Liquid crystal mixture

Details Liquid crystal mixture Liquid crystal mixture

2005-10-25

2005-10-25

Wu, Shean C. (Department: 1756)

Stock material or miscellaneous articles

Liquid crystal optical display having layer of specified...

C252S299010, C252S299500, C546S184000, C546S186000, C546S208000

Reexamination Certificate

active

06958176

ABSTRACT:
Liquid crystal mixture comprising compounds of formula (I)whereinR1: is H or a linear or branched alkyl group or branched alkenyl groupR2: stands fora) H or Fb) a linear or branched alkyl group or a linear or branched alkenyl groupc) a radicalwherein R3, R4, R5, R6: are an alkyl groupM1, M2: represent independently from another a single bond, —OC(═O), —C(═O)O—, —OCH2—, —NH—A: isa) a linear or branched alkan-α,ω-diylgroup or alkene-α,ω-diyl groupb) the group —C(═Y)— wherein Y is CH-Z with Z being phenylen-1,4-diyl, optionally substituted by one to three halogenatoms, alkyl or alkyloxy groups,c) the group —CHY wherein Y is CH2-Z with Z being phenylen-1,4-diyl, optionally substituted by one to three halogenatoms, alkyl or alkyloxy groupsd) a groupwhereinp, q are 0, 1 or 2;M3is a single bond or —OC(═O)—, —C(═O)O—, —OCH2—, —CH2O—, —C≡C—, —CH2CH2—, —CH2CH2CH2CH2—the radicalsare phenylen-1,4-diyl,X is H, OH, a linear or branched alkyl or alkyloxy group,m: is 0 or 1X and M1-(A)m-M2-R2together can constitutea) a ring of 4 to 16 members,b) a combination of two either directly linked or spiro-linked rings.

REFERENCES:
patent: 3847930 (1974-11-01), Randell et al.
patent: 3954779 (1976-05-01), Smith et al.
patent: 4038280 (1977-07-01), Randell et al.
patent: 5384065 (1995-01-01), Geelhaar et al.
patent: 6506462 (2003-01-01), Tarumi et al.
patent: 6824707 (2004-11-01), Amakawa et al.
patent: 2003/0127627 (2003-07-01), Amakawa et al.
patent: 2 258 086 (1973-06-01), None
patent: 2 415 818 (1974-10-01), None
patent: 196 29 812 (1997-02-01), None
patent: 199 27 492 (1999-12-01), None
patent: 198 57 352 (2000-06-01), None
patent: 0 385 688 (1990-09-01), None
patent: 0 474 062 (1992-03-01), None
patent: 2 338 489 (1999-12-01), None
patent: 55023169 (1980-02-01), None
patent: 5117324 (1993-05-01), None
patent: 435235 (1993-08-01), None
patent: 631516 (1993-09-01), None
English abstract by Derwent and Japan Patent Office for JP 55-023169, 1980.
CAPLUS 1980: 541033.
XP-002157538, English abstract for JP 5117324, May 14, 1993.
XP-002157537, English abstract for JP 55023169, Feb. 19, 1980.
English abstract for SU 435235, Aug. 31, 1993.
English abstract for SU 631516, Sep. 1, 1993.
English abstract for DE 19857352, Jun. 15, 2000..
English abstract for RO 92779, Sep. 23, 1993.
XP-002157537, English abstract for JP 55023169, Feb. 19. 1980.
XP-002157538, English abstract for JP 51117324, May 14, 1993.
XP-002157539, English abstract for JP 11174642, Jul. 2, 1999.
W.J.A.M. Hartman, “Ferroelectric Liquid-Crystal Video Display”, IEEE Transactions on Electron Devices, vol. 36, No. 9, Sep. 1989, pp. 1895-1899.
Okumura, H., et al., 46.1: Invited paper: A 15-in XGA TFT-AFLCD with quasi-dc driving scheme for monitor applications, SID 98 Digest, pp. 1171-1174.
Nito, K., et al., “A novel surface-stabilized monostable ferroelectric LCD”, Journal of the SID, 1/2, 1993, pp. 163-169.
Furue, H., et al., “Monostable polymer-stabilized SSFLCD with high contrast ratio and grayscale capability”, IDW '98, pp. 209-212.
Takahashi T., et al., “Preliminary study of field sequential fullcolor liquid crystal display using polymer stabilized ferroelectric liquid crystal display”, Jpn. J. Appl. Phys., vol. 38 (1999) pp. L534-L536.
Nonaka, T. et al., “Material characteristics of an active matrix LCD based upon chiral smectics”, Liquid Crystals, 1999, No. 11, pp. 1599-1602.
Sasaki, A., et al., 3.1-Invited, “Active addressing for flat panel display”, Japan Display '86, pp. 62-67.
Nakazono, Y., et al., “Characterization of LC materials with negative dielectric anisotrophy for active matrix LCDs”, 1997 SID, pp. 65-68.
Fukuoka, N., et al., “DC offset voltage in liquid crystal cells”, AM LCD '94, pp. 216-219.
Takatoh, K., The application of (A)FLC materials to AM-LCD's , AM LCD '97, pp. 29-32.
Takatoh, K., et al., “Application of FLC/AFLC materials to active-matrix devices”, Polym. Adv. Technol., 11, 2002, pp. 413-426.
Petrov, V., “Liquid crystals for advanced display applications”, SPEI, vol. 2408, pp. 84-99.
Dabrowski, R., “Liquid crystalline materials for active matrix displays”, Bul. Wojsk. Akad. Techn., 48(4), 1999, pp. 5-34.
Kirsch, P., et al., “Nematic liquid crystals for active matrix displays: molecular design and synthesis”, Angew. Chem. Int. Ed., 2000, pp. 4216-4325.
Kiefer, R., et al., “In-plane switching of nematic liquid crystals”, Japan Display '92, pp. 547-550.
Ohmuro, K., et al., “33.3: Development of super-high-image-quality vertical-alignment-mode LCD”, SID 97 Digest, pp. 845-848.
Clark, Noel A., et al., “Submicrosecond bistable electro-optic switching in liquid crystals”, Appl. Phys. Lett. 36(11), Jun. 1, 1980, pp. 899-901.
Nagata, Seiichi, et al., 14.5: Capacitively Coupled Driving of TFT-LCD, SID 89 Digest, pp. 242-245.
Dagonneau, M., et al., “Chemistry of hindered amines from the piperidine series”, Synthesis, Dec. 1984, pp. 895-916.
Rozantsev, E.G., et al., “Discovery, chemistry, and application of hindered amines”, ACS Symp. Ser., 1985, pp. 11-35.
Skowronski, Romuald, et al., “synthesis of some 4-substituted 4-hydroxy-2,2,6,6-tetramethylpiperidines and their nitroxyl radicals”, Polish Journal of Chemistry, 54, 1980, pp. 195-202.
Hall, Patricia L., et al., “Mixed aggregation of lithium enolates and lithium halides with lithium 2,2,6,6-tetramethylpiperidide (LiTMP)”, J. Am. Chem. Soc., 1991, 113, pp. 9575-9585.
Tsukuda, T., “TFT/LCD liquid crystal displays addressed by thin film transistors”, Japanese Technology Reviews, 1996 Gordon and Breach, Title page and Table of Contents.

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