# US 10,770,675 B2 · Organic light-emitting display device having an encapsulating substrate of high thermal conductivity > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,770,675 B2 - Document ID: US10770675B2 - Status: Granted - Kind: B2 - Application number: 16/133,307 - Filed: 2018-09-17 - Published: 2019-04-04 - Granted: 2020-09-08 - Earliest claimed: 2017-09-29 - Assignees: LG Display Co., Ltd. - Applicants: LG Display Co., Ltd. - Inventors: Tae-Ho Kim - Web page: https://patentgrep.com/patent/US10770675B2 ## CPC - H10K 59/8794: {Arrangements for heating and cooling} - H10K 50/11: characterised by the electroluminescent [EL] layers - H10K 59/122: Pixel-defining structures or layers, e.g. banks - H10K 59/38: comprising colour filters or colour changing media [CCM] - H10K 59/873: {Encapsulations} - H10K 59/874: {including getter material or desiccant} - H10D 86/423: {comprising semiconductor materials not belonging to the Group IV, e.g. InGaZnO} - H10D 86/60: wherein the TFTs are in active matrices - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES - H10D: INORGANIC ELECTRIC SEMICONDUCTOR DEVICES ## Abstract An organic light-emitting display device including an encapsulating layer and an encapsulating substrate disposed on the encapsulating layer is provided. The encapsulating layer may cover a light-emitting element. The encapsulating substrate may include a material having high thermal conductivity. A reinforcing member may overlap the light-emitting element between the encapsulating layer and the encapsulating substrate. Thus, in the organic light-emitting display device, the rigidity of the encapsulating substrate may be complemented by the reinforcing member. Thereby, the organic light-emitting display device may prevent damage of the light-emitting element due to external impact. ## Claims ### Claim 1 An organic light-emitting display device comprising: a device substrate including a display area and a non-display area; a light-emitting element on the display area of the substrate; an encapsulation layer overlying the light-emitting element, the encapsulation layer being in the display area; a bead holding encapsulation layer overlying a portion of the encapsulation layer, the bead holding encapsulation layer overlapping with the display area of the substrate; a plurality of metal beads within the bead holding encapsulation layer; and an encapsulating substrate overlying the bead holding encapsulation layer, wherein the metal beads within the bead holding encapsulation layer are comprised of a ferrous metal. ### Claim 2 (depends on 1) The organic light-emitting display device of claim 1 wherein the ferrous metal beads within the bead holding encapsulation layer are configured to be magnetically coupled to a jig for moving the device substrate during the manufacturing process. ### Claim 3 (depends on 1) The organic light-emitting display device of claim 1 wherein the bead holding encapsulation layer is laid out in pattern having a plurality of members, each of the members being spaced from each other at selected locations. ### Claim 4 (depends on 1) The organic light-emitting display device of claim 1 wherein the bead holding encapsulation layer further includes moisture-absorbing beads. ### Claim 5 (depends on 1) The organic light-emitting display device of claim 1 wherein the bead holding encapsulation layer further includes elastic beads, wherein the elastic beads include rubber or a polymer material. ### Claim 6 (depends on 1) The organic light-emitting display device of claim 1 further including a second bead holding encapsulation layer in the non-display area of the substrate. ### Claim 7 (depends on 6) The organic light-emitting display device of claim 6 wherein the second bead holding encapsulation layer includes a plurality of portions positioned in the non-display area, each of the portions being spaced from each other. ### Claim 8 An organic light-emitting display device comprising: a device substrate including a display area and a non-display area; a light-emitting element on the display area of the substrate; an encapsulation layer overlying the light-emitting element, the encapsulation layer being in the display area; a plurality of moisture absorbing beads positioned within the encapsulation layer; a bead holding encapsulation layer overlying a portion of the encapsulation layer, the bead holding encapsulation layer overlapping with the display area of the substrate; an encapsulating substrate overlying the bead holding encapsulation layer and the encapsulation layer; and metal beads within the bead holding encapsulation layer, wherein the metal beads within the bead holding encapsulation layer are comprised of a ferrous metal. ### Claim 9 (depends on 8) The organic light emitting display device of claim 8 further including: a plurality of members of the bead holding encapsulation layer being positioned in the non-display area, each of the members being spaced from each other. ### Claim 10 An organic light-emitting display device comprising: a device substrate including a display area and a non-display area disposed outside the display area; a light-emitting element on the display area of the device substrate; an encapsulating layer on the light-emitting element, the encapsulating layer being in the display area and also in the non-display area of the device substrate; an encapsulating substrate on the encapsulating layer; a first reinforcing member between the encapsulating layer and the encapsulating substrate, the first reinforcing member overlapping with the display area of the device substrate; and first metal beads within the first reinforcing member, wherein the first metal beads within the first reinforcing member are comprised of a ferrous metal. ### Claim 11 (depends on 10) The organic light-emitting display device according to claim 10, wherein the encapsulating layer covers a side surface of the first reinforcing member. ### Claim 12 (depends on 10) The organic light-emitting display device according to claim 10, further comprising a second reinforcing member between the encapsulating layer and the encapsulating substrate, the second reinforcing member overlapping the non-display area of the device substrate and being the second reinforcing member is spaced away from the first reinforced member. ### Claim 13 (depends on 12) The organic light-emitting display device according to claim 12, wherein a side surface of the second reinforcing member is covered by the encapsulating layer. ### Claim 14 (depends on 12) The organic light-emitting display device according to claim 12, wherein the second reinforcing member includes a plurality of portions being spaced away from each other. ### Claim 15 (depends on 10) The organic light-emitting display device according to claim 10, wherein the first reinforcing member includes a material that is the same as the encapsulating layer, and wherein the first reinforcing member is harder than the encapsulating layer. ### Claim 16 (depends on 10) The organic light-emitting display device according to claim 10, further including: a plurality of moisture-absorbing beads within the first reinforcing member. ### Claim 17 (depends on 16) The organic light-emitting display device according to claim 16, further including moisture-absorbing particles within the encapsulating layer, and wherein the density of the moisture-absorbing beads in the first reinforced member is lower than the density of the moisture-absorbing particles in the encapsulating layer. ### Claim 18 An organic light-emitting display device comprising: an encapsulating substrate on a device substrate; a light-emitting element on an upper surface of the device substrate facing the encapsulating substrate; a reinforcing member on a lower surface of the encapsulating substrate facing the device substrate; an encapsulating layer between the device substrate and the encapsulating substrate, the encapsulating layer surrounding the light-emitting element and the reinforcing member, and a plurality of metal beads within the reinforcing member, wherein the metal beads within the reinforcing member are comprised of a ferrous metal. ### Claim 19 (depends on 18) The organic light-emitting display device according to claim 18, further including aluminum within the encapsulating substrate. ### Claim 20 (depends on 15) The organic light-emitting display device according to claim 15, wherein the first reinforcing member includes an olefin-based material. ### Claim 21 (depends on 12) The organic light-emitting display device according to claim 12, further comprising second metal beads within the second reinforcing member, wherein the second metal beads within the second reinforcing member are comprised of a ferrous metal. ### Claim 22 (depends on 21) The organic light-emitting display device according to claim 21, wherein the second metal beads include the same material as the first metal beads.