# US 10,483,333 B2 · Touch display panel and touch display apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,483,333 B2 - Document ID: US10483333B2 - Status: Granted - Kind: B2 - Application number: 15/678,367 - Filed: 2017-08-16 - Published: 2018-08-16 - Granted: 2019-11-19 - Earliest claimed: 2017-02-15 - Assignees: Shanghai Tianma Micro-Electronics Co., Ltd. - Applicants: Shanghai Tianma Micro-Electronics Co., Ltd. - Inventors: Yang Zeng; Xingyao Zhou; Lihua Wang; Qijun Yao - Web page: https://patentgrep.com/patent/US10483333B2 ## CPC - 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} - G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes} - H10K 59/122: Pixel-defining structures or layers, e.g. banks - H10K 59/131: Interconnections, e.g. wiring lines or terminals - H10K 59/40: OLEDs integrated with touch screens - H10K 59/873: {Encapsulations} - G06F 2203/04111: Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate - G06F 2203/04112: Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract A touch display panel and a touch display apparatus are provided. The touch display panel includes: a substrate; an organic light emitting device; at least one retaining wall, the width of which is 30˜200 μm; a thin film encapsulation layer covering the retaining wall, and a height difference between a first retaining wall and a part of the thin film encapsulation layer located between the first retaining wall and a display area is 0˜3 μm; and electrode wires, at least a part of at least one of the electrode wires is located at least in non-display areas of the substrate, is located at a side, which is facing away from the retaining wall, of the thin film encapsulation layer, and is arranged along an extension direction of the retaining wall, and projections of the electrode wires on the substrate are located within a projection of the retaining wall on the substrate. ## Claims ### Claim 1 A touch display panel, comprising: a substrate comprising a display area and non-display areas; an organic light emitting device formed in the display area of the substrate; at least one retaining wail arranged in the non-display areas of the substrate, wherein the at least one retaining wall comprises a first retaining wall which is adjacent to the display area, and a width of the at least one retaining wall is greater than or equal to 30 μm and less than or equal to 200 μm; a thin film encapsulation layer, wherein the thin film encapsulation layer is arranged on the organic light emitting device, and the thin film encapsulation layer comprises at least one inorganic encapsulation layer and at least one organic encapsulation layer, and the thin film encapsulation layer covers the at least one retaining wall, a height difference between the first retaining wall and a part of the thin film encapsulation layer located between the first retaining wall and the display area is greater than or equal to 0 μm and less than or equal to 3 μm; touch electrodes, wherein the touch electrodes are arranged on the thin film encapsulation layer, and at least a part of at least one of the touch electrodes is located in the display area of the substrate; and electrode wires, wherein at least a part of at least one of the electrode wires is located in the non-display area of the substrate, is disposed on the thin film encapsulation layer, and is arranged along an extension direction of the at least one retaining wall, wherein projections of the electrode wires on the substrate are located within a projection of the at least one retaining wall on the substrate. ### Claim 2 (depends on 1) The touch display panel according to claim 1, wherein the electrode wires comprise touch electrode wires, at least a part of at least one of the touch electrode wires is located in the non-display area of the substrate, and the touch electrode wires are connected with the touch electrodes. ### Claim 3 (depends on 1) The touch display panel according to claim 1, wherein the electrode wires further comprise a grounding wire. ### Claim 4 (depends on 1) The touch display panel according to claim 1, wherein a height of the at least one retaining wall is greater than or equal to 4 μm and less than or equal to 6 μm. ### Claim 5 (depends on 1) The touch display panel according to claim 1, wherein a width of the at least one retaining wall is greater than or equal to 60 μm and less than or equal to 70 μm. ### Claim 6 (depends on 1) The touch display panel according to claim 1, wherein an inclination angle of the at least one retaining wall is greater than or equal to 10 degrees and less than or equal to 30 degrees. ### Claim 7 (depends on 1) The touch display panel according to claim 1, wherein the at least one retaining wall comprises at least two retaining walls and the electrode wires are arranged between the two retaining walls. ### Claim 8 (depends on 7) The touch display panel according to claim 7, wherein one of the electrode wires is arranged between the two retaining walls. ### Claim 9 (depends on 1) The touch display panel according to claim 1, wherein all the electrode wires are arranged on the first retaining wall. ### Claim 10 (depends on 1) The touch display panel according to claim 1, wherein materials of the touch electrodes and the electrode wires are any one of tin indium oxide, metal meshes, metal nano materials, graphene, conductive macromolecules and carbon nano tubes. ### Claim 11 (depends on 1) The touch display panel according to claim 1, wherein the touch electrodes and the electrode wires are formed by any one of an ink jet printing process, a silk-screen printing process, a laser etching process and a wet etching process. ### Claim 12 (depends on 1) The touch display panel according to claim 1, wherein a groove is arranged on each of the at least one retaining wall, and the at least a port of at least one of the electrode wires is located in the groove. ### Claim 13 (depends on 1) The touch display panel according to claim 1, wherein the touch display panel is a self-capacitance touch display panel. ### Claim 14 (depends on 13) The touch display panel according to claim 13, wherein a first inorganic encapsulation layer, an organic encapsulation layer and a second inorganic encapsulation layer are sequentially arranged on the organic light emitting device. ### Claim 15 (depends on 14) The touch display panel according to claim 14, wherein the touch electrodes comprise first touch electrodes and second touch electrodes, the first touch electrodes and the second touch electrodes are prepared at a same layer and are intersected and insulated from each other, and the first touch electrodes are connected by crossing bridges. ### Claim 16 (depends on 15) The touch display panel according to claim 15, wherein the touch electrodes are arranged on the second inorganic encapsulation layer, or arranged between the organic encapsulation layer and the second inorganic encapsulation layer. ### Claim 17 (depends on 14) The touch display panel according to claim 14 wherein the touch electrodes comprises first touch electrodes and second touch electrodes, the first touch electrodes and the second touch electrodes are arranged at different layers and are insulated from each other, the first touch electrodes are arranged between the organic encapsulation layer and the second inorganic encapsulation layer, and the second touch electrodes are arranged on the second inorganic encapsulation layer. ### Claim 18 (depends on 1) The touch display panel according to claim 1, wherein the touch display panel is a mutual capacitance touch display panel. ### Claim 19 (depends on 1) The touch display panel according to claim 1, wherein the organic light emitting device sequentially comprises a planarization layer, a thin film transistor layer and a device layer at a side toward the thin film encapsulation layer of the substrate. ### Claim 20 A touch display apparatus comprising a touch display panel, wherein the touch display panel comprises: a substrate comprising a display area and non-display areas; an organic light emitting device formed in the display area of the substrate; at least one retaining wall arranged in the non-display areas of the substrate, wherein the at least one retaining wall comprises a first retaining wall which is adjacent to the display area, and a width of the at least one retaining wall is greater than or equal to 30 μm and less than or equal to 200 μm; a thin film encapsulation layer, wherein the thin film encapsulation layer is arranged on the organic light emitting device, and the thin film encapsulation layer comprises at least one inorganic encapsulation layer and at least one organic encapsulation layer, and the thin film encapsulation layer covers the at least one retaining wall, a height difference between the first retaining wall and a part of the thin film encapsulation layer located between the first retaining wall and the display area is greater than or equal to 0 μm and less than or equal to 3 μm; touch electrodes, wherein the touch electrodes are arranged on the thin film encapsulation layer, and at least a part of at least one of the touch electrodes is located in the display area of the substrate; and electrode wires, wherein at least a part of at least one of the electrode wires is located in the non-display area of the substrate, is disposed on the thin film encapsulation layer, and is arranged along an extension direction of the at least one retaining wall, wherein projections of the electrode wires on the substrate are located within a projection of the at least one retaining wall on the substrate.