Invention Grant
US08111217B2 Driving circuit for an OLED (organic light emission diode), in particular for a display of the AM-OLED type
有权
用于OLED(有机发光二极管)的驱动电路,特别是AM-OLED型显示器
- Patent Title: Driving circuit for an OLED (organic light emission diode), in particular for a display of the AM-OLED type
- Patent Title (中): 用于OLED(有机发光二极管)的驱动电路,特别是AM-OLED型显示器
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Application No.: US12019577Application Date: 2008-01-24
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Publication No.: US08111217B2Publication Date: 2012-02-07
- Inventor: Claudia Caligiore , Giuseppe Antonio Maria Nastasi , Lidia Maddiona , Salvatore Abbisso , Salvatore Leonardi
- Applicant: Claudia Caligiore , Giuseppe Antonio Maria Nastasi , Lidia Maddiona , Salvatore Abbisso , Salvatore Leonardi
- Applicant Address: IT Agrate Brianza
- Assignee: STMicroelectronics S.r.l.
- Current Assignee: STMicroelectronics S.r.l.
- Current Assignee Address: IT Agrate Brianza
- Agency: Seed IP Law Group PLLC
- Agent Lisa K. Jorgenson; E. Russell Tarleton
- Priority: ITMI2007A0100 20070124
- Main IPC: G09G3/30
- IPC: G09G3/30

Abstract:
A driving circuit of an OLED diode is inserted between a first and a second voltage reference and having at least one input terminal receiving an input voltage signal and an output terminal for the generation of a driving current of the OLED diode, the driving circuit having at least one driver transistor having a first conduction terminal connected to the first voltage reference, a second conduction terminal connected to the output terminal and a control terminal connected to at least one first capacitor and one second capacitor. The first capacitor is inserted between this control terminal and an inner circuit node and the second capacitor is inserted between the inner circuit node and the second voltage reference, the driving circuit 10 further including: a first switch inserted between the input terminal and the inner circuit node; a second switch inserted between the first conduction terminal and control terminal of the driver transistor, and a third switch inserted between the inner circuit node and the second voltage reference, in parallel to the second capacitor, as well as a fourth switch inserted between the first voltage reference and the first conduction terminal of the driver transistor.
Public/Granted literature
Information query
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