CN-122003978-A - Display device

Abstract

A display device includes a substrate including an island portion, a first bridge portion extending from the island portion in a first direction, and a second bridge portion extending from the island portion in a second direction crossing the first direction, a first conductive layer disposed on the substrate and including a first voltage line extending from the island portion to the first bridge portion and the second bridge portion, a second conductive layer disposed on the first conductive layer and including a signal line extending from the island portion to the first bridge portion and a data line extending from the island portion to the second bridge portion, and a third conductive layer disposed on the second conductive layer and including a second voltage line and a third voltage line extending from the island portion to the first bridge portion and the second bridge portion.

Inventors

• Pu Xibao
• JIN HENGXI
• LI XIANHUA
• Tian Wujing

Assignees

• 三星显示有限公司

Dates

Publication Date

20260508

Application Date

20240925

Priority Date

20230927

Claims (20)

1. 1. A display device, the display device comprising: A substrate including an island portion, a first bridge portion extending from the island portion in a first direction, and a second bridge portion extending from the island portion in a second direction intersecting the first direction; a first conductive layer disposed on the substrate and including a first voltage line extending from the island portion to the first bridge portion and the second bridge portion; a second conductive layer disposed on the first conductive layer and including a plurality of signal lines extending from the island to the first bridge and a data line extending from the island to the second bridge, and And a third conductive layer disposed on the second conductive layer and including a second voltage line and a third voltage line, wherein the second voltage line extends from the island to the first bridge and the second bridge, and wherein the third voltage line extends from the island to the first bridge and the second bridge.
2. 2. The display device according to claim 1, wherein the first voltage line includes a1 st-1 st voltage line extending from the island portion to the first bridge portion and a1 st-2 nd voltage line extending from the island portion to the second bridge portion, Wherein the first conductive layer further includes an initialization voltage line extending from the island portion to the first bridge portion.
3. 3. The display device according to claim 2, further comprising: A semiconductor layer disposed on the substrate; a fourth conductive layer disposed on the semiconductor layer, and A fifth conductive layer disposed between the fourth conductive layer and the first conductive layer and including a connection electrode, Wherein the connection electrode overlaps the 1 st-2 nd voltage line in a plan view, and wherein the initialization voltage line is electrically connected to the connection electrode.
4. 4. The display device according to claim 3, wherein the first conductive layer further comprises a first scan line extending from the island portion to the first bridge portion, and Wherein the fourth conductive layer includes a first gate line electrically connected to the first scan line.
5. 5. The display device according to claim 2, wherein the 1 st voltage line has a first width in a direction perpendicular to an extending direction of the 1 st voltage line, and the 1 st voltage line has a second width in a direction perpendicular to the extending direction of the 1 st voltage line, the second width being larger than the first width.
6. 6. The display device according to claim 1, wherein the plurality of signal lines include a second scan line, a third scan line, and an emission control line, the second scan line, the third scan line, and the emission control line being arranged to be disposed apart from each other on the first bridge portion.
7. 7. The display device according to claim 6, further comprising: a semiconductor layer disposed on the substrate, and A fourth conductive layer disposed between the semiconductor layer and the first conductive layer and including a second gate line, a third gate line, and a fourth gate line, Wherein the second scan line is electrically connected to the second gate line, the third scan line is electrically connected to the third gate line, and the emission control line is electrically connected to the fourth gate line.
8. 8. The display device according to claim 1, wherein the island portion has a first boundary and a second boundary extending in the second direction and a third boundary and a fourth boundary extending in the first direction and connecting the first boundary to the second boundary, Wherein the data line extends from the third boundary to the fourth boundary.
9. 9. The display device according to claim 1, wherein the second voltage line includes a 2-1 nd voltage line extending from the island portion to the first bridge portion and a 2-2 nd voltage line extending from the island portion to the second bridge portion, and wherein the third voltage line includes a 3-1 rd voltage line extending from the island portion to the first bridge portion and a 3-2 rd voltage line extending from the island portion to the second bridge portion.
10. 10. The display device according to claim 9, wherein the 3-1 st voltage line and the 3-2 nd voltage line are connected to each other on the island portion.
11. 11. The display device according to claim 9, wherein the 2-1 st voltage line and the 2-2 nd voltage line each have a third width in a direction perpendicular to respective extending directions of the 2-1 st voltage line and the 2-2 nd voltage line, and wherein the 3-1 st voltage line and the 3-2 rd voltage line each have a fourth width in a direction perpendicular to respective extending directions of the 3-1 st voltage line and the 3-2 rd voltage line, the fourth width being smaller than the third width.
12. 12. The display device according to claim 1, further comprising a sixth conductive layer provided over the third conductive layer and including a first electrode pad electrically connected to a first electrode of a light emitting element and a second electrode pad electrically connected to a second electrode of the light emitting element, Wherein the third voltage line is electrically connected to the second electrode pad.
13. 13. The display device according to claim 1, wherein the first bridge portion and the second bridge portion each have two curved portions and a straight portion connecting the two curved portions to each other, and Wherein each of the two curved portions has an inner boundary and an outer boundary, the inner boundary and the outer boundary having different radii, and wherein a first distance between the inner boundary and a wiring disposed closest to the inner boundary is greater than a second distance between the outer boundary and a wiring disposed closest to the outer boundary.
14. 14. The display device according to claim 1, further comprising a pixel driving circuit provided on the island portion and a light emitting element electrically connected to the pixel driving circuit, Wherein the pixel driving circuit includes: a driving transistor having a gate electrode, a first terminal electrically connected to the first node, and a second terminal; A data writing transistor electrically connected to the first node and the data line; A first compensation transistor electrically connected to the gate electrode of the driving transistor and the second terminal of the driving transistor; A first emission control transistor electrically connected to the first node and the second node; A second emission control transistor electrically connected to a first electrode of the light emitting element and the second terminal of the driving transistor; A first initialization transistor electrically connected to a first initialization voltage line and the gate electrode of the driving transistor; a second initialization transistor electrically connected to a second initialization voltage line and the first electrode of the light emitting element; a third emission control transistor electrically connected to the second node and the second voltage line; A second compensation transistor electrically connected to the second node and the first voltage line; a storage capacitor electrically connected to the second node and the gate electrode of the driving transistor, and An auxiliary capacitor electrically connected to the first voltage line and the first electrode of the light emitting element.
15. 15. The display device according to claim 14, wherein the second electrode of the light-emitting element is electrically connected to the third voltage line.
16. 16. A display device, the display device comprising: A substrate including an island portion, a first bridge portion extending from the island portion in a first direction, and a second bridge portion extending from the island portion in a second direction intersecting the first direction; A first conductive layer disposed on the substrate and including a plurality of first wirings extending from the island to the first and second bridges; A second conductive layer disposed on the first conductive layer and including a plurality of second wirings extending from the island to the first and second bridges, and A first insulating layer disposed between the first conductive layer and the second conductive layer, Wherein the first insulating layer has a first thickness at the first bridge portion and the second bridge portion, and a second thickness at the island portion, the second thickness being smaller than the first thickness.
17. 17. The display device according to claim 16, wherein the plurality of first wirings include a first voltage line extending from the island portion to the first bridge portion and a second voltage line extending from the island portion to the second bridge portion, and wherein the plurality of second wirings include a data line extending from the island portion to the second bridge portion, Wherein a distance in a thickness direction between the first voltage line and the data line in the second bridge portion is greater than a distance in the thickness direction between the first voltage line and the data line in the island portion.
18. 18. The display device of claim 16, wherein the first insulating layer comprises an organic insulating material.
19. 19. The display device of claim 16, further comprising an organic layer disposed between the first insulating layer and the substrate, Wherein the organic layer is not overlapped with the island portion.
20. 20. The display device according to claim 16, further comprising: A third conductive layer disposed on the second conductive layer and including a plurality of third wirings extending from the island to the first and second bridges, and A second insulating layer disposed between the second conductive layer and the third conductive layer, Wherein the second insulating layer has a third thickness at the first bridge portion and the second bridge portion, and a fourth thickness at the island portion, the fourth thickness being smaller than the third thickness.

Description

Display device Technical Field One or more embodiments relate to a flexible display device, and more particularly, to a display device that can prevent damage. Background With the development of display devices that visually display electric signals, various display devices having excellent characteristics such as thinness, weight saving, and low power consumption have been introduced. For example, flexible display devices have been introduced that can be folded or rolled into a roll. Recently, research and development of display devices that can be changed into various forms are actively being conducted. Disclosure of Invention Technical problem One or more embodiments include a flexible display device. Technical proposal According to one or more embodiments, a display device includes a substrate including an island portion, a first bridge portion extending from the island portion in a first direction, and a second bridge portion extending from the island portion in a second direction crossing the first direction, a first conductive layer disposed on the substrate and including first voltage lines extending from the island portion to the first bridge portion and the second bridge portion, a second conductive layer disposed on the first conductive layer and including signal lines extending from the island portion to the first bridge portion and data lines extending from the island portion to the second bridge portion, and a third conductive layer disposed on the second conductive layer and including second voltage lines and third voltage lines, wherein the second voltage lines extend from the island portion to the first bridge portion and the second bridge portion, and wherein the third voltage lines extend from the island portion to the first bridge portion and the second bridge portion. In an embodiment, the first voltage line may include a 1 st-1 st voltage line extending from the island portion to the first bridge portion and a 1 st-2 nd voltage line extending from the island portion to the second bridge portion, wherein the first conductive layer may further include an initialization voltage line extending from the island portion to the first bridge portion. In an embodiment, the display device may further include a semiconductor layer disposed on the substrate, a fourth conductive layer disposed on the semiconductor layer, and a fifth conductive layer disposed between the fourth conductive layer and the first conductive layer and including a connection electrode, wherein the connection electrode may overlap the 1 st-2 nd voltage line in a plan view, and wherein the initialization voltage line may be electrically connected to the connection electrode. In an embodiment, the first conductive layer may further include a first scan line extending from the island portion to the first bridge portion, wherein the fourth conductive layer may include a first gate line electrically connected to the first scan line. In an embodiment, the 1 st voltage line may have a first width in a direction perpendicular to the extension direction of the 1 st voltage line, and the 1 st voltage line may have a second width in a direction perpendicular to the extension direction of the 1 st voltage line, the second width being greater than the first width. In an embodiment, the signal lines may include a second scan line, a third scan line, and an emission control line, which are arranged to be separated from each other on the first bridge portion. In an embodiment, the display device may further include a semiconductor layer disposed on the substrate, and a fourth conductive layer disposed between the semiconductor layer and the first conductive layer and including a second gate line, a third gate line, and a fourth gate line, wherein the second scan line may be electrically connected to the second gate line, the third scan line may be electrically connected to the third gate line, and the emission control line may be electrically connected to the fourth gate line. In an embodiment, the island may have a first boundary and a second boundary extending in the second direction and a third boundary and a fourth boundary extending in the first direction and connecting the first boundary to the second boundary, wherein the data line may extend from the third boundary to the fourth boundary. In an embodiment, the second voltage line may include a 2-1 nd voltage line extending from the island portion to the first bridge portion and a 2-2 nd voltage line extending from the island portion to the second bridge portion, and wherein the third voltage line may include a 3-1 rd voltage line extending from the island portion to the first bridge portion and a 3-2 rd voltage line extending from the island portion to the second bridge portion. In an embodiment, the 3-1 st voltage line and the 3-2 nd voltage line may be connected to each other on the island portion. In an embodiment, the 2-1 st voltage line and the 2-2 nd voltage line may each have