Light emitting device and display apparatus including same

The invention provides a light emitting device and a display apparatus including the same. In some embodiments, a light emitting device includes a first light emitting element configured to emit light of a first wavelength, a PN junction layer provided on the first light emitting element, and a second light emitting element provided on the PN junction layer and configured to emit light of a second wavelength different from the first wavelength. The PN junction layer includes a first conductivity type semiconductor layer provided on the first light emitting element and doped with an impurity of a first conductivity type, and a second conductivity type semiconductor layer provided on the first conductivity type semiconductor layer and doped with an impurity of a second conductivity type electrically opposite to the first conductivity type. 本公开提供了发光器件和包括该发光器件的显示装置。在一些实施方式中，一种发光器件包括配置为发射第一波长的光的第一发光元件、提供在第一发光元件上的PN结层、以及提供在PN结层上并配置为发射不同于第一波长的第二波长的光的第二发光元件。PN结层包括提供在第一发光元件上并掺有第一导电类型的杂质的第一导电类型半导体层、以及提供在第一导电类型半导体层上并掺有与