Invention Grant
- Patent Title: Current output drive circuit and display device
- Patent Title (中): 电流输出驱动电路和显示装置
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Application No.: US10525203Application Date: 2003-09-03
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Publication No.: US07652650B2Publication Date: 2010-01-26
- Inventor: Yuichi Takagi , Genichiro Oga , Hiroshi Tachimori
- Applicant: Yuichi Takagi , Genichiro Oga , Hiroshi Tachimori
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: Rader, Fishman & Grauer PLLC
- Priority: JP2002-268036 20020913
- International Application: PCT/JP03/11235 WO 20030903
- International Announcement: WO2004/025614 WO 20040325
- Main IPC: G09G3/36
- IPC: G09G3/36

Abstract:
A circuit having a plurality of driver IC's 101-1 to 101-n provided corresponding to divided areas of a display panel 102, each driver having an output circuit for outputting a supplied reference current IREF as a drive current to corresponding divided areas DRVA1 to DRVAn of the display panel 102 and reference current source circuits 200-1 to 200-n for sampling and holding the reference current input from the reference current input terminal, then supplying the same to the output circuit, the reference current input terminal being connected to the reference current input terminal of another driver by a common current interconnect CML1, and the reference current being distributed to the reference current source circuits of drivers by time division. According to the present invention, luminance steps among drivers driving the display (driven object) by division can be made sufficiently small, and a large size, high dynamic range display organic EL display, which cannot be realized by the conventional method of supply of the reference current, can be realized.
Public/Granted literature
- US20060017664A1 Current output type driver circuit and display device Public/Granted day:2006-01-26
Information query
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