Invention Grant
- Patent Title: Light emitting device and a drive control method for driving a light emitting device
- Patent Title (中): 发光装置和用于驱动发光装置的驱动控制方法
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Application No.: US12626752Application Date: 2009-11-27
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Publication No.: US08279211B2Publication Date: 2012-10-02
- Inventor: Jun Ogura , Manabu Takei , Shunji Kashiyama
- Applicant: Jun Ogura , Manabu Takei , Shunji Kashiyama
- Applicant Address: JP Tokyo
- Assignee: Casio Computer Co., Ltd.
- Current Assignee: Casio Computer Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Holtz, Holtz, Goodman & Chick, PC
- Priority: JP2008-305715 20081128
- Main IPC: G06F3/038
- IPC: G06F3/038

Abstract:
A light emitting device has a plurality of pixels, each of which includes a drive transistor, a light emitting element and signal lines, a property parameter acquisition circuit which acquires property parameter, a signal correction circuit that generates a corrected gradation signal by correcting the image data based on the property parameter, and a drive signal impressing circuit that impresses a drive signal, generated based on the corrected gradation signal, on the pixel to drive it. The property parameter is constituted of a threshold voltage, a current amplification factor and its irregularity of the drive transistor, and is acquired based on measured voltages of the signal lines after each of a plurality of predetermined settling times elapses from the time when the light emitting device cuts off a voltage subsequent to impressing the voltage on each pixel for a predetermined length of time.
Public/Granted literature
- US20100134469A1 LIGHT EMITTING DEVICE AND A DRIVE CONTROL METHOD FOR DRIVING A LIGHT EMITTING DEVICE Public/Granted day:2010-06-03
Information query
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