US 2022/0020833 A1 · DISPLAY DEVICE

Abstract

A display device includes a display area and a peripheral area surrounding the display area, a thin film transistor in the display area, a first insulating layer, the first insulating layer covering the thin film transistor, a signal line on the first insulating layer, the signal line being coupled to the thin film transistor, a second insulating layer on the first insulating layer, the second insulating layer covering the signal line, a power supply line in the peripheral area, the power supply line configured to supply power to a pixel circuit including the thin film transistor, and a first dam including a multilayer structure on the power supply line and overlapping at least a part of the power supply line, in which multilayer structure including a lowermost layer including the same material as the second insulating layer, and the lowermost layer is above the power supply line.

Claims22

Dependent claims

A display device comprising:

a substrate comprising a display area and a peripheral area surrounding the display area;
a thin film transistor in the display area of the substrate;
a first insulating layer on the substrate, the first insulating layer covering the thin film transistor;
a signal line on the first insulating layer, the signal line being coupled to the thin film transistor;
a second insulating layer on the first insulating layer, the second insulating layer covering the signal line;
a power supply line in the peripheral area of the substrate, the power supply line configured to supply power to a pixel circuit comprising the thin film transistor;
and
a first dam comprising a multilayer structure on the power supply line, the first dam overlapping at least a part of the power supply line,
wherein the multilayer structure comprising a lowermost layer comprising a same material as the second insulating layer, and the lowermost layer is above the power supply line.

6 more elements

A display device comprising:

a substrate comprising a display area and a peripheral area surrounding the display area;
a thin film transistor in the display area of the substrate;
a first insulating layer on the substrate, the first insulating layer covering the thin film transistor;
a signal line on the first insulating layer, the signal line being coupled to the thin film transistor;
a second insulating layer on the first insulating layer, the second insulating layer covering the signal line;
a power supply line in the peripheral area of the substrate, the power supply line configured to supply power to a pixel circuit comprising the thin film transistor;
and
a first dam comprising a plurality of layers on the power supply line, the first dam overlapping at least a part of the power supply line,
wherein at least one of the plurality of layers comprises a step, and the first dam comprises a step based on the at least one step of the plurality of layers.

6 more elements

Dependencies are inferred from the claim text.

Display device

Life of this patent

Display device

Life of this patent

Abstract

Claims22