alt Hacker NewsMost of the power in a display goes to the backlight. Going grayscale and low res wouldn't save much at the same level of backlight brightness.
Replies
amlib • yesterday at 11:03 PM
Grayscale displays have no subpixels (or just one, depends how you view it) which should allow for more light from the backlight to pass through compared to a color display, thus reducing energy needs for a given brightness.
throwway120385 • yesterday at 11:02 PM
It would if it was a transflective display.
The Flipper Zero's screen is transflective, I suspect this one is the same. While this technology is possible on larger color displays, it is more common to find these manufactured as small grey-scale screens. They're ideal for battery operated devices because of their low power requirements -- they are legible with the backlight entirely off as long as there is light in the room.
Remember these?:
https://m.media-amazon.com/images/I/81sQxjJBn1L._AC_.jpg