{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9786223","patent":{"patent_number":"US-9786223","title":"Pixel circuits for AMOLED displays","assignee":null,"inventors":[],"filing_date":"2012-12-11T00:00:00.000Z","publication_date":"2017-10-10T00:00:00.000Z","cpc_codes":["G09G","G09G","G09G","G09G","G09G","G09G","G09G","G09G","G09G","G09G"],"num_claims":10,"abstract":"A system is provided for controlling an array of pixels in a display in which each pixel includes a light-emitting device and a reference voltage source that controllably supplies a reference voltage having a magnitude that turns off the light-emitting device. While the reference voltage is coupled to a drive transistor, a control voltage is supplied to the gate of the drive transistor to cause the drive transistor to transfer to a node common to the drive transistor and the light-emitting device, a voltage that is a function of the threshold voltage and mobility of the drive transistor. During an emission cycle, the current conveyed through the light emitting device via the drive transistor is controlled by a voltage stored in the storage capacitor, which is a function of the threshold voltage and mobility of the drive transistor so that the current supplied to the light-emitting device remains stable."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Pixel circuits for AMOLED displays","description":"A system is provided for controlling an array of pixels in a display in which each pixel includes a light-emitting device and a reference voltage source that controllably supplies a reference voltage ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9786223","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-9786223","citation_suggestion":"Patentable. \"Pixel circuits for AMOLED displays\" (US-9786223). https://patentable.app/patents/US-9786223","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9786223","json":"https://patentable.app/api/llm-context/US-9786223","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T15:38:09.626Z"}