TWM577135U - Capacitive touch sensor - Google Patents

Abstract

A capacitive touch sensor includes: a substrate of insulating material; a first sensing layer of conductive material having a plurality of first sensing strings that are not overlapped and are arranged along a first axis, and adjacent first sensing strings are A first gap is used to insulate and separate each other; the second sensing layer of conductive material has a plurality of stitches formed of a conductive material which are not overlapped and are arranged along the second axis, and adjacent stitches are separated by a second The gaps are insulated from each other. Among them, a plurality of stitches together form a second inductive series, and the second inductive series includes parts of the inductive unit and the non-inductive unit. The inductive units are electrically connected in series through a jumper port. One or more stitches, the stitches of the non-inductive unit are connected to a ground wire; wherein the first sensing layer and the second sensing layer are respectively disposed on opposite surfaces of two sides of an insulating material substrate, so that the first An induction series and a second induction series are arranged orthogonally to each other; the width of the second gap is smaller than the width of the first gap to reduce the hollow space of the second induction layer.

Description

Capacitive touch sensor

This creation relates to a capacitive touch sensor, and more specifically, to a transparent capacitive touch sensor structure that can improve optical characteristics and provide electromagnetic shielding effects.

At present, capacitive touch sensors have been widely used in communications, computers, and consumer electronics; they are usually deployed on the display of electrical appliances, allowing users to perform interactive input operations to improve The purpose of friendly interface between human and machine and improving input operation efficiency.

The traditional capacitive touch sensor includes an x-axis sensing layer and a y-axis sensing layer, so that the x and y-axis sensing layers are insulated to provide two sides of a substrate, and the required x- and y-axis sensing layers are provided. The electrode pattern is, for example, a plurality of x-axis induction series and y-axis induction series. Each induction series maintains a proper gap between each other to ensure insulation, and is separately grounded and connected to a control circuit. The user's finger or conductor touches a capacitive effect, so the position of the finger or conductor can be determined by the change in the capacitance value.

In the traditional capacitive touch sensor structure, in order to ensure the insulation between each sensing string, the gap between adjacent sensing strings is widened, but widening the gap will cause the capacitive touch sensor to When in use, it is susceptible to external electromagnetic interference (EMI) or wire radio interference (RFI), which generates false signals. If the interference is severe, it may even make the entire touch sensor unusable. In addition, due to the conductive material forming the induction series It has different light transmittance from the hollowed-out area of the gap. Therefore, if a capacitive touch sensor with a wide gap is arranged on the display screen frame and applied, it will often be caused by the interference and diffraction of light. The image on the display screen is blurred or distorted, and even interference pattern (Moire) is generated, which seriously affects the display quality of the screen.

The main purpose of this creation is to provide a novel capacitive touch sensor structure, which can make the side of the capacitive touch sensor facing the source of electromagnetic interference without additional production processes and cost. An electromagnetic shielding layer can be formed to eliminate the interference of EMI and RFI, and to improve the uniformity of the refractive index of light, so as to avoid the phenomenon of light interference.

The next purpose of this creation is to provide an improved capacitive touch sensor structure that can adjust the sensitivity of the touch signal of the sensing series without changing the electrode pattern design of the sensing layer to meet the customized demand.

In order to achieve the above object, the present invention provides an improved capacitive touch sensor structure, which includes: a transparent substrate, a transparent first sensing layer, and a transparent second sensing layer, the first sensing layer and the second The sensing layers are respectively disposed on opposite surfaces of the two sides of the substrate, so that the two sensing layers are insulated and separated from each other; wherein the first sensing layer has a plurality of first sensing layers that are not overlapped and are disposed along the first axis. An inductive series, the first inductive series adjacent to each other is insulated and separated by a first gap from which a conductive material has been removed, and a first bridge is provided at one end of the first inductive series. A contact, the first bonding point is electrically connected to the first communication contact through a first signal transmission line; and the second sensing layer has a non-overlapping and is formed along a second axial direction and formed of a conductive material A plurality of stitches, and the adjacent stitches are insulated and separated from each other by a second gap from which the conductive material has been removed, wherein a plurality of the stitches collectively form a second inductive series, and the first The two induction series include a sensing unit ( active unit) and inactive unit, the inductive unit electrically connects one or more of the stitches through a jumper port, and makes the jumper port pass a second The signal transmission line is connected to a second communication contact, and the trace of the non-inductive unit is connected to a ground line; wherein the plurality of first inductive strings and the plurality of second inductive strings are insulated from each other. The two capacitors are separated and arranged orthogonally on the opposite surfaces of the two sides of the substrate to form a touch capacitance sensing structure; the touch capacitance sensing signals captured by the first sensing layer and the second sensing layer can pass through the first sensing layer. A communication contact and a second communication contact are transmitted to a subsequent signal processing circuit for calculation; the width of the second gap is smaller than the width of the first gap, and the second sensing layer has very few hollow gaps, which can provide The EMI shielding efficiency and the uniformity of the refractive index of the light are improved. In addition, the second sensing layer of the present invention can adjust the number of the stitches electrically connected in series to adjust the touch signal of the second sensing series. induction To meet the customized needs, and do not need to change the design of sensing electrode pattern layer.

In particular, the two longitudinal edges of the second gap have symmetrical or asymmetrical edge line shapes, and the edge line shapes are selected from continuous extending straight lines, wavy curves, jagged lines, regular lines or irregularities. Line, but the implementation range is not limited to the aforementioned line pattern; preferably, the width of the second gap is 100 μm or less, and more preferably, the width of the second gap is 25 μm or less.

Particularly, the first sensing layer and the second sensing layer are light-transmissive conductive thin layers, and the material is selected from transparent materials such as metal oxide films or graphene films, wherein the metal The material of the oxide thin film is selected from indium tin oxide (ITO), indium zinc oxide (IZO), zinc aluminum oxide (AZO), tin antimony oxide (ATO), and the like, but the implementation range is not limited to the foregoing materials.

In particular, the substrate is formed of an insulating material with high light transmittance, and the material is selected from various glass, polymethyl methacrylate (PMMA), polycarbonate (PC), polyester (PET), and ring. An olefin copolymer (COC), a cyclic olefin polymer (COP), and the like, but the implementation range is not limited to the aforementioned materials.

In one embodiment, another capacitive touch sensor structure provided by the present invention includes a transparent substrate, a transparent first sensing layer, and a transparent second sensing layer, the first sensing layer and the second The sensing layers are respectively disposed on opposite surfaces of the two sides of the substrate, so that the two sensing layers are insulated and separated from each other; wherein the first sensing layer has a plurality of first sensing layers that are not overlapped and are disposed along the first axis. An inductive series, the first inductive series adjacent to each other is insulated and separated by a first gap from which a conductive material has been removed, and a first bridge is provided at one end of the first inductive series. A contact, the first bonding point is electrically connected to the first communication contact through a first signal transmission line; and the second sensing layer has a non-overlapping and is formed along a second axial direction and formed of a conductive material Of a plurality of stitches, and adjacent ones of the stitches are insulated from each other by a second gap from which conductive material has been removed, and one or more of the stitches are electrically connected in series through a jumper port to Forming a second inductive series and making the cross The port is connected to a second communication contact through a second signal transmission line; wherein the plurality of the first inductive strings and the plurality of the second inductive strings are insulated from each other and are orthogonally disposed on two sides of the substrate. A touch capacitance sensing structure is formed according to this; the touch capacitance sensing signals captured by the first sensing layer and the second sensing layer can be transmitted to the subsequent through the first communication contact and the second communication contact. Signal processing circuit operation; the width of the second gap is smaller than the width of the first gap, so that the second sensing layer can provide EMI shielding performance and improve the uniformity of the refractive index of the light, and can directly control the The number of the stitches is electrically connected in series across the port to adjust the touch signal sensitivity of the second sensing series.

In particular, the two longitudinal edges of the second gap have symmetrical or asymmetrical edge line shapes, and the edge line shapes are selected from continuous extending straight lines, wavy curves, jagged lines, regular lines or irregularities. Line, but the implementation range is not limited to the aforementioned line pattern; preferably, the width of the second gap is 100 μm or less, and more preferably, the width of the second gap is 25 μm or less.

Particularly, the first sensing layer and the second sensing layer are light-transmissive conductive thin layers, and the material is selected from transparent materials such as metal oxide films or graphene films, wherein the metal The material of the oxide thin film is selected from indium tin oxide (ITO), indium zinc oxide (IZO), zinc aluminum oxide (AZO), tin antimony oxide (ATO), and the like, but the implementation range is not limited to the foregoing materials.

In particular, the substrate is formed of an insulating material with high light transmittance, and the material is selected from various glass, polymethyl methacrylate (PMMA), polycarbonate (PC), polyester (PET), and ring. An olefin copolymer (COC), a cyclic olefin polymer (COP), and the like, but the implementation range is not limited to the aforementioned materials.

In one embodiment, the present invention provides another capacitive touch sensor structure, which includes a transparent substrate, a transparent first sensing layer, a transparent cover plate, a transparent second sensing layer, and a transparent film. Layer, the first sensing layer and the second sensing layer are respectively disposed on opposite surfaces of the two sides of the substrate, and the two sensing layers are insulated and separated from each other according to this; A plurality of first sensing strings that overlap and are arranged along the first axis, and adjacent first sensing strings are insulated from each other by a first gap from which conductive materials have been removed, and are separated from each other in the first A first lap point is provided at one end of the induction string, and the first lap point is electrically connected to the first communication contact through a first signal transmission line; the second induction layer has a non-overlapping and A plurality of stitches formed of a conductive material disposed in a second axial direction, and adjacent ones of the stitches are insulated from each other by a second gap from which the conductive material has been removed, wherein one or more of the The stitch is electrically connected in series by a jumper port. A second induction string, and the jumper port is connected to a second communication contact through a second signal transmission line; the cover plate is combinedly disposed on the first induction layer, and the cover plate A peripheral edge portion is provided with a color frame formed of an insulating material, and the color frame is used to define on the cover plate a masking area forming a frame shape at the peripheral edge portion and a viewable area at a central portion; and the cover film Layers, which are arranged in combination on the second sensing layer; wherein the plurality of the first sensing strings and the plurality of the second sensing strings are insulated from each other and are orthogonally disposed on opposite sides of the substrate. The touch capacitance sensing structure is formed on the surface according to this; the touch capacitance sensing signals captured by the first sensing layer and the second sensing layer can be transmitted to subsequent signals through the first communication contact and the second communication contact. A processing circuit operation; the width of the second gap is smaller than the width of the first gap; the first sensing series and the second sensing series are formed in the area of the viewable area, and the first A lap point, the first letter Transmission line, and said first communication contact area within the range of the crossover port, a second signal transmission line, the second communication contacts are disposed within said shielding region.

In particular, the two longitudinal edges of the second gap have symmetrical or asymmetrical edge line shapes, and the edge line shapes are selected from continuous extending straight lines, wavy curves, jagged lines, regular lines or irregularities. Line, but the implementation range is not limited to the aforementioned line pattern; preferably, the width of the second gap is 100 μm or less, and more preferably, the width of the second gap is 25 μm or less.

Particularly, the first sensing layer and the second sensing layer are light-transmissive conductive thin layers, and the material is selected from transparent materials such as metal oxide films or graphene films, wherein the metal The material of the oxide thin film is selected from indium tin oxide (ITO), indium zinc oxide (IZO), zinc aluminum oxide (AZO), tin antimony oxide (ATO), and the like, but the implementation range is not limited to the foregoing materials.

In particular, the substrate, the cover plate, and the coating layer are formed of an insulating material with high light transmittance, and the material is selected from various glass, polymethyl methacrylate (PMMA), and polycarbonate. (PC), polyester (PET), cyclic olefin copolymer (COC) or cyclic olefin polymer (COP), etc., but the scope of implementation is not limited to the aforementioned materials.

In particular, the method further includes providing a functional thin layer on the surface of the cover, the functional thin layer being selected from the group consisting of an anti-fingerprint layer, a fogging film layer, a hard coat film layer, a polarizing film, or a retardation film. Part or all of one or more layers, but the implementation scope is not limited to the aforementioned functional thin layer.

This will further clarify the other functions and technical features of this creation below. Those skilled in the art will be able to realize this creation after reading the description in the article.

The attached capacitive touch sensor shown in FIGS. 1 to 4 is the first preferred embodiment of the creation, and its structure mainly includes a substrate 10, a first sensing layer 20, and a second sensing layer 40. .

The substrate 10 is formed of a high-transmittance insulating material, such as glass. The substrate 10 has an open and flat first main surface 11 and a second main surface 12, and the second main surface 12 is separated from the substrate. 10 is located on the opposite surface of the first main surface 11.

The first sensing layer 20 is made of a high-transmittance conductive material, such as an indium tin oxide (ITO) film; please refer to FIG. 2. In this embodiment, the first sensing layer 20 is an X-axis sensing layer and is provided. The first main surface 11 of the substrate 10 includes a plurality of first sensing strings 21 (ie, X-axis sensing strings) arranged along the X axis without overlapping in a plurality of rows. The rhombus-shaped first capacitive sensing units 21a are formed in rows along the first direction (ie, the X-axis direction). The conductive material between the first sensing strings 21 in each row has been removed to form The first gap 22 is used to isolate adjacent first induction strings 21 from each other by the first gap 22; one end of each row of the first induction strings 21 is provided with a first overlap point 21b, and the first overlap The point 21b can be electrically connected to the first communication contact 25 through the first signal transmission line 24.

The second sensing layer 40 is made of a high-transmittance conductive material, such as an indium tin oxide (ITO) film; please refer to FIG. 3. In this embodiment, the second sensing layer 40 is a Y-axis sensing layer and is provided. On the first main surface 12 of the substrate 10, there are a plurality of stitches 41 made of a conductive material that are not overlapped and are disposed along the Y-axis, and adjacent stitches 41 are formed by The second gap 42 from which the conductive material has been removed will be insulated and separated from each other. In this embodiment, three stitches 41 collectively form a second induction series 48. The second induction series 48 includes an induction unit 48a. And the non-inductive unit 48b, the inductive unit 48a electrically connects two spaced-apart stitches 41 in series through a jumper port 43 and electrically connects the jumper port 43 to the second signal transmission line 44 to The second communication contact 45, and a stitch 41 of the non-inductive unit 48 b is electrically connected to a ground line 46.

As shown in FIG. 1 and FIG. 4, the first induction series 21 and the second induction series 48 are insulated from each other and are orthogonally disposed on opposite surfaces of the two sides of the substrate 10. A touch capacitance sensing structure is formed at the intersection of the sensing series 21 and 48; and the sensing signal captured from the touch capacitance sensing structure between the first sensing layer 20 and the second sensing layer 40 can be passed through the first communication contact 25 and the first The two communication contacts 45 are electrically connected to a signal cable (not shown) and are transmitted to a subsequent signal processing circuit (not shown) for calculation.

Furthermore, the width of the second gap 42 should be smaller than the width of the first gap 22. It is best to set the width of the second gap 42 as much as possible on the condition that the insulation between adjacent stitches 41 can be ensured. Reduce the size, for example, the width is less than 100 μm, so as to reduce the hollowed-out area on the second sensing layer 40 to provide EMI shielding efficiency. At the same time, reducing the proportion of the hollowed-out area can also improve the uniformity of the refractive index of the light of the second sensing layer 40 Improve the visibility of the overall transparent touch sensor.

In addition, as shown in FIG. 3, in this embodiment, the edge line shapes of the two longitudinal edges of the second gap 42 are symmetrical continuous extension straight lines, but a transparent touch-like sensor is usually used in front of the LCD screen. The linear edge arrangement of the second gap 42 may cause interference light (Moire) to pass through the light and affect the screen display quality; therefore, in order to avoid the aforementioned possible interference of light, the edges of the second gap 42 may be The line type is set as a zigzag line (second embodiment, please refer to FIG. 5) or a wavy curve (third embodiment, please refer to FIG. 6) or other regular or irregular continuous extension lines, according to which That is to eliminate or reduce the problem of optical interference.

In addition, according to the structural features of the second sensing layer of this creation, the designer of the touch sensor can adjust the second sensing string by increasing or decreasing the number of the stitches 41 electrically connected in series by the jumper port 41. The touch signal sensitivity of column 48, for example, in this embodiment, three stitches 41 together form a second sensing string 48, and the jumper port 43 is electrically connected in series with two stitches 41 (see FIG. 3). ), But if the jumper port 43 electrically connects the three stitches 41 in series (the fourth embodiment, see FIG. 7), the touch signal sensitivity of the second sensing series 48 can be improved, and It is understood that in the foregoing electrical series connection method, no one of the three stitches will be connected to the ground line 46; otherwise, if the jumper port 43 is only electrically connected to one of the stitches 41 in series, that is, The touch signal sensitivity of the second sensing series 48 can be reduced. Similarly, according to the aforementioned electrical series method, the remaining two stitches among the three stitches are electrically connected to the ground line 46; In terms of this aspect, the second sensing series 48 is composed of three stitches 41 in this embodiment. Formed, but not limited to this, the second sensing series 48 may also be formed by more or fewer stitches 41, and the width of the stitches 41 on the second sensing layer 40 may also be set to It is smaller and thinner, so that each second sensing series 48 may include a larger number of stitches 41, so as to facilitate adjustment of the touch signal sensitivity of the second sensing series 48. In summary, it can be known that the second sensing layer structure of the present creation can adjust the touch signal sensitivity of the second sensing series 48 by adjusting the number of the stitches 41 electrically connected in series to the jumper port 41, so that The electrode pattern design of the sensing layer must be changed, which meets the needs of customization. It can greatly simplify the process of product design changes, increase the flexibility of production and sales operations, and save production costs and improve competitiveness.

Attached FIG. 8 to the stack structure of the touch sensor describing the fifth embodiment of the present invention. The capacitive touch sensor structure mainly includes a substrate 10, a first sensing layer 20, a cover plate 30, A second sensing layer 40 and a coating layer 50.

The substrate 10 is formed of a high-transmittance insulating material, such as glass. The substrate 10 has an open and flat first main surface 11 and a second main surface 12, and the second main surface 12 is separated from the substrate. 10 is located on the opposite surface of the first main surface 11.

The first sensing layer 20 is made of a high-transmittance conductive material, such as an indium tin oxide (ITO) film; as shown in FIG. 2, the first sensing layer 20 in this embodiment is an X-axis sensing layer. It is disposed on the first main surface 11 of the substrate 10 and includes a plurality of rows of first induction series 21 (ie, X-axis induction series) arranged along the X axis without overlapping. It is composed of a plurality of diamond-shaped first capacitive sensing units 21a arranged in rows along the first direction (ie, the X-axis direction). The conductive material between the first sensing strings 21 in each row has been removed. A first gap 22 is formed, and adjacent first induction strings 21 are insulated and separated from each other by the first gap 22. One end of each row of the first induction strings 21 is provided with a first overlap point 21b. The lap joint 21 b may be electrically connected to the first communication joint 25 through the first signal transmission line 24.

Please refer to FIG. 9, the cover plate 30 is formed of an insulating material with high light transmittance and excellent mechanical strength, such as glass, which is arranged on the first sensing layer 20 in combination and on the surface of the cover plate 30. The peripheral portion is provided with a color frame 31 formed of an insulating material, and the color frame 31 is used to define on the cover plate 30 a masking area 31 a forming a frame shape at the peripheral portion and a viewable area 31 b at the central portion.

The second sensing layer 40 is made of a high-transmittance conductive material, such as an indium tin oxide (ITO) film; as shown in FIG. 3, the second sensing layer 40 in this embodiment is a Y-axis sensing layer. It is provided on the first main surface 12 of the substrate 10, and there are a plurality of stitches 41 made of a conductive material that are not overlapped and are arranged along the Y axis on the second sensing layer 40. Between adjacent stitches 41 The second gap 42 from which the conductive material has been removed is insulated and separated from each other. In this embodiment, three stitches 41 collectively form a second inductive string 48. The second inductive string 48 is formed by a The jumper port 43 electrically connects three adjacent stitches 41 in series, and the jumper port 43 is electrically connected to the second communication contact 45 through the second signal transmission line 44.

The coating layer 50 is formed of a high-transmittance insulating material, such as a polyester film, and is disposed on the second sensing layer 40 in combination to provide protection for the circuits on the sensing layer.

In addition, the cover plate 30 and the coating layer 50 may be adhered to the sensing layers 20 and 40 by a solid optical adhesive film (OCA) or a liquid optical resin (OCR) having high light transmittance and insulation characteristics, and accordingly, These components are combined into one body, while ensuring that each component is insulated and separated from each other; please refer to FIG. 10, after the combination, the first induction series 21 and the second induction series 48 are formed in the area of the viewable area 31b. A lap point 21b, a first signal transmission line 24, a first communication contact 25, and a jumper port 43, the second signal transmission line 44, and a second communication contact 45 are all set in the area of the shielding area 31a, so Does not affect the appearance of the overall transparent touch sensor.

Similar to the aforementioned first embodiment, the first induction series 21 and the second induction series 48 in this embodiment are insulated from each other and are orthogonally disposed on opposite surfaces of the two sides of the substrate 10; the second The width of the gap 42 is smaller than the width of the first gap 22, and the width of the second gap 42 is less than 100 μm, so that the second sensing layer 40 can provide EMI shielding efficiency and improve the uniformity of the refractive index of the light. The two longitudinal edges of the second gap 42 have Symmetric or asymmetrical edge line type. In addition to being set in a continuous straight line, the edge line type can also use wavy curves, jagged lines, regular lines or irregular lines to reduce optical interference. Problem; the structure of the second sensing layer can adjust the touch signal sensitivity of the second sensing series 48 by adjusting the number of the stitches 41 electrically connected in series to the jumper port 41, so the process of product design change can be greatly simplified To quickly meet the needs of customization.

In addition, a functional thin layer 36 may be provided on the surface of the cover plate 30 (sixth embodiment, see FIG. 11). The functional thin film 36 may be an anti-fingerprint layer, a fogging film layer, or a hard coating layer. Layers of film to prevent surface contamination, reduce the reflectivity of the touch panel surface, or increase the hardness and scratch resistance of the panel surface; these functional films 30 can also be a film with light adjustment functions, such as by polarization One or two or more optical films, such as a thin film, a retardation film, or a rectangular film such as optical, are laminated to form a light-adjusting film, thereby improving the visibility of the transparent touch sensor.

Although the present invention has been fully explained with reference to the accompanying drawings and specific embodiments, it should be understood that the foregoing embodiments are merely implementation examples for further explanation, and the implementation manner of this creation is not limited to the description. Those skilled in the art will understand that Various changes and modifications; and such changes and modifications should be understood to be included in the scope of this creation as defined by the scope of the accompanying patent application.

10‧‧‧ substrate

11‧‧‧ first major surface

12‧‧‧ second major surface

20‧‧‧ the first induction layer

21‧‧‧The first induction series

21a‧‧‧The first capacitive sensing unit

21b‧‧‧First Lap Point

22‧‧‧ the first gap

24‧‧‧The first signal transmission line

25‧‧‧First communication contact

30‧‧‧ Cover

31‧‧‧ color box

31a‧‧‧ sheltered area

31b‧‧‧lookable area

36‧‧‧ Functional Film

40‧‧‧Second sensing layer

41‧‧‧ Stitch

42‧‧‧Second Gap

43‧‧‧ Crossover port

44‧‧‧Second signal transmission line

45‧‧‧Second communication contact

46‧‧‧ ground wire

48‧‧‧Second induction series

48a‧‧‧Induction unit

48b‧‧‧ Non-Inductive Unit

50‧‧‧ film

FIG. 1 is a schematic diagram of a stacked structure of a touch sensor according to the first embodiment. FIG. 2 is a plan view of a first sensing layer of the first embodiment. FIG. 3 is a plan view of a second sensing layer of the first embodiment. FIG. 4 is a plan view of each laminated combination of the first embodiment. FIG. 5 is a plan view of the second sensing layer of the second embodiment, and describes that the edge line type of the second gap is set into a zigzag line. FIG. 6 is a plan view of the second sensing layer of the third embodiment, describing setting the edge line shape of the second gap into a wavy curve. FIG. 7 is a plan view of the second sensing layer of the fourth embodiment, describing another electrical series connection of the stitches of the second sensing series. FIG. 8 is a schematic diagram of a stacked structure of a touch sensor according to a fifth embodiment. Fig. 9 is a plan view of a cover plate of the fifth embodiment. FIG. 10 is a plan view of each stacking combination of the fifth embodiment. FIG. 11 is a schematic diagram of a stacked structure of a touch sensor according to a sixth embodiment.

Claims (14)

A capacitive touch sensor includes: a substrate formed of a high-transmittance insulating material, having a first main surface and a second main surface; a first sensing layer, which is conductive by a high-transmittance conductive material; It is formed of a material and is disposed on the first main surface of the substrate. The first induction layer has a plurality of first induction strings that are not overlapped and are disposed along the first axis. The adjacent first The sensing strings are insulated from each other by a first gap from which the conductive material has been removed, and a first overlapping point is provided at one end of the first sensing string, and the first overlapping point passes through the first A signal transmission line is electrically connected to the first communication contact; and a second induction layer, which is formed of a conductive material with high light transmittance, is disposed on the second main surface of the substrate, and The two sensing layers have a plurality of stitches made of a conductive material that are not overlapped and are disposed along the second axis. Adjacent said stitches are insulated and separated from each other by a second gap from which the conductive material has been removed, wherein Forming a second inductive string from a plurality of said stitches together, The second inductive series includes an inductive unit and an inactive unit. The inductive unit is formed by electrically connecting one or more of the stitches through a jumper port. And connecting the jumper port to a second communication contact through a second signal transmission line, and the trace of the non-inductive unit is connected to a ground line; wherein the plurality of first inductive strings The columns and the plurality of second sensing strings are arranged orthogonally to each other on both sides of the substrate; the width of the second gap is smaller than the width of the first gap. The capacitive touch sensor according to claim 1, wherein the two longitudinal edges of the second gap have symmetrical or asymmetrical edge line shapes, and the edge line shapes are selected from straight and wavy shapes extending continuously. Curves, jagged lines, regular lines or irregular lines. The capacitive touch sensor according to claim 1, wherein a width of the second gap is 100 μm or less. A capacitive touch sensor includes: a substrate formed of a high-transmittance insulating material, having a first main surface and a second main surface; a first sensing layer, which is conductive by a high-transmittance conductive material; It is formed of a material and is disposed on the first main surface of the substrate. The first induction layer has a plurality of first induction strings that are not overlapped and are disposed along the first axis. The adjacent first The sensing strings are insulated from each other by a first gap from which the conductive material has been removed, and a first overlapping point is provided at one end of the first sensing string, and the first overlapping point passes through the first A signal transmission line is electrically connected to the first communication contact; and a second induction layer, which is formed of a conductive material with high light transmittance, is disposed on the second main surface of the substrate, and The two sensing layers have a plurality of stitches made of a conductive material that are not overlapped and are disposed along the second axis. Adjacent said stitches are insulated and separated from each other by a second gap from which the conductive material has been removed, wherein , Passing one or more of said stitches through a jumper port To form a second inductive string in series, and to connect the jumper port to a second communication contact through a second signal transmission line; wherein the plurality of the first inductive strings and the plurality of the second inductive strings are connected; The strings are arranged orthogonally on two sides of the substrate; the width of the second gap is smaller than the width of the first gap. The capacitive touch sensor according to claim 4, wherein the two longitudinal edges of the second gap have symmetrical or asymmetrical edge line shapes, and the edge line shapes are selected from straight and wavy shapes extending continuously. Curves, jagged lines, regular lines or irregular lines. The capacitive touch sensor according to claim 4, wherein a width of the second gap is 100 μm or less. A capacitive touch sensor includes: a substrate formed of a high-transmittance insulating material, having a first main surface and a second main surface; a first sensing layer, which is conductive by a high-transmittance conductive material; It is formed of a material and is disposed on the first main surface of the substrate. The first induction layer has a plurality of first induction strings that are not overlapped and are disposed along the first axis. The adjacent first The sensing strings are insulated from each other by a first gap from which the conductive material has been removed, and a first overlapping point is provided at one end of the first sensing string, and the first overlapping point passes through the first A signal transmission line is electrically connected to the first communication contact; a cover plate, which is formed of a high-transmittance insulating material, is arranged on the first sensing layer in combination, and is located at a peripheral portion of the cover plate A color frame formed of an insulating material is provided to define a shaded area forming a frame-type shielding area at a peripheral portion and a viewable area at a central portion on the cover plate; a second sensing layer, which is composed of It is formed of a conductive material with high light transmittance, and is arranged on the base. On the second main surface of the board, there are a plurality of stitches formed of a conductive material on the second sensing layer which are not overlapped and are arranged along the second axis, and adjacent stitches have been removed by The second gap of the conductive material will be insulated and separated from each other, wherein one or more of the stitches are electrically connected in series through a jumper port to form a second inductive string, and the jumper port passes a The second signal transmission line is connected to a second communication contact; and a coating layer, which is formed of a high-transmittance insulating material, is combined and disposed on the second sensing layer; wherein a plurality of the first The inductive series and the plurality of second inductive series are disposed orthogonally to each other on both sides of the substrate; a width of the second gap is smaller than a width of the first gap. The capacitive touch sensor according to claim 7, wherein the two longitudinal edges of the second gap have symmetrical or asymmetrical edge line shapes, and the edge line shapes are selected from straight and wavy shapes extending continuously. Curves, jagged lines, regular lines or irregular lines. The capacitive touch sensor according to claim 7, wherein a width of the second gap is 100 μm or less. The capacitive touch sensor according to claim 7, wherein the first sensing series and the second sensing series are formed in an area of the viewable area, and the first overlap point The first signal transmission line, the first communication contact and the jumper port, the second signal transmission line, and the second communication contact are all disposed within the area of the shielded area. The capacitive touch sensor according to claim 7, wherein the high-transmittance conductive film of the first sensing layer and the second sensing layer is selected from a metal oxide film or a graphene film. The capacitive touch sensor according to claim 11, wherein a material of the metal oxide film is one selected from the group consisting of indium tin oxide, indium zinc oxide, zinc aluminum oxide, and tin antimony oxide. The capacitive touch sensor according to claim 7, wherein the substrate, the cover plate, and the coating layer have a high light transmittance insulating material selected from the group consisting of glass and polymethyl methacrylate. One of ester, polycarbonate, polyester, cycloolefin copolymer or cycloolefin polymer. The capacitive touch sensor according to claim 7, further comprising a functional thin layer provided on a surface of the cover plate, the functional thin layer including an anti-fingerprint layer, a fogging film layer, and a hard coating layer. Some or all of the film layer, polarizing film or retardation film.