# US 8,772,797 B2 · Display device with step configuration in the insulating layer > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,772,797 B2 - Document ID: US8772797B2 - Status: Granted - Kind: B2 - Application number: 13/206,762 - Filed: 2011-08-10 - Published: 2012-02-23 - Granted: 2014-07-08 - Earliest claimed: 2010-08-17 - Assignees: Sony Corporation - Applicants: Hiroshi Sagawa - Inventors: Hiroshi Sagawa - Web page: https://patentgrep.com/patent/US8772797B2 ## CPC - H10F 39/807: {Pixel isolation structures} - H10H 20/813: having a plurality of light-emitting regions, e.g. multi-junction LEDs or light-emitting devices having photoluminescent regions within the bodies - H10H 20/83: Electrodes - H10H 20/84: Coatings, e.g. passivation layers or antireflective coatings - H10H 20/8512: {Wavelength conversion materials} - H10H 20/8514: {characterised by their shape, e.g. plate or foil} - H10H 20/856: Reflecting means - H10H 29/142: {Two-dimensional arrangements, e.g. asymmetric LED layout} - H10K 50/11: characterised by the electroluminescent [EL] layers - H10K 59/122: Pixel-defining structures or layers, e.g. banks - H10K 59/124: Insulating layers formed between TFT elements and OLED elements - H10K 59/131: Interconnections, e.g. wiring lines or terminals - H10K 59/35: comprising red-green-blue [RGB] subpixels - H10K 59/352: {the areas of the RGB subpixels being different} - H10K 59/80522: {combined with auxiliary electrodes} - H10F 77/413: {directly associated or integrated with the devices, e.g. back reflectors (directly associated or integrated with photovoltaic cells H10F77/42)} - H10K 50/125: specially adapted for multicolour light emission, e.g. for emitting white light - H10K 59/1201: {Manufacture or treatment} - H10K 59/123: Connection of the pixel electrodes to the thin film transistors [TFT] - H10K 59/8051: {Anodes} - H10W 90/00: Package configurations - H10F: INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION - H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES - H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10 ## Abstract A display device includes: a substrate; a plurality of light-emission elements arranged, on the substrate, in a first direction and a second direction intersecting each other, each of the light-emission elements having a first electrode layer, an organic layer including a luminous layer, and a second electrode layer which are laminated in that order; and a separation section disposed, on the substrate, between the light-emission elements adjacent to each other in the first direction, the separation section having two or more pairs of steps. The first electrode layers in the light-emission elements are separated from each other, and the organic layers as well as the second electrode layers in the light-emission elements adjacent to each other in the first direction are separated from each other by the steps included in the separation section. ## Claims ### Claim 1 A display device comprising: a substrate; a plurality of light-emission elements arranged, on the substrate, in a first direction and a second direction intersecting each other, each of the light-emission elements including a first electrode layer, an organic layer including a light-emission layer, and a second electrode; and a separation member disposed, on the substrate, between the light-emission elements adjacent to each other in the first direction, the separation member having two or more pairs of steps, wherein the first electrode layers in the light-emission elements are separated from each other, and the organic layers and the second electrode layers are separated from each other by the steps. ### Claim 2 (depends on 1) The display device according to claim 1, wherein the second electrode layers are disposed in accordance with alignment of the light-emission elements in the second direction. ### Claim 3 (depends on 2) The display device according to claim 2, wherein the light-emission elements aligned in the first direction are configured to emit light of different colors. ### Claim 4 (depends on 3) The display device according to claim 3, wherein the light-emission elements includes a plurality of red light-emission elements, a plurality of green light-emission elements, and a plurality of blue light-emission elements, wherein the red light-emission element, the green light-emission element, and the blue light-emission element are arranged, in that order, repeatedly in the first direction. ### Claim 5 (depends on 2) The display device according to claim 2, wherein the light-emission elements aligned in the second direction are configured to emit light of the same colors. ### Claim 6 (depends on 2) The display device according to claim 2, wherein the second electrode layers in the light-emission elements adjacent to each other in the second direction are combined with each other. ### Claim 7 (depends on 6) The display device according to claim 6, wherein the second electrode layers in the light-emission elements adjacent to each other in the second direction are combined with each other in a same level of layer. ### Claim 8 (depends on 2) The display device according to claim 2, wherein the steps are formed by a projection-depression portion foamed as part of an insulating layer to separate the first electrode layers adjacent to each other, from each other. ### Claim 9 (depends on 8) The display device according to claim 8, wherein the projection-depression portion of the insulating layer has a film surface and a wall surface which intersect at an acute angle. ### Claim 10 (depends on 8) The display device according to claim 8, wherein the insulating layer has, at each of outermost edges thereof, a film surface and a wall surface which intersect at an acute angle. ### Claim 11 (depends on 2) The display device according to claim 2, wherein a maximum distance in a thickness direction between a position of a film surface of the insulating layer and a position of a film surface of the first electrode layer is larger than a total thickness of the organic layer and the second electrode layer. ### Claim 12 An organic EL light-emitting device comprising: a substrate; a plurality of light-emission elements arranged, on the substrate, in a first direction, each of the light-emission elements including a first electrode layer, an organic layer including a light-emission layer, and a second electrode; and a separation member disposed, on the substrate, between the light-emission elements adjacent to each other in the first direction, the separation member having two or more pairs of steps, wherein the first electrode layers in the light-emission elements are separated from each other, and the organic layers and the second electrode layers are separated from each other by the steps. ### Claim 13 (depends on 12) The organic EL light-emitting device according to claim 12, wherein the light-emission elements are further arranged in a second direction which is different from the first direction, and the second electrode layers are disposed in accordance with alignment of the light-emission elements in the second direction. ### Claim 14 (depends on 13) The organic EL light-emitting device according to claim 13, wherein the light-emission elements aligned in the first direction are configured to emit light of different colors. ### Claim 15 (depends on 14) The organic EL light-emitting device according to claim 14, wherein the light-emission elements includes a plurality of red light-emission elements, a plurality of green light-emission elements, and a plurality of blue light-emission elements, wherein the red light-emission element, the green light-emission element, and the blue light-emission element are arranged, in that order, repeatedly in the first direction. ### Claim 16 (depends on 13) The organic EL light-emitting device according to claim 13, wherein the light-emission elements aligned in the second direction are configured to emit light of the same colors. ### Claim 17 (depends on 13) The organic EL light-emitting device according to claim 13, wherein the second electrode layers in the light-emission elements adjacent to each other in the second direction are combined with each other. ### Claim 18 (depends on 17) The organic EL light-emitting device according to claim 17, wherein the second electrode layers in the light-emission elements adjacent to each other in the second direction are combined with each other in a same level of layer. ### Claim 19 (depends on 18) The organic EL light-emitting device according to claim 18, wherein the steps are formed by a projection-depression portion formed as part of an insulating layer to separate the first electrode layers adjacent to each other, from each other. ### Claim 20 (depends on 19) The organic EL light-emitting device according to claim 19, wherein the projection-depression portion of the insulating layer has a film surface and a wall surface which intersect at an acute angle. ### Claim 21 (depends on 19) The organic EL light-emitting device according to claim 19, wherein the insulating layer has, at each of outermost edges thereof, a film surface and a wall surface which intersect at an acute angle. ### Claim 22 (depends on 13) The organic EL light-emitting device according to claim 13, wherein a maximum distance in a thickness direction between a position of a film surface of the insulating layer and a position of a film surface of the first electrode layer is larger than a total thickness of the organic layer and the second electrode layer.