Browse Prior Art Database

Gas Panel Cell Construction by Electrostatic Method

IP.com Disclosure Number: IPCOM000088069D
Original Publication Date: 1977-Apr-01
Included in the Prior Art Database: 2005-Mar-04
Document File: 1 page(s) / 12K

Publishing Venue

IBM

Related People

Anderson, LC: AUTHOR

Abstract

One of the problems involved in the fabrication of conventional gaseous discharge display devices is that of spacing, since these devices operate at pressures substantially below atmospheric pressure and a uniform gap distance must be maintained. This article describes an alternative method for fabricating such devices, which eliminates the requirement for spacer technology, and producing a groove-type of gaseous-discharge display device.

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Gas Panel Cell Construction by Electrostatic Method

One of the problems involved in the fabrication of conventional gaseous discharge display devices is that of spacing, since these devices operate at pressures substantially below atmospheric pressure and a uniform gap distance must be maintained. This article describes an alternative method for fabricating such devices, which eliminates the requirement for spacer technology, and producing a groove-type of gaseous-discharge display device.

The preferred embodiment utilizes drive lines interspersed by shield lines which prevent migration of a charge during a firing or sustain operation. For example, see U. S. Patent 3,666,981. Initially, conductors are formed on glass plates or substrates and shield lines, maintained at a reference potential, are interspersed between the conductors to improve the cell-to-cell isolation. A potential of one magnitude such as +200 volts is applied to the drive lines, and a reference potential such as -200 volts is applied to the shield lines. A dielectric is then applied over the conductors by a high voltage spray, for example, a 5.5 Kv spray gun. Due to the electrostatic attraction of the conductors resulting from the polarity of the respective drive and shield lines, the dielectric thickness is lower over the drive lines and higher over the shield lines to produce a corrugated structure across the entire surface of the glass substrates.

When the identical procedure is performed on...