| Original document(13 pages) Authorized document(13 pages) 中文版 |
The invention relates to a method of pulling the side margin of the shadow mask with the drawing work; the shadow mask board 1 being used in color kinescope is formed by Invar steel type iron nickel alloy. The shadow mask board 1 is pulled into the side margin 22 in the pulling process. The side 16 of the side margin 22 is tightly pressed in skidproof style, which can the side margin22 being plastic deformation in the pulling process; as a result, the reproducibility of the shadow mask board 1 shape is enhanced. |
Application Number
申请号 |
86107752 |
Application Date
申请日 |
1986.11.08 |
| Title 名称 |
Method of drape drawing shadow mask for color display tube, shadow mask manufactured by said method, and color display tube comprising such shadow mask |
Publication Number
公开号 |
1018469 |
Publication Date
公开日 |
1988.05.18 |
| Approval Pub. Date |
1991.01.16 |
Granted Pub. Date |
1991.01.16 |
| International Classification 分类号 |
H01J9/06;H01J29/07 |
Applicant(s) Name
申请人 |
N.V. Philips' Gloeilampenfabrieken |
| Address 地址 |
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| Inventor(s) Name 发明人 |
Van De Kerkhof Marianus Antonius Gerardus;Van Den Berg Adrianus Henricus Maria |
| Attorney & Agent 代理人 |
WU ZENGYONG |
| More information 更 多 信 息 |
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