Invention Grant
- Patent Title: Operational amplifier circuit and display apparatus using the same
- Patent Title (中): 运算放大器电路及使用其的显示装置
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Application No.: US12320935Application Date: 2009-02-09
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Publication No.: US08310422B2Publication Date: 2012-11-13
- Inventor: Kouichi Nishimura
- Applicant: Kouichi Nishimura
- Applicant Address: JP Kawasaki-Shi, Kanagawa
- Assignee: Renesas Electronics Corporation
- Current Assignee: Renesas Electronics Corporation
- Current Assignee Address: JP Kawasaki-Shi, Kanagawa
- Agency: McGinn IP Law Group, PLLC
- Priority: JP2008-031149 20080212
- Main IPC: G09G3/36
- IPC: G09G3/36
Abstract:
An operational amplifier circuit includes: an input differential stage circuit supplied with power supply voltages in a first voltage range; and an output stage circuit supplied with power supply voltages in a second voltage range which is different from the first voltage range. The operational amplifier circuit amplifies a signal supplied to the input differential stage circuit and outputs the amplified signal from the output stage circuit to drive a load.
Public/Granted literature
- US20090201237A1 Operational amplifier circuit and display apparatus using the same Public/Granted day:2009-08-13
Information query
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