Abstract: A transparent electrically-conductive film comprising a substrate made of an aliphatic polyimide having a repeating unit of the formula [I] and a transparent electrically-conductive thin film layer, the transparent electrically-conductive thin film layer being provided on the substrate, wherein R is a tetravalent aliphatic group having 4 to 39 carbon atoms and ? is a divalent aliphatic group having 1 to 39 carbon atoms or a divalent aromatic group having 6 to 39 carbon atoms; an organic EL element using the above film; a thin-film transistor substrate comprising a substrate formed of a film of a polyimide having a repeating unit of the formula [I] and, provided thereon, a thin-film transistor; and an organic EL element using the above transistor substrate.

Abstract: In the process of the present invention, a solvent-soluble polyimide is produced by polycondensing at least one tetracarboxylic acid component with at least one diamine component in a solvent in the presence of a tertiary amine.

Abstract: A transparent electrically-conductive film comprising a substrate made of an aliphatic polyimide having a repeating unit of the formula [I] and a transparent electrically-conductive thin film layer, the transparent electrically-conductive thin film layer being provided on the substrate, 1

Abstract: A cathode-ray tube apparatus capable of reducing a high frequency electric field radiated from the deflection yoke and the deflection and high voltage circuit to the outside of the cathode-ray tube apparatus. Mounted on the deflection yoke or on the cathode-ray tube are an induction coil for generating a pulse voltage opposite in polarity to a high pulse voltage applied to the h and an electric field cancellation electrode made of a conductive wire to which the opposite polarity pulse voltage is applied. When the opposite polarity pulse voltage is applied to the electric field cancellation electrode, the electric field cancellation electrode radiates an electric field opposite in polarity to the high frequency electric field radiated from the deflection yoke to the outside of the cathode-ray tube apparatus to reduce the intensity of the high frequency electric field.

Abstract: A cathode-ray tube apparatus capable of reducing a high frequency electric field radiated from the deflection yoke and the deflection and high voltage circuit to the outside of the cathode-ray tube apparatus. Mounted on the deflection yoke or on the cathode-ray tube are an induction coil for generating a pulse voltage opposite in polarity to a high pulse voltage applied to the h and an electric field cancellation electrode made of a conductive wire to which the opposite polarity pulse voltage is applied. When the opposite polarity pulse voltage is applied to the electric field cancellation electrode, the electric field cancellation electrode radiates an electric field opposite in polarity to the high frequency electric field radiated from the deflection yoke to the outside of the cathode-ray tube apparatus to reduce the intensity of the high frequency electric field.

Abstract: The disclosed relates to a convergence apparatus to be used for a single electron gun type cathode-ray tube, and relates to a convergence yoke to be used for the convergence apparatus. Each of two magnetic poles for generating a bipolar magnetic field is constituted by a first one of a plurality of core protrusions located on a horizontal or vertical axis and at least one pair of second ones of the plurality of core protrusions located at positions equiangularly and symmetrically deviated from the horizontal or vertical axis, and a ratio of an ampere turn of the coil wound on each of at least one pair of second core protrusions to an ampere turn of the coil wound on the first core protrusion is suitably changed. A firt magnetic auxiliary plate and a second magnetic auxiliary plate are provided on a first core protrusion constituting each of a first pair of magnetic poles and on a second core protrusion constituting each of a second pair of magnetic poles respectively.

Abstract: Subcoils are provided on the core portion that serves as a deflection yoke, and a current for correcting convergence is supplied to the subcoils to correct convergence. Further, means is provided to suppress harmful current that is produced by mutual induction between the subcoils and the deflection coils, and whereby the deflection of electron beam and the correction of convergence are effected independently of each other.

Abstract: A convergence correcting device for correcting mis-convergence of a cathode ray tube having in-line electron guns and, at the same time, correcting coma at the top and bottom of the screen, the device comprising pole pieces provided for the outermost electron beams for producing 4-pole magnetic fields used for convergence correction, a convergence yoke for applying the magnetic fields to the pole pieces, a convergence coil wound on the convergence yoke, a coil for producing a coma correcting magnetic field which cancels a leakage flux created between the right and left pole pieces by the vertical deflection coil, and current sources for supply currents to the coils.