The invention discloses a backlight module and a light-emitting
diode (LED) display. The backlight module comprises a
light source module with a luminous surface and a back panel, a reflecting piece and a
light guide plate which are sequentially stacked, wherein one end of the
light guide plate bends and extends to the back panel direction to form a bending part of which the outer surface is not transparent; an end face at the
tail end of the bending part is a light entrance surface; and the
light source module is fixed on the edge of the back panel, and the luminous surface of the
light source module is opposite to the light entrance surface. According to the backlight module, because the light source module is positioned on the outer side of the back panel, the generated heat is directly dispersed outwards and is not collected inside the back panel; and therefore, the radiating efficiency is improved, and all problems caused by bad
radiation of the backlight module in the traditional technology are solved; and meanwhile, the light source emitted from the light source module does not directly enter the side face of the
light guide plate and enters the light entrance surface of the bending part, after the light is reflected and fully mixed inside the bending part, and the light source enters the backlight module; and therefore, the dark space inside the backlight module is eliminated, and the backlight effect is improved.