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:
Mar. 14, 2017
Filed:
Oct. 25, 2012
Joled Inc., Tokyo, JP;
JOLED INC., Tokyo, JP;
Abstract
A display device includes a voltage drop amount calculating circuit that regulates a power source voltage, a power wire network in the organic EL display unit includes a row-wise resistance component Rah and a column-wise resistance component Rav, and the voltage drop amount calculating circuit divides the organic EL display unit into blocks each made up of pixels in Xv rows and Xh columns, and sets, for each of the blocks, a row-wise resistance component Rah' to a value obtained by multiplying the resistance component Rah by (Xh/Xv), and sets, for each of the blocks, a column-wise resistance component Rav′ to a value obtained by multiplying the resistance component Rav by (Xv/Xh), thereby estimating a distribution, for the respective blocks, of amounts of voltage drop which occurs in the power wire, and regulates, based on the distribution, a voltage to be supplied to the display unit.