Re: NTLK screen dim & hum

From: Alex Karahalios (
Date: Sat Sep 09 2000 - 13:18:45 CDT

on 9/9/00 12:25 AM, John Mark Davis at wrote:

> Is the back lite a part of the screen or some completely different unit
> under the screen?
It's a separate flexible electroluminescent (EL) sheet under the screen. The
sheet is made of a phosphor luminous layer sandwiched between two electrode
plates (one is transparent). The plates are driven at about 400-800hz at
100-200V. EL sheets are available in a variety of colors The light output
intensity and sheet half life is usually dependent on the color.

A good website to learn more about them is at

Alex Karahalios

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