Invention Grant
- Patent Title: Pixel circuit driving method, light emitting device, and electronic apparatus including a variable driving signal
- Patent Title (中): 像素电路驱动方法,发光装置和包括可变驱动信号的电子设备
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Application No.: US12545479Application Date: 2009-08-21
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Publication No.: US08456391B2Publication Date: 2013-06-04
- Inventor: Satoshi Yatabe , Hideto Ishiguro
- Applicant: Satoshi Yatabe , Hideto Ishiguro
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oliff & Berridge, PLC
- Priority: JP2008-249809 20080929
- Main IPC: G09G3/32
- IPC: G09G3/32

Abstract:
Provided is a method of driving a pixel circuit including a light emitting element and a driving transistor which are connected in series, and a storage capacitor disposed between the path between the light emitting element and the driving transistor and the gate of the driving transistor, the method including the steps of: supplying a driving signal, of which the time rate of change of the potential varies over time, to a gate of the driving transistor; stopping the supply of the driving signal at a point in time which is set to be variable in accordance with a gradation specified for the pixel circuit; and supplying a driving current corresponding to an open circuit voltage of the storage capacitor to the light emitting element.
Public/Granted literature
- US20100079507A1 PIXEL CIRCUIT DRIVING METHOD, LIGHT EMITTING DEVICE, AND ELECTRONIC APPARATUS Public/Granted day:2010-04-01
Information query
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