Invention Grant
- Patent Title: Display apparatus
- Patent Title (中): 显示装置
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Application No.: US14224124Application Date: 2014-03-25
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Publication No.: US09159262B2Publication Date: 2015-10-13
- Inventor: Ken Kikuchi , Takaaki Sugiyama , Takehiro Misonou , Genichiro Oga , Takahiro Kita
- Applicant: Sony Corporation
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: Wolf, Greenfield & Sacks, P.C.
- Priority: JP2013-075883 20130401
- Main IPC: G09G3/30
- IPC: G09G3/30 ; G09G3/36 ; G09G5/00 ; G06F3/038 ; G09G3/10 ; G09G3/32

Abstract:
A display apparatus includes pixels arranged in a two-dimensional matrix pattern, each of which including a light-emitting unit and a drive circuit that drives the unit and includes a comparator circuit that compares a control pulse with potential based on signal voltage and outputs predetermined voltage based on the result, a transistor driving the unit in response to the predetermined voltage, and a current source that supplies current to the unit during driving of the transistor, includes a current-source transistor, a capacity unit connected to a gate electrode of the current-source transistor, a differential amplifier that detects a differential between voltage based on reference constant current and reference voltage, and a transistor controlling the voltage based on reference constant current depending on current flowing through the current-source transistor, and controls gate potential of the current-source transistor on the basis of output of the amplifier in synchronization with a scanning signal.
Public/Granted literature
- US20140292745A1 DISPLAY APPARATUS Public/Granted day:2014-10-02
Information query
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