公开(公告)号：US06624557B2

公开(公告)日：2003-09-23

申请号：US09770674

申请日：2001-01-29

Applicant: Do-Hun Pyen ,  Jong-Heon Kim ,  Jung-In Yoo

Inventor： Do-Hun Pyen ,  Jong-Heon Kim ,  Jung-In Yoo

IPC: H01J2980

CPC classification number: H01J29/07 ,  H01J2229/075

Abstract: Cathode-ray tubes with a shadow mask effective in minimizing the moiré effect are disclosed. The shadow mask has a plurality of apertures allowing electron beams to pass through, where a vertical pitch Py between each of the neighboring apertures along a minor axis of the shadow mask and a scanning pitch Ps between each of the scan lines of the electron beams satisfy the following relations hip: ((2n+1)/4)−0.1≦Ps/Py≦((2n+1)/4)+0.1 where n is an integer not less than three.

Abstract translation: 公开了具有有效地使莫尔效应最小化的荫罩的阴极射线管。 荫罩具有允许电子束通过的多个孔，其中沿着荫罩的短轴的每个相邻孔之间的垂直间距Py和电子束的每个扫描线之间的扫描间距Ps满足 以下关系髋关节：其中n是不小于3的整数。