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    • 24. 发明申请
    • Color pixel element cathode ray tube
    • 彩色像素元件阴极射线管
    • US20040222730A1
    • 2004-11-11
    • US10352412
    • 2003-01-28
    • Thomas A. Skupien
    • H01J029/50
    • H01J31/201
    • Color CRTs, used in large display screens, have a plurality of three color electron beams that are strongly focused so that they crossover and become divergent in both the X and Y axes of the CRT's face. The strength of the focusing determines the size of the illuminated area on the face of the CRT. A shadow mask, aperture grill, or slotted mask and the red, green and blue phosphor dots or stripes are located at predetermined positions such that the red electron beams only hit the red phosphors, the green electron beams only hit the green phosphors, and the blue electron beams only hit the blue phosphors. No raster scanning with the electron beams are required.
    • 用于大型显示​​屏幕的彩色CRT具有强烈聚焦的多个三色电子束,使得它们在CRT的表面的X轴和Y轴上交叉并变得发散。 聚焦的强度决定了CRT面部照明区域的大小。 荫罩,孔格栅或开槽掩模以及红,绿和蓝荧光体点或条纹位于预定位置,使得红色电子束仅击中红色荧光体,绿色电子束仅撞击绿色荧光体,并且 蓝色电子束只撞到蓝色荧光粉。 不需要使用电子束的光栅扫描。
    • 29. 发明授权
    • Beam index color television display device
    • 光束指示彩色电视显示设备
    • US3732359A
    • 1973-05-08
    • US3732359D
    • 1972-04-19
    • BELL TELEPHONE LABOR INC
    • CHEN Y
    • H01J31/20H04N9/24
    • H04N9/24H01J31/20H01J31/201H01J2231/121
    • The beam index concept for color television display tubes has been known for some time, and although this color display approach is fundamentally more attractive than the commercially favored three-gun shadow mask tube, techniques for producing the indexing signal have been inadequate. According to the invention, index signals in a single-gun tube with horizontal phosphor stripes, operating in a line (color)-sequential mode, are generated by UV phosphor bars spaced uniformly along each color stripe but with different spacings for each color. As the beam scans a stripe, an optical signal is generated with a frequency corresponding to the periodicity of the phosphor index bars. The optical signal is detected with a UV detector. The amplitude of each frequency will indicate the beam size and vertical position. The index signals are fed to a signal processor which, by simple filtering, will generate error correction signals which are in turn fed to the deflection circuit to correct the beam position. The use of the optical index signal ensures isolation of the beam index signal from the video.
    • 彩色电视显示管的光束指标概念已经知道了一段时间,尽管这种彩色显示方法在基本上比商业上有利的三枪荫罩管更有吸引力,但是用于产生分度信号的技术已经不足够了。 根据本发明,在具有水平荧光条纹的单枪管中的索引信号以线(彩色)后序模式工作,由沿着每个颜色条带均匀间隔但每个颜色具有不同间隔的UV荧光棒产生。 当光束扫描条纹时,产生具有对应于荧光体指数条的周期性的频率的光信号。 用紫外检测器检测光信号。 每个频率的幅度将指示光束尺寸和垂直位置。 索引信号被馈送到信号处理器,信号处理器通过简单滤波将产生误差校正信号,该信号又被馈送到偏转电路以校正光束位置。 使用光学索引信号确保光束索引信号与视频的隔离。