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. 22, 2022
Filed:
May. 29, 2020
Samsung Display Co., Ltd., Yongin-si, KR;
Younsun Kim, Yongin-si, KR;
Seulong Kim, Yongin-si, KR;
Dongwoo Shin, Yongin-si, KR;
Jungsub Lee, Yongin-si, KR;
Naoyuki Ito, Yongin-si, KR;
Jino Lim, Yongin-si, KR;
Samsung Display Co., Ltd., Yongin-si, KR;
Abstract
A light emitting device includes: a first electrode; a second electrode facing the first electrode; m emission units stacked between the first electrode and the second electrode; and m−1 charge generating layer(s) between the two adjacent emission units from among the m emission units, m−1 charge generating layer(s) including m−1 n-type charge generating layer(s) and m−1 p-type charge generating layer(s), wherein m is an integer of 2 or greater, a maximum emission wavelength of light emitted from at least one of the m emission units differs from that of light emitted from at least one of the other emission units, at least one of the m−1 n-type charge generating layer(s) includes a metal-containing material and an electron transporting metal-non-containing material.