JP2005270640A - Sports implement, amusement tool, and training tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sports implement whose characteristics can be adjusted freely and minutely by a user. <P>SOLUTION: It is realized that a light-weight high functional circuit is installed in various sports implements by constituting various functional circuits with a TFT formed on a film, without using a printed board. A high functional circuit using a TFT provided over a flexible plastic film is light-weight and strong in bending and impacts. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a sports equipment having a circuit composed of a thin film transistor (hereinafter referred to as TFT) using a semiconductor thin film (thickness of about several to several hundred nm). For example, the present invention relates to sporting goods in which a light emitting display device having a piezoelectric element, a semiconductor circuit, or an organic light emitting element is mounted as a component. In addition, the present invention relates to a game product and a training product having a circuit formed of TFTs.

  Note that in this specification, a semiconductor circuit refers to all circuits that can function by utilizing semiconductor characteristics.

  In recent years, products (made by HEAD) in which IC chips are mounted on sports equipment such as tennis rackets, skis and snowboards have begun to be sold. These specific configurations are described in Patent Document 1. According to Patent Document 1, these products are equipped with an electronic operating element and a circuit attached to the electronic operating element. The electronic actuating element removes the resonance and adapts the performance of the sports equipment for different situations.

The on-board circuitry is a process processing circuit such as amplification and phase control to compensate for the distortion detected in the sports equipment or simply affect performance by changing the stiffness of the sports equipment. . The mounted circuit is mounted as a chip.
Special table 2001-523979

  Conventional sports equipment equipped with a chip converts impact and vibration into electrical energy, and changes the rigidity using the electrical energy. Although it is a sports equipment that adapts to the usage situation, the user still operates according to the characteristics of the sports equipment.

  That is, conventional sports equipment equipped with a chip has been developed for the purpose of enhancing performance such as higher rigidity and shock absorption.

  For example, in a tennis racket, the mechanical energy of impact with a ball is changed to electrical energy, and the electrical energy is used to restore the frame shape and absorb the impact. The tennis player can suppress the bending of the racket frame, can make a powerful return ball, and can reduce the impact of the ball, but needs to get used to the behavior. Although it is a high-performance racket that can reduce the impact by 20% to 50%, since the behavior shown is one pattern, the user will get bored.

  Therefore, the present invention provides a sports equipment in which a user can freely adjust the characteristics of the sports equipment freely.

  In addition, the present invention provides sports equipment, amusement equipment, and training equipment that can provide a high-performance circuit on a curved surface as well as on a flat surface, is lightweight, and has a high-performance circuit that is resistant to bending and impact. .

  The present invention makes it possible for a user to input to a circuit mounted on a sports equipment, and to provide a function that allows the user to perform step adjustment in the characteristics of the sports equipment. For this purpose, circuits are further integrated and various functional circuits are mounted on sports equipment. In order to integrate circuits, it is necessary to increase the chip size. However, a single crystal silicon chip mounted on a conventional product has a drawback that the mechanical strength increases as the chip size decreases, and the impact decreases as the chip size increases. In addition, when the chip size of the single crystal silicon chip is increased, the number of chips manufactured on an expensive single crystal silicon substrate (disc shape) is reduced, which increases the manufacturing cost. Further, as long as a single crystal silicon substrate is used, the chip size is limited.

  According to the description in Patent Document 1, the mounted circuit incorporates a dual FET amplifier, a sensor element, a diode chip, a resistor, and a capacitor. Since it is a chip, a space for embedding must be secured in order to be embedded in sports equipment. In addition, these components are mounted on a printed circuit board, and noise is likely to be superimposed.

  The present invention does not use a printed circuit board, and various functional circuits are composed of TFTs provided on a film, so that light weight high-functional circuits (CPU, power supply circuit, memory, reception circuit, transmission circuit) can be used for various sports equipment. Circuit, amplifier circuit, switch circuit, display unit, etc.). A plurality of circuits can be integrally formed on the same substrate, so that the cost can be reduced and the mounting area can be eliminated. Further, since it is in the form of a film, it can be saved in space to be incorporated in sports equipment, and can be attached and detached without attaching it to sports equipment, such as attaching or peeling a high-performance circuit. For example, a high function circuit can be attached to the ball. In addition, since a plurality of circuits are connected on the same substrate, noise is hardly superimposed.

  Specifically, a high-functional circuit can be attached to the curved surface of the ball, and energy (impact or vibration) applied to the ball can be converted into electricity, amplified, and light can be emitted by the electric power. The ball is also a new game item. For example, it can be used for a sports game in which soccer installed in a game center or the like is turned into a game. When the player kicks the ball toward the translucent seat, the kicked ball emits light at the moment of kicking, and the ball also emits light when it hits the seat. If an imaging means is provided on the opposite side of the player across the seat, it is possible to determine the location where the seat has been hit or the location where the ball has been kicked.

  Further, for example, an amplifying circuit is constituted by a TFT, and a TFT in which a gate and a drain are connected (this connection is expressed as a diode connection) is used as a diode. In addition, a central processing unit (also referred to as a CPU) and a storage unit (also referred to as a memory), which are a combination of the arithmetic unit and the control unit, can be configured by TFTs using a polycrystalline semiconductor as an active layer. If a CPU can be installed, a wide variety of settings can be made in sports equipment.

  In addition, if the circuit does not require high field-effect mobility (for example, a switch circuit), the TFT is not limited to a TFT using a polycrystalline semiconductor as an active layer, and an amorphous semiconductor or organic substance (pentacene, carbon nanotube, etc.) A TFT using may be used.

  In addition, the present invention provides TFTs on a flexible substrate, typically a flexible plastic film. The present applicant uses an exfoliation method that does not damage the layer to be peeled and a peeling method that does not limit the process of the layer to be peeled by the technique described in Japanese Patent Application Laid-Open No. 2003-174153. And a circuit including the element can be peeled off and transferred.

  According to the technique described in Japanese Patent Laid-Open No. 2003-174153, a TFT having polysilicon as an active layer can be provided on a flexible substrate or a film, so that the size can be designed according to the shape of various sports equipment. Note that the method of providing TFTs on a flexible plastic film is not limited to the above (Japanese Patent Laid-Open No. 2003-174153). For example, a separation layer is provided between the layer to be peeled and the substrate, and the separation layer is removed with a chemical solution (etchant) or an etching gas to separate the layer to be peeled from the substrate. A separation layer made of amorphous silicon (or polysilicon) is provided between them, passing through the substrate and irradiating a laser beam to release hydrogen contained in the amorphous silicon, thereby creating voids and peeling off. A method of separating the layer and the substrate can be used. Note that in the case of peeling using laser light, it is preferable to form an element included in the layer to be peeled at a heat treatment temperature of 410 ° C. or lower so that hydrogen is not released before peeling.

In addition, the cross-sectional SEM photograph of TFT actually transferred to the film substrate is shown in FIGS. An enlarged view of FIG. 11 is shown in FIG. From FIG. 12, a TFT having a single drain structure with a gate length of 1.2 μm can be confirmed.

In addition, a CPU that is a typical high-function circuit is configured by using about 27,000 TFTs, and a layout with a chip area of 100 mm ² can be realized. As shown in FIG. 13, 12 chips can be formed from a 5-inch substrate.

  Further, FIG. 14 is a photograph of one chip after FPC is bonded after dividing. Even if FPC is crimped, it can be mounted without disconnection defects such as cracks.

  FIG. 17 shows a block diagram of one chip, which will be described below.

  First, when the operation code is input to the interface 1701, the analysis circuit 1703 (also referred to as instruction decoder) decodes the code, and the signal is input to the control signal generation circuit 1704 (CPU Timing Control). When a signal is input, a control signal is output from the control signal generation circuit 1704 to the arithmetic circuit 1009 (hereinafter referred to as ALU) and the storage circuit 1710 (hereinafter referred to as Register).

  The control signal generation circuit 1704 includes an ALU controller 1705 (hereinafter referred to as ACON) that controls the ALU 1709, a circuit 1706 (hereinafter referred to as RCON) that controls the Register 1710, and a timing controller 1707 (hereinafter referred to as TCON) that controls timing. And an interrupt controller 1708 (hereinafter referred to as ICON) for controlling the interrupt.

  On the other hand, when an operand is input to the interface 1701, it is output to the ALU 1709 and the Register 1710. Then, processing based on the control signal input from the control signal generation circuit 1704 (for example, memory read cycle, memory write cycle, I / O read cycle, I / O write cycle, etc.) is performed.

  The Register 1710 includes a general-purpose register, a stack pointer (SP), a program counter (PC), and the like.

  An address controller 1711 (hereinafter referred to as ADRC) outputs a 16-bit address.

  Note that the configuration of the CPU shown in FIG. 17 is an example, and does not limit the configuration of the present invention. Therefore, it is possible to use a known CPU configuration other than the configuration shown in FIG.

  According to the present invention, by enabling a further high-performance circuit to be mounted on the sports equipment, the user can operate the high-performance circuit mounted and adjust the characteristics of the sports equipment. A high-performance circuit using TFTs provided on a flexible plastic film is lightweight and resistant to bending and impact.

  Further, a high-function circuit (a CPU, a power supply circuit, a memory, a reception circuit, a transmission circuit, an amplifier circuit, a switch circuit, a display portion, or the like) can be mounted on the clothes. It is possible to perform motion analysis and motion analysis by mounting multiple high-performance circuits at each point of shirts and spats and tracking the movement of each point of the human body during sports and rehabilitation. In addition, if you wear clothes with a high-performance circuit that has at least a transmission circuit or a reception circuit, and install gates with a transmission circuit or a reception circuit at the start point and goal point, you can train alone and measure time alone. Is possible.

  Note that in this specification, at least one of the transmission circuit and the reception circuit has an antenna.

  In addition, since a large amount of electric power is required to drive various circuits, the present invention is characterized in that a plurality of piezoelectric elements are provided in sports equipment. Electric power is generated by distorting the piezoelectric element and amplified after being amplified by an amplifier circuit. Alternatively, the piezoelectric element may be distorted to generate power, and the charging means may be charged one after another each time power is generated.

  Further, a contactless power transmission module that can be charged in a non-contact manner may be mounted on the sports equipment. The non-contact power transmission module uses a magnetic induction system that magnetically couples a primary coil (charger) and a secondary coil (main body) and generates a voltage in the secondary coil with an alternating magnetic field generated from the primary coil. Charging is performed by a mechanism in which electric power is transmitted to the secondary coil side by contact.

  Further, an auxiliary power source (primary battery or secondary battery) for assisting the insufficient power, for example, a sheet-like battery may be mounted or attached.

  The configuration of the invention disclosed in this specification includes a piezoelectric element that generates a signal when the piezoelectric element is distorted by a given vibration or impact, an amplification circuit that is connected to the piezoelectric element and amplifies the signal, The sports equipment includes an instruction unit that determines whether or not the amplified signal can be applied to the piezoelectric element.

  According to another aspect of the invention, there is provided a piezoelectric element that generates a signal when the piezoelectric element is distorted by a given vibration or impact, an amplification circuit that is connected to the piezoelectric element and amplifies the signal, and is amplified. The sports equipment includes: instruction means for determining whether or not the applied signal can be applied to the piezoelectric element; a power supply circuit connected to the amplifier circuit; and a charging means connected to the power supply circuit.

  According to another aspect of the invention, there is provided a piezoelectric element that generates a signal when the piezoelectric element is distorted by a given vibration or impact, an amplification circuit that is connected to the piezoelectric element and amplifies the signal, and is amplified. Instructing means for determining whether or not to apply the signal to the piezoelectric element, a power supply circuit connected to the amplifier circuit, a charging means connected to the power supply circuit, and a power generation means connected to the charging means It is a sports equipment characterized by this.

  In each of the above structures, the amplifier circuit includes a TFT. Since TFT is strong against bending and thin, it is suitable for mounting on sports equipment.

  Further, in each of the above-described configurations, one of the features is that the sports equipment includes a receiving circuit including an antenna that receives a signal that determines whether or not a voltage can be applied to the piezoelectric element. By doing so, it is possible to mount a circuit capable of transmitting and receiving sports equipment.

  In each of the above-described configurations, the sports equipment may further include a rectifier that rectifies the amplified signal before being applied to the piezoelectric element.

  Further, in each of the above-described configurations, the sports equipment is characterized in that the piezoelectric element is distorted by a given vibration or impact to generate electric power and is heated or cooled by the electric power.

According to another aspect of the invention, there is provided a first piezoelectric element that generates a signal when the first piezoelectric element is distorted by a given vibration or impact, the first piezoelectric element is connected to the first piezoelectric element, and the signal A first amplifying circuit for amplifying the signal, instruction means for determining whether the amplified signal can be applied to the first piezoelectric element, a power supply circuit connected to the first amplifying circuit, and a given vibration Or a second piezoelectric element that generates power when the second piezoelectric element is distorted by an impact, and a second amplifier circuit that is connected to the second piezoelectric element and the power supply circuit and that amplifies the power. , Sports equipment characterized by having

  One feature of the above structure is that the first amplifier circuit includes a TFT. Since TFT is strong against bending and thin, it is suitable for mounting on sports equipment.

  In the above configuration, the sports equipment includes a receiving circuit including an antenna that receives a signal that determines whether or not voltage application to the first piezoelectric element is possible. By doing so, it is possible to mount a circuit capable of transmitting and receiving sports equipment.

  In the above configuration, the sports equipment may further include a rectifying unit that rectifies the amplified signal before being applied to the first piezoelectric element.

  In the above structure, the sports equipment is characterized in that the first piezoelectric element is distorted by a given vibration or impact to generate electric power and is heated or cooled by the electric power.

In another aspect of the invention, a first piezoelectric element, a second piezoelectric element, a first amplifier circuit including a TFT, a second amplifier circuit including a TFT, and the first piezoelectric element are provided. Instructing means for determining whether or not voltage application is possible, and charging means for generating power by distorting the second piezoelectric element due to a given vibration or impact, amplifying a signal by the second amplifier circuit, and charging It is a sports equipment characterized by having.

  Since the user can adjust the characteristics of the sports equipment, it is possible to provide sports equipment that is easy to operate for a wide range of players regardless of the user's strength, physique, and the like.

  According to another aspect of the invention, there is provided a piezoelectric element, an amplifier circuit including a TFT, an instruction unit that determines whether or not voltage application to the piezoelectric element is possible, a display unit that displays whether or not the instruction unit is available, And a charging means for amplifying and charging a signal by the amplifier circuit.

  In the present invention, since the user adjusts the sports equipment, if the sports equipment is provided with a display unit, the adjusted value can be output and displayed, which is convenient for the user to recognize. The output display is preferably performed by a display device using an electroluminescence element (EL element). Further, the display device may be simple monochromatic light emission or display of only numbers. Further, according to the present invention, a circuit can be formed on the same substrate as the display device and can be mounted on sports equipment.

  In the case of sports equipment in which a display unit is difficult to mount, a transmission circuit may be provided in the sports equipment, and a signal from a reception circuit provided in the external terminal may be received so that the display can be confirmed on the external terminal.

  In another aspect of the invention, a first piezoelectric element, a second piezoelectric element, a first amplifier circuit including a TFT, a second amplifier circuit including a TFT, and the first piezoelectric element are provided. And a receiving circuit that receives a signal for determining whether or not to apply a voltage is generated, and the second piezoelectric element is distorted by a given vibration or impact to generate power, and the second amplifier circuit amplifies and charges the signal. A sports equipment comprising charging means.

  Moreover, you may adjust sports goods by remote control using an external terminal. In that case, if a system is provided that can be adjusted by providing a receiving circuit in sports equipment, receiving a signal from a transmitting circuit provided in an external terminal, processing the central processing unit, and rewriting the setting of the storage unit Good. Further, if a transmission / reception circuit is provided in the sports equipment, it is possible to check whether other circuits mounted on the sports equipment are normal.

  In order to drive the central processing unit, it is preferable to provide a charging unit, and the configuration of another invention includes a first piezoelectric element, a second piezoelectric element, a first amplifier circuit including a TFT, A second amplifier circuit including a TFT; a central processing unit that controls voltage application to the first piezoelectric element; and the second piezoelectric element is distorted by a given vibration or impact to generate electric power, and the first And a charging means for amplifying and charging a signal by the amplifier circuit of 2, wherein the central processing unit includes a TFT.

  Further, in order to drive a high-functional circuit such as a central processing unit, there is a possibility that the electric power of the piezoelectric element obtained by an impact given to sports equipment may be insufficient. Therefore, it is preferable that a power generation means for assisting the insufficient power, for example, a photovoltaic power generation device (such as a solar cell) or a thermoelectric power generation device (such as a Seebeck element) can be mounted or attached to sports equipment.

  According to another aspect of the invention, a piezoelectric element, an amplifier circuit including a TFT, a central processing unit that controls voltage application to the piezoelectric element, power generation means, and the amplifier circuit amplifies and charges the signal. And a charging means, wherein the central processing unit includes a TFT.

In each of the above structures, the piezoelectric material used for the piezoelectric element is a single crystal such as quartz, LiNbO ₃ , LiTaO ₃ , or a ceramic material such as PZT, or polyvinylidene fluoride (PVDF), vinylidene fluoride, and ethylene fluoride. Or a high molecular weight material such as a copolymer, or a semiconductor sputtered thin film such as ZnO, CdS, or AlN. In addition, ceramic fibers that produce a piezoelectric effect (typically intelligent fibers) and plastic sheets that produce a piezoelectric effect (ceramic powder, tourmaline powder, crystal and Rochelle salt pieces, or barium titanate pieces) ) May be used. When the TFT and the piezoelectric element are integrally formed, the polymer material, the semiconductor sputtered thin film, or the plastic sheet is desirable.

  In addition, a circuit using a TFT (hereinafter also referred to as a TFT circuit) and a piezoelectric element are appropriately arranged on a sporting item by utilizing the fact that the TFT generates heat when driven.

  According to another aspect of the invention, there is provided a piezoelectric element and a circuit including a TFT. The piezoelectric element is distorted by a given vibration or impact to generate electric power, and the electric power is used to drive the circuit including the TFT. The sports equipment is characterized by heating or cooling.

  In the above structure, the circuit including the TFT is an amplifier circuit, a central processing unit, a temperature control generation circuit, or a reception circuit.

  For example, if a TFT circuit is installed in a place close to the snow surface of a ski board or snowboard board (excluding the sole surface), the sole can be indirectly heated by the heat generated by the TFT, so that the running speed increases. Also, the skiing speed may be increased by installing a TFT circuit near the edge of the ski or snowboard and indirectly heating the edge. When a circuit including a TFT is installed near the edge, it is preferable to install the circuit on the nose side instead of the tail side that catches the snow surface when stopping.

  Also in ice skating shoes, a piezoelectric element may be arranged on the sole, and a circuit including a TFT may be installed near the edge to indirectly warm the edge to increase the running speed.

  In addition, an amplification circuit including a piezoelectric element and a TFT may be installed in the snowboard boot, ski boot, or binding. In addition, when various circuits are mounted, it is preferable to install a central processing unit (CPU) including TFTs. When sliding, the boots and bindings are also subject to vibration and shock, just like the board. For example, a piezoelectric element is arranged on the sole part of the boot, the generated power is charged in the charging part, and the degree of fixation by the part surrounding the foot other than the sole of the foot is adjusted by switching the switch according to the user's instruction You may be able to do it. Moreover, shock absorption is also effectively performed by providing the piezoelectric element in the sole part of the boot.

  In addition, a piezoelectric element is provided on the sole part of the boot, preferably on the arch, and the TFT circuit arranged on the toe part is heated by using the electric power generated by the vibration and impact received by the sole part, thereby easily cooling the foot. It is possible to indirectly heat the toes or prevent heat dissipation to the outside due to a rapid temperature difference. Further, instead of being incorporated in the boot, an insole provided with an amplifier circuit including a piezoelectric element and a TFT may be installed in the boot.

  Further, an amplifying circuit including a piezoelectric element and a TFT may be installed in the running shoes. In addition, when various circuits are mounted, it is preferable to install a central processing unit (CPU) including TFTs. A piezoelectric element is disposed in the sole portion, and the feet are heated by generating heat in the TFT circuit when it is cold using power generated by vibration or impact received by the sole portion. Further, when hot, the foot is cooled by separately providing a Peltier element and supplying electric power from the piezoelectric element to drive the Peltier element. Further, a temperature sensor may be installed, and heating and cooling may be switched by automatically controlling the CPU according to the temperature.

  In addition, an amplification circuit including a piezoelectric element and a TFT may be installed in indoor sports shoes. In addition, when various circuits are mounted, it is preferable to install a central processing unit (CPU) including TFTs. For example, in a basket, the softer the sole surface, the stronger the grip and the less slipping. If the thickness of the sole is reduced, it can be warmed at the temperature of the user's foot, but there is only a way to warm it by friction with the floor to provide a certain thickness or air cushion to absorb the shock. . Accordingly, a piezoelectric element is provided in the sole portion of the shoe, preferably on the arch, and the sole surface made of resin is softened by rapidly heating the entire sole surface using the electric power generated by the vibration and impact received by the sole portion.

  In each of the above-mentioned configurations, the sports equipment includes hitting sports equipment such as tennis rackets, baseball bats, baseball gloves, boxing gloves, and golf clubs, and winter sports such as skis, snowboard boards, ski wear, and snowboard wear. Goods, insoles and shoes.

  In addition to the sports equipment as described above, various circuits may be mounted on training equipment, for example, training equipment deformed by the user, training machine, health equipment using muscles, gaming equipment, and the like. In the training apparatus, by loading the circuit, the load can be changed according to the number of times of repeated vibration.

  According to another aspect of the invention, there is provided a piezoelectric element, an amplifier circuit, and a light emitting element. The piezoelectric element is distorted by a given vibration or impact to generate electric power, and the light emitting element emits light by the electric power. This is an amusement product characterized by that.

  In the above structure, the amplifier circuit includes a TFT. Since the TFT is strong against bending and thin, it is suitable for mounting on a game product having a curved surface.

  In the above configuration, the game product may further include a central processing unit, a receiving circuit including an antenna, and the like in addition to the amplifier circuit.

  In the above configuration, the gaming equipment is a ball, a glove, or a shoe.

According to another aspect of the invention, there is provided a piezoelectric element, an amplifier circuit, and a receiving circuit including an antenna. The piezoelectric element is distorted by a given vibration or impact, and the power is generated. And a training article that is supplied to the receiving circuit.

  In the above structure, the amplifier circuit includes a TFT. The TFT is suitable for mounting on a training article because it is strong against bending, thin, and light.

In the above structure, a central processing unit and a storage element may be further provided in addition to the amplifier circuit.

In the above configuration, the training article is a training machine, training wear, ski wear, snowboard wear, or shoes.

  According to the present invention, various circuits can be integrated, and sports equipment having an adjustment function can be provided. In addition, the user can freely adjust the characteristics of the sports equipment by himself.

  Embodiments of the present invention will be described below. However, the present invention is not limited to the following description, and it is easily understood by those skilled in the art that modes and details can be variously changed without departing from the spirit and scope of the present invention. Therefore, the present invention should not be construed as being limited to the description of the embodiments below.

(Embodiment 1)
FIG. 1 shows a block diagram of circuits and elements mounted on a sports equipment.

  A plurality of piezoelectric elements are provided in the sporting goods, but here, in order to simplify the description, two piezoelectric elements (first piezoelectric element 100 and second piezoelectric element 105) will be described.

  When the sports equipment that the user has is subjected to vibration or impact, each piezoelectric element is distorted and generates electricity. Since vibration and impact are converted into electric energy by the piezo effect, vibration of sports equipment can be reduced.

  The electric power generated by the first piezoelectric element 100 is rectified by the first rectifying means 102. The first rectifier 102 is configured by appropriately using an amplifier circuit, a smoothing circuit, a waveform shaping circuit, a buffer amplifier, a switch circuit, a resistor, and the like. Of the first rectifying means 102, at least n-fold amplification circuit 101 is formed of TFTs. Note that since the TFT has a small current capability of the element, it is necessary to increase the element to increase the current capability.

  Further, the smoothing circuit can be formed by a resistor and a capacitor, and can also be formed simultaneously in the TFT forming process. The waveform shaping circuit can also be formed by an inverter using TFTs.

  Here, an example in which an amplifier circuit using a TFT and a piezoelectric element are integrally formed is shown in FIG. 2A shows a cross-sectional structure diagram, and FIG. 2B shows an equivalent circuit diagram.

  In FIG. 2A, 10 is a film substrate, 11 is an adhesive layer, 12 is a base insulating film, and 13 is a gate insulating film. Since vibration is transmitted through the film substrate 10, the adhesive layer 11, the base insulating film 12, and the gate insulating film 13, it is desirable that all of these materials be flexible materials. The film substrate 10 is a plastic substrate (thickness: 200 μm to 500 μm). Furthermore, the film substrate 10 is preferably low in thermal expansion.

  The piezoelectric element 25 includes a first electrode 23, a second electrode 19, and a piezoelectric material layer 21 sandwiched between the first electrode and the second electrode.

  In addition, an amplifier circuit provided on the same substrate for amplifying the output value of the piezoelectric element 25 is configured by a current mirror circuit including n-channel TFTs 30, 31, and 60. In FIG. 2B, in order to make X times, one n-channel TFT 30 is provided, and the first n-channel TFT 31 and the X-th TFT 60 are provided in total (X + 1). For example, in order to achieve 100 times, one n-channel TFT 30 (channel size L / W = 8 μm / 50 μm) and 100 first to 100th n-channel TFTs (channel size L / W = 8 μm / 50 μm) Provide. When two n-channel TFTs 30 are provided, two n-channel TFTs 30 and ten n-channel TFTs 31 are provided in order to increase the output value by five times.

  Further, in order to amplify the output value, the amplifier circuit may be composed of an operational amplifier (op-amp) in which n-channel TFTs or p-channel TFTs are appropriately combined, but has five terminals. In addition, an operational amplifier can be configured by an operational amplifier and a level shifter can be used to reduce the number of power supplies to four terminals.

  Further, although the n-channel TFTs 30 and 31 are examples of top gate TFTs having a single gate structure, variations may be reduced by using a double gate structure. In order to reduce the off-current value, the n-channel TFTs 30 and 31 may have a lightly doped drain (LDD) structure. In this LDD structure, a region to which an impurity element is added at a low concentration is provided between a channel formation region and a source region or a drain region formed by adding an impurity element at a high concentration. It is called. The LDD structure has the effect of relaxing the electric field in the vicinity of the drain and preventing deterioration due to hot carrier injection. In order to prevent deterioration of the on-current value due to hot carriers, the n-channel TFTs 30 and 31 may have a GOLD (Gate-drain Overlapped LDD) structure. The GOLD structure in which the LDD region is disposed so as to overlap the gate electrode with the gate insulating film interposed therebetween has an effect of relaxing the electric field in the vicinity of the drain and preventing deterioration due to hot carrier injection as compared with the LDD structure. By adopting such a GOLD structure, the electric field strength in the vicinity of the drain is relaxed to prevent hot carrier injection and to effectively prevent the deterioration phenomenon.

  The wiring 14 is a wiring connected to the electrode 19 and also extends to the channel formation region of the TFT 30 of the amplifier circuit and serves as a gate electrode.

  The wiring 15 is connected to the electrode 23 and is connected to the drain electrode or the source electrode of the TFT 31. 16 and 18 are inorganic insulating films, 17 is an insulating film formed by a coating method, and 20 is a connection electrode.

  The terminal electrode 50 is formed in the same process as the wirings 14 and 15, and the terminal electrode 51 is formed in the same process as the electrodes 19 and 20.

  Thus, by forming the piezoelectric element and the amplifier circuit on the same substrate, noise can be reduced and the output value can be efficiently amplified. In addition to the amplifier circuit, other circuits can be formed using TFTs. An example is shown in FIG.

  FIG. 5A shows an equivalent circuit diagram in which the switch circuit is composed of a p-channel TFT and an n-channel TFT. FIG. 5B shows an equivalent circuit diagram in which the inverter circuit is constituted by TFTs. FIG. 5C shows an equivalent circuit diagram of a p-channel TFT in which a rectifying element is diode-connected in a circuit in which two switch elements and a rectifying element are combined. FIG. 5D is an equivalent circuit diagram in which a rectifying element is composed of an n-channel TFT in which a rectifying element is diode-connected in a circuit in which a switch element and a rectifying element are combined.

  The instruction unit 103 includes a switch. The switch is a switch that is turned on by temperature, pressure, or an external signal, a switch that is operated by a human, and the like. The instruction means 103 here is an instruction means for the user to freely turn the signal switch on or off. When the user turns on the signal switch, a control signal is generated by the control signal generation circuit 104, and the signal is supplied to the first piezoelectric element 100, whereby the distortion of the sports equipment can be controlled. In other words, the control signal generation circuit 104 generates an electrical signal that generates an anti-phase vibration that cancels out the wavelength generated by the vibration or impact received by the sports equipment.

  Therefore, as the piezoelectric material of the first piezoelectric element 100, it is preferable to use a piezoelectric material having a characteristic that the shape of the piezoelectric element is restored by an electric signal. In addition, since the first piezoelectric element 100 changes the characteristics of the sporting goods by restoring the shape of the piezoelectric element, it is preferable that the first piezoelectric element 100 has a size as large as possible when the characteristics are significantly changed.

  Further, when the user turns off the signal switch, a signal for controlling distortion is not formed.

  In this way, the user can change the signal switch to ON or OFF so that the sports equipment exhibits two behaviors.

  In addition, the present invention is not limited to the above two behaviors, and if a circuit (such as a CPU) that allows fine adjustment in multiple stages is installed, the user can adjust the characteristics of the sports equipment in multiple stages. The operation can be performed.

  In addition, the present invention includes a charging unit and enables operation without requiring external power supply. The electric power generated by the second piezoelectric element 105 is rectified by the second rectifying means 107. The second rectifier 107 is also configured using an amplifier circuit, a smoothing circuit, a waveform shaping circuit, a buffer amplifier, a switch circuit, a resistor, and the like as appropriate. Of the second rectifying means 107, at least the m-fold amplification circuit 106 is formed of a TFT.

  Further, the charging control circuit 108 and the charging means 109 charge the pulsating flow obtained by the second rectifying means 107 as a direct current. As the charging means 109, a secondary battery is preferable. The power supply circuit 110 adjusts the voltage of each circuit using the power supplied from the charging unit 109.

  In order to secure more power, when the switch of the instruction unit 103 is off, the power generated by the first piezoelectric element 100 may be charged by the charging unit 109.

  Further, since the second piezoelectric element 105 performs only power generation, the size of the second piezoelectric element 105 may be smaller than that of the first piezoelectric element if the magnification of the amplifier circuit 106 is increased. In addition, the second piezoelectric element 105 does not need to use a piezoelectric material having a characteristic that the shape of the piezoelectric element is recovered by an electrical signal, unlike the first piezoelectric element, and the second piezoelectric element 105 includes the first piezoelectric element 105 A piezoelectric material different from the piezoelectric element may be used.

(Embodiment 2)
Here, an example in which a display unit is mounted on sports equipment in order to display on / off by the instruction means is shown. FIG. 3 shows a block diagram.

  FIG. 3 is the same as FIG. 1 except that the display unit 130 is provided and the power generation unit 150 is provided, and thus detailed description of the same parts is omitted. In FIG. 3, the same parts as those in FIG.

  The display unit 130 is preferably a display device using an electroluminescence element (EL element). Further, when an active matrix display device is formed using an electroluminescence element, it can be integrated with an amplifier circuit on the same substrate and can be mounted on a sports equipment. In addition, the display device to be mounted may be a simple matrix light emission or display of only numbers, and thus may be a passive matrix display device.

  Further, the power generation means 150 is not limited to a piezoelectric element, and a photovoltaic device (such as a solar cell) or a thermoelectric generator (such as a Seebeck element) may be used. A plurality of types of power generation devices may be mounted on the sports equipment. A solar cell using amorphous silicon can be integrally formed with an amplifier circuit on the same substrate and can be mounted on sports equipment.

Further, this embodiment mode can be freely combined with Embodiment Mode 1.

(Embodiment 3)
In the case of sports equipment that is difficult to be equipped with a display unit or instruction means, a transmission circuit may be provided in the sports equipment, and a signal from a reception circuit provided in the external terminal may be received so that the display can be confirmed on the external terminal. .

  Here, an example in which the receiving circuit is mounted on sports equipment is shown. FIG. 4 shows a block diagram.

  4 is the same as FIG. 1 except that the receiving circuit 406, the CPU 410, and the storage unit 411 are provided, and the external terminal 400 is used. Therefore, detailed description of the same parts is omitted. In FIG. 4, the same reference numerals are used for the same portions as in FIG.

  A flow in the case where sports equipment is adjusted by remote control using the external terminal 400 will be described. First, a person (including a user) who wants to change the characteristics of sports equipment selects a desired setting using the instruction means 403 provided in the external terminal 400 and transmits a signal. The signal is transmitted from the transmission circuit 405 to the reception circuit 406 provided in the sports equipment via the communication control circuit 404.

The desired setting can be confirmed on the display unit 430. Reference numeral 409 denotes a power source for the external terminal 400, which supplies power to each circuit of the external terminal 400.

  Then, the reception circuit 406 receives the signal, and the central processing unit 410 processes the signal based on the signal to rewrite the setting of the storage unit 411. A signal is formed by the control signal generation circuit 104 according to the rewritten setting of the storage unit 411, and distortion control is performed.

  In FIG. 4, reference numeral 410 denotes a central processing unit (also referred to as a CPU), 402 denotes a control unit, 401 denotes a calculation unit, and 411 denotes a storage unit (also referred to as a memory).

  The central processing unit 410 is a combination of the arithmetic unit 401 and the control unit 402. The arithmetic unit 401 is an arithmetic logic arithmetic unit (arithmetic that performs arithmetic operations such as addition and subtraction and logical operations such as AND, OR, and NOT. logic unit (ALU), various registers for temporarily storing operation data and results, and a counter for counting the number of input ones. A circuit constituting the arithmetic unit 401, for example, an AND circuit, an OR circuit, a NOT circuit, a buffer circuit, a register circuit, or the like can be formed using a TFT. In order to obtain high field effect mobility, a semiconductor film crystallized using a continuous wave laser beam may be formed as an active layer of a TFT.

  The control unit 402 executes a command stored in the storage unit 411 and controls the overall operation. The control unit 402 includes a program counter, an instruction register, and a control signal generation unit. In addition, the control unit 402 can also be formed of a TFT, and a crystallized semiconductor film may be formed as an active layer of the TFT.

  The storage unit 411 is a place for storing data and instructions for calculation, and stores data and programs that are frequently executed by the CPU. The storage unit 411 includes a main memory, an address register, and a data register. Further, a cache memory may be used in addition to the main memory. These memories may be formed by SRAM, DRAM, flash memory, or the like. In the case where the memory portion 411 is also formed using a TFT, a crystallized semiconductor film can be manufactured as an active layer of the TFT.

  First, a tungsten film and a silicon oxide film are formed on a glass substrate by sputtering, a base insulating film (silicon oxide film, silicon nitride film, or silicon oxynitride film) is formed thereon, and an amorphous silicon film is formed thereon. Form. Note that separation is performed in a later step using a tungsten oxide layer formed at the interface between the tungsten film and the silicon oxide film.

  As a crystallization method, a method may be used in which after adding a metal element as a catalyst to an amorphous silicon film, a polysilicon film is obtained by heating and then a polysilicon film irradiated with a pulsed laser beam is obtained. Alternatively, a method of obtaining a polysilicon film by irradiating the amorphous silicon film with a continuous wave laser beam may be used, or a continuous wave laser beam may be applied after heating the amorphous silicon film to obtain a polysilicon film. A method of obtaining a polysilicon film by irradiation may be used, or after adding a metal element as a catalyst to an amorphous silicon film, heating to obtain a polysilicon film, and then irradiating a continuous oscillation type laser beam A method for obtaining a polysilicon film may be used. Thereafter, the TFT is completed using a known technique.

  A TFT using the polysilicon film thus obtained as an active layer constitutes a CPU and a memory portion, and a layer to be peeled including the CPU and the memory portion is peeled off from the glass substrate and transferred to a plastic substrate. If a CPU can be installed, a wide variety of settings can be made in sports equipment.

  Further, instead of the second piezoelectric element 105, other power generation means may be provided. For example, a photovoltaic device (such as a solar cell) or a thermoelectric generator (such as a Seebeck element) may be used. A plurality of types of power generation devices may be mounted on the sports equipment. A solar cell using amorphous silicon can be integrally formed with an amplifier circuit on the same substrate and can be mounted on sports equipment.

Further, this embodiment can be freely combined with Embodiment 1 or Embodiment 2.

  The present invention having the above-described configuration will be described in more detail with the following examples.

  In this embodiment, an example in which the present invention is applied to a tennis racket is shown in FIG.

  Since the circuit is constituted by TFTs provided on a flexible plastic film, the circuit can be mounted in a free shape, for example, a curved portion or an elongated portion. Therefore, the circuit can be provided not only in the grip portion of the racket but also in a thin portion of the frame. Since installation space can be secured, various circuits including TFTs can be arranged. Here, the circuit is provided only in a part of the frame portion, but the circuit may be arranged over a larger portion, for example, the entire frame surface.

  It is also possible to integrally form a piezoelectric element and a circuit including a TFT. When integrally formed, noise can be prevented from being superimposed.

  Specifically, as shown in FIG. 6 as an example, the racket 600 is provided with piezoelectric elements 601, 603, and 608 at a plurality of locations, and amplification circuits 602, 604, and 609 including TFTs are mounted on the frame portion. Here, the term “mounting” may be provided inside the frame, or may be attached to the frame and covered with a protective film. In addition to the amplifier circuit, other rectifiers such as a smoothing circuit, a waveform shaping circuit, a buffer amplifier, a switch circuit, and a resistor may be integrally formed with the amplifier circuit.

  The grip portion includes a changeover switch 606, a control signal generation circuit 605, an integrated circuit (a power supply circuit, a memory, a CPU, a reception circuit, etc.) 607 including a TFT, and a battery (preferably a rechargeable secondary battery). 610 is installed. Further, a rectifier, for example, a smoothing circuit, a waveform shaping circuit, a buffer amplifier, a switch circuit, a resistor, or the like may be integrally formed with the integrated circuit 607. As a block diagram, FIG. 1 or FIG. 4 may be referred to.

  The mechanical energy of impact with the ball is changed to electric energy by the piezoelectric elements 601, 603, and 608, and the electric energy is amplified by the amplifier circuits 602, 604, and 609. By constituting the amplifier circuit with a TFT of plastic film, it can be provided in contact with the piezoelectric element or in the vicinity of the piezoelectric element. Therefore, the electric power generated by the piezoelectric element can be immediately amplified and used.

  The first piezoelectric elements 601 and 608 also serve to control frame distortion by a signal from the control signal generation circuit 605. In addition, the amplification circuits 602 and 609 may have an amplification factor of 2 times or more, preferably 10 to 50 times. Note that the control signal generation circuit 605 forms an electrical signal that generates an anti-phase vibration that cancels out the wavelength generated by the vibration or shock received by the racket.

  In this embodiment, in order to mount various circuits on the racket, a second piezoelectric element 603 for securing electric power and an amplifier circuit 604 having a large amplification factor, for example, an amplification factor of 100 times are provided. The second piezoelectric element 603 may be small in size, and may use a piezoelectric material or an element structure having a higher conversion efficiency than the first piezoelectric element.

  For example, when the tennis racket of FIG. 6 is used, the neutral setting in which the switch 606 is turned off, and the switch 606 is turned on to apply the signal from the control signal generation circuit 605 to the first piezoelectric elements 601 and 608. Thus, the distortion of the frame can be controlled, and a two-stage setting can be made, which is a positive setting in which the rigidity of the frame is increased compared to the neutral setting.

  In the neutral setting, the vibration of the racket is reduced by converting vibration and impact into electric energy by the piezoelectric effect by the piezoelectric elements 601, 603, and 608. Note that, in the neutral setting, the second piezoelectric element 603 immediately amplifies and rectifies the generated power, and further charges the battery 610.

  In the plus setting, vibration and impact are converted into electric energy by the piezoelectric effect by the piezoelectric elements 601 and 608, and the distortion of the frame where the piezoelectric elements 601 and 608 are provided is controlled using the electric energy. ing. A signal for controlling the distortion of the frame is formed by the control signal generation circuit 605 or the integrated circuit 607. Each circuit is supplied with power from a battery 610.

  By switching the switch 606 provided on the racket, the user can select the racket setting at the user's will. Therefore, even if the user has the same power during the racket swing, two types of return balls can be made by changing the racket setting.

  If the plus setting is used, the rigidity of the frame increases, and a fast return can be performed with a small power on a fast ball or a slow ball. In the plus setting, since the frame has high rigidity, the contact time with the ball is short, and the ball is difficult to rotate. Therefore, in the plus setting, the user's technique is required to spin and return the ball. Also, in the plus setting, the user's technique is required to kill the fast ball and return the slow ball.

  Therefore, when it is desired to return the ball by spinning it, the neutral setting can be used to lengthen the contact time with the ball to realize high-rotation spin and control of the return direction. Further, by setting the neutral setting, it is possible to kill the momentum of the fast ball and return the slow ball.

  Conventionally, a user's advanced technique was required to perform various return balls with a single racket. However, if the racket of the present invention is used, setting of the racket is possible without requiring an advanced technique. Various return balls can be performed by changing.

  Further, even if the user has the same form or power, different return balls are possible, making it difficult for the opponent to read the return ball and allowing the game to proceed with advantage.

  Moreover, since the tension of the gut is lowered as the conventional racket is used, professional players often change the racket during the game. With the racket of the present invention, even if the tension of the gut in the neutral setting decreases with the frequency of use, the same level of response can be maintained by setting the plus.

  In addition, if the CPU 606 is not limited to the two-stage setting, and a CPU or a memory capable of fine adjustment as a multi-stage setting can be incorporated in the integrated circuit 607, the racket setting can be freely changed, and the return ball desired by the user realizable. If the technique described in Japanese Patent Application Laid-Open No. 2003-174153 is used, the CPU and the memory can also be formed of TFTs and formed on a plastic film.

  Further, the integrated circuit 607 incorporating the CPU and the memory may be freely attached and detached. The setting of the racket can be changed by attaching and detaching the integrated circuit 607 including the CPU and the memory.

  This embodiment can be freely combined with Embodiment Modes 1 to 3. For example, this example may be combined with the second embodiment, and a simple display unit that allows the user to recognize the current setting of the racket may be provided on the racket 600. Further, an integrated circuit 607 incorporating a power generation unit such as a solar cell may be provided. In order to eliminate the need to replace the battery 610, the racket 600 may be provided with a contactless power transmission module that can be charged in a contactless manner.

  Further, this embodiment is combined with Embodiment Mode 3, a receiving circuit is incorporated in the integrated circuit 607, a signal from an external terminal (not shown) provided with a transmitting circuit is received, and signal processing is performed by the integrated circuit 607. The racket setting may be changeable. If the setting of the racket can be changed by the external terminal, the racket structure can be simplified without providing the racket 600 with a switch.

  FIG. 7 shows an example in which the present invention is applied to a snowboard board as an example of winter sports equipment.

  In the conventional snowboard board, the user can set only the stance width and the angle angle, and the flex of the board, that is, the rigidity of the board differs depending on the product. Therefore, various flex boards are prepared at the store.

  Conventionally, the user has to purchase a hard flex board if a hard flex board is required, or to purchase a soft flex board if a soft flex board is required.

  Actually, the optimum flex differs depending on the snow quality and application.For example, a soft flex board has excellent operability during sliding in light snow quality, and a hard flex board in heavy snow quality. Is superior in stability during sliding.

  In addition, in snowboarding, in addition to half pipes and jumping stands, in recent years, snowboards are used to ride on box-shaped obstacles called metal rails or boxes. For half pipes, jump tables and rails, a stiff flex is more stable.

  However, a rigid flex board will not bend unless it is loaded with a larger load than a soft flex board when bending by bending the board due to the load of the foot when sliding, and there will be no muscular strength and powerless users and techniques It is difficult to handle for users. In general, it is said that beginners are suited for soft flexboards and advanced users are suited for hard flexboards. That is, with snowboards, as the user progresses, the board flex suitable for the user changes, so it is natural to buy a new board each time.

  In this embodiment, as shown in FIG. 7, an integrated circuit such as piezoelectric elements 702 and 703 and an amplifier circuit 704 using TFT is mounted on a snowboard board 700, and the user adjusts the flex of the board. It is possible to do. Here, the term “mounting” may be provided inside the plate, or may be attached to the plate and covered with a protective film.

  Conventionally, it was necessary to change the board as the user progressed. However, if the snowboard of the present invention is used, the flex of the snowboard board can be adjusted according to the improvement of the user, and a board suitable for the user can be obtained. Can be provided. Moreover, if the snowboard of this invention is used, the flex of a snowboard board can be freely set according to snow quality and a use.

  Specifically, the first piezoelectric element 702 is provided in a place where the plate is desired to be hardened, typically in the vicinity of the edge, and the second piezoelectric member is provided in a place where the plate is most easily deformed, typically in the vicinity of the binding attachment position 701. A piezoelectric element 703 is provided. The second piezoelectric element 703 is provided symmetrically on both the toe side and the heel side with the binding attachment position 701 interposed therebetween. In addition, although the piezoelectric element 703 is provided in a total of four places, the arrangement | positioning location and number in particular are not limited. The snowboard board has a certain width and does not have trouble in the circuit installation position. The mechanical energy resulting from the deformation of the plate due to vibration or impact with the snow surface during sliding is converted into electrical energy by the piezoelectric element 703, and the electrical energy is amplified by the amplification circuit 704. By forming the amplifier circuit 704 with a plastic film TFT, the amplifier circuit 704 can be provided in contact with or in the vicinity of the second piezoelectric element. Therefore, the electric power generated by the second piezoelectric element can be immediately amplified and used.

  The generated power is immediately amplified and rectified by an integrated circuit 706 including TFTs, and the battery 707 is charged.

  The instruction unit 705 includes a switch. The switch is a switch that is turned on by temperature, pressure, or an external signal, a switch that is operated by a human, and the like. The instruction means 705 here is an instruction means for the user to freely turn on or off the signal switch.

  When the user turns on the signal switch, power is supplied from the battery, and a signal for controlling the distortion of the plate is formed in the integrated circuit (power supply circuit, control signal generation circuit, memory, CPU, reception circuit, etc.) Applied to the first piezoelectric element 702. The first piezoelectric element 702 is disposed on both the toe side and the heel side with the binding attachment position 701 interposed therebetween. Note that although the first piezoelectric element 702 is arranged on the edge side of the second piezoelectric element 703 and is provided at a total of four places, the arrangement position and the number of the first piezoelectric elements 702 are not particularly limited. The first piezoelectric element 702 is applied with an electrical signal that generates an anti-phase vibration that cancels a wave generated by the vibration or impact received by the plate. Thus, by turning on the signal switch, the user can harden the flex of the board.

  In general, the right foot and the left foot have different muscular strength, so by applying different signals between the first piezoelectric element disposed on the right foot side and the first piezoelectric element disposed on the left foot side, The stiffness of the plate near the right foot may be different from the stiffness of the plate near the left foot. By changing the rigidity of the board according to the muscle strength of the right and left feet, the user can obtain a uniform bending of the board on the left and right sides of the board even when different loads are applied to the left and right legs. It becomes easy to draw an arc.

  Further, by applying different signals between the first piezoelectric element arranged on the toe side and the first piezoelectric element arranged on the heel side, the rigidity of the toe side plate and the rigidity of the heel side plate are obtained. It may be different. When a load is applied, the plate is easily twisted, that is, the torsion is increased, so that it is easy to draw a curve even with a small load.

  Further, the TFT generates heat when driven. The integrated circuit 706 including the TFT and the amplifier circuit 704 are driven to generate heat. This heat generation may be used to indirectly heat the sole surface to reduce the frictional resistance with the snow surface and improve the snowboard sliding speed.

  In addition, a heating element (such as a resistor) may be provided instead of the first piezoelectric element. For example, the rigidity of the plate may be lowered by softening the material in the vicinity of the heated portion by heating a portion of the plate having high overall rigidity. The resin used for one layer of the plate material is a material that can be softened by heating. Alternatively, the sliding speed may be improved by reducing the frictional resistance with the snow surface by causing the heating element to generate heat. However, when a heating element is provided, heating is performed by turning on the switch to soften the flex of the plate, so it is difficult to change the setting of the plate instantaneously.

  Further, the snowboard board has a laminated structure, and circuits 706 and 704 including TFTs may be formed in a sheet shape as a single layer.

  This embodiment can be freely combined with Embodiment Modes 1 to 3. For example, this example may be combined with the second embodiment, and a simple display unit that allows the user to recognize the current setting of the snowboard board may be provided on the snowboard board 700. Further, an integrated circuit 706 in which a power generation unit such as a solar battery is incorporated may be provided. Further, in order to eliminate the need to replace the battery 707, a contactless power transmission module that can be charged in a contactless manner may be provided on the snowboard board 700.

  Further, this embodiment is combined with Embodiment Mode 3, a receiving circuit is incorporated in the integrated circuit 706, a signal from an external terminal (not shown) provided with a transmitting circuit is received, and signal processing is performed by the integrated circuit 706. The setting of the snowboard board may be changeable. If the setting of the snowboard board can be changed by an external terminal, the appearance of the snowboard board can be simplified without providing a switch on the snowboard board 700.

  In this embodiment, an example in which the present invention is applied to a ski as an example of winter sports equipment is shown in FIG. FIG. 8A shows a top view of the ski on one side, and FIG. 8B is a schematic diagram showing a circuit arrangement on the back side of the ski on one side.

  In the conventional ski, only the binding position and the boot fixing strength of the binding can be set by the user, and the flex of the board, that is, the rigidity of the board differs depending on the product. Therefore, various flex boards are prepared at the store.

  In this embodiment, as shown in FIG. 8, an integrated circuit such as piezoelectric elements 802 and 803 and an amplifier circuit 804 using TFT is mounted on the ski board 800, and the user adjusts the flex of the board. It is possible to do. Here, the term “mounting” may be provided inside the plate, or may be attached to the plate and covered with a protective film.

  Further, the ski has a laminated structure, and circuits 806 and 804 including TFTs may be formed in a sheet shape as one layer.

  Specifically, the first piezoelectric element 802 is provided in a place where the plate is desired to be hardened, typically in the vicinity of the edge, and the second portion is provided in a place where the plate is most easily deformed, typically in the vicinity of the binding attachment position 801. A piezoelectric element 803 is provided. The second piezoelectric element 803 is provided symmetrically on both the thumb side and the little finger side with the binding attachment position 801 interposed therebetween. In addition, although the piezoelectric element 803 is provided in a total of four places with two boards, the arrangement | positioning location and the number in particular are not limited. The mechanical energy resulting from the deformation of the plate due to vibration or impact with the snow surface during sliding is converted into electrical energy by the piezoelectric element 803, and the electrical energy is amplified by the amplification circuit 804. By constituting the amplifier circuit 804 with a plastic film TFT, the amplifier circuit 804 can be provided in contact with the second piezoelectric element or in the vicinity of the second piezoelectric element. Therefore, the electric power generated by the second piezoelectric element can be immediately amplified and used.

  The generated power is immediately amplified and rectified by an integrated circuit 806 including TFTs, and the battery 807 is charged.

  The instruction unit 805 includes a switch, which is a switch that is turned on by temperature, pressure, or an external signal, a switch that is operated by a human, and the like. The instruction means 805 here is an instruction means for the user to freely turn the signal switch on or off.

  When the user turns on the signal switch, power is supplied from the battery, and a signal for controlling the distortion of the plate is formed in the integrated circuit (power supply circuit, control signal generation circuit, memory, CPU, reception circuit, etc.) 806. And applied to the first piezoelectric element 802. The first piezoelectric element 802 is applied with an electrical signal that generates an anti-phase vibration that cancels a wave generated by the vibration or impact received by the plate. Thus, by turning on the signal switch, the user can harden the flex of the board.

  In general, the right foot and the left foot have different muscular strengths. Therefore, the first piezoelectric element disposed on the right foot ski and the first piezoelectric element disposed on the left foot ski are different signals. , The rigidity of the ski on the right foot side and the rigidity of the ski on the left foot side may be made different. By changing the rigidity of the plate according to the strength of the right and left feet, the user can obtain a uniform bending of the two plates even when different loads are applied to the left and right feet, and even turns to the left and right. It becomes easy to draw an arc.

  Further, the TFT generates heat when driven. The integrated circuit 806 including the TFT and the amplifier circuit 804 are driven to generate heat. The sole surface may be indirectly heated using this heat generation to reduce the frictional resistance with the snow surface, thereby improving the skiing speed.

  Further, instead of the first piezoelectric element 802, a heating element (such as a resistor) may be provided. For example, the rigidity of the plate may be lowered by softening the material in the vicinity of the heated portion by heating a portion of the plate having high overall rigidity. The resin used for one layer of the plate material is a material that can be softened by heating. Alternatively, the sliding speed may be improved by reducing the frictional resistance with the snow surface by causing the heating element to generate heat. However, when a heating element is provided, heating is performed by turning on the switch to soften the flex of the plate, so it is difficult to change the setting of the plate instantaneously.

  In addition, this embodiment can be freely combined with any one of Embodiment Modes 1 to 3.

  In this embodiment, an example in which the present invention is applied to a snowboard boot as an example of winter sports equipment is shown in FIG. FIG. 9A shows an external view of the boot, and FIG. 9B is a schematic view showing a circuit arrangement in the sole portion of the boot.

  In this embodiment, a piezoelectric element 902 is disposed on the sole portion 901 of the boot 900, and mechanical energy such as impact with a snow surface or a plate is changed into electric energy by the piezoelectric element, and the electric energy is used. By providing the piezoelectric element 902 on the sole portion 901 of the boot, impact absorption is also effectively performed.

  Furthermore, utilizing the fact that heat is generated when the TFT is driven, circuits 903, 905, and 906 including the TFT are disposed on the sole portion of the boot 900 to heat the foot. Since the circuit including the TFT is thin and is a sheet-like device based on a flexible film, there is almost no sense of incongruity felt with the foot. Note that the circuit 903 including a TFT is a rectifying unit including an amplifier circuit, the circuit 905 including a TFT is a temperature control generation circuit including a CPU and a temperature sensor, and the circuit 906 including the TFT is a circuit that generates heat, meandering. Wiring or heating element. Further, the power generated by the piezoelectric element 902 may be charged by the charging unit 904.

  As shown in FIG. 9A, circuits 903 and 905 including TFTs are provided on the sole portion 901 of the boot, preferably on the arch where the arrangement space can be secured, and the piezoelectric element 902 arranged on the heel portion of the sole portion is provided. The circuit 906 including the TFT disposed on the toe portion is heated using the electric power generated by the received vibration or impact. By generating heat in the circuit 906 including the TFT, it is possible to indirectly heat the toes of the feet that are easily cooled, or to prevent heat dissipation to the outside due to a sudden temperature difference. Further, instead of being incorporated in the boot at the time of manufacture, an insole provided with a circuit including a piezoelectric element and a TFT may be installed in the boot.

  Further, the electric power generated by the piezoelectric element is charged by the charging unit 904, and an instruction means (not shown) is provided on the outer surface of the boot, and the feet other than the sole of the foot are enclosed by switching according to the user's instruction. The boot characteristics such as the fixing degree and rigidity of the portion may be controlled by the CPU so as to be adjusted.

  Further, the present invention can be applied not only to the boots for snowboards shown in this embodiment, but also to boots for skiing and boots for cold weather.

  In addition, this embodiment can be freely combined with any one of Embodiment Modes 1 to 3.

  In this embodiment, an example in which the present invention is applied to shoes as an example of sports equipment is shown in FIG. FIG. 10A shows an external view of a shoe, and FIG. 10B is a schematic diagram showing a circuit arrangement in a sole portion of the shoe.

  In this embodiment, a piezoelectric element 1004 is arranged on the sole portion 1001 of the shoe 1000, and mechanical energy such as impact with the ground or floor surface is changed to electric energy by the piezoelectric element, and the electric energy is used. By providing the piezoelectric element 1004 on the sole portion 1001 of the shoe, shock absorption is also effectively performed.

  Furthermore, utilizing the heat generated when the TFT is driven, circuits 1003, 1005, and 1006 including the TFT are arranged on the sole portion 1001 of the shoe to indirectly heat the shoe bottom. Since the circuit including the TFT is thin and is a sheet-like device based on a flexible film, there is almost no sense of incongruity felt with the foot. Note that a circuit 1005 including a TFT is a rectifying unit including an amplifier circuit, a circuit 1006 including a TFT is a temperature control generation circuit including a CPU and a temperature sensor, and a circuit 1003 including the TFT is a circuit that generates heat, meandering. Wiring or heating element. Further, the power generated by the piezoelectric element 1004 may be charged by the charging unit 1007.

  As shown in FIG. 10 (B), circuits 1006 and 1008 including TFTs are provided on the sole portion 1001 of the shoe, preferably on the arch where an arrangement space can be secured, and the piezoelectric element 1004 arranged on the heel portion of the sole portion is provided. The circuit 1003 including partially disposed TFTs is caused to generate heat by using electric power generated by the vibration or impact received.

  For example, in the basket, by heating the circuit 1003 including the TFTs to heat the sole surface made of resin, the sole surface can be softened and the grip force with the floor surface can be increased to make it difficult to slip.

  When various circuits are mounted on shoes, it is preferable to install a central processing unit (CPU) including a TFT. As a place where a central processing unit (CPU), a sensor, a charging unit, a switch and the like are installed, a place 1002 is preferable.

  In FIG. 10B, circuits that are driven separately are provided for a circuit group that uses 1007 as a power source and a circuit group that uses 1002 as a power source. Drive).

  In addition, a circuit including a piezoelectric element and a TFT may be installed in the running shoe. A piezoelectric element is disposed in the sole portion, and the feet are heated by generating heat in the TFT circuit when it is cold using power generated by vibration or impact received by the sole portion. In addition to the TFT circuit, a heating element may be separately provided in the shoe. Further, when the shoe is hot, the foot is cooled by separately providing a Peltier element on the shoe and supplying electric power from the piezoelectric element to drive the Peltier element. In this way, the user can freely adjust the temperature of the shoes by himself / herself. Further, a temperature sensor may be installed, and heating and cooling may be switched by automatically controlling the CPU according to the temperature.

  In addition, this embodiment can be freely combined with any one of Embodiment Modes 1 to 3.

  For example, this example may be combined with the second embodiment, and a simple display unit that allows the user to recognize the current setting of the shoe may be provided at the location 1002 of the shoe. Further, an integrated circuit in which power generation means such as a solar battery is incorporated in the shoe 1000 may be provided. In order to eliminate the need for battery replacement, the shoe 1000 may be provided with a contactless power transmission module that can be charged in a contactless manner.

  Further, this embodiment is combined with Embodiment Mode 3, a receiving circuit is incorporated at a location 1002, a signal is received from an external terminal (not shown) provided with a transmitting circuit, and signal processing is performed by an integrated circuit. The setting of 1000 may be changeable. If the setting of the shoes can be changed by the external terminal, the appearance of the shoes can be simplified without providing a switch in the shoes 1000.

  In this embodiment, an example in which the present invention is applied to a soccer ball as an example of sports equipment is shown in FIG.

  FIG. 15A illustrates a soccer ball 1501 on which a plurality of integrated circuits 1502 each including a piezoelectric element, an amplifier circuit, and a light-emitting element are attached. Further, the integrated circuit 1502 including the piezoelectric element, the amplifier circuit, and the light emitting element is preferably attached to a ball so that it can be freely attached and detached.

  When the soccer ball of the present invention is kicked 1501, the kicked piezoelectric element generates electric power, the power is amplified by the amplifier circuit, and the light emitting element can emit light based on the electric power. Therefore, the entire surface of the ball does not emit light, but only the portion where vibration or impact is applied emits light. Similarly, the light emitting element emits light when hitting the ground or a wall. In general, since soccer is performed in a wide area, it is difficult to practice at night. It was very expensive to rent a place with a night lighting facility.

  If the soccer ball of the present invention is used, since the ball partially emits light at night, it is possible to practice. Further, when the integrated circuit 1502 including the piezoelectric element, the amplifier circuit, and the light emitting element is broken due to an impact applied to the ball, it may be replaced with a new one. An integrated circuit 1502 including a piezoelectric element, an amplifier circuit, and a light-emitting element is provided in a flexible film, and the film has an adhesive surface. Therefore, even a spherical surface such as a ball can be freely attached and detached freely. Further, the integrated circuit 1502 may have a charging unit for charging.

  In addition, the soccer ball of the present invention is also a novel game product. For example, it can be used for a sports game in which soccer installed in a game center or the like is turned into a game. FIG. 15B shows an outline of a game using the ball of the present invention. When the player 1505 kicks the soccer ball 1501 toward the light-transmitting sheet 1503, the kicked soccer ball portion emits light at the moment of kicking, and the ball also emits light when it hits the seat. The soft seat 1503 absorbs the impact of the ball and prevents it from bouncing back toward the player. Moreover, since it has translucency, the light emitted from the ball passes through the seat and is emitted to the opposite side of the player 1505. If an imaging means 1504 such as a CCD camera is provided on the opposite side of the player 1505 across the seat, the location where the ball hits the seat and the location where the player kicked the ball can be determined, and the ball trajectory is determined it can. In addition, if the distance between the place where the ball is kicked and the seat where the ball is hit is fixed, the velocity of the ball is calculated and measured from the time difference between the two times of light emission obtained by the imaging means 1504 such as a CCD camera. You can also.

  Further, the present invention is not limited to a soccer ball, and an integrated circuit including a piezoelectric element, an amplifier circuit, and a light emitting element can be mounted on various balls. For example, it can be mounted on a ball used for tennis or squash. For example, by applying the method shown in FIG. 15B, it is possible to provide an auto tennis field that can determine whether or not the ball has passed the net by using a seat having the same height as the net.

  In this embodiment, an example in which the present invention is applied to clothes such as training wear is shown in FIG. 16 as an example of sports equipment.

  FIG. 16A illustrates a clothes 1601 to which one integrated circuit 1602 including an antenna, a piezoelectric element, an amplifier circuit, and a memory element is attached. Further, the integrated circuit 1602 including an antenna, a piezoelectric element, an amplifier circuit, and a memory element is preferably attached to wear and can be freely attached and detached. The clothes 1601 includes an integrated circuit 1602 including at least a transmission circuit or a reception circuit.

    In addition, the clothes of the present invention also serve as a novel training article. For example, it can be used for measuring the travel time between two points. FIG. 16C shows an outline of training using the clothes 1601 of the present invention. The player 1605 wearing the clothes 1601 of the present invention first wears the clock 1603 and matches the time with the clock built in the two gates. Then, a gate 1604 is arranged at the start point, and a gate 1606 is arranged at the goal point. Then, the player 1605 wearing the clothes 1601 of the present invention transmits and receives signals to and from the integrated circuit mounted on the clothes by being close to the transmission circuit or the reception circuit built in the gate 1604 at the start point. In this embodiment, as shown in FIG. 16B, an integrated circuit 1602 is arranged on the left arm of a player 1605 wearing the clothes 1601 of the present invention.

  Piezoelectric elements that are distorted by receiving vibration due to movement of a body such as an arm or being bent by stretching or contracting clothes amplify the generated current by an amplifier circuit, and power is supplied to the integrated circuit. Further, the integrated circuit 1602 may have a charging unit for charging.

  Then, when the player 1605 leaves the gate 1604 at the start point, the time when transmission / reception of the signal is interrupted is recorded in the gate. The time when the signal is transmitted and received by approaching the gate 1606 arranged at the goal point and crossing the gate 1606 is recorded in the gate 1606. By comparing the times recorded in the gate 1604 and the gate 1606, the traveling time between two points can be performed alone. In athletics, it was difficult to measure the time accurately alone.

  This method can also be performed on snow or water. Conventionally, it has been difficult to accurately measure the time alone in snow competitions. For example, using the training of the present invention, if an integrated circuit having at least a transmission circuit or a reception circuit is mounted on ski wear, gates are respectively installed at the start point and the goal point, and the skiing between them is performed alone, Time can be measured. In addition, using the training of the present invention, if an integrated circuit having at least a transmission circuit or a reception circuit is mounted on snowboard wear, a gate is installed at each of the start point and the goal point, and the snowboard runs between them, alone Time can be measured.

According to the present invention, circuits and elements mounted on sporting goods can be formed of TFTs, and a plurality of circuits and elements can be integrally formed, which is advantageous for mass production.

FIG. 2 is a block diagram illustrating Embodiment 1; The cross-sectional structure figure and equivalent circuit schematic of a piezoelectric element and TFT. (Embodiment 1) FIG. 4 is a block diagram illustrating Embodiment 2. FIG. 4 is a block diagram illustrating Embodiment 3. FIG. 3 is a circuit diagram illustrating Embodiment 1; The figure which shows an example of sports equipment. (Example 1) The figure which shows an example of sports equipment. (Example 2) The figure which shows an example of sports equipment. Example 3 The figure which shows an example of sports equipment. (Example 4) The figure which shows an example of sports equipment. (Example 5) It is the photograph of the surface and cross section after transcription | transfer. It is a SEM photograph of a TFT cross section. It is a photograph of a plurality of CPUs provided on a film substrate. It is the photograph of 1-chip CPU provided in the film substrate. The figure which shows an example of sports equipment. (Example 6) The figure which shows an example of sports equipment. (Example 7) The figure which shows the block structure of CPU.

Explanation of symbols

100: first piezoelectric element 101: amplifier circuit 102: first rectifying means 103: instruction means 104: control signal generating circuit 105: second piezoelectric element 106: amplifier circuit 107: second rectifying means 108: charge control Circuit 109: Charging means 130: Display unit 150: Power generation means

Claims (28)

A piezoelectric element that generates a signal when the piezoelectric element is distorted by a given vibration or impact; and
An amplifier circuit connected to the piezoelectric element and amplifying the signal;
Sports equipment comprising: instruction means for determining whether or not to apply the amplified signal to the piezoelectric element. A piezoelectric element that generates a signal when the piezoelectric element is distorted by a given vibration or impact; and
An amplifier circuit connected to the piezoelectric element and amplifying the signal;
Indicating means for determining whether or not the amplified signal can be applied to the piezoelectric element;
A power supply circuit connected to the amplifier circuit;
A sports equipment comprising: charging means connected to the power supply circuit. A piezoelectric element that generates a signal when the piezoelectric element is distorted by a given vibration or impact; and
An amplifier circuit connected to the piezoelectric element and amplifying the signal;
Indicating means for determining whether or not the amplified signal can be applied to the piezoelectric element;
A power supply circuit connected to the amplifier circuit;
Charging means connected to the power supply circuit;
A sports equipment comprising: power generation means connected to the charging means. The sports equipment according to claim 1, wherein the amplifier circuit includes a TFT. 5. The sports equipment according to claim 1, wherein the sports equipment includes a receiving circuit including an antenna that receives a signal that determines whether or not a voltage can be applied to the piezoelectric element. 6. The sports equipment according to claim 1, wherein the sports equipment includes rectifying means for rectifying the amplified signal before being applied to the piezoelectric element. The sports equipment according to any one of claims 1 to 6, wherein the sports equipment generates power when the piezoelectric element is distorted by a given vibration or impact, and is heated or cooled by the electric power. A first piezoelectric element that generates a signal when the first piezoelectric element is distorted by a given vibration or impact;
A first amplifier circuit connected to the first piezoelectric element and amplifying the signal;
Instruction means for determining whether or not the amplified signal can be applied to the first piezoelectric element;
A power supply circuit connected to the first amplifier circuit;
A second piezoelectric element that generates electric power when the second piezoelectric element is distorted by a given vibration or impact;
A sports equipment comprising: a second amplifier circuit connected to the second piezoelectric element and the power supply circuit and amplifying the power. 9. The sports equipment according to claim 8, wherein the sports equipment includes a charging unit that is connected to the power supply circuit and charges the power. 10. The sports equipment according to claim 8, wherein the first amplifier circuit includes a TFT. 11. The sports equipment according to claim 8, wherein the sports equipment includes a receiving circuit including an antenna that receives a signal that determines whether or not a voltage can be applied to the first piezoelectric element. 12. The sports equipment according to claim 8, wherein the sports equipment includes rectifying means for rectifying the amplified signal before being applied to the first piezoelectric element.   The sports equipment according to any one of claims 8 to 12, wherein the sports equipment generates power when the first piezoelectric element is distorted by a given vibration or impact, and is heated or cooled by the power. Sports equipment. The sports equipment according to any one of claims 1 to 13, wherein the sports equipment includes a display unit that displays whether or not the instruction means is acceptable.   15. The sports equipment according to claim 1, wherein the sports equipment includes a central processing unit.   16. The sports equipment according to claim 1, wherein the sports equipment includes a memory element. A piezoelectric element and a circuit including a TFT;
A sports equipment, wherein the piezoelectric element is distorted by a given vibration or impact to generate electric power, and a circuit including the TFT is driven by the electric power to perform heating or cooling. 18. The sports equipment according to claim 17, wherein the circuit including the TFT is an amplifier circuit, a central processing unit, a temperature control generation circuit, or a reception circuit. The sports equipment according to claim 1, wherein the sports equipment is a striking sports equipment, a winter sports equipment, a training wear, an insole, or shoes. A piezoelectric element, an amplifier circuit, and a light emitting element;
A game product, wherein the piezoelectric element is distorted by a given vibration or impact to generate electric power, and the light emitting element emits light by the electric power.   21. The game article according to claim 20, wherein the amplifier circuit includes a TFT.   24. The game product according to claim 20, wherein the game product has a central processing unit.   23. The game product according to claim 20, wherein the game product is a ball, a glove, or a shoe. A piezoelectric element, an amplifier circuit, and a receiving circuit including an antenna;
A training article, wherein the piezoelectric element is distorted by a given vibration or impact to generate electric power, and the electric power is supplied to the amplifier circuit and the receiving circuit.   The training article according to claim 24, wherein the training article has a central processing unit.   26. The training article according to claim 24 or 25, wherein the training article has a storage element.   27. A training article according to claim 24, wherein the amplifier circuit includes a TFT. 23. The training article according to any one of claims 20 to 22, wherein the training article is a training machine, training wear, ski wear, snowboard wear, or shoes.