公开(公告)号：US06722938B1

公开(公告)日：2004-04-20

申请号：US09655191

申请日：2000-09-05

Applicant: Takayasu Komatsu ,  Hiromitsu Ochiai ,  Akira Makita ,  Hirofumi Hideshima ,  Takuya Ogio ,  Toshimu Watanabe

Inventor： Takayasu Komatsu ,  Hiromitsu Ochiai ,  Akira Makita ,  Hirofumi Hideshima ,  Takuya Ogio ,  Toshimu Watanabe

IPC: H01J912

CPC classification number: H01J9/142 ,  H01J2229/0755 ,  H01J2229/0766 ,  Y10T225/12

Abstract: A shadow mask is formed from a plate member comprising an outer frame portion, a body portion of a shadow mask having an outer peripheral line formed through an etching process and a plurality of connection portions through which the body portion of the shadow mask is supported by the outer frame portion. The shadow mask is formed from the plate member by removing the outer frame portion from the body portion of the shadow mask. In this process, a break portion is formed to the shadow mask by removing the outer frame portion so as to be recessed inward from the outer peripheral line of the shadow mask.

Abstract translation: 荫罩由包括外框部分，阴影掩模的主体部分，通过蚀刻工艺形成的外周线和多个连接部分构成的荫罩形成，荫罩的主体部分通过该多个连接部分被 外框部分。 通过从荫罩的主体部分移除外框架部分，由板构件形成荫罩。 在该过程中，通过从外框部分移除以从荫罩的外周线向内凹入的方式，对荫罩形成断开部分。