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Y
Yli.8
Visitor II
September 25, 2019
Question

Mipi-dsi display problem

  • September 25, 2019
  • 1 reply
  • 713 views

1,What is the reason for setting the display frequency to 50HZ instead of 60HZ?

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2, I designed a circuit board, using mipi to HDMI chip, and found that using 60HZ frequency to drive the display will jitter.

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    1 reply

    A
    AntonioST
    ST Employee
    September 30, 2019

    Hi,

    ST boards use 50Hz instead of 60Hz only to save some internal bus bandwidth that, depending on use cases, could be better used by other applications/subsystems.

    You have to check that all the timings fit with the spec from the display manufacturer. In general, changing only the field vrefresh is not enough.

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