Patent ID: 8975815
Filing Date: 2015-03-10
Classification: H01L

Abstract:
1. A method for fabricating an electronic display device comprising a substrate coated on at least one of its sides with a display, such as a microdisplay, which comprises an active zone formed from a matrix of pixels and an electrical connection zone, the display being fastened by means of an adhesive which is crosslinkable by electromagnetic radiation, with a protective sheet which is permeable to this radiation and has a face for assembly with the display, this method comprising the following steps: a) the adhesive is applied in the uncrosslinked state substantially over the entire surface of the display and/or of the assembly face of the protective sheet, after deposition on the connection zone of at least one organic layer for protecting this connection zone from the adhesive; b) this assembly face is applied against the display via this adhesive; c) said radiation is emitted through the protective sheet in order to crosslink the adhesive; and then d) a portion of the protective sheet covering the connection zone is removed for the purpose of making said zone electrically accessible, the protective layer being pulled off the connection zone by this removal or else removed by a subsequent surface treatment step, characterized in that said protective layer is based on at least one organic compound chosen from the group consisting of diamine-derived compounds and heterocyclic organometallic complexes.