Pixel circuit of organic light emitting diode display device for compensating for a characteristic deviation of a driving thin film transistor

US8982017B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8982017-B2
Application numberUS-201213604243-A
CountryUS
Kind codeB2
Filing dateSep 5, 2012
Priority dateSep 5, 2011
Publication dateMar 17, 2015
Grant dateMar 17, 2015

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Abstract

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A pixel circuit of an OLED display device is disclosed. The pixel circuit includes a light emitting element, a driving TFT for driving the light emitting element, a delivery capacitor connected between a first node and a second node, a storage capacitor connected between the second node and a third node, a first reset TFT for initializing the first node to a reference voltage in response to a first reset signal from a first reset line, a second reset TFT for initializing the third node to an initialization voltage in response to the first reset signal from the first reset line, a third reset TFT for initializing the second node to the reference voltage in response to a second reset signal from a second reset line, and a switching TFT for supplying a data voltage to the first node in response to a scan signal from a scan line.

First claim

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What is claimed is: 1. A pixel circuit of an organic light emitting diode display device comprising: a light emitting element; a driving thin film transistor (TFT) for driving the light emitting element; a delivery capacitor connected between a first node and a second node, the second node being connected with the driving TFT; a storage capacitor connected between the second node and a third node, the third node being connected between the driving TFT and the light emitting…

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What does patent US8982017B2 cover?
A pixel circuit of an OLED display device is disclosed. The pixel circuit includes a light emitting element, a driving TFT for driving the light emitting element, a delivery capacitor connected between a first node and a second node, a storage capacitor connected between the second node and a third node, a first reset TFT for initializing the first node to a reference voltage in response to a f…
Who is the assignee on this patent?
Lee Young-Hak, Kim Geun-Young, Lg Display Co Ltd
What technology area does this patent fall under?
Primary CPC classification G09G3/3225. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Mar 17 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).