{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11257991","patent":{"patent_number":"US-11257991","title":"Light emitting device, backlight unit and display apparatus","assignee":null,"inventors":[],"filing_date":"2020-01-02T00:00:00.000Z","publication_date":"2022-02-22T00:00:00.000Z","cpc_codes":["H01L"],"num_claims":20,"abstract":"A light emitting device includes a first LED chip to emit a light having a peak wavelength in a range of 410 to 430 nm, a second LED chip to emit a light having a peak wavelength in a range of 440 to 460 nm, a first quantum dot to convert light emitted by the first and second LED chips into light having a peak wavelength in a range of 510 to 550 nm, and a second quantum dot to convert light emitted by the first and second LED chips into light having a peak wavelength in a range of 610 to 660 nm, wherein, in an emission spectrum of final light, intensity of a peak wavelength of the first LED chip is 15% or less of intensity of a peak wavelength of the second LED chip."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Light emitting device, backlight unit and display apparatus","description":"A light emitting device includes a first LED chip to emit a light having a peak wavelength in a range of 410 to 430 nm, a second LED chip to emit a light having a peak wavelength in a range of 440 to ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11257991","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-11257991","citation_suggestion":"Patentable. \"Light emitting device, backlight unit and display apparatus\" (US-11257991). https://patentable.app/patents/US-11257991","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11257991","json":"https://patentable.app/api/llm-context/US-11257991","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T20:59:35.399Z"}