TWI505142B - Finger-stall for touch panel - Google Patents

Description

Touch screen input finger sleeve

The invention relates to a touch screen input finger sleeve.

In recent years, with the development of high performance and diversification of various electronic devices such as mobile phones and touch navigation systems, electronic devices in which a translucent touch panel is mounted on the front surface of a display device such as a liquid crystal are gradually increasing. The user of such an electronic device operates by pressing the touch panel while visually confirming the display content of the display device located on the back surface of the touch panel through the touch panel. Thereby, various functions of the electronic device can be operated.

For capacitive touch screens, you need to touch the screen with a touch pen or a finger to operate. When operating with a finger, the oil on the finger can easily leave a mark on the touch screen, soiling the touch screen.

In view of this, it is indeed necessary to provide a touch screen input finger sleeve that does not damage the touch screen when in use.

A touch screen input finger sleeve includes: a finger sleeve; an input end, the input end is disposed on the finger sleeve; wherein the input end includes a support body and a conductive layer disposed on a surface of the support body, The conductive layer is a carbon nanotube composite material layer, the carbon nanotube composite material layer comprises a plurality of carbon nanotube tubes and a conductive material layer coated on the surface of each of the carbon nanotube tubes, when in use, The conductive layer is electrically connected to the finger .

Compared with the prior art, the touch screen provided by the present invention has the following advantages: First, when the finger sleeve is in use, inputting information to the touch screen by using the input end does not cause damage to the touch screen; secondly, the contact area between the input end and the touch screen is small. The small button can be operated sensitively; again, since the touch screen finger sleeve can be operated on one finger during use, the touch screen can be operated by one hand without the need to operate the touch screen with both hands at the same time.

10,20,30,40,50,60‧‧‧Touch screen input finger cot

12,22,32,42,52,62‧‧‧ finger sleeve

14,54,64‧‧‧ input

142,542‧‧‧Part I

144,544‧‧‧Part II

16,56‧‧‧ gap

146‧‧‧Support

148,248,348‧‧‧ Conductive layer

150‧‧‧Nano carbon pipeline structure

152‧‧‧Nano carbon pipeline

122‧‧‧Nano Carbon Tube

124‧‧‧ polymer matrix

154‧‧‧Nano Carbon Tube Array

156‧‧‧ polymer matrix

158‧‧・Nano carbon tube layer

160‧‧‧Nano Carbon Tube Composite Wire Structure

128‧‧‧ Graphene

130‧‧‧ Graphene polymer composite layer

220‧‧‧through hole

240‧‧‧Electrical connection

322‧‧‧Grid

324,424‧‧‧ warp

326,426‧‧‧ weft

3240, 4240‧‧‧ nodes

FIG. 1 is a cross-sectional view of a touch screen input finger sleeve according to a first embodiment of the present invention.

2 is a schematic structural view of graphene used in a conductive layer of a touch screen input finger sleeve according to a first embodiment of the present invention.

3 is a schematic structural view showing a touch panel input finger sleeve in a first embodiment of the present invention, which is disposed on a surface of a support body as a conductive layer by using a carbon nanotube array.

4 is a schematic view showing the structure of a touch panel input finger sleeve in which a carbon nanotube layer is disposed on a surface of a support as a conductive layer in the first embodiment of the present invention.

FIG. 5 is a scanning electron micrograph of a carbon nanotube film taken by a conductive layer of a touch screen input finger cover according to a first embodiment of the present invention.

6 is a scanning electron micrograph of a carbon nanotube flocculation film used for the conductive layer of the touch screen input finger cover in the first embodiment of the present invention.

7 is a scanning electron micrograph of a carbon nanotube rolled film used for a conductive layer of a touch screen input finger sleeve in the first embodiment of the present invention.

8 is a first embodiment of the present invention, the touch screen input finger sleeve adopts a nano carbon pipeline The structure of the structure is set on the surface of the support as a conductive layer.

FIG. 9 is a schematic view showing the structure of the input screen of the touch screen in the first embodiment of the present invention, which is disposed on the surface of the support body as a conductive layer by using a nanocarbon nano-line structure.

FIG. 10 is a schematic view showing the structure of a nanocarbon line-like structure including a nano carbon line in which the nano roots are parallel to each other used in the conductive layer of the input screen of the touch screen in the first embodiment of the present invention.

11 is a schematic view showing the structure of a nanocarbon line-like structure including a nanocarbon intertwined nanocarbon line used for a conductive layer of a touch screen input finger sleeve in the first embodiment of the present invention.

Figure 12 is a scanning electron micrograph of a non-twisted nanocarbon line used in the conductive layer of the touch screen input finger cot in the first embodiment of the present invention.

Figure 13 is a scanning electron micrograph of a twisted nanocarbon line used in the conductive layer of the touch screen input finger sleeve in the first embodiment of the present invention.

14 is a schematic structural view of a carbon nanotube polymer composite material used for a conductive layer of a touch screen input finger sleeve according to a first embodiment of the present invention.

15 is a schematic structural view of a polymer composite material formed by a polymer material-coated carbon nanotube array used for a conductive layer of a touch screen input finger sleeve according to a first embodiment of the present invention.

16 is a schematic view showing the structure of a polymer composite material formed by filling a polymer material in a conductive layer of a touch panel input finger sleeve in a slit of a carbon nanotube array in the first embodiment of the present invention.

17 is a view showing a conductive layer used in a conductive layer of a touch screen input finger cover according to a first embodiment of the present invention; Schematic diagram of the structure of a polymer composite formed of a carbon nanotube layer and a polymer material.

18 is a schematic structural view of a polymer composite material formed by a nanocarbon line-like structure and a polymer material used for a conductive layer of a touch screen input finger sleeve according to a first embodiment of the present invention.

19 is a schematic structural view of a graphene polymer composite material used for a conductive layer of a touch screen input finger sleeve according to a first embodiment of the present invention.

FIG. 20 is a schematic structural diagram of a touch screen input finger sleeve according to a second embodiment of the present invention.

FIG. 21 is a schematic structural diagram of a touch screen input finger sleeve according to a first aspect of the third embodiment of the present invention.

FIG. 22 is a schematic structural diagram of a touch screen input finger sleeve according to a second aspect of the third embodiment of the present invention.

FIG. 23 is a schematic structural diagram of a touch screen input finger sleeve according to a third aspect of the third embodiment of the present invention.

FIG. 24 is a schematic structural diagram of a touch screen input finger sleeve according to a fourth aspect of the third embodiment of the present invention.

FIG. 25 is a schematic structural diagram of a touch screen input finger sleeve according to a fourth embodiment of the present invention.

FIG. 26 is a schematic structural diagram of a touch screen input finger sleeve according to a fifth embodiment of the present invention.

Figure 27 is a schematic view showing the structure of an input end composed of a nanocarbon line-like structure according to a fifth embodiment of the present invention.

28 is a schematic structural view of an input end composed of a nanogen nano carbon line structure according to a fifth embodiment of the present invention.

FIG. 29 is a schematic structural diagram of a touch screen input finger sleeve according to a sixth embodiment of the present invention.

The touch screen input finger sleeve of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

Referring to FIG. 1 , a first embodiment of the present invention provides a touch screen input finger sleeve 10 including a finger sleeve 12 and an input end 14 . The input end 14 and the finger sleeve 12 are detachably connected to each other. The one end is closed at one end and the other end is open. The input end 14 is located at the closed end, and in use enables a human finger to be electrically connected to the input end 14.

The material of the finger sleeve 12 is a flexible material, and may be a flexible conductive material or a flexible insulating material. The flexible insulating material includes resin, rubber, plastic, and flexible fibers. The flexible conductive material may be a conductive polymer material or a conductive material formed by adding metal particles to the flexible insulating material. The finger sleeve 12 has a cylindrical structure and may be open at both ends, or may be closed at one end and open at the other end. If the material of the finger sleeve 12 is an insulating material, the input end 14 needs to be mounted on the finger sleeve 12 in a manner that is in contact with the fingers. When the two ends of the finger sleeve 12 are open, the input end 14 can be directly fixed to one end of the finger sleeve 12, and the finger can directly contact the input end 14; when one end of the finger sleeve 12 is closed, At least one through hole needs to be opened at the closed end, and the input end 14 is disposed on the inner wall surface or the outer wall surface of the closed end, and the finger can directly contact the input end 14 or contact the input end 14 through the hole. In this embodiment, the finger sleeve 12 is open at both ends, and the finger sleeve 12 is used for fixing the input end 14 to the finger of the touch screen and electrically connecting the finger to the input end 14 . The size is determined by the thickness of the finger, generally slightly smaller than the diameter of the finger, and the finger sleeve 12 itself has a The elasticity can be fixed on the finger. The wall thickness of the finger sleeve 12 can be selected to be 0.1 mm to 2 mm.

The input terminal 14 is for conducting current between the touch screen screen and the finger, thereby causing the touch screen input finger sleeve 10 to input a signal to the touch screen. The shape of the input end 14 is not limited and may be spherical, conical, ellipsoidal or other irregular shape. The input end 14 can be fixed to one end of the finger sleeve 12 by mechanical means such as snapping or interference fit, or physical and chemical means such as hot pressing and bonding. In this embodiment, the input end 14 is fixed to the finger sleeve 12 by a bonding agent. The input end 14 can be divided into a first portion 142 and a second portion 144 according to the positional relationship with the finger sleeve 12. The first portion is located inside the finger sleeve 12 for contacting the fingers. The second portion 144 is located outside of the finger sleeve 12 for inputting signals to the touch screen. The surface of the first portion 142 in contact with the finger may have a curved surface so that the finger pad of the user's finger has a better tactile sensation when in contact with the curved surface. The second portion 144 can have a pointed or raised configuration for facilitating the operation of smaller keys. Alternatively, the side of the input end 14 that contacts the finger sleeve 12 may also include a slit 16 for receiving the fingernail, making it more comfortable for the person to use the touch screen to input the finger cuff.

In this embodiment, the input end 14 includes a support body 146 and a conductive layer 148 disposed on the surface of the support body 146. The support body 146 may be a hollow structure or a solid structure. The material of the support body 146 is not limited and may be made of a hard material or a flexible material. When the material of the support body 146 is selected from a hard material, it may be one or more of ceramic, glass, resin, quartz, plastic, and the like. When the support 146 selects a flexible material, it may be one or more of resin, rubber, plastic or flexible fiber. The support body 146 may also be a conductive polymer material, and the conductive polymer material has a high dielectric constant. When used as the support body 146, the input end 14 can be It has a large capacitance. The conductive polymer material may be polyaniline, polypyrrole or polythiophene. The support 146 may also be a liquid having a higher dielectric constant such as water or an ionic solution. When the support body 146 is made of liquid, the input end 14 can be made flexible, and the touch screen input finger sleeve 10 does not scratch the screen when it is in contact with the touch screen. When the support body 146 is a hollow structure, the input end 14 can be made lighter in weight and material can be saved. When the material of the support body 146 is a flexible material, the input end 14 can have a certain flexibility, and has a certain protection effect on the touch screen, and the input end 14 has a certain bending resistance, and the life of the input end 14 can be improved. At the same time, since the input end 14 has a certain flexibility, the contact area between the input end 14 and the touch screen can be controlled by the touch pressure, thereby controlling the input signal.

The conductive layer 148 is composed of a conductive material for conducting current between the touch screen screen and the finger, thereby causing the touch screen input finger sleeve 10 to input a signal to the touch screen. That is, in use, the conductive layer 148 of the touch screen input finger cuff 10 is electrically connected to the user's finger.

The conductive layer 148 can be a graphene layer. Referring to FIG. 2, graphene is a lamellar structure composed of a plurality of six-membered ring carbon atoms. The graphene coating on the surface of the support 146 constitutes a graphene layer, and the graphene in the graphene layer is connected to each other by van der Waals force. The graphene in the graphene layer may be arranged in an overlapping manner, arranged side by side, or overlapped with each other. Graphene has good electrical conductivity and it delivers electrons very quickly at room temperature. The thickness of the graphene is less than or equal to 100 nm. In the present embodiment, the thickness of the graphene is from 0.5 nm to 100 nm. The thickness of the graphene layer is a thickness of a single layer of graphene to 1 mm. In this embodiment, a graphene material is prepared by a chemical dispersion method. Chemical dispersion method of graphite oxide and water Mix in a ratio of 1 mg: 1 mL, shake with ultrasonic waves until the solution is clear and free of particulate matter, and add an appropriate amount of hydrazine at 100 ° C for 24 h to produce a black granular precipitate, which is filtered and dried to obtain a graphene powder. After the graphene is obtained, the support 146 is placed in the graphene powder. Since the graphene is a nano material, it has a certain adhesion force and can adhere to the surface of the support 146 to form the conductive layer 148. It can be understood that the graphene can also be fixed to the surface of the support 146 by a binder. The graphene-based nano-material has a high specific surface area. When used as the conductive layer 148, the conductive layer 148 is in direct contact with the touch screen. Since the specific surface area of the graphene is large, a large capacitance can be generated between the touch screen and the touch screen. The touch screen input finger sleeve 10 can have higher sensitivity. Moreover, the graphene is smoother and has a smaller coefficient of friction, and does not cause damage to the screen of the touch screen during use.

The conductive layer 148 may also be a carbon nanotube structure including a plurality of uniformly distributed carbon nanotube tubes. The carbon nanotubes may be one or more of a single-walled carbon nanotube, a double-walled carbon nanotube, and a multi-walled carbon nanotube. The carbon nanotube structure may be a pure carbon nanotube structure composed of a carbon nanotube. The carbon nanotubes in the carbon nanotube structure can be tightly bonded by van der Waals force. The carbon nanotubes in the carbon nanotube structure are disordered or ordered. The disordered arrangement here means that the arrangement direction of the carbon nanotubes is irregular, and the ordered arrangement here means that the arrangement direction of at least the nanometer carbon nanotubes has a certain regularity. Specifically, when the carbon nanotube structure includes a disordered arrangement of carbon nanotubes, the carbon nanotubes may be entangled or isotropically arranged; when the carbon nanotube structure comprises an ordered arrangement of carbon nanotubes, The carbon nanotubes are arranged in a preferred orientation in one direction or in a plurality of directions. There is a gap between the carbon nanotubes in the carbon nanotube structure, so the carbon nanotube structure includes a plurality of micropores. The pores have a pore diameter of 10 μm or less. The carbon nanotube structure has a thickness of 100 nm to 1 mm. Since each carbon nanotube in the carbon nanotube structure has a large specific surface area, the carbon nanotube structure The utility model has a large specific surface area, and when it contacts the touch screen, a large contact capacitance can be generated, and the touch screen input finger sleeve 10 can have high sensitivity. Moreover, the carbon nanotubes are relatively smooth and have a small coefficient of friction, which does not cause damage to the screen of the touch screen during use.

Referring to FIG. 3, the carbon nanotube structure may be an array of carbon nanotubes disposed on a surface of the support 146. The root of the carbon nanotube in the carbon nanotube array is fixed to the surface of the support 146, and the end of the carbon nanotube extends in a direction away from the surface of the support 146. The surface angle of the carbon nanotubes in the carbon nanotube array and the support 146 is not limited. Preferably, the carbon nanotubes extend along the normal direction of the surface of the support 146. The distance between the roots of the carbon nanotubes in the carbon nanotube array is greater than or equal to 0 and less than or equal to 1 micrometer. The distance between the ends of the carbon nanotubes in the array of carbon nanotubes is greater than or equal to 0 and less than or equal to 1 micrometer. There is a gap between adjacent carbon nanotubes in the array of carbon nanotubes.

Referring to FIG. 4, the carbon nanotube structure may be a carbon nanotube layer, and the carbon nanotube layer includes at least one layer of carbon nanotube film coated on the support body 146. surface. When the carbon nanotube structure includes a nano-layer carbon nanotube film, the nano-layer carbon nanotube film may be stacked or arranged in parallel. Referring to FIG. 5, the carbon nanotube film may be a carbon nanotube film. The carbon nanotube film is a carbon nanotube film obtained by directly pulling from a carbon nanotube array. Each nanocarbon film is a self-supporting structure composed of several carbon nanotubes. The plurality of carbon nanotubes are arranged in a preferred orientation along substantially the same direction. The preferred orientation means that the majority of the carbon nanotubes in the carbon nanotube film extend substantially in the same direction. Moreover, the overall direction of extension of the majority of the carbon nanotubes is substantially parallel to the surface of the carbon nanotube film. Further, most of the carbon nanotubes in the carbon nanotube membrane are connected end to end by van der Waals force. specifically Each of the carbon nanotubes in the majority of the carbon nanotube membranes extending substantially in the same direction and the carbon nanotubes adjacent in the extending direction are connected end to end by van der Waals force. Of course, there are a few randomly arranged carbon nanotubes in the carbon nanotube film, and these carbon nanotubes do not significantly affect the overall orientation of most of the carbon nanotubes in the carbon nanotube film. The self-supporting carbon nanotube film does not require a large-area carrier support, but can maintain a self-membrane state as long as the supporting force is provided on both sides, that is, the carbon nanotube film is placed (or fixed on) When the two supports are disposed at a fixed distance, the carbon nanotube film located between the two supports can be suspended to maintain the self-membrane state. The self-supporting is mainly achieved by the presence of continuous carbon nanotubes extending through the end-to-end extension of the van der Waals force in the carbon nanotube film. The thickness of the carbon nanotube film is 0.5 nm to 100 μm, and the width is related to the size of the carbon nanotube array for pulling the carbon nanotube film, and the length is not limited. The specific structure of the carbon nanotube film and its preparation method can be found in Fan Shoushan et al., which was filed on February 12, 1996. The Republic of China announced the patent No. I327177 announced on July 11, 1999. To save space, reference is made only to this, but all technical disclosures of the application should also be considered as part of the disclosure of the technology of the present application.

When the carbon nanotube structure is formed by a carbon nanotube film, it may include a plurality of layers of carbon nanotube film laminated, and the carbon nanotubes in the adjacent two layers of carbon nanotube film are The angle of intersection formed by the axial direction of the carbon nanotubes in each layer is not limited, and there is a gap between adjacent carbon nanotubes between the carbon nanotube film or a carbon nanotube film. A plurality of micropores are formed in the carbon nanotube structure to provide a larger specific surface area of the carbon nanotube structure, and the pore size of the micropores is less than about 10 microns.

Referring to FIG. 6, the carbon nanotube film may also be a carbon nanotube film. The carbon nanotube flocculation membrane is a carbon nanotube membrane formed by a flocculation method. The nanocarbon The tube flocculation membrane comprises carbon nanotubes which are intertwined and uniformly distributed. The carbon nanotubes are attracted and entangled with each other by van der Waals force to form a network structure. The carbon nanotube flocculation membrane is isotropic. The length and width of the carbon nanotube film are not limited. Since the carbon nanotubes are intertwined in the carbon nanotube flocculation membrane, the carbon nanotube flocculation membrane has good flexibility and is a self-supporting structure, which can be bent and folded into any shape without breaking. . The area and thickness of the carbon nanotube film are not limited, and the thickness is 1 micrometer to 1 millimeter. For the carbon nanotube flocculation membrane and the preparation method thereof, please refer to the patent application "Nano Carbon" of the No. 200844041 published by Fan Shoushan et al. on May 11, 1996 in the Republic of China on November 16, 1997. Method for preparing tube film". In order to save space, only the above is cited, but all the technical disclosures of the above application are also considered as part of the technical disclosure of the present application.

Referring to FIG. 7, the carbon nanotube film may also be a carbon nanotube rolled film formed by rolling an array of carbon nanotubes. The carbon nanotube rolled film comprises uniformly distributed carbon nanotubes, and the carbon nanotubes are arranged in the same direction or in different directions. The carbon nanotubes can also be isotropic. The carbon nanotubes in the carbon nanotube rolled film partially overlap each other and are attracted to each other by van der Waals force and tightly combined. The carbon nanotubes in the carbon nanotube rolled film form an angle β with the surface of the growth substrate forming the carbon nanotube array, wherein β is greater than or equal to 0 degrees and less than or equal to 15 degrees. The carbon nanotubes in the carbon nanotube rolled film have different arrangements depending on the manner of rolling. When rolled in the same direction, the carbon nanotubes are arranged in a preferred orientation along a fixed direction. It can be understood that when crushed in different directions, the carbon nanotubes can be arranged in a preferred orientation in a plurality of directions. The thickness of the carbon nanotube rolled film is not limited, and is preferably from 1 μm to 1 mm. The area of the carbon nanotube rolled film is not limited, and is determined by the size of the carbon nanotube array that is rolled out of the film. When the size of the carbon nanotube array is large, a large area of the carbon nanotube rolled film can be crushed. The carbon nanotube film and the preparation method thereof can be found in Shoushan et al., filed on June 29, 1996, issued on December 21, 1999, No. I334851, Taiwan Announcement Patent "Preparation Method of Nano Carbon Films". In order to save space, only the above is cited, but all the technical disclosures of the above application are also considered as part of the technical disclosure of the present application.

The carbon nanotube structure may further include at least one nanocarbon line structure, and the at least one nano carbon line structure is disposed on a surface of the support body 146. The manner in which the nanocarbon line-like structure is disposed on the surface of the support 146 is not limited. Referring to FIG. 8, when the carbon nanotube structure is a nanocarbon line-like structure 150, the nanocarbon line-like structure 150 is spirally wound around the surface of the support 146. Referring to FIG. 9, when the carbon nanotube structure includes the nanogen nano carbon line structure 150, the nanogen nano carbon line structure 150 may cross or weave to form a network structure, the network structure. Covered on the surface of the support 146. The nanocarbon line-like structure 150 includes at least one nanocarbon line including a plurality of uniformly distributed carbon nanotubes. The nanocarbon line may be a pure structure composed of a carbon nanotube. There is a gap between adjacent carbon nanotubes in the nanocarbon pipeline, so the nanocarbon pipeline has a large number of pores, and the pore size is less than about 10 micrometers. Referring to FIG. 10, when the nanocarbon line-like structure 150 includes the nanogen nm carbon line 152, the nanogen nm carbon line 152 may be disposed in parallel with each other. Referring to FIG. 11, when the nanocarbon line-like structure 150 includes the nanogen nanocarbon line 152, the nanogen nm carbon line 152 may be spirally wound with each other. The nanocarbon lines 152 in the nanocarbon line-like structure 150 may be fixed to each other by a binder.

The nanocarbon line 152 can be a non-twisted nanocarbon line or a twisted nanocarbon line. The non-twisted nanocarbon line 152 is obtained by treating a carbon nanotube film with an organic solvent. Referring to FIG. 12, the non-twisted nanocarbon line 152 includes a plurality of carbon nanotubes arranged along the length of the nanocarbon line and connected end to end. Preferably, The non-twisted nano carbon pipeline includes a plurality of carbon nanotube segments, and the plurality of carbon nanotube segments are connected end to end by van der Waals, and each carbon nanotube segment includes a plurality of parallel and pass through The silicon carbide tightly combined with the carbon nanotubes. The carbon nanotube segments have any length, thickness, uniformity, and shape. The non-twisted nano carbon line is not limited in length and has a diameter of 0.5 nm to 100 μm.

The twisted nanocarbon line 152 is obtained by twisting both ends of the carbon nanotube film in the opposite direction by a mechanical force. Referring to FIG. 13, the twisted nanocarbon line 152 includes a plurality of carbon nanotubes arranged in an axial spiral arrangement around the carbon nanotube line. Preferably, the twisted nanocarbon line 152 comprises a plurality of carbon nanotube segments, the plurality of carbon nanotube segments being connected end to end by van der Waals, each carbon nanotube segment comprising a plurality of parallel lines And through the close combination of the van der Waals carbon nanotubes. The carbon nanotube segments have any length, thickness, uniformity, and shape. The twisted nanocarbon line 152 is not limited in length and has a diameter of 0.5 nm to 100 μm. The nano carbon pipeline and its preparation method can be found in Fan Shoushan et al., which was filed on November 5, 1991 in the Republic of China. No. I303239, announced on November 21, 1997, Taiwan’s patent "a carbon nanotube rope and Its manufacturing method", the patentee: Hon Hai Precision Industry Co., Ltd., and Taiwan No. I312337 announced on July 21, 1998, the Taiwan Announced Patent "Nano Carbon Pipe and Its Manufacturing Method", Patentee: Hon Hai Precision Industry Co., Ltd. In order to save space, only the above is cited, but all the technical disclosures of the above application are also considered as part of the disclosure of the present application.

The conductive layer 148 may also be a carbon nanotube composite material layer, and the carbon nanotube composite material layer is a composite material formed by the above carbon nanotube structure and a conductive material. The carbon nanotube structure in the carbon nanotube composite layer maintains its structure. Each of the carbon nanotubes in the carbon nanotube structure is coated with a layer of a conductive material. Nano There is a gap between the carbon nanotubes coated with the conductive material layer in the carbon tube composite layer, and therefore, the carbon nanotube composite layer includes a plurality of micropores. The pores have a pore diameter of 5 μm or less. The conductive material layer functions to make the carbon nanotube structure have better electrical conductivity. The material of the conductive material layer is a metal or an alloy, and the metal may be copper, silver or gold. The conductive layer has a thickness of 1 to 20 nm. In this embodiment, the conductive layer is made of silver and has a thickness of about 5 nm.

Since the wettability between the carbon nanotubes and most of the metals is not good, alternatively, a wetting layer may be further included between the carbon nanotubes and the conductive material layer. The wetting layer functions to better bond the conductive layer to the carbon nanotubes. The material of the wetting layer may be a metal such as nickel, palladium or titanium which is wettable with a carbon nanotube or an alloy thereof, and the wetting layer has a thickness of 1 to 10 nm.

Alternatively, a transition layer may be further included between the wetting layer and the conductive material layer for better bonding of the wetting layer and the conductive layer. The material of the transition layer may be a material which can be well combined with the material of the wetting layer and the material of the conductive layer, and the thickness of the transition layer is 1 to 10 nm.

In the carbon nanotube composite layer, after the carbon nanotube structure is combined with the conductive material, the carbon nanotube composite layer has better electrical conductivity, and is used as the conductive layer 148 of the input terminal 14 in contact with the touch screen. When the charge is transferred at a faster rate, the reaction speed of the touch screen input finger cover 10 can be increased. Since the carbon nanotube composite layer includes a plurality of micropores, the carbon nanotube composite layer has a large specific surface area, and a large contact capacitance can be generated when contacting the touch screen, so that the sensitivity of the touch screen can be improved.

Referring to FIG. 14 , the conductive layer 148 may also be composed of a carbon nanotube polymer composite layer composed of a polymer matrix 124 and The plurality of carbon nanotubes 122 dispersed in the polymer matrix 124 are composed of a plurality of carbon nanotubes 122. The plurality of carbon nanotubes 122 are uniformly dispersed in the polymer matrix 124 and interconnected to form a conductive network. Since the carbon nanotube 122 has a very large specific surface area and high conductivity, the conductive layer 148 composed of a polymer composite composed of the carbon nanotube 122 and the polymer matrix 124 has a larger specific surface area. When the conductive layer 148 is in use, since the conductive layer 148 has a large specific surface area, more static charges conducted from the user's hand can be stored, thereby improving the contact capacitance between the conductive layer 148 and the touch screen. . In use, the conductive layer 148 composed of the polymer composite material doped with the carbon nanotubes 122 and the touch panel constitute a larger capacitance per unit area, thereby being more sensitive. In addition, since the carbon nanotube 122 is a hollow structure, it has a very small mass, and its special chemical bond structure allows the carbon nanotube 122 to have a very high strength and modulus. In addition, the carbon nanotubes 122 have very good flexibility, and the shape can be restored well after applying an external force. Therefore, the conductive layer 148 composed of the polymer composite material formed by the carbon nanotube 122 and the polymer matrix 124 has a lighter weight and a higher scratch resistance, thereby having a longer service life. The conductive layer 148 composed of the polymer composite material composed of the dispersed carbon nanotube 122 is disposed on the polymer matrix 124, and a part of the carbon nanotube 122 is exposed from the outer surface of the tip to better contact the touch panel.

The material of the polymer matrix 124 may include one or a nano-species of a thermoplastic polymer or a thermosetting polymer. Preferably, the polymer matrix 124 is made of a flexible material, and the material of the flexible polymer matrix 124 is ruthenium rubber, polyurethane, polyethyl acrylate, polybutyl acrylate, polystyrene, polybutadiene. And a combination of one or more of polyacrylonitrile and the like. In this embodiment, the flexible polymer matrix 124 is a ruthenium rubber.

The carbon nanotubes in the carbon nanotube polymer material layer may exist in the form of a carbon nanotube structure. The structure of the carbon nanotube structure is the same as that of the above-described carbon nanotube structure. Depending on the composite mode of the carbon nanotube structure and the matrix material, the specific structure of the nanocarbon tube polymer composite structure includes the following three cases:

In the first case, the carbon nanotube structure is a carbon nanotube array, and the carbon nanotube array comprises a plurality of carbon nanotubes arranged side by side, and the polymer matrix material is filled in the carbon nanotube array. In the gap between adjacent carbon nanotubes. Referring to FIG. 15, the polymer matrix 124 can coat the entire carbon nanotube array 154, and the surface of the polymer matrix 124 to the surface of the carbon nanotube array 154 is less than or equal to 10 micrometers. The surface of the material layer is still electrically conductive. Referring to FIG. 16, the carbon nanotubes 122 in the carbon nanotube array 154 may emerge from the polymer matrix 124, and the carbon nanotubes 122 may be exposed to the polymer matrix 124 to a length of 10 micrometers or less.

In the second case, referring to FIG. 17, the carbon nanotube polymer composite material comprises a carbon nanotube layer 158 and a polymer matrix 124 penetrating into the carbon nanotube layer 158. The carbon nanotube layer 158 has a large number of pores, and the polymer matrix 124 penetrates into the pores of the carbon nanotube layer 158. The carbon nanotube layer 158 may be entirely coated in the polymer matrix 124. At this time, the distance from the surface of the polymer matrix 124 to the surface of the carbon nanotube layer 158 is 10 μm or less, and the carbon nanotubes are high at this time. The surface of the molecular composite layer is still electrically conductive. A portion of the carbon nanotubes in the carbon nanotube layer 158 may also be exposed from the polymer material. When the carbon nanotube layer 158 includes a plurality of carbon nanotube films, the plurality of carbon nanotube films may be stacked.

In the third case, referring to FIG. 18, when the carbon nanotube structure includes a single nanocarbon line-like structure, the polymer matrix 124 can penetrate between the nanocarbon pipelines 152 in the nanocarbon line-like structure. Forming a carbon nanotube composite linear structure 160. The nano In the carbon tube composite linear structure 160, the polymer matrix 124 may also coat the entire nanocarbon line-like structure, and the thickness of the surface of the polymer matrix 124 to the surface of the nanocarbon line-like structure is 10 μm or less. The surface of the carbon nanotube polymer composite layer is still electrically conductive. The carbon nanotube composite linear structure 160 is folded or coiled and disposed on the surface of the support 146 to form a conductive layer 148. When the carbon nanotube structure includes a plurality of carbon nanotube composite linear structures 160, the plurality of carbon nanotube composite linear structures 160 may be formed in parallel, tightly disposed or woven to form on the surface of the support 146.

Referring to FIG. 19, the conductive layer 148 may also be a graphene polymer composite layer 130. The graphene polymer composite material layer 130 is composed of a graphene polymer composite material in which a graphene 128 is dispersed in a material of a flexible polymer matrix 124. The volume percentage of the graphene in the flexible polymer matrix is 10% to 60%. The graphene 128 has a thickness of from 0.5 nm to 100 nm. Graphene 128 has good electrical conductivity and it transfers electrons very quickly at room temperature. Graphene 128 also has a large specific surface area. Therefore, the graphene polymer composite material layer 130 composed of the graphene 128 and the flexible polymer matrix 124 also has a large specific surface area and conductivity, so the conductive layer 148 composed of the above graphene polymer composite material layer 130 is also used. The capacitance per unit area formed by the touch screen is large and has good conductivity, and the conductive layer 148 has higher sensitivity.

Referring to FIG. 20 to FIG. 23, a second embodiment of the present invention provides a touch screen input finger sleeve including a finger sleeve 22 and an input end 24. The finger sleeve 22 and the input end 24 are integrally formed of an insulating material, and thus have a cylindrical structure in which one end is closed and the other end is open, and the closed end serves as an input end 24. Meanwhile, a surface of the finger sleeve 22 and the input end 24 is provided with a conductive layer 248, and the conductive layer 248 will cover the inner surface of the finger sleeve 22. At least a portion is electrically connected to the outer surface of the input end 24. The arrangement relationship between the conductive layer 248 and the finger sleeve 22 may include the following cases: First, the finger sleeve 22 shown in FIG. 20, the conductive layer 248 may be disposed to cover the finger sleeve 22 The entire inner and outer surfaces, and at the open end of the finger sleeve 22, electrically connect the conductive layer 248 of the inner surface to the conductive layer 248 of the outer surface; and second, the finger sleeve 22 as shown in FIG. 21, the conductive Layer 248 covers the entire outer surface and a portion of the inner surface, and electrically connects the conductive layer 248 of the inner surface to the conductive layer 248 of the outer surface at the open end of the finger sleeve 22. Thirdly, as shown in FIG. 22, the finger sleeve 22 includes at least one through hole 220, and the conductive layer 248 is disposed on the outer surface of the finger sleeve 22, and covers the end of the finger sleeve 22 and the at least one through hole. 220, after the user's finger is placed in the finger sleeve 22, electrical connection with the conductive layer 248 can be achieved through the plurality of through holes 220; Fourth, as shown in FIG. 23, the conductive layer 248 is respectively located on the finger sleeve The inner surface and the outer surface of the closed end of the 2222, the finger sleeve 22 includes at least one through hole, and a conductive connecting portion 240 is disposed in the at least one through hole to electrically conductive layer 248 on the inner surface and conductive on the outer surface Layer 248 is electrically connected.

Of course, the relationship between the conductive layer 248 and the finger sleeve 22 is not limited to the above manners, and only needs to be electrically connected to the conductive layer 248 of the input terminal 24 after the user's finger is placed in the finger sleeve 22. can.

The material of the finger sleeve 22 and the input end 24 is the same as that of the finger sleeve 12 provided by the first embodiment.

The material of the conductive layer 248 is the same as that of the conductive layer 148 provided by the first embodiment. The conductive layer 248 may be disposed on the surface of the finger sleeve 22 by a bonding agent, mechanical snapping, heat fusion, screwing, or the like.

Referring to FIG. 24, a third embodiment of the present invention provides a touch screen input finger sleeve 30, the touch The touch screen input finger cuff 30 includes a finger sleeve 32 and an input end 34. The main difference between this embodiment and the second embodiment is that the finger sleeve 32 and the input end 34 are all made of a conductive material, and the conductive material is a self-supporting structure, which can maintain a shape of a finger sleeve, thereby forming The touch screen is input to the finger cuff 30. The portion of the touch screen input finger sleeve 30 for arranging the finger is a finger sleeve 32, and the end of the touch screen input finger sleeve 30 is for contacting the touch screen as the input end 34.

The material of the touch screen input finger sleeve 30 may be the graphene composite material layer described in the first embodiment, the above-mentioned carbon nanotube layer or the above-mentioned carbon nanotube polymer composite material layer.

The carbon nanotube polymer composite layer may include a polymer matrix and a carbon nanotube layer. The carbon nanotube layer may be composed of at least one layer of carbon nanotube film. When the carbon nanotube layer comprises a layer of carbon nanotube film, the carbon nanotube film can be deformed in a direction perpendicular to the extension of the carbon nanotube, and then recovered, and the process does not destroy the carbon nanotube. The structure of the film is pulled. When the carbon nanotube layer comprises at least two layers of mutually perpendicular carbon nanotube film, the carbon nanotube layer can be deformed in various directions and restored, and the process does not destroy the structure of the carbon nanotube film. Due to the above properties of the carbon nanotube film, when the polymer substrate is made of an elastic material, the touch screen input finger sleeve 30 can have greater elasticity, is more convenient in application, and has no requirement on the thickness of the user's finger, and It is easier to fix on the user's finger.

Referring to FIG. 25, a fourth embodiment of the present invention provides a touch screen input finger sleeve 40. The touch screen input finger sleeve 40 is composed of a finger sleeve 42 which is woven by a plurality of warp threads 424 and a plurality of weft threads 426. form. The warp 424 is a conductive filament, and one end of the plurality of warp threads 424 is connected to a node 4240, and a plurality of warp threads 424 extend from the node 4240. The node 4240 constitutes a tip as a touch screen input finger The input 44 of the sleeve 40. The weft 426 is a closed line for securing the plurality of warp threads 424. The diameters of the warp threads 424 and the weft threads 426 are less than 1 mm. Preferably, the diameters of the warp threads 424 and the weft threads 426 are greater than or equal to 10 micrometers and less than or equal to 1 millimeter. The distance between two adjacent wefts 426 is less than or equal to 1 mm. The warp 424 is a conductive material and is a nano carbon line structure or a carbon nanotube composite line structure. The material of the weft 426 may be a conductive material or an insulating material. The conductive material may be a metal. The insulating material may be plastic, nylon, rubber, resin or fiber. Preferably, the material of the weft 426 is a flexible material to impart a certain flexibility to the touch screen input finger sleeve 40.

Referring to FIG. 26, a fifth embodiment of the present invention provides a touch screen input finger cuff 50, which includes a finger sleeve 52 and an input end 54. The main difference between this embodiment and the first embodiment is that the input terminals 54 are all made of a conductive material.

The input end 54 may be composed of a carbon nanotube layer, a nanocarbon line structure, a carbon nanotube polymer composite layer or a graphene polymer composite layer as described in the first embodiment. The carbon nanotube structure, the carbon nanotube polymer composite layer or the graphene polymer composite layer may be formed into a shape of the input end 54 by various deformations such as curling, agglomeration, coiling, and the like.

When the input 54 includes a layer of carbon nanotubes, the layer of carbon nanotubes can be agglomerated to form an input 54. The input end 54 can be a hollow structure or a solid structure. At this time, the input end 54 is composed of a plurality of intertwined carbon nanotubes. Since the carbon nanotube layer includes a plurality of carbon nanotube membranes, the surface of the carbon nanotube membrane has a certain viscosity, so that when the carbon nanotube layer is agglomerated to form the input end 54, the shape of the input end 54 can be maintained. When the carbon nanotube layer comprises a carbon nanotube film or a carbon nanotube film, the carbon nanotubes are connected end to end, so that the input end 54 has good conductivity.

Referring to FIG. 27, when the input terminal 54 includes a nanocarbon line-like structure 150, the nanocarbon line-like structure 150 can be coiled to form the input end 54 for maintaining the nanocarbon line-like structure 150 at the input end 54. The shape may be coated with a bonding agent at a gap formed after the nano carbon line-like structure 150 is wound. The bonding agent may be a conductive adhesive or a non-conductive adhesive. Preferably, the adhesive is a conductive adhesive. In the embodiment, a conductive silver paste is used. Referring to FIG. 28, when the input end 54 includes the nanogen nanocarbon line-like structure 150, each of the nanocarbon line-like structures 150 may form a ring around the circumference, and the adjacent two rings are tightly coupled, and The radius of the ring formed by each of the nanocarbon line-like structures 150 is gradually reduced in order to form an input end 54 having a conical shape. The rings composed of adjacent nanocarbon line-like structures are fixed by a binder.

When the input 54 comprises a carbon nanotube layer or a nanocarbon line-like structure, in order to maintain the shape of the input end 54 of the carbon nanotube layer or the nanocarbon line-like structure, the carbon nanotube layer or The nanocarbon line-like structure may be fixed in shape by heat treatment in a vacuum atmosphere or in the presence of a shielding gas by a heat treatment at a predetermined temperature. The predetermined temperature required to maintain the nanocarbon tube layer or the nanocarbon line-like structure in a fixed shape of the input end 54 may be 600 to 2000 degrees Celsius, and preferably, the predetermined temperature is 1600 to 1700 degrees Celsius. Since the carbon nanotubes in the carbon nanotube layer or the nanocarbon line-like structure are combined with each other by van der Waals force, the heat treatment process, the carbon nanotubes connected to each other due to the effect of van der Waals force It can achieve a welding effect and keep it in a predetermined shape. The heat treatment process can be carried out by heating current or high temperature heating:

(1) For the heating current mode, a heating current can be directly supplied to the fixed-shaped carbon nanotube layer or the nanocarbon line-like structure for a certain period of time. The heating The magnitude of the current can be determined by the thickness and area of the carbon nanotube layer or by the diameter and length of the nanocarbon line structure, which should ensure that the temperature of the carbon nanotube or nanocarbon line structure is reached. The predetermined temperature. In the process of heat treatment by heating current, if the heat treatment is maintained for a long time, the defect of the carbon nanotube layer or the nanocarbon line-like structure itself and the loss of carbon may be caused, so the maintenance time is No more than 4 hours is preferred.

(2) For the high-temperature heating mode, the fixed-shaped carbon nanotube layer or the nanocarbon line-like structure may be placed in a high-temperature environment having a predetermined temperature, such as a graphite furnace, and maintained for a period of time, the maintenance time being The temperature depends on the level. For example, the heat treatment is performed at a predetermined temperature of about 2000 degrees Celsius for about 0.5 to 1 hour.

Through the above treatment, the carbon nanotube layer or the nanocarbon line-like structure can maintain a fixed shape without deformation, so the input end 54 can be composed of a pure carbon nanotube structure.

When the input end 54 includes a carbon nanotube composite layer, when the carbon nanotube composite layer comprises a carbon nanotube layer, the arrangement of the carbon nanotube layer and the input end 54 are formed by a carbon nanotube layer The arrangement is consistent when the composition is composed; when the carbon nanotube composite layer comprises one or a nano-carbon nanotube nano-carbon line structure, the arrangement of the nano-carbon line-like structure and the input end 54 are made of nano The arrangement of the carbon line-like structure is the same.

Referring to FIG. 29, a sixth embodiment of the present invention provides a touch screen input finger sleeve 60. The touch screen input finger sleeve 60 includes a finger sleeve 62 and an input end 64.

The finger sleeve 62 is a finger ring having an annular structure for the sleeve to be placed on the finger. The shape of the ring is not limited, only the touch screen input finger is satisfied. The sleeve 60 can be fixed to the user's finger through the finger ring. The ring may be a ring structure or a C structure. The material of the finger ring is a conductive material and may be a metal, an alloy or a conductive polymer.

The input end 64 is fixed to the finger sleeve 62. Since the finger sleeve 62 is an annular structure, the input end 64 is fixed to a protruding structure on the circumference of the annular structure. The input end 64 is electrically connected to the finger sleeve 62 and can be fixed to the finger sleeve 62 by welding, mechanical connection or conductive adhesive. The structure of the input terminal 64 is the same as that of the input terminal 14 provided by the first embodiment, or the structure of the input terminal 54 provided by the fifth embodiment.

The touch screen input finger sleeve provided by the invention has the following advantages: First, the touch screen input finger sleeve can be electrically connected with the finger through the conductive layer of the input end when using the input screen, and the information can be input to the touch screen by using the input end, so that the information is not dirty. a touch screen; secondly, the conductive layer of the present invention, that is, the material contacting the touch screen (such as a carbon nanotube, graphene or a composite material thereof) has a small hardness and a friction coefficient, which is not easy to cause damage to the touch screen; The contact area between the input end and the touch screen can be well controlled, and the smaller button can be operated sensitively; Fourthly, since the touch screen finger sleeve can be operated on one finger when used, no need to operate with respect to the input pen By operating the touch screen at the same time, the touch screen can be operated by one hand.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by persons skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims.

10‧‧‧Touch screen input finger sleeve

12‧‧‧ finger sleeve

14‧‧‧ input

142‧‧‧Part I

144‧‧‧ second part

146‧‧‧Support

148‧‧‧ Conductive layer

16‧‧‧ gap

Claims (20)

A touch screen input finger sleeve includes: a finger sleeve; an input end, the input end is disposed on the finger sleeve; and the improvement is that the input end comprises a support body and a conductive layer disposed on the surface of the support body a layer, the conductive layer is a carbon nanotube composite layer, the carbon nanotube composite layer comprises a plurality of carbon nanotubes, and each of the plurality of carbon nanotubes has a surface Coating a layer of conductive material, a gap exists between the carbon nanotubes coated with the conductive material layer in the carbon nanotube composite layer, the carbon nanotube composite material comprising a plurality of micropores, the micropores The pore size is less than or equal to 5 microns. The touch screen input finger sleeve according to Item 1, wherein the carbon nanotubes in the carbon nanotube composite material form a carbon nanotube structure, and the carbon nanotube structure comprises at least one nanometer. Carbon tube membrane, at least one nano carbon line structure or a composite structure of a carbon nanotube membrane and a nano carbon line structure. The touch screen input finger sleeve of claim 2, wherein the carbon nanotubes in the carbon nanotube structure are connected end to end by van der Waals force. The touch screen input finger sleeve of claim 2, wherein the carbon nanotube structure comprises a nano carbon line structure, and the nano carbon line structure is spirally wound around a surface of the support. The touch screen input finger sleeve according to Item 2, wherein the carbon nanotube structure comprises a plurality of nano carbon line-like structures, and the plurality of nano carbon line-like structures cross each other to form a network structure. The mesh structure is disposed on a surface of the support. The touch screen input finger sleeve of claim 1, wherein the carbon nanotubes in the carbon nanotube composite structure extend along a normal direction of the surface of the support body. The touch screen input finger sleeve according to Item 1 of the claim, wherein the material of the finger sleeve is soft A conductive material comprising the flexible material and metal particles distributed in the flexible material. The touch screen input finger sleeve according to Item 1, wherein the finger sleeve is a cylindrical structure with open ends, the input end is fixed to one end of the finger sleeve, and the input end includes a A first portion and a second portion, the first portion being located inside the finger sleeve and the second portion being located outside the finger sleeve. The touch screen input finger sleeve of claim 8, wherein the surface of the first portion in contact with the finger has a curved surface, and the second portion includes a convex structure. The touch screen input finger sleeve of claim 8, wherein the side of the input end that contacts the finger sleeve includes a slit. The touch screen input finger sleeve according to Item 1, wherein the support body is a hollow structure. The touch screen input finger sleeve according to Item 1, wherein the finger sleeve is open at one end and closed at one end, and the closed end is provided with at least one through hole, and the input end is disposed in the closed end. Wall or outer wall surface. A touch screen input finger sleeve is improved in that it comprises: a finger sleeve which is a cylindrical structure which is open at one end and open at the other end, and includes an inner surface and an outer surface; a conductive layer, the conductive layer Provided on a surface of the finger sleeve, the conductive layer electrically connects at least a portion of the inner surface of the finger sleeve to the outer surface of the finger sleeve, and the portion of the conductive layer at the closed end of the finger sleeve is an input end, the conductive layer The carbon nanotube composite layer comprises a plurality of carbon nanotubes, and each of the plurality of carbon nanotubes is coated with a layer of conductive material a gap between the carbon nanotubes coated with the conductive material layer in the carbon nanotube composite layer, the carbon nanotube composite material comprising a plurality of micropores having a pore diameter of 5 micrometers or less . The touch screen input finger cot of claim 13, wherein the conductive layer covers the entire inner surface and the outer surface of the finger sleeve, and the conductive layer is electrically connected at an open end of the finger sleeve. The touch screen input finger cot of claim 13, wherein the conductive layer covers the entire outer surface and a portion of the inner surface of the finger sleeve, and the conductive layer is electrically connected at an open end of the finger sleeve. The touch screen input finger cot according to claim 13, wherein the finger sleeve includes at least one through hole, and the conductive layer covers an outer surface of the finger sleeve and the plurality of through holes. The touch screen input finger sleeve of claim 13, wherein the finger sleeve includes at least one through hole, the conductive layer covers an inner surface and an outer surface of the finger sleeve, and the at least one through hole is disposed There is a conductive connection that electrically connects the conductive layer on the inner surface of the finger sleeve to the conductive layer on the outer surface of the finger sleeve. A touch screen input finger sleeve includes: a finger sleeve; an input end, the input end is fixed to the finger sleeve; and the improvement is that the input end is composed of a carbon nanotube composite material, the carbon nanotube The composite material comprises a plurality of carbon nanotubes, each of the plurality of carbon nanotubes is coated with a layer of conductive material, and the layer of the carbon nanotube composite material is coated with a layer of conductive material There is a gap between the carbon nanotubes such that the carbon nanotube composite comprises a plurality of micropores having a pore size of 5 microns or less. The touch screen input finger sleeve of claim 18, wherein the finger sleeve is a finger ring having an annular structure, and the input end is a protruding structure fixed on a circumference of the annular structure. The touch screen input finger sleeve of claim 18, wherein the finger sleeve is a cylindrical structure, the input end is fixed to one end of the finger sleeve, and the input end includes a first portion and A second portion, the first portion being located inside the finger sleeve and the second portion being located outside the finger sleeve.