Patent 9508784 was granted and assigned to Japan Display on November, 2016 by the United States Patent and Trademark Office.
An organic EL display device includes an inorganic insulating film including a contact part as an opening where a contact electrode made of a conductive film is exposed, a TFT circuit layer provided on the inorganic insulating film and including a circuit including a thin film transistor, an organic EL element layer provided on the TFT circuit layer and including an organic EL element whose light emission is controlled by the circuit, and a sealing layer covering the organic EL element layer and made of an inorganic insulating material.