# US 12,191,256 B2 · Display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,191,256 B2 - Document ID: US12191256B2 - Status: Granted - Kind: B2 - Application number: 17/385,332 - Filed: 2021-07-26 - Published: 2022-05-19 - Granted: 2025-01-07 - Earliest claimed: 2020-11-18 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., LTD. - Inventors: Jung Wook Lee; Min Woo Kang; Yeong Ho Kim; Yong Jae Park; Min Jae Baek - Web page: https://patentgrep.com/patent/US12191256B2 ## CPC - G09G 3/006: {Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays (testing individual LED's G01R31/2635; testing lamps G01R31/44; testing of optical features of LCD displays G02F1/1309)} - G09G 3/3233: with pixel circuitry controlling the current through the light-emitting element - H10H 20/852: Encapsulations - H10H 20/857: Interconnections, e.g. lead-frames, bond wires or solder balls - H10W 20/20: Interconnections within wafers or substrates, e.g. through-silicon vias [TSV] - H10W 20/42: Vias, e.g. via plugs - H10W 20/47: comprising two or more dielectric layers having different properties, e.g. different dielectric constants - H10W 20/48: Insulating materials thereof - H10W 90/00: Package configurations - G09G 2300/0426: Layout of electrodes and connections - G09G 2300/0819: used for counteracting undesired variations, e.g. feedback or autozeroing - G09G 2300/0861: with additional control of the display period without amending the charge stored in a pixel memory, e.g. by means of additional select electrodes - G09G 2310/061: for resetting or blanking - G09G 2330/12: Test circuits or failure detection circuits included in a display system, as permanent part thereof - G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00) - H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS - H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10 ## Abstract A display device includes a display panel including a display area and a non-display area; a first signal line in the non-display area and transmitting an initialization voltage; a connection wire in the non-display area and electrically connected to the first signal line; a bridge pattern connecting the first signal line to the connection wire; an insulating layer between the first signal line and the bridge pattern; a partition wall on the bridge pattern; and a spacer on the partition wall, wherein the insulating layer includes a first contact hole overlapping the first signal line, and a second contact hole overlapping the connection wire, the first signal line is connected to the bridge pattern through the first contact hole, the bridge pattern is connected to the connection wire through the second contact hole, the partition wall covers the first contact hole, and the spacer overlaps the first contact hole. ## Claims ### Claim 1 A display device comprising: a display panel including a display area and a non-display area; a first signal line disposed in the non-display area and transmitting an initialization voltage; a connection wire disposed in the non-display area and electrically connected to the first signal line; a bridge pattern electrically connecting the first signal line to the connection wire; an insulating layer disposed between the first signal line and the bridge pattern; a partition wall disposed on the bridge pattern; a spacer disposed on the partition wall; and a conductive layer disposed on the spacer in the non-display area, wherein the insulating layer includes: a first contact hole overlapping the first signal line; and a second contact hole overlapping the connection wire, the first signal line is electrically connected to the bridge pattern through the first contact hole, the bridge pattern is electrically connected to the connection wire through the second contact hole, the partition wall covers the first contact hole, the spacer overlaps the first contact hole, and the conductive layer protrudes on the spacer in a direction away from the substrate in a cross-sectional view. ### Claim 2 (depends on 1) The display device of claim 1, wherein the partition wall fills the first contact hole and the second contact hole, and the partition wall includes: a first denting portion overlapping the first contact hole, and a second denting portion overlapping the second contact hole. ### Claim 3 (depends on 2) The display device of claim 2, wherein the spacer fills the first denting portion and the second denting portion of the partition wall. ### Claim 4 (depends on 1) The display device of claim 1, wherein the partition wall and the spacer are disposed on a same layer and include a same material, and the spacer protrudes from the partition wall. ### Claim 5 (depends on 1) The display device of claim 1, wherein the spacer includes: a first spacer surrounding an edge of the bridge pattern; a second spacer overlapping the first contact hole; and a third spacer overlapping the second contact hole. ### Claim 6 (depends on 5) The display device of claim 5, wherein the spacer further includes a fourth spacer disposed on the bridge pattern and not overlapping the first contact hole and the second contact hole. ### Claim 7 (depends on 5) The display device of claim 5, wherein the second spacer is spaced apart from the first spacer. ### Claim 8 (depends on 5) The display device of claim 5, wherein the second spacer is connected to the first spacer. ### Claim 9 (depends on 5) The display device of claim 5, wherein the third spacer is spaced apart from the first spacer. ### Claim 10 (depends on 5) The display device of claim 5, wherein the third spacer is connected to the first spacer. ### Claim 11 (depends on 1) The display device of claim 1, wherein the display panel includes a buffer layer, a first gate insulating layer, a second gate insulating layer, a first insulating layer, a third gate insulating layer, a second insulating layer, a third insulating layer, a fourth insulating layer, and the partition wall sequentially disposed on a substrate, and the first signal line and the connection wire are disposed between the third insulating layer and the fourth insulating layer. ### Claim 12 (depends on 11) The display device of claim 11, wherein the bridge pattern is disposed between the fourth insulating layer and the partition wall. ### Claim 13 (depends on 11) The display device of claim 11, wherein the spacer is disposed on the partition wall, and the display device further includes a conductive layer disposed on the spacer. ### Claim 14 (depends on 1) The display device of claim 1, wherein a height of the spacer is equal to or greater than about 10,000 angstroms (Å). ### Claim 15 A display device comprising: a display panel including a display area and a non-display area; a first signal line disposed in the non-display area and transmitting a first signal; a connection wire electrically connected to the first signal line; a bridge pattern disposed in the non-display area and electrically connecting the first signal line to the connection wire; an insulating layer disposed between the first signal line and the bridge pattern; a partition wall disposed on the bridge pattern; a spacer disposed on the partition wall; and a conductive layer disposed on the spacer in the non-display area, wherein the insulating layer includes: a first contact hole overlapping the first signal line; and a second contact hole overlapping the connection wire, the first signal line is electrically connected to the bridge pattern through the first contact hole, the bridge pattern is electrically connected to the connection wire through the second contact hole, the partition wall includes a denting portion overlapping the first contact hole and the second contact hole, and the spacer fills the denting portion, the conductive layer protrudes on the spacer in a direction away from the substrate in a cross-sectional view. ### Claim 16 (depends on 15) The display device of claim 15, wherein the first signal line transmits a first initialization voltage or a second initialization voltage. ### Claim 17 (depends on 15) The display device of claim 15, wherein the bridge pattern includes at least an opening in the bridge pattern. ### Claim 18 (depends on 15) The display device of claim 15, wherein the connection wire extends in a first direction, the first signal line extends in a second direction, and the first direction and the second direction are substantially perpendicular to each other. ### Claim 19 (depends on 15) The display device of claim 15, wherein the spacer includes: a first spacer surrounding an edge of the bridge pattern, a second spacer overlapping the first contact hole, and a third spacer overlapping the second contact hole. ### Claim 20 (depends on 19) The display device of claim 19, wherein the spacer further includes a fourth spacer disposed on the bridge pattern and not overlapping the first contact hole and the second contact hole. ### Claim 21 (depends on 1) The display device of claim 1, wherein the conductive layer protrudes on the spacer at an area overlapping the first contact hole.