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DLP470TP: Can DLP470TP do HDR10 @ 4K60Hz or 1080p240Hz ?

Part Number: DLP470TP

I've noticed one of your official module providers does not support HDR with their evaluation module and an existing projector in the market does not support HDR as well.

Is this simply a missing feature of their boards or have DLP470TP and DLPC6421 completely dropped support for HDR10?

Thank you.

  • Hi John,

    Thank you for looking into DLP technology.

    HDR10 is not a standard feature offered in the DLPC6421/DLP470TP chipset. Some customers have this feature implemented in their front-end device; this chipset just accept RGB 30-bit data and doesn't support HDR10.

    However we at TI are looking to offer HDR10 in the next generation 4K chipset; I don't have exact time on when the new chipset supporting HDR10 available. It will be over next year or two. I hope this answers your question.

    Feel free to get back to us if you need any further assistance.

    Thanks.

    Sanjeev

  • Hi Sanjeev,

    I'm a bit confused regarding your answer,

    If the chipset accepts RGB 30-bit data, that IS the bit depth of HDR10. So unless the chipset accepts but does not display the full bit depth (which would be odd), what do you mean?

  • Hi John,

    Sorry about the confusion, physical interface is RGB 10-bits, internally the MSB 8-bits only processed. Where as in the new one it will be full 10bit. Hope this explains.

    Regards,
    Sanjeev

  • By new are you talking about a completely new chipset or a completely pin-compatible new version of DLP470TP and DLPC6421 that support HDR10?

    I'm really disappointed by this chipset. Firstly, you expect two DLPC controllers which adds a lot to the cost, then an extra expensive FPGA and on top of that dropped support for HDR10. How do you expect to remain competitive to LCoS? Unpolarized light support is not enouigh anymore at this point.

  • Hi John,

    DLPC6421/DLP470TP solution was never designed for HDR10 support. Originally the controller was built for sub-4K resolution processing in single controller configuration and then due to 4K band-width data requirement we had to use 2 controllers and the FPGA was intended for splitting the video frames into halves and also the 30-bit parallel video port cannot handle 4K @60Hz we added Vx1 interface to the FPGA to receive 4K signals. 

    Regarding the new chipset it will be a totally new controller and will not be pin-2-pin compatible against DLPC6421/DLP470TP.

    Regards,

    Sanjeev

  • Well then you shouldn't have repurposed the controller for 4K and made a new one. This design is very expensive to be as profitable as LCoS. Who was responsible for this decision?

    You ended up wasting years because of a sub-optimal solution.

  • Hi John,

    We understand your point. Please allow some time to get back to you.

    Regards,

    Sanjeev

  • Hi John,

    On the DLPC6421 i found more information that the controller although can handle the RGB 10-bit data but the internal hardware blocks not designed for full-range required for HDR. The chip re-purposed for 4K resolution support in dual-controller configuration until we have low-cost solution available to meet immediate market needs; the new controller in design will have HDR support and it is single controller configuration, this is cost effective solution. 

    Regards,

    Sanjeev

     

  • Thank you Sanjeev for your follow-up info,

    Will the new DMD be pin compatible or at least same form factor? I ask becaue I would like to know whether when the new DMD and DLPC become available your optical module (optical engine) provider partners will be able to use their existing designs which currently use DLP470TP and just swap the DMD or whether we will need to wait for them to design a new optical module (engine) due to different DMD form factor/connector.

    I would also like to know when do you estimate to have the new DLPC ready and shippable to the partners?

    Thanks.

  • Hi John,

    Will the new DMD be pin compatible or at least same form factor?

    >> It will same form factor but not pin 2 pin compatible.

    Whether we will need to wait for them to design a new optical module (engine) due to different DMD form factor/connector.

    >> Although it is same form factor the placement of the active array on the DMD is slightly different however the optical module maker can easily work on it by some minor rework on the existing optical engines. Therefore i recommend you waiting until optical module maker announcing light engine for the new DMD/chipset.

    I would also like to know when do you estimate to have the new DLPC ready and shippable to the partners?

    >> At this point of since the new controller and DMD is in design phase i don't have exact date on when it will be available in the market.  Tentatively the availability will be end of 4Q 2020 or 1Q 2021. 

    I hope this helps.

    Regards,

    Sanjeev

     

     

  • Hi John,

    I saw you have started another thread discussion http://e2e.ti.com/support/dlp/f/94/p/845853/3128337#3128337

    There is one point we would like to correct here in this thread, previously in one of my comment i mentioned 

    With regards to DLPC6421 physical interface is RGB 10-bits, internally the MSB 8-bits only processed. 

    This is incorrect, controller can process 10bit data inside the controller data path however as needed in HDR10 specification the controller is not be able handle high dynamic range especially towards lower gray scale intensities.

    Regards,

    Sanjeev