发明名称 |
Method for prolonging CRT screen life by reduced phosphor burning |
摘要 |
Disclosed is a method for reducing the burning of the phosphor of cathode ray tube (CRT) monitor screens used in television systems where necessary textual information is constantly displayed over a video image on the CRT screen. The method involves periodically changing the location of the textual information overlaid onto the video image without altering the information itself so that the information is continuously available, but does not remain in the same place for a prolonged time period which might otherwise burn into the phosphor of the CRT screen. The textual information may be moved as frequently as once per hour to as seldom as once every week or more; and may be move as little as one pixel to as much as several character positions. It is preferred that timing and location of movement of the textual information not be annoying to the user, and that the textual information be positioned discretely on the CRT screen in order to avoid blockage of the underlying video image as much as possible.
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申请公布号 |
US2001035874(A1) |
申请公布日期 |
2001.11.01 |
申请号 |
US20010844046 |
申请日期 |
2001.04.26 |
申请人 |
PELCO |
发明人 |
HAMILTON WILLIAM ERIC;GRIGORIAN SAMUEL NIKOLAY |
分类号 |
G09G1/16;H04N5/68;(IPC1-7):G09G5/00 |
主分类号 |
G09G1/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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