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：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：US20190181188A1

公开(公告)日：2019-06-13

申请号：US16210358

申请日：2018-12-05

Applicant: LG Display Co., Ltd.

Inventor： Woo-Ram YOUN ,  Ji-Hyang JANG

IPC: H01L27/32 ,  H01L51/52

Abstract: An organic light emitting diode display (OLED) is disclosed. The disclosed OLED includes a substrate including a plurality of sub-pixels, each sub-pixel comprising a display area and a non-display area surrounding the display area, the display area comprising a first display area at a center region of the display area and a second display area surrounding the first display area; a first electrode formed in the display area; an organic light emitting layer formed on the first electrode and extending to the non-display area; a third electrode formed on a portion of the organic light emitting layer in the first display area; and a second electrode formed on the third electrode and the organic light emitting layer, wherein the first and third electrodes are able to achieve a micro cavity effect.

公开(公告)号：US20190006557A1

公开(公告)日：2019-01-03

申请号：US16023930

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: H01L33/20 ,  H01L33/50 ,  H01L27/12 ,  H01L33/58

CPC classification number: H01L33/20 ,  H01L27/1248 ,  H01L27/322 ,  H01L27/3258 ,  H01L33/505 ,  H01L33/58 ,  H01L51/5209

Abstract: A light emitting display device includes: a light emitting element that includes a light emitting layer between a first electrode and a second electrode; a wavelength conversion layer overlapping the light emitting element; and an uneven layer that includes a plurality of furrows between the light emitting element and the wavelength conversion layer, wherein a shortest distance between a bottom surface of the plurality of furrows and the wavelength conversion layer is 0.1 um or greater.

公开(公告)号：US20180151842A1

公开(公告)日：2018-05-31

申请号：US15822417

申请日：2017-11-27

Applicant: LG Display Co., Ltd.

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

IPC: H01L51/52 ,  H01L27/32

CPC classification number: H01L51/5275 ,  H01L27/3211 ,  H01L27/3213 ,  H01L27/3216 ,  H01L27/322 ,  H01L27/3258 ,  H01L27/3276 ,  H01L51/5209 ,  H01L51/5225 ,  H01L51/5228 ,  H01L51/525 ,  H01L51/5253 ,  H01L51/5284 ,  H01L2251/5315

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：US20180122874A1

公开(公告)日：2018-05-03

申请号：US15797802

申请日：2017-10-30

Applicant: LG DISPLAY CO., LTD.

Inventor： Young-Wook KIM ,  Hyun-Jong NOH ,  Seong-Han HWANG ,  Chi-Myung AHN ,  Won-Hoe KOO ,  Ji-Hyang JANG

IPC: H01L27/32 ,  H01L51/52

Abstract: Disclosed is an organic light-emitting display device having a micro lens array (MLA) structure applied to a display panel in order to improve light extraction efficiency. In the organic light-emitting display device, an optical device, including a reactive mesogen (RM) and a dye, is provided between a polarizer and a quarter wave plate (QWP) to block light spreading to a viewing angle, thereby reducing a diffuse reflection component due to the application of the MLA structure.