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:
Aug. 20, 2019

Filed:

Oct. 02, 2015
Applicant:

Sharp Kabushiki Kaisha, Sakai, Osaka, JP;

Inventors:

Hiroyuki Furukawa, Sakai, JP;

Noritaka Kishi, Sakai, JP;

Kazuyoshi Yoshiyama, Sakai, JP;

Tamotsu Sakai, Sakai, JP;

Naoko Goto, Sakai, JP;

Noboru Noguchi, Sakai, JP;

Assignee:

SHARP KABUSHIKI KAISHA, Sakai, Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/3233 (2016.01); G01R 19/00 (2006.01); G09G 3/3266 (2016.01); G09G 3/3275 (2016.01); G09G 3/3291 (2016.01);
U.S. Cl.
CPC ...
G09G 3/3233 (2013.01); G01R 19/003 (2013.01); G09G 3/3266 (2013.01); G09G 3/3275 (2013.01); G09G 3/3291 (2013.01); G09G 2300/0819 (2013.01); G09G 2300/0828 (2013.01); G09G 2300/0842 (2013.01); G09G 2310/0262 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0257 (2013.01); G09G 2320/0295 (2013.01); G09G 2330/021 (2013.01); G09G 2330/12 (2013.01); G09G 2350/00 (2013.01); G09G 2360/16 (2013.01); G09G 2370/08 (2013.01);
Abstract

The organic EL display device includes: a current monitoring section that measures a current flowing in a circuit element and outputs a digital measured value in accordance with the measured current; and an averaging section () that calculates an average value of a plurality of input values. The current monitoring section measures the current flowing in a circuit element in each pixel circuit a plurality of times in a fixed amount of time. For each pixel circuit, the averaging section () receives a plurality of measured values outputted from the current monitoring section in a fixed amount of time as a plurality of input values and outputs an average value of the plurality of digital measured values as a value for use in compensation computation to compensate for degradation of the circuit element.


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