TI-H: Re: LZ: Backlighting
[Prev][Next][Index][Thread]
>>No. Remember the experiments in junior high science class when you use
a
>>prism to break up a white light into a spectrum? This proves that
white
>>light is made up of all colors mixed together. LEDs can only emit one
>>frequency at a time.
>
>remember sitting too close to the TV and seeing just red green and blue
>dots, and yet when you pulled back the screen was white...The cathoid
ray
>can only light up certin frequencies at a time too, the color seen is
>dependant on the mix of colors.
Yeah, but the piexls on a TV are so small that the eye can not
distinguish individual ones. The colors blend because the areas with
individual colors are too small to be seen individually. That's why you
don't see teh promary colors untill you get really close. With leds you
could distinguish all three, so they wouldn't blend together and form
white. If you had them bounted a couple inches above the display so that
the display reflected all three, you'd still se the reflection as three
LEDs. Besides, a TV's pixels aren't monochromatic, like a LED. You may
see red, but it's really a bunch of different reds along with some other
undesired colors mixed in. LEDs always release one and only one
frequency at a time (or 99.999 percent all the same frequency)
Jason "Thursday" Wenger
jwenger@juno.com
Illegitimi no carborundum
References: