Abstract: The present application relates to a split-screen display device for a laptop computer. The first screen and the second screen are provided on the left and right sides of the middle plate member, respectively; and the middle plate member forms a hinge connection with the first screen on one side by a first biaxial hinge assembly, and the middle plate member forms a hinge connection with the second screen on the other side by a second biaxial hinge assembly, wherein when the split-screen display device is in a completely folded state, the first screen is folded on a front face of the middle plate member and the second screen is folded on a back face of the first screen. When completely folded, both the first screen and the second screen have their display faces covered and protected, thus reducing the risk that the display faces are damaged.