TWI497363B - Touch structure and electronic device using same - Google Patents

Description

Touch structure and touch electronic product using the same

The invention relates to a touch structure and a touch electronic product using the touch structure.

Most of the touch structures of the prior electronic products can only be disposed on the main operation surface of the electronic product, and on other curved surfaces of the electronic product, it is necessary to implement the control function by setting mechanical buttons. However, such structural limitations will affect the design and development of electronic products in terms of styling and function.

In view of the above, it is necessary to provide a touch structure that can expand the touch operation area on a touch-sensitive electronic product.

A touch structure. The touch structure includes a substrate and a touch layer for sensing a touch action. At least a portion of the substrate has a curved shape. The touch layer is attached to the substrate and at least partially covers the curved portion of the substrate.

A touch-sensitive electronic product includes a touch structure and a display device disposed on the touch structure. The touch structure includes a substrate and a touch layer for sensing a touch action. At least a portion of the substrate has a curved shape. The touch layer is attached to the substrate and at least partially covers the curved portion of the substrate.

Compared with the prior art, the touch layer in the display device and the touch structure provided by the present invention covers the curved surface of the touch electronic product, thereby extending the touch function. Spread to the entire outer surface of the touch-sensitive electronic product without being limited by its shape, greatly expanding the design possibilities of the touch-sensitive electronic product in terms of shape and function. Moreover, the ultra-thin touch layer can be attached to the substrate more easily and is less likely to warp and fall off.

10, 20, 30, 40‧‧‧ Touch electronic products

110‧‧‧ touch structure

130‧‧‧Display device

120‧‧‧ touch layer

100, 200, 300, 400‧‧‧ substrates

101, 201, 301, 401‧‧ middle area

102, 202, 302, 402‧‧‧ edge areas

103‧‧‧ inner surface

104‧‧‧ outer surface

121‧‧‧Adhesive

122‧‧‧Sensing film

1221‧‧‧Substrate

1222‧‧‧Intermediate

1223‧‧‧ Conductive layer

203, 303‧‧‧ corners

10, 20, 30, 40‧‧‧ Touch electronic products

110‧‧‧ touch structure

130‧‧‧Display device

120‧‧‧ touch layer

100, 200, 300, 400‧‧‧ substrates

101, 201, 301, 401‧‧ middle area

102, 202, 302, 402‧‧‧ edge areas

103‧‧‧ inner surface

104‧‧‧ outer surface

121‧‧‧Adhesive

122‧‧‧Sensing film

1221‧‧‧Substrate

1222‧‧‧Intermediate

1223‧‧‧ Conductive layer

203, 303‧‧‧ corners

1 is a schematic structural view of a touch-sensitive electronic product according to a first embodiment of the present invention.

2 is a cross-sectional view of the touch electronic product of FIG. 1 taken along line II-II.

3 is a schematic structural view of a touch-sensitive electronic product provided in a second embodiment of the present invention.

4 is a schematic structural view of a touch-sensitive electronic product provided in a third embodiment of the present invention.

FIG. 5 is a schematic structural diagram of a touch-sensitive electronic product provided in a fourth embodiment of the present invention.

FIG. 6 is a schematic structural view of the sensing film in FIG. 2. FIG.

Referring to FIG. 1 and FIG. 2 , the touch electronic product 10 of the first embodiment of the present invention includes a touch structure 110 and a display device 130 disposed on the touch structure 110 . The touch structure 110 includes a substrate 100 and a touch layer 120 disposed on the substrate 100 . The touch layer 120 is configured to sense a touch action of a user to generate a sensing signal corresponding to the touch action. The display device 130 is configured to display an operation interface for a user to touch.

The substrate 100 is made of a transparent material, which includes an intermediate region 101 and an intermediate region The edge region 102 extends 101 from the periphery. The intermediate region 101 and the edge region 102 may be a special shape composed of a planar or planar and non-planar solid structure. In the present embodiment, the substrate 100 is made of a glass material. The intermediate region 101 is a rectangular plane. The edge region 102 is a curved surface that is curved and extended from the opposite sides of the intermediate portion 101 toward the same side. The substrate 100 includes an inner surface 103 on a side that is surrounded by the curved edge region 102 and an outer surface 104 that is parallel to the inner surface 103. The touch layer 120 and the display device 130 have the same shape as the substrate 100 and are sequentially attached to the inner surface 103 of the substrate 100. It can be understood that in other alternative embodiments, the touch layer 120 can also be attached to the outer surface 104 of the substrate 100, and the display device 130 is attached to the inner surface 103 of the substrate 100.

The touch layer 120 is attached to the substrate 100 by a layer of adhesive 121. The adhesive is made of a transparent material. In the embodiment, the adhesive 121 may be acrylic, epoxy or silicone. The touch layer 120 includes a pair of sensing films 122 and a layer of adhesive 121. The pair of sensing films 122 are adhered to each other by the adhesive 121. The sensing films 122 are respectively grounded and connected to a control circuit to detect a change in the electrical quantity on the sensing film 122 caused by the touch action to sense the coordinates of the touch point.

As shown in FIG. 6 , the sensing film 122 includes a substrate 1221 , an intermediate layer 1222 , and a conductive layer 1223 . The intermediate layer 1222 is disposed on the substrate 1221. The conductive layer 1223 is disposed on the intermediate layer 1222. When the touch layer 120 is attached to the inner surface 103 of the substrate 100, the conductive layer 1223 is attached to the substrate 100 by the adhesive 121. When the touch layer 120 is attached to the outer surface 104 of the substrate 100, the substrate 1221 is attached to the substrate 100 by an adhesive 121. The material of the substrate 1221 is selected from polyterephthalic acid. (Poly Ethylene Terephthalate, PET), Poly Methylmethacrylate (PMMA), Polycarbonate (PC), Cyclo Olefin Polymer (COP), Triacetate Cellulose , TAC) and its compositions. The material of the intermediate layer 1222 is selected from the group consisting of oxides such as cerium oxide (SiO2), niobium pentoxide (Nb2O5), titanium dioxide (TiO2), or Acrylic, Epoxy, and Silicon. And other organic materials. The material of the conductive layer 1223 is selected from the group consisting of Indium Tin Oxide (ITO), Indium Zinc Oxide (IZO), Gallium Zinc Oxide (GZO), and Conjugated Conducting. Polymer), Carbon Nano Tube (CNT), Nano Silver Wire. The material of the adhesive 121 is selected from the group consisting of Acrylic, Epoxy, and Silicon.

Preferably, the thickness of the sensing film 122 is less than or equal to 100 μm. The thickness of the adhesive 121 is less than or equal to 250 μm. Therefore, the overall thickness of the touch layer 120 is thin, and it is not required to be directly attached to the substrate 100 by the rolling process, and is not warped due to the restoring force generated by its own hardness.

The display device 130 is attached to the inner surface 103 of the touch layer 120 or the substrate 100 by the adhesive 121. The display device 130 is a flexible display device 130 having flexibility to meet the requirements of being attached to the substrate 100 having a curved surface. In the embodiment, the display device 130 is an Organic Light Emitting Device Display (OLED Display).

Since the touch layer 120 and the display device 130 of the present invention cover the curved surface of the touch electronic product 10, the touch function can be extended to the entire touch electronic product 10. The outer surface 104 is not limited by its shape, greatly expanding the design possibilities of the touch-sensitive electronic product 10 in terms of shape and function. Moreover, the ultra-thin touch layer 120 can be attached to the substrate more easily and is less likely to warp and fall off.

As shown in FIG. 3, the touch-sensitive electronic product 20 provided by the second embodiment of the present invention has a structure similar to that of the touch-sensitive electronic product 10 of the first embodiment of the present invention, and the main difference is that the The intermediate portion 201 of the substrate 200 is a rectangular plane, and a pair of corners 203 of the intermediate portion 201 adjacent in the width direction have a circular arc shape. The edge region 202 is formed by bending a pair of long sides and a wide side surrounded by the arcuate corners 203 of the intermediate portion 201 toward the same side.

As shown in FIG. 4, the touch-sensitive electronic product 30 provided by the third embodiment of the present invention has a structure similar to that of the touch-sensitive electronic product 10 of the first embodiment of the present invention, and the main difference is that: The intermediate portion 301 of the substrate 300 is substantially rectangular, and the four corners 303 of the intermediate portion 301 are all circular arc shapes. The edge region 302 is formed by bending the entire outer edge of the intermediate portion 301 toward the same side.

As shown in FIG. 5, the touch-sensitive electronic product 40 provided by the fourth embodiment of the present invention has a structure similar to that of the touch-sensitive electronic product 10 of the first embodiment of the present invention, and the main difference is that: The intermediate portion 401 of the substrate 400 is rectangular. The edge region 402 is formed by bending one of the long sides of the intermediate portion 401 toward one side of the substrate 400.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only the preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and equivalent modifications or variations made by those skilled in the art in light of the spirit of the present invention are It should be covered by the following patent application.

110‧‧‧ touch structure

130‧‧‧Display device

120‧‧‧ touch layer

100‧‧‧Substrate

103‧‧‧ inner surface

104‧‧‧ outer surface

121‧‧‧Adhesive

122‧‧‧Sensing film

Claims (19)

A touch structure includes a substrate and a touch layer for sensing a touch action, at least a portion of the substrate being curved to form a curved portion, the touch layer being attached to the substrate and at least partially covered a curved portion of the substrate. The touch structure of claim 1, wherein the substrate comprises an intermediate region and an edge region extending outward from a periphery of the intermediate region, and a shape of at least one of the intermediate region and the edge region The shape is a curved surface, and the other shape is selected from one or a combination of a planar or a three-dimensional structure, respectively. The touch structure according to claim 2, wherein the intermediate portion is a flat surface, and the edge region is a curved surface extending from the opposite sides of the intermediate portion toward the same side. The touch structure of claim 2, wherein the intermediate portion is a rectangular plane, and a pair of corners of the intermediate portion adjacent in the width direction are arc-shaped, and the edge region is A pair of long sides and a wide side surrounded by arcuate corners in the middle portion are respectively bent and extended toward the same side. The touch structure of claim 2, wherein the intermediate region is a rectangular plane, and the four corners of the intermediate region are arc-shaped, and the edge region is the entire outer portion of the intermediate region. The edges are curved and extended toward the same side. The touch structure of claim 2, wherein the intermediate portion is a plane, and the edge region is formed by bending one of the long sides of the intermediate portion toward one side of the substrate. The touch structure of claim 1, wherein the touch layer comprises a pair of sensing films and an adhesive layer, and the pair of sensing films are adhered to each other by the adhesive. The touch structure of claim 7, wherein the thickness of the sensing film is less than or equal to 100 μm. The touch structure of claim 7, wherein the adhesive has a thickness of less than or equal to 250 μm. The touch structure of claim 7, wherein the material of the adhesive is selected from one or a combination of acrylic, epoxy, and silicone. The touch structure of claim 7, wherein the sensing film comprises a substrate, an intermediate layer and a conductive layer, the intermediate layer is disposed on the substrate, and the conductive layer is disposed on the intermediate layer . The touch structure of claim 11, wherein the material of the substrate is selected from the group consisting of polyterephthalic acid, polymethyl methacrylate, polycarbonate, cycloolefin polymer, and cellulose triacetate. One or a combination of several. The touch structure of claim 11, wherein the material of the intermediate layer is selected from one or more of the group consisting of cerium oxide, antimony pentoxide, titanium dioxide, acrylic, epoxy resin and silicone rubber. The combination. The touch structure of claim 11, wherein the material of the conductive layer is selected from the group consisting of indium tin oxide, indium zinc oxide, zinc gallium oxide, conjugated conductive polymer, carbon nanotube, and nano silver. line. A touch control electronic product, comprising the touch structure according to any one of claims 1 to 15 and a display device disposed on the touch structure. The touch-sensitive electronic product according to claim 15, wherein the display device is a flexible organic light-emitting diode display device. The touch-sensitive electronic product of claim 15, wherein the substrate comprises an inner surface and an outer surface parallel to the inner surface, the touch layer is disposed on the inner surface, and the display device is disposed On the touch layer. The touch-sensitive electronic product of claim 15, wherein the substrate comprises an inner surface and an outer surface parallel to the inner surface, the touch layer is disposed on the outer surface, and the display device is disposed at On the inner surface. The touch-sensitive electronic product of any one of claims 17 or 18, wherein the display device at least partially covers a curved portion of the substrate.