US Patent 7982222 EL display device and electronic device
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Edits on 28 Nov, 2023
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Patent abstract
An EL display device capable of producing a vivid multi-gradation color display, and an electronic device having the EL display device. An electric current supplied to an EL element is controlled by providing a resistor between a current control TFT and the EL element formed in a pixel, the resistor having a resistance higher than the on-resistance of the current control TFT. The gradation display is executed by a time-division drive system which controls the emission and non-emission of light of the EL element by time, preventing the effect caused by a dispersion in the characteristics of the current control TFT.
Edits on 20 May, 2023
Golden AI
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US Patent 07982222 EL display device and electronic device US Patent 7982222 EL display device and electronic device
Infobox
Patent Number
0798222200
Patent Number
798222200
Edits on 24 Apr, 2023
Golden AI
Infobox
Is a
Patent Jurisdiction
Patent Number
079822220
Date of Patent
July 19, 2011
0Patent Application Number
120811500
Date Filed
April 11, 2008
0Patent Primary Examiner
Edits on 27 Sep, 2022
Golden AI
Infobox
Is a
Patent Jurisdiction
Patent Number
079822220
Date of Patent
July 19, 2011
0Patent Application Number
120811500
Date Filed
April 11, 2008
0Patent Primary Examiner
Edits on 8 Dec, 2021
Golden AI
Edits made to:
Infobox (+7 properties)
US Patent 07982222 EL display device and electronic device
Infobox
Is a
Patent jurisdiction
Patent number
07982222
Date of patent
July 19, 2011
Patent application number
12081150
Date Filed
April 11, 2008
Patent primary examiner
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