公开(公告)号：US10658432B2

公开(公告)日：2020-05-19

申请号：US16432375

申请日：2019-06-05

Applicant: SAMSUNG DISPLAY CO., LTD.

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

IPC: H01L27/32 ,  H01L51/56 ,  H01L51/50 ,  H01L51/52 ,  H01L51/00

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：US10326111B2

公开(公告)日：2019-06-18

申请号：US14884183

申请日：2015-10-15

Applicant: Samsung Display Co., Ltd.

Inventor： Byeongwook Yoo ,  Hyoyeon Kim ,  Yoonmo Song ,  Hajin Song ,  Jihwan Yoon ,  Sangwoo Pyo

IPC: H01L51/54 ,  H01L51/52 ,  H01L27/32

Abstract: Provided are an organic light-emitting diode display apparatus and a method of manufacturing the same. In an exemplary embodiment, an organic light-emitting diode (OLED) display apparatus includes a substrate, an OLED device on the substrate, and a capping layer on the organic light-emitting device. The capping layer includes a first capping layer and a second capping layer. The second capping layer includes a first material and a second material. The first material and the second material are different from each other.

公开(公告)号：US20190123291A1

公开(公告)日：2019-04-25

申请号：US16053321

申请日：2018-08-02

Applicant: Samsung Display Co., Ltd.

Inventor： Pyungeun Jeon ,  Jihye Shim ,  Jehong Choi ,  Jihwan Yoon ,  Sangwoo Pyo

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

Abstract: A light-emitting device is provided. The light-emitting device includes: a plurality of first electrodes positioned on a first sub-pixel, a second sub-pixel, and a third sub-pixel, respectively; a second electrode facing the plurality of first electrodes; a first emission layer on the first sub-pixel to emit a first color light; a second emission layer on the second sub-pixel to emit a second color light; a first layer integrated with the first sub-pixel, the second sub-pixel, and the third sub-pixel; a first auxiliary layer between the first layer and the first emission layer; and a first interlayer between the first auxiliary layer and the first emission layer. The absolute value of the highest occupied molecular orbital (HOMO) energy level of the first interlayer is greater than the absolute value of the HOMO energy level of the first auxiliary layer, and is smaller than the absolute value of the HOMO energy level of the first emission layer. The absolute value of the lowest unoccupied molecular orbital (LUMO) energy level of the first interlayer is greater than that of a LUMO energy level of the first auxiliary layer, and is smaller than the absolute value of the LUMO energy level of the first emission layer.

公开(公告)号：US09905616B2

公开(公告)日：2018-02-27

申请号：US15141910

申请日：2016-04-29

Applicant: SAMSUNG DISPLAY CO., LTD.

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

IPC: H01L29/08 ,  H01L35/24 ,  H01L51/00 ,  H01L27/32 ,  H01L51/50 ,  H01L51/56

CPC classification number: H01L27/3211 ,  H01L27/3276 ,  H01L51/5004 ,  H01L51/5016 ,  H01L51/5036 ,  H01L51/5056 ,  H01L51/5072 ,  H01L51/5265 ,  H01L51/56 ,  H01L2227/323 ,  H01L2251/5376 ,  H01L2251/5384 ,  H01L2251/552

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：US20170358634A1

公开(公告)日：2017-12-14

申请号：US15668546

申请日：2017-08-03

Applicant: SAMSUNG DISPLAY CO., LTD.

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

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

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.

公开(公告)号：US20170154931A1

公开(公告)日：2017-06-01

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 ,  H01L51/50 ,  H01L51/52

CPC classification number: H01L27/3206 ,  H01L27/3211 ,  H01L51/0052 ,  H01L51/0055 ,  H01L51/0058 ,  H01L51/0059 ,  H01L51/006 ,  H01L51/0072 ,  H01L51/0073 ,  H01L51/0074 ,  H01L51/0094 ,  H01L51/5056 ,  H01L51/5096 ,  H01L51/5218 ,  H01L51/5234 ,  H01L51/5265 ,  H01L2251/558

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: