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1. (WO2017152743) LIGHT-EMITTING DEVICE AND MANUFACTURING METHOD THEREFOR

Pub. No.:    WO/2017/152743    International Application No.:    PCT/CN2017/073943
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Sat Feb 18 00:59:59 CET 2017
IPC: H01L 51/56
H01L 51/52
Applicants: NAJING TECHNOLOGY CORPORATION LIMITED
纳晶科技股份有限公司
Inventors: ZHEN, Changgua
甄常刮
PENG, Junjun
彭军军
Title: LIGHT-EMITTING DEVICE AND MANUFACTURING METHOD THEREFOR
Abstract:
Provided are a light-emitting device and a manufacturing method therefor. The method comprises the following steps: a pixel isolation structure (20) is formed on a substrate (10), wherein the pixel isolation structure has a plurality of pixel regions isolated from each other, and an exposed surface of the pixel isolation structure is a hydrophilic surface or a hydrophobic surface; and a light extraction solution is arranged on the substrate corresponding to the pixel regions so as to form a light extraction layer (30), wherein the light extraction solution comprises a base material, scattered particles and a solvent, and when the exposed surface of the pixel isolation structure is a hydrophilic surface, the light extraction solution is a hydrophobic solution, and when the exposed surface of the pixel isolation structure is a hydrophobic surface, the light extraction solution is a hydrophilic solution. In the step of forming the light extraction layer, the light extraction solution does not remain on the upper surface or lateral walls of the pixel isolation structure, but instead flows back to the pixel regions under the action of gravity, so that colour mixing between adjacent pixel regions is effectively prevented, and the light-emitting efficiency of the light-emitting device is improved.