# US 10,310,680 B2 · Display device, heart rate monitoring system and method of monitoring heart rate > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,310,680 B2 - Document ID: US10310680B2 - Status: Granted - Kind: B2 - Application number: 15/092,834 - Filed: 2016-04-07 - Published: 2017-03-02 - Granted: 2019-06-04 - Earliest claimed: 2015-08-31 - Assignees: Boe Technology Group Co., Ltd.; Beijing Boe Optoelectronics Technology Co., Ltd. - Applicants: Boe Technology Group Co., Ltd.; Beijing Boe Optoelectronics Technology Co., Ltd. - Inventors: Jiuxia Yang; Zhidong Wang - Web page: https://patentgrep.com/patent/US10310680B2 ## CPC - A61B 5/308: for electrocardiography [ECG] - A61B 5/0245: by using sensing means generating electric signals, {i.e. ECG signals} - A61B 5/282: Holders for multiple electrodes (for introduction into the body A61B5/287) - A61B 5/339: Displays specially adapted therefor - A61B 5/7203: {for noise prevention, reduction or removal} - G02F 1/13338: {Input devices, e.g. touch panels} - G06F 3/015: {Input arrangements based on nervous system activity detection, e.g. brain waves [EEG] detection, electromyograms [EMG] detection, electrodermal response detection} - G06F 3/0412: {Digitisers structurally integrated in a display} - G06F 3/04166: {Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving (Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally G06F3/04184)} - G06F 3/0443: {using a single layer of sensing electrodes} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract A display device comprising: a display module for displaying image and having a substrate being an upper component of the display module; a sensing electrode for sensing an electrocardio signal of a user, with the sensing electrode arranged above the substrate. With such a display device, high integration of the function of health test and the display device can be integrated, thereby improving usage experience of the user and facilitating to reduce the whole size of the display device. ## Claims ### Claim 1 A touch display device, comprising, a display module for displaying image and having a substrate being an upper component of the display module; and a sensing electrode for sensing an electrocardio signal of a user; wherein the sensing electrode is arranged above the substrate, wherein the sensing electrode comprises an array of sensing electrode units, and the touch display device further comprises an array of switching elements, each switching element of the array of switching elements corresponds to and is electrically connected with each sensing electrode unit of the array of sensing electrode units, wherein each switching element of the array of switching elements is configured to be turned on in response to a finger of the user touches the sensing electrode unit corresponding to the switching element, and turned off in response to the finger of the user leaves the sensing electrode unit corresponding to the switching element, wherein the array of sensing electrode units acts as touch electrodes during a touch period for detecting a touch position of the finger of the user. ### Claim 2 (depends on 1) The touch display device according to claim 1, wherein the sensing electrode covers a surface of the substrate. ### Claim 3 (depends on 1) The touch display device according to claim 1, wherein the sensing electrode comprises four sensing electrode units, each of which is respectively located at a corner of the surface of the touch display device. ### Claim 4 (depends on 1) The touch display device according to claim 1, wherein each sensing electrode unit is electrically connected with a source or drain of each switching element in the array of switching elements respectively. ### Claim 5 (depends on 4) The touch display device according to claim 4, wherein a layer of the array of the switching elements is arranged between a layer of the sensing electrode and the substrate. ### Claim 6 (depends on 5) The touch display device according to claim 5, wherein the touch display device further comprises a buffer layer between the substrate and the layer of the array of the switching elements. ### Claim 7 (depends on 6) The touch display device according to claim 6, wherein the touch display device further comprises a planarization layer covering the array of the switching elements. ### Claim 8 (depends on 7) The touch display device according to claim 7, wherein the touch display device further comprises a passivation layer formed above the planarization layer, and wherein the array of sensing electrode units is formed above the passivation layer. ### Claim 9 (depends on 8) The touch display device according to claim 8, wherein the touch display device comprises a processor for processing and analyzing the electrocardio signal sensed by the sensing electrode, and each switching element of the array of switching elements is configured to control an electrical connection between a corresponding sensing electrode unit and the processor, wherein the processor comprises: a filtering and protection circuit for filtering out a high-frequency interference signal in the electrocardio signal received from the sensing electrode; a preamplifier for amplifying the filtered electrocardio signal; an isolating circuit for isolating an output signal of the preamplifier from post-stage circuits of the processor; a driving and amplifying circuit for amplifying an output signal from the isolating circuit; a generation circuit for generating a signal of heart rate of the user by means of the amplified signal from the driving and amplifying circuit; and an output circuit, which is used for outputting the generated signal of heart rate to show the heart rate to the user through the touch display device. ### Claim 10 (depends on 1) The touch display device according to claim 1, wherein materials for forming the sensing electrode comprise at least one selected from the group consisting of indium tin oxide, carbon nanotube, and graphene. ### Claim 11 (depends on 1) The touch display device according to claim 1, wherein the substrate comprises a glass substrate. ### Claim 12 A heart rate monitoring system comprising a touch display device, the touch display device comprising: a display module for displaying image and having a substrate being an upper component of the display module; a sensing electrode for sensing an electrocardio signal of a user, the sensing electrode being arranged above the substrate, wherein the heart rate monitoring is performed through the user touching the sensing electrode of the touch display device with a finger, wherein the sensing electrode comprises an array of sensing electrode units, and the touch display device further comprises an array of switching elements, each switching element of the array of switching elements corresponds to and is electrically connected with each sensing electrode unit of the array of sensing electrode units, wherein each switching element of the array of switching elements is configured to be turned on in response to a finger of the user touches the sensing electrode unit corresponding to the switching element, and turned off in response to the finger of the user leaves the sensing electrode unit corresponding to the switching element, wherein the array of sensing electrode units acts as touch electrodes during a touch period for detecting a touch position of the finger of the user. ### Claim 13 A method of monitoring heart rate using a touch display device, the touch display device comprising: a display module for displaying an image and having a substrate being an upper component of the display module; and a sensing electrode for sensing an electrocardiosignal of a user, the sensing electrode being arranged above the substrate, wherein the sensing electrode comprises an array of sensing electrode units, and the touch display device further comprises an array of switching elements, each switching element of the array of switching elements corresponds to and is electrically connected with each sensing electrode unit of the array of sensing electrode units, wherein each switching element of the array of switching elements is configured to be turned on in response to a finger of the user touches the sensing electrode unit corresponding to the switching element, and turned off in response to the finger of the user leaves the sensing electrode unit corresponding to the switching element, wherein the array of sensing electrode units acts as touch electrodes during a touch period for detecting a touch position of the finger of the user, wherein the method comprises the user touching the sensing electrode with a finger to perform heart rate monitoring. ### Claim 14 (depends on 13) The method according to the claim 13, wherein the method further comprises steps of: touching or clicking the sensing electrode successively a plurality of times to successively obtain multiple voltage signals indicative of electrocardio signal of the user; calculating voltage differences between the obtained multiple voltage signals; and calculating a heart rate of the user by means of the voltage differences. ### Claim 15 (depends on 13) The method according to the claim 13, wherein the sensing electrode comprises a plurality of sensing electrode units, and wherein the method comprises steps of: touching different sensing electrode units with various fingers, to obtain voltage signals indicative of electrocardio signal of the user from each of the fingers; calculating voltage differences between the voltage signals obtained from different fingers; and calculating a heart rate of the user by means of the voltage differences. ### Claim 16 (depends on 15) The method according to the claim 15, wherein method further comprises steps of: touching the touch display device with several fingers, each finger contacting with multiple sensing electrode units of the array of the sensing electrode units such that the multiple sensing electrode units of the array of the sensing electrode units sense voltage signals indicative of electrocardio signal of the user from each of the fingers; averaging the voltage signals sensed by the multiple sensing electrode units contacting with each of the fingers to get a plurality of averaged voltage signals; calculating voltage differences between the plurality of averaged voltage signals; and calculating a heart rate of the user by means of the voltage differences between the plurality of averaged voltage signals. ### Claim 17 (depends on 16) The method according to the claim 16, wherein a switching element electrically connected with one or more sensing electrode units of the array of sensing electrode units is turned on in case the user's finger contacts the one or more sensing electrode units, and the switching element electrically connected with the one or more sensing electrode units is turned off in case the user's finger leaves the one or more sensing electrode units. ### Claim 18 (depends on 13) The method according to the claim 13, the method further comprises a step of showing a curve of heart rate or a value of heart rate to the user through the touch display device after the heart rate of the user is calculated.