{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9805975","patent":{"patent_number":"US-9805975","title":"Thin-film transistor array substrate including gate-underlying stepped layer and etch-stopper, and organic light emitting display including the same","assignee":null,"inventors":[],"filing_date":"2015-11-20T00:00:00.000Z","publication_date":"2017-10-31T00:00:00.000Z","cpc_codes":["H01L"],"num_claims":27,"abstract":"A thin-film transistor (TFT) array substrate includes a substrate, a gate-underlying stepped layer disposed on the substrate, a gate electrode disposed on the gate-underlying stepped layer, a semiconductor layer formed over the gate electrode, and an etch-stopper disposed on the semiconductor layer. The gate-underlying stepped layer is formed under the gate electrode and has a width greater than a width of the gate electrode."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Thin-film transistor array substrate including gate-underlying stepped layer and etch-stopper, and organic light emitting display including the same","description":"A thin-film transistor (TFT) array substrate includes a substrate, a gate-underlying stepped layer disposed on the substrate, a gate electrode disposed on the gate-underlying stepped layer, a semicond","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9805975","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-9805975","citation_suggestion":"Patentable. \"Thin-film transistor array substrate including gate-underlying stepped layer and etch-stopper, and organic light emitting display including the same\" (US-9805975). https://patentable.app/patents/US-9805975","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9805975","json":"https://patentable.app/api/llm-context/US-9805975","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:18:08.520Z"}