Patent ID: 7148427

Claim:
A display device, comprising: a first substrate; a second substrate disposed opposite the first substrate; a liquid crystal layer interposed between the first and second substrates; an effective display area including a plurality of pixels arranged in a matrix; a plurality of metal wirings arranged on the first substrate; and a guard wiring formed on the first subtrate fabricated of an electrically conductive metal oxide having a higher resistance than a material of the metal wirings and arranged between at least a pair of mutually adjacent metal wirings of the plurality of metal wirings, the guard wiring covering and contacting at least a portion of one of the pair of adjacent metal wirings; wherein the guard wiring is applied with a voltage that is the same as a voltage that is applied to the one of the pair of adjacent metal wirings and different than a voltage that is applied to the other of the pair of adjacent metal wirings.