This slimmed-down mechanical seven-segment display is a perfect example ... The PCB forms the rear cover for the display, which is also considerably slimmed down for this version.

7-segment LED displays were revolutionary, finally providing a clear, readable and low-power numerical display solution ... and a white 3D printed cover is printed for each digit to further ...

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 ...