公开(公告)号：US5414330A

公开(公告)日：1995-05-09

申请号：US20567

申请日：1993-02-22

申请人： Susumu Tsujihara ,  Mitsuo Isobe ,  Hiroyosi Shimosaka ,  Hiroshi Taniguchi

发明人： Susumu Tsujihara ,  Mitsuo Isobe ,  Hiroyosi Shimosaka ,  Hiroshi Taniguchi

IPC分类号： H04N3/22 ,  H04N3/233 ,  H04N9/24 ,  H04N9/28 ,  G09G1/04 ,  H01J29/10 ,  H01J31/26

CPC分类号： H04N9/24 ,  H04N3/22 ,  H04N3/2335 ,  H04N9/28

摘要： A cathode ray tube control apparatus includes phosphor display screen, three electron guns for emitting R, G, B electron beams to the display screen, a shadow mask placed between the electron guns and the display screen, and index phosphors deposited on the shadow mask and having at least two line elements diagonal to a horizontal scanning direction of the electron beam for generating a signal according to the electron beam scan. Further provided are detector for detecting beam crossing points over the index phosphor, and correction circuit for correcting the deflection of the electron beam based on the detected beam crossing points.

摘要翻译： 阴极射线管控制装置包括荧光显示屏，用于向显示屏发射R，G，B电子束的三个电子枪，放置在电子枪和显示屏之间的荫罩，以及沉积在荫罩上的折射荧光体， 具有与电子束的水平扫描方向对角的至少两个线元件，用于根据电子束扫描产生信号。 还提供了用于检测指示荧光体上的光束交叉点的检测器，以及用于基于检测到的光束交叉点校正电子束的偏转的校正电路。