Invention Grant
- Patent Title: Shadow mask, plate member therefor and method of manufacturing shadow mask
- Patent Title (中): 阴影面具，板材及其制造方法
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Application No.: US09655191Application Date: 2000-09-05
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Publication No.: US06722938B1Publication Date: 2004-04-20
- Inventor: Takayasu Komatsu , Hiromitsu Ochiai , Akira Makita , Hirofumi Hideshima , Takuya Ogio , Toshimu Watanabe
- Applicant: Takayasu Komatsu , Hiromitsu Ochiai , Akira Makita , Hirofumi Hideshima , Takuya Ogio , Toshimu Watanabe
- Priority: JP11-251950 19990906
- Main IPC: H01J912
- IPC: H01J912
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.
Information query
