| With the arrival of the era of experience economy, people are increasingly focusing on their personal experiences when using a product or service. The traditional way of product exhibition, which regularly features physical display, often performs badly in terms of user experience due to many inevitable factors limiting the access of product information. On the other hand, the virtual-reality technology, combined with the exhibition design, provides a brand-new form of expression of the product display. With the 3-dimension virtual display technology, the user can observe the product from all angle of vision, obtain the useful information about the product, and even interact with the product in real time. The good interactivity and immersion can bring a lot of fun to the user when operating the system.This paper carries out an study, from the perspective of the user’s experience, of the subjective and objective factors affecting the user experience in the virtual display system, and puts forward a solution for the virtual display system design based on a better user experience. By analyzing the demands of the target user groups, as well as their typical behavior of mental activity, some user mental models were built and demonstrated from the perspective of cognitive psychology to guide the design process. In the design phase, the method of prototype testing was used to identify the problems and conduct the iterative design process. Through analyzing the key factors affecting the user experience in the virtual display system, the analytic hierarchy process(AHP) and fuzzy comprehensive evaluation method were used to evaluate the user experience of the developed virtual display system for the hardware products, proving the design is reasonable. Furthermore, to address some typical problems during the system development, such as slow loading virtual exhibition scene and model switching flickers, dual-level details of gradual optimization algorithms and models-textures handover optimization algorithm were applied to optimize the loading speed and scene display. Experimental test data show that after using the optimization algorithms, scene loading speed increased by 3.2 times, and the scenario FPS increased by 2.5 times, which proved the rationality of the algorithms.The innovations of this paper include the following:First, By deconstructing the user experience and factors affecting the user experience, some user mental models, from the perspective of cognitive psychology, were built to guide the design process.Second, considering that the user experience of the virtual display system for hardware products is often rather subjective and can not be simply quantified, the fuzzy comprehensive evaluation method was applied to assess the user experience of the virtual display system, verifying the rationality of our design.Third, the dual-level details of gradual optimization algorithms and models-textures handover optimization algorithm were adopted to optimize the loading speed and scene display, and the rationality and effectiveness of the algorithms was verified with experimental test data. |