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1. (WO2015043056) ENCAPSULATION STRUCTURE FOR OLED DEVICE

Pub. No.:    WO/2015/043056    International Application No.:    PCT/CN2013/088272
Publication Date: Fri Apr 03 01:59:59 CEST 2015 International Filing Date: Tue Dec 03 00:59:59 CET 2013
IPC: H01L 51/52
Applicants: BOE TECHNOLOGY GROUP CO., LTD.
京东方科技集团股份有限公司
Inventors: ZHANG, Yuxin
张玉欣
Title: ENCAPSULATION STRUCTURE FOR OLED DEVICE
Abstract:
An encapsulation structure for an OLED device (1), comprising an upper substrate (3) and a lower substrate (2) which are arranged oppositely, an OLED device (1) and a glass retaining wall (4) which seals the peripheries of the upper substrate (3) and the lower substrate (2), wherein the two opposite surfaces of the upper substrate (3) and the lower substrate (2) are abutted to each other; the lower substrate (2) is provided with a concave part (21) having an opening facing the upper substrate (3); the OLED device (1) is located in the concave part (21); the upper substrate (3) is provided with a first annular groove (31) having an opening facing the lower substrate (2); the lower substrate (2) is provided with a second annular groove (41) which is opposite to the first annular groove (31) and has an opening facing the upper substrate (3); and the upper part of the glass retaining wall (4) is limited in the first annular groove (31), and the lower part of the glass retaining wall (4) is limited in the second annular groove (41). The encapsulation structure has high encapsulation stability, and the service life of the OLED device (1) is longer.