Electroluminescence element

Abstract

Abstract PURPOSE:To extend the life of and prevent the lowering of luminance intensity of an element by preventing ions contained in a transparent first electrode and an insulation base from being diffused by disposing an ion barrier layer between the first electrode and a light emitting layer. CONSTITUTION:A transparent first electrode 2 is formed by sputtering on a glass substrate 1 over which is formed an ion barrier layer 6 followed by vacuum deposition of a light emitting layer 3 made of ZnS:Mn. An electricity conductive substance pulverized to particles of about 1mum is diffused into a nitrocellulose binder material and sprayed with a spray gun onto the substrate 1 to form a current restriction layer 4. A second electrode 5 and the current restriction layer 4 are then scribed with a diamond needle to make a display element. Thus, the life of the element is extended and the lowering of luminance intensity is prevented.

Inventors

• 👤 Toshitaka Shigeoka
• 👤 重岡　利孝
• 👤 Katsuhisa Enjoji
• 👤 勝久 円城寺
• 👤 Yuichi Aoki
• 👤 裕一 青木
• 👤 Shiro Kobayashi
• 👤 史朗 小林
• 👤 Koji Nakanishi
• 👤 功次 中西
• 👤 Etsuo Ogino
• 👤 悦男 荻野

Bibliographic Details