公开(公告)号：US10134993B2

公开(公告)日：2018-11-20

申请号：US13929296

申请日：2013-06-27

Applicant: LG DISPLAY CO., LTD.

Inventor： Yeon Keun Lee ,  Jae Min Moon ,  Joon Koo Kang ,  Mun Kyu Joo ,  Kyoung Sik Moon ,  Seong Su Jang

IPC: H01L51/00 ,  G02B5/02 ,  H01L51/52

Abstract: Provided is a substrate for an organic light emitting diode including a base substrate, a high refractive scattering layer formed on the base substrate, and having a scattering particle scattering light in a high refractive material, and an adhesive layer formed between the base substrate and the high refractive scattering layer to laminate the base substrate with the high refractive scattering layer, wherein the high refractive scattering layer has a structure in which the scattering particle is immersed in the high refractive material, an average thickness of the high refractive scattering layer is smaller than an average diameter of the scattering particle, a surface of the high refractive scattering layer laminated with the base substrate by the adhesive layer has unevenness formed by the scattering particle, the opposite surface of the high refractive scattering layer laminated with the base substrate by the adhesive layer has a planarized surface, and a method for manufacturing the same. The substrate may have an excellent degree of planarization and improved light extraction efficiency without degradation in performance of the diode, and low process and material costs and mass-production of the substrate may be easily achieved.

公开(公告)号：US09905764B2

公开(公告)日：2018-02-27

申请号：US13928161

申请日：2013-06-26

Applicant: LG DISPLAY CO., LTD.

Inventor： Yeon Keun Lee ,  Jae Min Moon ,  Joon Koo Kang ,  Mun Kyu Joo ,  Kyoung Sik Moon ,  Seong Su Jang

IPC: H01L51/00 ,  G02B5/00 ,  H01L51/52 ,  G02B5/02

CPC classification number: H01L51/0024 ,  G02B5/0242 ,  G02B5/0278 ,  H01L51/0096 ,  H01L51/5268 ,  H01L51/5275 ,  Y02E10/549

Abstract: Provided is a substrate for an organic light emitting diode including a base substrate, a high refractive scattering layer formed on the base substrate, and having a scattering particle scattering light in a high refractive material, and an adhesive layer formed between the base substrate and the high refractive scattering layer to laminate the base substrate with the high refractive scattering layer, wherein the high refractive scattering layer has a structure in which the scattering particle is immersed in the high refractive material, an average thickness of the high refractive scattering layer is smaller than an average diameter of the scattering particle, a surface of the high refractive scattering layer laminated with the base substrate by the adhesive layer has unevenness formed by the scattering particle, the opposite surface of the high refractive scattering layer laminated with the base substrate by the adhesive layer has a planarized surface, and a method for manufacturing the same. The substrate may have an excellent degree of planarization and improved light extraction efficiency without degradation in performance of the diode, and low process and material costs and mass-production of the substrate may be easily achieved.