Touch sensing film structure

• US 9,244,554 B2
• Filed: 01/22/2014
• Issued: 01/26/2016
• Est. Priority Date: 01/22/2013
• Status: Active Grant

• Current Assignee: HannStar Display Corporation
• Original Assignee: Industrial Technology Research Institute
• Inventors: Kung, Chen-Pang, Kuo, Hui-Lung, Lee, Shu-Hsing, Lee, Cheng-Chung, Peng, Mei-Chih
• Primary Examiner(s): Johnson, Gerald
• Application Number:
  US14/161,164
• Publication Number:
  US 20140204291A1
• Time in Patent Office: 734 Days
• US Class Current: 1/1
• CPC Class Codes: G06F 2203/04102 Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means

Abstract

A touch sensing film structure including a touch-sensitive device layer, a water/oxygen barrier layer and a flexible substrate is provided. The touch-sensitive device layer has a first surface and a second surface opposite to the first surface. The water/oxygen barrier layer is formed on the first surface or the second surface or integrated with the touch-sensitive device layer to form a multi-function layer. The flexible substrate can stack with the water/oxygen barrier layer and the touch-sensitive device layer, or stack with the multi-function layer.

Claims

1. A touch sensing film structure, comprising:

a touch-sensitive device layer;

a water/oxygen barrier layer integrated with the touch-sensitive device layer to form a multi-function layer, wherein the water/oxygen barrier layer comprises a top water/oxygen barrier layer and a peripheral water/oxygen barrier layer, respectively covering a top side and lateral sides of the touch-sensitive device layer; and

a flexible substrate stacked with the multi-function layer.

2. A touch sensing film structure, comprising:

a touch-sensitive device layer;

a water/oxygen barrier layer integrated with the touch-sensitive device layer to form a multi-function layer; and

a flexible substrate stacked with the multi-function layer; and

a top water/oxygen barrier layer and a peripheral water/oxygen barrier layer, respectively covering a top side and lateral sides of the touch-sensitive device layer, the water/oxygen barrier layer and the flexible substrate.

3. The touch sensing film structure according to claim 2, further comprising a bottom water/oxygen barrier layer disposed on a bottom side of the touch-sensitive device layer, the water/oxygen barrier layer and the flexible substrate.

4. A touch sensing film structure, comprising:

a touch-sensitive device layer having a first surface and a second surface opposite to the first surface;

a water/oxygen barrier layer and a circular polarizing layer;

wherein, one of the water/oxygen barrier layer and the circular polarizing layer is formed on the first surface or the second surface or integrated with the touch-sensitive device layer to form a multi-function layer, or the circular polarizing layer is integrated with the water/oxygen barrier layer to form a multi-function layer; and

a flexible substrate stacked with the touch-sensitive device layer, the water/oxygen barrier layer and the circular polarizing layer or stacked with the multi-function layer.

5. The touch sensing film structure according to claim 4, further comprising a top water/oxygen barrier layer and a peripheral water/oxygen barrier layer, respectively covering a top side and lateral sides of the touch-sensitive device layer, the water/oxygen barrier layer, the circular polarizing layer and the flexible substrate.

6. The touch sensing film structure according to claim 5, further comprising a bottom water/oxygen barrier layer disposed under a bottom side of the touch-sensitive device layer, the water/oxygen barrier layer, the circular polarizing layer and the flexible substrate.

7. A touch sensing film structure, comprising:

a touch-sensitive device layer having a first surface and a second surface opposite to the first surface;

a water/oxygen barrier layer and a color filter layer;

wherein, one of the water/oxygen barrier layer and the color filter layer is formed on the first surface or the second surface or integrated with the touch-sensitive device layer to form a multi-function layer, or the water/oxygen barrier layer is integrated with the color filter layer to form a multi-function layer; and

a flexible substrate stacked with the touch-sensitive device layer, the water/oxygen barrier layer and the color filter layer or stacked with the multi-function layer.

8. The touch sensing film structure according to claim 7, further comprising a top water/oxygen barrier layer and a peripheral water/oxygen barrier layer, respectively covering a top side and lateral sides of the touch-sensitive device layer, the water/oxygen barrier layer, the color filter layer and the flexible substrate.

9. The touch sensing film structure according to claim 8, further comprising a bottom water/oxygen barrier layer disposed under a bottom side of the touch-sensitive device layer, the water/oxygen barrier layer, the color filter layer and the flexible substrate.

10. A touch sensing film structure, comprising:

a touch-sensitive device layer having a first surface and a second surface opposite to the first surface;

a water/oxygen barrier layer, a circular polarizing layer and a color filter layer;

wherein, one of the water/oxygen barrier layer, the circular polarizing layer and the color filter layer is formed on the first surface or the second surface or integrated with the touch-sensitive device layer to form a multi-function layer, or two of the water/oxygen barrier layer, the circular polarizing layer and the color filter layer are integrated to form a multi-function layer; and

a flexible substrate stacked with the touch-sensitive device layer, the water/oxygen barrier layer, the circular polarizing layer and the color filter layer or stacked with the multi-function layer.

11. The touch sensing film structure according to claim 10, further comprising a top water/oxygen barrier layer and a peripheral water/oxygen barrier layer, respectively covering a top side and lateral sides of the touch-sensitive device layer, the water/oxygen barrier layer, the circular polarizing layer, the color filter layer and the flexible substrate.

12. The touch sensing film structure according to claim 11, further comprising a bottom water/oxygen barrier layer disposed under a bottom side of the touch-sensitive device layer, the water/oxygen barrier layer, the circular polarizing layer, the color filter layer and the flexible substrate.

13. A touch sensing film structure, comprising:

a touch-sensitive device layer;

a water/oxygen barrier layer, a circular polarizing layer and a color filter layer;

wherein, two of the touch-sensitive device layer, the water/oxygen barrier layer, the circular polarizing layer and the color filter layer are integrated to form a first multi-function layer, and the other two are integrated to form a second multi-function layer, or three or all of the touch-sensitive device layer, the water/oxygen barrier layer, the circular polarizing layer and the color filter layer are integrated to form a multi-function layer; and

a flexible substrate stacked with the first multi-function layer and the second multi-function layer or stacked with the multi-function layer with three or all functions.

14. The touch sensing film structure according to claim 13, further comprising a top water/oxygen barrier layer and a peripheral water/oxygen barrier layer, respectively covering a top side and lateral sides of the touch-sensitive device layer, the water/oxygen barrier layer, the circular polarizing layer, the color filter layer and the flexible substrate.

15. The touch sensing film structure according to claim 14, further comprising a bottom water/oxygen barrier layer disposed under a bottom side of the touch-sensitive device layer, the water/oxygen barrier layer, the circular polarizing layer, the color filter layer and the flexible substrate.

16. A touch sensing film structure, comprising:

a touch-sensitive device layer having a first surface and a second surface opposite to the first surface;

a water/oxygen barrier layer formed on the first surface or the second surface, the water/oxygen barrier layer comprising a top water/oxygen barrier layer and a peripheral water/oxygen barrier layer respectively covering a top side and lateral sides of the touch-sensitive device layer; and

a flexible substrate stacked with the water/oxygen barrier layer and the touch-sensitive device layer.