公开(公告)号：US20130075768A1

公开(公告)日：2013-03-28

申请号：US13624166

申请日：2012-09-21

Applicant: LG Display Co., Ltd.

Inventor： Young-Mi Kim ,  Jong-Geun Yoon ,  Joon-Young Heo ,  Han-Sun Park ,  Eui-Doo Do ,  Yeon-Kyeong Lee

IPC: H01L51/50 ,  H01L51/56

CPC classification number: H01L51/5012 ,  H01L27/153 ,  H01L27/3211 ,  H01L27/3218 ,  H01L33/20 ,  H01L33/62 ,  H01L51/0002 ,  H01L51/0016 ,  H01L51/0018 ,  H01L51/5056 ,  H01L51/5072 ,  H01L51/5088 ,  H01L51/5092 ,  H01L51/5234 ,  H01L51/56

Abstract: In an organic light emitting diode (OLED) display device and a method for fabricating the same, OLED pixels are patterned through a photolithography process, so a large area patterning can be performed and a fine pitch can be obtained, and an organic compound layer can be protected by forming a buffer layer of a metal oxide on an upper portion of the organic compound layer or patterning the organic compound layer by using a cathode as a mask, improving device efficiency. In addition, among red, green, and blue pixels, two pixels are patterned through a lift-off process and the other remaining one is deposited to be formed without patterning, the process can be simplified and efficiency can be increased.