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:
Dec. 21, 2021
Filed:
May. 09, 2018
Sakai Display Products Corporation, Sakai, JP;
Katsuhiko Kishimoto, Sakai, JP;
Kohichi Tanaka, Sakai, JP;
SAKAI DISPLAY PRODUCTS CORPORATION, Sakai, JP;
Abstract
According to a flexible light-emitting device production method of the present disclosure, after an intermediate region () and a flexible substrate region () of a plastic film () of a multilayer stack () are divided, the interface between the flexible substrate region () and a glass base () is irradiated with lift-off light. The multilayer stack () is separated into the first portion () and the second portion () while the multilayer stack () is kept in contact with the stage (). The first portion () includes a plurality of light-emitting devices () which are in contact with the stage (). The light-emitting devices () include a plurality of functional layer regions () and the flexible substrate region (). The second portion () includes the glass base () and the intermediate region (). The step of irradiating with the lift-off light includes forming the lift-off light from a plurality of arrayed light sources such that the irradiation intensity of the lift-off light for at least part of the interface between the intermediate region () and the glass base () is lower than the irradiation intensity of the lift-off light for the interface between the flexible substrate region () and the glass base ().