US Patent No: 8,242,699

Number of patents in Portfolio can not be more than 2000

Light emitting device and production system of the same

ALSO PUBLISHED AS: 20120120126

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Importance

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Abstract

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To provide a light emitting device without nonuniformity of luminance, a correcting circuit for correcting a video signal supplied to each pixel to a light emitting device. The correcting circuit is stored with data of a dispersion of a characteristic of a driving TFT among pixels and data of a change over time of luminance of a light emitting element. Further, by correcting a video signal inputted to the light emitting device in conformity with a characteristic of the driving TFT of each pixel and a degree of a deterioration of the light emitting element based on the over-described two data, nonuniformity of luminance caused by a deterioration of an electroluminescent layer and nonuniformity of luminance caused by dispersion of a characteristic of the driving TFT are restrained.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
SEMICONDUCTOR ENERGY LABORATORY CO., LTD.KANAGAWA-KEN8472

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Akiba, Mai Kanagawa, JP 162 1542
Anzai, Aya Kanagawa, JP 257 1064
Kimura, Hajime Kanagawa, JP 1049 7589
Yamazaki, Shunpei Setagaya, JP 7629 93657
Yamazaki, Yu Tokyo, JP 192 956

Cited Art Landscape

Patent Info (Count) # Cites Year
 
GLOBAL OLED TECHNOLOGY LLC (1)
6,501,230 Display with aging correction circuit 56 2001
 
SHARP KABUSHIKI KAISHA (1)
6,489,938 Matrix display apparatus and plasma addressed display apparatus 19 2000
 
SEIKO EPSON CORPORATION (2)
6,518,962 Pixel circuit display apparatus and electronic apparatus equipped with current driving type light-emitting device 181 1998
7,362,322 Pixel circuit, display apparatus and electronic apparatus equipped with current driving type light-emitting device 24 2002
 
RAMNARAYAN, KAL (1)
6,498,592 Display tile structure using organic light emitting materials 117 2000
 
SONY CORPORATION (2)
6,317,138 Video display device 15 1999
6,476,779 Video display device 22 1999
 
SEIKO INSTRUMENTS INC. (1)
6,404,139 Circuit for driving a light emitting elements display device 12 2000
 
GOLD CHARM LIMITED (1)
6,246,180 Organic el display device having an improved image quality 162 2000
 
TRANSPACIFIC EXCHANGE, LLC (1)
6,188,454 Compensation for edge effects and cell gap variation in tiled flat-panel, liquid crystal displays 23 2000
 
TRANSPACIFIC INFINITY, LLC (2)
6,229,508 Active matrix light emitting diode pixel structure and concomitant method 225 1998
6,618,030 Active matrix light emitting diode pixel structure and concomitant method 68 2001
 
MOTOROLA SOLUTIONS, INC. (1)
6,060,840 Method and control circuit for controlling an emission current in a field emission display 22 1999
 
SANYO ELECTRIC CO., LTD. (1)
6,204,610 Electroluminescence display device 69 2000
 
STMICROELECTRONICS S.R.L. (1)
6,507,227 Device and method for monitoring current delivered to a load 14 2001
 
CAMBRIDGE DISPLAY TECHNOLOGY LIMITED (2)
5,247,190 Electroluminescent devices 1136 1990
5,399,502 Method of manufacturing of electrolumineschent devices 546 1993
 
SEMICONDUCTOR ENERGY LABORATORY CO., LTD. (26)
5,793,344 System for correcting display device and method for correcting the same 70 1995
6,489,952 Active matrix type semiconductor display device 63 1999
6,512,469 Serial-to-parallel conversion circuit, and semiconductor display device employing the same 14 2000
6,753,854 Display device 32 2000
6,590,581 Display device 20 2000
6,501,227 El display device and electronic device 80 2000
2001/0020,922 Display system and electrical appliance 67 2001
7,053,874 Light emitting device and driving method thereof 38 2001
6,774,578 Self light emitting device and method of driving thereof 58 2001
7,042,427 Light emitting device 18 2002
6,710,548 Light emitting device and electronic equipment using the same 47 2002
7,088,052 Light emitting device and method of driving the same 25 2002
7,158,157 Light emitting device and electronic apparatus using the same 15 2002
6,635,505 Method of manufacturing an active matrix type semiconductor display device 34 2002
6,700,330 EL display device and electronic device 42 2002
6,750,792 Serial-to-parallel conversion circuit, and semiconductor display device employing the same 17 2002
6,911,781 Light emitting device and production system of the same 37 2003
7,198,967 Active matrix type semiconductor display device 11 2003
7,049,983 Serial-to-parallel conversion circuit, and semiconductor display device employing the same 16 2004
7,456,579 Light emitting device and production system of the same 13 2004
7,586,505 Light emitting device and electronic apparatus using the same 5 2005
* 7,683,913 Display device and driving method thereof 3 2006
* 7,986,287 Display device and method of driving the same 2 2006
2007/0166,860 Active matrix type semicondcutor display device 9 2007
* 7,863,824 Light emitting device and production system of the same 5 2008
* 8,102,126 Light emitting device and production system of the same 4 2010
 
KABUSHIKI KAISHA TOSHIBA (2)
6,275,061 Testing method for a substrate of active matrix display panel 37 1999
6,630,840 Array substrate inspection method with varying non-selection signal 26 2001
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (3)
6,570,611 Image display 27 2000
7,227,519 Method of driving display panel, luminance correction device for display panel, and driving device for display panel 38 2000
6,628,248 Image display apparatus and method for compensating display image of image display apparatus 37 2001
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
SEMICONDUCTOR ENERGY LABORATORY CO., LTD. (1)
* 8,569,958 Light emitting device and production system of the same 0 2012
* Cited By Examiner

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