# US 12,111,699 B2 · Display device having holes in line units to reduce crack propagation > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,111,699 B2 - Document ID: US12111699B2 - Status: Granted - Kind: B2 - Application number: 18/464,032 - Filed: 2023-09-08 - Published: 2024-05-30 - Granted: 2024-10-08 - Earliest claimed: 2022-11-25 - Assignees: LG Display Co., Ltd. - Applicants: LG Display Co., Ltd. - Inventors: SungJoon Min; HaeYoon Jung; Sujin Ham; MyungSub Lim; YuRa Jeong; Heewon Kim - Web page: https://patentgrep.com/patent/US12111699B2 ## CPC - G06F 1/1652: {the display being flexible, e.g. mimicking a sheet of paper, or rollable} - G06F 1/1601: {Constructional details related to the housing of computer displays, e.g. of CRT monitors, of flat displays (constructional details related to flat displays integrated in a portable computer, e.g. laptop, handheld computer G06F1/1637; constructional details related to television receivers H04N5/64)} - G06F 1/1656: {Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories (mounting of accessories to a computer display G06F1/1607; display hoods G06F1/1603; cooling arrangements for portable computers G06F1/203)} - G06F 1/1637: {Details related to the display arrangement, including those related to the mounting of the display in the housing} - G06F 2200/1612: Flat panel monitor - H05K 1/0283: {Stretchable printed circuits} - H10K 59/131: Interconnections, e.g. wiring lines or terminals - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract According to an aspect of the present disclosure, a display device includes a stretchable lower substrate; a plurality of plate patterns on the lower substrate and spaced apart from each other, a plurality of line units between the plurality of plate patterns; a plurality of holes in a peak area of the plurality of line units; and a plurality of conductive members filled in the plurality of holes. Accordingly, the plurality of holes are formed in a peak area in which the stress is concentrated so that when the crack is generated, the crack may be blocked so as not to propagate to the other part of the line unit from the plurality of holes. ## Claims ### Claim 1 A display device, comprising: a stretchable lower substrate; a plurality of plate patterns on the stretchable lower substrate, the plurality of plate patterns spaced apart from each other; a plurality of line units between the plurality of plate patterns, each line unit including a first U shaped portion having a curved peak area pointing towards a first direction in a plan view of the display device and a second U shaped portion having a curved peak area pointing towards a second direction that is opposite the first direction in the plan view, the first U shaped portion connected to the second U shaped portion in the plan view; a plurality of holes including a first hole in the curved peak area of the first U shaped portion and a second hole in the curved peak area of the second U shaped portion; and a plurality of conductive members which are filled in the plurality of holes. ### Claim 2 (depends on 1) The display device according to claim 1, wherein the plurality of line units comprises: a plurality of line patterns which connects the plurality of plate patterns on the stretchable lower substrate; and a plurality of connection lines on the plurality of line patterns. ### Claim 3 (depends on 2) The display device according to claim 2, wherein the plurality of holes are in the plurality of connection lines. ### Claim 4 (depends on 3) The display device according to claim 3, wherein the plurality of holes extend from the plurality of connection lines to the plurality of line patterns. ### Claim 5 (depends on 3) The display device according to claim 3, wherein the plurality of conductive members are electrically connected to the plurality of connection lines. ### Claim 6 (depends on 1) The display device according to claim 1, wherein the plurality of conductive members comprise a liquid metal. ### Claim 7 (depends on 1) The display device according to claim 1, wherein a diameter of each of the plurality of holes is smaller than widths of the plurality of line units. ### Claim 8 (depends on 1) The display device according to claim 1, wherein the plurality of line units has a sinusoidal shape and the peak area corresponds to an area of the plurality of line units having a largest amplitude. ### Claim 9 (depends on 8) The display device according to claim 8, wherein the plurality of holes are a crack stopper of the plurality of line units. ### Claim 10 A display device, comprising: a stretchable lower substrate; a plurality of plate patterns on the stretchable lower substrate, the plurality of plate patterns spaced apart from each other; a plurality of line patterns between the plurality of plate patterns; a plurality of connection lines on the plurality of line patterns, each connection line including a first U shaped portion having a curved peak area pointing towards a first direction in a plan view of the display device and a second U shaped portion having a curved peak area pointing towards a second direction that is opposite the first direction in the plan view, the first U shaped portion connected to the second U shaped portion in the plan view; a plurality of crack stoppers including a first crack stopper in the curved peak area of the first U shaped portion and a second crack stopper in the curved peak area of the second U shaped portion; and a plurality of conductive members filled in the plurality of crack stoppers, wherein the plurality of crack stoppers comprise holes which pass through the plurality of connection lines. ### Claim 11 (depends on 10) The display device according to claim 10, wherein the plurality of crack stoppers are configured to block a crack which is directed to the plurality of crack stoppers in an inner circumferential surface or an outer circumferential surface of the peak area of the plurality of connection lines from propagating to another part of the peak area. ### Claim 12 (depends on 10) The display device according to claim 10, wherein the plurality of crack stoppers are further disposed in the plurality of line patterns and the plurality of crack stoppers which are disposed in the plurality of line patterns and each of the plurality of connection lines overlaps each other. ### Claim 13 (depends on 10) The display device according to claim 10, wherein the plurality of conductive members are in contact with the plurality of connection lines in the plurality of crack stoppers to reduce resistance of the plurality of connection lines.