1. A composite liquid crystal panel, comprising: at least two liquid crystal display panels having respectively a border for bonding together with each other to form the composite liquid crystal panel, the border corresponding to display pixels having no light sources; and a picture display surface located above the composite liquid crystal panel to provide picture light, each of the display pixels on the liquid crystal panels corresponding to the border having at least one reflecting surface located thereabove, normal display pixels adjoining the border having at least one mirror surface located thereabove equipped with penetrative and reflective functions; wherein the mirror surface equipped with the penetrative and reflective functions allows a portion of light coming from the normal pixels to pass through and to reach the picture display surface and another portion of light to be reflected to the reflecting surface which further reflects the light to the picture display surface.