公开(公告)号：US11056542B2

公开(公告)日：2021-07-06

申请号：US16852302

申请日：2020-04-17

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sangwoo Pyo ,  Hajin Song ,  Jihwan Yoon ,  Heunseung Lee

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

Abstract: A display device includes a substrate having a red pixel region, a blue pixel region, and a green pixel region. An anode is on the substrate, a light-emitting layer is on the anode, and a cathode is on the light-emitting layer, wherein the light-emitting layer includes a red light-emitting layer emitting red light on the red pixel region, a blue light-emitting layer emitting blue light on the blue pixel region, and a green light-emitting layer emitting green light on the red pixel region, the blue pixel region, and the green pixel region. Each of the red light, the blue light, and the green light is resonated between the anode and the cathode.

公开(公告)号：US10720473B2

公开(公告)日：2020-07-21

申请号：US16435335

申请日：2019-06-07

Applicant: Samsung Display Co., Ltd.

Inventor： Byeongwook Yoo ,  Jiyoung Kwon ,  Yoonmo Song ,  Jihwan Yoon ,  Sangwoo Pyo

IPC: H01L27/32 ,  H01L51/00 ,  H01L51/50 ,  H01L51/52

Abstract: An organic light-emitting device including: a plurality of first electrodes that are respectively patterned according to first, second, and third sub-pixels; a second electrode facing the plurality of first electrodes; a plurality of emission layers between the plurality of first electrodes and the second electrode; a hole transport region between the plurality of first electrodes and the plurality of emission layers; and at least one selected from a first auxiliary layer and a second auxiliary layer. The first auxiliary layer may be between the hole transport region and the first emission layer, the second auxiliary layer may be between the hole transport region and the second emission layer, and at least one selected from the first auxiliary layer and the second auxiliary layer may include a first compound represented by Formula 1:

公开(公告)号：US10665639B2

公开(公告)日：2020-05-26

申请号：US16355605

申请日：2019-03-15

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sangwoo Pyo ,  Hajin Song ,  Jihwan Yoon ,  Heunseung Lee

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

Abstract: A display device includes a substrate having a red pixel region, a blue pixel region, and a green pixel region. An anode is on the substrate, a light-emitting layer is on the anode, and a cathode is on the light-emitting layer, wherein the light-emitting layer includes a red light-emitting layer emitting red light on the red pixel region, a blue light-emitting layer emitting blue light on the blue pixel region, and a green light-emitting layer emitting green light on the red pixel region, the blue pixel region, and the green pixel region. Each of the red light, the blue light, and the green light is resonated between the anode and the cathode.

公开(公告)号：US10361252B2

公开(公告)日：2019-07-23

申请号：US15290796

申请日：2016-10-11

Applicant: Samsung Display Co., Ltd.

Inventor： Byeongwook Yoo ,  Jiyoung Kwon ,  Yoonmo Song ,  Jihwan Yoon ,  Sangwoo Pyo

IPC: H01L27/32 ,  H01L51/00 ,  H01L51/52 ,  H01L51/50

Abstract: An organic light-emitting device including: a plurality of first electrodes that are respectively patterned according to first, second, and third sub-pixels; a second electrode facing the plurality of first electrodes; a plurality of emission layers between the plurality of first electrodes and the second electrode; a hole transport region between the plurality of first electrodes and the plurality of emission layers; and at least one selected from a first auxiliary layer and a second auxiliary layer. The first auxiliary layer may be between the hole transport region and the first emission layer, the second auxiliary layer may be between the hole transport region and the second emission layer, and at least one selected from the first auxiliary layer and the second auxiliary layer may include a first compound represented by Formula 1:

公开(公告)号：US20180261791A1

公开(公告)日：2018-09-13

申请号：US15832263

申请日：2017-12-05

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Byeongwook Yoo ,  Yiseul Kim ,  Jihwan Yoon ,  Jaehoon Hwang

IPC: H01L51/52

CPC classification number: H01L51/5203 ,  H01L51/0054 ,  H01L51/0067 ,  H01L51/0072 ,  H01L51/0073 ,  H01L51/0074 ,  H01L51/0085 ,  H01L51/0087 ,  H01L51/0088 ,  H01L51/5016 ,  H01L51/5024

Abstract: An organic light-emitting device includes a first electrode, a second electrode facing the first electrode, and an emission layer between the first electrode and the second electrode. The emission layer includes a host, a photosensitizer, and a near-infrared luminescent compound having a maximum emission wavelength (λmax) of about 680 nm or more.

公开(公告)号：US20160056214A1

公开(公告)日：2016-02-25

申请号：US14802956

申请日：2015-07-17

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sangwoo Pyo ,  Hajin Song ,  Jihwan Yoon ,  Heunseung Lee

IPC: H01L27/32 ,  H01L51/56 ,  H01L51/50 ,  H01L51/52

CPC classification number: H01L27/3211 ,  H01L51/504 ,  H01L51/5218 ,  H01L51/5265

Abstract: A display device includes a substrate having a red pixel region, a blue pixel region, and a green pixel region. An anode is on the substrate, a light-emitting layer is on the anode, and a cathode is on the light-emitting layer, wherein the light-emitting layer includes a red light-emitting layer emitting red light on the red pixel region, a blue light-emitting layer emitting blue light on the blue pixel region, and a green light-emitting layer emitting green light on the red pixel region, the blue pixel region, and the green pixel region. Each of the red light, the blue light, and the green light is resonated between the anode and the cathode.

Abstract translation: 显示装置包括具有红色像素区域，蓝色像素区域和绿色像素区域的基板。 阳极在基板上，发光层在阳极上，阴极在发光层上，其中发光层包括在红色像素区域上发射红光的红色发光层， 在蓝色像素区域发射蓝色光的蓝色发光层和在红色像素区域，蓝色像素区域和绿色像素区域上发出绿色光的绿色发光层。 红色光，蓝色光和绿色光都在阳极和阴极之间共振。

公开(公告)号：US12193253B2

公开(公告)日：2025-01-07

申请号：US17575583

申请日：2022-01-13

Applicant: Samsung Display Co., Ltd.

Inventor： Jimyoung Ye ,  Seulong Kim ,  Hyekyun Lee ,  Hajin Song ,  Jihwan Yoon ,  Dongseob Jeong ,  Jaehoon Hwang

IPC: H10K50/13 ,  H10K50/11 ,  H10K50/19 ,  H10K59/122 ,  H10K59/38 ,  H10K101/00 ,  H10K101/10

Abstract: A light emitting devices includes a first electrode, a hole transport region on the first electrode, a first emission layer on the hole transport region, the first emission layer to emit light of a first wavelength, a second emission layer on the hole transport region and to emit light of a second wavelength, an electron transport region on the first and second emission layers, and a second electrode on the electron transport region. The first emission layer includes a first sub-emission layer including a first hole transport host and a first sub-dopant to emit the light of the first wavelength, and a second sub-emission layer including a first electron transport and a second sub-dopant to emit the light of the first wavelength. The second emission layer includes a second hole transport host, a second electron transport host, and a second dopant to emit the light of the second wavelength.

公开(公告)号：US20240074310A1

公开(公告)日：2024-02-29

申请号：US18315026

申请日：2023-05-10

Applicant: Samsung Display Co., Ltd.

Inventor： Jimyoung Ye ,  Jiyoung Song ,  Hajin Song ,  Jihwan Yoon ,  Jaehoon Hwang

IPC: H10K85/60 ,  H10K50/13

CPC classification number: H10K85/6572 ,  H10K50/13 ,  H10K85/6574 ,  H10K50/12

Abstract: Embodiments provide a light-emitting device that includes a first electrode, a second electrode facing the first electrode, and light-emitting units between the first electrode and the second electrode. The light-emitting units include at least one first light-emitting unit and at least one second light-emitting unit, the first light-emitting unit includes a first emission layer including a first host and a first dopant, the second light-emitting unit includes a second emission layer including a second host, a third host, and a second dopant, the first host includes a first compound represented by Formula 1, the second host includes at least one second compound each independently represented by one of Formulae 2a to 2c, the third host includes a third compound represented by Formula 3, wherein Formulae 1, 2a to 2c, and 3 are explained in the specification:

公开(公告)号：US11903288B2

公开(公告)日：2024-02-13

申请号：US18154471

申请日：2023-01-13

Applicant: Samsung Display Co., LTD.

Inventor： Hajin Song ,  Jihwan Yoon ,  Sangwoo Lee ,  Sangwoo Pyo

IPC: H10K59/35 ,  H10K50/15 ,  H10K50/16 ,  H10K50/11 ,  H10K50/125 ,  H10K59/131 ,  H10K71/00 ,  H10K50/852 ,  H10K59/12 ,  H10K85/60 ,  H10K101/10 ,  H10K101/40 ,  H10K101/00 ,  H10K101/30

CPC classification number: H10K59/35 ,  H10K50/11 ,  H10K50/125 ,  H10K50/15 ,  H10K50/16 ,  H10K59/131 ,  H10K71/00 ,  H10K50/852 ,  H10K59/1201 ,  H10K85/655 ,  H10K85/6572 ,  H10K2101/10 ,  H10K2101/27 ,  H10K2101/30 ,  H10K2101/40 ,  H10K2101/90

Abstract: An organic light-emitting device and display apparatus, the device including a first electrode; a second electrode facing the first electrode; an emission layer between the first and second electrode; a hole control layer between the first electrode and the emission layer; and an electron control layer between the emission layer and the second electrode, wherein the emission layer includes a plurality of sub-emission layers to emit light having different wavelengths, at least portions of the plurality of sub-emission layers do not overlap one another, the plurality of sub-emission layers include: a first sub-emission layer including a first color light-emitting dopant, and a second sub-emission layer including a second color light-emitting dopant, the first and second sub-emission layers each include a hole-transporting and electron-transporting host which form an exciplex, and a triplet energy of the exciplex is equal to or greater than triplet energies of the first and second color light-emitting dopant.

公开(公告)号：US11653517B2

公开(公告)日：2023-05-16

申请号：US17033772

申请日：2020-09-26

Applicant: Samsung Display Co., Ltd.

Inventor： Dongchan Kim ,  Jiyoung Moon ,  Heechang Yoon ,  Jihye Lee ,  Hakchoong Lee ,  Haemyeong Lee ,  Yoonhyeung Cho ,  Myungsuk Han ,  Jihwan Yoon ,  Jonghyuk Lee

IPC: H01L51/50 ,  H01L51/56 ,  H01L27/32

CPC classification number: H01L51/5056 ,  H01L27/322 ,  H01L27/3244 ,  H01L51/5016 ,  H01L51/5072 ,  H01L51/5092 ,  H01L51/5096 ,  H01L51/56

Abstract: A light-emitting device includes a first electrode; a second electrode facing the first electrode; m emission units between the first electrode and the second electrode; and m−1 charge-generating unit(s) between adjacent ones of the emission units, where m is a natural number of 2 or more. The emission units each include an emission layer. At least one of the charge-generating unit(s) includes an n-type charge-generating layer and a p-type charge-generating layer; and the n-type charge-generating layer includes a first material and a second material. The first material includes an organic electron transport compound; and the second material includes at least one selected from an alkali metal, an alkali metal alloy, an alkaline earth metal, an alkaline earth metal alloy, a lanthanide metal, and a lanthanide metal alloy. The light-emitting device may have improved hole and electron balance, a decreased driving voltage, and excellent efficiency and/or lifespan characteristics.