I'm redesigning a board game toy now. The first version use color flaps rotated by shaft to show color, red or blue, and it uses 7 segment LED to display a single digit of player score. I'm thinking of replacing the color flap with red and blue LED or other means to show these 2 colors. But we want the battery to last as long as possible. And of course a MCU will be used for control. Anybody have better idea about how to keep the power consumption as small as possible to have the battery replacement few? Any means are open, mechanical or electrical or else, the LED current consumption is too high, 1ma is just a very dim color on LED, and we have 18 color flaps to be replaced, it's a lot current consumption.