公开(公告)号：EP1168406A4

公开(公告)日：2007-01-17

申请号：EP00900830

申请日：2000-01-20

Applicant: TOSHIBA KK

Inventor： WASHIYAMA KOJI ,  IIDA KEISUKE ,  INAMURA MASAAKI

IPC: H01J29/89 ,  H01J9/227 ,  H01J29/18 ,  H01J29/32

CPC classification number: H01J29/327 ,  H01J9/2278 ,  H01J29/185

Abstract: A color CRT comprising a light absorbing layer (black layer) and an optical filter layer both disposed on the inner surface of a transparent panel, and a fluorescent layer formed on them, wherein a length from a sealing end of the panel with respect to a funnel to a peripheral end of a light absorbing layer formed on the inner surface of a side wall is larger than or equal to a length up to a peripheral end of an optical filter layer formed on the inner surface of a side wall of the panel. This color CRT is obtained by setting a length (trimming size a) from a sealing end of the panel to a peeling-off end of a light absorbing layer during a trimming process for a light absorbing layer to be not smaller than a length (trimming length b) from a sealing end of the panel to a peeling-off end of a filter layer during a trimming process for an optical filter layer. Thus, deposition and remaining of black pieces on the inner surface of the panel that may occur while trimming an optical filter layer can be prevented to provide a color CRT free from display defects.

公开(公告)号：EP0987730A4

公开(公告)日：2000-11-02

申请号：EP99912092

申请日：1999-04-01

Applicant: TOSHIBA KK ,  FUJI PIGMENT

Inventor： ITO TAKEO ,  WASHIYAMA KOJI ,  TANAKA HAJIME ,  NAKAZAWA TOMOKO ,  OYAIZU TSUYOSHI ,  SAKAI KAZUO ,  FUKUDA MASARU ,  INUBUSHI YOICHI

IPC: H01J9/227 ,  H01J29/32 ,  H01J31/12 ,  H01J31/20

CPC classification number: B32B5/16 ,  H01J9/2278 ,  H01J29/327 ,  Y10T428/257 ,  Y10T428/258

Abstract: A dispersion composition for black matrixes which comprises: manganese oxide having an average particle diameter of 50 to 2,000 nm or a manganese oxide/ferric oxide solid solution having an average particle diameter of 50 to 2,000 nm and a manganese content of 15 to 70 wt.%; a water-compatible acrylic resin; at least one dispersant selected from the group consisting of sodium, ammonium, or potassium salts of water-compatible acrylic resins and sodium, ammonium, or potassium salts of polycarboxylic acids, lignosulfonic acid, or bisphenolsulfonic acids; and water or a mixture of water and an organic solvent compatible therewith. The dispersion composition is highly effective in diminishing reflection by a light-absorbing layer on its surface in contact with a panel. Thus, a display, such as a color cathode-ray tube, can have a display surface on which external light is less apt to be reflected.

Abstract translation: 黑色矩阵用分散组合物，其中含有：平均粒径为50〜2000nm的氧化锰或平均粒径为50〜2000nm，锰含量为15〜70wt％的氧化锰/氧化铁固溶体。 ％; 水相容性丙烯酸树脂; 至少一种选自水相容性丙烯酸树脂的钠盐，铵盐或钾盐和多羧酸，木素磺酸或双酚磺酸的钠盐，铵盐或钾盐的分散剂; 和水或与水和与其相容的有机溶剂的混合物。 该分散组合物在减少其与面板接触的表面上的光吸收层的反射方面非常有效。 因此，诸如彩色阴极射线管的显示器可以具有外部光不易反射的显示表面。

公开(公告)号：EP1279705A4

公开(公告)日：2009-01-21

申请号：EP01919800

申请日：2001-04-06

Applicant: TOSHIBA KK

Inventor： ITO TAKEO ,  WASHIYAMA KOJI ,  OYAIZU TSUYOSHI ,  MAKIHARA HIROSHI ,  FUKUI TOSHIMI

IPC: C09K11/08 ,  B82Y20/00 ,  B82Y30/00 ,  B82Y99/00 ,  C01B13/14 ,  C01B33/12 ,  C01G7/00 ,  C09C3/06 ,  C09K11/00 ,  C09K11/02 ,  C09K11/56 ,  C09K11/84 ,  G02B5/20 ,  G02B5/22 ,  G02F1/1335 ,  H01J1/63 ,  H01J1/74 ,  H01J11/12 ,  H01J11/24 ,  H01J11/26 ,  H01J11/42 ,  H01J11/44 ,  H01J29/18 ,  H01J29/20 ,  H01J29/32 ,  H01J31/12

CPC classification number: H01J29/327 ,  B82Y30/00 ,  C01P2002/84 ,  C01P2004/64 ,  C01P2006/60 ,  C01P2006/65 ,  C09C3/06 ,  C09K11/025 ,  C09K11/642 ,  C09K11/7787 ,  C09K11/7789 ,  C09K11/7797 ,  G02B5/20 ,  G02B5/22 ,  H01J29/185 ,  H01J29/20

Abstract: An oxide composite particle, characterized in that it comprises an oxide particle matrix and, incorporated therein, at least one fine gold particle or comprises an oxide particle and, carried fixedly on the surface thereof, at least one fine gold particle, and absorbs a visible light having a specific wavelength; a phosphor such as the one emitting red color, characterized in that it have a thin film comprising above oxide composite particles on the surface of particles thereof; a method for producing the phosphor, which comprises incorporating phosphor particles into a dispersion of gold colloid/oxide composite particles, agitating the resultant mixture, and taking out the precipitated phosphor particles, followed by drying; a color filter, characterized in that at least one color filter layer formed inside a panel is a thin film comprising the above oxide composite particles. The above-mentioned phosphor and color filter are excellent in optical characteristics, heat resistance and non-toxicity, and is free from the adverse effect on the radiation of a photoresist with ultraviolet rays; and a color display manufactured by using the color filter exhibits good luminous chromaticity and is excellent in brightness and contrast.