公开(公告)号：US20190096959A1

公开(公告)日：2019-03-28

申请号：US15920152

申请日：2018-03-13

Applicant: Samsung Display Co., Ltd.

Inventor： Heun Seung LEE ,  Hyo Yeon KIM ,  Hyun Shik LEE ,  Jae Hoon HWANG

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

CPC classification number: H01L27/3213 ,  H01L27/3225 ,  H01L51/0058 ,  H01L51/006 ,  H01L51/007 ,  H01L51/0072 ,  H01L51/0078 ,  H01L51/0081 ,  H01L51/0085 ,  H01L51/0086 ,  H01L51/0087 ,  H01L51/0088 ,  H01L51/5004 ,  H01L51/5012 ,  H01L51/5016 ,  H01L51/5096 ,  H01L51/5265 ,  H01L51/5278 ,  H01L2051/0063 ,  H01L2251/552 ,  H01L2251/558

Abstract: A light emitting display device includes: a first electrode positioned on a substrate; a second electrode overlapping the first electrode; a red emission layer, a green emission layer, a blue emission layer, and an infrared ray emission layer emitting light of different wavelengths and positioned between the first electrode and the second electrode; a green resonance auxiliary layer positioned between the green emission layer and the first electrode; and a blocking layer positioned between the green resonance auxiliary layer and the green emission layer, wherein the infrared ray emission layer and the green resonance auxiliary layer include the same material, and LUMO energy of the blocking layer is larger than LUMO energy of a green light emitting dopant included in the green emission layer.

公开(公告)号：US20180261652A1

公开(公告)日：2018-09-13

申请号：US15791513

申请日：2017-10-24

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyo Yeon KIM ,  Yi Seul KIM ,  Heun Seung LEE ,  Ji Hwan YOON ,  Jae Hoon HWANG

IPC: H01L27/30 ,  H01L27/32 ,  H01L51/00 ,  H01L51/42

Abstract: A light emitting display device includes a substrate that includes a first pixel, a second pixel, a third pixel, and an infrared ray emission portion, the first pixel, the second pixel, and the third pixel representing different colors, a first electrode on the substrate, a second electrode that overlaps 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 emission layer may include a first emission layer in the first pixel and an infrared ray emission layer in the infrared ray emission portion, the auxiliary layer may include a first auxiliary layer in the first pixel, and the infrared ray emission layer and the first auxiliary layer may include the same material.