# US 2014/0197395 A1 · Organic luminescent display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0197395 A1 - Document ID: US20140197395A1 - Status: Published application - Kind: A1 - Application number: 14/155,392 - Filed: 2014-01-15 - Published: 2014-07-17 - Earliest claimed: 2013-01-17 - Assignees: Japan Display Inc. - Applicants: Japan Display Inc. - Inventors: Tomoyuki ARIYOSHI; Naoki TOKUDA; Toshihiro SATO - Web page: https://patentgrep.com/patent/US20140197395A1 ## CPC - H10K 59/80518: {Reflective anodes, e.g. ITO combined with thick metallic layers} - H10K 59/12: Active-matrix OLED [AMOLED] displays - H10K 2102/3026: {Top emission} - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract An organic luminescent display device according to the invention includes: an element substrate; an organic film; and an organic electro luminescent element formed on the organic film. The organic electro luminescent element includes: an anode formed on the organic film; a light emitting layer formed on the anode; and a cathode formed on the light emitting layer. The anode includes: an adhesion layer formed in contact with an upper surface of the organic film; a reflection layer and formed in contact with an upper surface of the adhesion layer; and a light transmitting contact layer formed on the reflection layer. An edge portion of an outer periphery of the adhesion layer is positioned outside an edge portion of an outer periphery of the reflection layer as viewed in a plan view. ## Claims ### Claim 1 An organic luminescent display device comprising: an element substrate; an organic film formed above the element substrate; and an organic electro luminescent element formed on the organic film, wherein the organic electro luminescent element includes: an anode formed on the organic film; a light emitting layer formed on the anode; and a cathode formed on the light emitting layer, and the anode includes: an adhesion layer formed in contact with an upper surface of the organic film; a reflection layer made of silver and formed in contact with an upper surface of the adhesion layer; and a light transmitting contact layer formed on the reflection layer, and an edge portion of an outer periphery of the adhesion layer is positioned outside an edge portion of an outer periphery of the reflection layer as viewed in a plan view. ### Claim 2 (depends on 1) The organic luminescent display device according to claim 1, wherein an edge portion of the upper surface of the adhesion layer is positioned outside an edge portion of a lower surface of the reflection layer as viewed in a plan view. ### Claim 3 (depends on 1) The organic luminescent display device according to claim 1, wherein an edge portion of a lower surface of the adhesion layer is positioned outside an edge portion of an upper surface of the adhesion layer as viewed in a plan view. ### Claim 4 (depends on 1) The organic luminescent display device according to claim 1, wherein an etching rate of dry etching of the adhesion layer is smaller than an etching rate of dry etching of the reflection layer. ### Claim 5 (depends on 1) The organic luminescent display device according to claim 1, wherein the adhesion layer contains at least one of titanium and titanium nitride. ### Claim 6 (depends on 5) The organic luminescent display device according to claim 5, wherein the adhesion layer has the laminated structure which is constituted of a layer made of titanium and a layer made of titanium nitride. ### Claim 7 (depends on 1) The organic luminescent display device according to claim 1, wherein the adhesion layer is formed of a transparent conductive film. ### Claim 8 (depends on 1) The organic luminescent display device according to claim 1, wherein the light transmitting contact layer is formed of a transparent conductive film. ### Claim 9 (depends on 1) The organic luminescent display device according to claim 1, wherein a thin film transistor is formed above the element substrate, and the organic film covers the thin film transistor. ### Claim 10 (depends on 1) The organic luminescent display device according to claim 1, further comprising a bank which is formed of an insulator and surrounds the anode, wherein the bank covers the edge portion of the outer periphery of the adhesion layer. ### Claim 11 (depends on 10) The organic luminescent display device according to claim 10, wherein the bank covers the edge portion of the outer periphery of the reflection layer. ### Claim 12 An organic luminescent display device comprising: an element substrate; an organic film formed above the element substrate; and an organic electro luminescent element formed on the organic film, wherein the organic electro luminescent element includes: an anode formed on the organic film; a light emitting layer formed on the anode; and a cathode formed on the light emitting layer, and the anode includes: an adhesion layer formed in contact with an upper surface of the organic film; a reflection layer formed in contact with an upper surface of the adhesion layer; and a light transmitting contact layer formed on the reflection layer, and an edge portion of an outer periphery of the adhesion layer is positioned outside an edge portion of an outer periphery of the reflection layer as viewed in a plan view. ### Claim 13 (depends on 12) The organic luminescent display device according to claim 12, wherein an edge portion of the upper surface of the adhesion layer is positioned outside an edge portion of a lower surface of the reflection layer as viewed in a plan view. ### Claim 14 (depends on 12) The organic luminescent display device according to claim 12, wherein an edge portion of a lower surface of the adhesion layer is positioned outside an edge portion of an upper surface of the adhesion layer as viewed in a plan view. ### Claim 15 (depends on 12) The organic luminescent display device according to claim 12, wherein an etching rate of dry etching of the adhesion layer is smaller than an etching rate of dry etching of the reflection layer. ### Claim 16 (depends on 12) The organic luminescent display device according to claim 12, wherein a thin film transistor is formed above the element substrate, and the organic film covers the thin film transistor. ### Claim 17 (depends on 12) The organic luminescent display device according to claim 12, further comprising a bank which is formed of an insulator and surrounds the anode, wherein the bank covers the edge portion of the outer periphery of the adhesion layer. ### Claim 18 (depends on 17) The organic luminescent display device according to claim 17, wherein the bank covers the edge portion of the outer periphery of the reflection layer.