Abstract: A display device frame includes a main frame body and at least a waterproof block. The main frame body is made of aluminum and has an outer frame face, an inner frame face opposing the outer frame face, at least an outer fin and at least an inner fin. The at least an outer fin is integrally coupled to the outer frame face of the main frame body. The at least an inner fin is integrally coupled to the inner frame face of the main frame body. At least a corner of the main frame body is joined by welding. The at least a waterproof block is disposed at the upper or lower edge of the welding-joined corner of the main frame body. The display device frame prevents rainwater from permeating through the junction of a display unit border, reinforces the display unit border, and enhances heat dissipation thereof.