ELECTRONIC APPARATUS COMPRISING PIEZOELECTRIC MODULE

    公开(公告)号:US20240029469A1

    公开(公告)日:2024-01-25

    申请号:US18376401

    申请日:2023-10-03

    Abstract: An electronic apparatus according to an embodiment comprises: a housing; and a piezoelectric module including a first region that detects biometric information by using ultrasonic waves and a second region that provides haptic feedback, wherein the piezoelectric module includes: a first electrode layer and a second electrode layer facing each other; and a piezoelectric layer which is positioned between the first electrode layer and the second electrode layer, at least one portion of the piezoelectric layer positioned in the first region of the piezoelectric module may vibrate in a first frequency band to emit the ultrasonic waves, and at least one portion of the piezoelectric layer positioned in the second region of the piezoelectric module may vibrate in a second frequency band lower than the first frequency hand.

    ELECTRONIC DEVICE COMPRISING SENSOR MODULE FOR SENSING PRESSURE AND TRANSMITTING AND RECEIVING ULTRASOUND SIGNAL BY USING PIEZOELECTRIC ELEMENT

    公开(公告)号:US20210319196A1

    公开(公告)日:2021-10-14

    申请号:US17056461

    申请日:2019-06-04

    Abstract: Various embodiments of the present invention relate to an electronic device having a sensor module performing a plurality of functions, the electronic device comprising: the sensor module comprising a plurality of piezoelectric elements including a plurality of first electrodes and a plurality of second electrodes, a first signal terminal connected to the plurality of first electrodes, a second signal terminal, and a plurality of switches capable of selectively connecting at least some electrodes of the plurality of second electrodes to the second signal terminal; and a control circuit. The control circuit is configured to: in a state where the second signal terminal is connected to the at least some electrodes by means of the plurality of switches, detect a pressure inputted into the sensor module by means of the first signal terminal, by using at least some of the plurality of piezoelectric elements; on the basis of the pressure, in a state where the second signal terminal is connected to the at least some electrodes by means of the plurality of switches, output an ultrasound signal by using at least some of the plurality of piezoelectric elements by means of the first signal terminal; in a state where the second signal terminal is disconnected from the at least some electrodes by means of the plurality of switches, receive the ultrasound signal reflected to an external object, by using at least some of the plurality of piezoelectric elements; and generate biometric information on the external object, at least on the basis of the received ultrasound signal. Thus, when waiting for a user's fingerprint touch, the sensor module operates as a pressure sensor, and when a predetermined pressure due to the user's fingerprint touch is detected, the sensor module can operate as a fingerprint sensor. Various other embodiments are possible.

    ELECTRONIC DEVICE INCLUDING STRUCTURE COMPENSATING FOR HEIGHT DIFFERENCE BETWEEN SENSOR AND ELASTIC MEMBER DISPOSED ON BACK SURFACE OF DISPLAY

    公开(公告)号:US20210312154A1

    公开(公告)日:2021-10-07

    申请号:US17266156

    申请日:2019-06-24

    Abstract: An electronic device having a step compensated fingerprint sensor is disclosed. The electronic device includes a display panel including a front surface and a rear surface; an elastic member, disposed on the rear surface of the display panel, including an opening and having a first designated height; a sensor having a second designated height lower than the first designated height and disposed in an inner space formed by a side surface, having the first designated height, of the opening and the rear surface of the display panel; a connection member electrically connected to the sensor and disposed on the sensor with a third designated height compensating for a difference between the first designated height and the second designated height; and a flexible substrate electrically connected to the connection member in the opening and extended to an area of the elastic member.

    ELECTRONIC DEVICE INCLUDING POINT DETECTOR AND BIOMETRIC INFORMATION OBTAINING METHOD USING THE SAME

    公开(公告)号:US20210110130A1

    公开(公告)日:2021-04-15

    申请号:US17025050

    申请日:2020-09-18

    Abstract: An electronic device includes a display panel including at least one light source, a point detector disposed on one surface of the display panel or inside the display panel, and at least one processor operatively connected with the display panel and the point detector. The at least one processor is configured to cause the at least one light source to emit light in response to an object outside the display panel, detect, through the point detector, at least a portion of the emitted light reflected by at least a portion of the object, and obtain biometric information corresponding to the object based on the detection.

    ELECTRONIC DEVICE INCLUDING TOUCH SENSOR-BONDING STRUCTURE

    公开(公告)号:US20190317627A1

    公开(公告)日:2019-10-17

    申请号:US16381248

    申请日:2019-04-11

    Abstract: Disclosed is an electronic device that includes: a housing including a first plate facing a first direction and a second plate facing a direction opposite the first direction; a display layer disposed between the first and second plates; and a touch detection layer disposed between the display layer and the second plate, wherein the touch detection layer may include: a first layer including a first face facing the display layer, a second face facing a direction away from the first face, and an opening; a second layer disposed between the opening and the second plate, electrically connected to the first layer, and being coupled to the first layer; and a fingerprint sensor disposed in the opening and disposed between the first layer and the second layer.

    ELECTROSTATIC INDUCTION DEVICE FOR PERFORMING POWER GENERATING FUNCTION

    公开(公告)号:US20170141701A1

    公开(公告)日:2017-05-18

    申请号:US15351125

    申请日:2016-11-14

    Abstract: An electrostatic induction device is provided which includes at least one first element including a first electrode, a second electrode electrically connected to the first electrode, and a third electrode electrically connected to the first electrode and the second electrode, at least one second element including a charged area having been charged with positive or negative charges and moves while adjacent to the first element so as to cause an electrostatic induction action with the first element, and a third element which is electrically connected to the first element, and receives, from the first element, a first electric current generated between the first and the second electrode, a second electric current generated between the first and the third electrode, and a third electric current generated between the second and the third electrode, by the movement of the second element, and rectifies the received first, second and third electric currents.

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