发明授权
- 专利标题: Color picture tube having a phosphor screen with a semitransparent black light absorption
- 专利标题(中): 彩色显象管具有具有半透明黑光吸收的荧光屏
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申请号: US557066申请日: 1990-07-25
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公开(公告)号: US5045750A公开(公告)日: 1991-09-03
- 发明人: Takeo Itou , Hidemi Matsuda , Kazuhiko Shimizu , Hajime Tanaka
- 申请人: Takeo Itou , Hidemi Matsuda , Kazuhiko Shimizu , Hajime Tanaka
- 申请人地址: JPX Kawasaki
- 专利权人: Kabushiki Kaisha Toshiba
- 当前专利权人: Kabushiki Kaisha Toshiba
- 当前专利权人地址: JPX Kawasaki
- 优先权: JPX1-195211 19890727
- 主分类号: H01J29/32
- IPC分类号: H01J29/32
摘要:
A color picture tube includes a vacuum envelope having a faceplate, a phosphor screen formed to include semitransparent black light-absorption layers coated on a first region of the faceplate in stripes or in a matrix, and phosphor layers of blue, red and green emitting phosphors coated on a second region of the faceplate in stripes or in dots, and an electron gun, arranged within the vacuum envelope, for emitting and focusing electron beams. End portions of the phosphor layers extend over the black light-absorption layers, thereby forming overlapped portions. Gaps are provided between the phosphor layers and over the black light-absorption layers, thereby forming light-absorption sections on which no phosphor layer is provided.
公开/授权文献
- US5840190A Surface modified biocompatible membranes 公开/授权日:1998-11-24
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