BACKLIGHT MODULE AND MANUFACTURING METHOD THEREFOR, DISPLAY APPARATUS, AND ELECTRONIC DEVICE

A backlight module, a display apparatus, an electronic device, and a backlight module manufacturing method. The backlight module (1) comprises a circuit board (11), light sources (12), packages (13), auxiliary members (14) and a reflection member (15). The light sources (12) are fixed on a mounting surface (111) of the circuit board (11) and electrically connected to the circuit board (11); the auxiliary members (14) surround the light sources (12) and are fixed to the mounting surface (111), and gaps are formed between the auxiliary members (14) and the light sources (12); the packages (13) are filled in the gaps and cover the light sources (12); the light sources (12), the packages (13), and the auxiliary members (14) constitute light emitting units (10); the reflection member (15) comprises through holes (151), the reflection member (15) is fixed to the mounting surface (111), and the light emitting units (10) are located in the through holes (151) to achieve a backlight module that the package area of a l