Sony Corporation

Other

Akihiko Yoshida

Masatoshi Mori

Jun Yamazaki

Toshihiro Ito

Atsumi Wakabayashi

Hitoshi Kimata

Kimiyo Ibaraki

Yasunori Metsugi

Shunichi Abe

A paint for forming a heat absorbing film which exhibits a good binding property for binding with a conductive reflecting film, contains a black pigment, and a compound represented by Si(OR ) R , where n&plus;m&equals;4, n&equals;1 to 4, m&equals;0 to 3, each of R and R is one of an alkyl group, an alkenyl group and an aryl group, or a hydrolyzate of the compound. Also, the present invention relates to a heat absorbing film formed out of this heat absorbing film paint and a color CRT provided with this heat absorbing film.

Paint for heat absorbing film, heat absorbing film and color CRT

A cathode-ray tube having a color-selecting electrode which is secured to a fluorescent glass panel by fitting fixing springs provided on the color-selecting electrode to fixing pins, respectively, which are provided on the fluorescent glass panel. The fixing springs have a shape factor K in the range of from 10 mm.sup.3 /kg to 100 mm.sup.3 /kg, the shape factor K being given by

Cathode-ray tube with fixing springs for color selection electrode

A color cathode-ray tube is demagnetized or magnetized in a magnetic transfer process with a direct-current biasing magnetic field, using an alternating-current magnetic field which is attenuated to a median thereof in a median attenuating time of at least 0.1 second.

Method of magnetically processing color cathode-ray tube

A method of degaussing a cathode ray tube where two pairs of degaussing coils are arranged with one pair located at the top and bottom and the other to the right and left of the cathode ray tube after impaired color purity correction process of an electron beam has been carried out for the cathode ray tube using a magnetization process with a magnetization including an anticipated amount of degaussing for the cathode ray tube when the cathode ray tube is incorporated in a display device. The degaussing of a magnetic material within the cathode ray tube is then carried out with the anticipated amount of degaussing using the degaussing coils. In this way, a color cathode ray tub with no impaired color purity can be provided because the cathode ray trajectories corrected by magnetization in the magnetization process is not easily changed during use after incorporation in the display device.

Growing community of inventors

Aichi, Japan

Akihiko Yoshida