公开(公告)号：US20190006626A1

公开(公告)日：2019-01-03

申请号：US16023106

申请日：2018-06-29

Applicant: LG Display Co., Ltd.

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

IPC: H01L51/52 ,  H01L27/32

CPC classification number: H01L51/5271 ,  G09G3/2003 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3275 ,  H01L27/3213 ,  H01L27/322 ,  H01L27/3258 ,  H01L27/3272 ,  H01L51/5209 ,  H01L51/5225 ,  H01L51/5262 ,  H01L51/5281 ,  H01L2251/558

Abstract: Disclosed is a light emitting display device which facilitates to improve light-extraction efficiency of pixels, and to maximize light-extraction efficiency of each pixel, wherein the light emitting display device includes a substrate having a first area and a second area, a planarization coating layer prepared on the substrate and configured to have a first curve pattern prepared on the first area, and a second curve pattern prepared on the second area, and an emission device prepared on the first curve pattern and the second curve pattern, wherein a thickness of the planarization coating layer overlapping the first curve pattern is different from a thickness of the planarization coating layer overlapping the second curve pattern, and each of the first curve pattern and the second curve pattern includes a plurality of protruding portions having an aspect ratio of 0.4˜0.6.

公开(公告)号：US20200083482A1

公开(公告)日：2020-03-12

申请号：US16672476

申请日：2019-11-03

Applicant: LG Display Co., Ltd.

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

IPC: H01L51/52 ,  H01L27/32

Abstract: Disclosed is a light emitting display device which facilitates to improve light-extraction efficiency of pixels, and to maximize light-extraction efficiency of each pixel, wherein the light emitting display device includes a substrate having a first area and a second area, a planarization coating layer prepared on the substrate and configured to have a first curve pattern prepared on the first area, and a second curve pattern prepared on the second area, and an emission device prepared on the first curve pattern and the second curve pattern, wherein a thickness of the planarization coating layer overlapping the first curve pattern is different from a thickness of the planarization coating layer overlapping the second curve pattern, and each of the first curve pattern and the second curve pattern includes a plurality of protruding portions having an aspect ratio of 0.4˜0.6.

公开(公告)号：US20200006709A1

公开(公告)日：2020-01-02

申请号：US16455363

申请日：2019-06-27

Applicant: LG DISPLAY CO., LTD.

Inventor： Dong-Min SIM ,  Ji-Hyang JANG ,  Jin-Tae KIM

IPC: H01L51/52 ,  H01L27/32

Abstract: An organic light emitting diode display device includes a substrate, an overcoating layer on the substrate and including a plurality of convex portions and a plurality of concave portions, a first electrode on the overcoating layer, a light emitting layer on the first electrode and including a first emitting material layer, and a second electrode on the light emitting layer, wherein the first emitting material layer in the plurality of convex portions is separated from the second electrode by a first distance, and the first emitting material layer in the plurality of concave portions is separated from the second electrode by a second distance different from the first distance.

公开(公告)号：US20210217818A1

公开(公告)日：2021-07-15

申请号：US17196859

申请日：2021-03-09

Applicant: LG Display Co., Ltd

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

IPC: H01L27/32 ,  H01L51/52

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：US20200303685A1

公开(公告)日：2020-09-24

申请号：US16898041

申请日：2020-06-10

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：US20200058708A1

公开(公告)日：2020-02-20

申请号：US16536209

申请日：2019-08-08

Applicant: LG Display Co., Ltd

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

IPC: H01L27/32 ,  H01L51/52

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：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：US20210175290A1

公开(公告)日：2021-06-10

申请号：US17111279

申请日：2020-12-03

Applicant: LG Display Co., Ltd.

Inventor： Ji-Hyang JANG ,  Tae-Shick KIM ,  So-Young JO ,  Jin-Tae KIM

IPC: H01L27/32 ,  H01L51/52

Abstract: An organic light emitting diode display device includes a substrate having first, second, third and fourth subpixels; first, second and third color filter layers in the second, third and fourth subpixels, respectively, on the substrate; a first wavelength converting layer in the first subpixel on the substrate and second and third wavelength converting layers on the first and second color filter layers, respectively; and a light emitting diode in each of the first, second, third and fourth subpixels over the first, second and third wavelength converting.

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：US20190165323A1

公开(公告)日：2019-05-30

申请号：US16197059

申请日：2018-11-20

Applicant: LG Display Co., Ltd.

Inventor： So-Young JO ,  Ji-Hyang JANG ,  Min-Geun CHOI ,  Woo-Ram YOUN

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

Abstract: An electroluminescent display device comprises a substrate; a thin film transistor disposed on the substrate; an overcoat layer disposed on the thin film transistor; and a light-emitting diode electrically connected to the thin film transistor through the overcoat layer, wherein the light-emitting diode includes a first electrode, a light-emitting layer on the first electrode and a second electrode on the light-emitting layer, and an emissive area is an area in which the light-emitting layer emits light by the first electrode or the second electrode, wherein the overcoat layer includes a micro lens at a position corresponding to the emissive area, and the light-emitting diode conforms to a morphology of the micro lens, and wherein the first electrode includes a first region and a second region, the first region comprises an electrode layer, and the second region includes the electrode layer and an electrode pattern disposed under the electrode layer.