Display device

Patent metadata

Field	Value
Publication number	US-12588340-B2
Application number	US-202318114240-A
Country	US
Kind code	B2
Filing date	Feb 25, 2023
Priority date	Mar 7, 2022
Publication date	Mar 24, 2026
Grant date	Mar 24, 2026

Abstract

A display device includes: a substrate including a display area, a first non-display area, a second non-display area, and a bending area and extending in a second direction, a first inorganic film disposed in the display area, the first non-display area, the second non-display area and a portion of the bending area on the substrate, a second inorganic film disposed on the first inorganic film and overlapping the display area, the first non-display area, and the second non-display area in a plan view, a first power line disposed on the second inorganic film and overlapping the first non-display area in a plan view, and a first dummy line extending from the first power line, disposed on the first inorganic film in the bending area, covering a first side surface of the second inorganic film in the first non-display area, and extending in the second direction.

First claim

What is claimed is:

1 . A display device comprising:
a substrate including a display area, a first non-display area adjacent to the display area, a second non-display area spaced apart from the first non-display area in a first direction, and a bending area disposed between the first non-display area and the second non-display area and extending in a second direction crossing the first direction; a first inorganic film disposed in the display area, the first non-display area, the second non-display area and a portion of the bending area on the substrate; a second inorganic film disposed on the first inorganic film and overlapping the display area, the first non-display area, and the second non-display area in a plan view; a first power line disposed on the second inorganic film and overlapping the first non-display area in the plan view; a first dummy line extending from the first power line, disposed on the first inorganic film in the bending area, covering a first side surface of the second inorganic film in the first non-display area, and extending in the second direction; and a third power line disposed on the second inorganic film, overlapping the second non-display area, disposed on the same layer as the first power line, and spaced apart from the first power line in the first direction in the plan view.

2 . The display device of claim 1 , wherein the first dummy line is monolithic with the first power line.

3 . The display device of claim 1 , wherein the first dummy line extends along the bending area in the second direction, and
a length of the first dummy line in the second direction is the same as a length of the bending area in the second direction.

4 . The display device of claim 1 , wherein the second inorganic film exposes the first inorganic film in the bending area, and
the first inorganic film exposes the substrate in the bending area.

5 . The display device of claim 4 , wherein a length of a portion of the first dummy line overlapping the bending area in the first direction is less than a length of a portion of the first inorganic film overlapping the bending area in the first direction.

6 . The display device of claim 1 , further comprising:
a second power line disposed in the first non-display area on the second inorganic film and spaced apart from the first power line in the plan view.

7 . The display device of claim 6 , wherein the second power line is disposed in a same layer as the first power line, and
the second power line is spaced apart from the first dummy line in the plan view.

8 . The display device of claim 7 , wherein the second power line overlaps the first dummy line in the first direction.

9 . The display device of claim 1 , further comprising:
an organic film disposed on the first power line and overlapping the display area, the first non-display area, the second non-display area, and the bending area.

10 . The display device of claim 9 , wherein the organic film covers the first dummy line, the first inorganic film and the second inorganic film.

11 . The display device of claim 1 , further comprising:
a second dummy line extending from the third power line, disposed on the first inorganic film in the bending area, covering a second side surface of the second inorganic film spaced apart from the first side surface in the second non-display area, and extending in the second direction.

12 . The display device of claim 11 , wherein the second dummy line is spaced apart from the first dummy line in the first direction.

13 . The display device of claim 12 , wherein the second dummy line extends along the bending area in the second direction, and
a length of the second dummy line in the second direction is the same as a length of the first dummy line in the second direction.

14 . A display device comprising:
a substrate including a display area, a first non-display area adjacent to the display area, a second non-display area spaced apart from the first non-display area in a first direction, and a bending area disposed between the first non-display area and the second non-display area and extending in a second direction crossing the first direction; a first inorganic film disposed in the display area, the first non-display area, the second non-display area, and a portion of the bending area on the substrate and defining a first opening extending in the second direction in the bending area; a second inorganic film in the display area, the first non-display area, and the second non-display area on the first inorganic film and defining a second opening extending in the second direction in the bending area; a first power line disposed in the first non-display area on the second inorganic film; a first dummy line extending from the first power line, disposed on the first inorganic film in the bending area, covering a first side surface of the second opening in the first non-display area, and extending in the second direction; and a third power line disposed on the second inorganic film, overlapping the second non-display area, disposed on the same layer as the first power line, and spaced apart from the first power line in the first direction in the plan view.

15 . The display device of claim 14 , wherein the first opening and the second opening overlap each other in the bending area in a plan view.

16 . The display device of claim 14 , wherein the first dummy line is spaced apart from the first opening.

17 . The display device of claim 14 , further comprising:
a second power line disposed in a same layer as the first power line and spaced apart from the first power line; and a second dummy line extending from the third power line, disposed on the first inorganic film in the bending area, covering a second side surface of the second opening in the second non-display area, and extending in the second direction.

18 . The display device of claim 17 , wherein the second dummy line is spaced apart from the first opening,
the second dummy line is spaced apart from the first dummy line, and the first opening is interposed between the first dummy line and the second dummy line.

19 . The display device of claim 14 , further comprising:
an organic film disposed on the first power line and overlapping the display area, the first non-display area, the second non-display area, and the bending area, and wherein the organic film is disposed in the first opening and the second opening and contacts the substrate in the bending area.

Assignees

• Samsung Display Co Ltd

Inventors

• Choi Yoonsun
• Cho Seung-Hwan
• Lee Jiseon
• Choi Wonsuk

Classifications

• H10K59/122

  Pixel-defining structures or layers, e.g. banks · CPC title

• H10K59/805

  Electrodes · CPC title

• H10K2102/311

  Flexible OLED · CPC title

• G06F1/1641

  the display being formed by a plurality of foldable display components (G06F1/1647 takes precedence) · CPC title

• G09F9/301

  flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED · CPC title