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AMBIENT LIGHT VIDEO DISPLAY

IP.com Disclosure Number: IPCOM000023030D
Original Publication Date: 1976-Jul-31
Included in the Prior Art Database: 2004-Mar-27

Publishing Venue

Xerox Disclosure Journal

Abstract

The ambient light video display 10 comprises a video tube with a multi~layered Lace plate in place of the conven~ tional phosphor coated glass. The face plate comprises a thin conducting layer 1, a white low conductivity charge capture layer 2, an electri~ cal fie1d~-sensitive layer 3, and a transparent electrode 4 such as NESA glass or other suitable transparent conduc~ tive layer on a transparent substrate, ~Then a beam of sufficiently energetic electrons strikes the thin conducting layer 1, most of the electrons will penetrate a considerable distance into the low conductivity layer 2, This produces an electrical field across the electrical field-~sensitive layer 3 which is proportional to the charge density and its relative distance from thin conducting layer 1.