Virtual Reality (VR) creates simulated immersive virtual environments that can be experienced by the user as if they were real. Virtual Reality also includes Augmented Reality (AR) where virtual elements are overlaid into the real world and Mixed Reality (MR) which is similar to AR but the virtual elements are anchored into the real world and are able to be interacted with. Virtual Reality systems have various uses and applications across a range of different domains, the VR industry is growing at a rapid rate across all sectors and is estimated to be worth over $22 billion globally by 2025.
Importance of Thermal Management for VR:
Thermal management is crucial for VR applications, as they involve high computational loads that can generate significant heat. Managing the temperature effectively is important to ensure the stability, performance, and longevity of Virtual Reality hardware, such as CPUs, GPUs and Servers.
VR applications have a wide range of use cases, each with their own specific thermal management requirements and associated Thermal Interface Materials (TIMs).
Heat Sinks, are devices that dissipate heat from the heat source to the surrounding air or liquid and are commonly found in VR headsets alongside Thermal Interface Materials. TIMs are applied between the heat source and Heat Sink to fill the microscopic voids between the two mating surfaces to improve heat transfer. There are many different types of TIMs that can be used for VR headsets, including Thermal Putty, Thermal Tape, Thermal Compounds and Thermal Pads. Each type of TIM has its own advantages and disadvantages, depending on the application requirements, these include thermal conductivity, thickness, mechanical strength, viscosity, curing time and cost.