[opendtv] Re: Philips ClearLCD technique for motion sharpness
- From: Craig Birkmaier <craig@xxxxxxxxx>
- To: opendtv@xxxxxxxxxxxxx
- Date: Wed, 19 Jan 2005 10:08:44 -0500
At 6:00 PM -0500 1/18/05, Manfredi, Albert E wrote:
>Here's an interesting innovation for LCD backlights,
>to help with motion portrayal and to increase
>the contrast potential of LCD displays. Same
>perceived max brightness as normal LCDs, blacker
>blacks, and sharper moving objects.
>
>It seems to me that this technique might
>reintroduce the flicker phenomenon of movie
>projectors or CRTs, but maybe this is mitigated by
>the dynamically changing duty cycle? (Not that
>sample and hold is the correct way to display
>sampled motion. But there's something to be said
>for complete lack of flicker.)
>
>I would think that LED backlights would work even more
>precisely than fluorescents in such a scheme, since
>LEDs can be controlled very accurately with pulse
>width modulation of power.
>
>Bert
Or you could just move to a higher frame rate at the source...
Regards
Craig
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