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.:
Date of Patent:
Jul. 11, 2017
Filed:
Dec. 24, 2014
Joled Inc., Tokyo, JP;
Mario Amatsuchi, Tokyo, JP;
JOLED INC., Tokyo, JP;
Abstract
A method for manufacturing a display panel including a display unit in which pixels, in rows and columns, include an organic EL element and a drive transistor, includes, performed on the display panel having a line defect which is a pixel column that emits light of luminance not reflecting display gray level signals: displaying, overlappingly, a lighted line, which is a pixel column inputted with uniform display gray level signals, and the line defect by displaying the lighted line on the display unit and scanning the display unit with the lighted line in the row direction; reducing a bright/dark part range in the line defect by uniformly changing the display gray level inputted to the pixel column in the lighted line overlapping with the line defect; and identifying a defective pixel, which is the line defect origin, from the position of the reduced bright/dark part range in the display unit.