Invention Grant
- Patent Title: Light emitting apparatus, driving circuit of light emitting element, and driving method
- Patent Title (中): 发光装置,发光元件的驱动电路及驱动方法
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Application No.: US14030710Application Date: 2013-09-18
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Publication No.: US09167635B2Publication Date: 2015-10-20
- Inventor: Takanori Yamashita , Masami Iseki , Tsuyoshi Yabukane
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Canon USA, Inc. IP Division
- Priority: JP2012-206884 20120920
- Main IPC: G09G3/30
- IPC: G09G3/30 ; H05B33/08 ; G03G15/04 ; B41J2/385 ; B41J2/45 ; G09G3/32

Abstract:
A light emitting apparatus includes a light emitting element, a driving circuit which has a driving transistor having a gate, a drain, and a source, and a capacitor having one end connected to the gate, a power line, and first and second voltage lines, and, in a period in which the gate and the drain are short-circuited and the drain and the light emitting element are blocked, the source is connected to the first voltage line and the other end of the capacitor is connected to the second voltage line to hold a voltage in the capacitor, and, in a period in which the gate and the drain are disconnected and the drain and the light emitting element are connected, the source is connected to the power line, and the other end of the capacitor is connected to the source to supply a current to the light emitting element.
Public/Granted literature
- US20140078233A1 LIGHT EMITTING APPARATUS, DRIVING CIRCUIT OF LIGHT EMITTING ELEMENT, AND DRIVING METHOD Public/Granted day:2014-03-20
Information query
IPC分类: