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:
May. 03, 2011
Filed:
Jul. 13, 2007
Chung Che Tsou, Taoyuan County, TW;
Shin Ju Lin, Taichung, TW;
Chung Che Tsou, Taoyuan County, TW;
Shin Ju Lin, Taichung, TW;
Ritdisplay Corporation, Hsinchu, TW;
Abstract
An organic light emitting device (OLED) with brightness uniformity design comprises a substrate, an anode layer, a light emitting layer, a cathode layer, a plurality of anode leads and a plurality of cathode leads. The anode layer has a plurality of separate regions formed on the substrate respectively; the light emitting layer has a plurality of separate regions formed on the plurality of anode layer regions respectively; the cathode layer has a plurality of separate regions formed on the plurality of light emitting layer regions respectively. The anode leads with different cross-sectional areas are respectively connected to the regions of the anode layer, and the cathode leads with different cross-sectional areas are respectively connected to the regions of the cathode layer; the anode leads are connected to a positive input terminal of a power supply, and the cathode leads are connected to a negative input terminal of the power supply. The ratios of the lengths to the cross-sectional areas of the anode leads and cathode leads are the same, such that the currents flowing through the regions of the light emitting layer are the same.