{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9678384","patent":{"patent_number":"US-9678384","title":"Retardation film, composition, method of manufacturing retardation film, polarizing plate and liquid crystal display device","assignee":null,"inventors":[],"filing_date":"2015-10-19T00:00:00.000Z","publication_date":"2017-06-13T00:00:00.000Z","cpc_codes":["G02F","G02F"],"num_claims":14,"abstract":"An object of the present invention is to provide a film capable of giving a necessary retardation without degrading the contrast. The present invention provides a retardation film formed from a composition which includes a polymer compound, a rod-like liquid crystal compound and a photo-reactive compound, wherein the polymer compound has a side chain which has one or more azo groups and/or cynnamate groups, and 3 or more and 10 or less arylene groups; the side chain further has an optionally substituted amino group, or a hydrocarbon group at the terminal; an absolute value of difference between an SP value of the polymer compound and an SP value of the photo-reactive compound is 1.1 or less; and an in-plane retardation of the film at wavelength of 550 nm is 10 nm or more and 200 nm or less."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Retardation film, composition, method of manufacturing retardation film, polarizing plate and liquid crystal display device","description":"An object of the present invention is to provide a film capable of giving a necessary retardation without degrading the contrast. The present invention provides a retardation film formed from a compos","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9678384","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-9678384","citation_suggestion":"Patentable. \"Retardation film, composition, method of manufacturing retardation film, polarizing plate and liquid crystal display device\" (US-9678384). https://patentable.app/patents/US-9678384","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9678384","json":"https://patentable.app/api/llm-context/US-9678384","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T08:00:19.836Z"}