the polymer sustained alignment (PSA) type, and to an LC display, especially a PSA display, comprising it.
Claims17
A liquid crystal (LC) medium comprising
- at least one polymerizable compound having two or more polymerizable groups at a concentration ≦2% by weight,
- at least one polymerizable compound having three or more polymerizable groups at a concentration ≦1% by weight,
- at least one terphenyl compound of formula T at a concentration ≦5% by weight,
- in which
- each, independently of one another, denote
- L5 and L6 are each independently F, Cl, OCF3, CF3, CH3, CH2F or CHF2, and
- R1, R2 each, independently of one another, are alkyl having 1 to 12 C atoms, where, in addition, one or two non-adjacent CH2 groups may be replaced by —O—, —CH═CH—, —CO—, —OCO— or —COO— in such a way that O atoms are not linked directly to one another.
4 more elements
Dependencies are inferred from the claim text.