Patent ID: 8462099

Claim:
A display panel comprising: an active matrix type pixel region including scanning signal lines each of which is connected to three terminal elements each of which serves as an active element, the active matrix type pixel region having a non-rectangular shape by being configured such that the respective scanning signal lines are connected with various numbers of the three terminal elements according to where the scanning signal lines are located, and a shift register which drives the scanning signal lines, the shift register being formed in a region on a panel substrate, the region being adjacent to the pixel region in a direction in which the scanning signal lines extend, wherein the shift register includes that plurality of the stages which have an arrangement such that an output impedance in at least one of a transient state from a non-conductive period to a conductive period of the three terminal elements and a transient state from the conductive period to the non-conductive period of the three terminal elements is set in accordance with the number of the three terminal elements connected to that one of the scanning signal lines to which the stage corresponds.