{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8471980","patent":{"patent_number":"US-8471980","title":"Backlight unit and liquid crystal display device having the same","assignee":null,"inventors":[],"filing_date":"2009-09-15T00:00:00.000Z","publication_date":"2013-06-25T00:00:00.000Z","cpc_codes":["G02F","G02F"],"num_claims":6,"abstract":"A backlight unit with uniform brightness (luminance) is disclosed.The backlight unit includes: a plurality of light sources arranged at a fixed interval; a diffusion plate disposed on the light sources to primarily diffuse light emitted from the light sources; and a diffusion sheet configured to secondarily diffuse the primarily diffused light from the diffusion plate, wherein the surface of the diffusion sheet is divided into first regions not opposite to the light and second regions opposite to the light sources, and the diffusion sheet includes lens pattern portions formed on the second regions."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Backlight unit and liquid crystal display device having the same","description":"A backlight unit with uniform brightness (luminance) is disclosed.The backlight unit includes: a plurality of light sources arranged at a fixed interval; a diffusion plate disposed on the light source","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8471980","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-8471980","citation_suggestion":"Patentable. \"Backlight unit and liquid crystal display device having the same\" (US-8471980). https://patentable.app/patents/US-8471980","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8471980","json":"https://patentable.app/api/llm-context/US-8471980","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T15:31:55.454Z"}