Patent ID: 7982694
Filing Date: 2011-07-19
Classification: G09G

Abstract:
1. A display apparatus having a display panel comprising: a substrate whose distance between both peripheral edge portions in a column direction is shorter than a distance between both peripheral edge portions in a row direction; a plurality of display pixels provided on the substrate in the row direction and the column direction; a plurality of power supply lines provided on the substrate in the column direction; a plurality of power source lines provided on the substrate in the row direction, wherein each of the plurality of power source lines is connected to at least two of the plurality of power supply lines at nodes, and connected to at least two of the plurality of display pixels provided in the row direction; an insulation film provided between the plurality of power supply lines and the plurality of power source lines, the insulation film having contact holes, wherein the nodes are positioned in the contact holes; a first power source drive circuit which applies a first supply voltage to first ends of the plurality of power supply lines; and a second power source drive circuit which applies a second supply voltage which has a same voltage as the first supply voltage to second ends of the plurality of power supply lines concurrently with the application of the first supply voltage; wherein the first ends and the second ends of the power supply lines are led to both of the peripheral edge portions of the substrate; wherein a sum of a first distance and a second distance is smaller than half of a length in the row direction of the substrate; wherein the first distance is a distance between one of the plurality of display pixels and a closest one node electrically connected thereto, the closest one node being closest to the one of the plurality of display pixels in the row direction of the substrate, of all the nodes electrically connected to the one of the plurality of display pixels; and wherein the second distance is a distance between the closest one node and one of first and second ends of a power supply line connected to the closest one node, wherein the power supply line is one of the plurality of power supply lines, and said one of the first and second ends of the power supply line is closer to the closest one node than the other of the first and second ends of the power supply line.