Patent ID: 8686422
Filing Date: 2014-04-01
Classification: G02F,G09G,H01L

Abstract:
1. An active matrix substrate comprising: an insulating substrate; TFT elements formed on the insulating substrate; a display region where pixel electrodes electrically connected to the TFT elements respectively are arranged in a matrix; and a peripheral region where a driving circuit for driving the TFT elements is disposed, the peripheral region representing a periphery of the display region and including a plurality of branch wirings electrically connected to the driving circuit and a stem wiring to which one of the branch wirings is electrically connected, each of the TFT elements including a plurality of electrode layers, the branch wirings and the stem wiring being formed of the same layers as the plurality of electrode layers, the branch wirings being formed of an electrode layer arranged lower than an electrode layer forming the stem wiring, of the plurality of electrode layers that the each TFT element includes, an insulating layer being disposed between the stem wiring and the branch wirings, the stem wiring intersecting with another of the branch wirings, in the intersection, the stem wiring having a line width that is broader than that of the branch wiring, in a region where the stem wiring is electrically connected to the one of the branch wirings, the stem wiring overlapping with the one of the branch wirings, when seen in a plan view, a contact hole being formed in the insulating layer so as to uncover the one of the branch wirings, and the stem wiring and the one of the branch wirings being electrically connected with each other via a connecting conductor formed in the contact hole.