Substrate and manufacturing method thereof, and liquid crystal panel and manufacturing method thereof

The invention discloses a substrate and a manufacturing method thereof, and a liquid crystal panel and a manufacturing method thereof. The liquid crystal panel comprises a substrate, wherein the substrate comprises glass and an array pattern arranged on the glass; the inside of the glass of the substrate is crossly provided with a plurality of light guide channels which are used for enabling light rays to carry out total reflection in the light guide channels; the light guide channels correspond to the array pattern and are arranged within the range of the array pattern; the light guide channels in the substrate are respectively connected with a touch detection unit; and the touch detection unit is used for sensing the touch position according to the phase change of the returned light rays when the touch causes the deformation of the light guide channels. In the invention, the technique is simplified, and the precision and yield of the liquid crystal panel with touch control function are obviously raised.