Invention Grant
US08502751B2 Pixel driver circuit with load-balance in current mirror circuit
有权
像素驱动电路,在电流镜电路中具有负载平衡
- Patent Title: Pixel driver circuit with load-balance in current mirror circuit
- Patent Title (中): 像素驱动电路,在电流镜电路中具有负载平衡
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Application No.: US10554795Application Date: 2004-09-23
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Publication No.: US08502751B2Publication Date: 2013-08-06
- Inventor: Arokia Nathan , Kapil V. Sakariya , Peyman Servati , Shahin Jafarabadiashtiani
- Applicant: Arokia Nathan , Kapil V. Sakariya , Peyman Servati , Shahin Jafarabadiashtiani
- Applicant Address: CA Waterloo
- Assignee: Ignis Innovation Inc.
- Current Assignee: Ignis Innovation Inc.
- Current Assignee Address: CA Waterloo
- Agency: Nixon Peabody LLP
- Priority: CA2443206 20030923
- International Application: PCT/CA2004/001741 WO 20040923
- International Announcement: WO2005/029455 WO 20050331
- Main IPC: G09G3/30
- IPC: G09G3/30

Abstract:
A pixel circuit for use in a display comprising a plurality of pixels is provided. The load-balanced current mirror pixel circuit can compensate for device degradation and/or mismatch, and changing environmental factors like temperature and mechanical strain. The pixel circuit comprises a pixel drive circuit comprising, switching circuitry, a current mirror having a reference transistor and a drive transistor, the reference transistor and the drive transistor each having a first and second node and a gate, the gate of the reference transistor being connected to the gate of the drive transistor; and a capacitor connected between the gate of the reference transistor and a ground potential, and a load connected between the current mirror and a ground potential, the load having a first load element and a second load element, the first load element being connected to the first node of the reference transistor and the second load element being connected to the first node of the drive transistor.
Public/Granted literature
- US20070182671A1 Pixel driver circuit Public/Granted day:2007-08-09
Information query
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