Pioneer Corporation

Tohoku Pioneer Corporation

Pioneer Oled Lighting Devices Corporation

Koji Fujita

Shinji Nakajima

Yuji Saito

Shinsuke Tanaka

Miho Sugimoto

A light emitting apparatus () includes a substrate (), an insulating layer (), a light emitting element (), a coating film (), and a structure (). The insulating layer () is formed over one surface of the substrate (), and includes an opening (). The light emitting element () is formed in the opening (). The coating film () is formed over the one surface of the substrate (), and covers a portion of the light emitting element (), the insulating layer (), and the one surface of the substrate (). The coating film () does not cover another portion of the substrate () (for example, a portion of an end portion: hereinafter, referred to as a first portion). The structure () is located between the first portion of the substrate () and the insulating layer (). The coating film () also covers the insulating layer ().

Light emitting apparatus

A light shielding layer () is located between a plurality of light-emitting regions () when seen in a direction perpendicular to a substrate (). The light shielding layer () includes a light reflection layer () and a light absorbing layer (). The light absorbing layer () is located closer to the substrate () side in a thickness direction than the light reflection layer (), and has a light reflectance lower than that of the light reflection layer (). Further, when seen in the direction perpendicular to the substrate (), an end of the light reflection layer () is located further inside of the light shielding layer () than an end of the light absorbing layer ().

Light-emitting device

An organic EL element () is formed on a substrate (), and an insulating layer () surrounds the organic EL element (). A conductive layer () is located between the substrate () and the insulating layer () in a thickness direction, and is across an edge () of the insulating layer () opposite the organic EL element (). The conductive layer () includes a first layer () and a second layer (). The second layer () is formed on the first layer (). The conductive layer () does not include a portion of the second layer () in a portion overlapped with the edge () of the insulating layer ().

A light emitting device () includes a substrate (), an organic EL element (), a buffer film (), and a sealing film (). The organic EL element () is formed over the substrate (). The sealing film () is located over the substrate () and over the organic EL element (), and seals the organic EL element (). In addition, the buffer film () is located between the organic EL element () and the sealing film (), and comes into close contact with the sealing film (). The sealing film () includes at least one layer formed of, for example, an oxide.

Growing community of inventors

Yonezawa, Japan

Koji Fujita