# US 2019/0172880 A1 · Organic light emitting diode device and manufacturing method thereof, display panel, and display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0172880 A1 - Document ID: US20190172880A1 - Status: Published application - Kind: A1 - Application number: 16/199,658 - Filed: 2018-11-26 - Published: 2019-06-06 - Earliest claimed: 2017-12-05 - Assignees: Boe Technology Group Co., Ltd.; Chengdu Boe Optoelectronics Technology Co., Ltd. - Applicants: BOE Technology Group Co., Ltd.; Chengdu BOE Optoelectronics Technology Co., Ltd. - Inventors: Weilong ZHOU - Web page: https://patentgrep.com/patent/US20190172880A1 ## CPC - H10K 59/124: Insulating layers formed between TFT elements and OLED elements - H10K 50/11: characterised by the electroluminescent [EL] layers - H10K 50/15: Hole transporting layers - H10K 59/122: Pixel-defining structures or layers, e.g. banks - H10K 59/123: Connection of the pixel electrodes to the thin film transistors [TFT] - H10K 59/38: comprising colour filters or colour changing media [CCM] - H10K 59/879: {comprising refractive means, e.g. lenses} - H10K 59/35: comprising red-green-blue [RGB] subpixels - H10K 2101/10: Triplet emission - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract The present disclosure provides an organic light emitting diode device and a manufacturing method thereof, a display panel and a display device. The organic light emitting diode device includes: a substrate; and a light emitting component and a first structural layer provided on a side of the substrate, wherein the light emitting component is provided on a side of the first structural layer distal to the substrate, and a surface area of a light emitting surface of the light emitting component is larger than an area of an orthographic projection of the light emitting component on the substrate. ## Claims ### Claim 1 An organic light emitting diode device, comprising: a substrate; and a light emitting component and a first structural layer provided on a side of the substrate, wherein the light emitting component is provided on a side of the first structural layer distal to the substrate, and a surface area of a light emitting surface of the light emitting component is larger than an area of an orthographic projection of the light emitting component on the substrate. ### Claim 2 (depends on 1) The organic light emitting diode device of claim 1, wherein the light emitting surface of the light emitting component comprises a curved surface recessed towards the substrate. ### Claim 3 (depends on 2) The organic light emitting diode device of claim 2, wherein the curved surface comprises a spherical-cap curved surface or a concave-convex curved surface which is constituted by a plurality of spherical-cap curved surfaces. ### Claim 4 (depends on 3) The organic light emitting diode device of claim 3, wherein a radius of a bottom circle of the spherical cap is r, a height of the spherical cap is H, and arctan(H/r) is an angle ranging from about 20° to about 40°. ### Claim 5 (depends on 1) The organic light emitting diode device of claim 1, wherein a surface of the first structural layer proximal to the light emitting component and a surface of the light emitting component proximal to the first structural layer have a same shape and are in contact with each other. ### Claim 6 (depends on 1) The organic light emitting diode device of claim 1, wherein a thickness of the first structural layer in a direction perpendicular to the substrate ranges from about 1 μm to about 4 μm. ### Claim 7 (depends on 5) The organic light emitting diode device of claim 5, wherein the first structural layer is a planarization layer, a pixel definition layer is further provided at the side of the first structural layer distal to the substrate, an orthographic projection of the pixel definition layer on the substrate does not overlap with an orthographic projection of the light emitting component on the substrate, the pixel definition layer comprises a plurality of pixel definition structures, the light emitting component is provided between adjacent pixel definition structures, and a region between the adjacent pixel definition structures defines the area of the orthographic projection of the light emitting component on the substrate. ### Claim 8 (depends on 7) The organic light emitting diode device of claim 7, wherein the organic light emitting diode device is of a top-emission type, an encapsulation layer is further provided on a side of the pixel definition structures distal to the substrate, and spacers are provided between the pixel definition structures and the encapsulation layer. ### Claim 9 (depends on 1) The organic light emitting diode device of claim 1, wherein the light emitting component comprises a cathode, an anode, and an organic light emitting material layer between the cathode and the anode. ### Claim 10 (depends on 9) The organic light emitting diode device of claim 9, wherein the light emitting component further comprises a hole injection layer, a hole transport layer, an electron transport layer and an electron injection layer. ### Claim 11 (depends on 9) The organic light emitting diode device of claim 9, wherein a thin film transistor is provided between the light emitting component and the substrate, the thin film transistor comprises an active layer, a gate, a source and a drain, and the drain is coupled to the anode. ### Claim 12 (depends on 1) The organic light emitting diode device of claim 1, wherein a light adjustment component is provided on a side of the light emitting component distal to the substrate, the light adjustment component is configured to convert light emitted from the light emitting component into parallel light, and to emit the parallel light out. ### Claim 13 (depends on 7) The organic light emitting diode device of claim 7, wherein the organic light emitting diode device is of a top-emission type, an encapsulation layer is further provided on a side of the pixel definition structures distal to the substrate, and spacers are provided between the pixel definition structures and the encapsulation layer, a light adjustment component is provided inside of the light emitting component, the light adjustment component is configured to convert light emitted from the light emitting component into parallel light, and to emit the parallel light out. ### Claim 14 (depends on 12) The organic light emitting diode device of claim 12, wherein the light adjustment component comprises a lens. ### Claim 15 (depends on 13) The organic light emitting diode device of claim 13, wherein the light adjustment component comprises a lens. ### Claim 16 A manufacturing method of an organic light emitting diode device, comprising steps of: forming a first structural layer on a side of a substrate; and forming a light emitting component on a side of the first structural layer distal to the substrate; wherein a surface area of a light emitting surface of the light emitting component is larger than an area of an orthographic projection of the light emitting component on the substrate. ### Claim 17 (depends on 16) The manufacturing method of an organic light emitting diode device of claim 16, wherein the step of forming the first structural layer comprises steps of: forming a planarization layer on a side of a substrate; and forming a curved surface recessed towards the substrate on a side of the planarization layer distal to the substrate, to obtain the first structural layer. ### Claim 18 (depends on 1) A display panel, comprising an organic light emitting diode device, wherein the organic light emitting diode device is the organic light emitting diode device of claim 1. ### Claim 19 (depends on 2) A display panel, comprising an organic light emitting diode device, wherein the organic light emitting diode device is the organic light emitting diode device of claim 2. ### Claim 20 (depends on 18) A display device, comprising an display panel, wherein the display panel is the display panel of claim 18.