{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9620044","patent":{"patent_number":"US-9620044","title":"Image display device and drive method therefor","assignee":null,"inventors":[],"filing_date":"2013-09-27T00:00:00.000Z","publication_date":"2017-04-11T00:00:00.000Z","cpc_codes":["G09G","G09G","G09G","G09G","G09G","G09G","G09G","G09G"],"num_claims":20,"abstract":"The image display device includes a front CF-less liquid crystal panel, a first light guide plate, a PDLC panel, and a rear CF-less liquid crystal panel that are arranged sequentially, and a light-guide plate light source unit. At an image displaying time, the PDLC panel becomes in a spreading state. At this time, light source light emitted by the light-guide plate light source unit is guided to the first light guide plate, and is applied to the PDLC panel. The light source light spread by the PDLC panel is applied to the front CF-less liquid crystal panel and the rear CF-less liquid crystal panel. At an image non-displaying time, the PDLC panel becomes in a transmittance state, and transmits background light."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Image display device and drive method therefor","description":"The image display device includes a front CF-less liquid crystal panel, a first light guide plate, a PDLC panel, and a rear CF-less liquid crystal panel that are arranged sequentially, and a light-gui","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9620044","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-9620044","citation_suggestion":"Patentable. \"Image display device and drive method therefor\" (US-9620044). https://patentable.app/patents/US-9620044","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9620044","json":"https://patentable.app/api/llm-context/US-9620044","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:21:18.575Z"}