Digits That Grow: Mechanical Push‑Pull Display Technology

Unlike conventional LCD or LED screens, our clock makes digits “grow” physically. At its core is a set of seven mechanical push‑pull segments (a~g). For the digit “1”, only the b and c segment actuators extend forward while the rest remain retracted; the two extended segments form a clear “1” in space. At the same time, built‑in sensors detect the extension and instantly illuminate the LEDs inside those segments, making the digit visible even in the dark. This technology is not only novel but also consumes far less power than always‑on displays.

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