{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8474980","patent":{"patent_number":"US-8474980","title":"Projection autostereoscopic display and stereo screen","assignee":null,"inventors":[],"filing_date":"2011-04-13T00:00:00.000Z","publication_date":"2013-07-02T00:00:00.000Z","cpc_codes":["H04N","H04N","H04N","H04N","H04N"],"num_claims":26,"abstract":"A projection autostereoscopic display including an image projector and a stereo screen is provided. The image projector projects an image. The image includes multiple viewing-zone images. The stereo screen receives the image and reflects the image to an observing direction. The stereo screen includes a linear polarizer layer, for receiving and polarizing the image. A first microretarder layer is disposed behind the linear polarizer layer. A second microretarder layer is disposed behind the first microretarder layer by a distance. A reflection-type polarization-reserved diffuser layer is disposed behind the second microretarder layer for reflecting and diffusing the image into various directions while maintaining the polarization state of the image. A switching layer is switched between a transparent state which maintains the polarization state of the image and an opaque state which changes the polarization states of the image to a non-polarization state, to switch between 2D and 3D display modes."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Projection autostereoscopic display and stereo screen","description":"A projection autostereoscopic display including an image projector and a stereo screen is provided. The image projector projects an image. The image includes multiple viewing-zone images. The stereo s","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8474980","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-8474980","citation_suggestion":"Patentable. \"Projection autostereoscopic display and stereo screen\" (US-8474980). https://patentable.app/patents/US-8474980","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8474980","json":"https://patentable.app/api/llm-context/US-8474980","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T18:35:34.355Z"}