公开(公告)号：US20240138226A1

公开(公告)日：2024-04-25

申请号：US18450862

申请日：2023-08-15

Applicant: Samsung Display Co., LTD.

Inventor： SUN-KYU JOO ,  DAEHYEON KIM ,  Hong Il Kim ,  SANGJI PARK ,  KEUNCHAN OH ,  DOKYUNG YOUN ,  SONGEE LEE ,  CHANG-MIN LEE ,  HYUNSHIK LEE ,  WOO-MAN JI ,  TAE HYUNG HWANG

IPC: H10K59/38 ,  H10K59/12

CPC classification number: H10K59/38 ,  H10K59/12 ,  H10K2102/331

Abstract: A display device includes: a blue color filter layer in a blue transmission region of an upper substrate, and including first scattering particles; a green color filter layer in a green transmission region of the upper substrate, and including second scattering particles; a red color filter layer in a red transmission region of the upper substrate; a partition wall on the upper substrate and defining a blue transmission opening, a green transmission opening, and a red transmission opening, which overlap the blue transmission region, the green transmission region, and the red transmission region, respectively; a color conversion layer including red color conversion particles and third scattering particles, and accommodated in the red transmission opening; a light emitting element layer on a lower substrate facing the upper substrate; and a filling material between the upper substrate and the lower substrate.

公开(公告)号：US20250072203A1

公开(公告)日：2025-02-27

申请号：US18616884

申请日：2024-03-26

Applicant: Samsung Display Co., Ltd.

Inventor： JONGWON LEE ,  PILGU KANG ,  SEUNG CHEOL KIM ,  CHANG-MIN LEE ,  HAKCHOONG LEE ,  WONSUK HAN ,  JAEHOON HWANG

IPC: H10K50/13 ,  H10K59/38

Abstract: A light emitting element includes a first electrode, a first light emitting stack disposed on the first electrode, a second light emitting stack disposed on the first light emitting stack, a third light emitting stack disposed on the second light emitting stack, a fourth light emitting stack disposed on the third light emitting stack, a fifth light emitting stack disposed on the fourth light emitting stack, a second electrode disposed on the fifth light emitting stack, and charge generation layers disposed between adjacent ones of the first light emitting stack to the fifth light emitting stack. Each of the first light emitting stack to the fifth light emitting stack includes at least one emission layer, and the first light emitting stack to the fifth light emitting stack include at least two blue emission layers, at least one green emission layer, and at least one red emission layer.

公开(公告)号：US20240237469A9

公开(公告)日：2024-07-11

申请号：US18450862

申请日：2023-08-16

Applicant: Samsung Display Co., LTD.

Inventor： SUN-KYU JOO ,  DAEHYEON KIM ,  Hong Il Kim ,  SANGJI PARK ,  KEUNCHAN OH ,  DOKYUNG YOUN ,  SONGEE LEE ,  CHANG-MIN LEE ,  HYUNSHIK LEE ,  WOO-MAN JI ,  TAE HYUNG HWANG

IPC: H10K59/38 ,  H10K59/12

CPC classification number: H10K59/38 ,  H10K59/12 ,  H10K2102/331

Abstract: A display device includes: a blue color filter layer in a blue transmission region of an upper substrate, and including first scattering particles; a green color filter layer in a green transmission region of the upper substrate, and including second scattering particles; a red color filter layer in a red transmission region of the upper substrate; a partition wall on the upper substrate and defining a blue transmission opening, a green transmission opening, and a red transmission opening, which overlap the blue transmission region, the green transmission region, and the red transmission region, respectively; a color conversion layer including red color conversion particles and third scattering particles, and accommodated in the red transmission opening; a light emitting element layer on a lower substrate facing the upper substrate; and a filling material between the upper substrate and the lower substrate.

公开(公告)号：US20250072202A1

公开(公告)日：2025-02-27

申请号：US18630147

申请日：2024-04-09

Applicant: Samsung Display Co., Ltd.

Inventor： JONGWON LEE ,  SEUNG CHEOL KIM ,  CHANG-MIN LEE ,  HAKCHOONG LEE ,  JAEHOON HWANG

IPC: H10K50/13 ,  H10K50/115 ,  H10K50/12 ,  H10K50/15 ,  H10K50/16 ,  H10K59/35

Abstract: A light emitting element includes a first electrode, a second electrode facing the first electrode, and a plurality of light emitting structures stacked between the first electrode and the second electrode, each of the plurality of light emitting structures including a hole transport region, a light emitting layer, and an electron transport region. At least one of the light emitting structures is a green light emitting structure which emits green light, and the light emitting layer of the green light emitting structure includes a first sub-light emitting layer including a low refractive material having a refractive index value less than or equal to about 1.7 at 460 nm, and a second sub-light emitting layer not including the low refractive material, and disposed on the first sub-light emitting layer, so that the light emitting element may exhibit high light emission efficiency.

公开(公告)号：US20230209861A1

公开(公告)日：2023-06-29

申请号：US17822633

申请日：2022-08-26

Applicant: Samsung Display Co., Ltd.

Inventor： JONGWON LEE ,  DAEHYEON KIM ,  SEUNG CHEOL KIM ,  HEUNGSU PARK ,  CHANG-MIN LEE ,  HYUNSHIK LEE

IPC: H01L51/50 ,  H01L27/32

CPC classification number: H01L51/5092 ,  H01L27/3246 ,  H01L51/504 ,  H01L27/322 ,  H01L2251/301 ,  H01L2251/558

Abstract: Provided is a light emitting device including a first electrode, a hole transport region on the first electrode, a first light emitting layer on the hole transport region and configured to emit light of a first wavelength, a second light emitting layer on the hole transport region and configured to emit light of a second wavelength different from the first wavelength, an electron transport region including an electron transport layer on the first light emitting layer and the second light emitting layer, and an electron injection layer on the electron transport layer, and a second electrode on the electron transport region, wherein the electron injection layer includes magnesium (Mg) and ytterbium (Yb).