公开(公告)号：US20180254429A1

公开(公告)日：2018-09-06

申请号：US15971798

申请日：2018-05-04

Applicant: LG DISPLAY CO., LTD.

Inventor： KangJu LEE ,  Sookang KIM ,  Wonhoe KOO ,  Hyunsoo LIM ,  Mingeun CHOI ,  Yonghoon CHOI

IPC: H01L51/52 ,  H01L51/50 ,  H01L51/00 ,  H01L27/32

CPC classification number: H01L51/5212 ,  H01L27/3246 ,  H01L27/3279 ,  H01L27/3288 ,  H01L51/0014 ,  H01L51/5008 ,  H01L51/5032 ,  H01L2227/323

Abstract: An organic light-emitting display device includes a substrate defining an emission area and a non-emission area; an insulating layer on the substrate and having at least two grooves being defined at a portion of the insulating layer corresponding to the non-emission area; a first electrode on the insulating layer at a portion of the insulating layer corresponding to the emission area; an auxiliary electrode on the insulating layer and spaced apart from the first electrode, the auxiliary electrode being on at least a portion of the insulating layer having the at least two grooves; a bank pattern on portions of the first and auxiliary electrodes; a barrier on the auxiliary electrode and separated from the bank pattern, the barrier being formed of a same material as the bank pattern; an organic light-emitting layer on the first electrode; and a second electrode on the organic light-emitting layer.

公开(公告)号：US20180006273A1

公开(公告)日：2018-01-04

申请号：US15639299

申请日：2017-06-30

Applicant: LG DISPLAY CO., LTD.

Inventor： Sookang KIM ,  KangJu LEE ,  Wonhoe KOO ,  Hyunsoo LIM ,  Mingeun CHOI

IPC: H01L51/52 ,  H01L27/32

CPC classification number: H01L51/5275 ,  H01L27/3218 ,  H01L27/3248 ,  H01L27/3258 ,  H01L27/326 ,  H01L27/3262 ,  H01L51/5209 ,  H01L51/5268

Abstract: An organic light-emitting display device including a substrate including a display area and a non-display area; a thin film transistor disposed on the substrate in the non-display area; an electroluminescent device disposed in the display area; and an overcoat layer disposed on the substrate and including two or more concave portions and two or more convex portions in the display area. Further, the two or more concave portions and the two or more convex portions form a linear pattern in a plan view. In addition, the electroluminescent device includes a first electrode disposed on the overcoat layer and connecting the electroluminescent device to the thin film transistor; an organic light-emitting layer disposed on the first electrode and configured to emit light; and a second electrode disposed on the organic light-emitting layer. Also, the linear pattern of the two or more concave portions and the two or more convex portions comprise one of a zigzag pattern, a streamlined pattern, and combinations thereof.

公开(公告)号：US20170125738A1

公开(公告)日：2017-05-04

申请号：US15337517

申请日：2016-10-28

Applicant: LG DISPLAY CO., LTD.

Inventor： Jintae KIM ,  Sookang KIM ,  Soyoung JO ,  Wonhoe KOO ,  Jihyang JANG ,  Hyunsoo LIM ,  Mingeun CHOI

IPC: H01L51/52 ,  H01L27/32

CPC classification number: H01L51/5268 ,  H01L27/3246 ,  H01L51/5209 ,  H01L51/5225 ,  H01L51/5271 ,  H01L51/5275

Abstract: Disclosed is an organic light emitting diode display device. The disclosed organic light emitting diode display device includes an overcoat layer disposed on a substrate that is divided into an emissive area and a non-emissive area, and has multiple micro lenses in the emissive area and at least one depression in the non-emissive area. The organic light emitting diode display device further includes: a first electrode disposed on the overcoat layer, wherein the first electrode is disposed in the entire emissive area and in a part of the non-emissive area; a bank pattern disposed in the non-emissive area so as to be superposed on the depression; an organic light emitting layer disposed on the substrate; and a second electrode disposed on the organic light emitting layer. Accordingly, the organic light emitting diode display device may prevent light leakage.

公开(公告)号：US20150380466A1

公开(公告)日：2015-12-31

申请号：US14753262

申请日：2015-06-29

Applicant: LG Display Co., Ltd.

Inventor： Wonhoe KOO ,  BongChul KIM ,  KangJu LEE ,  Sookang KIM ,  Jihyang JANG ,  Hyunsoo LIM

IPC: H01L27/32 ,  H01L51/00 ,  H01L51/52 ,  H01L51/56

CPC classification number: H01L27/322 ,  H01L27/3258 ,  H01L51/5209 ,  H01L51/5225 ,  H01L51/5275 ,  H01L51/5281

Abstract: Provided are an organic light emitting display device and a method for manufacturing the same. A color filter is disposed on a substrate. An overcoating layer is disposed on the color filter and includes a plurality of protrusions or a plurality of recesses. The plurality of protrusions and the plurality of recesses are disposed on the color filter to be overlapped with the color filter. A buffer layer for reducing step difference is disposed on the overcoating layer. The buffer layer has a higher refractive index than the overcoating layer and reduces a step difference caused by the plurality of protrusions and the plurality of recesses. An organic light emitting element including an anode, an organic light emitting layer, and a cathode is disposed on the buffer layer. Since the buffer layer has a higher refractive index than the overcoating layer, light extraction efficiency can be increased.

Abstract translation: 提供一种有机发光显示装置及其制造方法。 滤色器设置在基板上。 外涂层设置在滤色器上，并且包括多个突起或多个凹部。 多个突起和多个凹部设置在滤色器上以与滤色器重叠。 用于减少台阶差的缓冲层设置在外涂层上。 缓冲层具有比外涂层更高的折射率，并减少由多个突起和多个凹部引起的台阶差。 包括阳极，有机发光层和阴极的有机发光元件设置在缓冲层上。 由于缓冲层具有比外涂层更高的折射率，因此可以提高光提取效率。