Patent ID: 8823257
Filing Date: 2014-09-02
Classification: H01L

Abstract:
1. A light-emitting device comprising: a substrate which has a plurality of light-emitting elements which are provided above the plane portion of the substrate in a light-emitting region, each of plurality of the light-emitting elements having: a cathode terminal which is electrically coupled between the cathode and a power source applying the voltage, the cathode terminal being provided in a connecting region outside the light-emitting region, a functional layer which extends from the light-emitting region to the connecting region, the functional layer being provided between the cathode and the cathode terminal in the connecting region and between the light-emitting layer and the cathode in the light-emitting region, the functional layer adjusting an amount of electrons; and an auxiliary cathode that is electrically coupled between the cathode and the cathode terminal and is not overlapped with the light-emitting elements, the auxiliary cathode having a third portion which is positioned in the connecting region, the third portion overlapping the cathode and the cathode terminal when viewed from a vertical direction to the plane portion of the substrate, an average thickness of the functional layer being 0.2 nm to 10 nm.