VMD-L Mailing List

From: Warren DeLano (warren_at_delsci.com)
Date: Wed Aug 16 2006 - 15:11:39 CDT

Jeff,

I don't hold out much hope of frame-sequential stereo on LCDs. Instead, my bet is on switchable auto-stereoscopic LCD -- but not until they hit a resolution of ~1600x1200 and a price point around ~$1.5k.

However, one current example "state of the art" product is:

<http://www.dti3d.com/component/page,shop.product_details/category_id,1/flypage,shop.flypage/product_id,7/option,com_virtuemart/Itemid,1/>

which can optionally convert a frame-sequential input signal, but will set you back about $4k

Cheers,
Warren 

--
Warren L. DeLano, Ph.D.                     
Principal Scientist
. DeLano Scientific LLC  
. 400 Oyster Point Blvd., Suite 213           
. South San Francisco, CA 94080 USA   
. Biz:(650)-872-0942  Tech:(650)-872-0834     
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. mailto:warren_at_delsci.com      
 
> -----Original Message-----
> From: owner-vmd-l_at_ks.uiuc.edu 
> [mailto:owner-vmd-l_at_ks.uiuc.edu] On Behalf Of John Stone
> Sent: Wednesday, August 16, 2006 12:32 PM
> To: Jeff Hoch
> Cc: vmd-l_at_ks.uiuc.edu
> Subject: Re: vmd-l: stereo on LCD display = pipe dream?
> 
> 
> Hi Jeff,
>   While the response time of LCDs has improved markedly, 
> another barrier to their use with commonly available stereo 
> glasses has been the fact that both the LCD panels and both 
> active LCD shutter glasses and passive polarized glasses rely 
> on the use of polarization of light as the means of 
> modulating brightness and filtering left/right eye images.  
> As a result, they usually conflict and don't work together 
> without the addition of extra optics (see below).
> 
> There a number of autostereoscopic displays that use the 
> combination of a high-resolution LCD panel with a parallax 
> barrier to create a stereo image when the observer's head is 
> positioned in the correct viewing orientation.  I've also 
> seen stereo displays using two LCD panels in combination with 
> phase plates, mirrors, and beam splitters to create a high 
> resolution stereo image with passive polarized glasses.
> 
> If there's a way of using a standard off-the-shelf LCD panel 
> to create stereo-in-a-window without any of the auxilliary 
> optics, just using the common active LCD shutter glasses, or 
> passive polarized glasses, I haven't heard about it yet.
> 
>   John Stone
>   vmd_at_ks.uiuc.edu
> 
> On Wed, Aug 16, 2006 at 02:46:04PM -0400, Jeff Hoch wrote:
> > Hi Gang:
> > 
> > This is a topic that has been discussed previously, with 
> the consensus 
> > that LCD displays are not suitable for displaying stereo 
> (other than 
> > side-by-side).
> > Given the advent of fast response LCDs (2 ms or better), is 
> it time to 
> > revisit this issue?
> > 
> > Thanks,
> > 
> > Jeff Hoch
> 
> --
> NIH Resource for Macromolecular Modeling and Bioinformatics 
> Beckman Institute for Advanced Science and Technology 
> University of Illinois, 405 N. Mathews Ave, Urbana, IL 61801
> Email: johns_at_ks.uiuc.edu                 Phone: 217-244-3349
>   WWW: http://www.ks.uiuc.edu/~johns/      Fax: 217-244-6078
> 
> 
> 
>