Patent ID: 11877475
Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 2:
3. The display panel as claimed in claim 2, wherein the thin film transistor array substrate further comprises:
a substrate;
a first buffer layer, wherein the second active layer covers a portion of the first buffer layer;
a first gate insulation layer, wherein the first gate insulation layer covers the second active layer and the first buffer layer;
a light-shielding layer, wherein the light-shielding layer and the second gate electrode are arranged on a same layer;
a second buffer layer, wherein the second buffer layer covers the light-shielding layer, the second gate electrode, and the first gate insulation layer, and the first active layer is arranged on the second buffer layer;
a second gate insulation layer, wherein the second gate insulation layer covers a portion of the first active layer, and the first gate electrode is arranged on the second gate insulation layer;
an interlayer dielectric layer, wherein the interlayer dielectric layer covers the second buffer layer, the first active layer, and the first gate electrode;
a metal layer, wherein the metal layer comprises a first connecting line, a first through hole, a second through hole, and a third through hole, the first connecting line is arranged on the interlayer dielectric layer, a first end of the first connecting line is electrically connected to the first drain electrode via the first through hole, the second through hole passes through the interlayer dielectric layer, a second end of the first connecting line is electrically connected to the second gate electrode via the second through hole, and the second drain electrode is electrically connected to the anode via the third through hole; and
a passivation layer, wherein the passivation layer covers the interlayer dielectric layer.