Patent ID: 9595675
Date: 2017-03-14
CPC Classifications: H01L

Claim:
1. A light-emitting element, comprising: a first electrode; a second electrode; a first layer provided between the first electrode and the second electrode; a second layer provided in contact with the first layer between the first layer and the second electrode; a reference surface of the first electrode that faces the first layer; a first surface of the first layer that is in contact with the second layer, the first surface being formed having a part in which a distance between the first surface and the reference surface changes in a continuous or step-wise manner; and a second surface of the second layer disposed on an opposite side of the second layer from the first layer, the second surface being formed so as to have a same shape as the first surface, wherein in a first region covering at least 90% of the second layer in a width direction of the second layer, a difference between the distance between the first surface and the reference surface and a distance between the second surface and the reference surface is within a range of ±10% with respect to an average value of the difference within the first region.