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US 7,582,338 B2Granted
Liquid crystal medium
AssigneesMerck Patent GmbH, Sharp Kabushiki Kaisha
InventorsHideo Ichinose, Yuko Arai, Takanori Takeda, Tsuyoshi Okazaki, Toshihiro Matsumoto, Masahiro Shimizu, Takashi Katayama
Life of this patent
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Abstract
Discloses are liquid crystal medium based on a mixture of polar compounds, the use thereof for electro-optical purposes, and displays containing the medium.
Claims19
A liquid crystal medium comprising
- 14 to 20% of two or three compounds of formula I,
- 0 to 5% of one compound of formula II,
- 15 to 19% of one or two compounds of formula III,
- 20 to 23% of two compounds of formula IV,
- 0 to 7% of one compound of formula V,
- 11 to 18% of one or two compounds of formula VI,
- 5 to 7% of one compound of formula VII,
- 0 to 5% of one compound of formula VIII, and
- 15 to 20% of two or three compounds of formula IX,
- wherein
- R1 and R2 are, independently of each other, straight-chain alkyl with 1 to 5 C atoms,
- R3 is straight-chain alkenyl with 2 to 4 C atoms,
- R4 is alkoxy with 1 or 2 C atoms,
- R5 is straight-chain alkenyl with 2 to 4 C atoms.
11 more elements
Dependencies are inferred from the claim text.