公开(公告)号：US20230389402A1

公开(公告)日：2023-11-30

申请号：US18296481

申请日：2023-04-06

Applicant: Samsung Display Co., LTD.

Inventor： JONGWON LEE ,  SEUNG CHEOL KIM ,  Heung Su PARK ,  Chang-Min LEE ,  Hyun Shik LEE

IPC: H10K59/80 ,  H10K59/35

CPC classification number: H10K59/879 ,  H10K59/35 ,  H10K59/873

Abstract: A display device includes a light emitting device disposed on a substrate, a capping layer disposed on the light emitting device, and an encapsulation layer disposed on the capping layer. The capping layer includes a first surface facing the encapsulation layer, the first surface of the capping layer includes a protrusion protruding toward the encapsulation layer, and a height of the protrusion is greater than or equal to about 600 angstroms in a cross-sectional view.

公开(公告)号：US20230038628A1

公开(公告)日：2023-02-09

申请号：US17805619

申请日：2022-06-06

Applicant: Samsung Display Co., LTD.

Inventor： Won Suk HAN ,  Nam Su KANG ,  Heung Su PARK ,  Hui Ju PARK ,  Song Eun LEE ,  Hyun Shik LEE ,  Jae Hoon HWANG

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

Abstract: A light emitting device includes: a first electrode; a second electrode overlapping the first electrode; m light emitting units between the first electrode and the second electrode; and m-1 charge generating layers between adjacent light emitting units, wherein the charge generating layer includes: an n-type charge generating layer and a p-type charge generating layer; at least one of a plurality of n-type charge generating layers includes a dopant including an alkali metal, and at least one of a plurality of n-type charge generating layers includes a dopant including a lanthanum metal; contents of the alkali metal and the lanthanum metal doped in the n-type charge generating layer are different from each other; and the m is a natural number of greater than or equal to 3.

公开(公告)号：US20200185638A1

公开(公告)日：2020-06-11

申请号：US16695833

申请日：2019-11-26

Applicant: Samsung Display Co., Ltd.

Inventor： Jung Ho CHOI ,  Nam Su KANG ,  Yi Seul KIM ,  Heung Su PARK ,  Hyun Shik LEE ,  Heun Seung LEE ,  Jae Hoon HWANG

IPC: H01L51/52 ,  H01L27/32

Abstract: A display device includes: a first base substrate which comprises a plurality of pixels; a pixel electrode on the first base substrate in each of the pixels and comprises a reflective film; an organic layer on the pixel electrode; and a common electrode on the organic layer, wherein the pixel electrode has a reflectance of 80% or more for light in a first wavelength range of 420 nm to 470 nm.

公开(公告)号：US20180261655A1

公开(公告)日：2018-09-13

申请号：US15788097

申请日：2017-10-19

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sang Woo LEE ,  Heung Su PARK ,  Ji Hwan YOON ,  Jae Hoon HWANG

IPC: H01L27/32

CPC classification number: H01L27/3227 ,  H01L27/3211 ,  H01L27/3213 ,  H01L27/323 ,  H01L27/3269 ,  H01L51/5265

Abstract: A light emitting display device includes a substrate having a first pixel, a second pixel, a third pixel, and an infrared emission portion. The first, second, and third pixels emit light of different colors. The light emitting device also includes a first electrode on the substrate, a second electrode overlapping the first electrode, an emission layer between the first electrode and the second electrode, and an auxiliary layer between the first electrode and the emission layer. The auxiliary layer includes a first auxiliary layer on the first pixel and a second auxiliary layer in the infrared emission portion. The first auxiliary layer and second auxiliary layer include a same material.