Driving circuit for light emitting element, exposure head, and image forming apparatus

摘要

Each data line includes base parts covering contact holes and line parts extending in an array direction of pixel circuits and connecting adjacent base parts to each other. The line parts have a smaller width in a direction perpendicular to the array direction than the base parts and are connected to the base parts while being offset in the direction perpendicular to the array direction from each other on both sides of at least two base parts that include first and second base parts. A connection position of the first base part with the line part on one side among both sides of the base units is located on the pixel circuit side with respect to the other side, and a connection position of the second base part on the one side is located on an opposite side to the pixel circuit side with respect to the other side.

主权项

1. A driving circuit for a light emitting element, the driving circuit comprising:
a plurality of pixel circuits aligned in line; a plurality of data lines which are arranged to extend in parallel to an array direction of the pixel circuits and not to overlap with a region of the aligned pixel circuits and which supply data signals to the pixel circuits; and a plurality of leading lines that are arranged on a layer different from the data lines and connected to the data lines via contact holes and to the pixel circuits, wherein each of the plurality of data lines includes a plurality of base parts that cover the contact holes and a plurality of line parts that extend in the array direction of the pixel circuits and connect adjacent base parts to each other, and the line parts have a smaller width in the direction perpendicular to the array direction of the pixel circuits than the base parts and are connected to the base parts while being offset in the same direction perpendicular to the array direction of the pixel circuits from each other on both sides of at least two base parts, and wherein the at least two base parts include a first base part and a second base part, a connection position of the first base part with the line part on one side among both sides of the base units being located on the pixel circuit side with respect to the other side, and a connection position of the second base part with the line part on the one side among the both sides of the base units being located on an opposite side to the pixel circuit side with respect to the other side.