Patent ID: 11961848
Assignee: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A display substrate, comprising:
a substrate base; and
an active layer, a gate insulating layer, a first metal film layer, an interlayer insulating layer, a second metal film layer, and a passivation layer stacked successively on the substrate base, wherein the first metal film layer comprises a pattern of a gate and of a gate line; the second metal film layer comprises a pattern of a source/drain and of a data line; and
an oxide metal layer;
wherein an opposite region is defined by the gate line opposite to the data line, the oxide metal layer is on a surface of the opposite region facing the data line, and the gate line and the data line are arranged partially opposite to each other;
wherein the opposite region comprises: an overlap region formed by the gate line and the data line, and two symmetrical first regions beyond the overlap region along an extending direction of the gate line;
wherein the width of each of the first regions in the extending direction of the gate line is 2 μm to 3 μm;
wherein the first metal film layer comprises a first molybdenum metal layer, a copper metal layer, an aluminum metal layer and a second molybdenum metal layer successively stacked on a side of the gate insulating layer away from the substrate base; the opposite region comprises the first molybdenum metal layer, the copper metal layer and part of the aluminum metal layer; and the oxide metal layer is an aluminum oxide formed after the aluminum metal layer is oxidized;
wherein a thickness of the first molybdenum metal layer ranges from 0.03 μm to 0.04 μm, a thickness of the copper metal layer ranges from 0.4 μm to 0.5 μm, a thickness of the aluminum metal layer ranges from 0.06 μm to 0.08 μm, and a thickness of the second molybdenum metal layer is 0.05 μm.