# US 2019/0355935 A1 · Organic light emitting display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0355935 A1 - Document ID: US20190355935A1 - Status: Published application - Kind: A1 - Application number: 16/529,030 - Filed: 2019-08-01 - Published: 2019-11-21 - Earliest claimed: 2017-11-28 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., Ltd. - Inventors: Soonil JUNG; Haeyoung YUN; Junghyun CHO; Sanghyun CHOI - Web page: https://patentgrep.com/patent/US20190355935A1 ## CPC - G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes} - G06F 3/0412: {Digitisers structurally integrated in a display} - G06F 3/0445: {using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer} - H10K 59/122: Pixel-defining structures or layers, e.g. banks - H10K 59/352: {the areas of the RGB subpixels being different} - H10K 59/353: {characterised by the geometrical arrangement of the RGB subpixels} - H10K 59/40: OLEDs integrated with touch screens - H10K 59/873: {Encapsulations} - H10K 59/879: {comprising refractive means, e.g. lenses} - H10K 59/80515: {characterised by their shape} - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract An organic light emitting display device includes: a substrate; a first electrode on the substrate; a pixel defining layer on the substrate, the pixel defining layer defining a first opening which exposes at least a part of the first electrode; an organic light emitting layer on the first electrode; a second electrode on the organic light emitting layer; a thin film encapsulation layer on the second electrode; a sensing electrode on the thin film encapsulation layer; a low refractive index layer on the sensing electrode, the low refractive index layer defining a second opening which overlaps the first opening; and a high refractive index layer on the thin film encapsulation layer. A gap between an edge of the first opening and an edge of the second opening is constant irrespective of direction. ## Claims ### Claim at position 1 -20. (canceled) ### Claim 21 An organic light emitting display device, comprising: a substrate; a first electrode on the substrate; a pixel defining layer on the substrate, the pixel defining layer defining a first opening which exposes at least a part of the first electrode; an organic light emitting layer on the first electrode; a second electrode on the organic light emitting layer; a low refractive index layer on the upper side of the second electrode, the low refractive index layer defining a second opening that overlaps the first opening; and a high refractive index layer in the second opening, wherein a gap between an edge of the first opening and an edge of the second opening is constant irrespective of direction. ### Claim 22 (depends on 21) The organic light emitting display device as claimed in claim 21, wherein the first opening has a shape substantially the same as a shape of the second opening on a plane. ### Claim 23 (depends on 21) The organic light emitting display device as claimed in claim 21, wherein a size of the first opening is less than a size of the second opening on a plane. ### Claim 24 (depends on 21) The organic light emitting display device as claimed in claim 21, wherein: each of the edge of the first opening and the edge of the second opening forms a closed loop, and the closed loop has a substantially circular, rhombic or octagonal shape on a plane. ### Claim 25 (depends on 21) The organic light emitting display device as claimed in claim 21, wherein the gap between the edge of the first opening and the edge of the second opening is between about 0.5 μm to about 5.0 μm on a plane. ### Claim 26 (depends on 25) The organic light emitting display device as claimed in claim 25, wherein the gap between the edge of the first opening and the edge of the second opening is about 1 μm on a plane. ### Claim 27 (depends on 21) The organic light emitting display device as claimed in claim 21, wherein an interface between the low refractive index layer and the high refractive index layer forms an angle between about 40° to about 70° with respect to a straight line parallel to the substrate. ### Claim 28 (depends on 21) The organic light emitting display device as claimed in claim 21, wherein the low refractive index layer overlaps the pixel defining layer. ### Claim 29 (depends on 21) The organic light emitting display device as claimed in claim 21, wherein the high refractive index layer is on the low refractive index layer. ### Claim 30 (depends on 21) The organic light emitting display device as claimed in claim 21, wherein the high refractive index layer has a height substantially equal to a height of the low refractive index layer. ### Claim 31 (depends on 21) The organic light emitting display device as claimed in claim 21, wherein the low refractive index layer has a refractive index between about 1.40 to about 1.59. ### Claim 32 (depends on 21) The organic light emitting display device as claimed in claim 21, wherein the high refractive index layer has a refractive index between about 1.60 to about 1.80. ### Claim 33 An organic light emitting display device, comprising: a substrate; a plurality of first electrodes on the substrate; a pixel defining layer on the substrate, the pixel defining layer defining a plurality of first openings which expose at least a part of the plurality of first electrodes, respectively; a red light emitting layer, a green light emitting layer, and a blue light emitting layer respectively on the plurality of first electrodes; a second electrode on the red light emitting layer, the green light emitting layer, and the blue light emitting layer; a low refractive index layer on the upper side of the second electrode, the low refractive index layer defining a plurality of second openings which overlap the plurality of first openings, respectively; and a high refractive index layer in the plurality of second openings, wherein each of a first gap between an edge of the first opening overlapping the red light emitting layer and an edge of the second opening overlapping the red light emitting layer, a second gap between an edge of the first opening overlapping the green light emitting layer and an edge of the second opening overlapping the green light emitting layer, and a third gap between an edge of the first opening overlapping the blue light emitting layer and an edge of the second opening overlapping the blue light emitting layer is constant irrespective of direction. ### Claim 34 (depends on 33) The organic light emitting display device as claimed in claim 33, wherein each of the first gap, the second gap, and the third gap is between about 0.5 μm to about 5.0 μm. ### Claim 35 (depends on 33) The organic light emitting display device as claimed in claim 33, wherein a ratio between the first gap, the second gap, and the third gap is about 1:1:1. ### Claim 36 (depends on 35) The organic light emitting display device as claimed in claim 35, wherein each of the first gap, the second gap, and the third gap is about 1 μm. ### Claim 37 (depends on 33) The organic light emitting display device as claimed in claim 33, wherein a ratio between the first gap, the second gap, and the third gap is about 1:2:1. ### Claim 38 (depends on 33) The organic light emitting display device as claimed in claim 33, wherein an interface between the low refractive index layer and the high refractive index layer forms an angle from about 40° to about 70° with respect to a straight line parallel to the substrate.