COOLING SYSTEM OF A DISPLAY

摘要

Display devices suffer gradual deterioration due to heating effects. This heating is due to the light sources of the backlight, the driver electronics or the sun in the case of outdoor displays. Conventional cooling schemes for displays involving a fan and air-filter are costly to maintain and repair as well as being thick and aesthetically unattractive. In the present display device, a cooling plate (100) having a refrigerant inside is provided at the rear of the backlight (49). Cooling is achieved by phase changes occurring in the refrigerant: evaporation (thus absorbing heat) inside the cooling plate nearest to the heat source, diffusion to a cooler location followed by recondensation (thus releasing heat) inside the cooling plate furthest away from the display panel. Inside the cooling plate, further plates having a mesh stucture (120) and a wick-like structure (130) are arranged to facilitate the circulation of the refrigerant.