公开(公告)号：US20220209192A1

公开(公告)日：2022-06-30

申请号：US17554990

申请日：2021-12-17

Applicant: LG Display Co., Ltd.

Inventor： Jae Hyeon KIM ,  Kwan Soo KIM ,  Young Nam LIM ,  Min Jee KIM ,  Seok Hyun KIM ,  Min Geun SONG

IPC: H01L51/52

Abstract: Discussed is a display device for improving both transmittance and efficiency of light that is transmitted through a light-emitting unit and a transmissive unit due to a phase difference of π at an interface between an organic layer and an optical compensation layer of the display device.

公开(公告)号：US20180062104A1

公开(公告)日：2018-03-01

申请号：US15673325

申请日：2017-08-09

Applicant: LG Display Co., Ltd.

Inventor： Sun Kap KWON ,  Kwan Soo KIM ,  Kyu Il HAN ,  Kwang Hyun KIM ,  Mi Na KIM

IPC: H01L51/50 ,  H01L51/52

CPC classification number: H01L51/5092 ,  H01L51/504 ,  H01L51/5228 ,  H01L51/5231 ,  H01L51/5234 ,  H01L51/5253 ,  H01L51/5265 ,  H01L2251/558

Abstract: An organic light-emitting display device has improved transmittance and UV light reliability by optimizing the thickness and material of a cathode. An organic light-emitting display device comprises an organic light-emitting element on a substrate, the organic light-emitting element including an anode, an organic light emitting layer, and a cathode, an organic layer between the substrate and the organic light-emitting element, and an auxiliary layer adjacent to the cathode and including a material having electron injection ability, such that the influence of UV lights on the OLED device is reduced, thereby improving the efficiency and lifespan of the organic light-emitting element.

公开(公告)号：US20240172474A1

公开(公告)日：2024-05-23

申请号：US18427367

申请日：2024-01-30

Applicant: LG Display Co., Ltd.

Inventor： Jae Hyeon KIM ,  Kwan Soo KIM ,  Young Nam LIM ,  Min Jee KIM ,  Seok Hyun KIM ,  Min Geun SONG

IPC: H10K50/852 ,  H10K102/00

CPC classification number: H10K50/852 ,  H10K2102/351

Abstract: Discussed is a display device including a substrate having a first region and a second region, an anode at the first region, an organic layer at the second region and at the first region, a cathode on the organic layer of the first region, a bank between the first region and the second region, an optical compensation layer on the cathode of the first region and the organic layer of the second region, and an encapsulation layer on the optical compensation layer at the first region and the second region. The cathode is interposed between the optical compensation layer and the organic layer over the first region.

公开(公告)号：US20220209195A1

公开(公告)日：2022-06-30

申请号：US17548272

申请日：2021-12-10

Applicant: LG Display Co., Ltd.

Inventor： Jae Hyeon KIM ,  Kwan Soo KIM ,  Min Jee KIM ,  Seok Hyun KIM ,  Young Nam LIM ,  Min Geun SONG

IPC: H01L51/52 ,  H01L27/32

Abstract: Discussed is a light-emitting display device, which emits light unchanged by maintaining a cavity of internal light using reverse cavity characteristics through an optical compensation structure, and achieves high luminance characteristics despite a change in a viewing angle, prevents external light from being reflected, and is excellent in terms of efficiency and lifespan by combining the optical compensation structure with a color filter structure. The optical compensation structure includes at least one first layer having a first refractive index and at least one second layer having a second refractive index greater than the first refractive index, the first layer being thicker than the second layer.

公开(公告)号：US20220209161A1

公开(公告)日：2022-06-30

申请号：US17547080

申请日：2021-12-09

Applicant: LG DISPLAY CO., LTD.

Inventor： Min Jee KIM ,  Seok Hyun KIM ,  Kwan Soo KIM ,  Young Nam LIM ,  Jae Hyeon KIM ,  Min Geun SONG

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

Abstract: A display device includes: a substrate including: a first region, and a second region, an anode at the first region, an organic layer on the anode at the first region, and on the second region, an electron injection layer on the organic layer at the first region and the second region, the electron injection layer including a first metal, a cathode on the electron injection layer at the first region, the cathode including a second metal having a greater work function than a work function of the first metal, and a capping layer on the cathode at the first region, and on the electron injection layer at the second region.