Driving circuit of large display screen and display screen

The utility model discloses a driving circuit of a large display screen and the display screen. The driving circuit comprises a processing module and a driving module connected with the processing module. The system also comprises a video memory module which is connected with the driving module. The processing module is used for transmitting image data to be displayed to the video memory module through the driving module; and the driving module is used for refreshing the image data in the video memory module on a display screen. According to the driving circuit of the large display screen and the display screen provided by the utility model, the video memory module is expanded on the driving module, so that the problem that the video memory is not enough in capacity and is only suitable for a relatively small display screen in an MCU mode is solved. 本实用新型公开了一种大显示屏的驱动电路及显示屏，包括处理模块和与所述处理模块连接的驱动模块；还包括显存模块，所述显存模块连接于所述驱动模块；所述处理模块，用于将待显示的图像数据通过所述驱动模块传输至所述显存模块；所述驱动模块，用于将所述显存模块内的所述图像数据刷新在显示屏上。本实用新型的目的在于提供一种大显示屏的驱动电路及