laser TV thermal cooling applications

     With the growth of people's demand for personal cinema and real image quality, laser projection TV, known as "the fourth generation TV", will have a very considerable prospect in the high-end TV market. Compared with LCD TV, it has the advantages of health and environmental protection, large screen size and outstanding performance in projection and personalized display.

     When the DLP laser TV with laser light source works, its laser and power supply will produce a lot of heat. The accumulation of heat will cause thermal degradation of the laser TV, seriously reduce the imaging quality of the projected image, and reduce the service life of the laser. At present, most laser TVs on the market emphasize brightness. Once the brightness is improved, more heat will be generated naturally. In addition, the cladding design of laser core components and the small internal space of the body, so the thermal design is one of the key factors in the design of laser TV system.

     At present, the thermal cooling mode of laser TV mainly uses metal (aluminum or copper) as the heat sink, so it is necessary to use thermal conductive interface materials to conduct heat. Materials with good softness and high thermal conductivity, such as Laird HD90000 thermal PAD and Laird Tputty607 heat conducting gel for small clearance assembly and Tgrease2500 thermal conductive silicone grease, are good heat transfer from heating element to heat sink to reduce contact thermal resistance.