公开(公告)号：US10431773B2

公开(公告)日：2019-10-01

申请号：US15669641

申请日：2017-08-04

Applicant: LG Display Co., Ltd.

Inventor： Eun Ah Song ,  Hyun Tae Byun ,  Jung Gi Kim ,  Kwang Nam Cho

IPC: H01L51/52 ,  H01L27/32

Abstract: Provided is an organic light emitting display device. The organic light emitting display device includes a substrate, an organic light emitting element on the substrate, a first encapsulation layer on the substrate and the organic light emitting element to seal the organic light emitting element, a second encapsulation layer on the first encapsulation layer, a particle cover layer on the second encapsulation layer corresponding to at least an organic light emitting element area, and a third encapsulation layer on the second encapsulation layer and the particle cover layer. The first encapsulation layer and the second encapsulation layer are different from each other in surface energy. When the particle cover layer is coated, the second encapsulation layer may have a higher spreadability. Thus, it is possible to improve scan mura or defect.

公开(公告)号：US09203051B2

公开(公告)日：2015-12-01

申请号：US14535471

申请日：2014-11-07

Applicant: LG Display Co., Ltd.

Inventor： Hyun Tae Byun ,  Eun Ah Song ,  Hee Chul Lim

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

CPC classification number: H01L51/5253 ,  H01L27/323 ,  H01L51/5256 ,  H01L51/5262 ,  H01L51/5281 ,  H01L2251/5338

Abstract: Disclosed is an organic light emitting display (OLED) apparatus that includes a substrate; an organic light emitting element on the substrate, the organic light emitting element including a first electrode, an organic light emitting layer and a second electrode; a viscoelastic layer on the organic light emitting element, wherein an elastic portion of the viscoelastic layer is about 30% or more, the elastic portion being defined by : Elastic portion (Ep) (%)=(σ/σ0)×100, wherein σ0 is an initial stress generated when a strain of about 50% is applied to the viscoelastic layer and σ is a final stress measured after the strain is continuously applied thereto for about 180 seconds, with the initial stress σ0 and the final stress σ being measured at about 80° C. through a relaxation modulus test.

Abstract translation: 公开了一种包括基板的有机发光显示（OLED）装置; 有机发光元件，所述有机发光元件包括第一电极，有机发光层和第二电极; 有机发光元件上的粘弹性层，其中粘弹性层的弹性部分为约30％以上，弹性部分由<等式1>定义：弹性部分（Ep）（％）=（＆sgr; /＆sgr ; 0）×100，其中＆sgr0是当向粘弹性层施加约50％的应变时产生的初始应力， 是在将应变连续施加到其上180秒后测量的最终应力，其中初始应力＆0和最终应力σ 通过松弛模量试验在约80℃下测量。