lex-note is a multi-purpose computer with a flexible screen. It can provide users with a 17-inch large-screen desktop model, or a 13-inch general laptop model, and is equipped with a Bluetooth detachable keyboard. The match with the machine meets the needs of users for keyboards in different modes. Flex-note uses a set of composite multi-joint linkage hinges. The hinges provide a screen avoidance area in closed mode, and provide support when open to flat mode. This hinge overcomes the curving screens on the market. When folded and closed, it forms a perfect seamless experience in appearance.