The concept of dual-screen display is controlled by a host, and the effect of being able to connect two monitors at the same time and display different pictures is dual-screen display. The proposal of dual-screen display has promoted the development of dual-screen graphics cards, and dual-screen display can be widely used In various window service systems. Information publishing systems, etc.
Laptops have a VGA output port for external displays or projectors, which greatly increases the laptop’s ability to publish information and presentations. Especially worth mentioning is the dual-screen display (Dualview and Dualapplication, DualView) function of the notebook. DualView allows simultaneous display of different output contents on the LCD and an external display or projector. The two display devices can independently adjust the display refresh Rate, resolution and color depth, and can support different applications (DualApplication).
