raregasisthenfilledbetweeneachsubstrate.Whenahighvoltageisappliedtotheseelectrodes,the gasisactivatedresultingintheradiationofultravioletlight,similartotheoperationinfluorescentlamps. Theseultravioletraysthenactivatephosphorthathasbeencoatedontheinsideoftheglasssubstrate, ...