# US 11,910,682 B2 · Display apparatus and multi display apparatus including the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,910,682 B2 - Document ID: US11910682B2 - Status: Granted - Kind: B2 - Application number: 17/138,708 - Filed: 2020-12-30 - Published: 2021-07-01 - Granted: 2024-02-20 - Earliest claimed: 2019-12-31 - Assignees: LG Display Co., Ltd. - Applicants: LG Display Co., Ltd. - Inventors: YoungHo Jeon; JongHyun Park; DongHee Yoo - Web page: https://patentgrep.com/patent/US11910682B2 ## CPC - G09F 9/302: characterised by the form or geometrical disposition of the individual elements - H10H 29/10: Integrated devices comprising at least one light-emitting semiconductor component covered by group H10H20/00 (active-matrix LED displays H10H29/30) - H10H 29/142: {Two-dimensional arrangements, e.g. asymmetric LED layout} - H10K 50/11: characterised by the electroluminescent [EL] layers - H10K 50/12: comprising dopants - H10K 50/19: Tandem OLEDs - H10K 59/131: Interconnections, e.g. wiring lines or terminals - H10K 59/18: Tiled displays - H10K 50/155: comprising dopants - H10K 50/156: {comprising a multilayered structure} - H10K 59/1315: {comprising structures specially adapted for lowering the resistance} - H10K 59/8731: {multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers} - H10K 59/88: Dummy elements, i.e. elements having non-functional features - H10K 2101/40: Interrelation of parameters between multiple constituent active layers or sublayers, e.g. HOMO values in adjacent layers - G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS - H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract A display apparatus includes a first substrate including a plurality of pixels provided in a display portion, a second substrate coupled to the first substrate, and a routing portion disposed on an outer surface of the first substrate and an outer surface of the second substrate. The second substrate includes a metal pattern layer connected to the routing portion and a rear insulation layer insulating the metal pattern layer and including an isolation pattern area. ## Claims ### Claim 1 A display apparatus, comprising: a first substrate including a plurality of pixels provided in a display portion; a second substrate coupled to the first substrate; and a routing assembly disposed adjacent to an outer surface of the first substrate and a corresponding outer surface of the second substrate, wherein the second substrate includes: a metal pattern layer connected to the routing assembly; and a rear insulation layer insulating the metal pattern layer and including a non-isolation pattern area overlapped with the metal pattern layer and an isolation pattern area that is different from the non-isolation pattern area, wherein the isolation pattern area has a thickness that is thinner than the non-isolation pattern area, and wherein the isolation pattern area is disposed between adjacent non-isolation pattern areas from a plan view. ### Claim 2 (depends on 1) The display apparatus of claim 1, wherein the non-isolation pattern area is configured to have a first thickness, wherein the isolation pattern area is configured to have a second thickness which is thinner than the first thickness, and the first thickness and the second thickness are a distance between a rear surface of the second substrate and an uppermost surface of the rear insulation layer. ### Claim 3 (depends on 1) The display apparatus of claim 1, wherein: the metal pattern layer includes a first metal layer and a second metal layer, the rear insulation layer includes a first insulation layer disposed between the first metal layer and the second metal layer, and a second insulation layer at least partially covering the second metal layer, and the isolation pattern area includes only one of the first insulation layer and the second insulation layer. ### Claim 4 (depends on 3) The display apparatus of claim 3, wherein each of the first insulation layer and the second insulation layer includes an inorganic material. ### Claim 5 (depends on 1) The display apparatus of claim 1, wherein the isolation pattern area includes a ladder shape, a mesh shape, or an island shape. ### Claim 6 (depends on 1) The display apparatus of claim 1, wherein the isolation pattern area includes: a first pattern area parallel to a first direction; and a plurality of second pattern areas protruding from one side of the first pattern area in parallel with a second direction transverse to the first direction. ### Claim 7 (depends on 1) The display apparatus of claim 1, wherein: the first substrate further includes a first pad part disposed in the display portion and connected to the routing assembly and the plurality of pixels, the first pad part is provided in each of outermost pixels among the plurality of pixels, and the outer surface of the first substrate is an end of the display portion. ### Claim 8 (depends on 1) The display apparatus of claim 1, further comprising: a first pad part disposed at one edge portion of the first substrate and connected to the routing assembly and the plurality of pixels; a second pad part disposed at a first rear edge portion of the second substrate overlapping the first pad part and connected to the routing assembly; a third pad part disposed apart from the second pad part, on a rear surface of the second substrate; and a link line portion electrically connected between the second pad part and the third pad part, wherein the metal pattern layer is configured to disposed on an area including the second pad part, the third pad part, and the link line portion. ### Claim 9 (depends on 8) The display apparatus of claim 8, wherein the isolation pattern area is disposed in a partial region among a region between a second rear edge portion of the second substrate and the third pad part, and wherein the second rear edge portion of the second substrate is parallel to the first rear edge portion of the second substrate. ### Claim 10 (depends on 1) A multi display apparatus, comprising: a plurality of display modules arranged in at least one direction of a first direction and a second direction transverse to the first direction, wherein each of the plurality of display modules includes the display apparatus of claim 1. ### Claim 11 (depends on 10) The multi display apparatus of claim 10, wherein two adjacent display modules contact each other through respective side surfaces of the two adjacent display modules, and a second interval between adjacent outermost pixels is equal to or less than a first interval between two adjacent pixels. ### Claim 12 (depends on 10) The multi display apparatus of claim 10, wherein: each of the plurality of display modules further includes a panel supporting member, and the panel supporting member includes: a supporting plate connected to a rear surface of the second substrate; and a plurality of fastening members disposed on a rear surface of the supporting plate, the plurality of fastening members being magnetized by a magnet. ### Claim 13 (depends on 3) The display apparatus of claim 3, wherein: the second insulation layer contacts a rear surface of the second substrate in the isolation pattern area from which the first insulating layer is removed, or wherein the second insulation layer is removed in the isolation pattern area. ### Claim 14 (depends on 1) The display apparatus of claim 1, wherein the non-isolation pattern area and the isolation pattern area are alternatingly disposed. ### Claim 15 (depends on 1) The display apparatus of claim 1, wherein the non-isolation pattern area includes a first non-isolation pattern area and a second non-isolation pattern area, and wherein the isolation pattern area is disposed between the first and second non-isolation pattern areas. ### Claim 16 (depends on 1) The display apparatus of claim 1, wherein the non-isolation pattern area includes a first non-isolation pattern area and a second non-isolation pattern area, and wherein the first non-isolation pattern area and the second non-isolation pattern area are spaced apart from each other by the isolation pattern area. ### Claim 17 A display apparatus, comprising: a first substrate including a plurality of pixels provided in a display portion; a second substrate coupled to the first substrate; and a routing assembly disposed adjacent to an outer surface of the first substrate and a corresponding outer surface of the second substrate, wherein the second substrate includes: a metal pattern layer connected to the routing assembly; and a rear insulation layer insulating the metal pattern layer and including an isolation pattern area, wherein: the metal pattern layer includes a first metal layer, a second metal layer, and a third metal layer, the rear insulation layer includes a first insulation layer disposed between the first metal layer and the second metal layer, a second insulation layer disposed between the second metal layer and the third metal layer, and a third insulation layer covering the third metal layer, and the isolation pattern area includes the third insulation layer and one of the first insulation layer and the second insulation layer. ### Claim 18 (depends on 17) The display apparatus of claim 17, wherein: each of the first insulation layer and the second insulation layer includes an inorganic material, and the third insulation layer includes an organic material. ### Claim 19 (depends on 17) The display apparatus of claim 17, wherein: the second insulation layer contacts a rear surface of the second substrate in the isolation pattern area from which the first insulating layer is removed, or wherein the second insulation layer is removed in the isolation pattern area. ### Claim 20 A display apparatus, comprising: a first substrate having thereon a plurality of pixels provided in a display area; a second substrate coupled to the first substrate; a metal pattern layer disposed on a first surface of the second substrate; and a rear insulation layer insulating the metal pattern layer, wherein the rear insulation layer includes: a first area overlapping with the metal pattern layer and including a multi inorganic layer structure; and a second area other than the first area and including a single inorganic layer structure, and wherein the second area is configured to have a thickness that is thinner than the first area. ### Claim 21 (depends on 20) The display apparatus of claim 20, wherein: the rear insulation layer in the first area has a first thickness, the rear insulation layer in the second area has a second thickness which is thinner than the first thickness, and the first thickness and the second thickness are a distance between the first surface of the second substrate and an uppermost surface of the rear insulation layer. ### Claim 22 (depends on 20) The display apparatus of claim 20, wherein: the metal pattern layer includes a first metal layer and a second metal layer, the rear insulation layer includes a first insulation layer disposed between the first metal layer and the second metal layer, and a second insulation layer at least partially covering the second metal layer, the second area includes only one of the first insulation layer and the second insulation layer, and each of the first insulation layer and the second insulation layer comprises an inorganic material. ### Claim 23 (depends on 20) The display apparatus of claim 20, wherein the second area includes a ladder shape, a mesh shape, or an island shape. ### Claim 24 (depends on 20) The display apparatus of claim 20, further comprising: a routing assembly disposed adjacent to an outer surface of the first substrate and a corresponding outer surface of the second substrate and connected to the metal pattern layer; a first pad part disposed at one edge portion of the first substrate and connected to the routing assembly and the plurality of pixels; a second pad part disposed at a first rear edge portion of the second substrate overlapping the first pad part and connected to the routing assembly; a third pad part disposed apart from the second pad part, on a rear surface of the second substrate; and a link line portion electrically connected between the second pad part and the third pad part, wherein the metal pattern layer is configured to disposed on the second pad part, the third pad part, and the link line portion. ### Claim 25 (depends on 24) The display apparatus of claim 24, wherein the second area is disposed in a partial region among a region between a second rear edge portion of the second substrate and the third pad part, and wherein the second rear edge portion of the second substrate is parallel to the first rear edge portion of the second substrate. ### Claim 26 (depends on 22) The display apparatus of claim 22, wherein: the second insulation layer contacts the first surface of the second substrate in the second area from which the first insulating layer is removed, or wherein the second insulation layer is removed in the second area.