Display device comprising a plurality of upper-layer lines with exposed upper surfaces which are not covered, a plurality of lower-layer lines, and a plurality of adjustment layers

摘要

A display device at which the contact-type wiring inspection can be accurately carried out is provided. In a display device in which two or more kinds of lines are arranged on a substrate by way of an interlayer insulation film, in at least a partial region of the substrate outside a display region, a plurality of upper-layer lines which are arranged parallel to each other on an upper side of the interlayer insulation film, lower-layer lines which are arranged on a lower side of the interlayer insulation film and between the upper-layer lines or adjacent to the upper-layer lines, and adjustment layers for adjusting a height which are arranged on a lower side of the interlayer insulation film and below the upper-layer lines so as to position surfaces of the upper-layer lines at a highest position on the substrate are formed.

主权项

1. A display device comprising:
a substrate; an interlayer insulation film on the substrate; a plurality of upper-layer lines which are arranged parallel to each other on an exposed top surface of the interlayer insulation film so that the plurality of upper-layer lines have exposed upper surfaces which are not covered; a plurality of lower-layer lines which are arranged on a bottom surface of the interlayer insulation film and between or adjacent to the plurality of upper-layer lines, the bottom surface of the interlayer insulation film being an opposite surface of the interlayer insulation film with respect to the exposed top surface of the interlayer insulation film; and a plurality of adjustment layers for adjusting a height of the plurality of upper-layer lines; wherein the plurality of adjustment layers are arranged on the bottom surface of the interlayer insulation film, below the plurality of upper-layer lines so as to raise an entirety of the exposed upper surfaces of the plurality of upper-layer lines to a highest position on the substrate as compared with all upper surfaces of the plurality of lower-layer lines, any portion of the exposed top surface of the interlayer insulation film and all upper surfaces of the plurality of adjustment layers; wherein the plurality of upper-layer lines, the plurality of lower-layer lines and the plurality of adjustment layers are in a partial region of the substrate outside a display region of the substrate.