Key structure
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United States of America Patent
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Feb 22, 2022
Grant Date -
Jan 21, 2021
app pub date -
Jul 15, 2020
filing date -
Jun 17, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
A key structure includes a bottom plate, a keycap, a lifting mechanism, a thin-film switch layer and a backlight module. The bottom plate has a through hole. The lifting mechanism is pivotally connected to the bottom plate and the keycap. The thin-film switch layer has a reflective structure corresponding to the through hole. The backlight module includes a light source and a reflective layer. The light source is configured to emit light towards the reflective structure. The reflective layer is disposed surrounding the light source to reflect a reflected light from the reflective structure to the thin-film switch layer.
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