Liquid crystal composite all-in-one machine

The invention discloses a liquid crystal composite all-in-one machine, relates to the technical field of computers, and mainly aims to solve the problems that a screen of a traditional all-in-one machine is inconvenient to adjust, and an operation panel is separated and is inconvenient to carry. The liquid crystal composite all-in-one machine comprises a host body, a display screen, an operation panel and a rack for fixedly mounting the host body, the rack comprises a base and supporting vertical rods arranged at the two ends of the base. One end face of the host body is provided with a display screen, and the edge of the display screen is provided with a clamping frame body. A fastening screw rod spirally matched with each supporting vertical rod is arranged in the middle of the supporting vertical rod, a clamping plate is fixed to the end, close to the main machine body, of each fastening screw rod, the operation disc is installed on a connecting guide rod, the bottom of the operation disc is in clamped sli