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:
Jun. 05, 2012
Filed:
Jan. 27, 2009
Choon-woo Lim, Suwon-si, KR;
Kwan-hee Lee, Suwon-si, KR;
Sung-jun Bae, Suwon-si, KR;
Sang-shin Lee, Suwon-si, KR;
Ji-hwan Yoon, Suwon-si, KR;
Eun-jung Lee, Suwon-si, KR;
Choon-Woo Lim, Suwon-si, KR;
Kwan-Hee Lee, Suwon-si, KR;
Sung-Jun Bae, Suwon-si, KR;
Sang-Shin Lee, Suwon-si, KR;
Ji-Hwan Yoon, Suwon-si, KR;
Eun-Jung Lee, Suwon-si, KR;
Samsung Mobile Display Co., Ltd., Giheung-Gu, Yongin, Gyunggi-Do, KR;
Abstract
An organic light emitting display device that can reach the optimum light emitting efficiency of each pixel while operating at a low voltage. The organic light emitting display device includes a first pixel region emitting a first color, a second pixel region emitting a second color different from the first color, a first layer formed over the first and second pixel regions, and having at least one of a hole injection layer and a hole transport layer, and a second layer formed over the first and second pixel regions, and having hole injectivity higher than the first layer, wherein the first and second layers are sequentially deposited in the first pixel region, and the second and first layers are sequentially deposited in the second pixel region.