# US 12,604,586 B2 · Display apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,604,586 B2 - Document ID: US12604586B2 - Status: Granted - Kind: B2 - Application number: 18/319,336 - Filed: 2023-05-17 - Published: 2023-12-14 - Granted: 2026-04-14 - Earliest claimed: 2022-06-08 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., Ltd. - Inventors: Soohong Cheon; Sunkwang Kim - Web page: https://patentgrep.com/patent/US12604586B2 ## CPC - G09G 3/3233: with pixel circuitry controlling the current through the light-emitting element - H10H 20/857: Interconnections, e.g. lead-frames, bond wires or solder balls - H10D 86/441: {Interconnections, e.g. scanning lines} - H10D 86/481: {integrated with passive devices, e.g. auxiliary capacitors} - H10D 86/60: wherein the TFTs are in active matrices - H10W 90/00: Package configurations - G09G 2300/0413: Details of dummy pixels or dummy lines in flat panels - G09G 2300/0426: Layout of electrodes and connections - G09G 2310/0262: The addressing of the pixel, in a display other than an active matrix LCD, involving the control of two or more scan electrodes or two or more data electrodes, e.g. pixel voltage dependent on signals of two data electrodes - H10K 59/131: Interconnections, e.g. wiring lines or terminals - H10K 59/88: Dummy elements, i.e. elements having non-functional features - 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 - H10D: INORGANIC ELECTRIC SEMICONDUCTOR DEVICES - H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10 - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract A display apparatus includes: a substrate including a display area and a peripheral area outside the display area; a driving voltage input unit in the peripheral area; a common voltage input unit in the peripheral area and spaced apart from the driving voltage input unit; a signal wiring portion including a plurality of fan-out wirings that overlap the driving voltage input unit and the common voltage input unit; a first dummy wiring portion outside the signal wiring portion and including a plurality of first dummy wirings that overlap the driving voltage input unit; and a second dummy wiring portion outside the signal wiring portion and including a plurality of second dummy wirings that overlap the common voltage input unit. ## Claims ### Claim 1 A display apparatus comprising: a substrate including a display area and a peripheral area outside the display area; a driving voltage input unit in the peripheral area; a common voltage input unit in the peripheral area and spaced apart from the driving voltage input unit; a signal wiring portion including a plurality of fan-out wirings that overlap the driving voltage input unit and the common voltage input unit; a first dummy wiring portion outside the signal wiring portion and including a plurality of first dummy wirings that overlap the driving voltage input unit; and a second dummy wiring portion outside the signal wiring portion and including a plurality of second dummy wirings that overlap the common voltage input unit. ### Claim 2 (depends on 1) The display apparatus of claim 1, wherein the first dummy wiring portion is spaced apart from the second dummy wiring portion. ### Claim 3 (depends on 1) The display apparatus of claim 1, wherein in a plan view, the first dummy wiring portion is inside the driving voltage input unit. ### Claim 4 (depends on 1) The display apparatus of claim 1, wherein in a plan view, the second dummy wiring portion is inside the common voltage input unit. ### Claim 5 (depends on 1) The display apparatus of claim 1, wherein the plurality of fan-out wirings are in a fan-out area, wherein the plurality of fan-out wirings are spaced apart from each other with a first interval at a first edge of the fan-out area adjacent to the display area, and are spaced apart from each other with a second interval at a second edge facing the first edge, and wherein the first interval is greater than the second interval. ### Claim 6 (depends on 5) The display apparatus of claim 5, wherein virtual extension lines respectively extending from the plurality of first dummy wirings are spaced apart from each other with the first interval at the first edge of the fan-out area, and are spaced apart from each other with the second interval at the second edge. ### Claim 7 (depends on 5) The display apparatus of claim 5, wherein virtual extension lines respectively extending from the plurality of second dummy wirings are spaced apart from each other with the first interval at the first edge of the fan-out area, and are spaced apart from each other with the second interval at the second edge. ### Claim 8 (depends on 5) The display apparatus of claim 5, wherein virtual extension lines respectively extending from the plurality of first dummy wirings are parallel to a fan-out wiring in an outermost portion among the plurality of fan-out wirings. ### Claim 9 (depends on 8) The display apparatus of claim 8, wherein virtual extension lines respectively extending from the plurality of first dummy wirings are spaced apart from each other with an interval equal to or less than the first interval at the first edge of the fan-out area. ### Claim 10 (depends on 5) The display apparatus of claim 5, wherein virtual extension lines respectively extending from the plurality of second dummy wirings are parallel to a fan-out wiring in an outermost portion among the plurality of fan-out wirings. ### Claim 11 (depends on 10) The display apparatus of claim 10, wherein virtual extension lines respectively extending from the plurality of second dummy wirings are spaced apart from each other with an interval equal to or greater than the second interval at the second edge of the fan-out area. ### Claim 12 (depends on 1) The display apparatus of claim 1, further comprising: a semiconductor layer in the display area; and a buffer layer under the semiconductor layer, wherein the first dummy wiring portion and the second dummy wiring portion are between the substrate and the buffer layer. ### Claim 13 (depends on 1) The display apparatus of claim 1, further comprising: a semiconductor layer in the display area; a gate insulating layer on the semiconductor layer; and an interlayer insulating layer on the gate insulating layer, wherein the first dummy wiring portion and the second dummy wiring portion are between the gate insulating layer and the interlayer insulating layer. ### Claim 14 (depends on 1) The display apparatus of claim 1, wherein the first dummy wiring is electrically connected to the driving voltage input unit. ### Claim 15 (depends on 14) The display apparatus of claim 14, wherein the first dummy wiring includes contact portions on two opposite ends thereof, the contact portions being electrically connected to the driving voltage input unit. ### Claim 16 (depends on 1) The display apparatus of claim 1, wherein the second dummy wiring is electrically connected to the common voltage input unit. ### Claim 17 (depends on 16) The display apparatus of claim 16, wherein the second dummy wiring includes contact portions on two opposite ends thereof, the contact portions being electrically connected to the driving voltage input unit. ### Claim 18 (depends on 1) The display apparatus of claim 1, wherein the driving voltage input unit and the common voltage input unit are each provided in plurality, the plurality of driving voltage input units and the plurality of common voltage input units being alternately arranged in a first direction. ### Claim 19 (depends on 18) The display apparatus of claim 18, wherein the first dummy wiring portion includes a (1-1)st dummy wiring portion and a (1-2)nd dummy wiring portion that are symmetrical to each other with respect to a central line of the driving voltage input unit extending in a second direction crossing the first direction. ### Claim 20 (depends on 18) The display apparatus of claim 18, wherein the second dummy wiring portion includes a (2-1)st dummy wiring portion and a (2-2)nd dummy wiring portion that are symmetrical to each other with respect to a central line of the driving voltage input unit extending in a second direction crossing the first direction.