US Patent 10403692 Display device

An electroluminescent device includes a lower structure including an emission area and a peripheral area, a flexible encapsulating multilayer, and a touch panel including a touch electrode. The emission area includes an electroluminescent unit including a lower electrode disposed directly on an insulating film, an intermediate film, and an upper electrode disposed on the intermediate film. The peripheral area includes an inorganic surface portion substantially surrounding the emission area, various terminals, and wires. A lower surface of the flexible encapsulating multilayer and an upper surface of the inorganic surface portion each include only one or more inorganic materials in direct contact with each other.