Re: [NTLK] High Quality replacement MP2x00 white backlights

From: Bruce Guthrie (signwatcher_at_i-star.com)
Date: Mon Feb 14 2005 - 07:48:46 PST


kay what about the 130?
----- Original Message -----
From: "Calvin Grier" <cgrier_at_ix.netcom.com>
To: <newtontalk_at_newtontalk.net>
Sent: Monday, February 14, 2005 10:40 AM
Subject: Re: [NTLK] High Quality replacement MP2x00 white backlights

> James,
>
> I share your desire to have a brighter backlight and that's one of the
> reasons I embarked on the (long) road to engineer a replacement to the
> Apple
> original EL backlight. David PCB-Man Humphreys tried it first, but he gave
> up on his quest to engineer an LED backlight. It could still be done,
> however, the cost to do it would be prohibitive.
>
> I contracted with an EL backlight maker that had "better" materials than
> Apple did in 1996. I did some comparisons and decided that most users
> would
> be able to source an (original or aftermarket) green backlight from
> various
> sources for an extended period of time. In order to sell something that
> people would want I'd need something unique. I chose to make white. A
> brighter green EL backlight can be made today - but most people's eyes
> can't
> distiguish a 10 or 15% improvement in brightness in day to day use. A 2x
> or
> 4x improvement would be possible only by changing to LED or CCFL
> backlights.
>
> I've sold close to 100 of the white backlights and I have not had one of
> them returned. Most upgraders like the improved black on white appearance
> of
> the display. I'd be willing to make a production run for an order of
> improved green displays, but I'd need advance orders for at least 50
> backlights.
>
> --Calvin
>

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