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LG Innotek Devises Under-the-Glass Fingerprint Sensor

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May 2, 2016, 7:21 AM   by Eric M. Zeman   @phonescooper

LG Innotek revealed a new fingerprint sensor that works through glass, allowing LG and other smartphone makers to create devices free from buttons. LG Innotek was able to do this by carving a small furrow out of the back side of the glass. It then glued the sensor in this furrow with a new, strengthened adhesive. LG Innotek says the embedded fingerprint sensor is just as accurate and quick as those within physical buttons, and has a false positive rate of 0.002%. LG Innotek claims the cover panel glass is still impact resistant, despite the thinner area where the fingerprint sensor is located. The company believes the solution will give phone designers more freedom to innovate, for example, by creating waterproof, buttonless phones. LG Innotek did not say when it expects its under-the-glass fingerprint sensor to ship. Synaptics developed a similar solution last year.

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