Roumei (Hong Kong) Technology Co., Ltd. is a high-tech start-up company based on a new type of nanomaterial downconverter based on luminescent semiconductor quantum rods. Our goal is to double the efficiency of LED products for display and general lighting applications. Modern monitors are inefficient and consume a lot of energy at the same time. For example, Hong Kong consumed more than 158,000 terajoules of electricity in 2020, of which 300-600 joules of energy was consumed through visual displays, which is equivalent to 550-1100 kilotons of carbon dioxide emissions, and this is only from visual displays and does not include Other supporting electronic components. Decarbonization is a major global agenda. A few places, including the European Union, China, and Hong Kong, are already revising regulations for lighting products, including displays. In the chief executive's annual address, decarbonisation was one of the main agendas of the Hong Kong government. Electricity production accounts for two-thirds of the city's greenhouse gas emissions. Utilities such as CLP and Hong Kong Power will need to stop using coal to generate electricity by 2035. The Hong Kong government aims to reduce carbon emissions by 50% by 3035. However, the Chief Executive also mentioned in a 2021 policy report that "it is not impossible" and further said that commercial buildings need to reduce usage by 30 to 40 percent and residential buildings by 20 to 30 percent . To achieve this milestone, we had to consider all factors and reduce the power consumption of the display. The European Union has the same concern, and has revised the power consumption standards for display and lighting products. 

     Roumei has a monopoly on designing new materials called quantum rods (QRs). The unique properties of these nanomaterials include higher thermal stability, high quantum efficiency in the solid state, tunable wavelengths (color) in the full visible range, bidirectional coupling efficiency, polarized emission, and low reabsorption. Therefore, these down-converting quantum rods can improve the efficiency and color saturation of modern LEDs for displays and general lighting products.