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DLPC3433: Can each LED duty cycle be changed?

Jin Cho
Prodigy 230 points
Part Number: DLPC3433

As I understood, DLP system's each duty cycle is divided.

I thought each LED duty cycle is 1/3 and sum of them is 1.

When I checked DLPC3433 Software Programmer's Guide, there is a sentence below.

Are those duty cycle fixed? or Can those value changed(adjusted)?

If each LED duty cycle can be adjusted, What register can adjust duty cycle?

BR

Jin

  • 0
    TI__Genius 11565 points

    Hello Jin,

    In the DLPC3433 firmware, each Look has specific RGB duty cycle settings in order to meet the specified white point and achieve good image quality. The RGB duty cycles do not have to be 1/3 of each LED. You can use register Read Sequence Header Attributes (26h) to read back the RGB duty cycle information, but we are not recommend to change the RGB duty cycle settings. 

    Can you say why you want to change the duty cycle settings? Do you have any specific settings you want to implement?

    Regards,

    Lori 

  • 0
    Prodigy 230 points

    Our system need to change duty of each LED to R 0.304, G 0.475 and B 0.221.

    Is it possible?

  • 0 in reply to Jin Cho
    TI__Expert 7105 points

    Hello Jin,

    I have sent you a friend request so we may take this thread offline.

    Best,

    Maximus