{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9766521","patent":{"patent_number":"US-9766521","title":"Method for manufacturing black matrix with easy recognition of alignment mark","assignee":null,"inventors":[],"filing_date":"2015-10-10T00:00:00.000Z","publication_date":"2017-09-19T00:00:00.000Z","cpc_codes":["G02F","G02F","H01L","H01L","H01L","G02F","G02F","H01L"],"num_claims":12,"abstract":"The present invention provides a manufacture method of a black matrix. The COA technology is utilized to manufacture the organic photoresist blocks with a larger thickness on the alignment marks. Then, the black matrix thin film covers on the organic photoresist blocks to tremendously increase the level differences of the positions of the alignment marks and adjacent areas. Thus, the contour recognition apparatus is employed to accurately recognize positions of the alignment marks. The issue that the alignment marks are difficult to be recognized after the black matrix thin film is coated in the BOA process can be solved."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method for manufacturing black matrix with easy recognition of alignment mark","description":"The present invention provides a manufacture method of a black matrix. The COA technology is utilized to manufacture the organic photoresist blocks with a larger thickness on the alignment marks. Then","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9766521","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-9766521","citation_suggestion":"Patentable. \"Method for manufacturing black matrix with easy recognition of alignment mark\" (US-9766521). https://patentable.app/patents/US-9766521","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9766521","json":"https://patentable.app/api/llm-context/US-9766521","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T08:35:46.727Z"}