{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-10490161","patent":{"patent_number":"US-10490161","title":"Projection device and luminance control method of frame thereof","assignee":null,"inventors":[],"filing_date":"2014-07-09T00:00:00.000Z","publication_date":"2019-11-26T00:00:00.000Z","cpc_codes":["G09G","G09G","H04N","G09G","G09G"],"num_claims":14,"abstract":"A projection device and a luminance control method of a frame are provided. The luminance control method of the frame includes the following steps. Whether the frame is a dark-like frame or not is determined according to a gray level distribution of the frame and whether at least one sub-frame of the frame is a dark-like sub-frame or not is determined according to a gray level distribution of the sub-frame. When the frame is the dark-like frame and the sub-frame is not the dark-like sub-frame, a corresponding area of the sub-frame is ignored and a reference value of luminance is computed according to a part corresponding to the unignored area in the frame. The luminance of a projection light of the projection device is adjusted according to the reference value of luminance."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Projection device and luminance control method of frame thereof","description":"A projection device and a luminance control method of a frame are provided. The luminance control method of the frame includes the following steps. Whether the frame is a dark-like frame or not is det","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-10490161","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-10490161","citation_suggestion":"Patentable. \"Projection device and luminance control method of frame thereof\" (US-10490161). https://patentable.app/patents/US-10490161","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-10490161","json":"https://patentable.app/api/llm-context/US-10490161","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T08:00:38.176Z"}