{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9645444","patent":{"patent_number":"US-9645444","title":"Inverse wavelength dispersion retardation film and display device including the same","assignee":null,"inventors":[],"filing_date":"2014-01-14T00:00:00.000Z","publication_date":"2017-05-09T00:00:00.000Z","cpc_codes":["G02F","G02F","G02F","G02F","G02F","G02F","G02F","G02F"],"num_claims":18,"abstract":"A retardation film including: a first optical anisotropic layer including a polymer material; and a second optical anisotropic layer including a liquid crystal material, in which the first optical anisotropic layer has refractive indices which satisfy the following inequation: nz1≧nx1>ny1, the second optical anisotropic layer has refractive indices which satisfy the following inequation: nx2>ny2≧nz2, a fast axis of the first optical anisotropic layer and a slow axis of the second optical anisotropic layer form a predetermined angle such that refractive indices of the retardation film satisfy the following inequation: 0<(nx0−nz0)/(nx0−ny0)<1, and in-plane retardation values (Re0) of the retardation film respectively at a wavelength of about 450 nanometers, 550 nanometers and 650 nanometers satisfy the following inequation: Re0 (450 nm)<Re0 (550 nm)<Re0 (650 nm)."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Inverse wavelength dispersion retardation film and display device including the same","description":"A retardation film including: a first optical anisotropic layer including a polymer material; and a second optical anisotropic layer including a liquid crystal material, in which the first optical ani","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9645444","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-9645444","citation_suggestion":"Patentable. \"Inverse wavelength dispersion retardation film and display device including the same\" (US-9645444). https://patentable.app/patents/US-9645444","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9645444","json":"https://patentable.app/api/llm-context/US-9645444","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T15:38:41.737Z"}