The invention provides an
OLED display panel and a manufacturing method thereof. According to the manufacturing method of the
OLED display panel, a light-shielding film is arranged on a packaging cover plate, and the
laser can be prevented from irradiating electrodes on an
OLED substrate in the
laser scanning process of a frame
adhesive. In this way, electrodes are effectively protected. Meanwhile, the part of the light-shielding film, overlapped with the film region of the frame
adhesive, has a gradually-reduced light
transmittance, so that the film region of the frame
adhesive can be prevented from being burnt by the excessive
laser energy. The packaging effect is fully guaranteed, and the generation of particulate matters is reduced. In addition, the surface of the light-shielding film,irradiated by the laser, is set to be a frosted surface, so that the laser irradiated on the light-shielding film can generate the
diffuse reflection. As a result, the laser is prevented from being directly reflected to a laser head, so that the laser head is protected from being damaged by burns. The OLED display panel is prepared by adopting the above manufacturing method of the OLED display panel, so that the OLED display panel is good in packaging effect and high in production yield.