Energy-saving liquid-crystal mixtures

Details Energy-saving liquid-crystal mixtures Energy-saving liquid-crystal mixtures

2005-06-07

2005-06-07

Wu, Shean C. (Department: 1756)

Stock material or miscellaneous articles

Liquid crystal optical display having layer of specified...

C252S299610, C252S299630, C252S299660, C252S299670

Reexamination Certificate

active

06902776

ABSTRACT:
The invention relates to energy-saving liquid-crystalline media, in particular in twisted nematic (TN) and supertwisted nematic (STN) liquid-crystal displays, having very short response times and good steepnesses and angle dependences, and to electro-optical display devices containing these media and to the use of these media in electro-optical display devices, where the media comprise:a component (α) which comprises at least one compound of the formula Ianda component (β) which comprises at least one compound of the formula IIwhere the following applies for the dielectric anisotropy Δεcorrof the liquid-crystalline medium:Δ⁢ ⁢ɛcorr≤5·V10+32V102.(1)

REFERENCES:
patent: 6017469 (2000-01-01), Reiffenrath et al.
patent: 6531194 (2003-03-01), Hirschmann
patent: 6544602 (2003-04-01), Hirschmann et al.
patent: 6613401 (2003-09-01), Hirschmann et al.
patent: 6649229 (2003-11-01), Hirschmann

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