Supports running multiple applications at the same time and display independently, such as playing video conferences with the home screen while recording meeting minutes with the sub-screen; or running Excel tables on the home screen, and synchronizing the PPT charts on the secondary screen Touch and stylus support The secondary screen of some dual-screen notebooks is a touch screen, and can be used with a stylus to note notes, hand-drawn sketches or quick operations (such as sliding switching tasks, zoom interfaces), suitable for designers, teachers or students.