Touch-sensing display apparatus and fabricating method thereof

• US 8,830,202 B2
• Filed: 02/09/2010
• Issued: 09/09/2014
• Est. Priority Date: 04/21/2009
• Status: Active Grant

• Current Assignee: HannStar Display Corporation
• Original Assignee: Industrial Technology Research Institute
• Inventors: Chen, Kuang-Jung
• Primary Examiner(s): Boddie, William
• Assistant Examiner(s): Shapiro, Leonid
• Application Number:
  US12/703,163
• Publication Number:
  US 20100265207A1
• Time in Patent Office: 1,673 Days
• Field of Search: 345/174, 345/173
• US Class Current: 345/174
• CPC Class Codes: G06F 2203/04111 Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/0445 using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
• CPC Class Codes: H10K 59/40 OLEDs integrated with touch screens

Abstract

A touch-sensing display apparatus including a touch panel, an environmentally sensitive electronic device and an adhesive layer is provided. The water/oxygen vapor transmission rate of the touch panel is lower than 10⁻¹ g/m²*day, and the touch panel includes a first substrate, a sensing circuit and at least one water/oxygen barrier layer. The first substrate is a first flexible substrate. The sensing circuit and the water/oxygen barrier layer are disposed on the first substrate. The environmentally sensitive electronic device includes a second substrate and a pixel array. The pixel array is disposed on the second substrate and between the first substrate and the second substrate. The adhesive layer is disposed between the touch panel and the environmentally sensitive electronic device. Moreover, a fabricating method of the above-mentioned touch-sensing display apparatus is also provided.

Claims

1. A touch-sensing display apparatus, comprising:

a surface capacitive touch panel, wherein an overall water/oxygen vapor transmission rate (WVTR/OTR) thereof is lower than 10-1 g/m2*day, and the surface capacitive touch panel comprises;

a first substrate, being a first flexible substrate; and

a sensing circuit, disposed on the first substrate, comprising;

a first circuit layer;

a second circuit layer; and

a touch-sensing conductive layer, electrically connected to the second circuit layer, wherein the first circuit layer is located at one side of the first substrate, and the second circuit layer and the touch-sensing conductive layer are located at the other side of the first substrate;

a functional layer, covering the touch-sensing conductive layer and the second circuit layer;

a first barrier layer, disposed between the functional layer and the touch-sensing conductive layer;

a second barrier layer, disposed between the first substrate and the first circuit layer;

an environmentally sensitive electronic device, comprising;

a second substrate; and

a pixel array and a display medium, disposed on the second substrate and located between the first substrate and the second substrate; and

an adhesive layer, adhered between the touch panel and the environmentally sensitive electronic device.

2. The touch-sensing display apparatus as claimed in claim 1, further comprising an electromagnetic interference (EMI) shielding layer disposed between the first substrate and the first circuit layer.

3. The touch-sensing display apparatus as claimed in claim 2, wherein the second barrier layer is disposed between the first substrate and the EMI shielding layer.

4. The touch-sensing display apparatus as claimed in claim 2, further comprising a third barrier layer disposed between the adhesive layer and the EMI shielding layer.

5. The touch-sensing display apparatus as claimed in claim 1, wherein the overall WVTR/OTR of the touch panel is lower than 10⁻

2 g/m²*day.

6. The touch-sensing display apparatus as claimed in claim 1, wherein the overall WVTR/OTR of the touch panel is lower than 10⁻

3 g/m²*day.

7. The touch-sensing display apparatus as claimed in claim 1, wherein the overall WVTR/OTR of the touch panel is lower than 10⁻

4 g/m²*day.

8. The touch-sensing display apparatus as claimed in claim 1, wherein the overall WVTR/OTR of the touch panel is lower than 10⁻

5 g/m²*day.

9. The touch-sensing display apparatus as claimed in claim 1, wherein the overall WVTR/OTR of the touch panel is lower than 10⁻

6 g/m²*day.

10. The touch-sensing display apparatus as claimed in claim 1, wherein the environmentally sensitive electronic device comprises an organic light emitting diode (OLED) display device, a liquid crystal display (LCD) device, or an electrophoretic display device.

21. The touch-sensing display apparatus as claimed in claim 1, wherein the adhesive layer comprises an optical adhesive layer and one surface of the optical adhesive layer is adhered to the touch panel while the other surface is adhered to the environmentally sensitive electronic device.

22. The touch-sensing display apparatus as claimed in claim 1, wherein the adhesive layer comprises a sealant, and the sealant, the touch panel, and the environmentally sensitive electronic device together enclose a space.

23. The touch-sensing display apparatus as claimed in claim 22, wherein the adhesive layer further comprises an optical fill, disposed within the space formed by the sealant, the touch panel, and the environmentally sensitive electronic device.

11. A touch-sensing display apparatus, comprising:

a projected capacitive touch panel, wherein an overall water/oxygen vapor transmission rate (WVTR/OTR) thereof is lower than 10-1 g/m2*day, and the projected capacitive touch panel comprises;

a first substrate, being a first flexible substrate; and

a sensing circuit, disposed on the first substrate, comprising;

a first circuit layer;

a first touch-sensing conductive layer, electrically connected to the first circuit layer;

a second circuit layer; and

a second touch-sensing conductive layer, electrically connected to the second circuit layer, wherein the first circuit layer and the first touch-sensing conductive layer are located at one side of the first substrate while the second circuit layer and the second touch-sensing conductive layer are located at the other side of the first substrate;

a functional layer, covering the second touch-sensing conductive layer and the second circuit layer;

a first barrier layer, disposed between the functional layer and the second touch-sensing conductive layer;

a second barrier layer;

an environmentally sensitive electronic device, comprising;

a second substrate; and

a pixel array and a display medium, disposed on the second substrate and located between the first substrate and the second substrate; and

an adhesive layer, adhered between the touch panel and the environmentally sensitive electronic device, wherein the second barrier layer is disposed between the first substrate and the adhesive layer.

12. The touch-sensing display apparatus as claimed in claim 11, further comprising an electromagnetic interference (EMI) shielding layer disposed between the first touch-sensing conductive layer and the environmentally sensitive electronic device.

13. The touch-sensing display apparatus as claimed in claim 12, wherein the second barrier layer is disposed between the first touch-sensing conductive layer and the EMI shielding layer.

14. The touch-sensing display apparatus as claimed in claim 12, further comprising a third barrier layer disposed between the adhesive layer and the EMI shielding layer.

15. A touch-sensing display apparatus, comprising:

a projected capacitive touch panel, wherein an overall water/oxygen vapor transmission rate (WVTR/OTR) thereof is lower than 10-1 g/m2*day, and the projected capacitive touch panel comprises;

a first substrate, being a first flexible substrate; and

a sensing circuit, disposed on the first substrate, comprising;

a first circuit layer;

a first touch-sensing conductive layer, electrically connected to the first circuit layer;

a second circuit layer; and

a second touch-sensing conductive layer, electrically connected to the second circuit layer, wherein the first circuit layer, the first touch-sensing conductive layer, the second circuit layer, and the second touch-sensing conductive layer are located at one side of the first substrate;

a functional layer, covering the sensing circuit;

a first barrier layer, disposed between the functional layer and the sensing circuit;

a second barrier layer;

an environmentally sensitive electronic device, comprising;

a second substrate; and

a pixel array and a display medium, disposed on the second substrate and located between the first substrate and the second substrate; and

an adhesive layer, adhered between the touch panel and the environmentally sensitive electronic device, wherein the second barrier layer is disposed between the first substrate and the adhesive layer.

16. The touch-sensing display apparatus as claimed in claim 15, further comprising an electromagnetic interference (EMI) shielding layer disposed between the first substrate and the environmentally sensitive electronic device.

17. The touch-sensing display apparatus as claimed in claim 16, wherein the second barrier layer is disposed between the first substrate and the EMI shielding layer.

18. The touch-sensing display apparatus as claimed in claim 16, further comprising a third barrier layer disposed between the adhesive layer and the EMI shielding layer.

19. A touch-sensing display apparatus, comprising:

a resistive touch panel, wherein an overall water/oxygen vapor transmission rate (WVTR/OTR) thereof is lower than 10-1 g/m2*day, and the resistive touch panel comprises;

a first substrate, being a first flexible substrate;

a second flexible substrate; and

a sensing circuit, disposed on the first substrate, comprising;

a first circuit layer;

a first touch-sensing conductive layer, electrically connected to the first circuit layer;

a second circuit layer; and

a second touch-sensing conductive layer, electrically connected to the second circuit layer, wherein the first circuit layer, the first touch-sensing conductive layer, the second circuit layer, and the second touch-sensing conductive layer are located between the first flexible substrate and the second flexible substrate;

a functional layer, covering the second flexible substrate;

a first barrier layer, disposed between the second flexible substrate and the functional layer;

a second barrier layer;

an environmentally sensitive electronic device, comprising;

a second substrate; and

a pixel array and a display medium, disposed on the second substrate and located between the first substrate and the second substrate; and

an adhesive layer, adhered between the touch panel and the environmentally sensitive electronic device, wherein the second barrier layer is disposed between the first substrate and the adhesive layer.

20. The touch-sensing display apparatus as claimed in claim 19, wherein the second barrier layer is disposed between the first flexible substrate and the adhesive layer.