# US 12,600,111 B2 · Elastic member and display device comprising same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,600,111 B2 - Document ID: US12600111B2 - Status: Granted - Kind: B2 - Application number: 18/038,906 - Filed: 2022-08-16 - Published: 2024-01-18 - Granted: 2026-04-14 - Earliest claimed: 2021-09-06 - Assignees: LG Innotek Co., Ltd. - Applicants: LG Innotek Co., Ltd. - Inventors: Sung Won Kang - Web page: https://patentgrep.com/patent/US12600111B2 ## CPC - B32B 15/14: next to a fibrous or filamentary layer - B32B 3/266: {characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12} - B32B 5/12: characterised by the relative arrangement of fibres or filaments of {different layers, e.g. the fibres or filaments being parallel or perpendicular to each other} - B32B 7/022: Mechanical properties - B32B 7/12: using interposed adhesives or interposed materials with bonding properties - B32B 9/007: {comprising carbon, e.g. graphite, composite carbon} - B32B 9/041: {of metal} - B32B 17/02: in the form of fibres or filaments - B32B 37/1284: {Application of adhesive} - C08J 5/04: Reinforcing macromolecular compounds with loose or coherent fibrous material - G06F 3/041: Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means - G09F 9/30: in which the desired character or characters are formed by combining individual elements (panels comprising a number of electrodes in a single cell controlling light arriving from an independent light source, e.g. electro-optical or magneto-optical cell, G02F1/00) - B32B 2260/021: Fibrous or filamentary layer - B32B 2260/046: Synthetic resin - B32B 2262/101: Glass fibres - B32B 2262/105: Ceramic fibres - B32B 2262/106: Carbon fibres, e.g. graphite fibres - B32B 2307/51: Elastic - B32B 2307/732: Dimensional properties - B32B 2307/7376: Thickness - B32B 2457/20: Displays, e.g. liquid crystal displays, plasma displays - B32B 2457/208: Touch screens - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM - C08J: WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H (working, e.g. shaping, of plastics B29) - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS ## Abstract An elastic member according to an embodiment includes: a first region and a second region, wherein a first direction is defined as a width direction of the elastic member and a second direction defined as a longitudinal direction of the elastic member, wherein the first region is defined as a folding region that is folded with the first direction as a folding axis, and the second region is defined as an unfolding region, wherein the elastic member includes a first layer and a second layer on the first layer; wherein the second layer includes a base material and fibers disposed inside the base material, wherein the fibers are disposed while extending in the second direction. ## Claims ### Claim 1 An elastic member foldable with respect to a folding axis, the elastic member comprising: a first region and a second region, wherein a first direction is defined as a width direction of the elastic member and is a same direction as a direction in which the folding axis extends and a second direction is defined as a longitudinal direction of the elastic member and is a direction perpendicular to the direction in which the folding axis extends and the first direction, wherein the first region is defined as a folding region that is folded with the first direction as the folding axis, and the second region is defined as an unfolding region, wherein the elastic member includes a first layer, a second layer disposed on the first layer, and a third layer disposed between the first layer and the second layer, wherein the first layer includes a metal, wherein the second layer includes a base material and fibers disposed inside the base material, wherein the fibers provided in the second layer are disposed in the second layer to extend in the second direction, which is a direction perpendicular to the direction in which the folding axis extends and the first direction, wherein the third layer is an adhesive layer disposed between the first layer and the second layer, wherein the first layer includes a first void disposed in the first region of the first layer, and wherein the third layer includes a second void disposed in the first region of the third layer. ### Claim 2 (depends on 1) The elastic member of claim 1, wherein a thickness of the second layer is 15 μm to 200 μm. ### Claim 3 (depends on 1) The elastic member of claim 1, further comprising an alignment mark, wherein the alignment mark is disposed on the surface of the second layer and defines the longitudinal direction of the fibers. ### Claim 4 (depends on 1) The elastic member of claim 1, wherein the first layer further comprises non-metal. ### Claim 5 (depends on 1) The elastic member of claim 1, wherein a diameter of the fibers is 0.0001 mm to 0.01 mm. ### Claim 6 (depends on 1) The elastic member of claim 1, wherein the second layer includes a 1a region corresponding to the first region and a 2a region corresponding to the second region, wherein the fibers are disposed in the 1a region and the 2a region. ### Claim 7 (depends on 6) The elastic member of claim 6, wherein an overlapping region between the fibers and the 1a region is greater than an overlapping region between the fibers and the 2a region. ### Claim 8 (depends on 6) The elastic member of claim 6, wherein an overlapping region between the fibers and the 1a region is smaller than an overlapping region between the fibers and the 2a region. ### Claim 9 (depends on 6) The elastic member of claim 6, wherein a volume % of the fibers with respect to the total area of the 2a region is smaller than the volume % of the fibers with respect to the total area of the 1a region. ### Claim 10 (depends on 1) The elastic member of claim 1, wherein the second layer includes a 1a region corresponding to the first region and a 2a region corresponding to the second region, wherein the fibers are disposed in any one of the 1a region and the 2a region. ### Claim 11 (depends on 1) The elastic member of claim 1, wherein the second layer further comprises fibers that extend tilted with respect to the longitudinal direction of the first layer. ### Claim 12 (depends on 1) The elastic member of claim 1, wherein the first layer includes a first base material and a first fiber, wherein the second layer includes a second base material and a second fiber. ### Claim 13 (depends on 12) The elastic member of claim 12, wherein the first base material and the second base material include different materials, wherein the first fiber and the second fiber include different materials. ### Claim 14 (depends on 1) The elastic member of claim 1, wherein the first void and the second void have different widths. ### Claim 15 (depends on 1) The elastic member of claim 1, wherein a width of the first void is smaller than a width of the second void. ### Claim 16 (depends on 1) A display device comprising: an elastic member of claim 1; a protective layer under the elastic member; an adhesive layer on the elastic member; and a panel layer on the adhesive layer, wherein the panel layer includes at least one of a display panel and a touch panel.