{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9589989","patent":{"patent_number":"US-9589989","title":"Liquid crystal display device having a contact hole having an undercut shape","assignee":null,"inventors":[],"filing_date":"2014-11-12T00:00:00.000Z","publication_date":"2017-03-07T00:00:00.000Z","cpc_codes":["G02F","G02F","G02F","G02F","G02F","G02F","G02F"],"num_claims":11,"abstract":"An array substrate for a liquid crystal display (LCD) device include: a substrate; a gate line formed in one direction on one surface of the substrate; a data line crossing the gate line to define a pixel area; a thin film transistor (TFT) configured at a crossing of the gate line and the data line; a pixel electrode formed at a pixel region of the substrate; an insulating film formed on the entire surface of the substrate including the pixel electrode and the TFT, including a first insulating film formed of a high temperature silicon nitride film and a second insulating film formed of a low temperature silicon nitride film, and having a contact hole having an undercut shape exposing the pixel electrode; a pixel electrode connection pattern formed within the contact hole having an undercut shape and connected with the pixel electrode and the TFT; and a plurality of common electrodes separately formed on the insulating film."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Liquid crystal display device having a contact hole having an undercut shape","description":"An array substrate for a liquid crystal display (LCD) device include: a substrate; a gate line formed in one direction on one surface of the substrate; a data line crossing the gate line to define a p","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9589989","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-9589989","citation_suggestion":"Patentable. \"Liquid crystal display device having a contact hole having an undercut shape\" (US-9589989). https://patentable.app/patents/US-9589989","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9589989","json":"https://patentable.app/api/llm-context/US-9589989","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:02:39.421Z"}