DISPLAY DEVICE, AND METHOD FOR PRODUCING ARRAY SUBSTRATE FOR DISPLAY DEVICE

摘要

Disclosed is a display device provided with: a plurality of stripe-shaped data electrodes (3) which are formed on a first substrate (1) and which extend in the vertical direction; a plurality of scanning lines (11) and a plurality of reference signal lines (12) which are formed on the second substrate (2) and which extend in the horizontal direction; a plurality of pixel electrodes (10) which are formed on the second substrate (2) and which are arranged in the form of a matrix; a plurality of switching elements (T1) which are formed on the second substrate (2), turns on or off by means of the plurality of scanning lines (11), and is disposed between the plurality of reference signal lines (12) and the plurality of pixel electrodes (10); and an oxide semiconductor layer (22) which is disposed between a source electrode (21) and a drain electrode (20). The oxide semiconductor layer (22) is formed with the switching elements (T1) with an insulating layer (23) therebetween in the vicinity of a gate electrode (11a), and is provided with the pixel electrodes (10) which are connected to the source electrode (21) or the drain electrode (20). The source electrode (21) or the drain electrode (20) that is connected to the pixel electrode (10) is formed from the same material as the pixel electrode (10). The source electrode (21) and the drain electrode (20) are formed from a film which was formed at the same time.