# US 10,772,227 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 10,772,227 B2 - Document ID: US10772227B2 - Status: Granted - Kind: B2 - Application number: 16/454,696 - Filed: 2019-06-27 - Published: 2020-02-13 - Granted: 2020-09-08 - Earliest claimed: 2018-08-07 - Assignees: LG Electronics Inc. - Applicants: LG Electronics Inc. - Inventors: Chanwoo Kim; Jungyul Sakong; Dongwoo Cho - Web page: https://patentgrep.com/patent/US10772227B2 ## CPC - H10K 59/8722: {Peripheral sealing arrangements, e.g. adhesives, sealants} - B32B 7/14: applied in spaced arrangements, e.g. in stripes - B32B 27/08: of synthetic resin - B32B 27/36: comprising polyesters - B32B 27/40: comprising polyurethanes - G06F 1/1637: {Details related to the display arrangement, including those related to the mounting of the display in the housing} - H05K 5/03: Covers - H05K 7/20963: {Heat transfer by conduction from internal heat source to heat radiating structure (H05K7/20972 takes precedence)} - H10K 59/126: Shielding, e.g. light-blocking means over the TFTs - B32B 2307/402: Coloured - B32B 2457/20: Displays, e.g. liquid crystal displays, plasma displays - H10K 59/871: {Self-supporting sealing arrangements} - H10K 59/8794: {Arrangements for heating and cooling} - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ## Abstract A display device including a display panel; a module cover configured to cover a back surface of the display panel; a first adhesive member adhered to an edge of a front surface of the module cover facing the display panel and configured to adhere the module cover and the display panel; and a second adhesive member adhered to an inner area of the module cover inside the edge of the front surface and configured to adhere the module cover and the display panel. In addition, the first adhesive member includes a first base layer; and a pair of acrylic adhesive layers located at opposite sides of the first base layer and respectively adhered to the display panel and the module cover. Further, the second adhesive member includes a second base layer; a urethane adhesive layer located at one side of the second base layer and adhered to the display panel; and an acrylic adhesive layer located at the other side of the second base layer, adhered to the module cover and having a greater adhesive strength than the urethane adhesive layer. ## Claims ### Claim 1 A display device comprising: a display panel; a module cover configured to cover a back surface of the display panel; a first adhesive member adhered to an edge of a front surface of the module cover facing the display panel and configured to adhere the module cover and the display panel; and a second adhesive member adhered to an inner area of the module cover inside the edge of the front surface and configured to adhere the module cover and the display panel, wherein the first adhesive member includes: a first base layer; and a pair of acrylic adhesive layers located at opposite sides of the first base layer and respectively adhered to the display panel and the module cover, and wherein the second adhesive member includes: a second base layer; a urethane adhesive layer located at one side of the second base layer and adhered to the display panel; and an acrylic adhesive layer located at another side of the second base layer, adhered to the module cover and having a greater adhesive strength than the urethane adhesive layer. ### Claim 2 (depends on 1) The display device of claim 1, wherein the first adhesive member further includes a first film between the first base layer and a first acrylic adhesive layer of the pair of acrylic adhesive layers adhered to the display panel, and includes a second film between the first base layer and a second acrylic adhesive layer of the pair of acrylic adhesive layers adhered to the module cover. ### Claim 3 (depends on 2) The display device of claim 2, wherein a first interfacial adhesive strength between the first film and the first acrylic adhesive layer is greater than a second interfacial adhesive strength between the first acrylic adhesive layer and the display panel. ### Claim 4 (depends on 3) The display device of claim 3, wherein a third interfacial adhesive strength between the second film and the second acrylic adhesive layer is greater than a fourth interfacial adhesive strength between the second acrylic adhesive layer and the module cover. ### Claim 5 (depends on 2) The display device of claim 2, wherein a thickness of the first base layer is greater than that of each of the first acrylic adhesive layer, the second acrylic adhesive layer, the first film and the second film. ### Claim 6 (depends on 2) The display device of claim 2, wherein the first film and the second film have different coefficients of extension. ### Claim 7 (depends on 2) The display device of claim 2, wherein any one of the first film and the second film includes thermoplastic poly urethane (TPU) and another of the first film and the second film includes polyethyleneterephthalate (PET). ### Claim 8 (depends on 2) The display device of claim 2, wherein at least one of the first film or the second film has a black layer laminated thereon. ### Claim 9 (depends on 2) The display device of claim 2, wherein the first base layer includes polyurethane foam. ### Claim 10 (depends on 2) The display device of claim 2, wherein the first adhesive member further includes an auxiliary adhesive layer between the first film and the first base layer to attach the first film to the first base layer. ### Claim 11 (depends on 1) The display device of claim 1, wherein a thickness of the second base layer is greater than a thickness of the first base layer. ### Claim 12 (depends on 1) The display device of claim 1, wherein the second base layer includes acrylic foam. ### Claim 13 (depends on 1) The display device of claim 1, wherein an adhesive strength of the urethane adhesive layer adhered to the display panel is less than that of the acrylic adhesive layer adhered to the module cover. ### Claim 14 (depends on 13) The display device of claim 13, wherein the adhesive strength of the urethane adhesive layer is less than that of the acrylic adhesive layer. ### Claim 15 (depends on 1) The display device of claim 1, wherein the second adhesive member further includes a film located between the second base layer and the urethane adhesive layer. ### Claim 16 (depends on 15) The display device of claim 15, wherein a thickness of the second base layer is greater than that of each of the urethane adhesive layer, the acrylic adhesive layer and the film. ### Claim 17 (depends on 1) The display device of claim 1, wherein the module cover includes: a cover body located behind the display panel and having the first adhesive member and the second adhesive member adhered thereto; and a cover circumferential portion protruding forwardly from a circumference of the cover body to surround an outer circumference of the display panel. ### Claim 18 (depends on 1) The display device of claim 1, wherein the module cover includes: a heat dissipation plate located behind the display panel and having the first adhesive member and the second adhesive member adhered thereto; a cover body located behind the heat dissipation plate; and a cover circumferential portion protruding forwardly from a circumference of the cover body to surround an outer circumference of the display panel and the heat dissipation plate. ### Claim 19 A display device comprising: a display panel; a module cover configured to cover a back surface of the display panel; an acrylic adhesive member adhered to an edge of a front surface of the module cover facing the display panel and configured to adhere the module cover and the display panel; and a urethane adhesive member adhered to an inner area of the module cover inside the edge of the front surface and configured to adhere the module cover and the display panel, wherein an adhesive strength of the urethane adhesive layer is less than that of the acrylic adhesive layer. ### Claim 20 (depends on 19) The display device of claim 19, wherein the acrylic adhesive member includes a foam based layer configured to be cut when a suction mechanism pulls the display panel from the module cover to create a gap between the display panel and the module cover.