{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9674905","patent":{"patent_number":"US-9674905","title":"Light source driving apparatus for controlling the operating mode of a backlight in response to changes in the dropout voltage of the current control transistor","assignee":null,"inventors":[],"filing_date":"2014-07-08T00:00:00.000Z","publication_date":"2017-06-06T00:00:00.000Z","cpc_codes":["G09G","G09G"],"num_claims":27,"abstract":"A display apparatus including: a display; a driver including an amplifier configured to detect a current of the display and to generate a constant current control signal, and a transistor configured to adjust the current supplied to the display in accordance an output voltage of the amplifier; and a controller configured to monitor the current of the display and a dropout voltage of the transistor, and control the amplifier so that a pulse width modulation (PWM) duty ratio is decreased in response to the dropout voltage being equal to or higher than a reference voltage."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Light source driving apparatus for controlling the operating mode of a backlight in response to changes in the dropout voltage of the current control transistor","description":"A display apparatus including: a display; a driver including an amplifier configured to detect a current of the display and to generate a constant current control signal, and a transistor configured t","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9674905","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-9674905","citation_suggestion":"Patentable. \"Light source driving apparatus for controlling the operating mode of a backlight in response to changes in the dropout voltage of the current control transistor\" (US-9674905). https://patentable.app/patents/US-9674905","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9674905","json":"https://patentable.app/api/llm-context/US-9674905","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T11:23:50.341Z"}