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Sharing a Single TV with Different Views for Two or More Viewers

July 20th, 2010 · 6 Comments · General 3D News

Not long ago in the Forum there was a discussion about using different glasses in order for one of the viewers to see 3D and the other to see just 2D content. And although this is still not possible, it seems that Sony might be on the right track in providing such capabilities in near future, or at least the latest patents that the company has filed regarding the use of a single display with multiple shutter glasses and different image for the viewers can be used to help add such functionality. The two patents filed by Sony are for the principle of the new shutter glasses that will be able to share different images, and also the audio between two or more viewers on the same TV and for the methodology being used to utilize the sharing with these new shutter glasses.

The basic idea that Sony has is to use the even frames to display one type of image with 50/60Hz and the odd frames to display another type of image again with 50/60Hz and thus providing two different viewers two different pictures on a single TV (not two different 3D views, but two different 2D ones). And with the increase of response rate and the shutter speed of shutter glasses this can be further expanded to support a third viewer watching a completely different thing than the other two and probably this might be possible with even more than three. But don’t think that this is so easy to make and implement, while the viewers get a completely problem free and bright and contrasting image, there are a lot of possible issues, some of which are present in the current generation of hardware using shutter glasses. Still the possibility to play a game while somebody is watching a movie on the same TV sounds quite nice and usable, what do you think about the concept of TV sharing?

View the Stereoscopic Screen Sharing Method and Apparatus Patent
3D Shutter Glasses with Mode Switching Based on Orientation to Display Device

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6 responses so far ↓

  • 1 Costa // Jul 20, 2010 at 14:43

    I think this idea is quite interesting. Can be used for multiplayer gaming.
    I had this idea some time ago and made some glasses for my Zalman 3D polarized display. One pair of glasses only with one polarization, the other pair with the other polarization. It works but it’s still not usable because of the ghsoting. It’s basically useless, especially for multiplayer gaming, unless we get rid of the ghosting.

  • 2 Kent // Jul 20, 2010 at 18:53

    What about the sound ? Both viewers would have to wear headsets or the combination of audio from separate videos/games is going to sound like a garbled mess. Personally I don’t see this kind of technology taking off.. at all..

  • 3 Bloody // Jul 20, 2010 at 20:35

    It seems the glasses will also have headphones built-in in order to sync up different sound to each viewer, depending on the content being watched…

  • 4 mArkzism // Jul 21, 2010 at 09:16

    Lol I kinda thought of this and put it in my blog on June 14th and rewrote it (because of my bad English) on July 5th.

  • 5 Shawn Veltman // Jul 22, 2010 at 22:52

    This is an interesting idea, though Dumont beat them to it by 56 years or so, give or take.

    There was an article in popular mechanics in the March, 1954 edition. More about the TV here: http://www.earlytelevision.org/dumont_duoscopic.html

  • 6 Garth // Oct 15, 2010 at 03:53

    If anybody revisits this post, you might want to refer to some research I published:

    Garth B. D. Shoemaker and Kori M. Inkpen
    Single Display Privacyware: Augmenting Public Displays With Private Information
    In Proceedings of CHI 2001

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