Ultra-thin flexible electronic device

• US 20080160795A1
• Filed: 08/31/2007
• Published: 07/03/2008
• Est. Priority Date: 11/10/2004
• Status: Abandoned Application

• Current Assignee: Industrial Technology Research Institute
• Original Assignee: Industrial Technology Research Institute
• Inventors: Liou, Chang-Ho, Huang, Jih-Fon, Chen, Ming-Daw
• Application Number:
  US11/896,460
• Publication Number:
  US 20080160795A1
• Time in Patent Office: Days
• US Class Current: 439/67
• CPC Class Codes: G04G 17/08 Housings
• CPC Class Codes: H05K 1/189 characterised by the use of a flexible or folded printed circuit H05K3/326 takes precedence

Abstract

An ultra-thin flexible electronic device 1 of the invention, comprises: a flexible printed circuit board (FPC) 2, having a circuit layout 13 arranged thereon; an input element 3, electrical-connected to the FPC for setting up a data; a display 4, electrical-connected to the FPC 2 for displaying the data; a power supply 5, connected to the FPC 2 for providing electricity to the FPC 2, the input element 3 and the display 4 through the circuit layout 13; a thin substrate 61, being disposed to lay over the FPC 2 and the power supply 5; and a polymer film 7; wherein the FPC 2, the input element 3, the display 4, the power supply 5 and the thin substrate 61 are all flexible.

Claims

1. An ultra-thin flexible electronic device, comprising:

a flexible printed circuit board (FPC);

an input element, electrical-connected to the FPC for setting up a data;

a display, electrical-connected to the FPC for displaying the data;

a power supply, connected to the FPC for providing electricity to the FPC, the input element and the display; and

a thin substrate, being disposed to completely lay over the FPC and the power supply;

wherein the FPC, the input element, the display, the power supply and the thin substrate are all flexible and at least one thin film transistor (TFT) can be formed on the thin substrate.

2. The device of claim 1, wherein the device further comprises an oscillator (OSC), being electrical-connected to the FPC for providing accurate timing.

3. The device of claim 1, wherein a polymer film is disposed on the surface of the ultra-thin flexible electronic device, and the polymer film is substantially a polyethylene terephthalate (PET)

4. The device of claim 3, wherein the polymer film is integrally formed.

5. The device of claim 1, wherein a circuit layout is arranged on the flexible printed circuit board (FPC), the circuit layout being connected to the power supply enabling the power supply to provide electricity to the FPC, the input element, and the display.

6. The device of claim 1, wherein a circuit layout is arranged on the display, the circuit layout being connected to the power supply enabling the power supply to provide electricity to the FPC, the input element, and the display.

7. The device of claim 1, wherein the display is an active display.

8. The device of claim 7, wherein the active display is substantially an organic light-emitting diode (OLED).

9. The device of claim 7, wherein the active display is substantially an active matrix liquid crystal display (AMLCD).

10. The device of claim 1, wherein the display is substantially a passive display.

11. The device of claim 1, wherein the power supply is substantially a polymer battery.

12. The device of claim 11, wherein the polymer battery is substantially a lithium battery.

13. The device of claim 1, wherein the device further comprises a pasting element enabling the device to be able to attach itself on a surface.

14. The device of claim 13, wherein the pasting element is substantially a convenient glue.

15. The device of claim 13, wherein the pasting element is substantially a Velcro strip.

16. The device of claim 13, wherein the pasting element is substantially a magnetic material.

17. The device of claim 1, wherein the total thickness of the device is less than 1 mm.

18. The device of claim 1, wherein the flexible printed circuit board (FPC) is substantially a chip on film (COF).

19. The device of claim 1, wherein a metal foil is arranged between the thin substrate and the power supply.

20. The device of claim 1, wherein the thin film transistor can be an organic thin film transistor, an inorganic thin film transistor, a polysilicon thin film transistor, or an amorphous thin film transistor.