Invention Grant
- Patent Title: Display apparatus, driving apparatus for light-emitting devices, and image forming apparatus
- Patent Title (中): 显示装置,发光装置的驱动装置和图像形成装置
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Application No.: US13866565Application Date: 2013-04-19
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Publication No.: US09024849B2Publication Date: 2015-05-05
- Inventor: Fujio Kawano
- 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: JP2012-098112 20120423; JP2013-039270 20130228
- Main IPC: G09G3/30
- IPC: G09G3/30 ; G09G3/32

Abstract:
A driving apparatus for light-emitting devices includes transistors, data lines connected to gates of the transistors, feedback lines connected to a source or a drain of the transistors that supply a current to the light-emitting devices, a voltage amplifier that includes an input terminal connected to the feedback line and an output terminal connected to the data line, and a data generation circuit connected to the input terminal of the voltage amplifier through a capacitor. The voltage amplifier converts a change in voltage of the feedback line generated by a current flowing from the transistors to the capacitor into a change in voltage of the data line in a direction in which the transistors connected to the data line turn off.
Public/Granted literature
- US20130278587A1 DISPLAY APPARATUS, DRIVING APPARATUS FOR LIGHT-EMITTING DEVICES, AND IMAGE FORMING APPARATUS Public/Granted day:2013-10-24
Information query
IPC分类: