Patent Number: 6,528,942

Title: Organic electroluminescence device, its manufacturing method and board for display device used therefor

Abstract: An organic electroluminescence (EL) device having an image pattern includes a substrate, a first electrode formed on the substrate, a light emitting layer formed on the first electrode and a second electrode which is formed on the light emitting layer and oxygen-transmittable. The light-emitting layer includes an oxide layer selectively formed by the selective photo-oxidation using light and oxygen reached through the second electrode. The oxide layer serves as a non-light-emitting region. In such a configuration, the reliable organic EL device with high contrast can be provided in a short time from its order to completion.

Inventors: Tada; Kazuya (Hyogo, JP), Onoda; Mitsuyoshi (Hyogo, JP)

Assignee: Rohm Co., Ltd.

International Classification: H01L 51/56 (20060101); H01L 51/52 (20060101); H01L 51/50 (20060101); H01L 51/05 (20060101); H01L 51/30 (20060101); H05B 033/00 ()

Expiration Date: 03/04/2020