公开(公告)号：US4746970A

公开(公告)日：1988-05-24

申请号：US819154

申请日：1986-01-14

申请人： Hiromu Hosokawa ,  Ryosuke Ashiya ,  Koichi Momoi

发明人： Hiromu Hosokawa ,  Ryosuke Ashiya ,  Koichi Momoi

IPC分类号： B65G47/57 ,  G09G1/00 ,  G09G1/04 ,  G09G1/28 ,  G09G5/02 ,  H04N9/73 ,  H04N17/04 ,  H04N9/12 ,  H04N9/16 ,  H04N17/02

CPC分类号： B65G47/57 ,  H04N17/04 ,  H04N9/73

摘要： A dynamic white uniformity correcting apparatus for a three-color display for displaying a color picture in response to three primary color signals and includes a cathode ray tube which has means for emitting a plurality of electron beams and a display screen divided into a plurality of incremental areas and the display also includes deflection means for scanning the plurality of electron beams across the display screen to produce the color picture in response to three primary color signals and wherein a correction signal generating means generates at least two correction signals for each incremental area of the display screen and the correction signal generating means includes a correction signal storage means for storing the correction signals. At least two amplitude modulators are provided for adjusting the level of different ones of the three primary color signals as a function of the correction signals and means for reading out the correction signals from the correction signal storage means as the plurality of electron beams are scanned across the incremental areas of the display screen so as to supply read out correction signals to the amplitude modulators to adjust the levels of the primary color signals to correct the white uniformity of the color picture.

摘要翻译： 一种用于三色显示器的动态白均匀性校正装置，用于响应于三原色信号显示彩色图像，并且包括具有发射多个电子束的装置的阴极射线管和分为多个增量的显示屏幕 区域和显示器还包括用于在显示屏幕上扫描多个电子束以产生响应于三原色信号的彩色图像的偏转装置，并且其中校正信号产生装置为每个增量区域生成至少两个校正信号 显示屏和校正信号发生装置包括用于存储校正信号的校正信号存储装置。 提供至少两个幅度调制器用于调整作为校正信号的函数的三个原色信号中的不同的信号的电平的水平，以及当多个电子束被扫描时从校正信号存储装置读出校正信号的装置 显示屏幕的增量区域，以向幅度调制器提供读出的校正信号，以调整原色信号的电平以校正彩色图像的白色均匀性。