Image display device,申请号US20040786011-传众专利搜索

Image display device

申请公布号：US7071608(B2)

申请号：US20040786011

申请日期：2004.02.26

申请公布日期：2006.07.04

申请人：

HITACHI DISPLAYS, LTD.

发明人：NAKAMURA TOMOKI;MATSUDATE NORIHARU

分类号：H01J31/12;H01J63/04;H01J1/62;H01J29/46;H01J29/48

主分类号：H01J31/12

摘要：In an image display device, assuming the distance between electron sources and control electrodes is Lkg, the distance between the control electrodes and acceleration electrodes is L 12 , the thickness of opening holes formed in the control electrodes is Tgl and the short diameter of the opening holes formed in the control electrodes is FGI, the acceleration electrodes satisfy the relationship (Lkg+Tgl+L 12 /2)/FGI>=0.25; assuming the thickness of the opening holes formed in the acceleration electrodes is Tg 2 and the short diameter of the opening holes formed in the acceleration electrodes is FG 2 , the acceleration electrodes satisfy the relationship Tg 2 min<=Tg 2 <=Tg 2 max and the relationship Tg 2 min=2.98FG 2 -0.04; assuming FG 2 <0.109, the acceleration electrodes satisfy the relationship Tg 2 max=0.02/(0.115-FG 2 )-0.06; and assuming FG 2 >=0.109, the acceleration electrodes satisfy the relationship Tg 2 max=0.03/(FG 2 -0.1)+0.045. Due to such a constitution, light emission control can be easily performed and self-alignment of the electron sources and the control electrodes can be realized.