Re: question on LED-backlit displays
Re: question on LED-backlit displays
- Subject: Re: question on LED-backlit displays
- From: Graeme Gill <email@hidden>
- Date: Mon, 18 Jun 2007 11:54:56 +1000
Roger Breton wrote:
Please excuse my ignorance, Graeme, but I thought only CRTs used phosphors.
Yes, but the point of wide gamut displays is that they are supposed
to be wider gamut than phosphor displays, and the phosphor in CRTs
is chosen to to resemble R, G & B peaks as much as can be
achieved within the bounds of available phosphors, cost and
efficiency. A CRT uses an electron source to excite the
phosphor allowing considerable flexibility in the phosphor mix,
while a white LED is just a blue monochromatic source (not even U.V.),
and I would imagine this imposes constraints on the choice of phosphor for
achieving a white balance and reasonable efficiency. Examining the
spectra of a CRT and a white LED makes the difference plain.
Graeme GIll.
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Colorsync-users mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden