Backplate assembly, backlight module and display device

A backlight module comprising:

• a light source;
• a bottom reflective sheet;
• an optical film;
• and
• a backplate assembly,
• wherein the light source, the bottom reflective sheet and the optical film are assembled together through the backplate assembly;
• wherein the backplate assembly comprises a backplate and a reinforcing assembly, the reinforcing assembly comprises a peripheral reinforcing member connected to a peripheral portion of the backplate, and the peripheral reinforcing member is provided with a wiring channel in an inner surface of the peripheral reinforcing member;
• wherein the light source is disposed on the backplate of the backplate assembly, the bottom reflective sheet is disposed at a side of the light source opposite to the backplate, the optical film is disposed on an upper side of the bottom reflective sheet opposite to the light source, and a liquid crystal screen is disposed at a side of the optical film opposite to the bottom reflective sheet;
• wherein the bottom reflective sheet comprises a bottom portion and a plurality of inclined sidewalls extending from the bottom portion in a direction away from the backplate;
• and
• wherein a space communicated with the wiring channel is formed by the sidewalls of the bottom reflective sheet, the peripheral reinforcing member and the backplate, and a terminal of the light source is located within the space.