The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 13, 2018

Filed:

Jun. 13, 2017
Applicant:

Lg Display Co., Ltd., Seoul, KR;

Inventors:

Sungwook Chang, Goyang-si, KR;

Juhnsuk Yoo, Seoul, KR;

Jungchul Kim, Paju-si, KR;

Sungwook Yoon, Goyang-si, KR;

Hoyoung Ko, Paju-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/3258 (2016.01); G09G 3/3233 (2016.01); H01L 27/32 (2006.01);
U.S. Cl.
CPC ...
G09G 3/3258 (2013.01); G09G 3/3233 (2013.01); H01L 27/3262 (2013.01); H01L 27/3265 (2013.01); G09G 2300/0814 (2013.01); G09G 2300/0819 (2013.01); G09G 2300/0852 (2013.01); G09G 2300/0866 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0238 (2013.01); G09G 2320/0252 (2013.01); G09G 2320/045 (2013.01);
Abstract

An electroluminescent display is disclosed. An electroluminescent display comprises a display panel including a plurality of pixels, each of the plurality of pixels including subpixels. A pixel circuit of each subpixels includes a driving transistor configured to drive the electroluminescent diode, a first switching transistor configured to supply a first voltage to a gate of the driving transistor in response to a first scan signal, a second switching transistor configured to supply a second voltage to the gate of the driving transistor in response to a second scan signal, a third switching transistor configured to supply the second voltage to a first electrode of the driving transistor in response to the second scan signal, a fourth switching transistor configured to supply a first supply voltage to a second electrode of the driving transistor in response to an emission control signal, a first capacitor between a first node connected to the gate electrode of the driving transistor and a second node connected to the second electrode of the driving transistor, and a second capacitor between the second node and a power supply line supplied with the second voltage or the first supply voltage.


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