FLEXIBLE SUBSTRATE OF OLED DISPLAY PANEL AND METHOD FOR PREPARING SAME

A method for preparing a flexible substrate of an OLED display panel, comprising: step S10, providing a glass substrate; step S20, preparing a first polyimide layer on the surface of the glass substrate; and step S30, preparing a buffer layer on the surface of the first polyimide layer. Step S30 comprises: step S301, preparing a silicon oxide layer on the surface of the first polyimide layer; and step S302, performing titanium ion implantation on the silicon oxide layer by using an ion implantation technology to form a mixed layer of titanium dioxide and silicon oxide.