Patent ID: 8436358

Claim:
An image display device, including a plurality of thin film transistors on a substrate, comprising: a plurality of gate lines formed on the substrate; a plurality of drain lines intersecting the plurality of gate lines formed on the substrate, each of the plurality of thin film transistors being of a bottom gate type and having, in a region overlapped by a channel region, a laminate structure in which a gate electrode, a gate insulating film, and a semiconductor layer are laminated in the stated order from the substrate side; and a pair of removal regions in which parts of the gate insulating film are removed, which are formed on both sides of the gate electrode in a channel width direction of the channel region, wherein when W represents a width of the gate electrode in the channel width direction of the channel region, and R represents a width of the gate insulating film in the channel width direction, which is sandwiched between the pair of removal regions, R≦W is satisfied.