Stock material or miscellaneous articles – Liquid crystal optical display having layer of specified... – With charge transferring layer of specified composition
Patent
1997-05-08
1999-07-27
Thomas, Alexander
Stock material or miscellaneous articles
Liquid crystal optical display having layer of specified...
With charge transferring layer of specified composition
349123, 349135, G02F 11337
Patent
active
059287330
ABSTRACT:
An active-matrix liquid crystal display device employing the in-plane switching mode in which an electric field substantially parallel to the substrate surface is applied to the liquid crystals, characterized by weak torsional anchoring of the liquid crystal molecules and the alignment layer surface at the liquid crystal/alignment layer interface to an extent that the extrapolation length which expresses the strength of said torsional anchoring will become not less than 10% of the gap between the substrates. For obtaining such weak torsional anchoring, an organic alignment layer comprising a polymer and/or oligomer having long-chain alkylene and/or fluoro groups, or an inorganic alignment layer formed by oblique evaporation technique, or a photo-reactive alignment layer formed by linearly polarized light irradiation is used.
REFERENCES:
patent: 5344916 (1994-09-01), Harris et al.
patent: 5480964 (1996-01-01), Harris et al.
"Wide Viewing-Angle Displays with In-Plane Switching Mode of Nematic LCs Addressed by TFTs", M. Ohta et al, IEICE Transactions on Electronics, vol. E379-C No. 8, Aug. 1996.
"Dependence of Viewing Angle Characteristics on Pretilt Angle in the In-Plane Switching Mode", M. Oh-e et al, Liquid Crystals, Dec. 1997, vol. 22, No. 4, 391-400.
"The In-Plane Switching of Homogeneously Aligned Nematic Liquid Crystals", M. Oh-e et al, Liquid Crystals, Apr. 1997, vol. 22, No. 4, 379-390.
Iwasaki Kishiro
Kondo Katsumi
Nagae Yoshiharu
Tomioka Yasushi
Yokokura Hisao
Hitachi , Ltd.
Thomas Alexander
LandOfFree
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