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Power consumption of screen

Former Member
Former Member over 8 years ago
This is a bit of a dumb question and I could possibly google it but I don't fully understand the LCD technology in this watch. With a typical LCD IPS screen, showing "black" draws a fair amount of current as the screen still remains illuminated. With an OLED, black draws the least current because there is no illumination.

With this watch, does the "light" or "dark" mode draw different amounts of current and if so, which draws the least? Obviously this screen doesn't have an always on illumination, so perhaps black draws the least current.
  • 0 over 8 years ago
    This is a bit of a dumb question and I could possibly google it but I don't fully understand the LCD technology in this watch. With a typical LCD IPS screen, showing "black" draws a fair amount of current as the screen still remains illuminated. With an OLED, black draws the least current because there is no illumination.

    With this watch, does the "light" or "dark" mode draw different amounts of current and if so, which draws the least? Obviously this screen doesn't have an always on illumination, so perhaps black draws the least current.


    I did wonder if it was possible to have 'no display' until the watch face was turned up or a button pressed. Didn't know if that would add to the battery life somewhat. It was a feature of the MS Band that could be used.
  • 0 over 8 years ago
    The fenix 5X has a MIP (Memory-in-pixel) transflective LCD. What this means vis-a-vis power consumption is that only the pixels that change must be refreshed. Once a pixel is set (black, white, etc.) it requires no power to maintain that state. If that pixel's state is changed, it requires the same amount of power to change its state no matter what state it is currently in. Black background, white background - no difference in power consumption.

    HTH
  • 0 over 8 years ago
    The fenix 5X has a MIP (Memory-in-pixel) transflective LCD. What this means vis-a-vis power consumption is that only the pixels that change must be refreshed. Once a pixel is set (black, white, etc.) it requires no power to maintain that state. If that pixel's state is changed, it requires the same amount of power to change its state no matter what state it is currently in. Black background, white background - no difference in power consumption.

    HTH


    So the best watch face would have just static data for best battery consumption.
  • 0 over 8 years ago
    So the best watch face would have just static data for best battery consumption.


    Yes. Like the CIQ watch faces that don't display the seconds ;)
  • 0 over 8 years ago
    So the best watch face would have just static data for best battery consumption.


    And it would even be correct twice a day :cool:
  • 0 over 8 years ago
    And it would even be correct twice a day :cool:


    I admit - I wanted to say this!
    However - brand new posting from DCRainmaker on the new Garmin IQ features/capabilities https://www.dcrainmaker.com/2017/04/garmin-announces-smart-home-control-connect-iq-updates.html discusses that new changes to IQ will allow seconds hands full time on IQ watchfaces as well as other data with a very high refresh rate - without an impact on battery.
  • 0 over 8 years ago
    I can live with twice a day. Bring the accuracy inline with the GPS. ;-)

    I admit - I wanted to say this!
    However - brand new posting from DCRainmaker on the new Garmin IQ features/capabilities https://www.dcrainmaker.com/2017/04/garmin-announces-smart-home-control-connect-iq-updates.html discusses that new changes to IQ will allow seconds hands full time on IQ watchfaces as well as other data with a very high refresh rate - without an impact on battery.
  • 0 over 8 years ago
    The screen is black in its unpowered state. So black watchfaces etc. will cause less activities on the screen and consume less power.

    Also these screens have some kind of flickering issue at light colors. This shouldn't happen with such displays, 'cos that increases the refresh rate of the screen and causes higher power consumption I think.
  • 0 over 8 years ago
    Yes. Like the CIQ watch faces that don't display the seconds ;)


    Actuall, I'm on way home from the CIQ developer Summit in Kansas. Watchface will soon have the ability to display seconds all the time, with almost no change in how long the battery will last! The beta SDK for this is in developers hands right now!
  • 0 over 8 years ago
    Actuall, I'm on way home from the CIQ developer Summit in Kansas. Watchface will soon have the ability to display seconds all the time, with almost no change in how long the battery will last! The beta SDK for this is in developers hands right now!


    Good news!