A display device and a method for forming the same are provided. The display device includes a backlight module, a display panel, an optical film, and a cladding layer arranged in a stack-up manner. The cladding layer is configured to fix the backlight module and the display panel. The cladding layer includes a first portion and a second portion. The first portion is at a light-emitting side of the display panel, at least a part of the first portion is located between the display panel and the optical film, and the second portion is a lateral surface of the backlight module.