Patent ID: 11957000
Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
Field: nan (nan)
Classification: CPC H | IPC H

Claim 16:
17. A method of preparing an organic light emitting diode (OLED) display panel, comprising steps of:
providing a base substrate;
sequentially forming an array layer and a planarization layer on the base substrate;
forming a conductive layer on the planarization layer and patterning the conductive layer to form anodes;
preparing an organic photoresist with light-shading properties on the anodes to form an organic photoresist layer, and patterning the organic photoresist layer to form a pixel definition layer located between the anodes adjacent to each other;
using a plasma to fluorinate a surface of the pixel definition layer to form a hydrophobic layer on the surface of the pixel definition layer; and
sequentially forming a luminescent layer, a cathode, and an encapsulation layer on the anodes;
wherein the step of forming the hydrophobic layer further comprises a step of: performing a fluorination treatment on the surface of the pixel definition layer by feeding at least two of fluorine-containing gases including nitrogen trifluoride, carbon tetrafluoride, and sulfur hexafluoride to form the hydrophobic layer.