{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-10491868","patent":{"patent_number":"US-10491868","title":"Projection video display apparatus","assignee":null,"inventors":[],"filing_date":"2016-08-05T00:00:00.000Z","publication_date":"2019-11-26T00:00:00.000Z","cpc_codes":["H04N","G09G","G09G","H04N","H04N","H04N","H04N","H04N","G09G"],"num_claims":10,"abstract":"A projection video display apparatus includes an input unit to input a video signal; a display to display the inputted video signal; a plurality of light sources to generate light; an illumination optical system to guide the generated light to the display; a projection optical system to project light via the display; and a controller to control the light sources, a lighting ratio and a current value per time for each light source. The controller has a black display control mode, for each light source, which makes a relative rate of a lighting ratio for a light source with a specific color smaller than the other light sources, and reduces the current value of the other light sources to be less than a current value of the light source with the specific color when compared with a case where the input video signal is a white signal."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Projection video display apparatus","description":"A projection video display apparatus includes an input unit to input a video signal; a display to display the inputted video signal; a plurality of light sources to generate light; an illumination opt","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-10491868","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-10491868","citation_suggestion":"Patentable. \"Projection video display apparatus\" (US-10491868). https://patentable.app/patents/US-10491868","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-10491868","json":"https://patentable.app/api/llm-context/US-10491868","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T19:36:15.133Z"}