公开(公告)号：US20210296606A1

公开(公告)日：2021-09-23

申请号：US17088178

申请日：2020-11-03

Applicant: Samsung Display Co., Ltd.

Inventor： Hyeongpil KIM ,  Wonjong KIM ,  Yeongrong PARK ,  Dongkyu SEO ,  Junyong SHIN ,  Junghee AN ,  Byeongwook YOO ,  Daeho LEE ,  Byungseok LEE

IPC: H01L51/50 ,  H01L51/52

Abstract: An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; m emission units stacked between the first electrode and the second electrode, each emission unit including at least one emission layer; and m−1 charge generating layers respectively located between two adjacent emission units among them emission units, each of the charge generating layers including one n-type charge generating region and one p-type charge generating region, wherein m is an integer of 2 or more, and at least one of the m−1 p-type charge generating regions includes a phosphate-containing compound.

公开(公告)号：US20210359278A1

公开(公告)日：2021-11-18

申请号：US17306653

申请日：2021-05-03

Applicant: Samsung Display Co., Ltd.

Inventor： Hyeongpil KIM

IPC: H01L51/52 ,  H01L51/00

Abstract: Provided are a light-emitting device and a light-emitting apparatus including the same. The light-emitting device includes a first electrode, a second electrode facing the first electrode, and an interlayer between the first electrode and the second electrode and including an emission layer; and optionally, a capping layer on the second electrode, wherein i) the second electrode includes a first material, or ii) when the light-emitting device includes the capping layer, at least one selected from the second electrode and the capping layer includes the first material, and the first material has a refractive index in a range of about 1.6 to about 2.4 in a wavelength band of blue light, green light, and red light, and a band gap of the first material is more than about 1.5 eV.

公开(公告)号：US20220123250A1

公开(公告)日：2022-04-21

申请号：US17307451

申请日：2021-05-04

Applicant: Samsung Display Co., Ltd.

Inventor： Hyeongpil KIM ,  Jungmin KANG ,  Kyungsik KIM ,  Seokgyu YOON ,  Jaeyong LEE ,  Kunwook CHO

IPC: H01L51/50 ,  H01L27/32

Abstract: A light-emitting device includes a first electrode, a second electrode facing the first electrode, and an interlayer between the first electrode and the second electrode, the interlayer including an emission layer. The first electrode may be doped with a metal oxide having a work function of less than about −5.05 electron volts (eV), and a layer including a halide of a lanthanide may be between the first electrode and the emission layer. An electronic apparatus including the light-emitting device is also provided.

公开(公告)号：US20240373682A1

公开(公告)日：2024-11-07

申请号：US18776881

申请日：2024-07-18

Applicant: Samsung Display Co., Ltd.

Inventor： Hyeongpil KIM ,  Byounghun SUNG

IPC: H10K59/122 ,  H10K50/13 ,  H10K59/38

Abstract: A display apparatus includes a lower substrate, a first pixel electrode, a second pixel electrode, and a third pixel electrode that are disposed apart from each other on the lower substrate, a pixel defining layer overlapping an edge of each of the first pixel electrode, the second pixel electrode, and the third pixel electrode, the pixel defining layer including a first opening exposing a center portion of the first pixel electrode, a second opening exposing a center portion of the second pixel electrode, and a third opening exposing a center portion of the third pixel electrode, and a bank disposed on the pixel defining layer and isolating the first opening from the second opening and the third opening.

公开(公告)号：US20210408380A1

公开(公告)日：2021-12-30

申请号：US17146928

申请日：2021-01-12

Applicant: Samsung Display Co., Ltd.

Inventor： Jaeweon HUR ,  Seulong KIM ,  Hyeongpil KIM ,  Sungsoo BAE ,  Dongchan LEE

IPC: H01L51/00

Abstract: An electronic apparatus includes an organic light-emitting device including: a first electrode, a second electrode facing the first electrode, m light-emitting units stacked between the first electrode and the second electrode and including at least one emission layer; and m-1 charge generating layers, each located between two neighboring light-emitting units of the m light-emitting units and including an n-type charge generating layer and a p-type charge generation layer, wherein m is an integer of 2 or more, at least one of the m-1 p-type charge generation layers includes a first doping layer and a second doping layer, the first doping layer includes a first organic material and a first inorganic material, the second doping layer includes a second organic material and a second inorganic material, and the first inorganic material and the second inorganic material are different from each other.

公开(公告)号：US20200266382A1

公开(公告)日：2020-08-20

申请号：US16684325

申请日：2019-11-14

Applicant: Samsung Display Co., Ltd.

Inventor： Dongkyu SEO ,  Wonjong KIM ,  Yeongrong PARK ,  Hyeongpil KIM ,  Junghee AN ,  Byeongwook YOO ,  Byungseok LEE

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

Abstract: A luminescence device includes a first electrode, a first emission portion disposed on the first electrode, a second electrode disposed on the first emission portion, and a capping layer disposed on the second electrode and including a metal atom and a metal halide compound, wherein the metal atom is a lanthanide metal, a transition metal, or a post-transition metal and the metal halide compound is formed by combining an alkali metal atom and a halogen atom.

公开(公告)号：US20220255011A1

公开(公告)日：2022-08-11

申请号：US17544832

申请日：2021-12-07

Applicant: Samsung Display Co., Ltd.

Inventor： Jaeyong LEE ,  Seokgyu YOON ,  Jungmin KANG ,  Kyungsik KIM ,  Hyeongpil KIM ,  Jaejin LYU ,  Kunwook CHO

IPC: H01L51/00

Abstract: A light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an interlayer between the first electrode and the second electrode and including an emission layer, a hole transport region between the first electrode and the emission layer, and an electron transport region between the emission layer and the second electrode, wherein the hole transport region includes a hole injection layer and a hole transport layer, sequentially arranged between the first electrode and the emission layer, the first electrode includes aluminum, an alloy including aluminum, or any combination thereof, the hole injection layer consists of a first inorganic material as described herein, and an absolute value of a work function of the first inorganic material is greater than or equal to an absolute value of a HOMO energy level of the hole transport layer, and the hole transport region excludes a p-dopant.

公开(公告)号：US20220181410A1

公开(公告)日：2022-06-09

申请号：US17354404

申请日：2021-06-22

Applicant: Samsung Display Co., Ltd.

Inventor： Hyeongpil KIM ,  Byounghun SUNG

IPC: H01L27/32

Abstract: A display apparatus includes a lower substrate, a first pixel electrode, a second pixel electrode, and a third pixel electrode that are disposed apart from each other on the lower substrate, a pixel defining layer overlapping an edge of each of the first pixel electrode, the second pixel electrode, and the third pixel electrode, the pixel defining layer including a first opening exposing a center portion of the first pixel electrode, a second opening exposing a center portion of the second pixel electrode, and a third opening exposing a center portion of the third pixel electrode, and a bank disposed on the pixel defining layer and isolating the first opening from the second opening and the third opening.

公开(公告)号：US20210217964A1

公开(公告)日：2021-07-15

申请号：US17142900

申请日：2021-01-06

Applicant: Samsung Display Co., Ltd.

Inventor： Hyeongpil KIM ,  Wonjong KIM ,  Hyoyeon KIM ,  Yeongrong PARK ,  Dongkyu SEO ,  Junyong SHIN ,  Junghee AN ,  Byeongwook YOO ,  Daeho LEE ,  Byungseok LEE ,  Jaejin LYU

IPC: H01L51/00

Abstract: An organic light-emitting device and a flat-display apparatus, the organic light-emitting device including: a charge generating layer between two adjacent emission units, the charge generating layer including an n-type charge generating layer and a p-type charge generating layer, wherein at least one of the n-type and the p-type charge generating layers includes a first inorganic material selected from a late transition metal, a metalloid, a compound including late transition metals, a compound including metalloids, a compound including a late transition metal and a metalloid, and combinations thereof, the late transition metal is at least one selected from Al, Ga, In, Tl, Sn, Pb, Fl, Bi, and Po, the metalloid is at least one selected from B, Si, Ge, As, Sb, Te, and At, and when the late transition metal is at least one selected from Al, In, and Pb, the first inorganic material is the compound including a late transition metal and a metalloid.