{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11971626","patent":{"patent_number":"US-11971626","title":"Barrier film, wavelength conversion sheet, back light, and display device","assignee":null,"inventors":[],"filing_date":"2021-03-24T00:00:00.000Z","publication_date":"2024-04-30T00:00:00.000Z","cpc_codes":["G02F","G02F","G02F"],"num_claims":12,"abstract":"Provided are a barrier film having superior close adhesion to a phosphor layer when used for a wavelength conversion sheet, a wavelength conversion sheet having the barrier film, and a backlight and a display device including the wavelength conversion sheet. A barrier film for a wavelength conversion sheet, comprising: a barrier layer; and a primer layer, wherein the primer layer comprises a cured product of a polyurethane-based resin composition, and when a surface of an opposite side of the primer layer from the barrier layer is subjected to X-ray photoelectron spectroscopy to obtain a C1s spectrum, P2/P1 is 0.55 or more, where P1 is an area of a peak assigned to a C—C bond in the C1s spectrum and P2 is an area of a peak assigned to a C—O bond in the C1s spectrum."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Barrier film, wavelength conversion sheet, back light, and display device","description":"Provided are a barrier film having superior close adhesion to a phosphor layer when used for a wavelength conversion sheet, a wavelength conversion sheet having the barrier film, and a backlight and a","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11971626","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-11971626","citation_suggestion":"Patentable. \"Barrier film, wavelength conversion sheet, back light, and display device\" (US-11971626). https://patentable.app/patents/US-11971626","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11971626","json":"https://patentable.app/api/llm-context/US-11971626","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T07:01:45.374Z"}