Foldable touch display device and touch device thereof

Abstract

The present invention provides a foldable touch device including a light-transmitting cover plate and a touch sensing layer. The elastic modulus of the light-transmitting cover plate is between 3 MPa and 10 MPa, and the touch sensing layer is covered by the light-transmitting cover plate, wherein the touch sensing layer is foldable. The present invention utilizes a light-transmitting cover plate with a small bending radius and good bending resistance to cover the foldable touch sensing layer, thereby applying the foldable touch device to a foldable display module, and realizing that the touch device can be bent multiple times without affecting the touch characteristics.

Description

Technical Field

[0001] The present invention relates to a touch device, and in particular to a foldable touch device and a foldable touch display device having the touch device. Background Art

[0002] With the advancement of technology, portable electronic products such as smart phones, laptops and tablet computers have widely adopted touch devices as user operation interfaces. With the development of display technology, foldable display modules have been developed. Since the current touch devices have a large bending radius, poor bending resistance, and creases will appear after bending multiple times, affecting their normal use, it is difficult to apply touch devices to foldable display modules. Summary of the invention

[0003] In order to overcome the problems of large bending radius and poor bending resistance of existing touch devices, the present invention provides a foldable touch device with small bending radius and good bending resistance and a foldable touch display device having the touch device.

[0004] To solve the above technical problems, the present invention provides a technical solution as follows: A foldable touch device includes a light-transmitting cover plate and a touch sensing layer. The elastic modulus of the light-transmitting cover plate is between 3 MPa and 10 MPa. The touch sensing layer is covered by the light-transmitting cover plate, wherein the touch sensing layer is foldable.

[0005] Preferably, the stretching ratio of the light-transmitting cover plate is greater than 85%.

[0006] Preferably, the tensile strength of the light-transmitting cover plate is greater than 85 kilograms force per square meter (kgf / m2).

[0007] Preferably, the compression deformation rate of the light-transmitting cover plate is less than 9%.

[0008] Preferably, the elongation rate of the light-transmitting cover plate is greater than 85%, the tensile strength of the light-transmitting cover plate is greater than 85 kilograms force per square meter (kgf / m2), and the compression deformation rate of the light-transmitting cover plate is less than 9%.

[0009] Preferably, the light-transmitting cover plate is made of silicone rubber.

[0010] Preferably, the light-transmitting cover plate comprises an inner surface and an outer surface opposite to each other, the touch sensing layer is located on the inner surface of the light-transmitting cover plate, and the foldable touch device further comprises a functional layer. The functional layer is located on the outer surface of the light-transmitting cover plate. The functional layer has an outer surface away from the light-transmitting cover plate, and the roughness of the outer surface of the functional layer is lower than the roughness of the outer surface of the light-transmitting cover plate.

[0011] Preferably, the functional layer comprises a fluorine-containing hydrocarbon material.

[0012] Preferably, the outer surface of the light-transmitting cover plate comprises silicone rubber.

[0013] Preferably, the foldable touch device further comprises a fluorine-containing hydrocarbon material layer. The transparent cover is covered by the fluorine-containing hydrocarbon material layer, and the transparent cover has a surface adjacent to the fluorine-containing hydrocarbon material layer, and the surface adjacent to the fluorine-containing hydrocarbon material layer is made of silicone rubber.

[0014] Preferably, the light-transmissive cover plate comprises a silicone rubber surface. The touch sensing layer is a display area at least partially attached to the inner surface of the silicone rubber.

[0015] Preferably, the foldable touch device further comprises a light shielding layer which is attached to a non-display area on the inner surface of the silicone rubber, and the non-display area is not attached to the touch sensing layer.

[0016] Preferably, a foldable touch device comprises a silicone rubber material and a touch sensing layer. The touch sensing layer is covered by the silicone rubber material and is foldable.

[0017] Preferably, the touch sensing layer comprises metal grid, silver nanowire, graphene or carbon nanotube.

[0018] Preferably, the thickness of the silicone rubber is between 50 microns and 300 microns.

[0019] Preferably, a foldable touch display device comprises a foldable touch device as described above, a foldable display module and a foldable adhesive layer. The foldable adhesive layer adheres the foldable touch device and the foldable display module.

[0020] Compared with the prior art, the foldable touch device and touch display device provided by the present invention have an elastic modulus of no more than 10 MPa, so the transparent cover plate is easier to bend and produce a larger elastic deformation when it is subjected to the force of being bent. Therefore, this elastic modulus helps the transparent cover plate to be folded. Further, this elastic modulus helps to fold the transparent cover plate into a folded state with a small bending radius. In addition, this elastic modulus also helps to improve the bending resistance of the transparent cover plate. Therefore, when the transparent cover plate with this elastic modulus and the foldable touch sensing layer together form a touch device, the touch device can have good foldable characteristics, which is helpful for application in a foldable display module. In addition, since the elastic modulus of the transparent cover plate is not less than 3 MPa, the transparent cover plate can have a certain hardness to maintain the overall shape of the touch device. That is to say, the elastic modulus between 3 MPa and 10 MPa can achieve the advantages of folding the transparent cover plate into a folded state with a small bending radius, improving the bending resistance of the transparent cover plate, and making the transparent cover plate have sufficient hardness to maintain the overall shape of the touch device.

[0021] The above description is only used to illustrate the problems that can be solved by the present invention, the technical means for solving the problems, and the effects produced, etc. The specific details of the present invention will be introduced in detail in the following implementation methods and related drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a cross-sectional schematic diagram of a foldable touch display device according to an embodiment of the present invention;

[0023] Figure 2 yes Figure 1 A schematic diagram of a foldable touch display device in a folded state is shown;

[0024] Figure 3 is a cross-sectional schematic diagram of a foldable touch display device according to another embodiment of the present invention;

[0025] Figure 4 is a cross-sectional schematic diagram of a foldable touch display device according to another embodiment of the present invention. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] Figure 1 FIG. 1 is a cross-sectional schematic diagram of a foldable touch display device according to an embodiment of the present invention. Figure 1 As shown, the foldable touch display device includes a transparent cover plate 100, a touch sensing layer 200, a light shielding layer 300, a first optical adhesive layer 400 and a foldable display module 500, wherein the transparent cover plate 100, the touch sensing layer 200 and the light shielding layer 300 can be collectively referred to as a foldable touch device. The transparent cover plate 100 can include an inner surface 110 and an outer surface 120. The inner surface 110 and the outer surface 120 are opposite. The outer surface 120 can be used as a touch surface of the user. The touch sensing layer 200 is at least partially disposed in the display area (or visible area) of the inner surface 110, and the light shielding layer 300 is disposed in the non-display area (or non-visible area) on the inner surface 110 to which the touch sensing layer 200 is not attached, so as to shield the opaque wire. The touch sensing layer 200 and the foldable display module 500 are adhered by the first optical adhesive layer 400. In other words, the first optical adhesive layer 400 is sandwiched between the touch sensing layer 200 and the foldable display module 500 , so as to fix the touch sensing layer 200 and the foldable display module 500 by the adhesive ability of the first optical adhesive layer 400 .

[0028] When the transparent cover plate is made of glass or other conventional cover plate materials, the glass is not flexible, so the transparent cover plate cannot be folded together with the foldable display module 500 below. When the transparent cover plate is made of flexible materials such as polyethylene terephthalate (PET), polyimide (PI) or cycloolefin polymer (COP), although such transparent cover plate can be folded together with the foldable display module 500 below, such flexible materials have a large bending radius (for example, the bending radius is greater than 3 mm) and poor bending resistance (for example, the number of bends is difficult to reach more than 100,000 times).

[0029] Therefore, some embodiments of the present invention utilize silicone rubber to form the light-transmitting cover 100. In other words, the light-transmitting cover 100 is made of silicone rubber, and can also be called silicone rubber. Since silicone rubber has a helical molecular structure, its intermolecular force is relatively small, so it can have a lower elastic modulus. For example, the elastic modulus of the light-transmitting cover 100 made of silicone rubber can be between 3 MPa and 10 MPa. In some embodiments, such an elastic modulus can be achieved by adjusting the ratio of the components of silicone rubber (for example, silicon, carbon, hydrogen, and oxygen). Compared to light-transmitting cover plates made of materials such as PET, PI, or COP, the elastic modulus of the light-transmitting cover 100 made of silicone rubber is not greater than 10 MPa, and such an elastic modulus is small enough. Therefore, when the light-transmitting cover 100 is subjected to the force of being bent, it is easier to be bent and produce a larger elastic deformation, and can be smoothly bent into the shape as shown in the figure. Figure 2 The folded state shown. In addition, such an elastic modulus can also help to improve the bending resistance of the light-transmitting cover plate 100. For example, the light-transmitting cover plate 100 with the above elastic modulus can withstand folding two hundred thousand times, so its bending resistance is obviously better than that of the light-transmitting cover plate made of materials such as PET, PI or COP. In addition, the elastic modulus of the light-transmitting cover plate 100 made of silicone rubber is not less than 3 MPa, so the light-transmitting cover plate 100 made of silicone rubber can have a certain hardness to maintain the overall shape of the touch device. In other words, the elastic modulus of silicone rubber not only helps to fold the light-transmitting cover plate 100 into a folded state with a small bending radius and improve the bending resistance of the light-transmitting cover plate 100, but also helps to make the light-transmitting cover plate 100 have sufficient hardness to maintain the overall shape of the touch device.

[0030] In addition, the elastic modulus can also help to fold the light-transmitting cover plate 100 into a folded state with a small bending radius. Figure 2In the opposite state (i.e., the folded transparent cover plate 100 is located inside the foldable display module 500), the bending radius of the transparent cover plate 100 can be as small as 1 mm. Figure 1 The touch display device shown can be folded along the direction of arrow A1 into Figure 2 In the state shown in FIG. 1 (ie, the light-transmitting cover plate 100 is located outside the foldable display module 500), the light-transmitting cover plate 100 can also be folded along the direction of arrow A2 to form a shape similar to the state shown in FIG. Figure 2 The opposite state is shown (ie, the light-transmissive cover plate 100 is located inside the foldable display module 500 ).

[0031] In some embodiments, the stretching rate of the transparent cover plate 100 composed of silicone rubber is greater than 85%. Such a stretching rate helps prevent the transparent cover plate 100 from generating creases, cracks, or even breaks when being bent. In some embodiments, the stretching rate of the transparent cover plate 100 composed of silicone rubber is less than 95%. In some embodiments, such an elastic modulus can be achieved by adjusting the ratio of the components of the silicone rubber (e.g., silicon, carbon, hydrogen, and oxygen).

[0032] In some embodiments, the tensile strength of the light-transmitting cover plate 100 formed of silicone rubber is greater than 85 kilograms of force per square meter (kgf / m2). Such tensile strength helps to increase the bending stress that the light-transmitting cover plate 100 can withstand. In other words, such tensile strength helps to increase the elastic limit of the light-transmitting cover plate 100, so as to help the light-transmitting cover plate 100 maintain elastic deformation during the bending process without causing plastic deformation. In addition, since such tensile strength is conducive to the light-transmitting cover plate 100 maintaining an elastic deformation state during the bending process, the generation of creases can be prevented. In some embodiments, the tensile strength of the light-transmitting cover plate 100 formed of silicone rubber is less than 120 kilograms of force per square meter. In some embodiments, such tensile strength can be achieved by adjusting the proportion of the components of silicone rubber (e.g., silicon, carbon, hydrogen, and oxygen).

[0033] In some embodiments, the compression set of the transparent cover plate 100 composed of silicone rubber is less than 9%. Such compression set helps to improve the resilience of the transparent cover plate 100 and prevent the transparent cover plate 100 from permanent deformation due to long-term or repeated folding. In some embodiments, the compression set of the transparent cover plate 100 composed of silicone rubber is greater than 3%. In some embodiments, such elastic modulus can be achieved by adjusting the ratio of the components of silicone rubber (e.g., silicon, carbon, hydrogen, and oxygen).

[0034] When the elongation rate of the transparent cover plate 100 made of silicone rubber is greater than 85%, the tensile strength is greater than 85 kgf / m2, and the compression permanent deformation rate is less than 9%, the transparent cover plate 100 can be further prevented from generating creases after multiple bending.

[0035] In some embodiments, the thickness of the transparent cover plate 100 formed of silicone rubber is between 50 microns and 300 microns. This thickness helps to improve the light transmittance of the transparent cover plate 100 formed of silicone rubber, and can also reduce the difficulty of manufacturing the transparent cover plate 100. For example, when the transparent cover plate 100 formed of silicone rubber has the above thickness, the light transmittance of the transparent cover plate 100 can be greater than 94%.

[0036] In addition to the above advantages, the use of silicone rubber to form the light-transmitting cover plate 100 also has the following advantages. Since silicone rubber can be used for a long time at 150 degrees Celsius without changes in physical or chemical properties, silicone rubber can be suitable as a cover plate to protect the touch sensing layer 200. In addition, silicone rubber can withstand high temperatures of 200 degrees Celsius to 350 degrees Celsius. Therefore, silicone rubber can withstand high-temperature processes used to make the touch sensing layer 200, such as: sputtering, developing, or etching processes with temperatures between 200 degrees Celsius and 260 degrees Celsius; coating and laser processes with temperatures between 100 degrees Celsius and 200 degrees Celsius. In addition, silicone rubber can also withstand high-temperature processes used to make the light-shielding layer 300, such as printing and baking processes with temperatures between 150 degrees Celsius and 180 degrees Celsius.

[0037] In some embodiments, the viscosity of the silicone rubber is not enough to allow the touch sensing layer 200 to be firmly attached to the silicone rubber. Therefore, the inner surface 110 of the transparent cover plate 100 formed by the silicone rubber may be subjected to a specific treatment (e.g., plasma treatment) to increase the viscosity of the inner surface 110, thereby facilitating the adhesion of the touch sensing layer 200. It can be understood that in some embodiments, the outer surface 120 of the transparent cover plate 100 does not need to be adhered to other components, so the outer surface 120 of the transparent cover plate 100 may not be subjected to the treatment of the inner surface 110, and therefore, the viscosity of the outer surface 120 and the inner surface 110 of the transparent cover plate 100 may be different. For example, the inner surface 110 of the transparent cover plate 100 may be subjected to plasma treatment to increase the viscosity, while the outer surface 120 of the transparent cover plate 100 may not be subjected to plasma treatment, and therefore, the viscosity of the inner surface 110 may be greater than the viscosity of the outer surface 120.

[0038] It is understood that although the above embodiment uses silicone rubber to form the transparent cover plate 100, the material of the transparent cover plate 100 of the present invention is not limited to silicone rubber. In other embodiments, as long as the elastic modulus of the transparent cover plate 100 is between 3 MPa and 10 MPa, the transparent cover plate 100 can also be made of other materials.

[0039] In some embodiments, when the transparent cover plate 100 is made of silicone rubber, the inner surface 110 and the outer surface 120 of the transparent cover plate 100 may also be referred to as the silicone rubber inner surface and the silicone rubber outer surface, respectively. The touch sensing layer 200 is at least partially disposed in the display area of ​​the inner surface of the silicone rubber. The touch sensing layer 200 is foldable to facilitate folding together with the transparent cover plate 100 and the foldable display module 500. Further, the touch sensing layer 200 may include a sensing electrode area 210 and a wiring area 220. The wiring area 220 surrounds the electrode area 210 or is at least located on one side of the electrode area 210. The electrode area 210 is disposed in the display area of ​​the inner surface 110 of the transparent cover plate 100, and the electrode area 210 may include a plurality of sensing electrodes therein. The wiring area 220 is disposed on the light shielding layer 300 in the non-display area of ​​the inner surface 110 of the transparent cover plate 100. The sensing electrodes in the electrode area 210 are foldable. Of course, in some embodiments, the conductive components (such as wires) in the wiring area 220 are also foldable.

[0040] It is known that typical sensing electrodes are made of transparent metal oxides such as indium tin oxide (ITO) or indium zinc oxide (IZO). However, sensing electrodes made of such transparent metal oxides are not foldable. Furthermore, after being folded, the sensing electrodes made of transparent metal oxides may crack or break, thereby losing the functions that the sensing electrodes should have.

[0041] Therefore, in some embodiments, the sensing electrodes of the touch sensing layer 200 are made of flexible conductive materials such as metal mesh, silver nanowire (SNW), graphene or carbon nanotube, rather than transparent metal oxide. Since metal mesh, silver nanowire, graphene and carbon nanotube do not lose their own conductive function after being folded, they help to form foldable sensing electrodes, thereby helping to form a foldable touch sensing layer 200.

[0042] The wiring area 220 is covered by the light shielding layer 300, so when the user views the touch display device from above the outer surface 120, the wiring area 220 can be shielded by the light shielding layer 300. Therefore, it is not necessary to use a light-transmitting component in the wiring area 220. Therefore, in some embodiments, the wiring area 220 may include a plurality of metal wires therein, and the material of the metal wires may be copper or silver, but the present invention is not limited thereto. The sensing electrodes in the electrode area 210 are electrically connected to the metal wires in the wiring area 220, and the metal wires in the wiring area 220 are electrically connected to the circuit board (not shown in the figure). In some embodiments, the wiring area 220 may include conductive materials such as nanosilver, carbon nanotubes, metal meshes, or graphene. Such conductive materials have good bending resistance, so they can facilitate the folding of the wiring area 220. In this way, when the sensing electrodes in the electrode area 210 sense a touch signal, the touch signal can be transmitted to the circuit board through the metal wires in the wiring area 220 , and then transmitted to a processor (not shown) on the circuit board through the circuit board.

[0043] In some embodiments, the light shielding layer 300 is a non-display area disposed on the inner surface 110 of the silicone rubber of the transparent cover plate 100. The non-display area is not attached by the touch sensing layer 200. The light shielding layer 300 may be a dark light shielding layer (such as a black light shielding layer) or a light light shielding layer (such as a white light shielding layer) to shield the metal wires in the wiring area 220 below it. For example, the material of the light shielding layer 300 may be a dark ink (such as black ink) or a light ink (such as white ink). In some embodiments, the light shielding layer 300 may form an annular pattern and occupy the outermost annular area of ​​the inner surface 110 of the transparent cover plate 100, and this annular pattern may surround the electrode area 210 of the touch sensing layer 200.

[0044] In some embodiments, the foldable display module 500 may include an organic light emitting diode (OLED) display panel. For example, the foldable display module 500 may be an active-matrix organic light-emitting diode (AMOLED) display panel. Since the OLED display panel has a foldable feature, it can be used as the foldable display module 500.

[0045] Figure 3 FIG. 4 is a cross-sectional view of a foldable touch display device according to another embodiment of the present invention. Figure 3 As shown, this embodiment is Figure 1The main difference between the foldable touch display devices shown is that the present embodiment includes a functional layer 600. The functional layer 600 is disposed on the outer surface 120 of the transparent cover plate 100. This functional layer 600 can be an anti-fingerprint layer, an explosion-proof layer, an anti-glare layer, a hardening layer, or any combination thereof. In an embodiment in which the transparent cover plate 100 is made of silicone rubber, the material properties of the silicone rubber will cause the surface roughness of the transparent cover plate 100 to be high, resulting in a poor touch of its outer surface 120. In other words, when the outer surface 120 of the transparent cover plate 100 includes silicone rubber, a rough outer surface 120 will be formed.

[0046] Therefore, the functional layer 600 can be used to enhance the tactile sensation of the user when touching the touch display device. In further detail, the functional layer 600 has an outer surface 620 away from the light-transmitting cover plate 100. The roughness of the outer surface 620 of the functional layer 600 is lower than the roughness of the outer surface 120 of the light-transmitting cover plate 100. In this way, when the user touches the outer surface 620 of the functional layer 600, the user can experience a relatively smooth tactile sensation compared to touching the outer surface 120 of the light-transmitting cover plate 100.

[0047] In some embodiments, the functional layer 600 may include a fluorine-containing hydrocarbon material. Such a material helps to form an outer surface 620 with low roughness. In other words, the functional layer 600 can also be called a fluorine-containing hydrocarbon material layer, and the transparent cover plate 100 is covered by this fluorine-containing hydrocarbon material layer. The transparent cover plate 100 has an outer surface 120 adjacent to the fluorine-containing hydrocarbon material layer, and this outer surface 120 is composed of silicone rubber. Thereby, the fluorine-containing hydrocarbon material layer can improve the touch of this touch display device. It can be understood that since the fluorine-containing hydrocarbon material can be used as the material of the anti-fingerprint layer, this functional layer 600 can not only improve the touch, but also serve as an anti-fingerprint layer.

[0048] Figure 4 FIG. 4 is a cross-sectional view of a foldable touch display device according to another embodiment of the present invention. Figure 4As shown, the main difference between this embodiment and the above-mentioned embodiment is that this embodiment has a double-layer touch sensing layer instead of a single-layer touch sensing layer. Further, the foldable touch display device may include a transparent cover plate 100, a first optical adhesive layer 400, a foldable display module 500, a second optical adhesive layer 700, a first touch sensing layer 810, a second touch sensing layer 820 and a transparent plate 900. The first touch sensing layer 810 and the second touch sensing layer 820 are both covered by the transparent cover plate 100, and the first touch sensing layer 810 and the second touch sensing layer 820 are respectively disposed on opposite sides of the transparent plate 900. Further, the transparent plate 900 has a first surface 910 and a second surface 920 opposite to each other. The first surface 910 is a surface of the transparent plate 900 facing the transparent cover plate 100, and the second surface 920 is a surface opposite to the first surface 910. The first touch sensing layer 810 is disposed on the first surface 910 , and the second touch sensing layer 820 is disposed on the second surface 920 . The second optical adhesive layer 700 adheres the transparent cover plate 100 and the first touch sensing layer 810 .

[0049] In order to facilitate the foldability of this touch display device, the light-transmitting plate 900 can be made of silicone rubber. Like the aforementioned light-transmitting cover 100, in some embodiments, the elastic modulus of the light-transmitting plate 900 made of silicone rubber can be between 3 MPa and 10 MPa; in some embodiments, the elongation of the light-transmitting plate 900 made of silicone rubber is greater than 85%; in some embodiments, the tensile strength of the light-transmitting plate 900 made of silicone rubber is greater than 85 kilograms of force per square meter (kgf / m2); in some embodiments, the compression set rate (compression set) of the light-transmitting plate 900 made of silicone rubber is less than 9%. It can be seen that in some embodiments, the light-transmitting cover 100 and the light-transmitting plate 900 can be made of the same material. The advantages brought by the above properties are as stated above, so they are not repeated.

[0050] In some embodiments, the first touch sensing layer 810 and the second touch sensing layer 820 may include metal meshes, silver nanowires, graphene, or carbon nanotubes. The advantages of these materials are as described above, and thus will not be described again.

[0051] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A foldable touch device, comprising: a light-transmitting cover plate, wherein the elastic modulus of the light-transmitting cover plate is between 3 MPa and 10 MPa; and A touch sensing layer is covered by the light-transmitting cover plate, wherein the touch sensing layer is foldable. 2 . The foldable touch device as claimed in claim 1 , wherein the stretchability of the light-transmitting cover is greater than 85%. 3 . The foldable touch device as claimed in claim 1 , wherein the tensile strength of the light-transmitting cover plate is greater than 85 kilograms force per square meter (kgf / m 2 ). 4 . The foldable touch device as claimed in claim 1 , wherein a compression permanent deformation rate of the light-transmitting cover is less than 9%. 5 . The foldable touch device as claimed in claim 1 , wherein the light-transmitting cover is made of silicone rubber.

6. The foldable touch device as claimed in claim 1, wherein the light-transmitting cover comprises an inner surface and an outer surface opposite to each other, the touch sensing layer is disposed on the inner surface of the light-transmitting cover, wherein the foldable touch device further comprises: A functional layer is disposed on the outer surface of the light-transmitting cover plate, wherein the functional layer has an outer surface away from the light-transmitting cover plate, and the roughness of the outer surface of the functional layer is lower than the roughness of the outer surface of the light-transmitting cover plate. 7 . The foldable touch device as claimed in claim 6 , wherein the functional layer comprises a fluorine-containing hydrocarbon material. 8 . The foldable touch device as claimed in claim 6 , wherein an outer surface of the light-transmitting cover plate comprises silicone rubber.

9. The foldable touch device as claimed in claim 1, further comprising: A fluorine-containing hydrocarbon material layer, wherein the transparent cover is covered by the fluorine-containing hydrocarbon material layer, and the transparent cover has a surface adjacent to the fluorine-containing hydrocarbon material layer, and the surface adjacent to the fluorine-containing hydrocarbon material layer is composed of silicone rubber. 10 . The foldable touch device as claimed in claim 1 , wherein the light-transmissive cover comprises a silicone rubber inner surface, and the touch sensing layer is at least partially disposed in a display area of ​​the silicone rubber inner surface.

11. The foldable touch device as claimed in claim 10, further comprising: A light shielding layer is disposed in a non-display area on the inner surface of the silicone rubber, and the non-display area is not adhered by the touch sensing layer.

12. A foldable touch display device, comprising: A foldable touch device as claimed in any one of claims 1 to 11; a foldable display module; and An optical adhesive layer adheres the foldable touch device and the foldable display module.

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