CONTROL OF ASSOCIATED STATE OF ORGANIC DYE USING MAGNETIC FIELD

    公开(公告)号:JPS63139324A

    公开(公告)日:1988-06-11

    申请号:JP28753086

    申请日:1986-12-02

    Abstract: PURPOSE:To prompt the formation of J associated body and to transform a part of the area of thin film selectively to associate by controlling the associated state of org. dye molecules in Langmuir-Blodgett's film which is a typical example of org. ultra thin film by the impression of magnetic field. CONSTITUTION:A magnetic field is impressed to associated org. dye molecules in Langmuir-Blodgett's film which is a typical example of org. ultra thin film to prompt the formation of J associated body. An org. dye having the structure for forming the J associated body is used as the org. dye molecule. Suitable org. dye molecule is a molecule of cyanine dye, merocyanine dye, or squarylium dye. Further, the magnetic field to be impressed to the associated org. dye molecules is regulated to >=100 gauss. Thus, the formation of J associated body is prompted and selective transformation of a part of the area of thin film to associate has become possible.

    LIQUID CRYSTAL DISPLAY ELEMENT
    5.
    发明专利

    公开(公告)号:JPH04278923A

    公开(公告)日:1992-10-05

    申请号:JP6791391

    申请日:1991-03-07

    Abstract: PURPOSE:To obviate the generation of dust and the rupture of films, etc., by subjecting thin films formed of org. molecules contg. arom. rings by using an LB method (Langmuir-Blodgette method) to a heat treatment to cause thermal decomposition polymn. thereby forming conductive or semiconductive thin films. CONSTITUTION:The thin films are formed of the org. molecules having the arom. rings by using the LB method. The thin films are then heat treated in a high vacuum or inert gaseous atmosphere to cause the thermal decomposition polymn., by which the org. thin films having both of a liquid crystal orienting function and a conductive or semiconductive function in combination are formed. The LB films obtd. in such a manner are used as liquid crystal oriented films 3. For example, two sheets of LB film accumulated substrates 4, 4 laminated with transparent electrodes 2 and the liquid crystal oriented films 3 successively on glass substrates 1 are disposed to face each other in such a manner that the immersion directions intersect orthogonally with each other and a spacer 5 is interposed therebetween to form a liquid crystal cell 6. A liquid crystal 7 is injected into the cell 6 and the cell is so formed that the electrodes 2 and 2 can be energized therebetween.

    PRODUCTION OF SQUARYLIUM PIGMENT
    7.
    发明专利

    公开(公告)号:JPH01230674A

    公开(公告)日:1989-09-14

    申请号:JP5912688

    申请日:1988-03-11

    Abstract: PURPOSE:To obtain a high-purity squarylium pigment suitable as, e.g., a recording material for optical discs is high yields, by condensing a specified colorant intermediate through dehydration with squaric acid in an organic solvent under a pressure higher than a specified value. CONSTITUTION:A colorant intermediate of the general formula R-H [wherein R is formula I, II, III or IV, R is C18H37, R is H, CH3 or Cl, R is CH3, R is H or CH3, R is H or Cl, X is C(CH3)2, Se or S, and Y is p- chlorobenzenesulfonic acid], e.g., (2,3,3-trimethyl-1-octadecyl-indolinium) p- chlorobenzenesulfonate, is condensed through dehydration with squaric acid in an organic solvent (e.g., methanol) under a high pressure >=1000kg/cm to obtain a squarylium colorant of formula V.

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