TWI377407B - Desktop computer - Google Patents

Description

Γ377407 101.05.07.07. Replacement page 6. Description of the Invention: [Technical Field of the Invention] [0001] The present invention relates to a desktop computer, and more particularly to a touch type desktop computer. [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 the electronic device - by visually confirming the display content of the display device located on the back surface of the touch panel by the touch panel, presses the touch panel to operate by a finger or a pen. Thereby, various functions of the electronic device can be operated.

[0003] The display screen of a desktop computer in the prior art may be a liquid crystal display. The surface of the liquid crystal display is provided with at least one touch screen, which can be used as a signal input device instead of a mouse and a keyboard for inputting signals, thereby controlling opening and closing of various functions of the desktop computer, and text Input. The touch screen can be generally divided into four types according to the working principle and the transmission medium, and is respectively a resistive type, a capacitive sensing type, an infrared type, and a surface acoustic wave type. Resistive touch screens and capacitive touch screens are widely used in desktop computers due to their high resolution, high sensitivity and durability. [0004] However, the capacitive and resistive touch screens of the prior art generally include an indium tin oxide layer (ITO layer) as a transparent conductive layer, which is prepared by ion beam or laser plating, Kazuhiro Noda et al. Document Production of Transparent Conductive Films Single No. A0101 Page 3 of 30 1013171784-0 1377407 May 07, 2011 Shuttle Replacement Page with Inserted Si〇2 Anchor Layer, and Application to a Resistive Touch Panel (

Electronics and Communications in Japan,

A touch panel using an ITO/Si〇2/PET layer is described in Part 2, Vol. 84, P39-45 (2001). The ITO layer is used in the preparation process, requires a high vacuum environment and needs to be heated to 200 to 300 ° C. In view of this, the preparation cost of the ΙΤ 0 layer is high. In addition, the ΙΤ0 layer in the prior art has disadvantages such as insufficient mechanical properties, difficulty in bending, and uneven distribution of resistance as a transparent conductive layer. In addition, ΙΤ0 will gradually decrease in transparency in humid air. As a result, the previous touch screen and the ® desktop computer using the touch screen have shortcomings such as low durability, low sensitivity, linearity and poor accuracy. In view of the above, it is necessary to provide a desktop computer using a touch screen, which has the advantages of good durability, high sensitivity, linearity, and high accuracy. [Summary of the Invention]

[0006] A desktop computer, comprising: a computer host; a display connected to the computer host through a data line, the display includes a display screen; and a touch screen disposed on the display screen surface, The touch screen includes at least one transparent conductive layer, wherein the transparent conductive layer in the touch screen is a carbon nanotube structure. [0007] Compared with the prior art, the desktop computer using the carbon nanotube structure as the transparent conductive layer of the touch screen provided by the embodiments of the present technical solution has the following advantages: First, since the touch screen using the carbon nanotube can be directly input and operated Command and text data, which can replace the traditional keyboard and mouse input, etc. 09713810^^^^ A〇101 Page 4 of 30 pages 1013171784-0 Γ377407 101.05月07日修正 replacement page

The device simplifies the structure of the desktop computer. Secondly, since the carbon nanotube has good transparency under humid conditions, the carbon nanotube structure is used as the transparent conductive layer of the touch screen, so that the touch screen has better transparency, thereby facilitating the use of the touch screen. Desktop resolution. Third, since the carbon nanotubes have excellent mechanical properties, the carbon nanotube structure composed of carbon nanotubes has good toughness and mechanical strength, so the carbon nanotube structure is used as a transparent conductive layer of the touch screen. The durability of the touch screen can be correspondingly increased, thereby improving the durability of the desktop computer using the touch screen. Fourth, since the carbon nanotubes have excellent electrical conductivity, the carbon nanotube structure composed of carbon nanotubes has a uniform resistance distribution, and thus, the above-mentioned carbon nanotube structure is used as a transparent conductive layer, which can be correspondingly Improve the resolution and accuracy of the touch screen, thereby increasing the resolution and accuracy of the desktop computer to which the touch screen is applied. [Embodiment] A desktop computer provided by an embodiment of the present technical solution will be described in detail below with reference to the accompanying drawings.

Referring to FIG. 1, a first embodiment of the present invention provides a desktop computer 100, which includes a computer host 102, a display 104, and a touch screen 10. The display 104 is coupled to the host computer 102 via a data line 108. The display 104 includes a display 106. The touch screen 10 is disposed on a surface of the display screen 106. [0010] The computer host 102 includes components such as a main board, a central processing unit (CPU), a memory, and a hard disk. The motherboard has system bus, data bus, control bus, various slots, interfaces and other components. CPU, memory, graphics card, sound card, network card, video card, etc. are installed on the motherboard, installed in the computer host 102 hard 09713810^^'^ A0101 page 5 / total 30 pages 1013171784-0 1377407 101 years 05J 07 correction replacement page

The components such as the disk and the power supply are connected to the main board through a cable. The computer host 102 further includes a touch screen control component and a display control component. The touch screen control element and display control element are electrically coupled to the central processor. The central processor receives touch location data output by the touch screen control element, processes the touch location data, transmits the processed data to a display control component, and controls display of the display 104 by the display control component. Further, the chassis button, the prompt light, the power switch, the hard disk indicator, the power light, and the like can be inserted into the corresponding positions of the main board. In addition, two speakers (not shown) and a disk drive device (not shown) may be disposed on the side of the host computer 102. In addition, at least one input/output port (not shown) is provided on the side of the host computer 102 of the desktop computer 100 for connecting the display screen 106 and the touch screen 10 to the host computer 102. In the embodiment of the technical solution, the computer host 102 includes at least two input/output ports, and the display 104 and the touch screen 10 are respectively connected to the input/output port through a data line 108. In addition, the computer host 102 can also be disposed integrally with the display 104. At this time, the display 104 can be disposed on one side of the host computer 102. .

[0011] The display 104 is one of a liquid crystal display, a field emission display, a plasma display, an electroluminescence display, and a vacuum fluorescent display. The display 104 is used to display data and images output by the host computer 102. Preferably, the display 104 is a liquid crystal display. The display 104 is used to display data and images output by the host computer 102. [0012] The touch screen 10 has a function of inputting a signal, and the user can input a signal to the computer by touch or pressing on the touch screen 10 with a finger or a touch pen or the like. _810 Production Order No. A0101 Page 6 / Total 30 Page 1013171784-0 1377407 Host 1G2. Specifically, the area of the screen 10 may be the same as the area of the display ^~. It can be understood that when the area of the touch screen 1 is smaller than the area of the display screen 106, a plurality of touch screens can be disposed on the display screen 〇6 to facilitate different functions at the same time. It can be understood that the signals input by the touch screen 1 can be command signals and text signals, thereby replacing the mouse and keyboard used in the prior art desktop computers. In addition, for diversified input information, an on-screen keyboard (not shown) may be displayed on the surface of the display screen 106, so that the text information can be directly input by touching the touch screen. In addition, in order to facilitate the user to better use the desktop computer 100, the desktop computer 100 may further include an external mouse and/or keyboard (pictured), the mouse and/or keyboard may be connected to the computer through a cable The input/output ports of 102 are connected. [0013] The touch screen 1〇 may be disposed at a predetermined distance from the display screen 1〇6, or may be integrated with the display screen 106. Specifically, when the touch screen 10 is integrated with the display screen 106, the touch screen 1A may be directly disposed on the surface of the display screen 106 by an adhesive or the touch screen 10 may share a substrate arrangement with the display screen 106. The touch screen 1〇 has a function of inputting a signal, and the user can input the is number to the computer host 1〇2 by touching or pressing the finger on the touch screen 1〇 with a finger or a touch pen. In the embodiment of the technical solution, the touch screen 10 and the display screen 1 6 share a substrate integrated arrangement. The touch screen 10 can be a resistive or capacitive touch screen. 2 and FIG. 3, a first embodiment of the present invention provides a resistive touch screen 10 including a first electrode plate 12, a second electrode plate η, and a first electrode plate 12 disposed thereon. A plurality of transparent dot spacers 16 between the second electrode plates 14 » 1013171784-0 09713810 #单号 A0101 1377407 May 07, 2010 垵正换页[0015] The first electrode plate of the resistive touch screen 10 12 includes a first substrate 12(), a first conductive layer 122, and two first electrodes 124. The first substrate 120 has a planar structure and has a first surface β. The first conductive layer Kg and the two first electrodes 124 are disposed on the first surface of the first substrate 120. The two first electrodes 124 are respectively disposed at both ends of the first conductive layer 122 in the first direction and are electrically connected to the first conductive layer 122. The first direction is a coordinate direction. The second electrode plate 14 of the touch screen includes a second substrate 14A, a second conductive layer 142 and two second electrodes 144. The second substrate 140 has a planar structure and has a second surface. The second surface of the second substrate "o" is disposed opposite to the first surface of the first substrate 120. The second conductive layer 142 and the two second electrodes 144 are both disposed on the second surface β of the second substrate 140. The second electrodes 144 are respectively disposed at two ends of the second conductive layer 142 in the second direction and are electrically connected to the second conductive layer 142. The first direction is a Υ coordinate direction, and the χ coordinate direction is perpendicular to the ¥ coordinate direction, That is, the two first electrodes 124 are orthogonally disposed with the two second electrodes 144. [0016] wherein the first substrate 120 is transparent and has a certain degree of softness, the film or the substrate 14G is a transparent substrate. The material of the second substrate 14() may be selected from glass, a rigid material such as 5 inches, diamond, or a flexible material such as plastic or resin. The second substrate "0" mainly serves as a support. The material of the first electrode 124 and the second electrode 144 may be metal, nanocarbon film or other conductive material. In the present embodiment, the first substrate 120 is a polyester film, and the second substrate 14 is a glass substrate; the first electrode m and the second electrode 144 are carbon nanotube films, and the carbon nanotube film The width is 1 micron to 5 mm. [0017] Progressively the second electrode plate 14 is away from the periphery of the surface of the display screen 09713810^Single number A0101 Page 8 of 30 1013171784-0 Γ377407 Correction replacement page on May 07, 101

An insulating layer 18 is provided. 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 on the second conductive layer 142 of the second electrode plate 14, 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 100 μm. Both the insulating layer 18 and the dot spacer 16 may be made of an insulating transparent resin or other insulating transparent material. The provision of the insulating layer 18 and the dot spacers 16 allows the first electrode plate 14 to be electrically insulated from the second electrode plate 12. It can be understood that when the resistive touch screen 10 is small in size, the dot spacer 16 is of an alternative structure, and it is only necessary to ensure that the first electrode plate 14 is electrically insulated from the second electrode plate 12. [0018] In addition, a transparent protective film 126 may be disposed on the surface of the first electrode plate 12 away from the second electrode plate 14. The transparent protective film 126 may be directly bonded to the surface of the first substrate 120 away from the display screen 106 by a bonding agent, or may be pressed together with the first electrode plate by a hot pressing method. The transparent protective film 126 may be a surface-hardened, smooth scratch-resistant plastic layer or a resin layer which may be composed of styrene-butadiene (BCB), phthalic acid acrylate (PMMA), polyester, and acrylic acid. A material such as a resin is formed. In this embodiment, the material for forming the transparent protective film 126 is polyethylene terephthalate (PET) for protecting the first electrode plate 12 to improve durability. The transparent protective film 126 can be used to provide additional functions such as glare reduction or reflection reduction after special processing. [0019] at least one of the first conductive layer 122 and the second conductive layer 142 includes a carbon nanotube structure, the carbon nanotube structure includes a plurality of uniformly distributed carbon nanotubes, and the above Nano carbon tube disordered or ordered row 09713810# Single weave A0101 Page 9 / Total 30 pages 1013171784-0 1377407 t 101 years. May 07 shuttle is replacing the page column. The disordered arrangement of the carbon nanotubes here is not fixed, that is, the number of carbon nanotubes arranged in all directions is substantially equal; the order means that at least most of the carbon nanotubes have a certain regular arrangement direction, such as a basic fixed Directionally preferred orientation or preferred orientation along several fixed directions. The disordered array of carbon nanotubes are intertwined by Van der Waals forces, attract each other and are parallel to the surface of the carbon nanotube structure. The ordered array of carbon nanotubes are arranged in a preferred orientation in one direction or in a plurality of directions. [0020] Carbon nanotube structures of different structures can be prepared by different methods. The ordered carbon nanotube structure formed by the ordered carbon nanotubes may be composed of an ordered carbon nanotube film obtained by directly pulling up a carbon nanotube array. The carbon nanotubes in the ordered carbon nanotube film are connected end to end and are preferentially aligned along the stretching direction, and the adjacent carbon nanotubes are tightly bonded by van der Waals force. The ordered carbon nanotube film further comprises a plurality of end-to-end carbon nanotube segments, each of the carbon nanotube segments having substantially equal lengths and each of the carbon nanotube segments being composed of a plurality of mutually parallel nanometers The carbon tube is formed, and the carbon nanotube segments are connected to each other by Van der Waals force. The thickness of the carbon nanotube film is from 0.5 nm to 100 μm, and the width is from 0.01 cm to 10 cm φ m. The ordered carbon nanotube structure may further comprise at least two ordered carbon nanotube membranes arranged in an overlapping manner, wherein the carbon nanotubes in the adjacent two ordered carbon nanotube membranes have an intersection angle α, And 0 degrees α 90 degrees. The ordered carbon nanotube structure formed by the ordered arrangement of carbon nanotubes can also be obtained by rolling an array of carbon nanotubes. The carbon nanotubes in the ordered carbon nanotube structure obtained by the compacting of a carbon nanotube array are arranged in a preferred orientation in one direction or in a plurality of directions. The disordered carbon nanotube structure formed by the disordered arrangement of carbon nanotubes can be obtained by flocculation treatment of a carbon nanotube raw material to obtain 09713810^^^^* Α〇101 page 10/total 30 pages 1013171784- 0 1377407 101 years. 05 months 0 gt; day. The carbon nanotubes in the disordered carbon nanotube structure are intertwined, attracted and parallel to the surface of the carbon nanotube structure by the van der Waals force. [0021] The carbon nanotubes in the carbon nanotube structure include 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 〇. 5 nm to 5 〇 nanometer, and the diameter of the double-walled carbon nanotube is 1 nm to 50 nm. The diameter of the multi-walled carbon nanotube is 丨5. Nano ~50 nm. [0022] In the embodiment of the technical solution, the first conductive layer 122 and the second conductive layer 142 each include a carbon nanotube structure, and the carbon nanotube structure is an ordered carbon nanotube film. Referring to FIG. 4, the carbon nanotubes in the carbon nanotube film are connected end to end and arranged in a preferred orientation along the stretching direction. The carbon nanotube structure is a multi-layered ordered carbon nanotube film which is arranged in an overlapping manner, and the carbon nanotubes in each layer of the carbon nanotube film are arranged in a preferred orientation in the same direction. The carbon nanotube film further includes a plurality of end-to-end carbon nanotube segments, each of the carbon nanotube segments having substantially equal lengths and each of the carbon nanotube segments being composed of a plurality of mutually parallel carbon nanotubes In the composition, the carbon nanotube segments are connected to each other by Van der Valli. Specifically, the plurality of layers of the carbon nanotube film in the first conductive layer 122 are overlapped in the first direction, and the plurality of layers of the carbon nanotube film in the second conductive layer 142 are overlapped in the second direction. The carbon nanotube film has a thickness of 0.5 nm to 1 μm and a width of 〇〇1 cm to 10 cm. [0023] When the touch screen 10 is integrated with the display screen 〇6, in order to further reduce The electromagnetic interference generated by the display device avoids the error of the k number emitted from the touch screen 10, and a shielding layer 11th/30 pages 1013171784-0 (not shown) may be disposed on the lower surface of the touch screen. The shielding layer may be made of indium tin oxide (ΙΤ0), antimony tin oxide 09713810^^^^* A0101 帛11 pages/total 30 pages 1377407 [0024] [0025] [0026] [0027] Γ101^> May 07 It is formed by a conductive material such as a positive replacement compound (AT〇) or a carbon nanotube film. The arrangement of the carbon nanotubes in the nanocarbon Ί* film as the shielding layer is not limited to directional alignment or other (four) modes. In the present embodiment, the shielding layer is made of a carbon carbon film in which the carbon nanotubes 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. Further, in order to ensure that the display screen 1 6 is not damaged due to excessive external force, a passivation layer (not shown) may be disposed between the display screen 1 6 and the touch panel 1 . The passivation layer may be formed of a material such as tantalum nitride or hafnium oxide. The specific process of displaying the desktop computer 100 of the present embodiment through the touch of the resistive touch panel 10 will be specifically described below. Referring to FIG. 5, a specific process of displaying the desktop computer 100 of the present embodiment through the touch of the resistive touch screen 1 以下 will be specifically described below. In use, a voltage of 5 V is applied between the first electrode plates 12 of the resistive touch panel 10 and the first electrode plates 14, respectively. The user visually recognizes the display of the display screen 1 设置 6 set under the touch screen 10, and presses the resistive touch panel 1 〇 the first electrode plate 12 by the touch object 180 such as a finger or a pen. The first substrate 120 in the first electrode plate 12 is bent such that the first conductive layer 122 of the pressing portion 182 is in contact with the second conductive layer 142 of the second electrode plate 14 to form a conduction. The touch screen control component 150 of the computer host 1 2 measures 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, and performs accurate calculation to convert it into a contact. Coordinates, and input the remote contact coordinate command data to the computer 09713810^^^^ A〇101 Page 12 of 30 pages 1013171784-0 Γ377407 101.05.07.07 The shuttle is replacing the central processor in the 100 host 102 160. Thereafter, the central processing unit 160 processes the received data; then, the processed data is transmitted to the display control component 170 of the display 106, so that the display 106 can display correspondingly according to the data input by the user. . [0028] Referring to FIG. 6 and FIG. 7 together, a desktop computer 200 according to a second embodiment of the present invention includes a display 204, a computer host 202, and a capacitive touch screen 20. The display 204 includes a display 206. [0029] The desktop computer 200 is substantially similar to the desktop electric ray 100 structure provided by the first embodiment of the present technical solution. The touch screen 20 is a capacitive touch screen 20. The touch screen 20 further includes a substrate 22, a transparent conductive layer 24, at least two electrodes 28, and a transparent protective film 26. The substrate 22 is placed adjacent to the display 204. 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 substrate 22, the first surface 221 is a surface away from the display screen; the at least two electrodes 28 are respectively disposed at or at each corner of the transparent conductive layer 24. And forming an electrical connection with the transparent conductive layer 24 for forming an equipotential surface on the transparent conductive layer 24. The transparent protective film 26 can be directly disposed on the transparent conductive layer 24 and the electrode 28. [0030] 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 resistance network on the transparent conductive layer 24 described above. In the present embodiment, four strip electrodes 28 are spaced apart from each other on four sides of the same surface of the above-mentioned 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, and 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 1013171784-0 09713810# single number Α〇 1 (Π page 13 / total 30 pages 1377407 101 May 07, according to the replacement page 28 is disposed on the transparent conductive layer 24 away from the base 22 [0031] 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. [0032] The substrate 22 is a curved surface. The base 22 is formed of a hard material such as glass, quartz, diamond or plastic or a flexible material. The base 22 mainly serves as a selective function. [0033] The transparent conductive layer 24 covers the The carbon nanotube structure, the carbon nanotube structure comprises a plurality of uniformly distributed carbon nanotubes, and the above-mentioned carbon nanotubes are randomly arranged or orderedly arranged. Specifically, the carbon nanotube structure can be In the first embodiment, the carbon nanotubes in the first conductive layer I22 or the second conductive layer 142 have the same structure. [0035] The village of the four electrodes 28 is metal, nano carbon film or other The conductive material 'is only required to ensure conductivity. In this embodiment, the four batteries The pole 28 is a strip electrode 28 composed of a low-resistance conductive metal plating such as silver or copper or a metal foil. In order to extend the service life and limit of the transparent conductive layer 24, the contact point and the transparent conductive layer are engaged. The capacitance between the 24, the package 'can be disposed on the surface of the transparent conductive layer 24 and the electrode 28 away from the substrate 22, a transparent transparent protective film 26' transparent protective film 26 can be made of tantalum nitride, yttrium

It is formed by dilute (BCB), polyester film or acrylic resin. The transparent protective film 26 has a certain hardness and protects the transparent conductive layer 24. It can be understood that it can also be treated by a special jade, so that the transparent protective film 26 has the following functions, such as reducing glare, reducing reflection, and the like. [0036] In the present embodiment, 10113171784-0 1377407 is disposed on the transparent conductive layer 24 of the 09713810# single number A0101 ==. The film is used as the transparent protective film 26 on the 07.05. The hardness of the transparent protective film 26 can reach 7H (H is the depth at which the indentation remains under the initial test force after the main test force is removed in the Rockwell hardness test). It is understood that the hardness and thickness of the transparent protective film 26 can be selected as needed. The transparent protective film 26 can be directly bonded to the surface of the transparent conductive layer 24 away from the display screen 204 by a bonding agent. [0037] Furthermore, in order to reduce the electromagnetic interference generated by the display device and to avoid errors in the signal emitted from the touch screen 20, a shielding layer 230 may also be disposed on the second surface 22 of the substrate 22. The shield layer 230 may be formed of a transparent conductive material such as an indium tin oxide (ITO) film, a tantalum oxide (yttrium) film, or a carbon nanotube film. The carbon nanotube membrane can be oriented or otherwise structured of carbon nanotube membranes. In this embodiment, the carbon nanotube film comprises a plurality of carbon nanotubes, and the plurality of carbon nanotubes are aligned in the carbon nanotube film, and the specific structure thereof and the transparent conductive layer 24 the same. The carbon nanotube film acts as an electrical grounding point and acts as a shield, thereby enabling the touch screen 20 to operate in an interference-free environment. Further, in order to prevent the display 204 from being damaged due to excessive external force, a passivation layer 232 may be disposed between the display 204 and the shielding layer 230. The passivation layer 232 may be formed of a material such as tantalum nitride or hafnium oxide. Referring to FIG. 8, a specific process of displaying the desktop computer 200 according to the second embodiment of the present technical solution through the touch of the touch screen 20 will be specifically described. [0039] In use, a predetermined application is applied to the transparent conductive layer 24. Voltage. 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 on the back of the touch screen 20, 09713810, the order number Α 0101, the 15th page, the total 30 pages, the 1013171784-0 1377407, the 101st, the 07th, the 07th, the silver, the replacement page, the display of the display screen 204, while passing the finger or the pen, etc. When the touch object (not shown) presses or approaches the transparent protective film 26 of the touch screen 20 to operate, a coupling capacitance is formed between the touch object and the transparent conductive layer 24. 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 of 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. The touch screen control element 250 in the desktop computer 200 accurately calculates the ratio of the four currents. , to get the location of the touch point. Thereafter, the touch screen control component 250 transmits the digitized touch location data to the central processor 260 in the computer host 202; thereafter, the central processor 260 processes the data received by β; and then transmits the processed data through the output port. Display control element 270 is provided such that display 206 can be displayed in accordance with data accepted by display control element 270. [0040] The desktop computer provided by the embodiment of the present technical solution adopts a touch screen containing a carbon nanotube, and has the following advantages: First, since the touch screen adopting a carbon nanotube can directly input an operation command and text data, thereby replacing the conventional Input devices such as keyboards and mice simplify the structure of the desktop computer. Secondly, since the carbon nanotube has good transparency under humid conditions, the carbon nanotube structure is used as the transparent conductive layer of the touch screen, so that the touch screen has better transparency, thereby facilitating the use of the touch screen. Desktop resolution. Third, since the carbon nanotubes have excellent mechanical properties, the carbon nanotube structure composed of carbon nanotubes has good toughness and mechanical strength, so the carbon nanotube structure is used as a transparent conductive layer of the touch screen. The durability of the touch screen can be correspondingly increased, thereby improving the durability of the desktop computer using the touch screen. Fourth, the production unit number Α 0101 page 16 / total 30 pages 1013171784-0 1377407 101 May 07 nuclear replacement page due to the excellent electrical conductivity of the carbon nanotubes, the nano carbon nanotubes The carbon tube structure has a uniform resistance distribution. Therefore, using the above-mentioned carbon nanotube structure as a transparent conductive layer can correspondingly improve the resolution and accuracy of the touch screen, thereby improving the resolution and accuracy of the desktop computer using the touch screen. degree.

[0041] 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 [0042] FIG. 1 is a schematic structural view of a desktop computer according to a first embodiment of the present technical solution. 2 is a schematic perspective structural view of a touch screen in a desktop computer according to a first embodiment of the present technical solution. 3 is a cross-sectional structural view of a touch screen in a desktop computer according to a first embodiment of the present technical solution.

4 is a scanning electron micrograph of a carbon nanotube film in a desktop computer according to a first embodiment of the present technical solution. 5 is a schematic diagram showing the working principle of a desktop computer according to a first embodiment of the present technical solution. [0047] FIG. 6 is a schematic perspective view of a touch screen in a desktop computer according to a second embodiment of the present technical solution. 7 is a second embodiment of the desktop computer shown in FIG. 6 in the touch screen along the 097 body 0# single number A 〇 101 page 17 / a total of 30 pages 1013171784-0 1377407 101 years. Page VII-VII cross-sectional view. 8 is a schematic diagram showing the working principle of a desktop computer according to a second embodiment of the present technical solution. [0010] [Main component symbol description] Touch screen: 10, 20 [0051] Desktop computer: 100, 200 [0052] Computer host: 102, 202 [0053] Display: 104, 204 [0054] Display: 106, 206 [ 0055] Data line: 108 [0056] First electrode plate: 12 [0057] First substrate: 120 [0058] First conductive layer: 122 [0059] First electrode: 124 [0060] Second electrode plate: 14 [ 0061] Second substrate: 140 [0062] Second conductive layer: 142 [0063] Second electrode: 144 [0064] Touch screen control element: 150, 250 [0065] Point spacer: 16 _810 Production order number A 〇 101 Page 18 of 30

1013171784-0 1377407 Modified on May 07, 101 [0066] Central Processing Unit: 160, 260 [0067] Display Control Element: 170, 270 [0068] Insulation: 18 [0069] Touch: 180 [0070] Pressing position: 182 [0071] Base: 22 [0072] First surface: 2 21

[0073] Second surface: 222 [0074] Transparent conductive layer: 24 [0075] Transparent protective film: 2 6,126 [0076] Electrode: 28

09713810^^ A0101 Page 19 of 30 1013171784-0

Claims (1)

1377407 101.05月月0> 日梭正换页7, the scope of application for patents: 1. A desktop computer comprising: a computer main unit; a display, the display is connected to the computer host through a data line, the display includes a display screen; and a capacitive touch screen disposed on the display surface, the capacitive touch screen comprising: a substrate disposed adjacent to the display screen and having a first surface remote from the display screen; a transparent conductive layer, the transparent conductive layer is disposed on the first surface of the substrate; and at least two electrodes, the at least two electrodes are spaced apart from each other and electrically connected to the transparent conductive layer; The transparent conductive layer in the capacitive touch screen includes a carbon nanotube structure. 2. The desktop computer of claim 1, wherein the at least two electrodes are spaced apart from each other by a conductive silver paste on a surface of the transparent conductive layer, and the electrode comprises a carbon nanotube film or a conductive metal. Floor. A desktop computer comprising: a computer host; a display, the display being connected to the host computer via a data line, the display comprising a display screen; and a resistive touch screen, the resistive touch screen being disposed on the a first surface of the display screen, the first electrode plate includes a first substrate, two first electrodes and a first transparent conductive layer, the first substrate has a first surface. The first transparent conductive layer is disposed on the first surface of the first substrate, and the two first electrodes are disposed at two ends of the first conductive layer along the first direction and electrically connected to the first conductive layer; a second electrode Board, single number A 〇 101 page 20 / total 30 pages 1013171784-0 05 〇 曰倐 曰倐 替换 replacement of the second electrode plate is spaced from the first electrode plate, the second electrode plate includes - second substrate a second transparent conductive layer and two second electrodes disposed adjacent to the display screen and having a second surface remote from the display screen, the second surface of the second substrate being opposite to the first surface of the first substrate The second transparent conductive layer is disposed on the second surface of the second substrate; the improvement is that the first conductive layer is a carbon nanotube structure, and the carbon nanotubes and the The rice rabbit tubes are oriented in a first direction, and the second transparent conductive layer comprises a carbon nanotube structure, the carbon nanotubes in the carbon nanotube structure are oriented in a second direction, and the second direction The two second electrodes are disposed at both ends of the second conductive layer in the second direction and are electrically connected to the second conductive layer perpendicular to the first direction. The desktop computer of claim 3, wherein the resistive touch screen further comprises an insulating layer disposed on a periphery of the surface of the second electrode plate away from the display screen, the first electrode plate being disposed at the insulation The layer is spaced apart from the first electrode plate. The desktop computer of claim 4, wherein the resistive touch screen further comprises a plurality of dot spacers disposed between the first electrode plate and the second electrode plate, the dot spacers A resin that is insulated and transparent to the insulating layer material. The desktop computer of claim 1 or 3, wherein the carbon nanotube structure comprises a plurality of uniformly distributed carbon nanotubes, the carbon nanotubes are disorderly arranged or have Ordering. The desktop computer of claim 6, wherein the disordered carbon nanotubes are intertwined by van der Waals force or mutually attracted by van der Waals forces and parallel to the carbon nanotubes. The surface of the structure. 8. The desktop computer according to claim 6, wherein the ordered 1013171784-0 09713810# single number A01〇l page 21/total 30 page 1377407 101 May 07 nuclear replacement page arrangement The carbon nanotubes are arranged in a preferred orientation in one direction or in multiple directions. 9. The desktop computer of claim 8, wherein the carbon nanotube structure comprises at least one ordered carbon nanotube film, and the ordered carbon nanotube film is directly stretched by one nanometer. Carbon tube arrays are obtained. 10. The desktop computer of claim 9, wherein the carbon nanotubes in the ordered carbon nanotube film are connected end to end and arranged in a preferred orientation, and adjacent carbon nanotubes pass between each other. Van der Valli is closely integrated. 11. The desktop computer of claim 8, wherein the carbon nanotube structure comprises at least two layers of ordered carbon nanotube membranes arranged in an overlapping manner, adjacent two layers of ordered carbon nanotubes The carbon nanotubes in the membrane have an intersection angle α, ® and α is greater than or equal to 0 degrees and less than or equal to 90 degrees. The desktop computer of claim 1 or 3, wherein the touch screen is spaced from the display screen or the touch screen is integrated with the display screen. 13. The desktop computer of claim 12, wherein the touch screen is disposed directly on a display screen surface by a bonding agent or the touch screen is disposed in common with the display screen. 14. The desktop computer of claim 1 or 3, wherein the touch screen further comprises a shielding layer and a purification layer, the shielding layer and the passivation layer being disposed between the touch screen and the display screen The passivation layer is disposed between the shielding layer and the display screen, and the shielding layer material is an indium tin oxide film, a antimony tin oxide film, a conductive polymer film or a carbon nanotube film. 15. The desktop computer of claim 1 or 3, wherein the display is one of a liquid crystal display, a field emission display, a plasma display, an electroluminescence display, or a vacuum fluorescent display. 0 argument number Α 0101 1013171784-0 page 22 / 30 pages