TWI354921B - Touch panel and displaying device using the same - Google Patents

Description

1354921 ___ 100 years of July 15th, the replacement of the six hundred, the invention description: [Technical field of the invention] [0001] The present invention relates to a touch screen and a display device using the same, and more particularly to a carbon nanotube-based touch screen And a display device using 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 in front of display elements such as liquid crystals are gradually increasing. . The user of such an electronic device operates by pressing the touch panel with a finger or a pen while visually checking the display content of the display element located on the back surface of the touch panel via the touch panel. 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 prior touch screens are generally divided into four types, namely, resistive, capacitive sensing, infrared, and surface acoustic wave. Resistive touch screens are the most widely used, see the literature "Production of Transparent Conductive Films with Inserted Si〇2 Anchor Layer, and Application to a Resistive Touch Panel" Kazuhiro Noda, Kohtaro Tanimura.

Electronics and Communications in Japan,

Part 2, Vol. 84, P39-45 (2001). [0004] A conventional resistive touch screen generally includes an upper substrate having an upper transparent conductive layer formed on a lower surface thereof, a lower substrate having a lower transparent conductive layer formed on an upper surface thereof, and a plurality of dot spacers (Dot 096151296 Form No. A0101 Page 4 / Total 30 Pages 1003254723-0 1354921 Correction Replacement Page, July 15, 100

Spacer) is disposed between the upper transparent conductive layer and the lower transparent conductive layer. The upper transparent conductive layer and the lower transparent conductive layer are usually made of an indium tin oxide (ITO) layer (hereinafter referred to as an IT0 layer) having a conductive property. When the upper substrate is pressed with a finger or a pen, the upper substrate is twisted such that the upper transparent conductive layer and the lower transparent conductive layer at the pressing portion are in contact with each other. The voltage is sequentially applied to the upper transparent conductive layer and the lower transparent conductive layer through the external electronic circuit, and the touch screen controller measures the voltage change on the first 'conductive layer and the voltage change on the second conductive layer separately, and performs accurate calculation. It is converted to contact coordinates. The touch screen controller passes the digitized contact coordinates to the central processor. The central processor issues corresponding commands according to the coordinates of the touch points, initiates various function switching of the electronic device, and controls display of the display elements through the display controller. [0005] However, the ΙΤ0 layer as a transparent conductive layer is usually prepared by ion beam sputtering or evaporation, in the process of preparation, a high vacuum environment is required and heating needs to be 200 to 300 ° C, so that the ΙΤ 0 layer The preparation cost is higher. In addition, the ΙΤ0 layer as a transparent conductive layer has disadvantages such as insufficient mechanical properties, difficulty in bending, and uneven distribution of resistance values. In addition, ΙΤ0 will gradually decrease in transparency in humid air. As a result, the prior resistive touch screens and display devices have disadvantages such as insufficient durability, low sensitivity, linearity, and poor accuracy. [0006] In view of this, it is indeed necessary to provide a touch screen and a display device which are durable, high in sensitivity, linear and accurate. SUMMARY OF THE INVENTION [0007] A touch screen includes: a first electrode plate, the first electrode plate includes a first substrate, a first conductive layer, and at least two first electrodes, the 096151296 form number A0101 5 pages / total 30 pages 1003254723-0 1354921 July 15th, 100th of the nuclear replacement page, a conductive layer is disposed on the lower surface of the first substrate, and the at least first electrodes are respectively disposed on the lower surface of the first electrode plate a first substrate along the first direction and electrically connected to the first conductive layer; and a second electrode plate spaced apart from the first electrode plate, the second electrode plate comprising a second substrate, a second a conductive layer and at least two second electrodes, the second conductive layer is disposed on an upper surface of the second substrate, and the at least two second electrodes are respectively spaced apart from the upper surface of the second electrode plate in the second direction And electrically connected to the second conductive layer; wherein at least one of the first conductive layer and the second conductive layer comprises a plurality of carbon nanotube strip film structures arranged in parallel and spaced apart, the Multiple carbon nanotube strips A plurality of electrodes are respectively disposed at two ends of the electrode plate of the membrane structure, and two ends of each of the carbon nanotube strip-shaped membrane structures are respectively electrically connected to two opposite electrodes, and each of the electrodes and at least one nanometer One end of the carbon nanotube film structure is electrically connected. [0008] A display device including the touch screen includes: a touch screen, the touch screen includes a first electrode plate and a second electrode plate, the first electrode plate includes a first substrate, a first conductive layer, and at least Two first electrodes, the first conductive layer is disposed on a lower surface of the first substrate, and the at least two first electrodes are respectively disposed at two ends of the lower surface of the first electrode plate in a first direction and a conductive layer is electrically connected; the second electrode plate is spaced apart from the first electrode plate, the second electrode plate includes a second substrate, a second conductive layer and at least two second electrodes, and the second conductive layer is disposed at The upper surface of the second substrate, the at least two second electrodes are respectively disposed at two ends of the second electrode plate in the second direction and electrically connected to the second conductive layer; and a display device, the display The device is facing and depends on 096151296 Form No. A0101 Page 6 / Total 30 Page 1003254723-0 1.354921

1100, 〇July 15th, according to the replacement page I, the second electrode plate of the above touch screen; wherein at least one of the first conductive layer and the second conductive layer comprises a plurality of parallel and spaced apart a carbon nanotube tube-like membrane structure, wherein the two ends of the electrode plate provided with a plurality of carbon nanotube strip-shaped membrane structures are respectively provided with a plurality of electrodes respectively, and the two ends of each of the carbon nanotube strip-shaped membrane structures are Each of the electrodes is electrically coupled to two opposite electrodes and each of the electrodes is electrically coupled to one end of at least one of the carbon nanotube ribbon film structures. [0009] Compared with the prior art, the touch screen and the display device provided by the technical solution have the following advantages: First, since the plurality of carbon nanotube film films in the transparent conductive layer are parallel and spaced apart, the The transparent conductive layer has good mechanical properties, so that the transparent conductive layer has good mechanical strength and toughness. Therefore, the above-mentioned carbon nanotube film structure is used as the transparent conductive layer, and the touch screen can be correspondingly improved. Durability, thereby improving the durability of the display device using the touch screen; second, the plurality of carbon nanotube film films in the transparent conductive layer are parallel and spaced apart, so that the transparent conductive layer has a uniform resistance Distribution and light transmission, and each of the electrodes is electrically connected to one end of at least one of the carbon nanotube strip film structures, so that the position of the touched point can be more accurately determined by detecting a voltage change between the electrodes at the touched point Thereby, it is advantageous to improve the resolution and accuracy of the touch screen and the display device using the touch screen. [Embodiment] [0010] A touch screen and a display device provided by the present technical solution will be described in detail below with reference to the accompanying drawings. [0011] Please refer to FIG. 1 and FIG. 2 'The embodiment of the present invention provides a touch screen 10 096151296 Form No. A0101 Page 7 / Total 30 Page 1003254723-0 1354921 On July 15, 100, the touch screen ίο includes - the - electrode The plate 12, the second electrode plate 14, and a plurality of transparent dot-like spacers 16 disposed between the first electrode plate 12 and the second electrode plate 14 are provided. [0012] The first electrode plate 12 includes a first substrate 12A, a first conductive layer 122 and at least two first electrodes 124. The first substrate m is a planar structure, and the first conductive layer 122 and the at least two first electrodes 124 are disposed on the lower surface of the first substrate 12G. The at least two first electrodes 124 are respectively disposed at both ends of the lower surface of the first conductive layer 122 in the first direction and are electrically connected to the first conductive layer 122. The second electrode plate η includes a second substrate ho, a first conductive layer 142 and at least two second electrodes 144. The second substrate 140 is a planar structure, and the second conductive layer 142 and the at least two second electrodes 144 are respectively disposed on the upper surface β of the first substrate 140. The at least two second electrodes 144 are respectively disposed on the second conductive layer. Both ends of the upper surface of the crucible 42 in the second direction are electrically connected to the second conductive layer 142. The first direction is perpendicular to the second direction. The second substrate 140 is a transparent substrate, and the second substrate 140 is made of a hard material such as glass, quartz, diamond or plastic. Or flexible material. The second substrate 14〇 functions primarily as a support. The material of the first electrode 124 and the second electrode 144 is a metal, a carbon nanotube film or other conductive material. In the embodiment, the first substrate is a polyester film, and the second substrate 14 is a glass substrate. The at least two first electrodes 124 and the at least two second electrodes 144 are electrically conductive silver paste layers. It can be understood that the electrode may be disposed between the conductive layer and the substrate or disposed on the substrate, and is electrically connected to the conductive layer, and is not limited to the above arrangement. As long as the above-mentioned electrodes and the conductive 096151296 form number Α 0101 page 8 / total 30 pages 1003254723-0 [0013] 1.354921 100 years of July 15 to replace the replacement page layer to form an electrical connection should be in the protection of the present invention Within the scope. [0014] Further, an insulating layer 18 is disposed on the periphery of the upper surface of the second electrode plate 14. The first electrode plate 12 is disposed on the insulating layer 18, and the first conductive layer 122 of the first electrode plate 12 is disposed opposite to the second conductive layer 142 of the second electrode plate 14. The plurality of transparent dot spacers 16 are disposed between the first conductive layer 122 and the second conductive layer 142, and the plurality of transparent dot spacers 16 are spaced apart from each other. The distance between the first electrode plate 12 and the second electrode plate 14 is 2 to 10 μm. Both the insulating layer 18 and the transparent dot spacer 16 may be made of an insulating transparent resin or other insulating transparent material. The insulating layer 18 and the transparent dot spacers 16 are disposed to electrically insulate the first electrode plate 14 from the second electrode plate 12. It can be understood that when the size of the touch screen 10 is small, the transparent dot spacer 16 is an optional structure, and it is only necessary to ensure that the first electrode plate 14 is electrically insulated from the second electrode plate 12. [0015] at least one of the first conductive layer 122 and the second conductive layer 142 includes a plurality of carbon nanotube strip film structures arranged in parallel and spaced apart, wherein the plurality of carbon nanotube strips are disposed A plurality of electrodes are respectively disposed at two ends of the electrode plate of the film structure, and two ends of each of the carbon nanotube film-like film structures are respectively electrically connected to two opposite electrodes, and each of the electrodes and at least one One end of the carbon nanotube film structure is electrically connected. The carbon nanotube film structure is a layer of carbon nanotube film comprising a plurality of aligned carbon nanotubes. In addition, the carbon nanotube film structure may also be a stacked multi-layered carbon nanotube film, each layer of carbon nanotube film comprising a plurality of aligned carbon nanotubes, and adjacent two layers of naphthalene The carbon nanotubes in the carbon nanotube film are arranged in the same direction or in different directions. The carbon nanotube film further comprises a plurality of first and last phases 096151296 Form No. A0101 Page 9 / Total 30 pages 1003254723-0 1354921 100 years of July 15 nuclear replacement of the serial carbon nanotube bundle fragments, each nanometer The carbon tube bundle segments are of equal length and each of the carbon nanotube bundle segments is composed of a plurality of mutually parallel carbon nanotube bundles, and the plurality of carbon nanotube bundle segments are connected to each other by a van der Waals force. The adjacent carbon nanotube bundles are tightly coupled by a van der Waals force, and the bundle of carbon nanotubes includes a plurality of carbon nanotubes of equal length and arranged in parallel. The carbon nanotubes may be one or more of a single-walled carbon nanotube, a double-walled carbon nanotube, and a multi-walled nano-tube. The carbon nanotube film structure has a width of 1 mm to 10 cm. The carbon nanotube film structure has a thickness of from 0.5 nm to 100 μm. The spacing between the carbon nanotube film structures is 5 nm to 1 mm. [0016] In the embodiment of the technical solution, the first conductive layer 122 and the second conductive layer 142 each include a plurality of parallel and spaced carbon nanotube film structures, and the first conductive layer The carbon nanotube film-like film structure is disposed to intersect with the carbon nanotube film structure in the second conductive layer. Since the first conductive layer 122 is parallel to and spaced apart from the carbon nanotube film structure in the second conductive layer 142, preferably, the first conductive layer 122 and the nano carbon in the second conductive layer 142 The strip-shaped film structures are arranged in parallel and at equal intervals such that the first conductive layer 122 and the second conductive layer 142 have a uniform resistance distribution and light transmission characteristics, and each of the electrodes and the conductive layer One end of at least one of the carbon nanotube film-like film structures is electrically connected, so that the position of the touched point can be more accurately determined by detecting a voltage change between the first electrode 142 and the second electrode 144 at the touched point, thereby facilitating the position of the touched point. To improve the resolution and accuracy of the touch screen 10. [0017] In this embodiment, the size of the carbon nanotube film structure can be made according to actual needs. In this embodiment, a 4-inch substrate is used to grow super-sequential nano 096151296. Form No. A0101 Page 10/Total 30 Page 1003254723-0 1354921 Correction of replacement page carbon tube array, said carbon nanotube strip The width of the membrane structure is 1 mm to 10 cm. 5纳米〜100微米。 The thickness of the carbon nanotube film structure is 0. 5 nanometers ~ 100 micrometers. The carbon nanotubes in the ribbon structure of 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 diameter of the single-walled carbon nanotube is 0.5 nm to 50 nm; the diameter of the double-walled carbon nanotube is 1.0 nm to 50 nm; the diameter of the multi-walled carbon nanotube is 1.5 Meters ~ 50 nm. [0018] The preparation method in the first conductive layer 122 and/or the second conductive layer 142 of the embodiment mainly includes the following steps: [0019] Step 1: providing a carbon nanotube array, preferably, the array is super smooth Row of carbon nanotube arrays. [0020] The carbon nanotube array provided by the embodiments of the present technical solution is one or more of a single-walled carbon nanotube array, a double-walled carbon nanotube array, and a multi-walled carbon nanotube array. In this embodiment, the method for preparing the super-sequential carbon nanotube array adopts a chemical vapor deposition method, and the specific steps thereof include: (a) providing a flat substrate, the substrate may be selected from a P-type or N-type germanium substrate, or The germanium substrate formed with the oxide layer is selected, and the present embodiment preferably uses a 4-inch germanium substrate; (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. (Ni) or one of alloys of 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 reaction furnace, it is heated to 500-740 ° C in a protective gas atmosphere, and then reacted with a carbon source gas for about 5 to 30 minutes to grow to obtain a super-sequential carbon nanotube array having a height of 200 to 400 μm. The super-sequential carbon nanotube array is a plurality of 096151296 which are parallel to each other and grow perpendicular to the substrate. Form No. A0101 Page 11 / Total 30 pages 1003254723-0 1354921 July 15th Shuttle is replacing the carbon nanotubes Pure carbon nanotube array. Through the above controlled growth conditions, the super-sequential carbon nanotube array contains substantially no impurities, such as amorphous carbon or residual catalyst metal particles, etc. The carbon nanotubes in the carbon nanotube array pass each other through Vander Valli is in close contact with the array. The carbon nanotube array is substantially the same area as the above substrate. [0021] In the present embodiment, the carbon source gas may be a chemically active hydrocarbon such as acetylene, ethylene or decane. The preferred carbon source gas in this embodiment is acetylene; the shielding gas is nitrogen or an inert gas. A preferred shielding gas is argon. [0022] 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, a laser evaporation deposition method, or the like. [0023] 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 array of carbon nanotubes, and the present embodiment preferably uses a tape having a certain width to contact the array of carbon nanotubes to select a certain a plurality of carbon nanotube segments of a width; (b) stretching the plurality of carbon nanotube segments at a rate substantially perpendicular to the growth direction of the nanotube array to form a continuous carbon nanotube film. [0024] In the above stretching process, the plurality of carbon nanotube segments are gradually separated from the substrate in the stretching direction under the tensile force, and the selected plurality of carbon nanotube segments are respectively separated by the van der Waals force It is continuously pulled out in series with other carbon nanotube segments to form a carbon nanotube film. The carbon nanotube film comprises a plurality of end-to-end aligned carbon nanotubes 096151296 Form No. A0101 Page 12 of 30 1003254723-0 1354921 Correction replacement page on July 15, 100. The arrangement of the carbon nanotubes in the nano-disc film is substantially parallel to the stretching direction of the carbon nanotube film. [0025] 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 preferred orientation of the carbon nanotube film obtained by direct stretching has better uniformity than the disordered carbon nanotube film, i.e., has a more uniform thickness and a more uniform electrical conductivity. At the same time, the method of directly stretching the carbon nanotube film is simple and rapid, and is suitable for industrial application. In this embodiment, the width of the carbon nanotube film is related to the size of the substrate on which the carbon nanotube array is grown. The length of the carbon nanotube film is not limited and can be obtained according to actual needs. The thickness of the carbon nanotube film is from 0.5 nm to 100 μm. The carbon nanotubes in the carbon nanotube film may be one or more of a single-walled carbon nanotube, a double-walled carbon nanotube, and a multi-walled carbon nanotube. The diameter of the single-walled carbon nanotube is 0.5 nm to 50 nm, and the diameter of the double-walled carbon nanotube is 1.0 nm to 50 nm, and the diameter of the multi-walled carbon nanotube is 1.5 nm ~ 50 nm. [0027] Step 3: preparing a plurality of the above-mentioned carbon nanotube film to form a carbon nanotube film structure, and laying the carbon nanotube film structure in parallel and at intervals on the first substrate 120 or The first conductive layer 122 and the second conductive layer 142 are formed on the surface of the second substrate 140. [0028] The carbon nanotube film structure is a carbon nanotube film or a plurality of carbon nanotube films arranged in an overlapping manner. The overlapping arrangement of a plurality of carbon nanotubes 096151296 Form No. A0101 Page 13 / Total 30 pages 1003254723-0 1354921 100 July 15 E squeezed the replacement of the adjacent two layers of carbon nanotube film in the film The arrangement of the carbon nanotubes is not limited, and may be arranged in the same direction or in different directions. The spacing between the carbon nanotube film structures is 5 nm to 1 mm, which can be selected according to the light transmittance of the touch screen 10. [0029] two ends of each of the carbon nanotube film-like film structures are electrically connected to two opposite electrodes, and each of the electrodes and at least one of the conductive layers are formed. One end of the structure is electrically connected. In the embodiment of the technical solution, each of the first electrodes 124 is electrically connected to one end of one of the first conductive layers 122, and each of the second electrodes 144 is One end of one of the carbon nanotube film structures in the second conductive layer 142 is electrically connected. The arrangement direction of the carbon nanotube film structure in the first conductive layer 122 may deviate from the first direction. Preferably, the carbon nanotube film structures in the first conductive layer 122 are arranged in parallel and spaced apart in the first direction. The arrangement direction of the carbon nanotube film structure in the second conductive layer 142 may deviate from the second direction. Preferably, the second conductive layer 142 has a carbon nanotube film structure that is parallel and spaced apart along the second direction. The first direction is perpendicular to the second direction. The plurality of first electrodes 124 and the plurality of second electrodes 144 are block electrodes. The plurality of first electrodes 124 and the plurality of second electrodes 144 are connected to an external circuit through electrode leads (not shown). [0030] In addition, the plurality of carbon nanotube films can also be prepared by the following steps: using a stretching tool to pull a carbon nanotube from the carbon nanotube array to obtain a larger size carbon nanotube film. The carbon nanotube film is cut into a plurality of carbon nanotube films of equal size and size. [0031] It can be understood that the preparation of the carbon nanotube film 096151296 by the embodiment of the technical solution form No. A0101, page 4 of 30 pages, 1003254723-0, the preparation of July 15, 100 is not limited to the above-mentioned 掣 supply + - The ---, ^ Ma method, can also be used to prepare a nano carbon s film by the compaction method, the plurality of carbon nanotubes in the nano double tube film are arranged in the same direction and in the same direction. In addition, a ash, nai carbon tube film can be prepared by a flocculation method, and the carbon nanotube film comprises a plurality of intertwined carbon nanotubes. [0032] The carbon nanotubes of the ultra-shunned carbon nanotube array towel of the present example are purely viscous. Since the specific surface area of the non-nano slave is very large, the inner tube (4) itself has strong viscosity. Therefore, the carbon nanotube film structure composed of the carbon nanotube film can be directly adhered to the first substrate (10) or the second substrate 140 as the first conductive layer 122 and the first conductive layer 142. Further, the above-described carbon nanotube film structure adhered to the first substrate 12 or the second substrate 140 may be treated with an organic solvent. Specifically, the organic solvent may be dropped on the surface of the carbon nanotube film structure by a test tube to infiltrate the entire carbon nanotube film structure. The organic solvent is a volatile organic solvent such as ethanol, decyl alcohol 'acetone, di-ethane or gas-form, and ethanol is used in this embodiment. The carbon nanotube ribbon membrane structure is treated by an organic solvent impregnation process. Under the surface tension of the volatile organic solvent, the carbon nanotube ribbon membrane structure can be firmly attached to the surface of the substrate, and the surface volume ratio is Reduces 'viscosity reduction, good mechanical strength and toughness. [0034] Further, 'the light refractive index and the transmittance are different from the region where the carbon nanotube film-like film structure is disposed and the region where the carbon nanotube film film structure is not disposed'. The visual difference is minimal, and a filling layer (not shown) can be formed in the gap between the carbon nanotube film structures. The material of the filling layer has a phase with the carbon nanotube film structure 096151296 Form No. AOlOi 15 pages/total 30 pages 1003254723-0 1354921 The correction index and transmittance of the replacement page are the same or near. [0035] In addition, a transparent protective film 126 may be further disposed on the upper surface of the first electrode plate 12. The transparent protective film 126 may be made of tantalum nitride, hafnium oxide, benzophenone (BCB), polyester, acrylic resin, or the like. Material formation. The transparent protective film 126 may also employ a surface hardened, smooth scratch-resistant plastic layer, such as a polyethylene terephthalate (PET) film, for protecting the first electrode plate 12 for improved durability. The transparent protective film 126 can also be used to provide other additional functions such as reducing glare or reducing reflection. [0036] In addition, in order to reduce the electromagnetic interference generated by the display device and avoid the error of the signal emitted from the touch screen 10, a shielding layer (not shown) may be disposed on the lower surface of the second substrate 140. . The shield layer may be formed of a conductive material such as an indium tin oxide (ITO) film, a tantalum tin oxide (ITO) thin film, a nickel gold thin film, a silver thin film film, or a carbon nanotube film. In this embodiment, the shielding layer comprises a carbon nanotube film, and the arrangement of the carbon nanotubes in the carbon nanotube film is not limited, and may be oriented or arranged. In this embodiment, the carbon nanotubes in the shielding layer are aligned. The carbon nanotube film acts as an electrical grounding point and acts as a shield, allowing the touch screen 10 to operate in a non-interfering environment. Referring to FIG. 4, the embodiment of the present invention further provides a display device 100 using the touch screen 10, which includes the touch screen 10 and a display device 20. The display device 20 is disposed adjacent to and adjacent to the second electrode plate 14 of the touch screen 10 described above. The touch screen 10 can be disposed at a predetermined distance from the display device 20, or can be integrated on the display device 20. When the touch screen 10 is integrated with the display device 20, the touch screen 096151296 form number Α0101, page 16 of 30 pages 1003254723-0 1354921, the correction order page 10 of July 15th can be attached to the display device by a bonding agent. 20 on. [0038] The display device 20 of the present invention may be a display device 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. [0039] Further, when a shielding layer 22 is disposed on the lower surface of the second substrate 140 of the touch screen 10, a passivation layer 24 may be disposed on the surface of the shielding layer 22 away from the second substrate 140. The passivation layer 24 is provided. It can be formed of a material such as tantalum nitride or tantalum oxide. The passivation layer 24 is spaced apart from the front side of the display device 20 by a gap 26. The passivation layer 24 is used as a dielectric layer and protects the display device 20 from damage due to excessive external force. In addition, the display device 100 further includes a touch screen controller 30, a central processing unit 40, and a display device controller 50. The touch screen controller 30, the central processing unit 40, and the display device controller 50 are mutually connected by a circuit. The touch screen controller 30 is electrically connected to the touch screen 20. The display device controller 50 and the display device 20 Electrical connection. The touch screen controller 30 positions the selection information input by an icon or menu position touched by a touch object 60 such as a finger, and transmits the information to the central processor 40. The central processor 40 controls the display of the display element 20 by the display controller 50. [0041] In use, a voltage of 5 V is applied between the first electrodes 124 in the first electrode plate 12 and the second electrode 144 in the second electrode plate 14 in a time-sharing manner. The user visually confirms the display of the display element 20 disposed under the touch screen 10 while pressing the touch panel 60 such as a finger or a pen to press the first electrode panel 12 of the touch panel 10. The first substrate 120 in the first electrode plate 12 is bent, 096151296 Form No. A0101 Page 17/Total 30 Page 1003254723-0 1354921 The correction lane change page makes the first conductive layer 122 and the second portion of the pressing portion 70 The second conductive layer 142 of the electrode plate 14 is in contact to form a conduction. The touch screen controller 30 converts the voltage change in the first direction of the first conductive layer 122 and the voltage change in the second direction of the second conductive layer 142, respectively, and performs an accurate calculation to convert it into contact coordinates. The touch screen controller 30 passes the digitized contact coordinates to the central processor 40. The central processor 40 issues corresponding commands in accordance with the coordinates of the contacts, initiates various functional switching of the electronic device, and controls display of the display component 20 by the display controller 50. [0042] Compared with the prior art, the touch screen and the display device provided by the technical solution have the following advantages: First, since the plurality of carbon nanotube film films in the transparent conductive layer are parallel and spaced, the The transparent conductive layer has better mechanical properties, so that the above transparent conductive layer has better mechanical strength and toughness, so that the durability of the touch screen can be correspondingly improved, thereby improving the durability of the display device using the touch screen. Secondly, the plurality of carbon nanotube film films in the transparent conductive layer are arranged in parallel and spaced apart, so that the transparent conductive layer has a uniform resistance distribution and light transmittance, and each of the electrodes is transparently conductive therewith. One end of at least one carbon nanotube strip film structure in the layer is electrically connected, so that the position of the touch point can be more accurately determined by detecting the voltage change between the electrodes at the touch point, thereby facilitating the improvement of the touch screen and the use of the touch screen. The resolution and accuracy of the display device. [0043] 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, 096151296 Form No. A0101 Page 18 of 30 pages 1003254723-0 100 July 15th Shuttle Replacement Page 1.354921 All should be covered below Within the scope of the patent application. BRIEF DESCRIPTION OF THE DRAWINGS [0044] FIG. 1 is a schematic perspective view of a touch screen of an embodiment of the present technical solution. 2 is a schematic side view showing the structure of a touch screen according to an embodiment of the present technical solution. 3 is a scanning electron micrograph of a carbon nanotube film in a touch screen according to an embodiment of the present technical solution. 4 is a side view showing a structure of a display device according to an embodiment of the present technical solution. [Main component symbol description] [0048] Touch screen: 10 [0049] First electrode plate: 12 [0050] Second electrode plate: 14 [0051] Dot-shaped spacer: 16 [0052] Insulating layer: 18 [0053] A substrate: 120 [0054] First conductive layer: 122 [0055] First electrode: 124 [0056] Second substrate: 140 [0057] Second conductive layer: 142 [0058] Second electrode: 144 [0059] Transparent Protective film: 126 096151296 Form No. A0101 Page 19 / Total 30 pages 1003254723-0 1354921 July 15th, 2014 Shuttle replacement page [0060] Display device: 100 [0061] Display device: 20 [0062] Touch screen controller: 30 [0063] Central Processing Unit: 40 [0064] Display Device Controller: 50 [0065] Touch Object: 60 [0066] Pressing Place: 70 [0067] Shielding Layer: 22 [0068] Passivation Layer: 24 [0069] Clearance :26 096151296 Form No. A0101 Page 20 of 30 1003254723-0

Claims (1)

1354921 Correction and replacement page on July 15, 100. Patent application scope: 1. A touch screen comprising: a first electrode plate, the first electrode plate comprising a first substrate, a first conductive layer and at least two An electrode, the first conductive layer is disposed on a lower surface of the first substrate, and the at least two first electrodes are respectively disposed at two ends of the lower surface of the first electrode plate in the first direction and electrically connected to the first conductive layer And a second electrode plate, the second electrode plate is spaced apart from the first electrode plate, the second electrode plate includes a second substrate, a second conductive layer and at least two second electrodes, the second conductive The layer is disposed on the upper surface of the second substrate, and the at least two second electrodes are respectively disposed at two ends of the upper surface of the second electrode plate in the second direction and are electrically connected to the second conductive layer; At least one of the first conductive layer and the second conductive layer comprises a plurality of carbon nanotube film structures arranged in parallel and spaced apart, and each of the carbon nanotube film structures is composed of a plurality of carbon nanotubes Composition A plurality of electrodes are respectively disposed on opposite ends of the electrode plate having a plurality of carbon nanotube strip-shaped film structures, and two ends of each of the carbon nanotube film-like film structures are electrically connected to two opposite electrodes, respectively, and Each electrode is electrically coupled to one end of at least one carbon nanotube ribbon film structure. The touch panel of claim 1, wherein each of the two electrodes disposed at opposite ends of the electrode plate is provided with a plurality of carbon nanotube strip film structures. 3. The touch screen of claim 1, wherein the carbon nanotube film structure is at least one layer of carbon nanotube film, and the carbon nanotube film is composed of a plurality of aligned carbon nanotubes. . 096151296 Form No. A0101, Page 21 of 30, 1003254723-0. The touch screen of claim 3, wherein the carbon nanotube film structure overlaps. a multi-layered carbon nanotube film, each nanometer carbon film is composed of a plurality of aligned carbon nanotubes, and the carbon nanotubes in the adjacent two layers of carbon nanotube film are arranged in the same direction or along different directions The directional arrangement of the touch panel of claim 4, wherein the carbon nanotube film further comprises a plurality of end-to-end connected carbon nanotube bundle segments, each of the carbon nanotube bundle segments having equal lengths and each The carbon nanotube bundle segment is composed of a plurality of mutually parallel carbon nanotube bundles, and the ends of the plurality of carbon nanotube bundle segments are connected to each other by a van der Waals force. The touch screen of claim 5, wherein the adjacent carbon nanotube bundles are closely coupled by van der Waals force, and each nano carbon nanotube bundle is composed of a plurality of nanometers of equal length and parallel arrangement. Carbon tube. The touch panel of claim 6, wherein the nanocarbon is one or more of a single-walled carbon nanotube, a double-walled carbon nanotube, and a multi-walled carbon nanotube. The touch screen of claim 7, wherein the single-walled carbon nanotube has a diameter of 0.5 nm to 5 nanometers, and the double-walled carbon carbon has a diameter of 1.0 nanometer. Meters ~ 50 nm, the straight-twist of the multi-walled carbon nanotubes is 1.5 nm ~ 50 nm. The carbon nano-carbon carbon 1003254723-0 The touch screen of claim 1, wherein the width of the tube-like film structure is! Mm ~ 1〇 cm. The touch screen of claim 1, wherein the tube-like film structure has a thickness of 0.5 nm to 1 μm. The touch screen of claim 1, wherein the spacing between the strip-like film structures is 5 nm to 1 mm. The touch screen of claim 1, wherein the at least two first electrodes are respectively disposed in the first, respectively, in the first embodiment of the present invention. a lower surface of the conductive layer is electrically connected to the first conductive layer at both ends of the first direction, and the at least two second electrodes are respectively disposed at both ends of the upper surface of the second conductive layer in the second direction and Electrically connected to the second conductive layer. The touch screen of claim 1, wherein the first conductive layer and the second conductive layer each comprise a plurality of carbon nanotube strip film structures arranged in parallel and spaced apart, and the first conductive The carbon nanotube film structure in the layer is disposed to intersect with the carbon nanotube film structure in the second conductive layer. The touch panel of claim 13, wherein the carbon nanotube film structure in the first conductive layer is parallel and spaced apart along the first direction, and the second conductive layer The carbon nanotube film-like film structures are arranged in parallel and spaced apart along the second direction. The touch screen of claim 14, wherein the first direction is perpendicular to the second direction. The touch panel of claim 1, wherein the touch screen further comprises an insulating layer disposed on a periphery of the second electrode plate surface, the first electrode plate being disposed on the insulating layer. The touch panel of claim 16, wherein the touch screen further comprises a plurality of transparent dot spacers disposed between the first electrode plate and the second electrode plate. The touch panel of claim 17, wherein the plurality of dot spacers are disposed between the first conductive layer and the second conductive layer. The touch screen of claim 1, wherein the touch screen further comprises a shielding layer disposed on a lower surface of the second substrate of the touch screen, the shielding layer being an indium tin oxide film, 锑Tin oxide film 096151296 Form No. A0101 Page 23 / Total 30 pages 1003254723-0 1354921 On July 15, 100, the nuclear replacement of π, nickel gold film, silver film or carbon nanotube film. The touch screen of claim 1, wherein the first base material is polyester, and the second base material is glass, quartz, diamond or plastic. 21 The touch screen of the present invention, further comprising a transparent protective film disposed on the surface of the first electrode plate, the material of the transparent protective film being tantalum nitride, yttrium oxide, and styrene Alkene, polyester, acrylic or polyethylene terephthalate. A display device comprising: a touch screen comprising a first electrode plate and a second electrode plate, the first electrode plate comprising a first substrate, a first conductive layer and at least two first electrodes The first conductive layer is disposed on a lower surface of the first substrate, and the at least two first electrodes are respectively disposed at two ends of the lower surface of the first electrode plate in the first direction and electrically connected to the first conductive layer; The second electrode plate is spaced apart from the first electrode plate. The second electrode plate includes a second substrate, a second conductive layer and at least two second electrodes. The second conductive layer is disposed on the second substrate. a surface, the at least two second electrodes are respectively disposed at two ends of the upper surface of the second electrode plate in the second direction and electrically connected to the second conductive layer: and a display device, the display device is directly opposite to the touch screen a second electrode plate arrangement; the improvement is that at least one of the first conductive layer and the second conductive layer comprises a plurality of parallel carbon nanotube strip film structures arranged in parallel and spaced apart, each of the nanometers Carbon tube The membrane structure is composed of a plurality of carbon nanotubes, and the two ends of the electrode plate provided with the plurality of carbon nanotube strip membrane structures are respectively provided with a plurality of electrodes, and the two ends of each of the carbon nanotube strip membrane structures 096151296 Form No. 1010101 Page 24/Total 30 Page 1003254723-0 1354921 Correction of the replacement page with two opposite electrode electrical connections #, and each of the electrodes and at least one carbon nanotube strip One end of the membrane structure is electrically connected. The display device of claim 22, 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 controller is connected to each other through a circuit, the touch screen controller is electrically connected to the touch screen, and the display device controller is electrically connected to the display device. The display device of claim 22, wherein the display device is one of a liquid crystal display, a field emission display, a plasma display, an electroluminescence display, a vacuum fluorescent display, and a cathode ray tube display. The display device of claim 22, wherein the touch screen is spaced apart from the display device or the touch screen is integrated on the display device. The display device of claim 22, wherein the display device further comprises a passivation layer disposed on a surface of the touch screen away from the second substrate, the passivation layer being made of tantalum nitride Or bismuth oxide. A touch screen comprising: a first electrode plate, the first electrode plate comprising a first substrate, a first conductive layer and at least two first electrodes, wherein the first conductive layer is disposed on the first substrate a lower surface, the at least two first electrodes are respectively disposed at both ends of the lower surface of the first electrode plate in the first direction and electrically connected to the first conductive layer; and a second electrode plate, the second electrode plate and The first electrode plates are spaced apart, and the second electrode plate comprises a second substrate, a second conductive layer and at least two 096151296 Form No. A0101 Page 25 / Total 30 Page 1003254723-0 1354921 Correction of July 15, 100 Substituting the ancient electrode to the second electrode, the second conductive layer is disposed on the upper surface of the second substrate, and the at least two second electrodes are respectively disposed on the upper surface of the second electrode plate at both ends in the second direction and The two conductive layers are electrically connected; the improvement is that at least one of the first conductive layer and the second conductive layer comprises a plurality of parallel carbon nanotube strip film structures arranged in parallel and spaced apart, wherein the plurality of nano tubes are provided with a plurality of layers Carbon tube ribbon film The two ends of the electrode plate are respectively provided with a plurality of electrodes, and two ends of each of the carbon nanotube film-like film structures are respectively electrically connected to two opposite electrodes, and each of the electrodes and at least one nanocarbon One end of the strip film structure is electrically connected. 096151296 Form No. A0101 Page 26 of 30 1003254723-0