The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 12, 2021
Filed:
Jan. 21, 2020
Int Tech Co., Ltd., Hsinchu County, TW;
INT TECH CO., LTD., Hsinchu County, TW;
Abstract
A method of manufacturing an electroluminescent device includes the following steps. A substrate including a first sub-pixel region and a second sub-pixel region is provided. A first light-emitting layer is formed over the substrate through a shadow mask to cover the first sub-pixel region and at least a portion of the second sub-pixel region. A sacrificial layer is formed over the substrate, wherein the sacrificial layer includes an opening exposing a portion of the first light-emitting layer that is over the second sub-pixel region. The portion of the first light-emitting layer that is over the second sub-pixel region is removed. A second light-emitting layer is formed over the sacrificial layer and on the second sub-pixel region through the opening of the sacrificial layer. The sacrificial layer is removed simultaneously with a portion of the second light-emitting layer that is over the sacrificial layer.