Electroluminescence element and its manufacture

Abstract

Abstract PURPOSE:To offer an EL element having uniform light emitting surface and excellent pattern accuracy by providing a non-light emission element part equipped with an inter-layer insulating film formed through pattern processing between a lower electrode and its mating electrode. CONSTITUTION:A lower electrode 2 is formed on a base board 1 by means of evaporation process, and thereover an inter-layer insulating film 3 is formed which has undergone patterning so that the EL element formation part becomes an opening 9. To secure a lower electrode takeout position 11, an evaporation mask 6 is put on the lower electrode except the opening and its surrounding, and an organic multi-layer part 4 incl. a light emission layer is formed by means of evaporation. While the evaporation mask 6 is left in place, a mating electrode 5 is evaporated fast on this organic multi-layer part 4 incl. light emission layer. Thereby an EL element is accomplished, which is equipped with a light emission element part 10 having good pattern accuracy.

Inventors

• 👤 Chishio Hosokawa
• 👤 地潮 細川
• 👤 Tadashi Kusumoto
• 👤 正 楠本

Bibliographic Details