公开(公告)号：US20180226599A1

公开(公告)日：2018-08-09

申请号：US15948615

申请日：2018-04-09

Applicant: LG Display Co., Ltd.

Inventor： Young-Mi KIM ,  Jong-Geun YOON ,  Joon-Young HEO ,  Han-Sun PARK ,  Eui-Doo DO ,  Yeon-Kyeong LEE ,  Dae-Hyun KIM ,  Jong-Sik SHIM

IPC: H01L51/50 ,  H01L51/56 ,  H01L51/52 ,  H01L51/00 ,  H01L27/32 ,  H01L33/20 ,  H01L33/62 ,  H01L27/15

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.

公开(公告)号：US20190198792A1

公开(公告)日：2019-06-27

申请号：US16287312

申请日：2019-02-27

Applicant: LG Display Co., Ltd.

Inventor： Young-Mi KIM ,  Jong-Geun YOON ,  Joon-Young HEO ,  Han-Sun PARK ,  Eui-Doo DO ,  Yeon-Kyeong LEE ,  Dae-Hyun KIM ,  Jong-Sik SHIM

IPC: H01L51/50 ,  H01L51/56 ,  H01L51/00 ,  H01L27/32 ,  H01L51/52

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, to the process can be simplified and efficiency can be increased.