Touch film structure and touch screen

By setting a compensation area in the conductive layer, the difference in optical performance of the conductive layer is reduced, and the problem of chromatic aberration of the surface of the capacitive touch screen is solved and the user experience is improved.

CN111399690BActive Publication Date: 2025-03-28WUXI MESH TECH CO LTD
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Patent Information

Application Number
CN202010339044.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-04-26
Publication Date
2025-03-28
Estimated Expiration
2040-04-26

AI Technical Summary

Technical Problem

There is a chromatic difference on the surface of existing capacitive touch screens, especially under special lights or anti-reflective glass, which makes the chromatic difference more obvious, affecting the user experience.

Method used

By providing a compensation area in the conductive layer, including a compensation block insulated from the conductive electrode, the difference in optical properties such as light transmittance, refractive index and reflectance of the conductive layer is reduced, thereby reducing the chromatic difference between the touch film layer structure and the touch screen surface.

Benefits of technology

It effectively reduces the color difference between the touch film layer structure and the touch screen surface, and improves the user experience.

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Abstract

The present application provides a touch film layer structure, comprising: at least one conductive layer, the conductive layer comprising at least one conductive electrode and a compensation region located around the conductive electrode; wherein the compensation region comprises one or more compensation blocks insulated from the conductive electrode. By providing the compensation region comprising the one or more compensation blocks, the difference in optical properties such as transmittance, reflectivity and refractive index of the conductive layer is reduced, thereby reducing the color difference on the surface of the touch film layer structure and improving the user experience.
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Description

Technical Field

[0001] The present application relates to the technical field of touch screens, and in particular to a touch film layer structure and a touch screen. Background Art

[0002] At present, capacitive touch screens include a protective layer and a conductive layer. The conductive pattern of the conductive layer is formed by coating a layer of indium tin oxide (ITO) on the glass and then photolithography the ITO layer. Since the ITO layer forms a hollow area after photolithography, there are differences in optical properties such as transmittance, refractive index and reflectivity between the hollow area and the ITO area, which leads to color difference on the surface of the capacitive touch screen. Under special lights or anti-reflective glass with different wavelengths or different angles, the color difference on the surface of the capacitive touch screen will be more obvious, affecting the user experience. Summary of the invention

[0003] In view of this, the embodiments of the present application are committed to providing a touch film layer structure and a touch screen to solve the problem of color difference on the surface of the capacitive touch screen in the prior art. When viewing the capacitive touch screen under special lighting or anti-reflective glass, the color difference will be more obvious, affecting the user experience.

[0004] According to one aspect of the present application, an embodiment of the present application provides a touch film layer structure, comprising: at least one conductive layer, the conductive layer comprising at least one conductive electrode and a compensation area located around the conductive electrode; wherein the compensation area comprises one or more compensation blocks insulated from the conductive electrode.

[0005] In one embodiment, the compensation block includes a regular compensation block and / or an irregular compensation block.

[0006] In one embodiment, the plurality of compensation blocks are arranged in an array or randomly.

[0007] In one embodiment, the material of the compensation block is the same as the conductive material of the conductive electrode.

[0008] In one embodiment, the conductive electrode comprises: a plurality of electrode blocks; and at least one connecting portion, wherein the connecting portion is used to connect two adjacent electrode blocks.

[0009] In one embodiment, the boundary of the electrode block includes an irregular boundary consisting of at least one of a straight line, a broken line and a curved line.

[0010] In one embodiment, the boundary of the electrode block includes one or a combination of two of the following shapes: a sawtooth shape and a wave shape.

[0011] In one embodiment, the at least one connecting portion comprises a hollow structure.

[0012] In one embodiment, the at least one conductive layer includes: a first conductive layer; and a second conductive layer; wherein the first conductive layer and the second conductive layer are spaced apart, and projections of a connecting portion of the first conductive layer and a connecting portion of the second conductive layer on a plane parallel to the first conductive layer overlap.

[0013] According to another aspect of the present application, an embodiment of the present application provides a touch screen, including: the touch film layer structure described in any of the above embodiments; a touch chip connected to the conductive electrode of the touch film layer structure; and a display screen bonded to the touch film layer structure.

[0014] The present application provides a touch film layer structure and a touch screen, which reduces the color difference of the touch film layer structure and the touch screen surface by setting a compensation area including one or more compensation blocks insulated from the conductive electrode, and reduces the difference in optical properties such as transmittance, refractive index and reflectivity of the conductive layer by using one or more compensation blocks insulated from the conductive electrode, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1A FIG. 1 is a schematic diagram of a touch film structure provided in an embodiment of the present application.

[0016] Figure 1B FIG. 1 is a schematic diagram of a partial structure I of a touch film layer provided in one embodiment of the present application.

[0017] Figure 2 FIG. 1 is a schematic diagram of a touch film layer structure portion I provided in another embodiment of the present application.

[0018] Figure 3 FIG. 1 is a schematic diagram of a touch film layer structure portion I provided in another embodiment of the present application.

[0019] Figure 4 FIG. 1 is a schematic diagram of a touch film layer structure portion I provided in another embodiment of the present application.

[0020] Figure 5 FIG. 1 is a schematic diagram of a touch film layer structure portion I provided in another embodiment of the present application.

[0021] Figure 6 FIG. 1 is a schematic diagram of a partial II of a touch film layer structure provided by another embodiment of the present application.

[0022] Figure 7 FIG. 1 is a schematic diagram of a partial II of a touch film layer structure provided by another embodiment of the present application.

[0023] Figure 8FIG. 4 is a schematic diagram of a touch film structure provided by another embodiment of the present application.

[0024] Fig. 9 FIG. 1 is a schematic diagram of a partial structure of a touch film layer provided in another embodiment of the present application.

[0025] Fig.10 FIG. 4 is a schematic diagram of a touch film structure provided by another embodiment of the present application.

[0026] Fig.11 Shown is a structural schematic diagram of a touch screen provided in an embodiment of the present application. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0028] In various drawings of the present application, for the convenience of illustration, some sizes of structures or parts are exaggerated relative to other structures or parts, and thus, are only used to illustrate the basic structure of the subject matter of the present application.

[0029] In addition, the terms indicating spatial relative positions such as “upper” and “lower” used herein are for the purpose of convenience of explanation to describe the relationship of one element or feature relative to another element or feature as shown in the drawings.

[0030] Figure 1A FIG. 1 is a schematic diagram of a touch film structure provided in an embodiment of the present application. Figure 1B FIG. 1 is a schematic diagram of a touch film structure portion I provided by an embodiment of the present application. Figure 1A and Figure 1B As shown, the touch film layer structure provided in the embodiment of the present application includes: at least one conductive layer 10, the conductive layer 10 includes at least one conductive electrode 110 and a compensation area 120 located around the conductive electrode 110; wherein the compensation area 120 includes one or more compensation blocks 1201 insulated from the conductive electrode 110. By providing the compensation area 120 including one or more compensation blocks 1201, the difference in optical properties such as transmittance, reflectivity and refractive index between the electrode area of ​​the conductive layer 10 and other non-electrode areas (equivalent to the compensation area of ​​the present application) is reduced, thereby reducing the color difference of the touch film layer structure and improving the user experience.

[0031] In one embodiment, the conductive electrode 110 can be used as a driving electrode Tx along the X direction, and together with the receiving electrode Rx in the other conductive part along the Y direction, form a touch sensing device based on mutual capacitance; wherein the X direction and the Y direction are perpendicular to each other, the receiving electrode Rx in the other conductive part can be an electrode of the same material and shape as the conductive electrode 110, and the conductive layer 10 and the other conductive structure are arranged at intervals. The driving electrode Tx and the receiving electrode Rx are used to locate the touch point. When the human body touches the screen, the capacitive coupling between the driving electrode Tx and the receiving electrode Rx is disturbed, and the touch position is determined by monitoring the degree of interference of the capacitive coupling between the driving electrode Tx and the receiving electrode Rx.

[0032] Specifically, when the compensation area 120 including the compensation block 1201 is not provided, there are differences in optical properties such as transmittance, refractive index and reflectivity between the area where the conductive electrode 110 is located and the area without the conductive electrode in the conductive layer 10, thereby causing color difference in the entire touch film layer structure. The present application provides a compensation area 120 including the compensation block 1201, and uses the compensation block to reduce the difference in optical properties such as transmittance, refractive index and reflectivity of the conductive layer 10, thereby reducing the color difference of the touch film layer and improving the user experience.

[0033] In one embodiment, the material of the one or more compensation blocks 1201 is the same as that of the conductive electrode 110. Since the same material has the same properties, such as the same transmittance, refractive index and reflectivity, when light is irradiated onto the conductive layer 10, the one or more compensation blocks 1201 made of the same material as that of the conductive electrode 110 can effectively reduce the color difference between the conductive electrode 110 and the compensation area 120, further improving the user experience.

[0034] Specifically, the material of the conductive electrode 110 can be ITO, which has excellent conductivity and high transparency. Using ITO as the material of the conductive electrode 110 can not only realize its conductive function, but also improve the visual effect when the touch film layer structure is used in conjunction with the display screen. The material of one or more compensation blocks 1201 can also be ITO, which can not only reduce the color difference between the conductive electrode 110 and the compensation area 120 with the compensation blocks 1201, but also can be manufactured together with the conductive electrode 110 and one or more compensation blocks 1201 when manufacturing the conductive layer 10, thereby simplifying the process.

[0035] It should be understood that the material of the conductive electrode 110 and one or more compensation blocks 1201 can be selected according to different application requirements, as long as it is a transparent conductive material. This application does not specifically limit the material of the conductive electrode 110 and one or more compensation blocks 1201.

[0036] Figure 2FIG. 1 is a schematic diagram of a touch film structure part I provided by another embodiment of the present application. Figure 2 As shown, compared to Figure 1B In the touch film structure shown in FIG. 1 , the compensation block 1201 includes a regular compensation block and / or an irregular compensation block. A regular compensation block may be a compensation block with a boundary of an isosceles triangle, a regular polygon or a circle. An irregular compensation block may be Figure 2 The illustrated boundary includes a compensation block of a closed figure formed by connecting a plurality of straight lines and a plurality of curves. By making the compensation block 1201 include regular compensation blocks and / or irregular compensation blocks, gaps of different widths can be formed between adjacent compensation blocks 1201 and / or between the conductive electrode 110 and the compensation block 1201, thereby reducing chromatic aberration and diffraction fringes caused by diffracted light.

[0037] Specifically, when light passes through a gap of fixed width, it forms alternating light and dark stripes, which means that diffraction occurs. Figure 2 Gaps of different widths can be formed between adjacent compensation blocks 1201 and / or between the conductive electrode 110 and the compensation block 1201. When light is irradiated onto the conductive layer 10, the light will pass through the gaps of different widths. The diffraction lights generated by the gaps of different widths observed at the same angle can be superimposed and canceled, thereby reducing the chromatic aberration and diffraction fringes caused by the diffraction light.

[0038] It should be understood that the boundary of the compensation block 1201 can be a closed figure composed of multiple straight lines connected in sequence, a closed figure composed of a curved line, a closed figure composed of multiple straight lines and a curved line, or a closed figure composed of multiple straight lines and multiple curved lines, as long as a gap of different widths can be formed between adjacent compensation blocks 1201 and / or between the conductive electrode 110 and the compensation block 1201.

[0039] In addition, in this embodiment, the shapes of multiple compensation blocks in the compensation area can be completely the same, partially the same, or different; for example, the shape of each compensation block can be configured by a random algorithm to further ensure the differentiation of the gaps between adjacent compensation blocks.

[0040] Figure 3 FIG. 1 is a schematic diagram of a touch film structure part I provided by another embodiment of the present application. Figure 3 As shown, compared to Figure 2In the touch film layer structure shown, the compensation blocks 1201 can be arranged in an array. The irregular compensation blocks 1201 are arranged in an array. On the one hand, the compensation blocks in the compensation area can be roughly evenly distributed. On the other hand, the gap widths between the conductive electrode 110 and the compensation blocks 1201 and between the compensation blocks 1201 can be different, which is conducive to the superposition and cancellation of diffracted light, thereby further reducing the chromatic aberration and diffraction fringes caused by the diffracted light.

[0041] It should be understood that the array arrangement of the compensation blocks 1201 can be a rectangular array, a circular array, or an array along a straight line or curve, as long as the width of the gap formed between the compensation blocks 1201 and the compensation blocks 1201 are not exactly the same. The present application does not make any specific limitation on the array arrangement of the compensation blocks 1201.

[0042] It should also be understood that the multiple compensation blocks 1201 can be arranged in an array or randomly arranged. Whether the multiple compensation blocks 1201 are arranged in an array or randomly arranged can be selected according to actual application requirements, and this application does not make specific restrictions.

[0043] Figure 4 FIG. 1 is a schematic diagram of a touch film structure part I provided by another embodiment of the present application. Figure 4 In the touch film layer structure shown, the boundary of the conductive electrode 110 may be an irregular boundary composed of at least one of a straight line, a fold line and a curve, so that the conductive electrode 110 and the compensation block 1201 form gaps of different widths to reduce the chromatic aberration caused by diffracted light. The irregular boundary may be a closed graphic boundary composed of multiple straight lines and multiple curves connected.

[0044] Specifically, when light passes through a gap of fixed width, it forms alternating light and dark stripes, which means that diffraction occurs. Figure 4 As shown, the gap formed by the conductive electrode 110 and the compensation block 1201 has different widths at different positions. When light is irradiated onto the conductive layer 10, the light passes through gaps of different widths. The diffraction light generated by the gaps of different widths observed at the same angle can be superimposed and canceled, thereby reducing the chromatic aberration caused by the diffraction light.

[0045] It should be understood that the boundary of the conductive electrode 110 can be a boundary composed of multiple straight lines connected in sequence, a boundary composed of a broken line, a boundary composed of a curved line, a boundary composed of multiple straight lines and a curved line, or a boundary composed of multiple straight lines and multiple curved lines, as long as the gap formed by the conductive electrode 110 and the compensation block 1201 has different widths at different positions.

[0046] Figure 5FIG. 1 is a schematic diagram of a touch film structure part I provided by another embodiment of the present application. Figure 5 As shown, compared to Figure 4 In the touch film structure shown, the boundary shape of the conductive electrode 110 can be sawtooth or wavy. The sawtooth or wavy boundary can form gaps of different widths between the conductive electrode 110 and the compensation block 1201. Since the diffracted light generally changes periodically, gaps of different widths are more conducive to the superposition and cancellation of the diffracted light, thereby further reducing the chromatic aberration caused by the diffracted light.

[0047] It should be understood that the boundary shape of the conductive electrode 110 may also be other irregular shapes, as long as the gap formed with the compensation block 1201 has different widths at different positions. The present application does not specifically limit the boundary shape of the conductive electrode 110.

[0048] In one embodiment, compared to Figure 1B In the touch film layer structure shown, one or more compensation blocks 1201 may be multiple compensation blocks 1201. Since the area of ​​the compensation region 120 is limited, when the area of ​​the compensation region 120 is constant, the more compensation blocks 1201 there are, the smaller the projection area of ​​the compensation blocks 1201 on the plane parallel to the conductive layer 10 is, so that the gaps between the compensation blocks 1201 and the conductive electrodes 110, and between the compensation blocks 1201 and the compensation blocks 1201 are more and smaller. When light is irradiated onto the conductive layer 10, the light will pass through more and smaller gaps, which is conducive to reducing the intensity of the diffracted light, thereby reducing the chromatic aberration caused by the diffracted light.

[0049] It should be understood that the number and size of the multiple compensation blocks 1201 can be selected according to the actual application scenario. For example, the number and size of the compensation blocks 1201 that are easy to achieve mass production can be selected according to the difficulty of the process implementation, or the number and size of the compensation blocks 1201 with low production cost within the user's acceptable color difference range can be selected according to actual needs and production costs. This application does not specifically limit the number and size of the multiple compensation blocks 1201, as long as they can meet the needs of the actual application scenario.

[0050] Figure 6 FIG. 2 is a schematic diagram of a touch film structure part II provided by another embodiment of the present application. Figure 6 As shown, compared to Figure 1B In the touch film layer structure, the conductive electrode 110 includes: a plurality of electrode blocks 1101 ; and at least one connecting portion 1102 . The connecting portion 1102 is used to connect two adjacent electrode blocks 1101 . The connecting portion 1102 includes a hollow structure 11021 .

[0051] Specifically, when the touch film layer structure realizes the touch function, the conductive layer 10 can be spaced apart from another conductive structure, and the other conductive structure can be another conductive layer 10' stacked with the conductive layer 10, and the conductive electrode on the other conductive structure can cross-overlap with the conductive electrode on the conductive layer 10 only at the connection part 1102, so a double-layer structure will appear at the connection part 1102, while other non-overlapping parts, such as the electrode block 1101, are single-layer structures. Since the double-layer structure and the single-layer structure have differences in optical properties such as transmittance, reflectivity and refractive index, color difference is easy to occur. By making the connection part 1102 include a hollow structure 11021, the area of ​​the double-layer structure of the cross-overlapping part can be reduced, reducing the difference in optical properties such as transmittance, reflectivity and refractive index of the touch film layer structure, thereby reducing color difference.

[0052] Figure 7 FIG. 2 is a schematic diagram of a touch film structure part II provided by another embodiment of the present application. Figure 7 As shown, compared to Figure 6 In the touch film layer structure shown, the shape of the projection of the hollow structure 11021 on the plane parallel to the conductive layer 110 can be a closed figure composed of multiple straight lines and multiple curves connected, so that the hollow structure 11021 has an asymmetric boundary, thereby reducing the chromatic aberration caused by diffracted light.

[0053] Specifically, Figure 7 The hollow structure 11021 shown has an asymmetric border. When light is irradiated onto the conductive layer 10, the light will pass through the hollow structure 11021 with the asymmetric border. The diffraction light generated by the hollow structure 11021 with the asymmetric border observed at the same angle can be superimposed and canceled, thereby reducing the chromatic aberration caused by the diffraction light.

[0054] It should be understood that the boundary of the hollow structure 11021 can be a closed figure composed of multiple straight lines connected in sequence, a closed figure composed of a curved line, a closed figure composed of multiple straight lines and a curved line, or a closed figure composed of multiple straight lines and multiple curves, as long as the boundary of the hollow structure 11021 can be an asymmetrical shape.

[0055] Figure 8 FIG. 2 is a schematic diagram of a touch film structure provided by another embodiment of the present application. Figure 8As shown, the touch film layer structure provided in the embodiment of the present application includes: at least one conductive layer 10, the conductive layer 10 includes a conductive electrode 110 and a compensation area 120 located around the conductive electrode 110; the conductive electrode 110 includes a plurality of electrode blocks 1101 and a plurality of connecting parts 1102, the connecting part 1102 is used to connect two adjacent electrode blocks 1101, and the connecting part 1102 includes a hollow structure 11021; the compensation area 120 includes a plurality of compensation blocks 1201; wherein the plurality of compensation blocks 1201 are a plurality of rectangular compensation blocks 1201 arranged in a discrete array, the boundary shape of the conductive electrode 110 is a sawtooth shape, and the shape of the projection of the hollow structure 11021 on a plane parallel to the conductive layer 110 includes a convex sawtooth to the left or to the right, and the convex directions of the convex sawtooths of two adjacent hollow structures 11021 on the same electrode string are opposite. By making the convex serrations of two adjacent hollow structures 11021 on the same electrode string have opposite convex directions, the diffraction light generated by the hollow structures 11021 observed at the same angle can be superimposed and canceled, thereby reducing the chromatic aberration caused by the diffraction light.

[0056] It should be understood that the touch film layer structure may be all or part of the features of the touch film layer structures shown in Figures 1 to 8. The touch film layer structure may select appropriate features and combine them according to actual application requirements to form different touch film layer structures.

[0057] Fig. 9 FIG. 1 is a schematic diagram of a partial structure of a touch film layer provided by another embodiment of the present application. Fig. 9 As shown, the touch film layer structure includes: a first conductive layer 11; and a second conductive layer 12 disposed above the first conductive layer 11; wherein at least one of the first conductive layer 11 and the second conductive layer 12 has part or all of the technical features of the conductive layer 10 described above.

[0058] Specifically, the conductive electrodes of the first conductive layer 11 can be used as driving electrodes Tx along the X direction, and the conductive electrodes of the second conductive layer 12 can be used as receiving electrodes Rx along the Y direction. The X direction and the Y direction are perpendicular to each other, that is, the driving electrodes Tx and the receiving electrodes Rx are perpendicular to each other, which are used to locate the touch point. When the human body touches the screen, the capacitive coupling of the driving electrodes Tx and the receiving electrodes Rx is disturbed, and the touch position is determined by monitoring the degree of interference of the capacitive coupling of the driving electrodes Tx and the receiving electrodes Rx.

[0059] Fig. 9The conductive layer indicated by the solid line may be the first conductive layer 11, including the first conductive electrode 110a and a plurality of first compensation blocks 1201a, and the conductive layer indicated by the dotted line may be the second conductive layer 12, including the conductive electrode 110b and a plurality of second compensation blocks 1201b. Since the first conductive layer 11 and the second conductive layer 12 are arranged at intervals, and the first conductive electrode 110a of the first conductive layer 11 and the second conductive electrode 110b of the second conductive layer 12 may be arranged vertically and crosswise, the projections of the first conductive electrode 110a of the first conductive layer 11 and the second conductive electrode 110b of the second conductive layer 12 on a plane parallel to the first conductive layer 11 have an intersection region, and the projections of the connecting portion of the first conductive electrode 110a and the connecting portion of the second conductive electrode 110b on a plane parallel to the first conductive layer 11 overlap in the intersection region.

[0060] like Fig. 9 As shown, since the projections of the connection part of the first conductive electrode 110a and the connection part of the second conductive electrode 110b on the plane parallel to the first conductive layer 11 overlap, a double-layer structure appears at the connection part 1102, while other non-overlapping parts, such as the electrode block 1101, are single-layer structures. The double-layer structure and the single-layer structure have differences in optical properties such as transmittance, reflectivity and refractive index, which easily cause color difference. By making the connection part of the first conductive layer 11 and the second conductive layer 12 include a hollow structure 11021, the area of ​​the double-layer structure of the cross-overlapping part can be reduced, reducing the difference in optical properties such as transmittance, reflectivity and refractive index of the touch film layer structure, thereby further reducing the color difference of the touch film layer structure.

[0061] Fig.10 FIG. 2 is a schematic diagram of a touch film structure provided by another embodiment of the present application. Fig.10 As shown, compared to Fig. 9 The touch film structure shown in the figure further includes: an insulating layer 20 located between the first conductive layer 11 and the second conductive layer 12 ; and a protective layer 30 located on a side of the second conductive layer 12 away from the insulating layer 20 .

[0062] Specifically, the insulating layer 20 is located between the first conductive layer 11 and the second conductive layer 12, and is used to insulate the first conductive layer 11 and the second conductive layer 12. The insulating layer 20 can be an insulating transparent layer, such as a transparent glass, a transparent polycarbonate (PC) film layer, a transparent cycloolefin polymer (COP) film layer, a transparent cycloolefin copolymer (COC) film layer or a transparent triacetyl cellulose (TAC) film layer, etc. The present application does not specifically limit the type of the insulating layer 20, as long as it is a transparent insulating film layer. In addition, it should be understood that the insulating layer 20 can be a single layer or multiple layers. The present application does not specifically limit the number of insulating layers 20, as long as the insulating function is met. It should also be understood that when the insulating layer 20 is multiple layers, the multiple insulating layers 20 can be all located between the first conductive layer 11 and the second conductive layer 12, or one or more insulating layers 20 can be located between other film layers, on one side or on both sides.

[0063] The protective layer 30 is located on the side of the second conductive layer 12 away from the insulating layer 20, and is used to protect the touch film structure. The protective layer 30 can be transparent glass, transparent polycarbonate (PC) film, transparent cycloolefin polymer (COP) film, transparent cycloolefin copolymer (COC) film, or transparent triacetyl cellulose (TAC) film, etc. The present application does not specifically limit the type of the protective layer 30, as long as it is a transparent film with a protective function.

[0064] Fig.11 FIG. 1 is a schematic diagram of the structure of a touch screen provided by an embodiment of the present application. Fig.11 As shown, the touch screen includes a touch film structure including at least one conductive layer 10 as described in any of the above embodiments, a touch chip connected to a conductive electrode 110 of at least one conductive layer 10 in the touch film structure; and a display screen 40 bonded to the touch film structure.

[0065] Specifically, the display screen 40 is attached to the lower surface of the touch film structure for displaying images. The touch chip is connected to the conductive electrode 110 of the touch film structure for receiving and processing touch signals sensed by the conductive layer.

[0066] The display screen 40 may be an LCD display screen, an LED display screen or an OLED display screen. It should be understood that the type of the display screen 40 can be selected according to different application scenarios, as long as it can meet the display function, and the present application does not specifically limit the type of the display screen 40.

[0067] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A touch film structure, characterized in that: include: at least one conductive layer, the conductive layer comprising at least one conductive electrode and a compensation region located around the conductive electrode; Wherein, the compensation area includes one or more compensation blocks insulated from the conductive electrode, the compensation blocks include regular compensation blocks and / or irregular compensation blocks, and gaps of different widths are formed between adjacent compensation blocks and / or between the conductive electrode and the compensation blocks; The conductive electrode comprises: a plurality of electrode blocks; and At least one connecting portion, the connecting portion is used to connect two adjacent electrode blocks; the connecting portion includes a hollow structure, the projection shape of the hollow structure on a plane parallel to the conductive layer includes a leftward or rightward convex sawtooth, and the convex directions of the convex sawtooths of two adjacent hollow structures on the same electrode string are opposite.

2. The touch film structure according to claim 1, characterized in that: The plurality of compensation blocks are arranged in an array or randomly.

3. The touch film structure according to claim 1, characterized in that: The material of the compensation block is the same as the conductive material of the conductive electrode.

4. The touch film structure according to claim 1, characterized in that: The boundary of the electrode block includes an irregular boundary consisting of at least one of a straight line, a broken line and a curved line.

5. The touch film structure according to claim 1, characterized in that: The boundary of the electrode block includes one or a combination of two of the following shapes: a sawtooth shape and a wave shape.

6. The touch film structure according to any one of claims 1 to 5, characterized in that: The at least one conductive layer comprises: a first conductive layer; and a second conductive layer; The first conductive layer and the second conductive layer are arranged at intervals, and projections of a connecting portion of the first conductive layer and a connecting portion of the second conductive layer on a plane parallel to the first conductive layer overlap.

7. A touch screen, characterized in that: include: The touch film structure according to any one of claims 1 to 6; A touch chip connected to the conductive electrode of the touch film structure; and A display screen laminated with the touch film layer structure.

Citation Information

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