申请人:Seiko Epson Corporation
公开号:EP3151299A1
公开(公告)日:2017-04-05
To provide a light-emitting element which emits light in a near-infrared region and has high efficiency and long life, and a light-emitting device, an authentication device, and an electronic apparatus, each of which includes this light-emitting element.
A light-emitting device 100 of the invention includes a light-emitting element 1A including an anode 3, a cathode 8, and a light-emitting layer 5 which is provided between the anode 3 and the cathode 8 and emits light in a near-infrared region by applying a current between the anode 3 and the cathode 8, wherein the device emits visible light with a luminance of 5 cd/m2 or more when a current is applied between the anode 3 and the cathode 8 at a current density of 300 A/cm2 or less.
本发明旨在提供一种在近红外区域发光且效率高、寿命长的发光元件,以及包括该发光元件的发光装置、认证装置和电子设备。
本发明的一种发光器件 100 包括一个发光元件 1A,其中包括阳极 3、阴极 8 和发光层 5,发光层 5 设置在阳极 3 和阴极 8 之间,通过在阳极 3 和阴极 8 之间施加电流而在近红外区域发光,其中,当在阳极 3 和阴极 8 之间施加电流,电流密度为 300 A/cm2 或更低时,该器件发出亮度为 5 cd/m2 或更高的可见光。