LIGHT-EMITTING APPARATUS, DISPLAY MODULE, AND ELECTRONIC DEVICE

A light-emitting apparatus (120), a display module (100), and an electronic device. The present invention can improve the display effect of the display module (100). The light-emitting apparatus (120) comprises a first electrode (121), second electrodes (122), a plurality of sub-light-emitting apparatuses (123), and color conversion materials (124), the first electrode (121) is arranged opposite to the second electrodes (122), and the plurality of sub-light-emitting apparatuses (123) are arranged between the first electrode (121) and the second electrodes (122). Each sub-light-emitting apparatus (123) comprises a first semiconductor layer (1231), a first light confinement layer (1232), a first light waveguide layer (1233), an active layer (1234), a second waveguide layer (1235), a second light confinement layer (1236), and a second semiconductor layer (1237) that are stacked in sequence. The refractive index n1 of the active layer (1234), the refractive index n2 of the first waveguide layer (1233), and the re