公开(公告)号：US5534746A

公开(公告)日：1996-07-09

申请号：US467119

申请日：1995-06-06

申请人： Bruce G. Marks ,  Theodore F. Simpson

发明人： Bruce G. Marks ,  Theodore F. Simpson

IPC分类号： H01J29/07 ,  H01J29/32 ,  H01J29/86 ,  H01J31/20 ,  H04N9/16

CPC分类号： H01J29/076

摘要： An improved color picture tube includes a shadow mask and a dot screen, wherein the mask is rectangular and has two horizontal long sides and two vertical short sides. The long sides parallel a central major axis of the mask and the short sides parallel a central minor axis of the mask. The mask includes an array of apertures arranged in vertical columns and horizontal rows. Apertures in one row are in different columns than are the apertures in adjacent rows. The vertical spacing between apertures in the same column is the vertical pitch of the apertures and the horizontal spacing between apertures in the same row is the horizontal pitch of the apertures. The improvement includes the horizontal pitch of the apertures increasing from the minor axis to the short sides of the mask and decreasing from the major axis to the long sides of the mask. Also, along the major axis, the vertical pitch of the mask decreases from the center to the short sides of the mask and, adjacent the long sides of the mask, it increases from the minor axis to the corners of the mask.

摘要翻译： 一种改进的彩色显象管包括荫罩和点阵屏幕，其中掩模是矩形的并且具有两个水平长边和两个垂直短边。 长边平行于掩模的中心长轴并且短边平行于掩模的中心短轴。 掩模包括排列成垂直列和水平行的孔阵列。 一排中的孔与相邻行中的孔相比在不同的列中。 同一列中的孔之间的垂直间距是孔的垂直间距，同一行中的孔之间的水平间距是孔的水平间距。 该改进包括孔的水平间距从荫罩的短轴增加到短边，并从掩模的长轴延伸到长边。 而且，沿着长轴，掩模的垂直间距从掩模的中心到短边减小，并且在掩模的长边附近，它从短轴增加到掩模的角部。