公开(公告)号：US10026915B2

公开(公告)日：2018-07-17

申请号：US14949184

申请日：2015-11-23

Applicant: LG Display Co., Ltd.

Inventor： Tae Sun Yoo ,  Hwa Kyung Kim ,  Hong Seok Choi ,  Jae Il Song ,  Mi Young Han ,  Shin Han Kim ,  Hye Min Oh

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

Abstract: A white organic light emitting device can include first and second electrodes on a substrate; a first stack configured with a hole injection layer, a first hole transportation layer, a first light emission layer and a first electron transportation layer which are stacked on the first electrode; a second stack configured with a second hole transportation layer, a second light emission layer, a third light emission layer, and a second electron transportation layer which are stacked on the first stack; a third stack interposed between the second stack and the second electrode and configured with a third hole transportation layer, a fourth light emission layer, a third electron transportation layer and an electron injection layer which are stacked on the second stack; and charge generation layers interposed between the first and second stacks and between the second and third stacks and configured to adjust a charge balance between the stacks.

公开(公告)号：US10741781B2

公开(公告)日：2020-08-11

申请号：US16534816

申请日：2019-08-07

Applicant: LG DISPLAY CO., LTD.

Inventor： Tae Sun Yoo ,  Hwa Kyung Kim ,  Hong Seok Choi ,  Jae Il Song ,  Mi Young Han ,  Shin Han Kim ,  Hye Min Oh

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

Abstract: An organic light emitting device can include first and second electrodes formed to face each other on a substrate; a first stack interposed between the first and second electrode and configured with a hole injection layer, a first hole transportation layer, a first light emission layer and a first electron transportation layer which are stacked on the first electrode; a second stack interposed between the first stack and the second electrode and configured with a second hole transportation layer, a second light emission layer, a third light emission layer and a second electron transportation layer which are stacked on the first stack; a third stack interposed between the second stack and the second electrode and configured with a third hole transportation layer, a fourth light emission layer, a third electron transportation layer and an electron injection layer which are stacked on the second stack; and a first charge generation layer interposed between the first and second stacks and a second charge generation layer interposed between the second and third stacks.

公开(公告)号：US10418577B2

公开(公告)日：2019-09-17

申请号：US16012267

申请日：2018-06-19

Applicant: LG DISPLAY CO., LTD.

Inventor： Tae Sun Yoo ,  Hwa Kyung Kim ,  Hong Seok Choi ,  Jae Il Song ,  Mi Young Han ,  Shin Han Kim ,  Hye Min Oh

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

Abstract: An organic light emitting device can include first and second electrodes formed to face each other on a substrate; a first stack interposed between the first and second electrode and configured with a hole injection layer, a first hole transportation layer, a first light emission layer and a first electron transportation layer which are stacked on the first electrode; a second stack interposed between the first stack and the second electrode and configured with a second hole transportation layer, a second light emission layer, a third light emission layer and a second electron transportation layer which are stacked on the first stack; a third stack interposed between the second stack and the second electrode and configured with a third hole transportation layer, a fourth light emission layer, a third electron transportation layer and an electron injection layer which are stacked on the second stack; and a first charge generation layer interposed between the first and second stacks and a second charge generation layer interposed between the second and third stacks.

公开(公告)号：US20130175512A1

公开(公告)日：2013-07-11

申请号：US13724308

申请日：2012-12-21

Applicant: LG DISPLAY CO., LTD.

Inventor： Hwa Kyung Kim ,  Chang Wook Han ,  Do Hyung Kim ,  Hongseok Choi ,  Yoon Heung Tak ,  Ki-Woog Song ,  Mi-Young Han ,  Jimin Kim ,  Hye Min Oh

IPC: H01L51/52

CPC classification number: H01L51/5203 ,  H01L27/3209 ,  H01L27/3244 ,  H01L51/5004

Abstract: Disclosed is an organic light emitting display device. The organic light emitting display device includes a substrate, a thin film transistor formed on the substrate, a first electrode formed on the thin film transistor, an organic emission layer, and a second electrode formed on the organic emission layer. The organic emission layer includes a first stack that includes a first emission layer formed on the first electrode to emit first color light, a second stack that includes a second emission layer formed on the first electrode to emit second color light, and a charge generation layer formed between the first and second stacks.

Abstract translation: 公开了一种有机发光显示装置。 有机发光显示装置包括基板，形成在基板上的薄膜晶体管，形成在薄膜晶体管上的第一电极，有机发光层和形成在有机发光层上的第二电极。 有机发光层包括：第一叠层，其包括形成在第一电极上以发射第一色光的第一发射层;第二堆叠，包括形成在第一电极上以发射第二色光的第二发射层;以及电荷产生层 形成在第一和第二堆叠之间。

公开(公告)号：US09224967B2

公开(公告)日：2015-12-29

申请号：US14109634

申请日：2013-12-17

Applicant: LG DISPLAY CO., LTD.

Inventor： Tae Sun Yoo ,  Hwa Kyung Kim ,  Hong Seok Choi ,  Jae Il Song ,  Mi Young Han ,  Shin Han Kim ,  Hye Min Oh

IPC: H01L51/50

CPC classification number: H01L51/5028 ,  H01L27/3209 ,  H01L51/5016 ,  H01L51/504 ,  H01L51/5044 ,  H01L51/5056 ,  H01L51/5072 ,  H01L51/5088 ,  H01L51/5092 ,  H01L51/5206 ,  H01L51/5221 ,  H01L2251/5361 ,  H01L2251/5376 ,  H01L2251/5384 ,  H01L2251/558

Abstract: A white organic light emitting device includes: first and second electrodes formed to face each other on a substrate; a first stack configured with a hole injection layer, a first hole transportation layer, a first light emission layer and a first electron transportation layer which are stacked between the first and second electrodes; a second stack configured with a second hole transportation layer, a second light emission layer, a third light emission layer, a second electron transportation layer and an electron injection layer which are stacked between the first stack and the second electrode; and a charge generation layer interposed between the first and second stacks and configured to adjust a charge balance between the two stacks.

Abstract translation: 白色有机发光器件包括：在基板上彼此面对形成的第一和第二电极; 配置有层叠在第一和第二电极之间的空穴注入层，第一空穴传输层，第一发光层和第一电子传输层的第一堆叠; 配置有第二空穴传输层，第二发光层，第三发光层，第二电子传输层和电子注入层的第二堆叠，堆叠在第一堆叠和第二电极之间; 以及插入在所述第一和第二堆叠之间并且被配置为调整所述两个堆叠之间的电荷平衡的电荷产生层。

公开(公告)号：US08847216B2

公开(公告)日：2014-09-30

申请号：US13724308

申请日：2012-12-21

Applicant: LG Display Co., Ltd.

Inventor： Hwa Kyung Kim ,  Chang Wook Han ,  Do Hyung Kim ,  Hongseok Choi ,  Yoon Heung Tak ,  Ki-Woog Song ,  Mi-Young Han ,  Jimin Kim ,  Hye Min Oh

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

CPC classification number: H01L51/5203 ,  H01L27/3209 ,  H01L27/3244 ,  H01L51/5004

Abstract: Disclosed is an organic light emitting display device. The organic light emitting display device includes a substrate, a thin film transistor formed on the substrate, a first electrode formed on the thin film transistor, an organic emission layer, and a second electrode formed on the organic emission layer. The organic emission layer includes a first stack that includes a first emission layer formed on the first electrode to emit first color light, a second stack that includes a second emission layer formed on the first electrode to emit second color light, and a charge generation layer formed between the first and second stacks.

Abstract translation: 公开了一种有机发光显示装置。 有机发光显示装置包括基板，形成在基板上的薄膜晶体管，形成在薄膜晶体管上的第一电极，有机发光层和形成在有机发光层上的第二电极。 有机发光层包括：第一叠层，其包括形成在第一电极上以发射第一色光的第一发射层;第二堆叠，包括形成在第一电极上以发射第二色光的第二发射层;以及电荷产生层 形成在第一和第二堆叠之间。