# US 12,004,405 B2 · Display device and method of fabricating the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,004,405 B2 - Document ID: US12004405B2 - Status: Granted - Kind: B2 - Application number: 18/058,724 - Filed: 2022-11-23 - Published: 2023-03-23 - Granted: 2024-06-04 - Earliest claimed: 2020-10-13 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., Ltd. - Inventors: Donghyun Lee; Si Joon Song - Web page: https://patentgrep.com/patent/US12004405B2 ## CPC - G06F 3/04164: {Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads} - G06F 3/0412: {Digitisers structurally integrated in a display} - G06F 3/0443: {using a single layer of sensing electrodes} - G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes} - H10K 59/131: Interconnections, e.g. wiring lines or terminals - H10K 59/40: OLEDs integrated with touch screens - G06F 2203/04103: Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices - 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 display device may include a display panel including a first substrate, a second substrate on the first substrate, and a light-emitting device between the first substrate and the second substrate, an input sensing portion including a sensing electrode on the second substrate and a first pad connected to the sensing electrode, a first circuit film near a side surface of the display panel adjacent to the first pad, the first circuit film including a first contact pad spaced from the first pad, a first conductive layer on the first pad, the first conductive layer being extended to the first contact pad to electrically connect the first pad to the first contact pad, and a protection layer on the first conductive layer. ## Claims ### Claim 1 A display device comprising: a display panel comprising a first substrate and a second substrate; a first pad connected to a sensing electrode on the second substrate; a first circuit film on a side surface of the display panel, electrically connected to the first pad, and comprising a first contact pad; a first conductive layer electrically connecting the first pad to the first contact pad; and a protection layer on the first conductive layer. ### Claim 2 (depends on 1) The display device of claim 1, wherein the first conductive layer is on the first pad, and the protection layer is on the first pad, the first conductive layer, and the first contact pad to cover the first conductive layer. ### Claim 3 (depends on 1) The display device of claim 1, wherein the first conductive layer comprises a metal powder. ### Claim 4 (depends on 1) The display device of claim 1, further comprising a first adhesive layer between the display panel and the first contact pad, wherein the first conductive layer is between the first pad and the first contact pad, the first conductive layer being on the first adhesive layer. ### Claim 5 (depends on 4) The display device of claim 4, wherein the first conductive layer is in contact with a top surface of the first pad, wherein a top surface of the first adhesive layer is between the first pad and the first contact pad, and wherein a side surface of the first contact pad faces a side surface of the first pad. ### Claim 6 (depends on 1) The display device of claim 1, wherein the first contact pad faces the side surface of the display panel, and wherein the first contact pad protrudes upwardly relative to the second substrate. ### Claim 7 (depends on 6) The display device of claim 6, wherein a side surface of the first pad overlaps the side surface of the display panel in a plan view. ### Claim 8 (depends on 1) The display device of claim 1, wherein a thickness of the first conductive layer increases along a direction from the first pad toward the first contact pad. ### Claim 9 (depends on 1) The display device of claim 1, further comprising: a second circuit film comprising a second contact pad facing a side surface of the first substrate; a second pad on the first substrate; a second adhesive layer between the side surface of the first substrate and the second contact pad; and a second conductive layer on the second pad and the second adhesive layer, the second conductive layer electrically connecting the second pad to the second contact pad. ### Claim 10 (depends on 1) The display device of claim 1, wherein a top surface of the first contact pad is below a top surface of the second substrate. ### Claim 11 (depends on 1) The display device of claim 1, wherein on a plane, a side surface of the first pad is spaced from a side surface of the second substrate, and wherein the second substrate has an inclined surface connecting the side surface of the second substrate to the side surface of the first pad. ### Claim 12 (depends on 11) The display device of claim 11, wherein the first conductive layer covers the side surface of the first pad and the inclined surface of the second substrate. ### Claim 13 (depends on 1) The display device of claim 1, wherein a side surface of the first pad is spaced from a side surface of the second substrate on a plane, and wherein the second substrate has a curved surface connecting the side surface of the second substrate to the side surface of the first pad. ### Claim 14 (depends on 13) The display device of claim 13, wherein the first conductive layer covers the side surface of the first pad and the curved surface of the second substrate. ### Claim 15 (depends on 1) The display device of claim 1, further comprising: a second circuit film comprising a second contact pad facing a side surface of the first substrate; a deposition metal layer on the side surface of the first substrate and on a bottom surface of the first substrate adjacent to the side surface of the first substrate; a second adhesive layer between the deposition metal layer and the second contact pad; and a second conductive layer below the deposition metal layer, the second conductive layer electrically connecting the deposition metal layer to the second contact pad. ### Claim 16 (depends on 1) The display device of claim 1, further comprising a deposition metal layer on the first pad, the deposition metal layer being extended to a bottom surface of the display panel along the side surface of the display panel, wherein the first conductive layer is below the deposition metal layer, the first conductive layer electrically connecting the first pad to the first contact pad. ### Claim 17 (depends on 1) The display device of claim 1, further comprising: a second circuit film below the first substrate, the second circuit film comprising a second contact pad protruding outwardly relative to a side surface of the first substrate; a deposition metal layer on the side surface of the first substrate; and a second conductive layer on the deposition metal layer and on the second contact pad to electrically connect the deposition metal layer to the second contact pad. ### Claim 18 (depends on 1) The display device of claim 1, further comprising a deposition metal layer on the first pad, the deposition metal layer being extended to the side surface of the display panel, wherein the first circuit film is below the first substrate, wherein the first contact pad is outwardly extended relative to a side surface of the first substrate, and wherein the first conductive layer is on the deposition metal layer and the first contact pad. ### Claim 19 (depends on 1) The display device of claim 1, the first conductive layer is on the first pad and the first contact pad. ### Claim 20 (depends on 1) The display device of claim 1, wherein a thickness of the first conductive layer decreases along a direction from the first pad toward the first contact pad.