Spaced stripe-shaped flexible substrate and preparation method thereof

The invention belongs to the field of flexible OLED design, and particularly relates to a spaced stripe-shaped flexible substrate and a preparation method thereof. The preparation method comprises the following steps: preparing a PI mixed solution, uniformly smearing the PI mixed solution on a substrate, carrying out laser irradiation on the PI mixed solution on the dried substrate, adjusting the path of a laser beam to enable PI to form spaced stripes, and obtaining the spaced stripe-shaped flexible substrate. The stripe-shaped substrate structure can control stress displacement distribution in the stretching process, deformation displacement is distributed in a wire connecting area in a concentrated mode to relieve deformation borne by the display device, the invention further provides manufacturing of a thin film transistor (TFT) on the spaced stripe-shaped flexible substrate, and the display device can be manufactured on the basis of the obtained TFT. By measuring the offset of the threshold voltage befor