OLED panel and manufacturing method therefor

The invention discloses an OLED panel and a manufacturing method therefor. In the OLED panel, each included isolation column is etched into the isolation column with an inverted trapezoidal structured vertical section, so that when a hole inject layer material and a hole transporting layer material are evaporated in each pixel unit in the OLED panel in the subsequent process, hole inject layers (HIL) in adjacent pixel units can be mutually isolated by the isolation column with the inverted trapezoidal structured vertical section; meanwhile, hole transporting layers (HTL) in the adjacent pixel units also can be isolated; in this way, the HIL in the adjacent pixel units are isolated while the HTL in the adjacent pixel units are also isolated; therefore, when one pixel unit in the OLED panel is in light emitting, the holes of the pixel unit are not propagated to the adjacent pixel unit; and correspondingly, a phenomenon of slight light emission in the adjacent pixel unit is avoided, so that the display effect of