Browse Prior Art Database

Conductive Paint Display Radiation Shield

IP.com Disclosure Number: IPCOM000039733D
Original Publication Date: 1987-Jul-01
Included in the Prior Art Database: 2005-Feb-01
Document File: 2 page(s) / 70K

Publishing Venue

IBM

Related People

Lynch, RC: AUTHOR [+3]

Abstract

A remote device such as a vacuum fluorescent display unit is grounded to a master control unit by providing a common ground through a cable interconnecting the vacuum fluorescent display unit to the master controller and spraying the vacuum fluorescent display unit with a conductive paint. The drawing shows a schematic for a vacuum fluorescent display unit which is connected via a shielded cable assembly 16 to the master controller (not shown). The master controller (not shown) has a common ground which grounds the master controller and the remote vacuum fluorescent display unit. Brackets 10 are welded to safety screen 12. The plate assembly 18 is ultrasonically staked to plastic rear cover 14. The entire inside surface of the cover assembly is then coated with nickel urethane paint.

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Conductive Paint Display Radiation Shield

A remote device such as a vacuum fluorescent display unit is grounded to a master control unit by providing a common ground through a cable interconnecting the vacuum fluorescent display unit to the master controller and spraying the vacuum fluorescent display unit with a conductive paint. The drawing shows a schematic for a vacuum fluorescent display unit which is connected via a shielded cable assembly 16 to the master controller (not shown). The master controller (not shown) has a common ground which grounds the master controller and the remote vacuum fluorescent display unit. Brackets 10 are welded to safety screen 12. The plate assembly 18 is ultrasonically staked to plastic rear cover 14. The entire inside surface of the cover assembly is then coated with nickel urethane paint. The glass assembly 20 is mounted into the rear cover, and the connector receptacle 22 is screwed to the brackets 10. Unique to this assembly is the method by which the conductive paint is grounded. The coating is simultaneously sprayed onto all the plastic surfaces and also onto the metal safety screen. The overlap of the coating from the plastic surfaces to the metal screen effectively commons the coating to earth ground.

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