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.

Patent No.:

US 8749457 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 10, 2014

Filed:

Feb. 23, 2012
Applicants:

Yasuo Segawa, Hyogo, JP;

Tetsurou Nakamura, Kyoto, JP;

Shinya Ono, Osaka, JP;

Inventors:

Yasuo Segawa, Hyogo, JP;

Tetsurou Nakamura, Kyoto, JP;

Shinya Ono, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 3/32 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method of manufacturing an organic electroluminescence display includes preparing a substrate including pixels. The pixels each include a drive transistor and a capacitor. The capacitor of a subject pixel is caused to hold a voltage which corresponds to a threshold voltage of the drive transistor, and the voltage is read. A first signal voltage is obtained by adding a first correction parameter of the subject pixel to a second signal voltage corresponding to a single gradation level belonging to an intermediate gradation region or a high gradation region of representative voltage-luminance characteristics. The first signal voltage is applied to the driver of the subject pixel, and a luminance emitted by the subject pixel is measured. A second correction parameter with which the luminance emitted by the subject pixel becomes a standard luminance is calculated.


Find Patent Forward Citations

Segawa, Yasuo. (2014). Organic electroluminescence display device manufacturing method and organic electroluminescence display device (U.S. Patent No. 8749457). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8749457

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