Browse Prior Art Database

Color CRT Display Automatic Degauss Swivel Base

IP.com Disclosure Number: IPCOM000036701D
Original Publication Date: 1989-Oct-01
Included in the Prior Art Database: 2005-Jan-29
Document File: 2 page(s) / 38K

Publishing Venue

IBM

Related People

Leise, LE: AUTHOR [+2]

Abstract

All color CRT displays that use swivel during normal operation exhibit some loss of purity after the CRT has been rotated. One typical passive countermeasure is to incorporate a manual degaussing switch into the display for operator use.

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Color CRT Display Automatic Degauss Swivel Base

All color CRT displays that use swivel during normal operation exhibit some loss of purity after the CRT has been rotated. One typical passive countermeasure is to incorporate a manual degaussing switch into the display for operator use.

An improvement of this idea is to incorporate a switch mechanism into the swivel base of the display. This switch mechanism would automatically initiate degaussing when the display is rotated.

The swivel base would be constructed so that when positioned normal to the user, the display could be rotated +- 45 degrees without automatic degaussing taking place. A rotation beyond 45 degrees would activate the degaussing mechanism. The swivel base would be segmented into four quadrants, with each quadrant containing a mechanism to activate automatic degaussing.

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