Importance

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Abstract

A fingerprint sensor comprises a read-out line disposed on a substrate and extending in a first direction, a light receiving element disposed on the read-out line, a first sensor transistor controlling a sensing current based on a voltage of a sensor node that is a first electrode of the light receiving element, a second sensor transistor supplying a reset voltage to the sensor node based on a reset signal, and a third sensor transistor electrically connecting a first electrode of the first sensor transistor with the read-out line based on a gate signal. The fingerprint sensor further includes a power line disposed on a layer between the second sensor transistor and the read-out line and extending in the first direction. The power line overlaps the read-out line.

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First Claim