Abstract:
A display device includes: a first area including a plurality of first pixels; a second area adjacent to the first area, and including a plurality of second pixels; a first photo sensor adjacent to the plurality of first pixels at the first area, and to sense light; and a second photo sensor adjacent to the plurality of second pixels at the second area, and to sense light. A size of an area of the second photo sensor is different from a size of an area of the first photo sensor.
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.
Abstract:
A pressure sensor, includes: a first substrate; a pressure sensing layer on one surface of the first substrate; and a driving electrode and a sensing electrode on the pressure sensing layer and spaced apart from each other, wherein the driving electrode and the sensing electrode are on a same layer, and each of the driving electrode and the sensing electrode is directly on the pressure sensing layer.
Abstract:
A thin film transistor array panel includes a substrate, a first gate electrode disposed on the substrate, a voltage wire disposed on the substrate, a gate insulating layer disposed on the first gate electrode and the voltage wire, a semiconductor pattern including an oxide semiconductor material disposed on the gate insulating layer, a source electrode and a drain electrode disposed at a distance from each other on the semiconductor pattern, a first passivation layer disposed on the source electrode and the drain electrode, and a first electrode disposed on the first passivation layer and connected with the voltage wire.
Abstract:
A display device including: display pixels arranged in a display area of a display panel; light sensing pixels arranged in the display area; a display scan driver configured to cause the display pixels to emit light; a light sensing scan driver configured to cause the light sensing pixels to sense light; and a main driving circuit configured to measure a user's biometric information by using light sensing signals provided from the light sensing pixels, wherein the main driving circuit senses the user's touch area when the user's biometric information is measured, and sets a biometric information measurement area and a measurement condition, which includes an emission color and an emission luminance, according to a shape of a sensed touch area and touch area information to measure the user's biometric information.
Abstract:
A pulse wave generation apparatus includes a pressure sensor sensing an external pressure, an optical adjustment unit configured to change a transmissivity of light, a reflection unit reflecting the light, and a control unit outputting an optical adjustment signal for changing the transmissivity based on a pressure measurement value received from the pressure sensor to the optical adjustment unit.
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.
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.
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.
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.