{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9633620","patent":{"patent_number":"US-9633620","title":"GOA circuit and liquid crystal display device","assignee":null,"inventors":[],"filing_date":"2015-01-12T00:00:00.000Z","publication_date":"2017-04-25T00:00:00.000Z","cpc_codes":["G09G","G09G","G11C","G09G","G09G","G09G","G09G","G09G"],"num_claims":20,"abstract":"The invention provides a GOA circuit and a liquid crystal display device each including multiple cascade connected GOA units. An nth-stage GOA unit is for charging an nth-stage horizontal scan line in a display area. The nth-stage GOA unit includes a pull-up control circuit, a pull-up circuit, a transfer circuit, a first pull-down control circuit, a first pull-down circuit, a second pull-down control circuit, a second pull-down circuit and a main pull-down circuit, where n is a positive integer. The invention can improve the stage-transfer efficiency of GOA circuit, improve the output quality of scan drive signal so as to increase charging ratio of LCD tubes and also can accelerate the pull-down speed of scan drive signal."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"GOA circuit and liquid crystal display device","description":"The invention provides a GOA circuit and a liquid crystal display device each including multiple cascade connected GOA units. An nth-stage GOA unit is for charging an nth-stage horizontal scan line in","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9633620","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-9633620","citation_suggestion":"Patentable. \"GOA circuit and liquid crystal display device\" (US-9633620). https://patentable.app/patents/US-9633620","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9633620","json":"https://patentable.app/api/llm-context/US-9633620","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T07:20:31.272Z"}