US 2020/0349333 A1 · Fingerprint Identification Apparatus, Display Apparatus, and Electronic Device

Abstract

An electronic device includes: a cover glass, including a first side and a second side; an ultrasonic wave transmitter and an ultrasonic wave receiver, arranged on the second side of the cover glass. Orthographic projections of the ultrasonic wave transmitter and the ultrasonic wave receiver onto the cover glass may be at two opposing ends of the cover glass. The ultrasonic wave transmitter is configured to emit an ultrasonic wave, the ultrasonic wave is able to enter the cover glass from an end, reflected between the first side and the second side for a plurality of times, emitted out of the cover glass from another end, and received by the ultrasonic wave receiver.

Claims20

Dependent claims

An apparatus for fingerprint identification, comprising:

a cover glass, comprising a first side and a second side opposing to the first side;
and
an ultrasonic wave transmitter and an ultrasonic wave receiver, arranged to face the second side of the cover glass, wherein
an orthographic projection of the ultrasonic wave transmitter onto the cover glass and an orthographic projection of the ultrasonic wave receiver onto the cover glass are located at two opposing ends of the cover glass, the ultrasonic wave transmitter is configured to emit an ultrasonic wave;
and
when fingerprint identification is being performed, the ultrasonic wave enters the cover glass at one end of the cover glass and emerges on the other end of the cover glass, and the ultrasonic wave is being reflected between the first side and the second side until the ultrasonic wave is received by the ultrasonic wave receiver.

3 more elements

A display apparatus, capable of performing fingerprint identification, comprising:

a display screen module, comprising a cover glass and a display panel covered by the cover glass, wherein the cover glass comprises a body portion and a guide portion arranged at an edge of the body portion;
and
an ultrasonic wave transmitter and an ultrasonic wave receiver, wherein
the ultrasonic wave transmitter and the ultrasonic wave receiver are arranged on a same side of the cover glass and at two opposing ends of the same side of the cover glass;
the ultrasonic wave transmitter is configured to define a nozzle, the nozzle of the ultrasonic wave transmitter faces the guide portion, and the ultrasonic wave transmitter is configured to emit an ultrasonic wave to the cover glass through the nozzle of the ultrasonic wave transmitter;
when fingerprint identification is being performed, the ultrasonic wave propagates through the cover glass and is being reflected within the cover glass;
the ultrasonic wave receiver is configured to define a nozzle, the nozzle of the ultrasonic wave receiver faces the guide portion, and the ultrasonic wave receiver is configured to receive the ultrasonic wave emitted out of the cover glass;
and
the ultrasonic wave is configured to collect fingerprint information of a user.

6 more elements

An electronic device, comprising:

a shell;
a display screen module, comprising a cover glass and a display panel covered by the cover glass, wherein the display screen module is engaged with the shell to define a receiving space, and the cover glass comprises a body portion and a guide portion arranged at an edge of the body portion;
and
an ultrasonic wave transmitter and an ultrasonic wave receiver, received in the receiving space, wherein
the ultrasonic wave transmitter is configured to emit an ultrasonic wave, the ultrasonic wave receiver is configured to receive the ultrasonic wave;
when ultrasonic wave transmitter emits the ultrasonic wave towards the cover glass, the ultrasonic wave is being reflected by the guide portion and directed by the guide portion to enter the cover glass, and propagate to reach the ultrasonic wave receiver;
and
the ultrasonic wave is configured to collect fingerprint information of a user.

5 more elements

Dependencies are inferred from the claim text.

Fingerprint Identification Apparatus, Display Apparatus, and Electronic Device

Life of this patent

Fingerprint Identification Apparatus, Display Apparatus, and Electronic Device

Life of this patent

Abstract

Claims20