{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9634203","patent":{"patent_number":"US-9634203","title":"Light emitting device, surface light source, liquid crystal display device, and method for manufacturing light emitting device","assignee":null,"inventors":[],"filing_date":"2009-05-29T00:00:00.000Z","publication_date":"2017-04-25T00:00:00.000Z","cpc_codes":["G02F","G02F","H01L","H01L","H01L","H01L"],"num_claims":15,"abstract":"A light emitting device includes: a substrate having a main surface; a phosphor layer provided on the main surface and containing an LED element that emits primary light and a fluorescent particle that absorbs a part of the primary light and emits secondary light; and a transparent resin layer having a refractive index n and covering the phosphor layer. The transparent resin layer has an outer circumferential surface that forms a boundary between the transparent resin layer and the atmosphere. When a minimum circumference that includes the overall phosphor layer and is concentric with the outer circumferential surface has a radius r in a cut surface where at least a part of the outer circumferential surface takes a shape of an arc having a radius R, a relationship of R>r·n is satisfied. With such configuration, the light extraction efficiency is enhanced."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Light emitting device, surface light source, liquid crystal display device, and method for manufacturing light emitting device","description":"A light emitting device includes: a substrate having a main surface; a phosphor layer provided on the main surface and containing an LED element that emits primary light and a fluorescent particle tha","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9634203","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-9634203","citation_suggestion":"Patentable. \"Light emitting device, surface light source, liquid crystal display device, and method for manufacturing light emitting device\" (US-9634203). https://patentable.app/patents/US-9634203","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9634203","json":"https://patentable.app/api/llm-context/US-9634203","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:36:49.270Z"}