Invention Grant
- Patent Title: EL display device and electronic apparatus to compensate back-gate effect on light-emitting unit drive transistor
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Application No.: US14704219Application Date: 2015-05-05
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Publication No.: US09640111B2Publication Date: 2017-05-02
- Inventor: Junichi Yamashita , Yusuke Onoyama , Tetsuo Minami , Naobumi Toyomura , Tetsuro Yamamoto , Katsuhide Uchino
- Applicant: Sony Corporation
- Applicant Address: JP Tokyo
- Assignee: SONY CORPORATION
- Current Assignee: SONY CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Chip Law Group
- Priority: JP2011-181797 20110823
- Main IPC: G09G3/3233
- IPC: G09G3/3233 ; H01L27/32 ; G09G3/3225 ; G09G3/30

Abstract:
A display device includes: a plurality of light-emitting elements, each light-emitting element having a light-emitting unit and a driving circuit for driving the light-emitting unit. The driving circuit at least includes (A) a drive transistor having source/drain regions, a channel forming region, and a gate electrode, (B) a video signal write transistor having source/drain regions, a channel forming region, and a gate electrode, and (C) a capacitive unit. In the drive transistor, (A-1) one of the source/drain regions is connected to the corresponding current supply line, (A-2) the other region of the source/drain regions is connected to the light-emitting unit and connected to one end of the capacitive unit, and forms a second node, and (A-3) the gate electrode is connected to the other region of the source/drain regions of the video signal write transistor and connected to the other end of the capacitive unit, and forms a first node.
Public/Granted literature
Information query
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