The invention provides a comprehensive functional membrane, a manufacturing method thereof, and an
OLED display panel with the comprehensive functional membrane. The comprehensive functional membrane comprises a linear
polarizer, a 1 / 4 wave plate and a touch membrane module with the obstructing function, wherein the linear
polarizer comprises a
linear polarization functional sheet layer and a hardening protecting layer arranged on the surface of one side of the
linear polarization functional sheet layer, and the hardening strength of the hardening protecting layer is higher than the
hardness 5H of a pencil; the 1 / 4 wave plate is arranged on the surface, far away from the hardening protecting layer, of the
linear polarization functional sheet layer; the touch membrane module with the obstructing function is arranged on the surface, far away from the linear polarization functional sheet layer, of the 1 / 4 wave plate in a
contact mode. The hardening strength of the hardening protecting layer of the linear
polarizer is higher than the
hardness 5H of a pencil, and therefore the hardening protecting layer can serve as a protective cap, a
glass cover in the prior art is omitted, the thickness of the
OLED display panel is reduced, and flexible packaging is achieved through the linear polarizer. The water-
oxygen obstructing function, the
touch function and the polarizing function are integrated, and therefore an adhering layer is omitted, the thickness of a packaging structure is reduced, the technological process is simplified, and the yield of finished products is guaranteed.