difference between positive and negative mode

[proto]

On a character or segment LCD, what is the difference between positive and negative mode? is what lower power than the other?

[LCD_Designs]

Positive mode means the letters/numbers are dark and background is light.
Negative means the letters/numbers are light and the background is dark.
here is an https://focuslcds.com/journals/an-overv ... d-screens/ with photos.