Display device

• US 10,461,142 B2
• Filed: 10/24/2017
• Issued: 10/29/2019
• Est. Priority Date: 10/26/2016
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Hong, Jong Ho, Kim, Gun Mo, Shin, Jae Min, Joo, Hye Jin, Kim, Min Woo, Kang, Seung Bae
• Primary Examiner(s): Sandvik, Benjamin P
• Assistant Examiner(s): Assouman, Herve-Louis Y
• Application Number:
  US15/792,278
• Publication Number:
  US 20180114825A1
• Time in Patent Office: 735 Days
• Field of Search: None
• CPC Class Codes: H10K 2102/311 Flexible OLED
• CPC Class Codes: H10K 50/844 Encapsulations
• CPC Class Codes: H10K 59/121 characterised by the geometry or disposition of pixel elements
• CPC Class Codes: H10K 59/124 Insulating layers formed between TFT elements and OLED elements
• CPC Class Codes: H10K 59/131 Interconnections, e.g. wiring lines or terminals
• CPC Class Codes: H10K 59/38 comprising colour filters or colour changing media [CCM]
• CPC Class Codes: H10K 59/873 Encapsulations
• CPC Class Codes: H10K 77/10 Substrates, e.g. flexible substrates
• CPC Class Codes: H10K 77/111 Flexible substrates
• CPC Class Codes: Y02E 10/549 Organic PV cells
• CPC Class Codes: Y02P 70/50 Manufacturing or production processes characterised by the final manufactured product

Abstract

The present inventive concept relates to a display device.

A display device according to an exemplary embodiment of the present inventive concept include: a base layer including a plurality of islands in which a pixel is disposed, a plurality of bridges disposed around each of the plurality of islands, a plurality of first wires disposed in a bridge of the plurality of bridges connected to the pixel is disposed; an inorganic insulating layer disposed on the base layer and having an opening exposing a portion of the bridge; and an organic material layer covering the opening, wherein adjacent islands of the plurality of islands are connected to each other through at least the bridge of the plurality of bridges, and the plurality of first wires are disposed on the organic material layer.

Claims

1. A display device comprising:

a base layer including a plurality of islands in which a pixel is disposed, and a plurality of bridges disposed around each of the plurality of islands;

an inorganic insulating layer disposed on the base layer and having an opening exposing a portion of the bridge;

an organic material layer covering the opening; and

a plurality of first wires disposed on a bridge of the plurality of bridges and electrically connected to the pixel,

wherein adjacent islands of the plurality of islands are connected to each other through at least the bridge of the plurality of bridges,

and the plurality of first wires are disposed on the organic material layer.

2. The display device of claim 1, wherein

an island of the plurality of islands has a quadrangle shape,

and the bridge is connected to each side of the island.

3. The display device of claim 2, wherein

the bridge includes a curved portion disposed at a portion connected to the island.

4. The display device of claim 2, wherein

the base layer further includes a peripheral region connected to one side of the island and spaced apart from a bridge connected to the one side of the island so as to form a slit.

5. The display device of claim 4, wherein

the slit includes a curved portion.

6. The display device of claim 1, wherein

the inorganic insulating layer includes a buffer layer, a gate insulating layer, and an interlayer insulating layer sequentially stacked.

7. The display device of claim 6, wherein

the pixel includes a transistor, and the transistor includes

a semiconductor layer disposed on the buffer layer;

a gate electrode disposed on the gate insulating layer; and

a source electrode and a drain electrode disposed on the interlayer insulating layer.

8. The display device of claim 7, wherein

the plurality of first wires includes the same material as a material included in the source electrode and the drain electrode.

9. The display device of claim 6, further comprising:

a first conductive layer disposed on the gate insulating layer; and

a second conductive layer disposed on the interlayer insulating layer.

10. The display device of claim 9, wherein

the plurality of first wires includes the same material as a material included in the second conductive layer.

11. The display device of claim 9, wherein

an elongation of the second conductive layer is larger than an elongation of the first conductive layer.

12. The display device of claim 1, wherein

the organic material layer covers an edge of the inorganic insulating layer.

13. The display device of claim 12, wherein

the plurality of first wires extends from an upper portion of the organic material layer to an upper portion of the interlayer insulating layer.

14. The display device of claim 9, wherein

the plurality of first wires is disposed only on the organic material layer,

and the plurality of first wires is electrically connected to the second conductive layer through the first conductive layer.

15. The display device of claim 14, wherein

the plurality of first wires is connected to the first conductive layer through a first contact hole, and the first conductive layer is connected to the second conductive layer through a second contact hole.

16. The display device of claim 6, further comprising:

a first protection layer disposed on the interlayer insulating layer and the plurality of first wires.

17. The display device of claim 16, wherein

the pixel further includes an organic light emitting diode (OLED), and the OLED includes

a first pixel electrode disposed on the first protection layer on the interlayer insulating layer;

an organic emission layer disposed on the first pixel electrode; and

a second pixel electrode disposed on the organic emission layer.

18. The display device of claim 17, wherein

the second pixel electrode is integrally formed corresponding to a shape of the base layer, and is connected to at least one of the plurality of first wires through a contact hole formed in the first protection layer on the plurality of first wires.

19. The display device of claim 1, wherein

a first pixel for displaying a first color, a second pixel for displaying a second color, and a third pixel for displaying a third color are disposed on each of the plurality of islands.

20. A display device comprising:

a base layer including a plurality of islands in which pixels are disposed, and a plurality of bridges connecting each of the plurality of islands;

an inorganic insulating layer disposed on the plurality of islands;

organic light emitting diodes provided in each of the pixels and disposed on the inorganic insulating layer;

an organic material layer covering the plurality of bridges;

a plurality of wires disposed on the organic material layer and electrically connected to the pixels; and

an encapsulation layer disposed on the organic light emitting diodes and the plurality of wires.