Triboelectric film laminates based on conductive primers

Abstract

A triboelectric film and its laminate utilizing a conductive primer are provided. The triboelectric effect is a type of contact electrification whereby, with the appropriate configuration, current can flow from one area to another. When touching the decorative triboelectric film, a charge is accumulated and the charge generated between the human body and the film flows through the conductive primer. This system based on the triboelectric effect and conductive primer can provide electrical functionality to decorative film products without any major modifications.

Description

[Technical field]

[0001] The present invention relates to conductive primer-based triboelectric films and laminates thereof.

[0002] Although many films exist, there are still few film products with electrical functions, such as film sensors and switches, because they often need to meet stringent processability requirements. For example, films with circuits of electrical devices, such as those with capacitive sensors patterned with conductive materials, make the film difficult to handle. Furthermore, films, such as decorative types, are often cut and stretched into many different shapes and sizes to fit the target. Stretching the film can lead to loss of conductivity or destruction of the circuit. For these reasons, it is difficult to incorporate electrical functions into films.

[0003] The present invention provides a triboelectric film laminate that utilizes a conductive primer. The triboelectric effect is a type of contact electrification where, with the right configuration, electrical current can flow from one area to another. When the triboelectric film is touched, for example, by a human body, an electrical charge is accumulated and the charge generated between the human body and the film flows through the conductive primer. This system based on the triboelectric effect and conductive primer can provide electrical functionality to film products, such as decorative types, without introducing significant modifications to the film.

[0004] The film can be subjected to a cone calorimetry test to evaluate its non-flammability. The key factor in the cone calorimetry test is the calorific value, calculated by the amount of oxygen consumed during combustion. A 20-minute total calorific value of 8.0 MJ / m2 is defined herein as a requirement for being fireproof or non-flammable. 2 It is defined that if the material is less than 100%, it will be recognized as non-flammable. The triboelectric film and laminates thereof of the present invention are designed to meet the non-flammability requirements. Summary of the Invention

[0005] In one embodiment, a triboelectric film laminate that is fire-resistant or non-flammable includes a substrate that acts like an insulator, a conductive primer layer on the substrate, an adhesive layer on the conductive primer layer, and a surface layer on the adhesive layer, which may be a decorative layer. The substrate may be, for example, a wall, a floor, a ceiling, a window, and interior and exterior parts of an automobile, train, or boat, etc. Touching or rubbing the surface layer generates a triboelectric voltage that can power a device.

[0006] In yet another embodiment, the same structure as above, but the substrate and conductive primer layer may be partitioned into two or more regions, and the adhesive surface layer extends over the partitioned conductive primer layer, thereby creating separate electrically partitioned regions. In the above type of configuration, for example, when a finger or hand is dragged across the surface layer from one electrically partitioned region to the other, a triboelectric voltage is generated in each region.

[0007] The structures described above provide a triboelectric voltage by rubbing or touching the surface of the adhesive layer and can be configured to actuate a device, i.e., such structures can be used to make a switch, a sensor, or can be coupled to another switch or sensor to activate a device through the switch or sensor.

[0008] In an example using a triboelectric film laminate, the electrically divided area with the conductive primer layer may be electrically coupled to a load, such as a switching device, such as an infrared transmitter, with an NPN transistor located on one side of the transmitter. An infrared receiver may be provided to receive the infrared signal from the transmitter and turn on or off another device coupled to the receiver. By tapping the surface layer, which may be a decorative film, on the side connected to the NPN transistor, a triboelectric voltage is generated and an infrared signal is sent from the infrared transmitter to the infrared receiver. If the infrared receiver is connected to a device such as a lamp, the infrared receiver turns the lamp on. By tapping the surface layer again, an infrared signal is sent to turn the lamp off. The load is not limited to an infrared device, but may be any type of electrical device or transducer. Furthermore, the load is not limited to an NPN transistor, but may be any other type of transistor or combination of transistors forming a circuit.

[0009] In another embodiment, a detection device for sensing triboelectric voltage is presented. The device comprises the following layers: an insulating layer, a conductive primer layer partially disposed on the insulating layer, an electrode disposed on the primer layer, an adhesive layer disposed on the conductive primer layer and partially or entirely disposed on the electrode, and a surface layer disposed on the adhesive layer. Both the adhesive layer and the surface layer may be transparent or decorative films. At least a portion of the conductive primer layer is formed in contact with the insulating layer and is divided into a plurality of separate electrically separated regions, and each electrode contacts a portion of one of the surfaces of the conductive primer layer and is provided in each of the electrically separated regions.

[0010] The triboelectric film, laminate thereof, or sensing device has a conductive primer layer that is fire resistant or non-flammable. To render the film, laminate, or sensing device fire resistant, at least the underlying conductive primer layer is rendered fire resistant or non-flammable. As used herein, a total heat release of 8.0 MJ / m2 in 20 minutes under a cone calorimetry test is considered to be a material that is fire resistant.2 A film, laminate, or sensing device is defined as non-flammable if it is less than 100%. The compositions of the present invention achieve non-flammability and electrical functionality for the triboelectric film, its laminate, and sensing device using decorative wallpaper such as, for example, 3M DI-NOC film (3M Company, St. Paul, Minnesota).

[0011] The triboelectric film, its laminate, or surface film incorporated into the detection device is not limited to any decorative film such as DI-NOC film, but may be other types of films, decorative or non-decorative, such as 3M FASARA film, 3M SCOTCHCAL film, 3M SCOTCHTINT window film, 3M interior trim film (ITE) (all manufactured by 3M Company, St. Paul, Minnesota), or any other similar film. [Brief description of the drawings]

[0012] [Figure 1] In one embodiment of the present invention, a triboelectric film stack is provided. [Figure 2A] Another embodiment of the present invention provides a triboelectric film laminate that exhibits triboelectric voltage generation. [Figure 2B] Another embodiment of the present invention provides a triboelectric film laminate that exhibits triboelectric voltage generation. [Figure 3A] As another embodiment of the present invention, the triboelectric voltage from tapping a triboelectric film stack is shown. [Figure 3B] As another embodiment of the present invention, the triboelectric voltage from tapping a triboelectric film stack is shown. [Figure 4A] Yet another embodiment of the present invention is a triboelectric film stack having a switching device. [Figure 4B] Yet another embodiment of the present invention is a triboelectric film stack having a switching device. [Figure 4C]Yet another embodiment of the present invention is a triboelectric film stack having a switching device. [Diagram 5] Yet another embodiment of the present invention is a sensing device using a triboelectric film stack having electrodes. [Figure 6] In yet another embodiment of the present invention, a triboelectric film stack having a load is provided. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] The present invention relates to a triboelectric film having a conductive primer layer and a laminate thereof.

[0014] FIG. 1 shows a triboelectric film laminate 100 having a conductive primer layer. The laminate 100 has a substrate 110, which is an electrically insulating or non-conductive layer, a conductive primer layer 120 disposed on the insulating layer, an adhesive layer 130 disposed on the conductive primer layer 120, and a surface layer 140 disposed on the adhesive layer 130. The substrate 110 may be a conventional wall, such as plaster sandwiched between paper or concrete. Other examples of substrates may be one of glass, resin, and paint for interior or exterior parts of walls, floors, ceilings, automobiles, trains, or boats. The surface layer 140 and adhesive layer 130 may be a decorative film, such as 3M DI-NOC film, or wallpaper. Other examples of the surface layer 140 may be one or more of the following materials: resin, paper, woven fabric, nonwoven fabric, knitted fabric, metal foil, paint, and rubber. The adhesive layer 130 may be a pressure-sensitive adhesive layer. The conductive primer layer 120 may be prepared by the materials shown in Table 1 (Examples 1, 2, and 3). The surface layer 140, the adhesive layers 130, 240, and the conductive primer layer 120 may be fireproofed to render the triboelectric film laminate 100 fire-resistant or non-combustible. Either the surface layer and adhesive layers or the conductive primer layer may be fireproofed. The non-combustible property of the triboelectric film laminate is verified at least by cone calorimetry testing, as described in the experimental section below.

[0015] 2A and 2B show an embodiment of a detection device 200 for sensing triboelectric voltage. The detection device 200 has two separate substrates 210 and two conductive primer layers 220 disposed on the two substrates 210. Here, the conductive primer layers 220 were prepared by applying 1.2 g of conductive primer to two gypsum boards as substrates, respectively. It also has an adhesive layer 230 on the two conductive primer layers 220 and a surface layer 240 disposed on the adhesive layer 230. The films corresponding to the adhesive layer 230 and the surface layer 240 may be decorative films such as 3M DI-NOC film ST-442EX or 3M DI-NOC film FW-888 (both 3M Company, St. Paul, Minnesota). With this structure, electrically divided regions are formed, and each region is defined by a respective electrically separated conductive primer layer 220. The conductive primer layer 220 can be prepared by the materials shown in Table 1. A load such as a voltage sensor may be attached to the conductive primer layer 220 at the peripheral edge using conductive wires 250. Here an oscilloscope 260 is shown showing the generated voltage. However, the load is not limited to an oscilloscope but may be any sensor such as a microphone, thermal sensor, position and pressure sensor, antenna, or a switch or transducer, etc.

[0016] By running or rubbing a hand or finger from (i) to (ii) as shown in FIG. 2A, i.e., from one electrically divided region to the other, a triboelectric voltage can be generated in each electrically divided region as shown in plot 302 of FIG. 2B, which can be detected by oscilloscope 260.

[0017] Figures 3A and 3B show that when different materials are used, different triboelectric voltage signatures can be generated when a finger or hand is used to tap the surface of the film, in plots 304, 306, respectively. ST-442EX is used as the adhesive layer and surface layer in Figure 3A in the configuration shown in Figure 2A. FW-888 is used as the adhesive layer and surface layer in Figure 3B in the configuration shown in Figure 2A.

[0018] Figures 4A, 4B, and 4C show another example of using a triboelectric film laminate. The elements of the laminate 400 of this example shown in Figures 4A and 4B, the substrate 410, the adhesive layer 430, and the surface layer 440, correspond to those shown in Figure 2A, except that the electrically divided area with the conductive primer layer 420 can be electrically connected to a load, such as a switching device, such as an infrared transmitter 450, with an NPN transistor 460 located on one side of the transmitter 450. An infrared receiver 470 can be provided to receive an infrared signal from the transmitter 450 and turn on or off another device connected to the receiver. As shown in images 490, 492, 494, 496 in Figure 4C, by tapping the surface layer 440, which may be a decorative film, on the side connected to the NPN transistor 460, a triboelectric voltage is generated and an infrared signal is transmitted from the infrared transmitter 450 to the infrared receiver 470. If the infrared receiver 470 is integrated with a lamp 480, the infrared receiver can turn on the lamp. By tapping the surface layer 440 again, an infrared signal can be sent to turn off the lamp. The load is not limited to an infrared device and an NPN transistor, but can be any other type of electrical transducer in or with the circuit.

[0019] As shown in Fig. 5, an example of a detection device for sensing triboelectric voltage is provided. The detection device 500 includes an electrically insulating layer 510 as a substrate, a conductive primer layer 520 partially disposed on the insulating layer 510, an electrode 530 disposed on the conductive primer layer 520, an adhesive layer 540 disposed on the electrically conductive primer layer 520 and partially or entirely disposed on the electrode 530, and a surface layer 550 disposed on the adhesive layer 540. Both the adhesive layer 540 and the surface layer 550 may be one of the decorative films such as 3M DI-NOC film (e.g., FW-1129EX (3M Company, St. Paul, Minnesota). At least a portion of the conductive primer layer 520 may be formed in contact with the insulating layer 510 and may be divided into a plurality of separate electrically separated regions. Each electrode may be in contact with one portion of the surface of the conductive primer layer 520 and provided in each of the electrically separated regions. The conductive primer layer 520 may be prepared by the materials shown in Table 1 (Examples 1, 2 and 3).

[0020] The surface layer 550 may be one or more of the following materials: resin, paper, woven fabric, nonwoven fabric, knitted fabric, metal foil, paint, and rubber. The adhesive layer 540 may be a pressure-sensitive adhesive layer. To make the detection device 500 non-flammable, the surface layer 550, the adhesive layer 540, and the conductive primer layer 520 may be fireproofed, or only the conductive primer layer 520 may be fireproofed. As described in the experimental section below, the fire resistance of the triboelectric film laminate may be verified by at least a cone calorimetry test. The detection device 500 may be fireproof or non-flammable by making both the surface layer 550 and the adhesive layer 540 and the conductive primer layer 520, or only one of them, fireproofed.

[0021] Insulation layer 510 may be a conventional wall such as plaster sandwiched between paper or concrete. Other examples of insulation layer 510 may be one of glass, resin, and paint for walls, floors, ceilings, interior or exterior parts of an automobile, train, or boat.

[0022] This configuration can also provide a basis for generating and detecting a triboelectric voltage by connecting a load, such as a sensor or switch or other type of transducer, to each of the electrodes 530, thereby providing a triboelectric film laminate, which may be a decorative film, with electrical functionality.

[0023] Figure 6 shows a triboelectric film laminate 600 comprising a substrate 610, a spaced apart conductive primer layer 620 disposed on the substrate 610, and a surface / adhesive layer 630 disposed on the conductive primer layer 620. While Figure 5 shows electrodes, in Figure 6 a load 640 is connected to the ends of the conductive primer layer 620, thereby acting as electrodes themselves. In this embodiment, no electrodes are provided, which may improve processability of the triboelectric film laminate 600.

[0024] Triboelectric film layer 600 can be made fire resistant or non-flammable by fireproofing both surface / adhesive layer 630 and conductive primer layer 620 or just one of them. EXAMPLES

[0025] material [Table 1]

[0026] compound Examples 1-3 were made using the formulations listed in Table 2. [Table 2]

[0027] Triboelectric Film Laminate Example 1. While stirring 75 g of an aqueous dispersion of KUNIPIA-M having a solid content of 5.6% by mass, 0.39 g of sodium diphosphate decahydrate, 11 g of distilled water, and 3.8 g of LAPONITE-S 482 were slowly added and thoroughly stirred. 3.9 g of CHLOROPRENE 671A, 0.24 g of EPOCROS K-2030E, 13 g of TUBALL COAT_E H were added to the resulting aqueous dispersion of 94 g. 2 O SDBS, and 2.6g of FG-3X were added and the mixture was mixed thoroughly. Next, 0.81g of potassium silicate 2K was mixed, and then 0.87g of OLFINE EXP.4123 was mixed with the mixture to obtain a coating solution of conductive primer. The resulting coating solution was applied to a COMOGLAS P acrylic board and air-dried three times to form a three-layer conductive primer. Then, FW-1129EX was laminated onto the coated COMOGLAS P acrylic board to obtain a sample, triboelectric film laminate, for evaluation according to the embodiment shown in Figures 4A, 4B, and 4C. The infrared transmitter of PS-3247 was connected to the layer of conductive primer via Cu tape, and the infrared transmitter was connected to drive the LED lamp on the infrared receiver of PS-3247.

[0028] Triboelectric Film Laminate Example 2. While stirring 75 g of an aqueous dispersion of KUNIPIA-M having a solid content of 5.6% by mass, 0.39 g of sodium diphosphate decahydrate, 11 g of distilled water, and 3.8 g of LAPONITE-S 482 were slowly added and thoroughly stirred. 1.5 g of VINYBLAN 715, 0.045 g of EPOCROS K-2030E, 2.3 g of TUBALL COAT_E H were added to the resulting aqueous dispersion of 17 g. 2O SDBS and 0.47g of FG-3X were added and the mixture was mixed thoroughly. Next, 0.16g of potassium silicate 2K was mixed, and then 0.15g of OLFINE EXP.4123 was mixed with the mixture to obtain a coating solution of conductive primer. 1.9g (0.24g solids) of the resulting coating solution was applied to TIGER BOARD GB-R and allowed to dry naturally, after which FW-888 was laminated onto the coated TIGER BOARD GB-R gypsum board to obtain a sample for non-flammability evaluation, a triboelectric film laminate.

[0029] Triboelectric Film Laminate Example 3. While stirring 75 g of an aqueous dispersion of KUNIPIA-M having a solid content of 5.6% by mass, 0.39 g of sodium diphosphate decahydrate, 11 g of distilled water, and 3.8 g of LAPONITE-S 482 were slowly added and thoroughly stirred. 3.9 g of CHLOROPRENE 671A, 0.24 g of EPOCROS K-2030E, 13 g of TUBALL COAT_E H were added to the resulting aqueous dispersion of 94 g. 2 O SDBS and 2.6g of FG-3X were added and the mixture was thoroughly mixed. Next, 0.81g of potassium silicate 2K was mixed, and then 0.87g of OLFINE EXP.4123 was mixed with the mixture to obtain a coating solution of a conductive primer. 1.9g (0.23g solid content) of the resulting coating solution was applied to TIGER BOARD GB-R and allowed to dry naturally, after which FW-1129EX was laminated onto the coated TIGER BOARD GB-R gypsum board to obtain a sample for evaluating non-flammability, a triboelectric film laminate.

[0030] Test method. Cone Calorimetry: Measurements were made of the decreasing oxygen concentration in the combustion gases of a sample exposed to a given heat flux. The following cone calorimeter test standards were used: US ASTM E1354, international standard ISO 5660. The sample was placed on a load cell to evaluate the progress of mass loss during the experiment. A cone-shaped radiant electric heater irradiated the sample uniformly from above. Combustion was triggered by an electric spark. The combustion gases passed through the heating cone and were captured by an exhaust duct system with a centrifugal fan and hood. Gas flow, oxygen, CO, CO 2 The concentration and smoke density were measured in the exhaust duct. The total heat output for 20 minutes was 8.0 MJ / m 2 If the flame retardance did not exceed 100%, the material was deemed non-combustible.

[0031] result. The LED light glowed when a finger was wiped across the sample, as shown in Figures 4A, 4B and 4C. Calorimetry tests were performed on Examples 2 and 3 to show that they met the requirements for non-flammability, with the results shown in Table 3 below. [Table 3]

[0032] Exemplary embodiments Various embodiments of the application may include one or more of the following.

[0033] [1] A triboelectric film laminate comprising: a substrate acting as an insulator; a conductive primer layer disposed on the substrate; an adhesive layer disposed on the conductive primer layer; and a surface layer disposed on the adhesive layer, wherein the surface layer is a decorative film.

[0034] [2] A triboelectric film laminate comprising two or more substrates that are separate from one another and act as insulators, two or more conductive primer layers correspondingly disposed on the substrates, and adhesive layers disposed on the conductive primer layers, wherein each conductive primer layer disposed on each substrate is partitioned to provide an electrically separate region.

[0035] [3] The triboelectric film laminate according to [1] or [2], wherein the triboelectric film is fire-resistant or non-flammable.

[0036] [4] The triboelectric film laminate according to [1] or [2], wherein the triboelectric film laminate is fire-resistant or non-flammable.

[0037] [5] A detection device for sensing triboelectric voltages, comprising: an insulating layer; a conductive primer layer disposed partially or entirely on the insulating layer; an electrode attached to the conductive primer layer; an adhesive layer disposed on the conductive primer layer and disposed partially or entirely on the electrode; and a surface layer disposed on the adhesive layer, wherein at least a portion of the conductive primer layer is formed in contact with the insulating layer and is partitioned into a plurality of electrically separated regions, and each electrode contacts a portion of one of the surfaces of the conductive layer and is provided in each of the electrically separated regions.

[0038] [6] The detection device described in [5], wherein at least a portion of the adhesive layer is formed so as to contact the conductive primer layer.

[0039] [7] The detection device according to [5], wherein the surface layer comprises one or more materials selected from resin, paper, woven fabric, nonwoven fabric, knitted fabric, metal foil, paint, and rubber.

[0040] [8] The detection device described in [5], wherein the adhesive layer and the surface layer are formed from an article comprising a surface layer and a pressure-sensitive adhesive layer formed on one of the surfaces of the surface layer.

[0041] [9] The detection device according to [5], wherein the insulating layer is one of concrete, glass, plasterboard, resin, and paint.

[0042]

[10] The detection device of [5], further comprising a transducer connected to one electrode on one side and to the other electrode on the opposite side to complete a circuit.

[0043]

[11] A method for manufacturing a detection device, comprising: forming a conductive primer layer on a surface of an insulating layer, the conductive primer layer being divided into a plurality of electrically divided regions; providing an electrode in each of the electrically divided regions; and forming an adhesive layer and a surface layer on a surface of the conductive primer layer opposite the insulating layer.

[0044]

[12] A detection device for sensing triboelectric voltage, comprising: a substrate acting as an insulator; a conductive primer layer disposed on the substrate; an adhesive layer disposed on the conductive primer layer; and a surface layer disposed on the adhesive layer.

[0045]

[13] The detection device according to

[12] , wherein the surface layer has a decorative film on the side opposite the adhesive layer, and the detection device is fire-resistant or non-flammable.

[0046]

[14] The detection device described in

[12] , wherein the adhesive layer and the surface layer are formed from an article comprising a surface layer and a pressure-sensitive adhesive layer formed on one of the surfaces of the surface layer.

[0047]

[15] A detection device for sensing triboelectric voltages, comprising: two or more substrates, each spaced apart from one another and acting as an insulator; two or more conductive primer layers correspondingly disposed on the substrates and spaced apart; an adhesive layer disposed on the conductive primer layers; a surface layer disposed on the adhesive layers; and a load connected on one side to one of the conductive primer layers and on the other side to one of the other conductive primer layers spaced apart from one of the conductive primer layers, wherein each conductive primer layer disposed on each substrate is spaced apart to provide an electrically separate region.

[0048]

[16] The detection device according to

[15] , wherein the surface layer has a decorative film on the side opposite the adhesive layer, and the detection device is fire-resistant or non-flammable.

[0049]

[17] The detection device according to

[15] , wherein the load is a transducer.

[0050]

[18] The detection device according to

[15] , wherein the load is a sensor or a switch.

[0051]

[19] The detection device according to

[15] , wherein the surface layer comprises one or more materials selected from resin, paper, woven fabric, nonwoven fabric, knitted fabric, metal foil, paint, and rubber.

[0052]

[20] The detection device described in

[15] , wherein the adhesive layer and the surface layer are formed from an article comprising a surface layer and a pressure-sensitive adhesive layer formed on one surface of the surface layer.

[0053]

[21] The detection device according to

[15] , wherein the substrate is one of concrete, glass, plasterboard, resin, and paint.

[0054] Thus, various embodiments of conductive primer based triboelectric film laminates are disclosed.

[0055] Unless otherwise indicated, all numbers expressing feature sizes, quantities, and physical properties used in the specification and claims can be understood as being modified by either the term "exactly" or "about." Accordingly, unless specifically indicated to the contrary, the numerical parameters set forth in the above specification and appended claims are approximations that can vary depending upon the desired properties one of ordinary skill in the art would seek to obtain using the teachings disclosed herein, for example, within typical ranges of experimental error.

[0056] The term "or" is generally used in its inclusive sense, eg, meaning "and / or," unless the content clearly indicates otherwise.

[0057] The phrases "at least one of," "comprises at least one of," and "one or more of" followed by a list refer to any one of the items in the list, as well as any combination of two or more items in the list.

Claims

1. 1. A triboelectric film laminate comprising: a substrate that acts as an insulator; a conductive primer layer disposed on the substrate; an adhesive layer disposed on the conductive primer layer; a surface layer disposed on said adhesive layer, said surface layer being a decorative film.

2. 1. A triboelectric film laminate comprising: two or more substrates, each of which is isolated from the other and acts as an insulator; two or more conductive primer layers disposed correspondingly on the substrate; an adhesive layer disposed on the conductive primer layer, A triboelectric film laminate wherein each conductive primer layer disposed on each substrate is partitioned into electrically separate regions.

3. 1. A detection device for sensing triboelectric voltage, comprising: an insulating layer; a conductive primer layer disposed partially or entirely on the insulating layer; an electrode deposited on the conductive layer; an adhesive layer disposed on the conductive primer layer and partially or entirely disposed on the electrode; a surface layer disposed on the adhesive layer, A detection device, wherein at least a portion of the conductive primer layer is formed so as to contact the insulating layer and is divided into a plurality of electrically divided regions, and each electrode contacts a portion of one surface of the conductive layer and is provided in each of the electrically divided regions.

4. A method for manufacturing a detection device, comprising: forming a conductive primer layer on a surface of an insulating layer, the conductive primer layer being divided into a plurality of electrically separated regions; providing an electrode in each of the electrically divided regions; and forming an adhesive layer and a surface layer on the surface of the conductive primer layer opposite to the insulating layer side.

5. 1. A detection device for sensing triboelectric voltage, comprising: a substrate that acts as an insulator; a conductive primer layer disposed on the substrate; an adhesive layer disposed on the conductive primer layer; a surface layer disposed on the adhesive layer.

6. 1. A detection device for sensing triboelectric voltage, comprising: two or more substrates, each separated from the other and acting as an insulator; two or more spaced apart conductive primer layers correspondingly disposed on the substrate; an adhesive layer disposed on the conductive primer layer; a surface layer disposed on the adhesive layer; a load connected on one side to one of the conductive primer layers and on the other side to another of the conductive primer layers spaced apart from one of the conductive primer layers; A detection device in which each conductive primer layer disposed on each substrate is partitioned to form electrically separated regions.

7. The detection device of claim 6 , wherein the surface layer has a decorative film on the side opposite the adhesive layer, and the detection device is fire-resistant or non-flammable.

8. The detection device of claim 6 , wherein the load is a transducer.

Images