# US 10,770,525 B2 · Organic light-emitting display panel, display device, and fabrication method thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,770,525 B2 - Document ID: US10770525B2 - Status: Granted - Kind: B2 - Application number: 16/222,516 - Filed: 2018-12-17 - Published: 2020-02-13 - Granted: 2020-09-08 - Earliest claimed: 2018-08-10 - Assignees: Shanghai Tianma Micro-Electronics Co., Ltd. - Applicants: Shanghai Tianma Micro-Electronics Co., Ltd. - Inventors: Wenxin Jiang; Jiaxin Li; Guofeng Zhang; Hua Gong; Canjun Xiao - Web page: https://patentgrep.com/patent/US10770525B2 ## CPC - H10K 59/122: Pixel-defining structures or layers, e.g. banks - H10K 59/131: Interconnections, e.g. wiring lines or terminals - H10K 59/873: {Encapsulations} - H10K 59/1201: {Manufacture or treatment} - H10K 59/87: {Passivation; Containers; Encapsulations} - H10K 71/166: {using selective deposition, e.g. using a mask} - H10K 2102/351: {Thickness} - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract An organic light-emitting display panel, divided into a display region and a non-display region surrounding the display region, includes a substrate; an array layer formed over the substrate; a pixel defining layer formed on the surface of the array layer away from the substrate; and a plurality of organic light-emitting devices formed in a plurality of openings of the pixel defining layer. The plurality of organic light-emitting devices are disposed in the display region, and each organic light-emitting device includes an anode, an organic light-emitting layer, and a cathode sequentially formed on the substrate. The organic light-emitting display panel also includes a plurality of support units disposed in the non-display region. At least one support unit of the plurality of support units is disposed on the surface of the pixel defining layer away from the substrate. ## Claims ### Claim 1 An organic light-emitting display panel, divided into a display region and a non-display region surrounding the display region, and comprising: a substrate; an array layer formed over the substrate; a pixel defining layer formed on a surface of the array layer away from the substrate; a plurality of organic light-emitting devices formed in a plurality of openings of the pixel defining layer, wherein the plurality of organic light-emitting devices are disposed in the display region, and each organic light-emitting device includes an anode, an organic light-emitting layer, and a cathode sequentially formed on the substrate in a direction away from the substrate; a plurality of support units disposed in the non-display region, wherein at least one support unit of the plurality of support units is disposed on a surface of the pixel defining layer away from the substrate, wherein: in the non-display region, the pixel defining layer includes a plurality of island structures isolated from each other, and at least one support unit of the support units is disposed on the plurality of island structures. ### Claim 2 (depends on 1) The organic light-emitting display panel according to claim 1, wherein: a quantity of the plurality of support units is smaller than a quantity of the plurality of island structures. ### Claim 3 (depends on 1) The organic light-emitting display panel according to claim 1, further including: an auxiliary conductive layer disposed in the non-display region, wherein the auxiliary conductive layer is in a same layer as the anode, and the cathode is in contact with the anode through a spacing between the plurality of island structures. ### Claim 4 (depends on 1) The organic light-emitting display panel according to claim 1, wherein: in a direction perpendicular to the substrate, a thickness of the plurality of island structures is larger than a thickness of the pixel defining layer in the display region. ### Claim 5 (depends on 1) The organic light-emitting display panel according to claim 1, wherein: a minimum straight-line distance from a support unit, among the plurality of support units, to an edge of the display region is in a range of approximately 50 μm to 150 μm. ### Claim 6 (depends on 1) A display device, comprising the organic light-emitting display panel according to claim 1. ### Claim 7 An organic light-emitting display panel, divided into a display region and a non-display region surrounding the display region, and comprising: a substrate; an array layer formed over the substrate; a pixel defining layer formed on a surface of the array layer away from the substrate; a plurality of organic light-emitting devices formed in a plurality of openings of the pixel defining layer, wherein the plurality of organic light-emitting devices are disposed in the display region, and each organic light-emitting device includes an anode, an organic light-emitting layer, and a cathode sequentially formed on the substrate in a direction away from the substrate; a plurality of support units disposed in the non-display region, wherein at least one support unit of the plurality of support units is disposed on a surface of the pixel defining layer away from the substrate, wherein: the plurality of support units include a plurality of first support units located within a region covered by an orthogonal projection of the cathode on the substrate, and a plurality of second support units located outside the region covered by the orthogonal projection of the cathode on the substrate. ### Claim 8 (depends on 7) The organic light-emitting display panel according to claim 7, wherein: a minimum straight-line distance from a second support unit, among the plurality of second support units, to an edge of the display region is in a range of approximately 50 μm to 150 μm; a maximum straight-line distance from a second support unit, among the plurality of second support units, to the edge of the display region is smaller than or equal to 250 μm; and a minimum straight-line distance from a first support unit, among the plurality of first support units, to the edge of the display region is in a range of approximately 250 μm to 350 μm. ### Claim 9 (depends on 7) The organic light-emitting display panel according to claim 7, wherein: in a direction perpendicular to the substrate, a height of the plurality of first support units is larger than a height of the plurality of second support units. ### Claim 10 (depends on 7) The organic light-emitting display panel according to claim 7, further including: a plurality of main support pillars disposed in the display region and on the surface of the pixel defining layer away from the substrate, wherein: in a direction perpendicular to the substrate, a height of the plurality of support units is smaller than a height of the plurality of main support pillars. ### Claim 11 (depends on 7) The organic light-emitting display panel according to claim 7, further including: a retaining wall disposed in the non-display region, wherein: the retaining wall is formed on a surface of the array layer away from the substrate and surrounds the display region; and at least one support unit of the plurality of support units is formed on a surface of the retaining wall away from the substrate. ### Claim 12 (depends on 7) The organic light-emitting display panel according to claim 7, wherein: the plurality of support units include a plurality of third support units and a plurality of fourth support units, wherein a height of the plurality of third support units is larger than a height of the plurality of fourth support units. ### Claim 13 (depends on 12) The organic light-emitting display panel according to claim 12, wherein: the plurality of third support units and the plurality of fourth support units are alternately arranged along a linear path from an edge of the display region to an edge of the organic light-emitting display panel. ### Claim 14 (depends on 1) The organic light-emitting display panel according to claim 1, further including a packaging layer formed to fully cover the plurality of organic light-emitting devices.