公开(公告)号：US10886350B2

公开(公告)日：2021-01-05

申请号：US16134193

申请日：2018-09-18

Applicant: LG Display Co., Ltd.

Inventor： Ji-Hyang Jang ,  Won-Hoe Koo ,  Min-Geun Choi

IPC: H01L27/32 ,  H01L51/50 ,  H01L51/52 ,  H01L33/52 ,  H01L33/06 ,  H01L27/15 ,  H01L33/58

Abstract: An electroluminescent device includes a substrate which has a subpixel including a main subpixel and an auxiliary subpixel; a first thin film transistor and a second thin film transistor disposed on the substrate, the first thin film transistor corresponding to the main subpixel and the second thin film transistor corresponding to the auxiliary subpixel; an overcoat layer on the first and second thin film transistors; a first bottom electrode and a second bottom electrode on the overcoat layer, the first bottom electrode corresponding to the main subpixel and the second bottom electrode corresponding to the auxiliary subpixel; a light-emitting layer on the first bottom electrode and the second bottom electrode; and a top electrode on the light-emitting layer, wherein the main subpixel and the auxiliary subpixel have different color temperatures.

公开(公告)号：US10714709B2

公开(公告)日：2020-07-14

申请号：US16505489

申请日：2019-07-08

Applicant: LG Display Co., Ltd.

Inventor： Ji-Hyang Jang ,  So-Young Jo ,  Won-Hoe Koo

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

Abstract: Provided are an organic light-emitting diode (OLED) and an organic light-emitting device including the same. The OLED includes a first electrode, an organic emissive layer which includes a plurality of convex curves or a plurality of concave curves in a light-emitting region and of which a slope of an inclined plane of an upper region with respect to a horizontal line dividing a height of the plurality of convex curves into halves is greater than a slope of an inclined plane of a lower region thereof, and a second electrode provided on the organic emissive layer. Accordingly, the OLED and the organic light-emitting device including the same are capable of improving current efficiency.

公开(公告)号：US20200058721A1

公开(公告)日：2020-02-20

申请号：US16536230

申请日：2019-08-08

Applicant: LG Display Co., Ltd.

Inventor： Dong-Min Sim ,  Won-Hoe Koo ,  Ji-Hyang Jang

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

Abstract: The present disclosure is directed to an organic light emitting diode display device includes a substrate having an emitting area and a non-emitting area; an overcoating layer on a first surface of the substrate and including a plurality of convex portions and a plurality of concave portions, at least one of the plurality of convex portions including a bottom surface portion, a top surface portion and a side surface portion between the bottom and top surface portions; a light emitting diode on the overcoating layer; and a cholesteric liquid crystal layer at a transmission direction of a light emitted from the light emitting diode.