DRIVE CIRCUIT OF LIGHT-EMITTING ELEMENT, EXPOSURE HEAD, AND IMAGE FORMATION APPARATUS

PROBLEM TO BE SOLVED: To provide a drive circuit of a light-emitting element including a plurality of data lines occupying reduced areas.SOLUTION: Each of a plurality of data lines 3 has a plurality of base parts 33 covering a contact hole 34, and a plurality of wiring parts 35 extending in an arrangement direction of a pixel circuit 2 and connecting the neighbouring base parts 33. The wiring parts 35 have a smaller width than the base part 33 in a direction perpendicular to the arrangement direction of the pixel circuit 2, and are connected to the base parts 33 on opposite sided of at least two base parts 33 while being mutually offset in a direction perpendicular to the arrangement direction of the pixel circuit 2. The at least two base parts 33 includes: a first base part 33a in which a connection position of the base part 33 and the wiring part 35 is positioned closer to the pixel circuit 2 on one of the opposite sides of the base part 33 than on the other thereof; and a second base part 33b in which the connection position of the base part 33 and the wiring part 35 is positioned opposite to the pixel circuit 2 on the one of the opposite sides of the base part 33 than on the other thereof. 【課題】複数のデータ線の占有する面積を小さくした発光素子の駆動回路を提供する。【解決手段】複数のデータ線３の各々は、コンタクトホール３４を覆う複数の土台部３３と、画素回路２の配列方向に延伸し、隣接する土台部３３を接続する複数の配線部３５とを有し、配線部３５は、土台部３３よりも画素回路２の配列方向と垂直な方向の幅が小さく、少なくとも二つの土台部３３の両側で、互いに画素回路２の配列方向と垂直な方向にオフセットして土台部３３に接続されており、少なくとも二つの土台部３３は、土台部３３と配線部３５との接続位置が、土台部３３の両側のうちの一方において他方よりも画素回路２側に位置する第一の土台部３３ａと、土台部３３と配線部３５との接続位置が、土台部３３の両側のうちの前記一方において前記他方よりも画素回路２側と反対側に位置する第二の土台部３３ｂとを含む。【選択図】図２