# US 10,312,469 B2 · Display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,312,469 B2 - Document ID: US10312469B2 - Status: Granted - Kind: B2 - Application number: 15/863,745 - Filed: 2018-01-05 - Published: 2019-02-07 - Granted: 2019-06-04 - Earliest claimed: 2017-08-01 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., Ltd. - Inventors: Hyunae Park; Wonkyu Kwak; Jieun Lee - Web page: https://patentgrep.com/patent/US10312469B2 ## CPC - H10K 59/12: Active-matrix OLED [AMOLED] displays - H10K 59/122: Pixel-defining structures or layers, e.g. banks - H10K 59/124: Insulating layers formed between TFT elements and OLED elements - H10K 59/8731: {multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers} - H10K 77/111: {Flexible substrates} - H10K 2102/311: {Flexible OLED} - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract A display device includes: a substrate including a display area and a non-display area outside the display area; a display unit arranged in the display area of the substrate; an inorganic insulating film arranged on the substrate over the display area and the non-display area; a first organic insulating film arranged on the inorganic insulating film and having a first opening extending in a first direction so as to correspond to at least a portion of the non-display area, a planar shape of an end of the first opening having a concavo-convex shape; and an encapsulation unit arranged on the display unit to cover the display unit. ## Claims ### Claim 1 A display device comprising: a substrate comprising a display area and a non-display area outside the display area; a display unit arranged in the display area of the substrate; an inorganic insulating film arranged on the substrate over the display area and the non-display area; a first organic insulating film arranged on the inorganic insulating film and having a first opening extending in a first direction so as to correspond to at least a portion of the non-display area, wherein a planar shape of an end of the first opening has a concavo-convex shape; and an encapsulation unit arranged on the display unit to cover the display unit. ### Claim 2 (depends on 1) The display device of claim 1, wherein the first opening has a first end adjacent to the display area and extending in the first direction, and a second end facing the first end, wherein a planar shape of the second end has the concavo-convex shape. ### Claim 3 (depends on 2) The display device of claim 2, wherein the second end has a protruding portion and a recess portion arranged alternately and continuously, wherein the protruding portion or the recess portion is protruded or recessed in a second direction crossing the first direction. ### Claim 4 (depends on 3) The display device of claim 3, wherein a distance from the protruding portion to the first end is less than a distance from the recess portion to the first end. ### Claim 5 (depends on 2) The display device of claim 2, wherein the encapsulation unit is configured to cover the first end of the first opening. ### Claim 6 (depends on 5) The display device of claim 5, wherein the first opening is configured to expose a first area of the inorganic insulating film, and the encapsulation unit is configured to directly contact at least a portion of the first area. ### Claim 7 (depends on 2) The display device of claim 2, further comprising a second organic insulating film arranged on the first organic insulating film and having a second opening corresponding to the first opening, wherein a shape of an end of the second opening corresponding to a second end of the first organic insulating film defining the second end of the first opening follows a shape of the second end of the first organic insulating film. ### Claim 8 (depends on 7) The display device of claim 7, wherein the second organic insulating film is configured to cover the second end of the first organic insulating film. ### Claim 9 (depends on 7) The display device of claim 7, further comprising a third organic insulating film arranged on the second organic insulating film and having a third opening corresponding to the second opening, wherein a shape of an end of the third opening corresponding to the second end of the first organic insulating film follows the shape of the second end of the first organic insulating film. ### Claim 10 (depends on 9) The display device of claim 9, wherein an end of the third organic insulating film coincides with an end of the second organic insulating film. ### Claim 11 (depends on 9) The display device of claim 9, wherein a width of the third opening of the third organic insulating film is greater than a width of the first opening of the first organic insulating film. ### Claim 12 (depends on 9) The display device of claim 9, further comprising a fourth organic insulating film between the first organic insulating film and the second organic insulating film and having a fourth opening corresponding to the first opening. ### Claim 13 (depends on 12) The display device of claim 12, wherein an end of the fourth organic insulating film coincides with the second end of the first organic insulating film. ### Claim 14 (depends on 12) The display device of claim 12, wherein the second organic insulating film is configured to cover the second end of the first organic insulating film and an end of the fourth organic insulating film. ### Claim 15 (depends on 12) The display device of claim 12, wherein an end of the third organic insulating film coincides with an end of the second organic insulating film. ### Claim 16 (depends on 12) The display device of claim 12, wherein a width of the third opening of the third organic insulating film is greater than a width of the first opening of the first organic insulating film. ### Claim 17 (depends on 9) The display device of claim 9, wherein the display unit comprises a thin-film transistor and a pixel electrode electrically connected to the thin-film transistor, and the first organic insulating film is configured to cover the thin-film transistor and is between the thin-film transistor and the pixel electrode. ### Claim 18 (depends on 17) The display device of claim 17, wherein the second organic insulating film is configured to cover an edge of the pixel electrode to define a pixel area. ### Claim 19 (depends on 2) The display device of claim 2, wherein a slope of the second end is gentler than a slope of the first end. ### Claim 20 A display device comprising: a substrate comprising a display area and a non-display area outside the display area; an inorganic insulating unit comprising at least one inorganic insulating film arranged on the substrate over the display area and the non-display area; and an organic insulating unit arranged on the inorganic insulating unit and comprising at least one organic insulating film, and having an opening extending in a first direction so as to correspond to at least a portion of the non-display area, wherein the opening has a first end adjacent to the display area and extending in the first direction and a second end facing the first end and spaced apart from the first end in a second direction crossing the first direction, wherein, in a plan view, the second end has a protruding portion and a recess portion arranged alternately and continuously along the first direction, the protruding portion being protruded relative to the recess portion in the second direction.