[EN] LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, AND LIGHTING DEVICE<br/>[FR] DISPOSITIF ÉLECTROLUMINESCENT, DISPOSITIF ÉLECTRONIQUE, ET DISPOSITIF D'ÉCLAIRAGE
申请人:SEMICONDUCTOR ENERGY LAB
公开号:WO2014054551A1
公开(公告)日:2014-04-10
Provided is a light-emitting element in which an adverse effect by halides in an EL layer is suppressed and which can be provided with low cost. The light-emitting element including at least two layers between an anode and a light-emitting layer. One of the two layers which is closer to the anode has higher concentration of halides and halogen elements than the other layer closer to the light-emitting layer.