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DLP2010EVM-LC: Array Resolution versus Projection Resolution | color spreading

Tony Higgens
Intellectual 340 points

Part Number: DLP2010EVM-LC

Hi 

With the DMD resolution of 854/480 individual micro-mirrors, would you consider the projection to have a resolution of 854/480, or is there a multiplier effect such as "wobulation" at work, exploiting persistence of vision to given more projection points on the screen please?

Also, regarding the move from older technology to having to project White as Red, followed by Green, followed by Blue- is the spot center and diameter illuminated on the screen identical irrespective of color?

Thanks

A   

  • 0
    TI__Mastermind 20045 points

    Hello Tony,

    For the DLP2010 DMD the native resolution is the same as the projected resolution (854x480).

    For the color sequential PWM illumination I am curious as to what older technology you are comparing it to? With the exception of 3-chip solutions, I believe DLP® technology has been using this illumination type for quite some time. Could you elaborate a bit more on your specific question to help me better understand how to answer it?

    Thanks,
    Kyle

  • 0 in reply to Kyle Rakos
    Intellectual 340 points

    HI, 

    So the 4500 doesn't turn on the three leds together at the same time to make white light, there is a persistence of visions mechanism at play? 

    Also, when illuminating a single point in various colors, do you consider the location of that point on the screen to be precisely the same location and size every time, even if the three cases are viewed from an angle? 

    Regards

    T

  • 0 in reply to Tony Higgens
    TI__Expert 5485 points

    Hi Tony,

    You're right, the 4500 can turn on multiple LEDs together.

    Regarding the spot of illumination, DLP optical engines are usually designed such that light from all three LEDs is incident uniformly across the rectangular DMD surface, irrespective of whether the LEDs are turned on simultaneously or sequentially. This ensures that the light output is uniform and doesn't have a spot center.

    Regards

    Azad