US-12628519-B2 - Display device with connected base units

Abstract

A display device includes: a substrate including a first area and a first connection area extending from the first area; an inorganic insulating layer disposed on the substrate in the first area and having a side surface; an organic layer disposed on the substrate, covering the side surface of the inorganic insulating layer and arranged in the first connection area; a first organic insulating layer disposed on the inorganic insulating layer in the first area and having a first side surface; and a first wire disposed on the first organic insulating layer in the first area and disposed on the organic layer in the first connection area, where the first wire extends along the first side surface in a direction from the first area to the first connection area.

Inventors

• Minkyu WOO
• Gyungsoon Park
• Seonyoung Choi

Assignees

• SAMSUNG DISPLAY CO., LTD.

Dates

Publication Date

20260512

Application Date

20230201

Priority Date

20220203

Claims (17)

1. 1 . A display device comprising: a substrate including a first area and a first connection area extending from the first area; an inorganic insulating layer disposed on the substrate in the first area and having a side surface; an organic layer disposed on the substrate, covering the side surface of the inorganic insulating layer and arranged in the first connection area; a first organic insulating layer disposed on the inorganic insulating layer in the first area and having a first edge facing the first connection area; a second organic insulating layer disposed on the first organic insulating layer in the first area; and a first wire disposed between the first organic insulating layer and the second organic insulating layer in the first area and disposed directly on the organic layer in the first connection area, wherein the first wire extends in a first direction from the first area to the first connection area, and the second organic insulating layer extends in the first direction beyond the first edge of the first organic insulating layer.
2. 2 . The display device of claim 1 , wherein the substrate further comprises a second connection area extending from the first area, the organic layer is further arranged in the second connection area, the second organic insulating layer has a second edge facing the second connection area, the first organic insulating layer extends in a second direction from the first area to the second connection area beyond the second edge of the second organic insulating layer, and the display device further comprises a second wire arranged between the organic layer and the first organic insulating layer in the second connection area.
3. 3 . The display device of claim 2 , wherein a thickness of the second organic insulating layer in the first connection area is the same as a thickness of the first organic insulating layer in the second connection area.
4. 4 . The display device of claim 2 , wherein the first wire in the first connection area is spaced apart from the substrate by a first distance in a perpendicular direction to a top surface of the substrate, the second wire in the second connection area is spaced apart from the substrate by a second distance in the perpendicular direction to the top surface of the substrate, and the first distance is the same as the second distance.
5. 5 . The display device of claim 2 , wherein a contact hole is defined through the first organic insulating layer in the first area, and the first wire and the second wire are connected to each other through the contact hole.
6. 6 . The display device of claim 2 , wherein the first wire and the second wire comprise a same material as each other.
7. 7 . The display device of claim 1 , wherein the substrate further comprises a second area spaced apart from the first area, the first connection area extends from the first area to the second area, and an edge of the first area, an edge of the first connection area and an edge of the second area in a plan view define at least a portion of an opening area of the substrate.
8. 8 . The display device of claim 1 , further comprising a light-emitting element disposed on the second organic insulating layer.
9. 9 . A display device comprising: a substrate including a first area, and a first connection area, a second connection area, a third connection area and a fourth connection area, which extend from the first area respectively; a first organic insulating layer disposed on the substrate and extending along the second connection area, the first area, and the fourth connection area; a second organic insulating layer disposed on the first organic insulating layer in the first area, and extending from the first area to each of the first connection area and the third connection area; a first wire arranged between the first organic insulating layer and the second organic insulating layer in the first area, and extending from the first area to each of the first connection area and the third connection area; a second wire arranged between the substrate and the first organic insulating layer in the first area, and extending from the first area to each of the second connection area and the fourth connection areas; an inorganic insulating layer arranged between the substrate and the first organic insulating layer in the first area, and having a side surface; and an organic layer disposed on the substrate, covering the side surface of the inorganic insulating layer and arranged in each of the first connection area and the second connection area, wherein the first wire in the first connection area is spaced apart from the substrate by a first distance in a perpendicular direction to a top surface of the substrate, the second wire in the second connection area is spaced apart from the substrate by a second distance in the perpendicular direction to the top surface of the substrate, and the first distance is the same as the second distance.
10. 10 . The display device of claim 9 , wherein a thickness of the second organic insulating layer in the first connection area is the same as a thickness of the first organic insulating layer in the second connection area.
11. 11 . The display device of claim 9 , wherein the first organic insulating layer includes a first edge, and the second organic insulating layer extends to the first connection area across the first edge in a plan view.
12. 12 . The display device of claim 9 , wherein the second organic insulating layer includes a second edge, and the first organic insulating layer extends to the second connection area across the second edge in a plan view.
13. 13 . The display device of claim 9 , wherein the first wire and the second wire cross each other in the first area in a plan view, a contact hole is defined through the first organic insulating layer in the first area, and the first wire and the second wire are connected to each other through the contact hole.
14. 14 . The display device of claim 9 , wherein the first wire and the second wire comprise a same material as each other.
15. 15 . The display device of claim 9 , wherein the substrate further comprises a second area spaced apart from the first area, the first connection area extends from the first area to the second area, and an edge of the first area, an edge of the first connection area and an edge of the second area define at least a portion of an opening area of the substrate.
16. 16 . The display device of claim 9 , wherein the first organic insulating layer has a first side surface, and the first wire extends surface in a direction from the first area to the first connection area.
17. 17 . The display device of claim 9 , further comprising: a light-emitting element disposed on the second organic insulating layer in the first area.

Description

This application claims priority to Korean Patent Application No. 10-2022-0014385, filed on Feb. 3, 2022, and all the benefits accruing therefrom under 35 U.S.C. § 119, the content of which in its entirety is herein incorporated by reference. BACKGROUND 1. Field One or more embodiments relate to a display device. 2. Description of the Related Art With the development of display devices for visually displaying electric signals, various display devices having desired characteristics, such as small thicknesses, light weights, and low power consumption, are introduced. For example, flexible display devices capable of being folded or rolled are introduced. Recently, research and development of stretchable display devices having shapes that may variously change have been actively conducted. Such a display device may include various wires and a light-emitting element connected to the wires. The various wires may be a power supply wire for transmitting a power voltage, or a signal line for transmitting a signal. SUMMARY One or more embodiments include a display device having a shape that may variously change and in which various wires maintain low resistance. According to one or more embodiments, a display device includes: a substrate including a first area and a first connection area extending from the first area; an inorganic insulating layer disposed on the substrate in the first area and having a side surface; an organic layer disposed on the substrate, covering the side surface of the inorganic insulating layer and arranged in the first connection area; a first organic insulating layer disposed on the inorganic insulating layer in the first area and having a first side surface, and a first wire disposed on the first organic insulating layer in the first area and disposed on the organic layer in the first connection area, where the first wire extends along the first side surface in a direction from the first area to the first connection area. In an embodiment, the substrate may further include a second connection area extending from the first area, the organic layer may be further arranged in the second connection area, the first organic insulating layer may extend from the first area to the second connection area, and the display device may further include a second wire arranged between the organic layer and the first organic insulating layer. In an embodiment, the display device may further include a second organic insulating layer disposed on the first wire and having a second side surface, where the first organic insulating layer may extend in a direction from the second side surface to the second connection area. In an embodiment, the second organic insulating layer may extend from the first area to the first connection area, the first wire may be arranged between the organic layer and the second organic insulating layer in the first connection area, and a thickness of the second organic insulating layer in the first connection area may be the same as a thickness of the first organic insulating layer in the second connection area. In an embodiment, the first wire in the first connection area may be spaced apart from the substrate by a first distance in a perpendicular direction to a top surface of the substrate, the second wire in the second connection area may be spaced apart from the substrate by a second distance in the perpendicular direction to the top surface of the substrate, and the first distance and the second distance may be the same. In an embodiment, a contact hole may be defined through the first organic insulating layer in the first area, and the first wire and the second wire may be connected to each other through the contact hole. In an embodiment, the first wire and the second wire may include a same material as each other. In an embodiment, the display device may further include a second organic insulating layer disposed on the first wire, wherein the second organic insulating layer may extend along the first side surface in a direction from the first area to the first connection area. In an embodiment, the substrate may further include a second area spaced apart from the first area, the first connection area may extend from the first area to the second area, and an edge of the first area, an edge of the first connection area, and an edge of the second area in a plan view may define at least a portion of an opening area of the substrate. In an embodiment, the display device may further include: a second organic insulating layer disposed on the first wire in the first area; and a light-emitting element disposed on the second organic insulating layer. According to one or more embodiments, a display device includes: a substrate including a first area, and a first connection area, a second connection area, a third connection area and a fourth connection area, which extend from the first area, respectively; a first organic insulating layer disposed on the substrate and extending along the sec