{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9720280","patent":{"patent_number":"US-9720280","title":"Compensation film and optical film, and display device","assignee":null,"inventors":[],"filing_date":"2014-03-13T00:00:00.000Z","publication_date":"2017-08-01T00:00:00.000Z","cpc_codes":["G02F","G02F","G02F"],"num_claims":21,"abstract":"A compensation film includes: a first retardation layer including a polymer; a second retardation layer including a liquid crystal having positive birefringence; and a compensation layer including a liquid crystal having a vertical alignment property, where an angle between slow axes of the first and second retardation layers is in a range of about 85 to about 95 degrees, an entire in-plane retardation (Re0) of the first retardation layer, the second retardation layer and the compensation layer for wavelengths of 450 nm, 550 nm and 650 nm satisfy the following inequation: Re0(450 nm)<Re0(550 nm)<Re0(650 nm), an in-plane retardation (Re3) of the compensation layer for the incident light having a wavelength of about 550 nm is in a range of about zero to about 50 nm, and a thickness direction retardation (Rth3) of the compensation layer for the incident light is less than zero."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Compensation film and optical film, and display device","description":"A compensation film includes: a first retardation layer including a polymer; a second retardation layer including a liquid crystal having positive birefringence; and a compensation layer including a l","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9720280","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-9720280","citation_suggestion":"Patentable. \"Compensation film and optical film, and display device\" (US-9720280). https://patentable.app/patents/US-9720280","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9720280","json":"https://patentable.app/api/llm-context/US-9720280","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:49:03.222Z"}