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:
Jul. 23, 2019

Filed:

Sep. 22, 2015
Applicant:

Nlt Technologies, Ltd., Kanagawa, JP;

Inventors:

Yojiro Matsueda, Kanagawa, JP;

Yoshihiro Nonaka, Kanagawa, JP;

Kenichi Takatori, Kanagawa, JP;

Assignee:

NLT TECHNOLOGIES, LTD., Kanagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/20 (2006.01); G09G 3/3233 (2016.01); G09G 3/3291 (2016.01);
U.S. Cl.
CPC ...
G09G 3/2096 (2013.01); G09G 3/3233 (2013.01); G09G 3/3291 (2013.01); G09G 2300/0434 (2013.01); G09G 2300/0819 (2013.01); G09G 2300/0852 (2013.01); G09G 2300/0861 (2013.01); G09G 2310/0297 (2013.01);
Abstract

To achieve a pixel circuit and the like capable of improving the accuracy for detecting the threshold voltage. The pixel circuit includes: a light emitting element; a driving transistor which supplies an electric current to the light emitting element according to an applied voltage; a capacitor part which holds a voltage containing a threshold voltage and a data voltage of the driving transistor and applies the voltage to the driving transistor; and a switch part which makes the capacitor part hold the voltage containing the threshold voltage and the data voltage. The switch part includes a reference voltage transistor which inputs a reference voltage from a reference voltage power supply line and a data voltage transistor which inputs a data voltage from a data line.


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