{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8525821","patent":{"patent_number":"US-8525821","title":"Display driving device, semiconductor device and liquid crystal display apparatus","assignee":null,"inventors":[],"filing_date":"2009-07-29T00:00:00.000Z","publication_date":"2013-09-03T00:00:00.000Z","cpc_codes":["G09G","G09G"],"num_claims":18,"abstract":"A display driving device includes an output circuit that drives display elements. The output circuit includes a bias circuit, an amplifier stage and an output stage. The bias circuit generates bias signals that include constant-current-control signals of a first bias signal and a second bias signal of the same polarity. The first and second bias signals are short circuited by a vertical line in the bias circuit and the vertical line is shielded. The amplifier stage is formed in a first well and constant-current-controlled by the first bias signal to amplify an input display signal. The output stage is formed in a second well. The first and second wells are formed separately in a semiconductor substrate. The output stage is constant-current-controlled by the second bias signal and supplies an output signal of the amplifier stage to the display element."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Display driving device, semiconductor device and liquid crystal display apparatus","description":"A display driving device includes an output circuit that drives display elements. The output circuit includes a bias circuit, an amplifier stage and an output stage. The bias circuit generates bias si","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8525821","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-8525821","citation_suggestion":"Patentable. \"Display driving device, semiconductor device and liquid crystal display apparatus\" (US-8525821). https://patentable.app/patents/US-8525821","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8525821","json":"https://patentable.app/api/llm-context/US-8525821","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T20:58:06.080Z"}