{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9680076","patent":{"patent_number":"US-9680076","title":"Light-emitting device, illumination device and backlight for display device","assignee":null,"inventors":[],"filing_date":"2013-05-15T00:00:00.000Z","publication_date":"2017-06-13T00:00:00.000Z","cpc_codes":["H01L","H01L","H01L"],"num_claims":28,"abstract":"An LED chip (3) is disposed in a recessed portion (21p) formed by bending a metal lead frame (2). A reflector (4) has a resin reflection surface (4a) and the recessed portion (21p) has a metal reflection surface (21a). When the inclination angle of at least one metal reflection surface (21a) is θs2(°), the resin reflection surface (4a) has a sloped resin surface with an inclination angle of θs1(°) that is smaller than θs2(°). With θc(°) defined as the critical angle of light emitted from an LED chip (3) and incident on the interface between a light-transmissive resin (5) and an air layer, the sloped resin surface and metal reflection surface having a relationship of θs1<θs2, satisfies both a conditional expression (1): 45°−θc/2<θs1<θc and a conditional expression (2): 35°≦θs2≦55°."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Light-emitting device, illumination device and backlight for display device","description":"An LED chip (3) is disposed in a recessed portion (21p) formed by bending a metal lead frame (2). A reflector (4) has a resin reflection surface (4a) and the recessed portion (21p) has a metal reflect","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9680076","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-9680076","citation_suggestion":"Patentable. \"Light-emitting device, illumination device and backlight for display device\" (US-9680076). https://patentable.app/patents/US-9680076","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9680076","json":"https://patentable.app/api/llm-context/US-9680076","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T11:14:58.004Z"}