Patent ID: 11957004
Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. A fabrication method of an organic light emitting diode (OLED) display panel, comprising following steps:
providing a substrate;
sequentially fabricating a transparent conductive layer and a buffer layer on a side of the substrate, wherein the transparent conductive layer is patterned to form a conductive electrode and a first electrode plate of a transparent capacitor;
fabricating a metal oxide semiconductor layer on a side of the buffer layer away from the transparent conductive layer, wherein the metal oxide semiconductor layer is patterned to form an active layer of a thin film transistor and a second electrode plate of the transparent capacitor;
sequentially fabricating a gate insulating layer, a gate layer, and an interlayer insulating layer on a side of the active layer away from the buffer layer, wherein the gate layer is patterned to form a gate of the thin film transistor;
forming a source-drain layer on a side of the interlayer insulating layer away from the gate layer, wherein the source-drain layer is patterned to form a source and a drain of the thin film transistor, and the drain is connected to a drain region of the active layer, and the source is connected to a source region of the active layer and the conductive electrode; and
forming an OLED device layer on the source-drain layer, and a light emitting direction of the OLED device layer faces the substrate.