Liquid crystal display screen and regulation and control method thereof

The invention relates to the technical field of liquid crystal display, in particular to a liquid crystal display screen and a regulation and control method thereof. The invention provides a liquid crystal display screen. The liquid crystal display screen comprises a display screen assembly and a rotary supporting assembly. The display screen assembly comprises a center support and a plurality of splicing screens arranged on the center support in a sliding fit mode. The rotary supporting assembly comprises a transverse rotating shaft and a screen closing and splitting control unit connected to the transverse rotating shaft. And the screen combining and splitting control unit is movably connected with the plurality of spliced screens so as to drive the plurality of spliced screens to be synchronously butted towards the inner side to form a display screen or synchronously extend towards the outer side to form a plurality of display screens. A screen combining and splitting control unit is arranged in the displa