Mask frame assembly having thermal correction unit and color CRT using the same
US7005786B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2002 |
| Grant date | Feb 28, 2006 |
| Priority date | — |
| Expiry date | Apr 5, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2229/0722
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A color CRT includes a panel having a fluorescent film formed on an inner surface, a tension mask frame assembly installed in the panel and including a frame including a pair of first and second support members separated a predetermined distance from each other, and first and second elastic members installed between the first and second support members to support the first and second support members and having support portions fixed at the first and second support members and a connection portion to connect the support portions, a mask having electron beam passing holes formed therein and installed such that a tension is applied to the first and second support members, and a correction unit installed at the first and second support members or support portions between the connection portion and the mask, to correct a mis-landing of an electron beam due to thermal expansion of the mask and the frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.