# US 12,001,238 B2 · Display device and manufacturing method thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,001,238 B2 - Document ID: US12001238B2 - Status: Granted - Kind: B2 - Application number: 17/144,657 - Filed: 2021-01-08 - Published: 2021-12-23 - Granted: 2024-06-04 - Earliest claimed: 2020-06-19 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., LTD. - Inventors: Tae Hyun Kim; Jonghyun Choi; Jiryun Park; Seokje Seong - Web page: https://patentgrep.com/patent/US12001238B2 ## CPC - G06F 1/1637: {Details related to the display arrangement, including those related to the mounting of the display in the housing} - B32B 3/04: characterised by {at least one} layer folded at the edge, e.g. over another layer {; characterised by at least one layer enveloping or enclosing a material} - 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 7/023: Optical properties - B32B 7/12: using interposed adhesives or interposed materials with bonding properties - B32B 27/36: comprising polyesters - G02B 1/11: Anti-reflection coatings - G02B 1/14: Protective coatings, e.g. hard coatings - G02B 5/3033: {in the form of a thin sheet or foil, e.g. Polaroid} - G06F 1/1607: {Arrangements to support accessories mechanically attached to the display housing (G06F1/1603, G06F1/1605 take precedence)} - G06F 1/1643: {the display being associated to a digitizer, e.g. laptops that can be used as penpads (details related to the relative motion of the display enclosure with respect to the body enclosure, e.g. to move between laptop and tablet PC configuration G06F1/1615)} - G06F 1/1652: {the display being flexible, e.g. mimicking a sheet of paper, or rollable} - G06F 1/1658: {related to the mounting of internal components, e.g. disc drive or any other functional module} - G09F 9/301: {flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED} - H10K 59/8791: {Arrangements for improving contrast, e.g. preventing reflection of ambient light} - B32B 2250/44: Number of layers variable across the laminate - B32B 2307/42: Polarizing, birefringent, filtering - B32B 2457/20: Displays, e.g. liquid crystal displays, plasma displays - B32B 2457/206: Organic displays, e.g. OLED - H10K 59/131: Interconnections, e.g. wiring lines or terminals - H10K 59/8731: {multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers} - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract A display device may include a display panel, and an anti-reflection layer disposed on the display panel. The display panel may include a first area including a first alignment mark, a bending area extending from the first area, and a second area extending from the bending area. The anti-reflection layer may include a second alignment mark overlapping the second area in a plan view. ## Claims ### Claim 1 A display device comprising: a display panel; and an anti-reflection layer disposed on the display panel, wherein the display panel comprises: a first area including a first alignment mark; a bending area extending from the first area; and a second area extending from the bending area in a direction opposite the first area, wherein the anti-reflection layer includes a second alignment mark overlapping the second area in a plan view, the first alignment mark and the second alignment mark are disposed on different layers, when viewed in a plan, the bending area is disposed between the first alignment mark and the second alignment mark, the bending area is bent, in case that the bending area is bent, the second area is disposed below the first area, and in case the display device is viewed from bottom to top, the second alignment marks and the first alignment marks are aligned with each other. ### Claim 2 (depends on 1) The display device of claim 1, wherein the second alignment mark is defined on a surface of the anti-reflection layer. ### Claim 3 (depends on 1) The display device of claim 1, wherein the anti-reflection layer comprises: a polarization film; and a hard coating layer disposed on the polarization film, wherein the second alignment mark is defined on the hard coating layer. ### Claim 4 (depends on 1) The display device of claim 1, wherein the first alignment mark and the second alignment mark are adjacent to the bending area. ### Claim 5 (depends on 1) The display device of claim 1, wherein the first alignment mark has a shape different from a shape of the second alignment mark. ### Claim 6 (depends on 1) The display device of claim 1, wherein the first area comprises: a display area comprising a pixel; and a non-display area adjacent to the display area, wherein the first alignment mark is defined in the non-display area. ### Claim 7 (depends on 6) The display device of claim 6, wherein the pixel comprises: a transistor; and a light emitting element electrically connected to the transistor, wherein the first alignment mark and a conductive pattern of the transistor are disposed on a same layer. ### Claim 8 (depends on 7) The display device of claim 7, wherein the first alignment mark and the conductive pattern include a same material and are simultaneously formed by patterning. ### Claim 9 (depends on 1) The display device of claim 1, further comprising: a driver spaced apart from the anti-reflection layer and disposed in the second area; and a cover tape disposed in the second area to cover the driver, wherein the cover tape is disposed on the anti-reflection layer disposed in the second area, and the cover tape does not overlap the second alignment mark. ### Claim 10 (depends on 1) The display device of claim 1, wherein the first area, the bending area, and the second area are arranged in a first direction, and the bending area extends in a second direction crossing the first direction. ### Claim 11 (depends on 10) The display device of claim 10, wherein the first alignment mark is provided in plurality, and the plurality of first alignment marks are disposed adjacent to sides of the first area which are opposite to each other in the second direction. ### Claim 12 (depends on 10) The display device of claim 10, wherein the second alignment mark is provided in plurality, and the plurality of second alignment marks are disposed adjacent to sides of the second area which are opposite to each other in the second direction. ### Claim 13 (depends on 10) The display device of claim 10, wherein the first alignment mark and the second alignment mark are aligned with a horizontal line parallel to the second direction in case that the bending area is bent, and the second alignment mark is spaced from the first alignment mark in the second direction in case that the bending area is bent. ### Claim 14 (depends on 1) The display device of claim 1, further comprising: a panel protective film disposed below the display panel and in which an opening portion overlapping the bending area is defined; an input sensing part disposed in the first area; and a window disposed on the input sensing part, wherein the anti-reflection layer is disposed in the first area and between the input sensing part and the window, the anti-reflection layer extending into the bending area and the second area. ### Claim 15 (depends on 1) The display device of claim 1, wherein the first alignment mark and the second alignment mark have a same shape. ### Claim 16 (depends on 1) The display device of claim 1, wherein the first area and the second area are both disposed on a common substrate, and the first alignment mark is disposed directly on the substrate. ### Claim 17 (depends on 16) The display device of claim 16, wherein the second alignment mark is spaced apart from the substrate.