# US 11,307,720 B2 · Touchscreen with biosensor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,307,720 B2 - Document ID: US11307720B2 - Status: Granted - Kind: B2 - Application number: 16/729,347 - Filed: 2019-12-28 - Published: 2020-04-30 - Granted: 2022-04-19 - Earliest claimed: 2019-09-27 - Assignees: Intel Corporation - Applicants: Intel Corporation - Inventors: Sean Jude William Lawrence - Web page: https://patentgrep.com/patent/US11307720B2 ## CPC - G06F 3/0421: {by interrupting or reflecting a light beam, e.g. optical touch-screen} - A61B 5/02416: {using photoplethysmograph signals, e.g. generated by infrared radiation (A61B5/14552 takes precedence)} - A61B 5/02427: {Details of sensor} - 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 3/0441: {using active external devices, e.g. active pens, for receiving changes in electrical potential transmitted by the digitiser, e.g. tablet driving signals} - G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes} - G06V 40/1318: {using electro-optical elements or layers, e.g. electroluminescent sensing} - G06V 40/1341: {Sensing with light passing through the finger} - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - G06V: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING ## Abstract Particular embodiments described herein provide for an electronic device that can be configured to include a touchscreen that includes one or more biosensors. The touchscreen can include drive lines, sense lines, a photoconductive material, one or more biosensing areas, a touchscreen engine, and a biosensor engine. In a touchscreen mode, the touchscreen engine can be configured to couple with the sense lines and determine a place on the touchscreen where a user touched. In a biosensing mode, the biosensor engine can be configured to use the drive lines or sense lines and determine biometrics of the user. ## Claims ### Claim 1 An electronic device comprising: a touchscreen, wherein the touchscreen includes: drive lines; sense lines; one or more biosensing areas; and a photoconductive material in the one or more biosensing area, wherein the photoconductive material includes graphene and at least a portion of the drive lines and the sense lines are embedded in the photoconductive material; a touchscreen engine, wherein when a touchscreen mode is activated, the touchscreen engine is configured to couple with the sense lines and determine a place on the touchscreen where a user touched the touchscreen with a finger; and a biosensor engine, wherein when a biosensing mode is activated, the biosensor engine is configured to determine biometrics of the user when the user touches at least one of the one or more biosensing areas. ### Claim 2 (depends on 1) The electronic device of claim 1, further comprising: a light source, wherein light from the light source reflects off of the user's finger and causes a current to flow in a plurality of the drive lines. ### Claim 3 (depends on 2) The electronic device of claim 2, wherein the biosensor engine uses the current in the plurality of the drive lines to determine the biometrics of the user. ### Claim 4 (depends on 1) The electronic device of claim 1, further comprising: a light source, wherein light from the light source reflects off of the user's finger and causes a current to flow in a plurality of the sense lines. ### Claim 5 (depends on 4) The electronic device of claim 4, wherein the biosensor engine uses the current in the plurality of the sense lines to determine the biometrics of the user. ### Claim 6 (depends on 1) The electronic device of claim 1, wherein the biometrics of the user includes photoplethysmogram (PPG) related data. ### Claim 7 (depends on 1) The electronic device of claim 1, wherein the electronic device is a laptop computer. ### Claim 8 A method comprising: determining, when a touchscreen mode is activated, a place on a touchscreen where a user touched the touchscreen, wherein the touchscreen includes drive lines, sense lines, a light source, and photoconductive material, wherein the photoconductive material includes graphene and at least a portion of the drive lines and the sense lines are embedded in the photoconductive material, wherein when the touchscreen mode is activated, a touchscreen engine is configured to couple with the sense lines and determine a place on the touchscreen where a user touched the touchscreen; and determining biometrics of the user when the user touches the touchscreen, wherein the biometrics of the user includes photoplethysmogram (PPG) related data. ### Claim 9 (depends on 8) The method of claim 8, wherein the touchscreen includes a biosensing area when a drive signal source for the touchscreen is disabled. ### Claim 10 (depends on 8) The method of claim 8, wherein light from the light source reflects off of a user's finger and causes a current to flow in at least a portion of the drive lines. ### Claim 11 (depends on 10) The method of claim 10, wherein a biosensor engine uses the current to determine the biometrics of the user. ### Claim 12 A system for enabling a touchscreen with a biosensor, the system comprising: one or more processors; a touchscreen, wherein the touchscreen includes: drive lines; sense lines; one or more biosensing areas; a photoconductive material in the one or more biosensing area, wherein the photoconductive material includes graphene and at least a portion of the drive lines and the sense lines are embedded in the photoconductive material; and a drive signal source; a touchscreen engine, wherein when a touchscreen mode is activated, the drive signal sources is activated and touchscreen engine is configured to couple with the sense lines and cause at least one of the one or more processors to determine a place on the touchscreen where a user touched the touchscreen with a finger; and a biosensor engine, wherein when a biosensing mode is activated, the drive signal source is deactivated and biosensor engine is configured to cause at least one of the one or more processors to determine biometrics of the user when the user touches at least one of the one or more biosensing areas on the touchscreen. ### Claim 13 (depends on 12) The system of claim 12, further comprising: a light source, wherein light from the light source reflects off of the user's finger and causes a current to flow in a plurality of the drive lines. ### Claim 14 (depends on 13) The system of claim 13, wherein the biosensor engine uses the current in the plurality of the drive lines to determine the biometrics of the user. ### Claim 15 (depends on 14) The system of claim 14, further comprising: a light source, wherein light from the light source reflects off of the user's finger and causes a current to flow in a plurality of the sense lines. ### Claim 16 (depends on 15) The system of claim 15, wherein the biosensor engine uses the current in the plurality of the sense lines to determine the biometrics of the user. ### Claim 17 (depends on 12) The system of claim 12, wherein the biometrics of the user includes photoplethysmogram (PPG) related data.