TWI356516B - Touch panel and displaying device using the same - Google Patents

Description

135,6516 Aug. 19, 100, revised replacement page, invention description: [Technical Field] [0001] The present invention relates to a touch screen and a display device, and more particularly to a touch screen using a carbon nanotube transparent conductive layer and using the same The display of the touch screen

[Prior Art] [0002] 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 visually confirms the display content of the display device located on the back surface of the touch panel by the touch panel, and presses the touch panel to operate by a finger or a pen. Thereby, various functions of the electronic device can be operated. [0003] According to the working principle of the touch screen and the transmission medium, the previous touch screens are divided into four types, namely, resistive, capacitive, infrared, and surface acoustic waves. Capacitive touch screens are widely used due to their high accuracy and strong anti-interference ability (Li Shuben, Wang Qingdi, Ji Jianhua, Optoelectronic Technology, Vol. 15, P62 (1955)). [0004] A capacitive touch screen of the prior art includes a glass substrate, a transparent conductive layer, and a plurality of metal electrodes. In the capacitive touch screen, the material of the glass substrate is nano #5 glass. The transparent conductive layer is a transparent material such as copper tin oxide (IT0) or antimony tin oxide (barium oxide). The electrodes are formed by printing a conductive metal such as silver having a low electrical resistance. The electrodes are spaced apart at various corners of the transparent conductive layer. Further, the transparent conductive layer is coated with a passivation layer. The passivation layer is passed through a hardening or densification process from a liquid glass material, 096149375 Form No. 1010101 Page 3 of 25 1003306402-0 1356516 _^ 100 years · August 19th, the shuttle is replaced and heat treated to form. [0005] When a touch object such as a finger touches the surface of the touch screen, a coupling capacitance is formed between the touch object such as a human body electric field, a finger, and the like, and the transparent conductive layer in the touch screen. For high-frequency currents, the capacitance is the direct conductor, and the touch of a finger or the like will draw a small current from the contact point. This current flows out of the electrodes on the touch screen, respectively, and the current flowing through the four electrodes is proportional to the distance from the finger to the four corners. The touch screen controller calculates the position of the touch point by accurately calculating the ratio of the four currents. [0006] However, in the prior art, a low-resistance conductive metal plating layer such as silver or copper or a metal foil is generally used as an electrode of a capacitive touch screen, which have the disadvantages of 'mechanical and chemical durability, and the like, and when the touch screen When the substrate is a flexible substrate and the metal plating or the metal foil is used as the upper electrode on the flexible substrate, the metal plating or the metal foil is easily peeled off and damaged due to the bending of the substrate after being used for a plurality of times, thereby causing the previous Capacitive touch screens and display devices have poor durability and short life. In addition, the use of a low-resistance conductive metal such as silver or copper as the electrode is expensive, so that the touch panel using the electrode is costly. ® [0007] In view of this, it is necessary to provide a touch screen with high resolution, high precision, and durability, and a display device using the touch screen. SUMMARY OF THE INVENTION [0008] A touch screen includes a substrate; a transparent conductive layer, the transparent conductive layer is disposed on a surface of the substrate; and at least two electrodes, the at least two electrodes are spaced apart from the transparent conductive layer Or the surface of the substrate and electrically connected to the transparent conductive layer. Wherein the electrode comprises a carbon nanotube layer. Form number Α0101 096149375 Page 4 of 25 page 1003306402-0 1356516 100 years. August 19th revised replacement page [0009] A display device comprising a touch screen, the touch screen comprising a substrate, a transparent conductive layer, the transparent The conductive layer is disposed on a surface of the substrate, and at least two electrodes are disposed on the transparent conductive layer or the surface of the substrate and electrically connected to the transparent conductive layer; and a display device, the display device is directly opposite Close to the base of the touch screen. Wherein the electrode further comprises a carbon nanotube layer. [0010] Compared with the prior art touch screen and display device, the touch screen and the display device provided by the technical solution have the following advantages: First, since the carbon nanotube layer has good toughness and mechanical strength, the above The carbon nanotube layer replaces the previous metal plating or metal foil as an electrode, which can correspondingly improve the durability of the touch screen, thereby improving the durability of the display device using the touch screen, especially when the substrate of the touch screen is made of a flexible material. When a flexible touch screen is formed, the carbon nanotube layer is used as an electrode to improve the bending resistance of the electrode and improve the service life of the flexible touch screen. Secondly, the process of preparing the carbon nanotube film by the direct stretching method is simple in operation, low in cost, and can directly adhere to the substrate or the conductive layer by using the directly stretched nano carbon tube film. It is advantageous for large-scale production of touch screens and display devices using a carbon nanotube film structure as an electrode. [Embodiment] Hereinafter, a touch panel and a display device of the present technical solution will be described in detail with reference to the accompanying drawings. Referring to FIGS. 1 and 2, the touch screen 20 includes a substrate 22, a transparent conductive layer 24, at least two electrodes 28, and a protective layer 26. The base 22 has a first surface 221 and a second surface 222 opposite the first surface 221. The transparent conductive layer 24 is disposed on the first surface 221 of the base 22; the above at least two 096149375 Form No. A0101 Page 5 / Total 25 pages 1003306402-0 1356516 On August 19, 2014, the shuttle replacement page electrodes 28 are respectively disposed in the transparent Each corner or side of the conductive layer 24 is electrically connected to the transparent conductive layer 24 for forming an equipotential surface on the transparent conductive layer 24. The protective layer 26 can be disposed directly on the transparent conductive layer 24 and the electrode 28.

Specifically, four electrodes 28 may be respectively disposed on the four corners or four sides of the transparent conductive layer 24 to form a uniform resistor network on the transparent conductive layer 24. In the present embodiment, four strip electrodes 28 are spaced apart from each other on four sides of the same surface of the transparent conductive layer 24. It can be understood that the above-mentioned electrodes 28 can also be disposed on different surfaces of the transparent conductive layer 24. The key point is that the electrodes 28 are disposed such that an equipotential surface is formed on the transparent conductive layer 24. In this embodiment, the electrode 28 is disposed on a surface of the transparent conductive layer 24 away from the substrate 22. [0014] It can be understood that the four electrodes 28 can also be disposed between the transparent conductive layer 24 and the substrate 22 and electrically connected to the transparent conductive layer 24. [0015] The base 22 is a curved or planar structure. The base 22 is formed of a hard material such as glass, quartz, diamond or plastic or a flexible material. The base 22 serves primarily as a support. [0016] The transparent conductive layer 24 is a conductive indium tin oxide (ITO) layer, a carbon nanotube layer, a conductive polymer layer, or other transparent conductive material. [0017] The electrode 28 includes a carbon nanotube layer comprising a plurality of carbon nanotubes. Specifically, the carbon nanotube layer may further include a plurality of carbon nanotube film overlapping arrangements. The carbon nanotube film in the above carbon nanotube layer is composed of ordered or disordered carbon nanotubes, and the carbon nanotube film has a uniform thickness. Specifically, the carbon nanotube layer includes none 096149375 Form No. A0101 Page 6 of 25 1003306402-0 1356516

In 1100 and August, the replacement of the carbon nanotube film or the ordered carbon nanotube film of the order I is corrected, and the carbon nanotubes are disordered or arranged in each direction. The non-sequentially arranged carbon nanotubes are intertwined, and the isotropically arranged carbon nanotubes are laid flat on the surface of the carbon nanotube film. The ordered carbon nanotube film allows the carbon nanotubes to be aligned in the same direction or in different directions. When the carbon nanotube layer comprises a multi-layered ordered carbon nanotube film, the multilayer carbon nanotube film can be overlapped in any direction, and therefore, in the carbon nanotube layer, the carbon nanotubes are along the same or Different orientations are preferred. - [0018] The carbon nanotube film may have a width of from 1 micrometer to 10 centimeters and a thickness of from 10 nanometers to 10 micrometers. The carbon nanotubes include single-walled carbon nanotubes, double-walled carbon nanotubes or multi-walled carbon nanotubes. 5奈。 The diameter of the diameter of the single-walled carbon nanotubes is 0 5 nm to 50 nm, the diameter of the double-walled carbon nanotubes is 1. Meters ~ 50 nm. In the embodiment, the electrode 28 is a multi-layered ordered carbon nanotube film which is arranged in an overlapping manner, and the overlapping angle of the multilayered carbon nanotube film is not limited. The carbon nanotubes in each layer of the carbon nanotube film are arranged in an orderly manner. Further, the carbon nanotube film of each layer comprises a plurality of carbon nanotube bundles arranged in a preferred orientation, the bundles of carbon nanotubes having substantially the same The lengths are connected end to end in a continuous carbon nanotube film. [0〇2〇] The preparation method of the carbon nanotube film in the electrode 28 of the present embodiment mainly comprises the following steps: [Face] Step 1: providing a carbon nanotube array, preferably, the array is super-shunned nanometer Carbon tube array. 096149375 Form No. A0101 Page 7 / Total 25 Page 1003306402-0 1356516 [0022] 100 years. August 19th, nuclear replacement page The embodiment of the present invention provides a carbon nanotube array as a single-walled carbon nanotube array, Double-walled carbon nanotube arrays, or multi-walled carbon nanotube arrays. In this embodiment, the method for preparing the super-sequential carbon nanotube array adopts a chemical vapor deposition method, and the specific steps include: (a) providing a flat substrate, the substrate may be selected from a P-type or N-type germanium substrate, or selected The tantalum substrate is formed with an oxide layer. In this embodiment, a 4-inch tantalum substrate is preferably used; (b) a catalyst layer is uniformly formed on the surface of the substrate, and the catalyst layer material may be iron (Fe), cobalt (Co) or nickel ( One of Ni() or any combination thereof; (c) annealing the substrate on which the catalyst layer is formed in air at 700 to 900 ° C for about 30 minutes to 90 minutes; (d) placing the treated substrate in the opposite direction ® should be heated to 500~740 °C in a protective gas atmosphere, and then reacted with carbon source gas for about 5~30 minutes to grow a super-aligned carbon nanotube array with a height of 200~40 0 micron. . The super-sequential carbon nanotube array is an array of pure carbon nanotubes formed by a plurality of carbon nanotubes that are parallel to each other and grown perpendicular to the substrate. The super-sequential carbon nanotube array is substantially free of impurities such as amorphous carbon or residual catalyst metal particles by controlling the growth conditions as described above. The carbon nanotubes in the array of carbon nanotubes form an array by close contact with each other by Deval force. The carbon nanotube array is substantially the same area as the above substrate. [0023] In this embodiment, the carbon source gas may be selected from acetylene, ethylene, methane and other chemically active hydrocarbons. The preferred carbon source gas in this embodiment is acetylene; the shielding gas is nitrogen or an inert gas, which is preferred in this embodiment. The shielding gas is argon. [0024] It can be understood that the carbon nanotube array provided by the embodiment is not limited to the above preparation method. It can also be a graphite electrode constant current arc discharge deposition method, laser steaming 096149375 Form No. A0101 Page 8 of 25 1003306402-0 1356516 100 years. 08 months ί9, according to the replacement page, the deposition method and so on. [0025] Step 2: Pulling a carbon nanotube film from the carbon nanotube array using a stretching tool. Specifically, the method comprises the following steps: (a) selecting a plurality of carbon nanotube segments of a certain width from the carbon nanotube array; in this embodiment, it is preferred to contact the carbon nanotube array with a tape having a certain width to select a certain width. a plurality of carbon nanotube segments; (b) stretching the plurality of carbon nanotube segments at a rate substantially perpendicular to the growth direction of the carbon nanotube array to form a continuous carbon nanotube film. φ [0026] In the step (a), the present embodiment preferably employs a tape-contacting carbon nanotube array having a width to select a plurality of carbon nanotube fragments of a certain width. When the width of the carbon nanotube film to be obtained is narrow, a plurality of tools having a narrow end face, such as a tweezers, may be used to select the plurality of carbon nanotube segments. During the stretching process of the step (b), the plurality of carbon nanotube segments are gradually separated from the substrate in the stretching direction by the tensile force, and the selected plurality of carbon nanotube segments are affected by the van der Waals force. They are continuously pulled out end to end with other carbon nanotube segments to form a nanometer φ carbon tube film. [0027] Referring to FIG. 3, the carbon nanotube film is a carbon nanotube film having a certain width formed by connecting a plurality of carbon nanotube bundles arranged in a preferential orientation. The arrangement of the carbon nanotubes in the carbon nanotube film is substantially parallel to the stretching direction of the carbon nanotube film. The preferentially oriented aligned carbon nanotube film obtained by direct stretching has better uniformity than the disordered carbon nanotube film, that is, has a more uniform thickness and has uniform electrical conductivity. At the same time, the direct stretching method for obtaining a carbon nanotube film is simple and rapid, and is suitable for industrial application. 096149375 Form No. A0101 Page 9 of 25 1003306402-0 1356516 August 19, 2014 Replacement Page [0028] In this embodiment, the width of the carbon nanotube film and the growth of the carbon nanotube array The size of the substrate is related to the length of the carbon nanotube film, which can be made according to actual needs. 5纳米〜〜 The thickness of the carbon nanotube film is 0. 5 nanometer ~ ~ The thickness of the carbon nanotube film is 0. 5 nanometer ~ 100 microns. When the carbon nanotube in the carbon nanotube film is a single-walled carbon nanotube, the diameter of the single-walled carbon nanotube is 5 nm to 50 nm. When the carbon nanotubes in the carbon nanotube film are multi-walled carbon nanotubes, the diameter of the multi-walled carbon nanotubes is from 0.5 nm to 10 nm. [0029] In the above stretching process, the plurality of carbon nanotube segments are gradually separated from the substrate in the stretching direction by the tensile force, and the selected plurality of carbon nanotube segments are selected due to the van der Waals force They are continuously pulled out end to end with other carbon nanotube segments to form a carbon nanotube film. [0030] It can be understood that since the carbon nanotubes in the super-sequential carbon nanotube array of the embodiment are very pure, and since the specific surface area of the carbon nanotube itself is very large, the carbon nanotube film itself has a relatively high Strong sticky. Therefore, the carbon nanotube film as the electrode 28 can be directly adhered to the first surface ® 221 of the substrate 22 or the transparent conductive layer 24. When the electrode 28 is disposed in a plurality of layers of the carbon nanotube film, the plurality of carbon nanotube films prepared according to the above method may be adhered to the first surface 221 or the transparent conductive layer 24 of the substrate 22 in an overlapping manner in any direction. . Preferably, the plurality of carbon nanotube films are adhered in different directions to the surface of the transparent conductive layer 24 away from the substrate to form the electrode 28. [0031] It will be appreciated that the arrangement of the electrodes 28 is not limited to the manner in which the above is directly adhered to the surface of the substrate. For example, the above four electrodes 28 may be bonded to the transparent conductive layer 24 by a conductive adhesive such as silver paste. Therefore, as long as the above-mentioned 096149375 Form No. A0101, Page 10 of 25, 1003306402-0 1356516, August 19, 100, the method of forming an electrical connection between the electrode 28 of the replacement page and the transparent conductive layer 24 should be Within the scope of protection of the invention. In addition, the above-described carbon nanotube film adhered to the first surface 221 of the substrate 22 or the transparent conductive layer 24 may be treated with an organic solvent. Specifically, an organic solvent may be dropped on the surface of the carbon nanotube film through a test tube to infiltrate the entire carbon nanotube film. The organic solvent is a volatile organic solvent such as ethanol, decyl alcohol, acetone, dichloroethane or chloroform, and ethanol is used in this embodiment. After the multi-layered carbon nanotube film is treated by the organic solvent infiltration, the carbon nanotube film can be firmly attached to the surface of the substrate under the action of the surface tension of the volatile organic solvent, and the surface volume ratio is reduced, and the viscosity is lowered. , has good mechanical strength and toughness. [0033] It can be understood that the shape of the electrode 28 and the base 22 can be selected according to the shape of the touch area of the touch screen 20. The touch area such as the touch screen 20 may be a long line touch area having a length, a triangular touch area, a rectangular touch area, or the like. In this embodiment, the touch area of the touch screen 20 is a rectangular touch area. [0034] It can be understood that when the carbon nanotube film is used as the electrode 28 in this embodiment, in order to better match the electrode and the conductive layer, the accuracy of the touch screen is further improved, and accordingly, it can be adopted and formed. A similar method to the electrode 28 adheres a carbon nanotube film as a transparent conductive layer 24 to one surface of the substrate 22. The size and shape of the touch screen are not limited by the size of the carbon nanotube film. When the width of the carbon nanotube film is smaller than the width of the touch screen, in order to cover the entire surface of the substrate, a plurality of carbon nanotube films having a certain width can be seamlessly laid on the surface of the substrate to form a complete conductive layer. . 096149375 Form No. A0101 Page 11 of 25 1003306402-0 1356516 Γ__: August 19, 2014 Shuttle Replacement Page [0035] Further, in order to extend the life of the transparent conductive layer 24 and limit the coupling to the contact point and transparent The capacitance between the conductive layers 24 may be provided with a transparent protective layer 26 on the transparent conductive layer 24 and the electrodes. The protective layer 26 may be made of nitride, oxidized stone, propylene bromide (BCB), polyester film. Or formed by an acrylic resin or the like. The protective layer 26 has a certain hardness and protects the transparent conductive layer 24. It will be appreciated that the protective layer 26 can also be subjected to a special process such as reducing glare, reducing reflection, and the like. [0036] In the present embodiment, g is disposed on the transparent conductive layer 24 on which the electrode 28 is formed.

A layer of ruthenium dioxide is used as the protective layer 26, which has a hardness of 7H. It will be appreciated that the hardness and thickness of the protective layer 26 can be selected as desired. The protective layer 26 can be directly bonded to the transparent conductive layer 24 by an adhesive. Furthermore, in order to reduce electromagnetic interference generated by the display device and to avoid errors in the signal emitted from the touch screen 20, a shielding layer 25 may be disposed on the second surface 222 of the substrate 22. The shield layer 25 may be formed of a transparent conductive β material such as indium tin oxide (ITO), antimony tin oxide (yttrium) or a carbon nanotube film. When the shielding layer 25 comprises a carbon nanotube film, the carbon nanotube film may be an oriented or other structured carbon nanotube film. In this embodiment, the carbon nanotube film comprises a plurality of carbon nanotube tubes and is oriented in the above-mentioned carbon nanotube film, and the specific structure thereof can be the same as that of the transparent conductive layer 24. The carbon nanotube film acts as an electrical grounding point and acts as a shield, thereby enabling the touch screen 20 to operate in a non-interfering environment. [0038] Please refer to FIG. 4, the embodiment of the present invention provides a display device 100. The 096149375 form number Α0101 page 12/total 25 page 1003306402-0 1356516 on August 19, the shuttle replacement page display device 100 includes a The touch screen 20 is a display device 30. The display device 30 is disposed directly adjacent to the touch screen 20. Further, the display device 30 described above is disposed adjacent to and adjacent to the second surface 222 of the base 22 of the touch screen 20. The display device 30 described above and the touch screen 20 may be spaced apart by a predetermined distance or integrated settings. [0039] The display device 30 may be one of display devices such as a liquid crystal display, a field emission display, a plasma display, an electroluminescence display, a vacuum fluorescent display, and a cathode ray tube.

Referring to FIG. 5, further, when the display device 30 is disposed at a distance from the touch screen 20, a passivation layer 104 may be disposed on a surface of the shielding layer 25 of the touch screen 20 away from the substrate 22. The passivation layer 104 may be A material such as tantalum nitride or ruthenium oxide is formed. The passivation layer 104 is spaced apart from the front side of the display device 30 by a gap 106. Specifically, two support bodies 108 are disposed between the passivation layer 104 and the display device 30 described above. The passivation layer 104 is used as a dielectric layer that protects the display device 30 from damage due to excessive external forces.

[0041] When the display device 30 is integrated with the touch screen 20, the touch screen 20 and the display device 30 are in contact with each other. Immediately after the support 108 is removed, the passivation layer 104 is provided on the front surface of the display device 30 without a gap. [0042] In addition, the display device 100 further includes a touch screen controller 40, a display device controller 60, and a central processing unit 50. The touch screen controller 40, the central processing unit 50, and the display device controller 60 are connected to each other through a circuit. The touch screen controller 40 is connected to the electrode 28 of the touch screen 20, and the display device controller 60 is connected to the display device 30. 096149375 Form No. A0101. Page 13/Total 25 Page 1003306402-0 1356516 100 August 19th Nuclear Replacement Page [0043] The principle of the touch screen 20 and the display device 100 in this embodiment is as follows: When the touch screen 20 is applied It can be directly disposed on the display surface of the display device 30. The touch screen controller 40 positions the selection information input based on the icon or menu position touched by the touch object 70 such as a finger, and transmits the information to the central processor 50. The central processing unit 50 controls the display of the display device 30 via the display controller 60. [0044] Specifically, a predetermined voltage is applied to the transparent conductive layer 24 when in use. A voltage is applied to the transparent conductive layer 24 through the electrode 28 to form an equipotential surface on the transparent conductive layer 24. The user visually confirms the display of the display device 30 disposed behind the touch screen 20, and when the user touches or approaches the protective layer 26 of the touch screen 20 by a touch object 70 such as a finger or a pen, the touch object 70 and the transparent conductive layer 24 are operated. A coupling capacitor is formed between them. For high-frequency currents, the capacitor is a direct conductor, and the finger draws a portion of the current from the contact point. This current flows out from the electrodes on the touch screen 20, respectively, and the current flowing through the four electrodes is proportional to the distance from the finger to the four corners, and the touch screen controller 40 obtains the touch point by accurately calculating the ratio of the four currents. position. Thereafter, the touch screen controller 40 transmits the φ-shaped touch position data to the central processing unit 50. Then, the central processing unit 50 accepts the above-described touch position data and executes it. Finally, the central processor 50 transmits the touch location data to the display controller 60 to display the touch information from the contact 70 on the display device 30. [0045] The touch screen 20 and the display device 100 provided by the embodiments of the present technical solution have the following advantages: First, since the carbon nanotube layer has good toughness and mechanical strength, the above-mentioned carbon nanotube layer is used instead of the previous one. The metal plating or the metal foil is used as the electrode 28, which can correspondingly improve the durability of the touch screen 20 096149375 Form No. A0101 Page 14 / Total 25 Page 1003306402-0 1356516

On August 19, 100, the core is positive, which further improves the durability of the display device 100 using the touch screen, especially when the base 22 of the touch screen 20 uses a flexible material to form a flexible touch screen. The tube layer as the electrode 28 can improve the bending resistance of the electrode 28 and improve the service life of the flexible touch screen; secondly, the process of preparing the carbon nanotube film by the direct stretching method is simple in operation, low in cost, and The direct-stretched carbon nanotube film is directly adhered to the substrate or the conductive layer, so that the touch screen 20 and the display device 100 using the carbon nanotube film structure as the electrode 28 are advantageously produced on a large scale; The carbon tube has excellent electrical conductivity. Therefore, the carbon nanotube film formed by using the carbon nanotube tube as the electrode 28 has uniform electrical conductivity, thereby improving the resolution and accuracy of the touch screen 20 and the display device 100; When the electrode 28 and the conductive layer 24 are both made of a carbon nanotube film, the electrode 28 and the conductive layer 24 can be better matched, so that the linear accuracy of the touch screen 20 is further improved. [0046] In summary, the present invention has indeed met the requirements of the invention patent, and the patent application is filed 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 those skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims. BRIEF DESCRIPTION OF THE DRAWINGS [0047] FIG. 1 is a schematic structural diagram of a touch screen according to an embodiment of the present technical solution. 2 is a cross-sectional view taken along line ΙΙ-ΙΓ of FIG. 1. 3 is a scanning electron micrograph of a carbon nanotube film in an electrode of an embodiment of the present technical solution. 096149375 Form No. A0101 Page 15 of 25 1003306402-0 1356516 On August 19, 100, according to the replacement page [0050] FIG. 4 is a schematic structural view of a display device according to an embodiment of the present technical solution. [0051] FIG. 5 is a schematic diagram showing the working principle of a display device according to an embodiment of the present technical solution. [Main component symbol description] Display device: 100 [0053] Passivation layer: 104 [0054] Gap: 1 0 6 [0055] Support: 108 [0056] Touch screen: 20 [0057] Base: 22 [0058] First surface: 221 [0059] Second surface: 222 [0060] Transparent conductive layer: 24 [0061] Shielding layer: 25 [0062] Protective layer: 26 [0063] Electrode: 28 [0064] Display device: 30 [0065 ] Touch Screen Controller: [0066] Central Processing Unit: 50 [0067] Display Device Controller [0068] Touch Object: 70 Form Number A0101

096149375 Page 16 of 25 1003306402-0

Claims (1)

100 years/August 19th 申请 Patent application scope: -: a touch screen comprising a substrate; a transparent conductive layer 'the transparent conductive layer is disposed on the surface of the substrate; and at least two electrodes, the at least two electrodes Interposed and electrically connected to the transparent conductive layer; the improvement is that 'the at least one electrode further comprises a carbon nanotube layer, and the metre reverse layer comprises at least one carbon nanotube film, the carbon nanotube thin 2 The plurality of carbon nanotubes are included, and the plurality of carbon nanotubes are aligned in the same direction in the carbon nanotube film. The touch screen of claim 1, wherein the nanocarbon The tube layer comprises a multi-layered carbon nanotube film which is arranged in an overlapping manner. The touch panel of the invention, wherein the carbon nanotube in the carbon nanotube film is parallel to the surface of the carbon nanotube film. The touch screen of claim 2, wherein the carbon nanotubes arranged in the same direction have equal lengths and are connected end to end by van der Waals force to form continuous nano carbon. The touch screen of claim 4, wherein the carbon tube bundles in the adjacent two carbon nanotube films of the plurality of overlapping carbon nanotube films form an angle α, and The touch screen of claim 1, wherein the carbon nanotube film has a thickness of from 0.5 nm to 100 μm. The touch screen, in which the width of the thin cymbal is 1 micron to 10 PCT. ', uncarbon &amp; form number Α 0101 page 17 / a total of 25 pages 1003306402-0 I 100 years of August 19 revised miscellaneous page I 'if application The touch screen of claim 1, wherein the carbon nanotubes in the carbon nanotubes are single-walled carbon nanotube double-walled carbon nanotubes or multi-walled carbon nanotubes. The touch screen of item 8, wherein the single-walled nanocarbon b is directly from 0.5 nm to 5 nanometers, and the double-walled carbon nanotube has a diameter of 1.0 nm to 5 nanometers. The multi-walled carbon nanotube has a diameter of 15 nm to 50 nm. The touch screen described in the patent application scope (4), wherein The touch screen further includes a protective layer 'the underlayer is disposed on a surface of the transparent conductive layer away from the substrate 》. The touch screen according to claim 1 (), wherein the protective layer material is nitrided, oxidized Shi Xi, styrene-butadiene, polyester film or acrylic resin 〇12 13 14 15 16 096149375. If the patent application is based on item 1 (4), the touch screen is a flat touch screen or a curved touch screen. The touch screen of claim 1, wherein the material of the substrate is a glass of quartz, diamond or a flexible transparent material. The touch screen of claim 1, wherein the touch screen further comprises a shielding layer disposed on the surface of the substrate away from the transparent conductive layer, the shielding layer material being an indium tin oxide film, a tin oxide film or a carbon nanotube film. The touch screen of claim 14, wherein the shielding layer is a T-carbon film, and the carbon nanotube film comprises a plurality of carbon nanotubes, the plurality of carbon nanotubes in the Oriented alignment in the carbon nanotube film. The touch screen of claim 1, wherein the at least two electrodes are spaced apart from each other at a surface of the transparent conductive layer away from the substrate. Form No. A0101 Page 18 of 25 </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; A touch screen includes a substrate; a transparent conductive layer disposed on a surface of the substrate; and at least two electrodes spaced apart from each other and electrically connected to the transparent conductive layer; The above-mentioned at least-electrode advance step includes a carbon nanotube layer, and the transparent conductive layer is a carbon nanotube film, and the carbon nanotube film of the transparent conductive layer is composed of a plurality of carbon nanotubes. The touch screen of claim 18, wherein the plurality of carbon nanotube tubes are aligned in the same direction in the carbon nanotube film and parallel to the surface of the carbon nanotube film. The touch screen of claim 19, wherein the non-carbon members arranged in the same direction are of equal length and are connected end to end by a van der Waals force to form a continuous bundle of carbon nanotubes. A display device comprising: the touch screen according to claim 1 or 18; and a display device that is disposed adjacent to the substrate of the touch screen, such as the display device of claim 21 The m display device is one of a liquid crystal display, a field emission display, an electric field display, an electroluminescence display, a vacuum fluorescent display, and a cathode ray tube. The display device according to claim 21, wherein the display device is spaced from the touch screen or the touch screen is integrated on the display device. The display device according to claim 21, wherein the touch screen further comprises a passivation layer, the passivation layer. The display device of claim 21, wherein the touch screen further comprises a passivation layer. It is disposed between the touch screen and the display device, and is disposed in contact with the touch screen, and is disposed at a certain distance from the display device. The display device according to claim 24, wherein the passivation layer material is nitride rock and oxidized stone. The display device of claim 25, wherein the display device further comprises a touch screen controller, a central processing unit, and a display device controller, wherein the touch screen controller, the central processing unit, and The display device controllers are connected to each other through a circuit, and the touch screen controller is electrically connected to the touch screen, and the display device controller is connected to the display device. 096149375 Form No. A0101 Page 20 of 25 1003306402-0