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.

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：US20180122878A1

公开(公告)日：2018-05-03

申请号：US15799843

申请日：2017-10-31

Applicant: LG Display Co., Ltd.

Inventor： Young-Mi KIM ,  Woo-Sup SHIN ,  Sie-Hyug CHOI

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

CPC classification number: H01L27/3248 ,  H01L27/3209 ,  H01L27/3218 ,  H01L27/3262 ,  H01L51/5225 ,  H01L51/5234 ,  H01L51/5256 ,  H01L51/5262 ,  H01L51/56 ,  H01L2251/5392 ,  H01L2251/558 ,  H01L2251/568

Abstract: Provided is an organic light-emitting display device which enables a fast and secure repair process without changing optical characteristics. The organic light-emitting display device includes a lower electrode, an organic emitting layer, an upper electrode and an optical compensation layer which are sequentially stacked. The upper electrode is thinner than the lower electrode. An opening is formed by particles in the organic emitting layer and the upper electrode. The opening caused by the particles is extended between the lower electrode and the organic emitting layer.