Active-matrix substrate, method of manufacturing active-matrix substrate, and display panel

A method of manufacturing an active-matrix substrate, comprising:

• a forming step of forming a first active-matrix substrate including the steps of
• producing a plurality of gate lines having substantially the same length and spaced apart at a regular interval,
• producing a plurality of source lines having substantially the same length and spaced apart at a regular interval to cross the gate lines, and
• producing a gate line driving circuit in a display region including the gate lines and the source lines to provide a selection signal to switch its associated gate line to a selected or non-selected state;
• and
• a removal step to produce a second active-matrix substrate by removing a portion of the first active-matrix substrate such that at least one of the plurality of gate lines in the first active-matrix substrate has a length smaller than the maximum value of a width of the display region measured in a direction in which the gate lines extend.

An active-matrix substrate comprising:

• a display region including a gate line group including a plurality of gate lines and a source line group including a plurality of source lines arranged in a matrix, and pixel electrodes connected with the gate lines and the source lines;
• a first terminal provided in a portion of a picture-frame region outside the display region that is adjacent a side thereof to supply a data signal to the source line group;
• a second terminal provided adjacent the same side as the first terminal to supply a control signal;
• and
• a gate line driving circuit provided for each gate line to provide a selection signal to switch the gate line to a selected or non-selected state in response to the control signal, the gate line driving circuit being located inside the display region, wherein
• at least one gate line of the gate line group has a length smaller than the maximum value of a width of the display region as measured in a first direction in which the gate lines extend.