Light-emitting device, light-emitting device module, and vehicle lighting unit

摘要

A light-emitting device module (20) can include a plurality of light-emitting devices (21) arranged in line so as to form a luminance distribution for preventing horizontal stripes from being generated in a light distribution pattern. The light-emitting device (21) can include a rectangular light-transmitting substrate (21a), an underlayer semiconductor layer (21b) formed on the rectangular light-transmitting substrate (21a), a plurality of first electrodes (21cx, 21cy) formed on the underlayer semiconductor layer (21b) in an island shape, a light-emitting semiconductor layer (21d) including a light-emitting layer formed on the underlayer semiconductor layer (21b), the light-emitting semiconductor layer (21d) configured to surround and separate the respective first electrodes (21cx, 21cy), and a second electrode (21g) formed on the light-emitting semiconductor layer (21d). The first electrodes (21cx, 21cy) can be arranged to form a plurality of electrode rows (R1, R2) parallel with one side of the rectangular light-transmitting substrate (21a).