Browse Prior Art Database

Liquid Cell Electrostatic Storage and Display Tube

IP.com Disclosure Number: IPCOM000095620D
Original Publication Date: 1964-Mar-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 30K

Publishing Venue

IBM

Related People

Wohl, RJ: AUTHOR

Abstract

The electrostatic writing and printing device, described in U. S. Patent No. 3, 109, 062, uses a dry toner developer. This is replaced by a liquid toner solution in the above tube. The transparent glass view end is coated with a transparent conductor.

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Liquid Cell Electrostatic Storage and Display Tube

The electrostatic writing and printing device, described in U. S. Patent No. 3, 109, 062, uses a dry toner developer. This is replaced by a liquid toner solution in the above tube. The transparent glass view end is coated with a transparent conductor.

Formed on the thin MYLAR* membrane by means of the write gun is an electron image. This induces a latent image on the opposite side of the membrane, adjacent the liquid toner. A potential is applied to the transparent conductor of an appropriate polarity to enhance the electrostatic image and accelerate drift of the colloidal toner particles to the membrane.

Reversal of polarity of the potential applied to the conductor aids erasure of the image. This is accomplished by flooding the screen with electrons of delta >
1. *Trademark of E.I. du Pont de Nemours & Co.

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