The present invention relates to a screen rolling device, which includes a winding roller, an inner shaft, at least one metal strip roll and a screen. By means of the disclosure, a high-quality audio transmission effect can be ensured. The desktop display mode renders the data file using data file-specified dimensions and resolutions. The memory is addressed with a direct address that selects one or more of the addressable locations in the addressed page of memory. , from far ultraviolet to visible to far infrared. Upon actuation of an application, the soft labels can change to represent various actions or functions available in the application.