[Lewis] has just the thing for that: a big expandable 7-segment display. The build is modular, allowing it to be extended from 2 to 10 digits and beyond. The digits themselves are made of 3D ...

In what might be a wonderful tribute to that, [Davide Gironi] created a simple AVR-powered 16-digit serial display. It can display two numbers ... for a single-motor seven-segment display.

For details about how liquid crystals work, see LCD subpixels for color screens and seven-segment display for monochrome ... transistors are used to activate rows and columns, not each subpixel ...

seven-segment display (Image courtesy of LXD, Inc.) In their natural state, liquid crystals line up with the orientation "rubbed" into the front and rear glass panels. The rubbings are microscopic ...