# US 12,765,181 B2 · 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 12,765,181 B2 - Document ID: US12765181B2 - Status: Granted - Kind: B2 - Application number: 18/489,979 - Filed: 2023-10-19 - Published: 2024-04-25 - Granted: 2026-10-13 - Earliest claimed: 2022-10-21 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., Ltd. - Inventors: Sungjin Hong; Yoomin Ko; Sunho Kim; Hyewon Kim; Juchan Park; Pilsuk Lee; Chung Sock Choi - Web page: https://patentgrep.com/patent/US12765181B2 ## CPC - H10K 59/122: Pixel-defining structures or layers, e.g. banks - H10K 50/822: characterised by their shape - H10K 50/844: Encapsulations - H10K 59/131: Interconnections, e.g. wiring lines or terminals - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract A display device includes a display panel including a first region, a second region, and a third region. The display panel includes a plurality of light emitting devices disposed in the first electrode, and each including a first electrode, an intermediate layer disposed on the first electrode, and a second electrode disposed on the intermediate layer, a separator including a pixel boundary portion disposed in the first region, a peripheral partition portion disposed in the second region, and a peripheral boundary portion disposed in the first region and the third region, and a plurality conductive pattern layers disposed in the second region. A plurality of second electrodes of the plurality of light emitting devices are electrically separated by the pixel boundary portion, and the plurality of conductive pattern layers are electrically separated by the peripheral partition portion. ## Claims ### Claim 1 A display device comprising: a display panel including a display region and a peripheral region surrounding the display region, the display panel including: a first region overlapping the display region, a second region overlapping a portion of the peripheral region, and a third region overlapping another portion of the peripheral region and disposed between the first region and the second region, wherein the display panel includes: a plurality of light emitting devices disposed in the first region, each of the plurality of light emitting devices including: a first electrode, an intermediate layer disposed on the first electrode, and a second electrode disposed on the intermediate layer; a separator including: a pixel boundary portion disposed in the first region, a peripheral partition portion disposed in the second region, and a peripheral boundary portion disposed in the first region and the third region; and a plurality of conductive pattern layers disposed in the second region, a plurality of second electrodes of the plurality of light emitting devices are electrically separated by the pixel boundary portion, and the plurality of conductive pattern layers are electrically separated by the peripheral partition portion. ### Claim 2 (depends on 1) The display device of claim 1, wherein the display panel further comprises a pixel definition film defining a light emitting opening which exposes at least a portion of the first electrode, and the pixel boundary portion, the peripheral boundary portion, and the peripheral partition portion are disposed on the pixel definition film. ### Claim 3 (depends on 2) The display device of claim 2, wherein The plurality of second electrodes and the plurality of conductive pattern layers comprise a same material, and the plurality of second electrodes and the plurality of conductive pattern layers are disposed on the pixel definition film. ### Claim 4 (depends on 1) The display device of claim 1, wherein the display panel further comprises a base layer, and a plurality of insulation layers disposed on the base layer, and a plurality of voltage lines for transmitting different voltages are disposed on at least one of the base layer and the plurality of insulation layers in the second region. ### Claim 5 (depends on 4) The display device of claim 4, wherein each of the plurality of conductive pattern layers is electrically connected to at least one of the plurality of voltage lines. ### Claim 6 (depends on 1) The display device of claim 1, wherein the peripheral partition portion comprises a plurality of peripheral partition portions protruding and extending from the peripheral boundary portion. ### Claim 7 (depends on 6) The display device of claim 6, wherein the peripheral boundary portion comprises: a first side extending in a first direction, and a second side intersecting the first direction, and each of the plurality of peripheral partition portions extends from at least one of the first side and the second side of the peripheral boundary portion. ### Claim 8 (depends on 7) The display device of claim 7, wherein each of the plurality of peripheral partition portions extends from the first side of the peripheral boundary portion in a direction parallel to the first direction. ### Claim 9 (depends on 7) The display device of claim 7, wherein some of the plurality of peripheral partition portions protrude and extend from the first side of the peripheral boundary portion in a direction parallel to a second direction intersecting the first direction, and others of the plurality of peripheral partition portions protrude and extend from the second side of the peripheral boundary portion in a direction parallel to the first direction. ### Claim 10 (depends on 1) The display device of claim 1, wherein the peripheral partition portion comprises: a plurality of first sub-peripheral partition portions extending in a first direction, and disposed spaced apart in a second direction intersecting the first direction; and a plurality of second sub-peripheral partition portions extending in the second direction, and disposed spaced apart in the first direction. ### Claim 11 (depends on 10) The display device of claim 10, wherein the plurality of first sub-peripheral partition portions intersect the plurality of second sub-peripheral partition portions. ### Claim 12 (depends on 1) The display device of claim 1, wherein the peripheral partition portion comprises a first sub-peripheral partition portion surrounding the peripheral boundary portion. ### Claim 13 (depends on 12) The display device of claim 12, wherein the peripheral partition portion further comprises a second sub-peripheral partition portion surrounding the first sub-peripheral partition portion. ### Claim 14 (depends on 1) The display device of claim 1, wherein the separator includes a multi-layered member including at least one of an organic material, a metal, or a transparent electrode. ### Claim 15 (depends on 1) The display device of claim 1, wherein the display panel further comprises: a plurality of transistors; and a plurality of connection wirings that connect the plurality of light emitting devices and the plurality of transistors, respectively, and each of the plurality of connection wirings includes: a first connection part connected to a corresponding light emitting device among the plurality of light emitting devices, and spaced apart from a light emitting opening in which the corresponding light emitting device is defined in a plan view; and a second connection part connected to a corresponding transistor among the plurality of transistors. ### Claim 16 (depends on 15) The display device of claim 15, wherein each of the plurality of connection wirings comprises a first layer, a second layer, and a third layer, a side surface of the third layer forms a tip part protruding from a side surface of the second layer, and the second electrode is disconnected by the tip part. ### Claim 17 (depends on 15) The display device of claim 15, wherein each of the plurality of transistors is an N-type oxide semiconductor. ### Claim 18 A display panel comprising: a base layer including a display region and a peripheral region surrounding the display region, the base layer including: a first region overlapping the display region, a second region overlapping a portion of the peripheral region, and a third region overlapping another portion of the peripheral region and disposed between the first region and the second region; a first light emitting device disposed on the first region of the base layer, the first light emitting device including: a first anode electrode, a first intermediate layer disposed on the first anode electrode, and a first cathode electrode disposed on the first intermediate layer; a second light emitting device disposed on the first region of the base layer, the second light emitting device including: a second anode electrode, a second intermediate layer disposed on the second anode electrode, and a second cathode electrode disposed on the second intermediate layer; a plurality of conductive pattern layers disposed in the second region; a pixel boundary portion disposed in the first region, and separating the first cathode electrode and the second cathode electrode; a peripheral partition portion disposed in the second region, and separating the plurality of conductive pattern layers; and a peripheral boundary portion disposed in the first region and in the third region. ### Claim 19 (depends on 18) The display panel of claim 18, wherein the first cathode electrode, the second cathode electrode, and the plurality of conductive pattern layers comprise a same material. ### Claim 20 (depends on 18) The display panel of claim 18, further comprising: a plurality of insulation layers disposed on the base layer, wherein a plurality of voltage lines for transmitting different voltages are disposed on at least one of the base layer and the plurality of insulation layers in the second region. ### Claim 21 (depends on 20) The display panel of claim 20, wherein each of the plurality of conductive pattern layers is electrically connected to at least one of the plurality of voltage lines. ### Claim 22 (depends on 18) The display panel of claim 18, wherein the peripheral partition portion comprises a plurality of peripheral partition portions protruding and extending from the peripheral boundary portion. ### Claim 23 (depends on 22) The display panel of claim 22, wherein the peripheral boundary portion comprises: a first side extending in a first direction, and a second side intersecting the first direction, and each of the plurality of peripheral partition portions extends from at least one of the first side and the second side of the peripheral boundary portion. ### Claim 24 (depends on 23) The display panel of claim 23, wherein each of the plurality of peripheral partition portions extends from the first side of the peripheral boundary portion in the first direction. ### Claim 25 (depends on 23) The display panel of claim 23, wherein some of the plurality of peripheral partition portions protrude and extend from the first side of the peripheral boundary portion in a direction parallel to a second direction intersecting the first direction, and others of the plurality of peripheral partition portions protrude and extend from the second side of the peripheral boundary portion in a direction parallel to the first direction. ### Claim 26 (depends on 18) The display panel of claim 18, wherein the peripheral partition portion comprises: a plurality of first sub-peripheral partition portions extending in a first direction, and disposed spaced apart in a second direction intersecting the first direction; and a plurality of second sub-peripheral partition portions extending in the second direction, and disposed spaced apart in the first direction, and the plurality of first sub-peripheral partition portions intersect the plurality of second sub-peripheral partition portions. ### Claim 27 (depends on 18) The display panel of claim 18, wherein the peripheral partition portion comprises: first sub-peripheral partition portions surrounding the peripheral boundary portion, and second sub-peripheral partition portions surrounding the first sub-peripheral partition portions. ### Claim 28 An electronic device comprising: a display region and a peripheral region surrounding the display region, the electronic device including: a first region overlapping the display region, a second region overlapping a portion of the peripheral region, and a third region overlapping another portion of the peripheral region and disposed between the first region and the second region; a plurality of light emitting devices disposed in the first region, each of the plurality of light emitting devices including a plurality of cathode electrodes; a plurality of conductive pattern layers disposed in the second region; a pixel boundary portion disposed in the first region, and electrically separating the plurality of cathode electrodes; a peripheral partition portion disposed in the second region, and separating the plurality of conductive pattern layers; and a plurality of voltage lines that provide a voltage to the plurality of light emitting devices, wherein each of the plurality of conductive pattern layers is electrically connected to a corresponding one of the plurality of voltage lines.