The present invention provides a tri-gate type display panel. The image forming apparatus includes several pixel units, a scan line, a data line, and a fan-out area. Some pixel units include three sub-pixel units for displaying different colors, and a thin film transistor is provided on each sub-pixel unit. Connected to the charging electrode. The scan lines are arranged in order along the first direction of the display panel, thereby being connected to the grid electrodes of the respective thin film transistors on the sub-pixel unit. The data line is installed along the second direction of the display panel, thereby being connected to the drain electrode of the thin film transistor installed on the sub-pixel unit. The fan-out area includes a plurality of fan outlines, the output terminals of the fan outlines and the arrangement of the scan lines are the same, and are connected to two intersections of the scan lines. [Selection] Figure 4
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