# US 12,218,174 B2 · Electronic device with micro-photoelectric units > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,218,174 B2 - Document ID: US12218174B2 - Status: Granted - Kind: B2 - Application number: 18/586,407 - Filed: 2024-02-23 - Published: 2024-06-13 - Granted: 2025-02-04 - Earliest claimed: 2020-01-16 - Assignees: LG Display Co., Ltd. - Applicants: LG Display Co., Ltd. - Inventors: Hsien-Te Chen - Web page: https://patentgrep.com/patent/US12218174B2 ## CPC - H10F 39/198: {Contact-type image sensors [CIS]} - G06V 40/1318: {using electro-optical elements or layers, e.g. electroluminescent sensing} - H10F 39/8033: {Photosensitive area} - H10F 39/806: {Optical elements or arrangements associated with the image sensors} - H10F 77/334: {for shielding light, e.g. light blocking layers or cold shields for infrared detectors} - H10W 90/00: Package configurations - Y02E 60/50: Fuel cells - H10F: INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION - G06V: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING - H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10 - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract An electronic device may include: a display panel comprising a pixel flexible substrate, a driving circuit, a display medium formed from an organic light-emitting material, and a plurality of shielding units; and a plurality of micro photoelectric units adjacent to a protection layer and away from the display panel. The plurality of micro-photoelectric units may comprise respective micro-photoelectric elements, and at least one of the micro-photoelectric elements may be, or may include, a sensor element. The protection layer may serve to protect the plurality of micro-photoelectric units while being located at one side of the plurality of micro-photoelectric units. Each of the plurality of micro photoelectric units may be configured to emit light toward an object, and to receive the light reflected, scattered, refracted, or diffracted by, or penetrating through, the object, or receive a signal generated from the light after being reflected, scattered, refracted, or diffracted by, or penetrating through, the object. ## Claims ### Claim 1 An electronic device, comprising: a display panel comprising a pixel flexible substrate, a driving circuit, a display medium formed from an organic light-emitting material, and a plurality of shielding units; and a plurality of micro photoelectric units adjacent to a protection layer and away from the display panel, wherein the plurality of micro-photoelectric units comprise respective micro-photoelectric elements, and at least one of the micro-photoelectric element is, or includes, a sensor element, wherein the protection layer serves to protect the plurality of micro-photoelectric units while being located at one side of the plurality of micro-photoelectric units, and wherein each of the plurality of micro photoelectric units is configured to: emit light toward an object, and receive the light reflected, scattered, refracted, or diffracted by, or penetrating through, the object, or receive a signal generated from the light after being reflected, scattered, refracted, or diffracted by, or penetrating through, the object. ### Claim 2 (depends on 1) The electronic device of claim 1, wherein the light emitted from the plurality of micro photoelectric units comprises at least one of red light, infrared (IR) light, and green light. ### Claim 3 (depends on 1) The electronic device of claim 1, wherein each of the plurality of micro photoelectric units comprises at least one micro-photoelectric element emitting infrared (IR) light, ultraviolet (UV) light, or visible light. ### Claim 4 (depends on 1) The electronic device of claim 1, further comprising: a plurality of pixels connected to the driving circuit, wherein at least one of the plurality of micro photoelectric units unshields one or more of the plurality of pixels. ### Claim 5 (depends on 1) The electronic device of claim 1, wherein the protection layer is a rigid substrate, a flexible substrate, or a protection film for covering the plurality of micro-photoelectric units. ### Claim 6 (depends on 1) The electronic device of claim 1, further comprising: a plurality of shielding units disposed over the pixel substrate. ### Claim 7 (depends on 6) The electronic device of claim 6, further comprising: a plurality of pixels connected to the driving circuit, wherein each of the plurality of shielding units surrounds a corresponding one of the plurality of pixels. ### Claim 8 (depends on 1) The electronic device of claim 1, wherein the signal received by each of the plurality of micro photoelectric units is a photoplethysmography (PPG) signal. ### Claim 9 (depends on 8) The electronic device of claim 8, wherein the photoplethysmography (PPG) signal is indicative of a physical quantity produced by blood circulatory system. ### Claim 10 (depends on 1) The electronic device of claim 1, wherein the signal received by each of the plurality of micro photoelectric units is a photoelectric current. ### Claim 11 (depends on 1) The electronic device of claim 1, wherein the electronic device is a virtual reality (VR) head-mounted display or an augmented reality (AR) head-mounted display. ### Claim 12 (depends on 1) The electronic device of claim 1, wherein each of the plurality of micro photoelectric units comprises a light-emitting element and the sensor element. ### Claim 13 (depends on 12) The electronic device of claim 12, wherein: the light-emitting element is configured to emit the light; and the sensor element is configured to sense the light reflected, scattered, refracted, or diffracted by, or penetrating through, the object, and to generate the signal. ### Claim 14 (depends on 13) The electronic device of claim 13, wherein: the light-emitting element emits the light toward a skin of the object; and the sensor element measures one or more changes of pulse and blood oxygen concentration of a body of the object. ### Claim 15 (depends on 1) The electronic device of claim 1, wherein: micro-photoelectric elements of a part of the plurality of micro photoelectric units comprise light-emitting elements of one or more types; and micro-photoelectric elements of another part of the micro-photoelectric units comprise one or more light-emitting elements of one or more types. ### Claim 16 (depends on 1) The electronic device of claim 1, wherein each of micro-photoelectric elements of at least a part of the plurality of micro-photoelectric units is a sensor element or a light-emitting element, or comprises a plurality of sensor elements or a plurality of light-emitting elements. ### Claim 17 (depends on 1) The electronic device of claim 1, wherein a micro-photoelectric element of one micro-photoelectric unit among the plurality of micro-photoelectric units, which functions as a sensor element, senses the light emitted from a micro-photoelectric element of another micro-photoelectric unit among the plurality of micro-photoelectric units, which functions as a light-emitting element. ### Claim 18 (depends on 1) The electronic device of claim 1, further comprising: a driving circuit board stacked on and disposed parallel to the pixel substrate; and a control element disposed on the driving circuit board and electrically connected to the pixel substrate via a flexible substrate. ### Claim 19 (depends on 1) The electronic device of claim 1, further comprising: a plurality of pixels connected to the driving circuit, wherein the driving circuit comprises a plurality of driving units, and the plurality of driving units and the plurality of pixels are disposed in a same layer. ### Claim 20 (depends on 1) The electronic device of claim 1, further comprising: a plurality of pixels connected to the driving circuit; and a plurality of filter units disposed over the pixel substrate, wherein each of the plurality of filter units comprises at least one protrusion facing the plurality of pixels.