Flexible touch panel

Abstract

The present invention discloses a flexible touch panel, comprising a flexible substrate, a hardened film, a touch sensing component, a routing and a decorative layer. The flexible substrate has a visible area and a peripheral area located at least on one side of the visible area. The hardened film is arranged on the flexible substrate and at least covers the visible area. The touch sensing component is arranged on the flexible substrate and at least in the visible area, and the touch sensing component includes a plurality of first sensing electrodes, wherein the first sensing electrodes and the hardened film are respectively located on opposite sides of the flexible substrate. The routing is arranged on the flexible substrate and located in the peripheral area, and the routing is electrically connected to the touch sensing component. The decorative layer is arranged on the flexible substrate and located in the peripheral area and overlaps with the routing.

Description

Technical Field

[0001] The present invention relates to a flexible touch panel, and in particular to a flexible touch panel with a relatively thin thickness. Background Art

[0002] In recent years, flexible electronic devices have become one of the focuses of the new generation of electronic technology, and the demand for flexible touch panels that can be integrated into flexible electronic devices has also increased. Among them, how to effectively reduce the overall thickness and production cost of flexible touch panels is a key technical issue that needs to be developed and broken through in this field. Summary of the invention

[0003] The technical problem to be solved by the present invention is to reduce the overall thickness and manufacturing cost of the flexible touch panel.

[0004] In order to solve the above technical problems, the present invention provides a flexible touch panel, including a flexible substrate, a hardened film, a touch sensing component, a wiring and a decorative layer. The flexible substrate has a visible area and a peripheral area located on at least one side of the visible area. The hardened film is arranged on the flexible substrate and at least covers the visible area. The touch sensing component is arranged on the flexible substrate and at least arranged in the visible area, and the touch sensing component includes a plurality of first sensing electrodes, wherein the first sensing electrodes and the hardened film are respectively located on opposite sides of the flexible substrate. The wiring is arranged on the flexible substrate and located in the peripheral area, and the wiring is electrically connected to the touch sensing component. The decorative layer is arranged on the flexible substrate and located in the peripheral area and overlaps with the wiring.

[0005] In the flexible touch panel of the present invention, the hardened film and the sensing electrodes are directly formed on both sides of the flexible substrate, and the hardened film replaces the conventional cover plate and omits the use of optical adhesive, thereby reducing the overall thickness and manufacturing cost of the flexible touch panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 FIG. 1 is a cross-sectional schematic diagram of a flexible display device according to a first embodiment of the present invention.

[0007] Figure 2 FIG. 4 is a cross-sectional schematic diagram of a flexible touch panel according to a first embodiment of the present invention.

[0008] Figure 3 FIG. 4 is a cross-sectional schematic diagram of a flexible touch panel according to a second embodiment of the present invention.

[0009] Figure 4 FIG. 4 is a cross-sectional schematic diagram of a flexible touch panel according to a third embodiment of the present invention.

[0010] Figure 5 FIG. 4 is a cross-sectional schematic diagram of a flexible touch panel according to a fourth embodiment of the present invention.

[0011] Figure 6FIG. 4 is a cross-sectional schematic diagram of a flexible touch panel according to a fifth embodiment of the present invention.

[0012] Figure 7 FIG. 4 is a cross-sectional schematic diagram of a flexible touch panel according to a sixth embodiment of the present invention.

[0013] Figure 8 FIG. 4 is a cross-sectional schematic diagram of a flexible touch panel according to a seventh embodiment of the present invention.

[0014] Fig. 9 FIG. 4 is a cross-sectional schematic diagram of a flexible touch panel according to an eighth embodiment of the present invention.

[0015] Fig.10 FIG. 4 is a cross-sectional schematic diagram of a flexible touch panel according to a ninth embodiment of the present invention.

[0016] The reference numerals are described as follows:

[0017] 1 Flexible touch display device

[0018] 10 Flexible touch panel

[0019] 100 Flexible substrate

[0020] 102 Hardening film

[0021] 104 Touch sensor components

[0022] 106 Routing

[0023] 107 Second Route

[0024] 1061, 1071, 1401 Terminal

[0025] 108 Decorative layer

[0026] 110 Viewing area

[0027] 112 Surrounding Area

[0028] 114 First side

[0029] 116 Second side

[0030] 118 first sensing electrode

[0031] 120 second sensing electrode

[0032] 122 Bridge Connection

[0033] 124, 130 First insulation layer

[0034] 126, 132 Second insulation layer

[0035] 128 Buffer layer

[0036] 129 Second buffer layer

[0037] 134 Third insulation layer

[0038] 136 First buffer layer

[0039] 138 Fourth insulation layer

[0040] 140 First Route

[0041] 142 Dummy Electrode

[0042] 144 Fifth insulation layer

[0043] 20 Flexible display panel

[0044] 22 Phase film

[0045] 24 Polarizer

[0046] 30 Optical adhesive

[0047] 40 users DETAILED DESCRIPTION

[0048] In order to enable those skilled in the art to further understand the present invention, the preferred embodiments of the present invention are listed below, and the components and intended effects of the present invention are described in detail with the accompanying drawings. It should be noted that the drawings are simplified schematic diagrams, and therefore, only the components and combination relationships related to the present invention are shown to provide a clearer description of the basic architecture or implementation method of the present invention, while the actual components and layout may be more complex. In addition, for the convenience of explanation, the components shown in the various drawings of the present invention are not drawn in proportion to the actual number, shape, and size, and the detailed proportions can be adjusted according to the design requirements.

[0049] It should be noted that the following embodiments may replace, reorganize, or mix the technical features in several different embodiments to complete other embodiments without departing from the spirit of the present invention or conflicting with it. In addition, although the terms first, second, third, etc. may be used to describe a variety of components, components are not limited to these terms. This term is only used to distinguish a single component from other components in the specification. The same terms may not be used in the claims, but may be replaced by first, second, third, etc. according to the order in which the elements are declared in the claims. Therefore, in the following description, the first component may be the second component in the claims.

[0050] Please refer to Figure 1, which is a cross-sectional schematic diagram of a flexible touch display device according to a first embodiment of the present invention. In this embodiment, a flexible touch display device 1 is used as one example of a flexible electronic device, but the flexible electronic device to which the present invention can be applied is not limited thereto. The flexible touch display device 1 may include a flexible display panel 20, a retardation film 22 and a polarizer 24 disposed on the flexible display panel 20, and also include a flexible touch panel 10 and an optically clear adhesive (OCA) 30 located between the flexible touch panel 10 and the flexible display panel 20 and used to adhere and fix the two. In this embodiment, the flexible display panel 20 may adopt various suitable forms of display panels, for example, the flexible display panel 20 may be a self-luminous or non-self-luminous display panel. The self-luminous display panel may include an organic light emitting diode (OLED) display panel or an inorganic light emitting diode (LED) display panel, but is not limited thereto. For example, in an embodiment using an OLED display panel, a thin film encapsulation (TFE) may be provided between the flexible display panel 20 and the phase film 22 to protect the OLED display panel. The non-self-luminous display panel may include a liquid crystal display panel (LCD), which may use ambient light as a light source (such as a fully reflective LCD), or be used in conjunction with a backlight module as a light source (such as a transmissive LCD), or even simultaneously use ambient light and a backlight module as a light source (such as a semi-transmissive LCD), but is not limited thereto. In addition, in some embodiments, both sides of the flexible display panel 20 may have polarizers. In addition, in the present embodiment, the flexible touch panel 10 may have an OPS (onelayer plastic sensor or one layer plastic solution) structure, and the OPS structure will be described in detail below.

[0051] Please refer to Figure 2 , which is a cross-sectional schematic diagram of a flexible touch panel according to a first embodiment of the present invention. The flexible touch panel 10 of this embodiment has an OPS structure, which includes a flexible substrate 100, a hardened film 102, a touch sensing component 104, a trace 106, and a decorative layer 108. The flexible substrate 100 has a visible area 110 and a peripheral area 112 located on at least one side of the visible area 110. For example, the peripheral area 112 may surround the visible area 110 (not shown). Figure 2), but not limited thereto. The flexible substrate 100 may be, for example, a transparent flexible substrate. For example, the transparent flexible substrate may be, for example, a plastic substrate, and its material may include polyimide (PI) or polyethylene terephthalate (PET), but not limited thereto. The thickness of the flexible substrate 100 may range from 5 microns to 10 microns, but not limited thereto. The flexible substrate 100 includes a first side 114 and a second side 116 relative to the first side 114. The hardened film 102 is disposed on the flexible substrate 100 and on the first side 114 of the flexible substrate 100, and the hardened film 102 at least covers the visible area 110 and may extend to cover the peripheral area 112, but not limited thereto. The material of the hardened film 102 may include a transparent material, such as an acrylic resin, and may include a single-layer structure or a multi-layer composite structure, but not limited thereto. In addition, the thickness of the hardened film 102 may range from 5 microns to 60 microns, and the hardness may be greater than or equal to 4H (hardness unit) to provide protection for the flexible touch panel 10 and maintain flexibility, but the invention is not limited thereto. The heat-resistant range of the hardened film 102 of the present embodiment is, for example, above 120 degrees Celsius and below 170 degrees Celsius, so the hardened film 102 may be formed last in the process of manufacturing the flexible touch panel 10 to prevent the hardened film 102 from being easily brittle due to high temperature.

[0052] The touch sensing component 104 is disposed on the flexible substrate 100 and at least disposed in the visible area 110 . The touch sensing component 104 includes a plurality of first sensing electrodes 118 , a plurality of second sensing electrodes 120 , and a plurality of bridge lines 122 . Figure 2 Only one second sensing electrode 120 and one bridge line 122 are shown for illustration, but in reality the number of second sensing electrodes 120 and bridge lines 122 is not limited to one. Figure 2In the present embodiment, the first sensing electrode 118, the second sensing electrode 120 and the bridge line 122 are disposed on the second side 116 of the flexible substrate 100. In other words, the hardened film 102 and the first sensing electrode 118, the second sensing electrode 120 and the bridge line 122 are respectively located on opposite sides of the flexible substrate 100, but the present invention is not limited thereto. The first sensing electrode 118 and the second sensing electrode 120 may be formed by a first transparent conductive layer, and the bridge line 122 may be formed by a conductive layer. In the present embodiment, the conductive layer is disposed between the flexible substrate 100 and the first transparent conductive layer, but the present invention is not limited thereto. In the present embodiment, the conductive layer may be a second transparent conductive layer, and the first transparent conductive layer and the second transparent conductive layer may include transparent conductive materials, such as indium tin oxide (ITO), indium zinc oxide (IZO), aluminum zinc oxide (AZO), but the present invention is not limited thereto. In other embodiments, the conductive layer used to form the bridge line 122 may include an opaque conductive material. Two adjacent first sensing electrodes 118 among the plurality of first sensing electrodes 118 are electrically connected through one of the plurality of bridge lines 122, wherein the first sensing electrode 118 is electrically isolated from the second sensing electrode 120, and the bridge line 122 is also electrically isolated from the second sensing electrode 120, but the structure of the touch sensing component 104 is not limited to this embodiment. For example, a first insulating layer 124 is disposed between the second sensing electrode 120 and the bridge line 122, so that the bridge line 122 can be electrically isolated from the second sensing electrode 120, and a second insulating layer 126 covers the first sensing electrode 118 and the second sensing electrode 120 and separates the first sensing electrode 118 and the second sensing electrode 120, so that the first sensing electrode 118 and the second sensing electrode 120 are electrically isolated, but the present invention is not limited thereto.

[0053] On the other hand, in this embodiment, a buffer layer 128 may be provided between the flexible substrate 100 and the touch sensing component 104, which may be provided, for example, on a surface of the flexible substrate 100. The material of the buffer layer 128 may include silicon dioxide (SiO2) or niobium pentoxide (Nb2O5), but is not limited thereto. The buffer layer 128 may enhance the chemical resistance of the flexible substrate 100 to protect the flexible substrate 100, or enhance the transmittance or chromaticity of the flexible substrate 100, but is not limited thereto. In some embodiments, it may be selected not to provide the buffer layer 128 in the flexible touch panel 10.

[0054] The trace 106 is disposed on the flexible substrate 100 and is located in the peripheral region 112 , and the trace 106 can be electrically connected to the touch sensing element 104 (eg, Figure 2The wiring 106 of the present embodiment may be, for example, a metal wiring, and may be disposed on the second side 116 of the flexible substrate 100, but is not limited thereto. Figure 2 As shown, the trace 106 may have a terminal portion 1061 , which is not covered by the second insulating layer 126 but is exposed and can be used to electrically connect to bonding pads or circuits of other electronic components (such as flexible printed circuit boards), but is not limited thereto.

[0055] The decoration layer 108 is disposed on the flexible substrate 100 and is located in the peripheral area 112 and overlaps with the trace 106. Figure 2 As shown, the decorative layer 108 of the present embodiment can be disposed on the second side 116 of the flexible substrate 100 and between the hardening film 102 and the trace 106. Specifically, the decorative layer 108 can be disposed between the flexible substrate 100 and the trace 106, but the invention is not limited thereto. In addition, the decorative layer 108 at least partially overlaps with the trace 106, which can reduce the visual disturbance caused by the light reflected by the trace 106 to the user 40 during operation. The material of the decorative layer 108 may include black photoresist or other light-shielding insulating materials, such as black PI, black ink, etc., and may be used in combination with insulating materials of different colors, but the invention is not limited thereto. The decorative layer 108 can be formed by photoresist coating, screen printing, spraying, etc., but the invention is not limited thereto.

[0056] In addition, the hardened film 102 of the present embodiment may also be disposed on the second side 116 of the flexible substrate 100, for example, may cover the second insulating layer 126, and the user 40 is positioned facing the second side 116 of the flexible substrate 100. In this case, the hardened film 102 may at least expose the terminal portion 1061 of the trace 106, so that the touch sensing component 104 may be electrically connected to other electronic components, but the present invention is not limited thereto.

[0057] In conventional flexible touch panels, the touch sensing component is formed on a PI substrate, and a cover plate (such as a glass cover plate or a plastic cover plate) and the touch sensing component are bonded together through optical adhesive. However, in this embodiment, the hardened film 102 and the touch sensing component 104 are directly formed on both sides of the flexible substrate 100, and the hardened film 102 replaces the conventional cover plate and omits the use of optical adhesive, which can reduce the overall thickness and manufacturing cost of the flexible touch panel 10.

[0058] The flexible touch panel of the present invention is not limited to the above-mentioned embodiments. Other embodiments or variations of the present invention will be further disclosed below. However, in order to simplify the description and highlight the differences between the embodiments or variations, the same reference numerals are used below to mark the same components, and the repeated parts will not be repeated.

[0059] Please refer to Figure 3, which is a cross-sectional schematic diagram of a flexible touch panel according to a second embodiment of the present invention. The difference from the first embodiment is that the hardening film 102 and the decorative layer 108 of this embodiment are arranged on the first side 114 of the flexible substrate 100, wherein the decorative layer 108 is arranged on the surface of the first side 114 of the flexible substrate 100, and the touch sensing component 104 and the trace 106 are arranged on the second side 116 of the flexible substrate 100. In addition, the first transparent conductive layer is arranged between the flexible substrate 100 and the second transparent conductive layer, that is, the first sensing electrode 118 and the second sensing electrode 120 are arranged between the bridge line 122 and the flexible substrate 100, but the present invention is not limited thereto.

[0060] Please refer to Figure 4 , which is a cross-sectional schematic diagram of a flexible touch panel according to a third embodiment of the present invention. The difference from the first embodiment is that the first sensing electrode 118 and the second sensing electrode 120 of this embodiment can be formed together on a surface of the buffer layer 128, and the touch sensing component 104 may not have the bridge line and the first insulating layer in the first embodiment, but is not limited thereto. In addition, the material of the wiring 106 of this embodiment may include a transparent conductive material, and the wiring 106 may be formed together with the first sensing electrode 118 and / or the second sensing electrode 120, but is not limited thereto. In addition, the hardening film 102 of this embodiment may also be disposed on the second side 116 of the flexible substrate 100, for example, it may be covered on the second insulating layer 126, and the position of the user 40 is changed to face the second side 116 of the flexible substrate 100. In this case, the hardening film 102 may at least expose the terminal portion 1061 of the wiring 106, so that the touch sensing component 104 can be electrically connected to other electronic components, but is not limited thereto.

[0061] Please refer to Figure 5, which is a cross-sectional schematic diagram of a flexible touch panel according to a fourth embodiment of the present invention. The difference from the third embodiment is that the hardening film 102 and the decorative layer 108 of this embodiment are arranged on the first side 114 of the flexible substrate 100, wherein the decorative layer 108 is embedded in the surface of the first side 114 of the flexible substrate 100, and the first sensing electrode 118, the second sensing electrode 120 and the trace 106 are arranged on the second side 116 of the flexible substrate 100. The manufacturing method can first form the decorative layer 108, such as black PI, on the carrier by photoresist coating, screen printing or spraying, then form a flexible substrate 100, such as PI, on the carrier and cover the decorative layer 108, and then form the required device, such as a touch sensing component, on the flexible substrate 100. Then, the flexible substrate 100 is removed from the carrier, and the hardening film 102 is arranged on the first side 114 of the flexible substrate 100. However, the manufacturing method is not limited to the above, for example, a groove may be first formed on the first side 114 of the flexible substrate 100, and then the decorative layer 108 may be disposed in the groove to form a structure in which the decorative layer 108 is embedded in the surface of the first side 114 of the flexible substrate 100, and then the hardening film 102 is disposed on the first side 114 of the flexible substrate 100. The material of the decorative layer 108 may include black ink, black photoresist or other light-shielding insulating materials in addition to black PI, and may be used in combination with insulating materials of different colors, but is not limited thereto.

[0062] Please refer to Figure 6 , which is a cross-sectional schematic diagram of a flexible touch panel according to a fifth embodiment of the present invention. The difference from the first embodiment is that the first sensing electrode 118 and the second sensing electrode 120 of this embodiment respectively include a metal mesh structure. In other words, the materials of the first sensing electrode 118 and the second sensing electrode 120 of this embodiment may include metal, alloy, conductive oxide, etc., but are not limited thereto. In this embodiment, a first insulating layer 130 and a decorative layer 108 may be disposed on the buffer layer 128 together, wherein the first insulating layer 130 may cover the decorative layer 108. The first sensing electrode 118 may be disposed on the first insulating layer 130, and a second insulating layer 132 may cover the first sensing electrode 118. The second sensing electrode 120 and the trace 106 may be disposed on the second insulating layer 132, and a third insulating layer 134 may cover the second sensing electrode 120 and part of the trace 106 to expose the terminal portion 1061, but are not limited thereto. In short, in the present embodiment, the first sensing electrode 118 may be disposed between the second sensing electrode 120 and the flexible substrate 100, and the first sensing electrode 118 may be electrically isolated from the second sensing electrode 120 by the second insulating layer 132. On the other hand, the first sensing electrode 118 may be one of the transmitting electrode (Tx) and the receiving electrode (Rx), and the second sensing electrode 120 may be the other of the transmitting electrode (Tx) and the receiving electrode (Rx).

[0063] Please refer to Figure 7 , which is a cross-sectional schematic diagram of a flexible touch panel according to a sixth embodiment of the present invention. The difference from the fifth embodiment is that the decorative layer 108 of this embodiment is disposed on the second insulating layer 132 and is covered by the wiring 106. In addition, the hardening film 102 of this embodiment may also be disposed on the second side 116 of the flexible substrate 100, for example, it may be covered on the third insulating layer 134, and the position of the user 40 is changed to face the second side 116 of the flexible substrate 100. In this case, the hardening film 102 may at least expose the terminal portion 1061 of the wiring 106, so that the touch sensing component 104 can be electrically connected to other electronic components, but is not limited thereto.

[0064] Please refer to Figure 8 , which is a cross-sectional schematic diagram of a flexible touch panel according to a seventh embodiment of the present invention. The difference from the first embodiment is that the first sensing electrode 118 and the second sensing electrode 120 are respectively arranged on both sides of the flexible substrate 100. For example, the hardened film 102 and the second sensing electrode 120 can be arranged on the first side 114 of the flexible substrate 100, the second sensing electrode 120 can be located between the hardened film 102 and the flexible substrate 100, a first buffer layer 136 can be arranged between the second sensing electrode 120 and the flexible substrate 100, and a fourth insulating layer 138 can be arranged between the second sensing electrode 120 and the hardened film 102. A first trace 140 may be disposed on the first side 114 of the flexible substrate 100 and located in the peripheral area 112, and the first trace 140 may be electrically connected to the second sensing electrode 120, wherein the first trace 140 may have a terminal portion 1401, and the terminal portion 1401 is not covered by the fourth insulating layer 138 and the hardened film 102 but is exposed, and can be used to electrically connect to the bonding pads or circuits of other electronic components (such as flexible printed circuit boards), but is not limited thereto. In the present embodiment, the terminal portion 1401 of the first trace 140 and the terminal portion 1071 of the second trace 107 may both be electrically connected to other electronic components, but is not limited thereto. In addition, a plurality of dummy electrodes 142 may be disposed on the first side 114 of the flexible substrate 100 and located in the visible area 110. For example, if Figure 8 As shown, three dummy electrodes 142 may be disposed between the second sensing electrode 120 and the first wiring 140, but the present invention is not limited thereto. In addition, the dummy electrode 142 may be electrically isolated from the second sensing electrode 120 and the first wiring 140. In the present embodiment, the materials of the second sensing electrode 120, the dummy electrode 142 and the first wiring 140 may include a transparent conductive material, but the present invention is not limited thereto.

[0065] On the other hand, the first sensing electrode 118, the second trace 107 and the decoration layer 108 may be disposed on the second side 116 of the flexible substrate 100, wherein the decoration layer 108 is located between the flexible substrate 100 and the second trace 107. For example, the first sensing electrode 118 and the decoration layer 108 may be disposed on the second buffer layer 129, and the decoration layer 108 may be covered by the first sensing electrode 118. In addition, the second trace 107 may be disposed on the first sensing electrode 118, and a fifth insulating layer 144 may cover the first sensing electrode 118 and cover a portion of the second trace 107 to expose the terminal portion 1071 of the second trace 107, but the present invention is not limited thereto. In some embodiments, the decoration layer 108 may be disposed on the first sensing electrode 118 and between the first sensing electrode 118 and the second trace 107, but the present invention is not limited thereto. In addition, in some embodiments, the flexible touch panel 10 may have the second buffer layer 129 but not the first buffer layer 136, or may have the first buffer layer 136 but not the second buffer layer 129, or may have neither the second buffer layer 129 nor the first buffer layer 136. The materials or other features of the second trace 107 and the second buffer layer 129 may refer to the trace 106 and the buffer layer 128 in the above embodiment.

[0066] Please refer to Fig. 9 , which is a cross-sectional schematic diagram of the flexible touch panel of the eighth embodiment of the present invention. The difference from the seventh embodiment is that the decorative layer 108 of this embodiment is arranged on the first side 114 of the flexible substrate 100 and is located between the flexible substrate 100 and the hardening film 102. The decorative layer 108 can be arranged on the first buffer layer 136 or on the surface of the first side 114 of the flexible substrate 100, and is covered by the first trace 140, but is not limited to this, and the setting position of the decorative layer 108 can also have the following changes. In some embodiments, the decorative layer 108 can be arranged on the first trace 140 and between the first trace 140 and the fourth insulating layer 138. In some embodiments, the decorative layer 108 can be arranged on the fourth insulating layer 138 and between the fourth insulating layer 138 and the hardening film 102. In some embodiments, the decorative layer 108 is embedded in the surface of the first side 114 of the flexible substrate 100, similar to Figure 5 .

[0067] Please refer to Fig.10, which is a cross-sectional schematic diagram of the flexible touch panel of the ninth embodiment of the present invention. The difference from the seventh embodiment is that the hardening film 102 is arranged on the second side 116 of the flexible substrate 100 and is located on the fifth insulating layer 144, and the position of the user 40 is changed to face the second side 116 of the flexible substrate 100. On the other hand, the second wiring 107 and the decorative layer 108 are arranged on the second side 116 of the flexible substrate 100, and the decorative layer 108 is located between the hardening film 102 and the second wiring 107. For example, the decorative layer 108 can be arranged on the second wiring 107 and covered by the fifth insulating layer 144, but it is not limited to this. In this embodiment (such as Fig.10 ), the second side 116 of the flexible substrate 100 may correspond to the first side in the claims, the first side 114 of the flexible substrate 100 may correspond to the second side in the claims, the second sensing electrode 120 may correspond to the first sensing electrode in the claims, and the first sensing electrode 118 may correspond to the second sensing electrode in the claims.

[0068] In summary, in conventional flexible touch panels, the touch sensing component is formed on a PI substrate, and a cover plate (such as a glass cover plate or a plastic cover plate) and the touch sensing component are bonded together through optical adhesive. However, in the flexible touch panel of the present invention, the hardened film and the sensing electrode are directly formed on both sides of the flexible substrate, and the hardened film replaces the conventional cover plate and omits the use of optical adhesive, which can reduce the overall thickness and manufacturing cost of the flexible touch panel.

[0069] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may be modified and varied in various ways, and the different features between the embodiments may be arbitrarily arranged and combined as long as they do not conflict or violate the spirit of the invention, depending on the design requirements. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A flexible touch panel, characterized in that: include: A flexible substrate having a visible area and a peripheral area located on at least one side of the visible area; a hardened film, disposed on the flexible substrate and covering at least the visible area; A touch sensing component is disposed on the flexible substrate and at least in the visible area, the touch sensing component comprising: A plurality of first sensing electrodes, wherein the plurality of first sensing electrodes and the hardened film are respectively located on opposite sides of the flexible substrate; a wiring line, disposed on the flexible substrate and located in the peripheral area, and the wiring line is electrically connected to the touch sensing component; and A decorative layer is disposed on the flexible substrate and is located in the peripheral area and overlaps with the trace; wherein the flexible substrate includes a first side and a second side relative to the first side, the hardening film and the decorative layer are disposed on the first side of the flexible substrate, and the plurality of first sensing electrodes and the trace are disposed on the second side of the flexible substrate.

2. The flexible touch panel according to claim 1, characterized in that: The decoration layer is disposed on a surface of the first side of the flexible substrate or embedded in the surface of the first side of the flexible substrate.

3. The flexible touch panel according to claim 1 or 2, characterized in that: The touch sensing assembly further includes a plurality of second sensing electrodes disposed on the second side of the flexible substrate, and the plurality of first sensing electrodes are electrically isolated from the plurality of second sensing electrodes.

4. The flexible touch panel according to claim 1 or 2, characterized in that: The touch sensing component further includes a plurality of second sensing electrodes and a plurality of bridge wires, wherein the plurality of second sensing electrodes and the bridge wires are arranged on the second side of the flexible substrate. The plurality of first sensing electrodes and the plurality of second sensing electrodes are formed by a transparent conductive layer, and the plurality of bridge lines are formed by a conductive layer, and Two adjacent first sensing electrodes among the plurality of first sensing electrodes are electrically connected through one of the plurality of bridge lines, the plurality of first sensing electrodes are electrically isolated from the plurality of second sensing electrodes, and the plurality of bridge lines are electrically isolated from the plurality of second sensing electrodes.

5. The flexible touch panel according to claim 4, characterized in that: The conductive layer is disposed between the flexible substrate and the transparent conductive layer, or the transparent conductive layer is disposed between the flexible substrate and the conductive layer.

6. The flexible touch panel according to claim 1 or 2, characterized in that: The touch sensing component also includes a plurality of second sensing electrodes arranged on the second side of the flexible substrate, the plurality of first sensing electrodes are arranged between the plurality of second sensing electrodes and the flexible substrate, the plurality of first sensing electrodes are electrically isolated from the plurality of second sensing electrodes, and the plurality of first sensing electrodes and the plurality of second sensing electrodes respectively include a metal grid structure.

7. The flexible touch panel according to claim 1, wherein: The touch sensing component further includes a plurality of second sensing electrodes, which are disposed on the first side of the flexible substrate and are located between the hardened film and the flexible substrate.

8. The flexible touch panel according to claim 7, characterized in that: The decoration layer is disposed on a surface of the first side of the flexible substrate or embedded in the surface of the first side of the flexible substrate.

9. The flexible touch panel according to claim 1, wherein: A buffer layer is also included and is arranged on a surface of the flexible substrate.

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