• on Miscellaneous Electronics
  • Published in issue 7/2009 on page 98
About the article

Backlight Delay

For devices where there's no need to read an LCD continuously, the backlight doesn't need to stay lit up all the time — several seconds is often all you need to read the display. This saves a little power and lengthens the life of the backlight. Devices fitted with an LCD also have a processor, and so it's possible to employ a function to control the backlight directly from within the processor software.
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