公开(公告)号：US20220181588A1

公开(公告)日：2022-06-09

申请号：US17678973

申请日：2022-02-23

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：US20200227686A1

公开(公告)日：2020-07-16

申请号：US16829653

申请日：2020-03-25

Applicant: LG Display Co., Ltd.

Inventor： Han-Sun PARK ,  Won-Hoe KOO ,  Ji-Hyang JANG

IPC: H01L51/52 ,  H01L27/32

Abstract: An OLED display device includes a first substrate including a plurality of sub-pixels each including an emission area and a non-emission area; organic light emitting diodes on the first substrate; a second substrate opposed to the first substrate; a black matrix and a color filter layer on one side of the second substrate; a spacer on the black matrix and overlapping or parallel to one of the plurality of the gate lines and the plurality of data lines; and a film layer on the spacer, wherein an air gap is provided between the second substrate and the film layer, and a part of the film layer is exposed by the air gap.

公开(公告)号：US20190097177A1

公开(公告)日：2019-03-28

申请号：US16142511

申请日：2018-09-26

Applicant: LG Display Co., Ltd.

Inventor： Yong-Hoon CHOI ,  Won-Hoe KOO

IPC: H01L51/52 ,  H01L27/32

CPC classification number: H01L51/5275 ,  H01L27/3225 ,  H01L27/3244 ,  H01L31/02366 ,  H01L51/5209 ,  H01L51/5225

Abstract: An electroluminescent display device includes a substrate including an emissive area and a non-emissive area, a plurality of protrusions over the substrate and in the emissive area, each of the plurality of protrusions spaced apart from each other with an air gap therebetween, a high-viscosity material layer on the plurality of protrusions and the air gaps, a first electrode on the high-viscosity material layer, an emitting layer on the first electrode, and a second electrode on the emitting layer.

公开(公告)号：US20190096976A1

公开(公告)日：2019-03-28

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 ,  H01L33/06 ,  H01L27/15 ,  H01L33/58 ,  H01L33/52

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：US20190067642A1

公开(公告)日：2019-02-28

申请号：US16109449

申请日：2018-08-22

Applicant: LG Display Co., Ltd.

Inventor： Jin-Tae KIM ,  Won-Hoe KOO ,  Yong-Hoon CHOI

IPC: H01L51/52 ,  H01L27/32

CPC classification number: H01L51/5262 ,  H01L27/322 ,  H01L27/3246 ,  H01L27/3258 ,  H01L51/5206 ,  H01L51/5275

Abstract: A light extraction pattern is disposed in each hole of a first electrode, or a first electrode including round portions and pattern portions is disposed so that light trapped in an emission layer can be output uniformly. In this way, the light extraction efficiency can be effectively improved, and occurrence of a black area can be prevented.

公开(公告)号：US20180090717A1

公开(公告)日：2018-03-29

申请号：US15717640

申请日：2017-09-27

Applicant: LG Display Co., Ltd.

Inventor： Hyun-Soo LIM ,  Kang-Ju LEE ,  Soo-Kang KIM ,  Won-Hoe KOO ,  Min-Geun CHOI

IPC: H01L51/52 ,  H01L27/32

Abstract: The present disclosure relates to an organic light emitting diode display device including: a substrate having an emitting area and a non-emitting area; an insulating layer on the substrate, the insulating layer including a plurality of convex portions, a plurality of connecting portions and at least one wall in the emitting area, a height of the at least one wall is greater than a height of the plurality of convex portions; a first electrode on the substrate; an emitting layer on the first electrode; and a second electrode on the emitting layer, the first electrode, the emitting layer and the second electrode constituting a light emitting diode.

公开(公告)号：US20230255087A1

公开(公告)日：2023-08-10

申请号：US18305270

申请日：2023-04-21

Applicant: LG Display Co., LTD.

Inventor： Ji-Hyang JANG ,  Won-Hoe KOO ,  Tae-Shick KIM

IPC: H10K59/38 ,  H10K50/844 ,  H10K59/122

CPC classification number: H10K59/38 ,  H10K50/844 ,  H10K59/122

Abstract: Various embodiments provide an organic light emitting diode display device that includes a substrate having an emitting area and a non-emitting area; an overcoating layer on the substrate and including a convex portion and a concave portion. The convex portion includes a bottom surface portion, a top surface portion and a side surface portion between the bottom surface portion and the top surface portion. The organic light emitting diode further includes a first electrode on the overcoating layer; a light emitting layer on the first electrode; and a second electrode on the light emitting layer. The side surface portion is a main emission region having a first emission spectrum and the concave portion is an auxiliary emission region having a second emission spectrum different from the first emission spectrum. The main emission region and the auxiliary emission region are an effective emission region.

公开(公告)号：US20190334126A1

公开(公告)日：2019-10-31

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 ,  H01L51/50 ,  H01L27/32

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：US20190189966A1

公开(公告)日：2019-06-20

申请号：US16212484

申请日：2018-12-06

Applicant: LG Display Co., Ltd.

Inventor： Ji-Hyang JANG ,  So-Young JO ,  Won-Hoe KOO

IPC: H01L51/52 ,  H01L27/32

CPC classification number: H01L51/5268 ,  H01L27/322 ,  H01L27/3244 ,  H01L51/5275

Abstract: An organic light emitting diode display device includes: a substrate including a plurality of pixel regions which each include an emission region and a non-emission region around the emission region; a plurality of scattering portions disposed on the substrate, corresponding to the emission region, and spaced apart from each other; a first overcoat layer disposed on the substrate having the plurality of scattering portions and including a plurality of concave portions which respectively correspond to the plurality of scattering portions; a first electrode disposed on the first overcoat layer in each of the plurality of pixel regions; and an organic light emitting layer and a second electrode sequentially disposed on the first electrode.

公开(公告)号：US20190165320A1

公开(公告)日：2019-05-30

申请号：US16198205

申请日：2018-11-21

Applicant: LG Display Co., Ltd.

Inventor： Yong-Hoon CHOI ,  Won-Hoe KOO ,  Woo-Ram YOUN

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

Abstract: An electroluminescent display device includes a thin film transistor disposed on a substrate; a passivation layer disposed on the thin film transistor; a plurality of metallic patterns disposed to be spaced apart from each other on the passivation layer; a reflective electrode disposed conforming to the shapes of the plurality of metallic patterns and a top surface of the passivation layer and including a plurality of protruding portions; an overcoat layer disposed on the passivation layer and the reflective electrode and including an opening configured to expose a top surface of each of the plurality of protruding portions; a first electrode disposed on the reflective electrode and the overcoat layer and electrically connected to the reflective electrode; an light-emitting layer disposed on the first electrode; and a second electrode disposed on the light-emitting layer.