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1. 发明授权

EP0963121B1 IMAGE DISPLAY 有权
标题翻译：图像显示
公开(公告)号：EP0963121B1
公开(公告)日：2006-03-15
申请号：EP98959223.3
申请日：1998-12-17
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： HAMADA, Kiyoshi , OHSUGI, Michio , TANIGUCHI, Hironari
IPC分类号： H04N9/12 , H04N9/24
CPC分类号： H04N9/28
摘要： An image display having electrodes for controlling beams, disposed between a group of cathode wires (2) and a screen (8) with a phosphor layer, comprises a beam start offset signal generating circuit (31) for generating a signal for oscillating a predetermined beam horizontally, a PIN photodiode (33) for measuring the quantity of light emitted from the phosphor layer because of the beam, a comparator (35) for generating a beam landing position error signal from the measured quantity of light, an integrating circuit (36) for generating a beam position control signal according to the beam landing position error signal, and a horizontal deflecting electrode driving circuit (39) for driving a horizontal deflecting electrode (6) according to signals such as the beam position control signal. There is little difference between the phosphor stripe on the screen and the position of the beam spot, and deterioration of the quality of image including the color misregistration hardly occurs.
摘要翻译：一种具有用于控制光束的电极的图像显示器，该图像显示器位于一组阴极线（2）和具有荧光粉层的屏幕（8）之间，包括：光束起始偏移信号产生电路（31），用于产生用于使预定光束用于测量由于光束而从荧光层发射的光量的PIN光电二极管（33），根据测得的光量产生光束着屏位置误差信号的比较器（35），积分电路（36）用于根据光束着屏位置误差信号产生光束位置控制信号;以及根据诸如光束位置控制信号的信号驱动水平偏转电极（6）的水平偏转电极驱动电路（39）。屏幕上的荧光条与光斑的位置几乎没有区别，并且几乎不发生包括色偏的图像质量的恶化。

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