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:
Dec. 08, 2015
Filed:
Sep. 17, 2012
Joled Inc., Tokyo, JP;
Rie Odawara, Kyoto, JP;
Yasuo Segawa, Hyogo, JP;
JOLED INC., Tokyo, JP;
Abstract
A method of fabricating an organic EL display apparatus includes: obtaining a representative current (I)-voltage (V) characteristic of a display panel including pixels each having an organic EL device and a driving transistor; dividing the display panel into a plurality of divided regions, and calculating a light-emitting efficiency and a light-emission starting current value for each of the divided regions calculated by a luminance (L)-I characteristic of the divided region; measuring luminance of light emitted from each of the pixels and calculating an L-V characteristic of each of the pixels; calculating an I-V characteristic of each pixel by dividing each luminance value of the L-V characteristic calculated for the pixel by light-emitting efficiency, and by adding a light-emission starting current value; and calculating a correction parameter for each pixel such that the I-V characteristic of each pixel is corrected to the representative I-V characteristic.