Re: question on LED-backlit displays
Re: question on LED-backlit displays
- Subject: Re: question on LED-backlit displays
- From: Marco Ugolini <email@hidden>
- Date: Sat, 16 Jun 2007 18:37:41 -0700
- Thread-topic: question on LED-backlit displays
In a message dated 6/16/07 5:55 PM, Robin Myers wrote:
> Although single LED devices containing red, green and blue individual
> dies have been around for many years, they are not as bright as the
> white LEDs, so they are not usually used for backlights. High
> brightness LEDs are needed because the LCD they are backlighting
> greatly cuts the backlight intensity down before it gets out for us
> to view.
>
> Backlights using individual high brightness red, green and blue LEDs
> are possible, but they present a very challenging task to the optical
> designer to get the light to mix evenly in the narrow confines of a
> display.
So, "white" LEDs offer no advantages over fluorescent backlights as far as
controlling the color temperature of the light source is concerned, do they?
I'm disappointed, because what I have kept hearing so far is how we were
going to be able to control the color temperature of the light source once
we have LCD displays with LED backlights. It appears that the story may not
be quite as simple as that.
Marco Ugolini
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