Visible display construction from top to bottom

FrankT

• February 28, 2020 15:57

Hi,

When I write a complete screen of new data it is visible for the user. You can see the buildup from top to bottom. Writing SPI data takes 700ms and the CS-line is low all the time. In the data-sheet is mentioned that data is copied to the screen every time the CS-line goes high.
Is it possible to build-up a screen wthout the visible screen construction?

Regards,
Frank

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• 

  Ted M.

  NHD Staff

  • February 28, 2020 18:45

  Hi Frank,
  
  Please let us know the part number of the display in question.
  
  Regards,

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  FrankT

  • March 01, 2020 13:12

  Hi,
  
  Part number is: NHD-1.69-160128G
  
  Regards,
  Frank

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  Alee_S

  • March 02, 2020 09:42

  Hi FrankT,
  
  One way to avoid seeing visible screen construction is to use the 'display ON/OFF' command (06h) and keep the display OFF while the screen is being constructed, and only turn the display ON when the screen has been fully written and constructed.
  
  Best,

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  FrankT

  • March 03, 2020 02:15

  Hi,
  
  But in this case the display will go to black and show the content again after it is switched on. Is this really the best solution?
  
  Regards,
  Frank

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  Alee_S

  • March 27, 2020 16:15

  Hi FrankT,
  
  The new screen will have to be drawn over any previous screen before it, and will take some time to finish this process and will not occur instantly unfortunately.
  If the goal is to eliminate a viewing screen construction, using the display ON/OFF command would be the better way to go about it.
  
  Best,

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