# US 2025/0169321 A1 · Display Device, Display Module, and Electronic Device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0169321 A1 - Document ID: US20250169321A1 - Status: Published application - Kind: A1 - Application number: 19/023,842 - Filed: 2025-01-16 - Published: 2025-05-22 - Earliest claimed: 2019-01-18 - Assignees: Semiconductor Energy Laboratory Co., Ltd. - Applicants: Semiconductor Energy Laboratory Co., Ltd. - Inventors: Taisuke KAMADA; Daisuke KUBOTA - Web page: https://patentgrep.com/patent/US20250169321A1 ## CPC - H10K 59/351: {comprising more than three subpixels, e.g. red-green-blue-white [RGBW]} - G02B 5/20: Filters (polarising elements G02B5/30) - G09F 9/30: in which the desired character or characters are formed by combining individual elements (panels comprising a number of electrodes in a single cell controlling light arriving from an independent light source, e.g. electro-optical or magneto-optical cell, G02F1/00) - G09F 9/335: {being organic light emitting diodes [OLED]} - H05B 33/12: Light sources with substantially two-dimensional [2D] radiating surfaces - H05B 33/22: characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers - H10F 30/20: the devices having potential barriers, e.g. phototransistors - H10F 39/12: Image sensors - H10F 55/00: Radiation-sensitive semiconductor devices covered by groups H10F10/00, H10F19/00 or H10F30/00 being structurally associated with electric light sources and electrically or optically coupled thereto - H10F 77/00: Constructional details of devices covered by this subclass (constructional details of integrated devices, or assemblies of multiple devices, comprising at least one element in which radiation controls the flow of current H10F39/00) - H10K 39/30: Devices controlled by radiation - H10K 50/13: comprising stacked EL layers within one EL unit - H10K 59/122: Pixel-defining structures or layers, e.g. banks - H10K 59/38: comprising colour filters or colour changing media [CCM] - H10K 59/60: OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes - H10K 59/65: OLEDs integrated with inorganic image sensors - H10K 59/879: {comprising refractive means, e.g. lenses} - H10K 59/8792: {comprising light absorbing layers, e.g. black layers} - H10K 59/40: OLEDs integrated with touch screens - Y02E 10/549: Organic PV cells - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL - H10F: INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract A display device having a light detection function is provided. A highly convenient display device is provided. The display device includes a light-receiving element, a first light-emitting element, and a second light-emitting element in a display portion. The light-receiving element includes a first pixel electrode, an active layer, and a common electrode. The first light-emitting element includes a second pixel electrode, a first light-emitting layer, and the common electrode. The second light-emitting element includes a third pixel electrode, a second light-emitting layer, and the common electrode. The active layer includes an organic compound. The active layer is positioned between the first pixel electrode and the common electrode. The first light-emitting layer is positioned between the second pixel electrode and the common electrode. The second light-emitting layer is positioned between the third pixel electrode and the common electrode. The first light-emitting layer is further positioned between the first pixel electrode and the common electrode and/or between the third pixel electrode and the common electrode. ## Claims ### Claim 1 (canceled) ### Claim 2 A display device comprising a display portion, the display portion comprising: a light-receiving element comprising a first pixel electrode, an active layer over the first pixel electrode, a first layer over the active layer, and a common electrode over the first layer; a first light-emitting element comprising a second pixel electrode, a first light-emitting layer over the second pixel electrode, the first layer over the first light-emitting layer, and the common electrode over the first layer; and a second light-emitting element comprising a third pixel electrode, a second light-emitting layer over the third pixel electrode, the first layer over the second light-emitting layer, and the common electrode over the first layer, wherein the first layer serves as an electron-transport layer in each of the light-receiving element, the first light-emitting element, and the second light-emitting element, and wherein the active layer comprises a first organic compound. ### Claim 3 (depends on 2) The display device according to claim 2, wherein the first light-emitting element emits light of a first color toward an outside of the display device through the common electrode, wherein the second light-emitting element emits light of a second color toward the outside of the display device through the common electrode, and wherein the light-receiving element receives light from the outside of the display device through the common electrode. ### Claim 4 (depends on 2) The display device according to claim 2, further comprising a first common layer, wherein the first common layer is between the first pixel electrode and the active layer and between the second pixel electrode and the first light-emitting layer. ### Claim 5 (depends on 4) The display device according to claim 4, further comprising a second common layer, wherein the second common layer is between the first layer and the common electrode. ### Claim 6 (depends on 2) The display device according to claim 2, wherein the display portion further comprises a bank, wherein the bank covers an end portion of the first pixel electrode and an end portion of the second pixel electrode, and wherein the bank is configured to electrically isolate the first pixel electrode and the second pixel electrode. ### Claim 7 A display device comprising a display portion, the display portion comprising: a light-receiving element comprising a first pixel electrode, a common electrode, an active layer between the first pixel electrode and the common electrode, and a first layer between the active layer and the common electrode; a first light-emitting element comprising a second pixel electrode, the common electrode, a first light-emitting layer between the second pixel electrode and the common electrode, and the first layer between the first light-emitting layer and the common electrode; a second light-emitting element comprising a third pixel electrode, the common electrode, a second light-emitting layer between the third pixel electrode and the common electrode, and the first layer between the second light-emitting layer and the common electrode; and a third light-emitting element comprising a fourth pixel electrode, the common electrode, and the first layer between the fourth pixel electrode and the common electrode, wherein the first layer serves as an electron-transport layer in each of the light-receiving element, the first light-emitting element, and the second light-emitting element, wherein the first layer serves as a third light-emitting layer in the third light-emitting element, and wherein the active layer comprises a first organic compound. ### Claim 8 (depends on 7) The display device according to claim 7, wherein the first light-emitting element emits light of a first color toward an outside of the display device through the common electrode, wherein the second light-emitting element emits light of a second color toward the outside of the display device through the common electrode, and wherein the third light-emitting element emits light of a third color toward the outside of the display device through the common electrode. ### Claim 9 (depends on 8) The display device according to claim 8, wherein the third color is blue. ### Claim 10 (depends on 7) The display device according to claim 7, further comprising a first common layer, wherein the first common layer is between the first pixel electrode and the active layer and between the second pixel electrode and the first light-emitting layer. ### Claim 11 (depends on 10) The display device according to claim 10, further comprising a second common layer, wherein the second common layer is between the first layer and the common electrode. ### Claim 12 (depends on 7) The display device according to claim 7, wherein the display portion further comprises a bank, wherein the bank covers an end portion of the first pixel electrode and an end portion of the second pixel electrode, and wherein the bank is configured to electrically isolate the first pixel electrode and the second pixel electrode. ### Claim 13 A display device comprising a display portion, the display portion comprising: a light-receiving element comprising a first pixel electrode, a first light-emitting layer over the first pixel electrode, an active layer over the first light-emitting layer, and a common electrode over the active layer; a first light-emitting element comprising a second pixel electrode, the first light-emitting layer over the second pixel electrode, the active layer over the first light-emitting layer, and the common electrode over the active layer; and a second light-emitting element comprising a third pixel electrode, a second light-emitting layer over the third pixel electrode, and the common electrode over the second light-emitting layer, wherein the active layer comprises a first organic compound. ### Claim 14 (depends on 13) The display device according to claim 13, wherein the first light-emitting layer comprises a material that emits red light, and wherein the first organic compound absorbs light with a wavelength shorter than a wavelength of red light. ### Claim 15 (depends on 13) The display device according to claim 13, wherein the light-receiving element further comprises a first buffer layer between the first pixel electrode and the first light-emitting layer, wherein the first light-emitting element further comprises the first buffer layer between the second pixel electrode and the first light-emitting layer, and wherein the second light-emitting element further comprises a second buffer layer between the third pixel electrode and the second light-emitting layer. ### Claim 16 (depends on 13) The display device according to claim 13, wherein the display portion further comprises a third light-emitting element, and wherein the third light-emitting element comprises a fourth pixel electrode, a third light-emitting layer over the fourth pixel electrode, and the common electrode over the third light-emitting layer. ### Claim 17 (depends on 16) The display device according to claim 16, wherein the first light-emitting element emits light toward an outside of the display device through the common electrode, wherein the second light-emitting element emits light toward the outside of the display device through the common electrode, and wherein the third light-emitting element emits light toward the outside of the display device through the common electrode. ### Claim 18 (depends on 16) The display device according to claim 16, wherein the third light-emitting element emits blue light. ### Claim 19 (depends on 13) The display device according to claim 13, further comprising a first common layer, wherein the first common layer is between the first pixel electrode and the first light-emitting layer, between the second pixel electrode and the first light-emitting layer, and between the third pixel electrode and the second light-emitting layer. ### Claim 20 (depends on 19) The display device according to claim 19, further comprising a second common layer, wherein the second common layer is between the active layer and the common electrode, and between the second light-emitting layer and the common electrode. ### Claim 21 (depends on 13) The display device according to claim 13, wherein the display portion further comprises a bank, wherein the bank covers an end portion of the first pixel electrode and an end portion of the second pixel electrode, and wherein the bank is configured to electrically isolate the first pixel electrode and the second pixel electrode.