OLEDs and other electronic devices using desiccants

摘要

Electronic devices that use desiccants for protection from moisture. The electronic devices comprise a substrate and an organic element disposed over the top surface of the substrate. The substrate has one or more voids which may store desiccants. The voids may penetrate partially or completely through the thickness of the substrate. An environmental barrier is disposed over the organic element and the voids. Also provided are methods for making electronic devices that use desiccants.

主权项

1. A method for making an electronic device, comprising:
(a) providing a substrate having a top surface on one side and a bottom surface on an opposite side, wherein the substrate has a thickness defined by the top surface and the bottom surface; (b) creating a plurality of openings in the substrate extending through the thickness of the substrate; (c) mounting an organic element directly on the top surface of the substrate; (d) disposing an environmental barrier over the organic element, whereby the environmental barrier conformally covers the organic element and wherein the environmental barrier is in contact with the substrate and seals over the openings in the substrate; (e) disposing a desiccant in the openings between steps (b) and (c), between steps (c) and (d), or after step (d); and (f) providing a cover over the openings on the bottom surface of the substrate, the cover defining an enclosed bottom chamber over the openings, the bottom chamber being in communication with the openings for accommodating additional quantity of the desiccant.