DISPLAY DEVICE AND BLOOD PRESSURE MEASUREMENT METHOD USING THE SAME

    公开(公告)号:US20230320597A1

    公开(公告)日:2023-10-12

    申请号:US17965159

    申请日:2022-10-13

    Abstract: The blood pressure measurement method using a display device includes generating a first pulse wave frequency signal having a magnitude of a pulse wave signal according to a frequency having a fundamental wave component and a harmonics component based on a pressure measurement value and a pulse wave signal, calculating a coefficient of a transfer function based on center frequencies and maximum gains at center frequencies of first harmonics to third harmonics of the first pulse wave frequency signal, generating a second pulse wave frequency signal by blocking noise components of the first harmonics to the third harmonics of the first pulse wave frequency signal based on the transfer function, generating a first pulse wave signal having a magnitude of a pulse wave signal according to a pressure based on the second pulse wave frequency signal, and calculating blood pressure information based on the first pulse wave signal.

    DISPLAY DEVICE AND BLOOD PRESSURE MEASUREMENT METHOD USING THE SAME

    公开(公告)号:US20230346315A1

    公开(公告)日:2023-11-02

    申请号:US17989543

    申请日:2022-11-17

    Abstract: A blood pressure measurement method using a display device including: a display panel including first sub-pixels and second sub-pixels; a pressure sensor to sense a pressure applied from the outside; and a photo-sensor to sense light, includes: generating a first pulse wave signal according to light emitted by the first sub-pixels and sensed by the photo-sensor; generating a second pulse wave signal according to light emitted by the second sub-pixels and sensed by the photo-sensor; generating a third pulse wave signal by removing noise from the second pulse wave signal based on the first pulse wave signal, the second pulse wave signal, and a maximum value of the first pulse wave signal; and calculating blood pressure information based on the third pulse wave signal and a pressure measurement value sensed by the pressure sensor. The blood pressure information is displayed on the display panel.

    FORCE SENSOR, DISPLAY DEVICE INCLUDING THE SAME, AND METHOD FOR DRIVING THE SAME

    公开(公告)号:US20210319198A1

    公开(公告)日:2021-10-14

    申请号:US17189203

    申请日:2021-03-01

    Abstract: Provided are a force sensor, a display device including the same, and a method of driving the same. The force sensor includes a first base substrate and a second base substrate facing each other; first force sensor electrodes extending in a first direction and arranged in a second direction crossing the first direction on the first base substrate; second force sensor electrodes extending in the second direction and arranged in the first direction on the second base substrate; and a sensor hole configured to transmit light. Any one of the first force sensor electrodes includes a first sub-force sensor electrode disposed on a first side of the sensor hole and a second sub-force sensor electrode disposed on a second side opposite to the first side of the sensor hole.

    DISPLAY DEVICE
    19.
    发明申请

    公开(公告)号:US20210296408A1

    公开(公告)日:2021-09-23

    申请号:US17087501

    申请日:2020-11-02

    Abstract: A display device includes a display panel comprising a through hole and a pixel area, the pixel area surrounding the through hole and including pixels for displaying an image; a force sensor at a first surface of the display panel and configured to sense force applied from an outside; and a light sensor overlapping the through hole of the display panel in a thickness direction of the display panel, the light sensor being configured to sense light incident on the light sensor through the through hole.

    FORCE SENSOR AND DISPLAY DEVICE INCLUDING THE SAME

    公开(公告)号:US20210117064A1

    公开(公告)日:2021-04-22

    申请号:US16893310

    申请日:2020-06-04

    Abstract: A force sensor includes: a plurality of touch cells comprising a plurality of driving electrodes, a pressure sensing layer overlapping the driving electrodes, and a plurality of sensing electrodes overlapping the pressure sensing layer; and a touch driver configured to receive a raw data from the plurality of touch cells and to detect a touch pressure applied to the plurality of touch cells. The touch driver includes: a filtering unit configured to filter the raw data and to output sensing data; a data storage unit configured to store max data having the highest value from among the sensing data and propagation data of at least one adjacent touch cell adjacent to a max touch cell having the max data; and a noise removing unit configured to detect and remove noise from the sensing data.

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