The display panel and manufacturing method thereof, a display device

The present invention provides a method for manufacturing a display panel and a display device, the display panel manufacturing method comprising: forming a glass region of a first subbing layer on the package substrate; OLED device is formed on the display area of ​​the first substrate ; the first and second substrates bonded to alignment, and the seal structure is formed between the first substrate and the second substrate using a laser irradiation area of ​​the package. A substrate manufacturing method of the present invention provides a display panel, the OLED device is formed by the glass used in making adhesive layer, so that the organic light emitting layer to avoid offset coated glass subbing layer and subsequent deposition in the packaging process phenomenon, thereby improving productivity of the entire packaging process.