TWM346864U - Touch panel - Google Patents

Abstract

A touch panel including a flexible sheet, a first transparent substrate, a pad and a second conductive film is provided. The first transparent substrate is disposed on one side of the flexible sheet in parallel. The first transparent substrate has a first conductive film thereon. The area of the flexible sheet is larger than that of the first transparent substrate. The pad is disposed on the same side of the flexible sheet as the first transparent substrate being disposed. The second conductive film is disposed between the flexible sheet and the first transparent substrate. The first conductive film of the first transparent substrate is adhered to the second conductive film via a first adhesion layer. The pad is adhered to the second conductive film via a second adhesion layer.

Description

M346864 VII. Designated representative map: , 2 digging positive! m^u (1) The representative representative picture of this case is: 2nd picture (2) The symbol of the representative figure is simple: 100 · Touch panel 110: flexible film Sheet 110a: first through hole 120: bonding layer 130: first transparent substrate 131: first conductive film 151: first adhesive layer 152. brother-adhesive layer 180: lining 190: second transparent substrate 191: second Conductive film Eight, new description: [New technical field] This creation is related to a touch panel, and in particular to a touch panel that can improve process convenience. [Prior Art] With the development of flat panel display technology, the flat display has made great progress. Furthermore, due to the obvious effect of the process technology I, 5 progress, drive the plane

The cost of the M346864 display has dropped, making flat-panel displays popular with consumers in the market. In order to improve the convenience of use, in recent years, the industry has integrated touch panels into flat-panel displays and applied them to various electronic devices; for example, in mobile phones, users can click on the panel directly. In order to carry out various operations, thereby providing a more convenient and user-friendly operation mode. Among the various types of touch panels, resistive touch panels are more common. This is because the resistive touch panel has a low manufacturing cost and is compatible with the size of the terminal product, so it can be widely used in electronic products. For the structure of the resistive touch panel, the upper substrate, the lower substrate and the double-sided adhesive layer are mainly included. An upper conductive film is disposed on a surface of one of the upper substrates. A surface of one of the lower substrates is provided with a lower conductive film. A bonding layer (such as double-sided tape or polymer polymer) is used to fit the upper and lower substrates. In general, in order to increase the aesthetic value and commercial value of the touch panel, a layer of adhesive layer (such as optical glue or polymer glue) is applied to the surface of the upper substrate, and the flexible film is connected with each other. Therefore, the touch panel and the flexible diaphragm must have the same shape and size. Patent TMW320710 refers to an improved touch panel structure comprising a transparent flexible touch film, an upper conductive film, a lower conductive film, a transparent substrate, a planar decorative layer and a surface coating. The upper conductive film is disposed on a transparent flexible touch film, and the lower conductive film is disposed on a flexible substrate. It is known from the prior art that a general lens affects its optical characteristics due to the thickness of the substrate. Polycarbonate is generally used as the material of the lower substrate, and must be used as the position of the lens. Although it is easy to process, its light transmittance is not good; 6

M346864 If the lower substrate is changed to glass, its light transmittance is good, but the processing is not easy. Both of them are easy to damage the conductive film on the surface during processing, reducing the yield of the production process. When the touch panel is applied to electronic devices of different specifications, it is necessary to change the position on the lower substrate from which the through holes for arranging the lens and the like are cut, and the size of the lower substrate is correspondingly changed. This is quite costly and reduces the efficiency of the process. [New content] The present invention provides a touch panel which uses a lining and a first transparent substrate so that the first transparent substrate does not need to be changed in size and shape, and the touch panel can be applied to different specifications. In the product. According to the present invention, a touch panel is provided, comprising a flexible film, a first transparent substrate, a liner and a second conductive film. The first transparent substrate is disposed in parallel on one side of the flexible film, and one surface of the first transparent substrate has a first conductive film. The area of the flexible diaphragm is larger than the area of the first transparent substrate. The lining is disposed on the side of the flexible film that is identical to the first transparent substrate. The second conductive film is disposed between the flexible film and the first transparent substrate. The first conductive film of the first transparent substrate is attached to the second conductive film via a first adhesive layer. The lining is attached to the second electrically conductive film via a second adhesive layer. In order to make the above objects, features, and advantages of the present invention more comprehensible, the preferred embodiments will be described below in detail with reference to the accompanying drawings. 7 07.10. 2 4# π: ^丨 丄 — — — — — — — — — — — — — — — — — — — — — — — # # # # # # # # # # # # # # # # # # # # # # # # The method of the substrate is matched to enable the first-transparent substrate of the same size to be applied to products of different specifications, thereby improving the application flexibility of the touch panel. The following is a detailed description of the preferred embodiment of the present invention, and the implementation of the secret is used as an example H and does not limit the scope of the creative protection. In addition, the drawings in the embodiments omit unnecessary elements to clearly show the technical features of the present creation. The first and second figures of the same day are shown in FIG. 1 , which is a schematic view of a touch panel according to a preferred embodiment of the present invention; and FIG. 2 is a perspective view of the touch panel in (10). The touch panel 100 includes a flexiMe sheet 110, a first transparent substrate 13A, a liner 18A, and a second conductive film 191. The first transparent substrate 13 is disposed in parallel on one side of the flexible film 11A, and one surface of the first transparent substrate 130 has a first conductive film 131. The area of the flexible diaphragm 110 is larger than the area of the first transparent substrate 13 (). The lining 180 is disposed on the side of the flexible film 11 〇 identical to the first transparent substrate 130. The second conductive film 191 is disposed between the flexible film 11 () and the first transparent substrate 130. The first conductive film 131 of the first transparent substrate 13 is attached to the second conductive film 191 via a first adhesive layer 151, and the liner 180 is attached to the second conductive film 191 via a bonding layer 152. More specifically, the first adhesive layer 151 is located between the first conductive film 131 and the second conductive film 191, and the second adhesive layer 152 is located between the lining 180 and the second conductive film 191. 8

Further, the touch panel of the present embodiment further includes a second transparent substrate 190 disposed between the flexible film 110 and the second conductive film 191. The second conductive film 191 is formed, for example, on the second transparent substrate 190. Furthermore, the second transparent substrate 190 is attached to the flexible film 110 via a bonding layer 120. In practice, the bonding layer 120 can be, for example, a double-sided adhesive, a polymeric adhesive or an optical adhesive. In this embodiment, the area of the flexible film 110 is uniform with the second transparent substrate 190 and larger than the area of the first transparent substrate 130. In addition, the first conductive film 131 and the second conductive film 191 are disposed opposite to each other with a plurality of spacers (not shown) to be disposed opposite to each other. In a preferred embodiment, the materials of the first transparent substrate 130 and the second transparent substrate 190 are respectively glass, which can improve the light transmittance of the entire touch panel 1 . However, the materials of the first transparent substrate 130 and the second transparent substrate 190 are not limited thereto, and the material thereof may also be polycarbonate (Poly-Carbonate; PC)-polyethylene terephthalate (Poly_Ethylene Teraphthalate; PET) or other conventional light-transmitting materials. The material of the flexible film 110 is a light transmissive material such as polyethylene terephthalate or other flexible light transmissive material. The surface of the flexible film H0 is coated with an opaque coating llb, which partially covers only the surface of the flexible film 110. The flexible film 110 forms a light-transmissive region 110c corresponding to the uncovered opaque coating layer 〇b, and the light-transmitting region 110c substantially corresponds to the first transparent substrate 130 for at least partially exposing the portion A light transmissive substrate 130 is as shown in FIG. In addition, the first adhesive layer 151 and the second adhesive layer 152 may be the same or different materials, and the M346864 application ^ 'the first adhesive layer 151 and the second adhesive layer 152 may respectively be a rubber glue or a knife or a double glue. Face glue. In one embodiment, the two layers 151 and the second adhesive layer 152 may be the same material layer. Further, the conductive film 131 and the second conductive film 191 are formed on the first transparent substrate (10) and the first moon-transparent substrate 190, for example, by means of a trap and a strip. The second conductive film 191 preferably has the same shape and area as the flexible film 110.

In one embodiment, the second conductive film 191 can be formed directly on the lower surface of the flexible film 11G. Please refer to the third _, which shows a schematic diagram of the second conductive film directly formed under the flexible film. The opaque layer n〇b is placed on the upper surface of the flexible diaphragm 110. Further, the upper surface of the flexible film 11 is further plated with a protective layer (e.g., Si〇2). The first substrate and the lining I80 are respectively attached to the flexible film UG by the first adhesive layer 151 and the second adhesive layer 152, thereby eliminating the need to provide the second transparent substrate 190 and the bonding layer 120. The thickness of the touch panel can be reduced. In another embodiment, the opaque layer 11b can also be disposed on the lower surface of the flexible film 110, and further disposed with an insulating layer (not shown) in the opaque layer 〇 Below b, the metal particles for providing flatness and blocking the opaque layer 11b are prevented from affecting the electrical properties of the second conductive film ι91. Referring to FIG. 1, in the present embodiment, the area of the flexible diaphragm 110 is substantially equal to the area of the first transparent substrate 130 and larger than the area of the second transparent substrate 190. The lining 18 is made of, for example, a polycarbonate material or a p〇ly-Ethylene Teraphthalate (PET) or other easily processed material. Hereinafter, the flexible film 110, the first transparent film, the substrate 130, and the lining plate 180 will be described as an example. Please refer to FIG. 2 is a schematic view showing a flexible film, a first transparent substrate, and a liner. The first transparent substrate 130 and the lining sheet 180 are disposed on the same side of the flexible film 110, and are preferably opposite to the flexible film 11 ().

One side of the opaque coating 110b. In addition, the flexible film 11 〇 has, for example, at least one first through hole 110a located on the flexible film 110 corresponding to the lining 180; correspondingly, the lining 180 has At least one second through hole 180a corresponds to the number, shape and position of the first through holes 110a. In practical applications, when the touch panel 1 is used, for example, in a mobile phone, the first through hole 〇a and the second through hole igOa have functions of exposing components such as a handset or a video camera of the mobile phone. In the process of the touch panel 100, only the first through hole 110a and the second through hole 180a are cut out on the lining 18, and the first transparent substrate 13 can be maintained.

The size, shape, and goodness of the conductive film disposed on the surface thereof, thereby reducing the process cost and improving the process efficiency without degrading the optical characteristics of the optical lens. According to the touch panel 100 of the preferred embodiment of the present invention, the lining 180 is exemplified by the configuration of the first transparent substrate 130; however, the arrangement of the lining 180 and the first transparent substrate 130 is not limited to Therefore, it can be changed according to the design requirements of different products. For example, the lining 18 〇 can also be disposed around the first transparent substrate 130 . Hereinafter, the first transparent substrate 130 and the outline 180 will be described as an example. Please refer to Fig. $, which is a schematic view showing the arrangement of the lining around the first transparent substrate. The first transparent substrate 130 and the spacer 180' are disposed on the same side as the flexible diaphragm u〇, M346864

And the lining 180' surrounds the first transparent substrate 130. In addition, the surface of the flexible film 110' is not covered by the opaque coating 11 Ob', and substantially corresponds to the first transparent substrate 130, and is used to at least expose the first portion. Transparent substrate 130. The flexible diaphragm 110 has at least one first through hole 110a' located on the flexible diaphragm 11'' corresponding to the outer portion of the light transmitting portion n〇c. The lining 180' has at least one second through hole 180a corresponding to the number, shape and position of the first through holes 110a'. That is, it is not necessary to cut the through holes on the first transparent substrate 130 during the manufacturing process. • Further, please refer to FIG. 4 and FIG. 5 simultaneously. Under the condition that the same first transparent substrate 130 is applied, only the area of the flexible films 110 and 110', the linings 180 and 180 need to be changed correspondingly. The configuration of the transparent regions 110c and 110c', so that the conductive silver paste (not shown) disposed on the edge of the upper surface of the first transparent substrate 13 does not expose the light. In the areas ll〇c and 110c', the touch panel 1 can be applied to electronic devices of different specifications. Therefore, the shape of the first φ transparent substrate 13 is not required to be changed, and the through hole is not required to be cut on the first transparent substrate 130, so that the first conductive film 131 on the first transparent substrate 13 can be avoided. (shown in Figure 2) The problem of damage. The step of forming the first conductive film 131 (e.g., sputtering or evaporation) can be performed on a large-sized transparent substrate before cutting, which improves the efficiency of the process. According to the touch panel of the preferred embodiment of the present invention, the first through hole on the flexible film and the second through hole on the lining expose the components under the touch panel, and the first transparent substrate is not required. Cutting is done to simplify the shifting complexity and increase process efficiency. In addition, by changing the flexibility of 12 |97· ιυ· 'M346864 丨t, 'the size of the patch and the arrangement of the linings, the touch panel can be applied to products of different specifications, further Significantly increase the application flexibility of the touch panel, and save man hours and costs. Furthermore, by directly forming the second conductive film on the flexible film, the thickness of the second transparent substrate and the bonding layer can be reduced to achieve a thin design of the touch panel. In summary, although the present invention has been disclosed above in the preferred embodiments, it is not intended to limit the present invention. Those who have a general knowledge in the technical field of this creation can make various changes and refinements of the various ® without departing from the spirit and scope of the creation. Therefore, the scope of protection of this creation is subject to the definition of the scope of the patent application.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of a touch panel according to a preferred embodiment of the present invention, and FIG. 2 is a perspective view of the touch panel of FIG. 1; FIG. 3 is a second conductive film formed directly Figure 4 is a schematic view of the flexible film, Figure 4 is a schematic view of the flexible film, the second light-transmissive substrate and the lining of Figure 2, and Figure 5 shows the lining around the second light-transmitting Schematic diagram of the substrate configuration. [Main component symbol description] 100, 100': touch panel 110, 110': flexible diaphragm 110a, 110a': first through hole 110b, 110b': opaque layer 110c, 110c': light transmitting area 120: bonding layer 130: first transparent substrate 131: first conductive film 151: first adhesive layer 152: second adhesive layer 180, 180': lining 180a, 180a': second through hole 190: second Transmissive substrate 191 : second conductive film 14

Claims (1)

Ίδ. 2 M346864 IX. Patent Application Range: 1. A touch panel comprising: a flexible sheet; a first transparent substrate disposed in parallel on one side of the flexible diaphragm, One surface of the first transparent substrate has a first conductive film, the area of the flexible film is larger than the area of the first transparent substrate; a pad disposed on the flexible film is the same as the first a side of a transparent substrate; and a first conductive film disposed between the flexible film and the first transparent substrate; wherein the first conductive film of the first transparent substrate is via a first The adhesive layer is attached to the second conductive film, and the lining is attached to the second conductive film via a second adhesive layer. The touch panel of claim 1, further comprising: a second transparent substrate disposed between the flexible film and the second conductive p film. 3. The touch panel of claim 2, wherein the second transparent substrate is attached to the flexible film via a bonding layer. The touch panel of claim 3, wherein the bonding layer is an optical glue, a double-sided tape or a polymer glue. 5. The touch panel of claim 2, wherein the second transparent substrate is made of glass, polycarbonate (Poly-Carbonate; PC) or polyethylene terephthalate (p〇ly_Ethylene Teraphthalate) The touch panel of the first aspect of the invention, wherein the first transparent substrate is made of glass, polycarbonate (Poly-Carbonate; PC) or ethylene-on-p-phenylene. P0ly_Ethylene Teraphthalate (PET). The touch panel of claim 1, wherein the lining is coupled to the first transparent substrate. 8. Please ask for the scope of patents! The touch panel of claim 1, wherein the image is surrounding the first transparent substrate. 9·If Shen Qing patent scope is the first! The flexible diaphragm described in the item has a lure, come? Pole /, A mouth can be seen at the substrate. The light-transmissive area substantially corresponds to the touch panel of the first embodiment, wherein the material is polycarbonate, polyethylene terephthalate. The touch panel of the first aspect of the patent, wherein the material of the cymbal is polyethylene terephthalate. The first touch panel of the first item, wherein the first adhesive layer of the ^ g and ^hai is the same material. The touch panel of claim 1, wherein the occupant layer and the second adhesive cymbal 14 are the same material layer. The touch panel of the first aspect of the adhesive layer, wherein the ^ is a drop-off glue, a double-sided tape or a polymer glue. In the touch panel of the first aspect of the patent, in the case of i, the area of the conductive body is equal to that of the flexible film. The touch panel as described in claim 1 of the patent scope further includes: |^.10.2 A plurality of spacers are disposed between the first conductive film and the second conductive film such that the first conductive film and the second conductive film have a space. 17 M346864 VII. Designated representative map: , 2 digging positive! m^u (1) The representative representative picture of this case is: 2nd figure (2) The symbol of the representative figure is simple: 100 · Touch panel 110: flexible The film 110a: the first through hole 120: the bonding layer 130: the first transparent substrate 131: the first conductive film 151: the first adhesive layer 152. the first adhesive layer 180: the lining 190: the second transparent substrate 191: the first Second conductive film Eight, new description: [New technical field] This creation is related to a touch panel, and in particular to a touch panel that can improve process convenience. [Prior Art] With the development of flat panel display technology, the flat display has made great progress. Furthermore, due to the obvious effect of the process technology I, 5 progress, drive the plane