Patent ID: 9553115
Date: 2017-01-24
CPC Classifications: H01L

Claim:
1. A manufacturing method of a thin-film transistor (TFT) substrate structure, comprising the following steps: (1) providing a base plate and depositing a buffer layer on the base plate and depositing a first metal layer on the buffer layer and subjecting the first metal layer to patterning to form a gate terminal; (2) depositing a gate insulation layer on the buffer layer and the gate terminal and depositing an oxide semiconductor on the gate insulation layer and subjecting the oxide semiconductor to patterning to form an island-like semiconductor layer; (3) depositing a second metal layer on the gate insulation layer and the island-like semiconductor layer and subjecting the second metal layer to patterning to form a source terminal and a drain terminal; (4) depositing a first passivation layer on the gate insulation layer, the island-like semiconductor layer, the source terminal, and the drain terminal; (5) forming a planarization layer on the first passivation layer; (6) depositing a first transparent conductive film on the planarization layer and subjecting the first transparent conductive film to patterning to form a first pixel electrode; (7) sequentially forming a first via and a second via in the first passivation layer and the planarization layer to be located above and correspond to the drain terminal, wherein the first via and the second via expose a portion of the drain terminal; (8) depositing a second passivation layer on the first pixel electrode and the planarization layer and subjecting the second passivation layer to patterning to form a third via in the second passivation layer to correspond to the first via and the second via; and (9) depositing a second transparent conductive film on the second passivation layer and subjecting the second transparent conductive film to patterning to form a second pixel electrode, wherein the second pixel electrode is connected, through the first, second, and third vias to the drain terminal.