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Usage of DLP LINK 3D protocol for commercial products

Other Parts Discussed in Thread: TPS65835

Hi there,

I wanted to know the legality of using the DLP LINK 3D protocol for commercial products.

Specifically, what does a company need to legally do to create devices that transmit (i.e. projectors) and receive (i.e. active glasses) for the purpose of selling these products.

As well, will the TPS65835 chip (or newer variants) used for the timing of active DLP glasses be available to purchase for the foreseeable future? 

Thanks!

Peter

  • Peter,

    Let me see who to connect you with on this inquiry.  Please allow a day to determine this.  

    Fizix

  • Peter,

    Sorry for the delay on this it is a little more involved.  There are two parts to this answer:

    1.  On the technical side, 3D DLP Link pulses are generated by DLP sequences.  You don’t need to do anything special. 3D support on DLP products is open to both consumer and commercial products, it comes with the software releases and should work with 3D DLP Link glasses available on the market from 3rd party companies.

    2.  Since it sounds like you are wanting to design your own 3D DLP Link glasses, you would need to research if the the technology is patented by 3D glasses companies.  We are inquiring with our legal department to see if they have any guidance on this.

    Fizix

  • Hello there, and thank you for the response.

    My requirements are to understand the legal usage of both the transmission and receiving end of the protocol. In particular, I have the desire to produce a new projector-type device that transmits the signal. Can I freely create the device which will send out the DLP sync signal to spec, which will in return trigger commercially available DLP glasses?

    Eventually, I can see building DLP based glasses, and look into patents outside of DLP 3D LINK that may be imposed by 3D glass companies.

    From my second question: I want to know if the TI chip(s) that I asked about in my previous message are going to be available for the foreseeable future (like for the next 5 years, for example). It seems as if these are required to regulate power, read a photo sensor, and control the shutter speed of the active lenses. Without these, it would be tricky to build DLP glasses, but I await your advice on this.

    Thank you!

  • As I am reading over the first part of your answer, it seems as if my first follow-up question has been answered, which is that the creator of a product that needs to produce the 3D DLP LINK signal is allowed to implement this freely into the product. Is that correct? 

  • Peter,

    Do the best of our understanding you can use the both the transmission and receiving side, and are allowed to implement this freely into the product.  Be aware that we have not yet heard back from our legal department.

    We are unable to make any promises on continued availability of any particular TI chip, however we are not aware of any upcoming changes.

    Fizix

  • Peter

    You can find more information on TI.com regarding TI Product Life Cycle

    www.ti.com/.../product-life-cycle.html

  • Thank you Carey, this information is very informative and has helped me resolve my question about the DLP active glasses chip supply.

  • Thank you Fizix, I appreciate your response and will keep an eye out for an update from your legal department.  

  • Hello Peter,

    It appears that there is not a license issue from the TI side.  Regarding IP that does not belong to TI we are unable to comment on.

    Best of luck and let us know how it goes.

    Fizix

  • Thank you Fizix, this answers my question. I truly appreciate your help!

    Peter