# US 9,040,976 B2 · Organic light emitting display panel and organic light emitting display device having the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,040,976 B2 - Document ID: US9040976B2 - Status: Granted - Kind: B2 - Application number: 14/322,356 - Filed: 2014-07-02 - Published: 2015-01-15 - Granted: 2015-05-26 - Earliest claimed: 2013-07-15 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., Ltd. - Inventors: Myoung-Gu Lee - Web page: https://patentgrep.com/patent/US9040976B2 ## CPC - H10K 59/879: {comprising refractive means, e.g. lenses} - H10K 59/877: {comprising scattering means} - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract An organic light emitting display panel includes a substrate, an organic light emitting diode disposed on a first side of the substrate, and a first light scattering layer disposed on a second side of the substrate opposite to the first side of the substrate, where the first light scattering layer includes a transparent thin layer including an indium, and a plurality of first micro-lenses is disposed on a plasma-treated side of the first light scattering layer. ## Claims ### Claim 1 An organic light emitting display panel comprising: a substrate; an organic light emitting diode disposed on a first side of the substrate; a first light scattering layer disposed on a second side of the substrate opposite to the first side of the substrate; and a plurality of first micro-lenses disposed on the first light scattering layer, wherein the first light scattering layer includes a transparent thin layer including indium, and the plurality of first micro-lenses is disposed on a plasma-treated side of the first light scattering layer. ### Claim 2 (depends on 1) The organic light emitting display panel of claim 1, wherein the first light scattering layer further includes Indium Tin Oxide or Indium Zinc Oxide. ### Claim 3 (depends on 1) The organic light emitting display panel of claim 1, wherein the plurality of first micro-lenses is regularly arranged on the first light scattering layer. ### Claim 4 (depends on 1) The organic light emitting display panel of claim 1, wherein the plurality of first micro-lenses is irregularly arranged on the first light scattering layer. ### Claim 5 (depends on 1) The organic light emitting display panel of claim 1, wherein each of the plurality of first micro-lenses has a polygon-shape. ### Claim 6 (depends on 1) The organic light emitting display panel of claim 1, wherein each of the plurality of first micro-lenses has a circle-shape. ### Claim 7 (depends on 6) The organic light emitting display panel of claim 6, wherein a diameter of each of the plurality of first micro-lenses ranges from about 5 micrometers to about 10 micrometers. ### Claim 8 (depends on 1) The organic light emitting display panel of claim 1, wherein the organic light emitting display panel has a top emission type structure, a bottom emission type structure, or a both-sides emission type structure. ### Claim 9 (depends on 1) The organic light emitting display panel of claim 1, further comprising: a second light scattering layer disposed between the substrate and the organic light emitting diode. ### Claim 10 (depends on 9) The organic light emitting display panel of claim 9, further comprising a plurality of second micro-lenses disposed on the second light scattering layer, wherein the second light scattering layer includes a transparent thin layer including the indium, and the plurality of second micro-lenses is disposed on a plasma-treated side of the second light scattering layer. ### Claim 11 (depends on 9) The organic light emitting display panel of claim 9, further comprising: a planarization layer disposed between the substrate and the second light scattering layer. ### Claim 12 An organic light emitting display device comprising: an organic light emitting display panel including a plurality of pixel circuits; a scan driving unit configured to provide a scan signal to the plurality of pixel circuits; a data driving unit configured to provide a data signal to the plurality of pixel circuits; and a timing control unit configured to control the scan driving unit and the data driving unit, wherein the organic light emitting display panel includes: a substrate; an organic light emitting diode disposed on a first side of the substrate; and a first light scattering layer disposed on a second side of the substrate opposite to the first side of the substrate; and a plurality of first micro-lenses disposed on the first light scattering layer, wherein the first light scattering layer includes a transparent thin layer including indium, and the plurality of first micro-lenses is disposed on a plasma treated side of the first light scattering layer. ### Claim 13 (depends on 12) The organic light emitting display device of claim 12, wherein the first light scattering layer further includes Indium Tin Oxide or Indium Zinc Oxide. ### Claim 14 (depends on 12) The organic light emitting display device of claim 12, wherein the plurality of first micro-lenses is irregularly arranged on the first light scattering layer. ### Claim 15 (depends on 12) The organic light emitting display device of claim 12, wherein the plurality of first micro-lenses has a circle-shape. ### Claim 16 (depends on 15) The organic light emitting display device of claim 15, wherein a diameter of each of the plurality of first micro-lenses ranges from about 5 micrometers to about 10 micrometers. ### Claim 17 (depends on 12) The organic light emitting display device of claim 12, wherein the display panel has a top emission type structure, bottom emission type structure, or both-sides emission type structure. ### Claim 18 (depends on 12) The organic light emitting display device of claim 12, wherein the organic light emitting display panel further includes: a second light scattering layer disposed between the substrate and the organic light emitting diode. ### Claim 19 (depends on 18) The organic light emitting display device of claim 18, further comprising a plurality of second micro-lenses disposed on the second light scattering layer, wherein the second light scattering layer includes a transparent thin layer including indium, and the plurality of second micro-lenses is disposed on a plasma treated side of the second light scattering layer. ### Claim 20 (depends on 18) The organic light emitting display device of claim 18, wherein the organic light emitting display panel further includes: a planarization layer disposed between the substrate and the second light scattering layer.