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:
Feb. 17, 2009
Filed:
Feb. 18, 2004
Michael Redecker, Berlin, DE;
Joerg Fischer, Berlin, DE;
Michael Redecker, Berlin, DE;
Joerg Fischer, Berlin, DE;
Samsung SDI Co., Ltd., Suwon, KR;
Abstract
A display having a hole barrier layer and/or a electron barrier layer, whereby the hole barrier layer and/or the electron barrier layer are disposed between an emitter layer and a first electrode layer or a second electrode layer of the display. The highest occupied molecule orbital of the hole barrier layer is energetically lower than highest occupied molecule orbital of the emitter layer and/or the lowest unoccupied molecule orbital of the electron barrier layer is energetically higher than the lowest unoccupied molecule orbital of the emitter layer. By arranging the energy levels of the molecule orbitals of the hole barrier layer and/or the electron barrier layer, barriers can be created to prevent the injection of unwanted charge carriers in the reverse direction during re-emissive operation of the display.