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. 25, 2014
Filed:
Nov. 01, 2012
Lg Display Co., Ltd., Seoul, KR;
Yong-Chul Kim, Gyeonggi-do, KR;
Juhn-Suk Yoo, Gyeonggi-do, KR;
LG Display Co., Ltd., Seoul, KR;
Abstract
Provided is an organic light-emitting diode (OLED) display device having sub-pixels with four colors. When a Bsub-pixel that represents deep blue and a Bsub-pixel that represents sky blue are formed, by using a high efficiency blue organic material to form the same emission material layers in both the Band Bsub-pixels such that a microcavity effect is implemented only in the Bsub-pixel and a sky blue peak is extracted from the high efficiency blue organic material of the Bsub-pixel, the emission material layer of the Bsub-pixel represents sky blue. Therefore, a process of depositing emission material layers is simplified, which leads to a short process time and a reduction of the cost of materials, resulting in improvement in process efficiency of the OLED display device.