High-precision overlapping machine for optical film of display backlight module

The invention relates to a display backlight module optical film high-precision overlapping machine which comprises a guide conveying platform, a feeding assembly line, a first diffusion laminating mechanism, an adhesive tape laminating mechanism, a brightness enhancement laminating mechanism, a second diffusion laminating mechanism and a discharging assembly line are sequentially arranged on the guide conveying platform, and guide conveying mechanisms are arranged between every two adjacent mechanisms and located on the guide conveying platform. A first diffusion film mounting mechanism, an adhesive tape mounting mechanism, a bright enhancement film mounting mechanism and a second diffusion film mounting mechanism are sequentially arranged on one side of the guiding platform, the first diffusion film mounting mechanism is arranged on one side of the first diffusion laminating mechanism, and the adhesive tape mounting mechanism is arranged on one side of the adhesive tape laminating mechanism; the bright enha