STRETCHABLE DISPLAY AND FABRICATING METHOD THEREOF

• US 20150356926A1
• Filed: 01/12/2015
• Published: 12/10/2015
• Est. Priority Date: 06/09/2014
• Status: Abandoned Application

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: BAE, Jong-Sung
• Application Number:
  US14/594,556
• Publication Number:
  US 20150356926A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G09G 2310/0278 Details of driving circuits arranged to drive both scan and data electrodes
• CPC Class Codes: G09G 2370/18 Use of optical transmission of display information
• CPC Class Codes: G09G 2380/02 Flexible displays
• CPC Class Codes: G09G 3/035 for flexible display surfaces
• CPC Class Codes: G09G 3/3208 organic, e.g. using organic light-emitting diodes [OLED]
• CPC Class Codes: G09G 3/3291 in which the data driver supplies a variable data voltage for setting the current through, or the voltage across, the light-emitting elements
• CPC Class Codes: G09G 5/003 Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto specific for a CRT G09G1/165; for a flat panel G09G3/2092
• CPC Class Codes: H10K 2102/311 Flexible OLED
• CPC Class Codes: H10K 50/11 characterised by the electroluminescent [EL] layers
• CPC Class Codes: H10K 50/844 Encapsulations
• CPC Class Codes: H10K 50/856 comprising reflective means
• CPC Class Codes: H10K 59/1201 Manufacture or treatment
• CPC Class Codes: H10K 59/131 Interconnections, e.g. wiring lines or terminals
• CPC Class Codes: H10K 59/179 Interconnections, e.g. wiring lines or terminals
• CPC Class Codes: H10K 71/00 Manufacture or treatment specially adapted for the organic devices covered by this subclass
• CPC Class Codes: H10K 71/135 using ink-jet printing
• CPC Class Codes: H10K 71/80 using temporary substrates
• CPC Class Codes: H10K 77/111 Flexible substrates
• CPC Class Codes: Y02E 10/549 Organic PV cells

Abstract

A stretchable display includes a substrate, first wires on the substrate, second wire on the first wires, the second wires intersecting the first wires, organic light emitting layers at intersections of the first and second wires, and encapsulation layers formed on the respective organic light emitting layers. The encapsulation layers individually cover the respective organic light emitting layers.

Claims

1. A stretchable display, comprising:

a substrate;

first wires on the substrate;

second wires on the first wires, the second wires intersecting the first wires;

organic light emitting layers at intersections of the first and second wires; and

encapsulation layers on the respective organic light emitting layers, the encapsulation layers individually covering the respective organic light emitting layers.

2. The stretchable display as claimed in claim 1, further comprising:

an insulation layer between the first wires and the second wires, the insulation layer electrically insulating the first wires from the second wires.

3. The stretchable display as claimed in claim 2, wherein the organic light emitting layers directly contact the second wires, and contact the first wires via a contact hole, the contact hole extending through the insulation layer to expose the first wires.

4. The stretchable display as claimed in claim 1, wherein each of the first wires includes:

a first electric conductive wire; and

a first insulator wrapped around the first electric conductive wire.

5. The stretchable display as claimed in claim 4, wherein the organic light emitting layers contact the first electric conductive wire via a first contact hole, the first contact hole extending through the first insulator to expose the first electric conductive wire.

6. The stretchable display as claimed in claim 4, wherein each of the second wires includes:

a second electric conductive wire; and

a second insulator wrapped around the second electric conductive wire.

7. The stretchable display as claimed in claim 6, wherein the organic light emitting layers contact the second electric conductive wire via a second contact hole, the second contact hole extending through the second insulator to expose the second electric conductive wire.

8. The stretchable display as claimed in claim 1, further comprising:

a first driver that supplies a first drive voltage to the first wires; and

a second driver that supplies second drive voltages to the second wires.

9. The stretchable display as claimed in claim 8, further comprising:

an integrated driver that simultaneously supplies the first drive voltage to the first wires and supplies the second drive voltages to the second wires.

10. The stretchable display as claimed in claim 1, wherein the substrate has a rectangular shape, a circular shape, or a fan shape.

11. The stretchable display as claimed in claim 1, wherein the substrate includes a reflecting plate.

12. A method of fabricating a stretchable display, the method comprising:

securing a stretchable substrate to a support substrate;

forming first wires on the stretchable substrate;

forming second wires to intersect with the first wires;

forming organic light emitting layers by dropping an organic light emitting material onto intersections of the first and second wires; and

forming encapsulation layers by dropping an encapsulation material onto the respective organic light emitting layers to individually cover the respective organic light emitting layers.

13. The method as claimed in claim 12, further comprising:

forming an insulation layer between the first wires and the second wires to electrically insulate the first wires from the second wires.

14. The method as claimed in claim 13, further comprising:

forming at least one contact hole through the insulation layer to expose the first wires.

15. The method as claimed in claim 14, wherein forming the organic light emitting layers by dropping the organic light emitting material onto the intersections of the first and second wires includes dropping the organic light emitting material to cover the intersections of the first and second wires and the contact hole.

16. The method as claimed in claim 12, further comprising:

forming a first contact hole through an insulation material of the first wires to expose an electric conductive material of the first wires; and

forming a second contact hole through an insulation material of the second wires to expose an electric conductive material of the second wires.

17. The method as claimed in claim 16, wherein forming the organic light emitting layers by dropping the organic light emitting material onto the intersections of the first and second wires includes dropping the organic light emitting material to cover the intersections of the first and second wires and the first and second contact holes using an inkjet device.

18. The method as claimed in claim 12, wherein forming the encapsulation layers by dropping the encapsulation material to the respective organic light emitting layers to cover the respective organic light emitting layers includes dropping the encapsulation material onto the respective organic light emitting layers using an inkjet device.

19. A method of fabricating a stretchable display, the method comprising:

securing a stretchable substrate to a support substrate;

foaming first contact holes by etching first insulators of first wires formed on the stretchable substrate, the first contact holes exposing first electric conductive wires of the first wires;

forming second contact holes by etching second insulators of second wires formed on the stretchable substrate, the second contact holes exposing second electric conductive wires of the second wires;

forming organic light emitting layers by dropping an organic light emitting material to cover intersections of the first and second wires and the first and second contact holes; and

forming encapsulation layers by dropping an encapsulation material onto the respective organic light emitting layers to individually cover the respective organic light emitting layers.

20. The method as claimed in claim 19, wherein forming the organic light emitting layers by dropping the organic light emitting material to cover the intersections of the first and second wires and the first and second contact holes is carried out using an inkjet device, and

forming the encapsulation layers by dropping the encapsulation material onto the respective organic light emitting layers to cover the respective organic light emitting layers is carried out using the inkjet device.