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Original question:

DLP6500 pattern

DLP pattern

jing xia
Prodigy 200 points
Other Parts Discussed in Thread: DLPC3479, DLPC900, DLP9000, DLP6500FYE

Dear TI support,

I am writing to ask whether there is any DLP product that can display 540 1-bit distinct images in one time. Waiting for your reply. Thank you.

BR,

Jing Xia

  • 0
    TI__Mastermind 23090 points

    Hello Jing,

    Welcome to DLP forum and thank you for your interest in DLP technology. 

    Could you please share more details about your application? Is there a target resolution and brightness requirement? 

    Please help understand " 540 1-bit distinct image in one time". Are there 540 one bit mage is memory?  The  system goes through them and displays one after another without any external trigger or control?

    regards,

    Vivek

  • 0 in reply to Vivek Thakur
    Prodigy 200 points

    Hi Vivek,

    The resolution is 1920 x1080. " 540 1-bit distinct image in one time" means load 540 images into the flash in one time, then finish displaying all 540 images in 1 second. And yes, display one after without any external trigger but the timing. I have used the DLP6500, and with the on-the-fly pattern mode. But this DLP can permit 400 images in one time as the limit of flash size.

    Thank you.

    br,

    jing

  • 0 in reply to jing xia
    TI__Genius 9971 points

    Hi Jing,

    You can the meet your pattern display requirement using external pattern mode of DLPC3479 based DLP chipset.

    In external pattern mode, you will have to pack multiple 1bit patterns into 24bit BMP image and input these images via parallel video port to  DLPC3479 controller at runtime.

    Since patterns are displayed at runtime in external pattern mode, there are no flash size limitations associated with it.

    Thanks and regards,

    Mayank 

      

  • 0 in reply to Mayank Khandelwal
    TI__Intellectual 1915 points

    Jing

     Your existing DLP6500 DLPC900 platform also supports Video Pattern Mode, see DLPC900 Programmers guide section 5.1

    The DLPC900 limitation of 400 1-bit patterns for pre-stored pattern mode is not due to the external flash size but the DLPC900 internal DRAM size, (128 megabit) is only capable of holding 400 1-bit images at any one time.

  • 0 in reply to Mayank Khandelwal
    Prodigy 200 points

    Hi Mayank,

    Thank you for your reply. And could you tell me whether the DLP9000 evaluation board can meet the requirement or not? Thank you.

    BR,

    Jing

  • 0 in reply to Carey Ritchey
    Prodigy 200 points

    Hi Carey Ritchey,

    Thank you for your reply. Do you mean that I can use video pattern mode using DLP6500 to meet the requirement? How is speed? Can it display 540 images in one second? As far as I know from the datasheet, the frame rate of video is 120hz. Thank you.

    BR,

    Jing Xia

  • 0 in reply to jing xia
    TI__Intellectual 1915 points

    Jing

    120 Hz is the RGB 8-bit pattern rate for DLP6500 / DLPC900

    See table 1 in the DLP6500FYE datasheet 

    Video Pattern Mode will support up to 2880 Hz for 1 bit patterns

  • 0 in reply to Carey Ritchey
    Prodigy 200 points

    Hi Carey,

    As the DLP9000 includes 2 DLPC900, it is meaning that the DLP9000 EVM is capatable of 2x400  1-bit binary compressed patterns. Am I right?  And what is the load time for 540 imges?

    Thank you.

    BR,

    Jing Xia

  • 0 in reply to jing xia
    TI__Intellectual 1915 points

    Jing Xia

    Sorry no, the DL9000 is 4.1 Megapixels and uses the combined internal memory of both DLPC900 controllers to store 400 1-bit pattern data.

    Using pre-stored pattern mode with dual  DLPC900 controllers and the DLP9000 you can achieve 9.5 kHz pattern rates, the 400 internal restored patterns could be displayed in ~42 ms

    See  section 7.9

  • 0 in reply to Carey Ritchey
    Prodigy 200 points

    Hi Carey,

    Thank you for your reply. So the DLP9000 EVM board stores max 400 1-bit binary patterns. And could you suggest an EVM board that can pre-store 540 images with 1920x1080 resolution? 

    Thank you.

    BR,

    Jing Xia