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. 05, 2025

Filed:

Dec. 29, 2021
Applicant:

Sharp Display Technology Corporation, Kameyama, JP;

Inventors:

Kohhei Tanaka, Kameyama, JP;

Seiichi Uchida, Kameyama, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 3/3233 (2016.01); G06F 3/041 (2006.01); G09G 3/3266 (2016.01); G09G 3/3275 (2016.01);
U.S. Cl.
CPC ...
G09G 3/3233 (2013.01); G06F 3/041662 (2019.05); G09G 3/3266 (2013.01); G09G 3/3275 (2013.01); G09G 2330/023 (2013.01); G09G 2360/14 (2013.01);
Abstract

A pixel circuit with sensing function that can perform sensing operation and display operation in a simultaneous and parallel manner is implemented using a small number of elements. For each pixel circuit () there are provided a sensor circuit () connected to a control node (NG) and including three or less circuit elements; and a read circuit () connected to a second conductive terminal of a drive transistor (T) and including one read transistor (T). A sensing process is performed during a period during which a drive current is supplied to an organic EL element () depending on a potential at the control node (NG). A sensing result reading process is performed by maintaining the read transistor (T) in on state during a predetermined period after ending the sensing process.


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