公开(公告)号：US20240206330A1

公开(公告)日：2024-06-20

申请号：US18233202

申请日：2023-08-11

Applicant: LG Display Co., Ltd.

Inventor： Do-Kyun Kwon ,  Min-Hyeong Hwang ,  Eun-Jung Park ,  Yu-Jeong Lee ,  Hyun-Jin Cho ,  Jun-Su Ha

IPC: H10K85/60 ,  C09K11/06 ,  H10K85/30

CPC classification number: H10K85/6572 ,  C09K11/06 ,  H10K85/342 ,  H10K85/631 ,  H10K50/11

Abstract: The present disclosure relates to an organic light emitting diode (OLED) where adjacent emitting material layers includes hosts with different LUMO energy level and/or electron mobility. A first emitting material layer including a first host with relatively slow electron mobility and/or relatively high LUMO energy level is disposed adjacently to a hole transport layer and a second emitting material layer including a second host with relatively fast electron mobility and/or relatively low LUMO energy level is disposed adjacent to an electron transport layer. No exciplex between hole transporting material and the first host is not formed while exciplex between the hole transporting material and the second host is formed so that exciton loss can be minimized. An OLED and an organic light emitting device with low driving voltage and low power consumption and beneficial luminous property and luminous lifetime can be realized.

公开(公告)号：US11974446B2

公开(公告)日：2024-04-30

申请号：US17102049

申请日：2020-11-23

Applicant: LG Display Co., Ltd.

Inventor： Wook Song ,  Eun-Jung Park ,  Chun-Ki Kim ,  Se-Ung Kim

IPC: H10K50/13 ,  H10K50/11 ,  H10K50/15 ,  H10K50/19 ,  H10K59/12 ,  H10K59/38 ,  H10K85/30 ,  H10K85/60 ,  H10K101/00 ,  H10K101/10 ,  H10K101/30 ,  H10K101/40

CPC classification number: H10K50/131 ,  H10K50/11 ,  H10K50/15 ,  H10K50/19 ,  H10K59/38 ,  H10K59/12 ,  H10K85/342 ,  H10K85/654 ,  H10K2101/10 ,  H10K2101/27 ,  H10K2101/30 ,  H10K2101/40 ,  H10K2101/90

Abstract: Disclosed are a white organic light emitting element, which may uniformize the color coordinates of white regardless of a change in current density by changing the configuration of different kinds of light emitting layers contacting each other, and a display device using the same.

公开(公告)号：US11882746B2

公开(公告)日：2024-01-23

申请号：US17161580

申请日：2021-01-28

Applicant: LG Display Co., Ltd.

Inventor： Eun-Jung Park ,  Kwan-Soo Kim ,  Ki-Min Lim

IPC: H10K59/35 ,  H10K50/13 ,  H10K50/818 ,  H10K59/38 ,  H10K59/121 ,  H01L27/12 ,  H10K59/131 ,  H10K102/00

CPC classification number: H10K59/352 ,  H10K50/131 ,  H10K50/818 ,  H10K59/1213 ,  H10K59/35 ,  H10K59/353 ,  H10K59/38 ,  H01L27/1214 ,  H10K59/131 ,  H10K2102/3026

Abstract: Disclosed are a panel capable of performing transparent display, a display device and a vehicle-mounted display device. A transmission part includes an organic light-emitting diode so as to perform light emission as well as display, thereby increasing an emission area, reducing the driving voltage required for emission driving, and consequently increasing the lifespan of the display device.

公开(公告)号：US10373559B2

公开(公告)日：2019-08-06

申请号：US15838887

申请日：2017-12-12

Applicant: LG DISPLAY CO., LTD.

Inventor： Seok-Hyun Kim ,  Eun-Jung Park ,  Ho-Sung Kim

IPC: H01L29/08 ,  G09G3/3233 ,  G09G3/3291 ,  H01L51/52 ,  G09G3/3216 ,  H01L27/32 ,  G09G3/3225

Abstract: An organic light-emitting device and an organic light-emitting display device using the same are discussed. In a structure in which emission layers that emit light having the same color are provided in a plurality of stacks, the emission layers have different properties such that the light emission efficiencies of the stacks are made uniform, whereby the lifespan of the organic light-emitting device is increased through charge balance.

公开(公告)号：US11950439B2

公开(公告)日：2024-04-02

申请号：US17959225

申请日：2022-10-03

Applicant: LG Display Co., Ltd.

Inventor： Eun-Jung Park ,  Jung-Keun Kim ,  Wook Song ,  Tae-Shick Kim

IPC: H10K50/13 ,  H10K50/11 ,  H10K50/15 ,  H10K50/19 ,  H10K59/12 ,  H10K59/38 ,  H10K85/30 ,  H10K101/00 ,  H10K101/10 ,  H10K101/30 ,  H10K101/40

CPC classification number: H10K50/131 ,  H10K50/11 ,  H10K50/15 ,  H10K50/19 ,  H10K59/38 ,  H10K59/12 ,  H10K85/342 ,  H10K2101/10 ,  H10K2101/27 ,  H10K2101/30 ,  H10K2101/40 ,  H10K2101/90

Abstract: Disclosed herein are a white organic light-emitting device. The white organic light-emitting device enables an overall improvement in characteristics such as color temperature, efficiency, luminance, and service life, by changing the configuration of different types of emission layers in contact with each other, and a display device using the same.

公开(公告)号：US11223022B2

公开(公告)日：2022-01-11

申请号：US16549897

申请日：2019-08-23

Applicant: LG Display Co., Ltd.

Inventor： Jae-Hyeon Kim ,  Eun-Jung Park ,  Seok-Hyun Kim ,  Kwan-Soo Kim

IPC: H01L51/52 ,  H01L51/50 ,  H01L51/00

Abstract: Disclosed are a light emitting device which has improved reliability by increasing bonding force between a cathode and organic layers contacting both surfaces thereof, and a transparent display device using the same.

公开(公告)号：US10943954B2

公开(公告)日：2021-03-09

申请号：US16412158

申请日：2019-05-14

Applicant: LG Display Co., Ltd.

Inventor： Eun-Jung Park ,  Kwan-Soo Kim ,  Ki-Min Lim

IPC: H01L27/32 ,  H01L51/50 ,  H01L51/52 ,  H01L27/12

Abstract: Disclosed are a panel capable of performing transparent display, a display device and a vehicle-mounted display device. A transmission part includes an organic light-emitting diode so as to perform light emission as well as display, thereby increasing an emission area, reducing the driving voltage required for emission driving, and consequently increasing the lifespan of the display device.

公开(公告)号：US10673005B2

公开(公告)日：2020-06-02

申请号：US16198293

申请日：2018-11-21

Applicant: LG Display Co., Ltd.

Inventor： Eun-Jung Park ,  Sang-Kyoung Moon ,  Seok-Hyun Kim

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

Abstract: An organic light-emitting device is disclosed. The organic light-emitting device includes light-emitting layers that emit light of the same color in a stack structure. The phosphorescence and fluorescence characteristics at the exit side and the inside of the organic light-emitting device are adjusted to improve a viewing angle, lifetime, and efficiency.

公开(公告)号：US10229954B2

公开(公告)日：2019-03-12

申请号：US15794395

申请日：2017-10-26

Applicant: LG Display Co., Ltd.

Inventor： Eun-Jung Park ,  Kwan-Soo Kim ,  Han-Byeol Seok ,  Seok-Hyun Kim

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

Abstract: An organic light-emitting device, including: a substrate including a blue sub-pixel, a green sub-pixel, and a red sub-pixel, each blue sub-pixel, green sub-pixel, and red sub-pixel respectively including an anode, a first common layer, a second common layer, and a cathode, in the blue sub-pixel, a blue light-emitting layer between the first common layer and the second common layer, in the green sub-pixel, a green light-emitting layer between the first common layer and the second common layer, and in the red sub-pixel, a red light-emitting layer between the first common layer and the second common layer, wherein HOMO energy levels of the blue, green, and red light-emitting layers are each lower than a HOMO energy level of the first common layer, and wherein the HOMO energy level of the green light-emitting layer is 0.2 eV or more higher than the HOMO energy level of the blue light-emitting layer.

公开(公告)号：US10014357B2

公开(公告)日：2018-07-03

申请号：US15718158

申请日：2017-09-28

Applicant: LG Display Co., Ltd.

Inventor： Han-Byeol Seok ,  Eun-Jung Park ,  Seok-Hyun Kim

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

CPC classification number: H01L27/3248 ,  H01L27/322 ,  H01L27/3246 ,  H01L51/5004 ,  H01L51/5056 ,  H01L51/5072 ,  H01L51/5203 ,  H01L51/5278 ,  H01L2251/5346

Abstract: An organic light-emitting device, including: an anode and a cathode opposite each other, a first stack and a second stack between the anode and the cathode, and a charge generation layer between the first stack and the second stack, the charge generation layer including an n-type charge generation layer and a p-type charge generation layer, wherein the p-type charge generation layer includes one first organic material, wherein the n-type charge generation layer includes a second organic material and an n-type dopant, wherein the n-type charge generation layer is divided into a first region contacting the first stack, a second region contacting the p-type charge generation layer, and a third region between the first region and the second region, and wherein a dopant content of the n-type dopant is stepwise increased in an order of: the first region, the third region, and the second region.