290results about How to "Realize the touch function" patented technology

The invention discloses a capacitance type embedded touch screen and a display device. A public electrode layer connected in a manner of a whole surface in a TFT (Thin Film Transistor) array substrate is divided to form mutually insulated and crossly arranged touch driving electrodes and public electrodes; a touch sensing electrode is arranged on a colorful film substrate; and time-sharing driving is performed on the touch driving electrodes to realize a touch function and a display function. As the projection of the touch sensing electrode on the TFT array substrate is located in an area where the public electrodes are of the touch screen provided by the embodiment of the invention, and the public electrodes and the touch driving electrodes are located at the same layer but insulated mutually, an enfilade area generated between the touch sensing electrode and the touch driving electrodes is avoided, a mutual capacitance formed by the enfilade area is reduced, a proportion of a mutual capacitance variation quantity caused by touch of a finger is added, and touch accuracy is improved. In addition, as the time-sharing driving touch and display functions are adopted, mutual interference is also reduced, and picture quality is increased.

The invention discloses a capacitance-type embedded touch screen and a display device. At least one touch-control sensing electrode is arranged on a color film substrate; at least one touch-control driving electrode is arranged on a TFT (thin film transistor) array substrate; and the touch-control driving electrodes are electrically connected with a grid line in the TFT array substrate, wherein each touch-control driving electrode is composed of a plurality of touch-control driving sub-electrodes which are arranged in the same row and arranged between pixel cells of adjacent columns. By using the grid line connected with the touch-control drive electrodes to input a display signal as a touch-control driving signal, the touch-control function is achieved, and additionally providing an IC (integrated circuit) used for the touch-control driving is avoided, so that the manufacturing cost is reduced.

The invention discloses a capacitance embedded touch screen, a driving method of the capacitance embedded touch screen and a display device of the capacitance embedded touch screen. A touch sensing electrode is arranged on a color film substrate, a wholly connected common electrode layer in the TFT (thin film transistor) array substrate is divided into a touch driving electrode and a common electrode, the touch driving electrode adopts a time-sharing driving mode to achieve the display and touch functions, the time-sharing driving mode helps to reduce the mutual interference between display and touch and increase the picture quality and the touch accuracy; an overlapping area of the touch sensing electrode and the touch driving electrode indents to from an indentation part to reduce the facing area between the touch sensing electrode and the touch driving electrode, so as to reduce the sensing capacitance formed at the overlapping area; in order to solve the problem of the increase of resistance of the touch sensing electrode because of the reduction of the area of the indentation part, the area at the overlapping area between the touch sensing electrode and the common electrode is expanded outwards to form an expansion part to reduce the resistance of the touch sensing electrode, thereby enabling the resistance of the entire touch sensing electrode to meet the requirement of the touch screen.

The invention discloses a capacitive embedded touch screen panel and a display device. Touch induction electrodes are configured on a color film substrate, a whole-face-connected common electrode layer in a TFT (Thin Film Transistor) array substrate is divided into strips which are taken as touch driving electrodes, and the touch driving electrodes are driven in a time-share manner to realize a touch function and a display function. According to the touch screen panel provided by the embodiment of the invention, the structure of the common electrode layer of the TFT array substrate is changed to form the touch driving electrodes, and an additional process is not needed on the basis of a preparation process of the existing TFT array substrate, therefore, the production cost is saved, and the production efficiency is improved. Furthermore, as the touch function and the display function are implemented in the time-share driving manner, on one hand, chips for display driving and touch driving can be integrated, and thus the production cost is further lowered, on the other hand, the mutual interference of display and touch can be further decreased by the time-share driving manner, and thus the image quality and touch accuracy are improved.

The invention discloses a capacitive embedded touch screen and a display device. A common electrode layer which is connected on the whole surface in an array substrate is divided onto a touch drive electrode and a common electrode, which are insulated with each other and crossed; a touch induction electrode is arranged on an upper substrate for driving the touch drive electrode in a time-sharing manner, so that the touch function and the display function are realized. The projection, on the array substrate, of the touch induction electrode is arranged in an area at which the common electrode is positioned, so that the opposite surface between the touch induction electrode and the touch drive electrode can be reduced, and therefore, opposite capacitance is reduced; the side of the touch drive electrode and the side of the opposite common electrode are set to be folding lines; and the shape of each touch control induction electrode and the shape of the common electrode are set to be consistent, so that the opposite surface of the touch drive electrode and the touch induction electrode can be increased, and projected capacitance in a unit area is increased. By increasing the proportion of the projected capacitance to the opposite capacitance, the proportion of mutual capacitance variation caused by finger touch can be increased, so that the touch accuracy is improved.

The invention provides a liquid crystal panel, a liquid crystal display and a manufacturing method, and relates to the field of liquid crystal displays. By the aid of the liquid crystal panel, the liquid crystal display and the manufacturing method, the problem that a touch function and a display function of a panel are not integrated in the prior art is solved. A signal line is arranged between a color film substrate of the liquid crystal panel and a spacer made of piezoelectric materials, another signal line is arranged between the spacer made of the piezoelectric materials and an array substrate, the two signal lines respectively contact with side surfaces of the spacer made of the piezoelectric material, a side surface of the color film substrate and a side surface of the array substrate, projection, which is formed on the array-substrate-side surface of the spacer made of the piezoelectric materials, of the signal line on the color-film-substrate-side surface of the spacer made of the piezoelectric materials is intersected with the signal line on the array-substrate-side of the spacer made of the piezoelectric materials, and the two signal lines are insulating mutually. In addition, the spacer of the liquid crystal panel is made of the piezoelectric materials, and matches with the crossed signal lines to realize a touch function, so that the touch function and the display function of the panel are integrated.

The invention discloses an embedded type touch screen and a display device. A public electrode layer integrally connected in an array substrate is divided to form a plurality of touch drive sub-electrodes and a plurality of public sub-electrodes, the touch drive sub-electrodes and the public sub-electrodes are independent of each other and arrayed at intervals, the touch drive sub-electrodes are electrically connected through touch drive signal lines to form touch drive electrodes, and the public sub-electrodes are electrically connected through public electrode signal lines to form public electrodes; touch sensing electrodes are arranged on opposite substrates, the touch sensing electrodes and the touch drive electrodes are arranged in a cross mode, the touch drive electrodes are driven in a time-share mode, and therefore the touch function and the display function are achieved. Due to the fact that the touch drive electrodes in the touch screen are composed of the multiple touch drive sub-electrodes and the public electrodes are composed of the multiple public sub-electrodes, the signal transmission loads of the touch drive electrodes and the public electrodes are relatively close, the transmission speed of public signals in the public electrodes in the display stage and the transmission speed of public signals in the touch drive electrodes in the display stage are also relatively close, the problem that displayed images are not even can be solved, and image quality can be improved.

The invention provides a stretchable panel and a flexible display device, the stretchable panel comprising a stretchable substrate and an electrode layer, wherein the stretchable substrate comprises aplurality of island-shaped structures arranged in an array, and any two adjacent island-shaped structures are spaced apart from each other and connected by a bridge; the electrode layer includes at least one first sub-electrode and at least one second sub-electrode, the first sub-electrode being insulated from the second sub-electrode and the first sub-electrode and the second sub-electrode beinglocated on the island structure; the first sub-electrodes of the at least one row of island-shaped structures are electrically connected in turn to form a first electrode, and the second sub-electrodes of the at least one row of island-shaped structures are electrically connected in turn to form a second electrode. Based on this, the touch position and / or the stretching state can be determined according to the capacitance change of the first electrode and the second electrode. That is to say, the stretchable panel provided by the invention not only realizes the touch control function of the stretchable flexible display panel, but also realizes the function of detecting the stretching state, thereby expanding the application range of the stretchable panel and the flexible display device.

The invention discloses an in cell touch display screen, a driving method of the in cell touch display screen and a display device. Every sub-pixel set consists of at least two sub-pixels, cathode layers of different sub-pixel sets are independent from each other, namely, a cathode layer which is arranged on the whole surface in the prior art is divided, and the cathode layers of the sub-pixel sets are connected with a driver chip through wires; the cathode layers are reused as self-capacitance touch control electrodes, the driver chip detects changes of capacitance values of the cathode layers through the wires to judge the touch control position, and therefore a touch control function is fulfilled. In addition, in the in cell touch display screen, signals outputted by the driver chip to the signal ends of sub-pixel circuits and the cathode layers in the fourth stage are formed in a mode that same touch control scanning signals are superposed on the basis of signals outputted in the third stage, and therefore the purpose that the working states of modules of the sub-pixel circuits are same to the working states in the third stage so as to ensure that normal display can be conducted can be achieved, and the in cell touch display screen based on an organic light emitting diode is obtained.

The invention discloses an embedded type touch screen which has the characteristics of simple structure and lower cost. The embedded type touch screen comprises a first substrate and a second substrate which are arranged oppositely, a plurality of transversely-arranged touch driving lines, a plurality of longitudinally-arranged touch induction lines, and a plurality of touch control scanning TFTs (thin film transistor), wherein a plurality of gird lines are transversely formed on the first substrate; the grid of each touch control scanning TFT is connected with one grid line; and the grid line is only connected with the grid of one touch control scanning TFT; the source of each touch control scanning TFT is connected with a touch driving circuit; the drain of each touch control scanning TFT is connected with one touch driving line; and the number of the touch control scanning TFTs is not less than that of the grid lines and not more than that of the touch driving lines.

The invention discloses a liquid crystal box, a 3D touch control display device and a control method thereof. The liquid crystal box comprises a first baseplate, a second baseplate, a liquid crystal layer positioned between the first baseplate and the second baseplate, grating layers positioned on the first baseplate, a touch control electrode layer positioned on the second baseplate, as well as a second polarizer and a third polarizer positioned on one sides, opposite to the liquid crystal layer, of the first baseplate and the second baseplate respectively. Based on the structure, in a time-sharing period of a 3D display mode, driving voltage is applied to the touch control electrode layer and the grating layers in sequence, and touch driving and grating driving are performed in sequence; in the grating driving process, the touch control electrode layer performs ground connection by serving as the common electrode layer of the grating layers; in the process of touch driving, the grating performs ground connection, various electrodes of the touch control electrode layer serve as the touch control electrodes of the touch control module; one-step detection is performed to the touch control signal, the time of the process of touch driving is less than the retention time of liquid crystal molecules; when the 3D display is performed, the light splitting function and the touch control function of the grating are realized at the same time; and two layers of glass baseplates are saved.

The invention discloses an infrared laser pointer remote pointing and virtual touch system which is characterized in that the system is composed of a computer system, an infrared laser pointer, an image acquisition device and an image identification positioning module; the computer system comprises a display device and a mainframe computer; the infrared laser pointer is provided with an infrared laser emitting key and can emit an infrared laser to point to a display screen; the image acquisition device is arranged in front of the display device to completely contain the display screen in the viewfinder range; the image identification positioning module identifies an infrared laser point and the position thereof in the display screen according to the acquired image, differentiates different operations including light spot instruction, light spot movement and clicking according to the time length and the times of the infrared laser, controls the computer system to generate a light spot at the corresponding position on the display screen and completes the corresponding operation. The invention is especially suitable for large-screen display equipment.

The invention discloses a capacitance type touch module, a capacitance type in cell touch panel and a display device, and adopts the scheme that a whole surface-connected public electrode layer in an array substrate is divided to form touch inducting electrodes and touch driving electrodes which are insulated with one another, and the touch inducting electrodes and touch driving electrodes are driven in a time-shared manner, so that a touch function and a display function are achieved; each of touch inducting electrodes comprises a plurality of touch inducting subelectrodes, each of touch driving electrodes comprises a plurality of touch driving subelectrodes, and the opposite side edges of the adjacent touch inducting subelectrode and the touch driving subelectrode are fold lines, so that the opposite area between the adjacent touch driving electrode and the touch inducting subelectrode is increased, the mutual capacitance between the touch driving electrodes and the touch inducting subelectrodes in a unit area is increased, and further the sensitivity of the touch panel during touch is improved.

The invention discloses an array substrate, a capacitive touch screen and a touch display device. A common electrode layer of the array substrate comprises a plurality of touch drive electrodes and a plurality of common electrodes; the touch drive electrodes and the common electrodes are intersected; the touch drive electrodes extend in a column direction; the common electrodes extend in a row direction. A pixel electrode layer of the array substrate comprises a plurality of first leads; projections of the first leads on the array substrate locate in an area of the common electrodes and right face data line positions in the area of the common electrodes; the first leads having the projections locating in the area of the same common electrode form one touch drive electrode. The touch drive electrodes and touch sensing electrodes are arranged on the common electrode layer and the pixel electrode layer respectively, the array substrate with the touch function can be manufactured without adding manufacturing processes during manufacturing, the manufacturing process is simple, production cost is reduced, and production efficiency is improved.

The invention discloses a touch panel, the touch panel includes a cover plate, a driving electrode and a sensing electrode, the driving electrode and the sensing electrode are located on the cover plate, the driving electrode and the sensing electrode A sensing capacitor is formed between them, the cover plate includes a shielding area and a transparent touch area, the shielding area is used to cover non-transparent functional devices, the shielding area is embedded in the touch area, and the shielding area The vertical projection of the sensing electrode separates the sensing electrode to form a first electrode and a second electrode, and the first electrode and the second electrode are electrically connected to a circuit board to realize a touch function. The invention also discloses a display device. The shielding area is embedded in the touch area, which increases the coverage area of ​​the touch electrodes (sensing electrodes and driving electrodes), that is, increases the coverage area of ​​the touch function, realizes the approximate full-screen touch function, and greatly improves the user experience.

The invention discloses an embedded capacitive touch control display panel, display equipment, a control device and a control method, is used for realizing display and touch control functions of the display panel without additionally arranging a touch control panel, and achieves the effects of simplifying the structure of the embedded capacitive touch control display panel and increasing the light transmissivity. The embedded capacitive touch control display panel provided by the embodiment of the invention comprises a color film substrate, a liquid crystal material and an array substrate, wherein touch control induction electrodes are formed on the color film substrate; touch control drive electrodes are formed on the array substrate and are positioned between the array substrate and the liquid crystal material; and in a light transmission direction, projections of the touch control induction electrodes and the touch control drive electrodes all fall in a black matrix region of the color film substrate.

The invention discloses a capacitive touch display panel, a display device, a control device and a control method, which are used for solving the display and touch function of a display panel without additionally adding a touch panel, simplifying the structure of the capacitive touch display panel and increasing the light transmissivity. The capacitive touch display panel provided by the embodiment of the invention comprises an array substrate, a color film substrate and a liquid crystal layer which is positioned between the array substrate and the color film substrate, wherein the array substrate comprises a substrate, a polarizer, a BM (Black Matrix) and a TFT (Thin Film Transistor) functional unit, the array substrate is positioned at a light outlet side of the capacitive touch display panel, the color film substrate is positioned at a light inlet side of the capacitive touch display panel, the TET functional unit comprises a grid line, a data line and a TFT, the BM corresponds to the TFT, and projections of a grid electrode, a source electrode and a drain electrode of the TFT in a substrate direction are all projected in the BM.

The invention discloses a display device and a preparation method thereof, and the display device can realize a touch function by combining a flexible display panel with a touch substrate through a first bonding layer and enabling an effective touch area to cover a display area. Moreover, a supporting layer is filled in a gap between the touch substrate and the flexible display panel, and the orthographic projection of the supporting layer on the flexible substrate at least covers the area, directly facing the step area, of the binding area, so that the gap between the touch substrate and the flexible display panel can be filled, the strength of the binding area can be improved, and the risk of line bending and breaking can be reduced.

The invention is suitable for the technical field of touch sensing and provides linear processing method and system of coordinates of a touched point at the marginal area of a touch screen, wherein the method comprises the following steps of: a. calculating initial coordinates of the touched point according to capacitance matrix data around the touched point; b. inputting the initial coordinates into a linear processing model which is established in advance and obtaining actual coordinates of the touched point, wherein the linear processing model contains functional relation information of the actual coordinates and the initial coordinates of the touched point; and c. responding the touching operation of a user at the position of the actual coordinates. When the marginal area of the touch screen is touched, the initial coordinates of the touched point, which are obtained by calculation according to the capacitance matrix data around the touched point, are input into the linear processing model to be carried out linear processing, and the actual coordinates of the touched point are obtained according to the functional relation information of the actual coordinates and the initial coordinates of the touched point in the model, therefore, the distortion is avoided when the coordinates of the touched point at the marginal area of the touch screen are calculated.

The invention discloses a touch display screen and a touch display device. The touch display screen comprises an array substrate, a color film substrate, a group of first electrode lines, a group of second electrode lines and transparent conductive shielding layers, wherein the array substrate and the color film substrate are symmetrically arranged; the group of first electrode lines is arranged on the array substrate or the color film substrate; the group of second electrode lines is arranged on the array substrate or the color film substrate and is in intersection arrangement with the group of first electrode lines; and the transparent conductive shielding layers are arranged on the color film substrate and are positioned on the group of first electrode lines and the group of second electrode lines, and one parts of the transparent conductive shielding layer corresponding to the first electrode lines and the second electrode lines are provided with hollow structures. Mutual inductance signals between the first electrode lines and the second electrode lines can pass through gaps of the hollow structure, and thus the implementation of the touch functional is ensured; and in addition, the transparent conductive shielding layers per se have conductivity, when a display screen is touched by external static electricity, electrostatic charges can be quickly led out and connected with the ground by the transparent conductive shielding layers, the electrostatic damage to the display screen due to the electrostatic charges can be prevented, and the display effect is further increased.

The invention provides a touch panel preparation method, a touch panel and a touch device. The touch panel comprises a first metal layer, an insulating layer and a second metal layer, wherein the first metal layer is arranged on a substrate; the first metal layer comprises a first touch electrode area, a signal wiring area and a redundant wiring area; the insulating layer is arranged on the firstmetal layer; the second metal layer is arranged on the insulating layer; the second metal layer comprises a second touch electrode area; positive projection, on the substrate, of the second touch electrode area is overlapped with positive projection, on the substrate, of a touch dead zone formed by the signal wiring area and the redundant wiring area of the first metal; and through the setting ofthe second touch electrode area, the touch dead zone of the first metal layer forms a conductive channel, so as to realize a touch function.

The embodiment of the invention discloses a capacitance-type touch screen displayer. The capacitance-type touch screen displayer comprises a first polarizer, a CF substrate, a liquid crystal layer, a TFT substrate and a second polarizer that are sequentially arranged; furthermore, the capacitance-type touch screen displayer also comprises a capacitance-type touch screen sensing unit that is arranged on the surface of the CF substrate and faces the direction of the first polarizer; and the capacitance-type touch screen sensing unit comprises a bypass electrode layer, an insulating layer and a first transparent electrode layer which are sequentially arranged on the surface of the CF substrate. The capacitance-type touch screen displayer has the advantage of being convenient to carry, and has high production efficiency and low cost.

The invention discloses an embedded touch display screen, a driving method thereof and a display device. At least two sub-pixels serve as a sub-pixel group, cathode layers of different sub-pixel groups are independent of one another, in other words, a cathode layer arranged on a whole surface is segmented in the prior art, the cathode layers of the sub-pixel groups are connected with a driver chip through wires, the cathode layers are reused as self-capacitance touch control electrodes, the driver chip detects capacitance value changes of the cathode layers through the wires so as to judge touch control positions, and therefore the touch control function is achieved. In the touch display screen, identical touch control scanning signals are superposed on signals output to signal ends of a sub-pixel circuit and the cathode layers by the driver chip in the fourth stage on the basis of signals output in the third stage, working states of modules of the sub-pixel circuit can be the same as the working state in the third stage, normal display can be guaranteed, and the embedded touch display screen based on an organic electroluminescent display screen is obtained.

The embodiment of the invention provides a micro-light-emitting-diode display panel and a display device. With a composite metal layer as a touch electrode, the space utilization rate of the display panel is improved and the lightening and thinning design of the display panel is realized. The micro-light-emitting-diode display panel comprises a plurality of light emitting elements arranged in a matrix. Each light emitting element consists of a first electrode, a semiconductor layer and a second electrode that are laminated successively; and the semiconductor layer is arranged between the first electrode and the second electrode. Each semiconductor layer includes a first semiconductor layer, an active layer and a second semiconductor layer that are laminated successively. In addition, each light emitting element also includes a metal layer encircling the side of the semiconductor layer; the metal layer and the first electrode are insulated with each other and the metal layer and the second electrode are insulated with each other. The plurality of light emitting elements are divided into a plurality of light emitting element groups, each of which includes a plurality of light emitting elements; and the metal layers of the plurality of light emitting elements in each light emitting element group are connected to each other to form a touch electrode.

The invention discloses a pixel circuit, an organic electroluminescent display panel and a display device. The pixel circuit is characterized in that a first node is initialized in the initializing time periods of a touch control phase and a display phase; the voltage of the first node is regulated in the touch control induction time period; a driving module is enabled to output a corresponding touch control signal under the control of the voltage of the first node in the touch control reading time period for realizing a touch control function; data writing is performed on the first node in the compensation and data writing time period of the display phase; the driving module is enabled to drive a light emitting device in a light emitting module to emit light in a light emitting time period for realizing the normal light emitting function of the light emitting device. Thus, compared with a traditional pixel circuit, the pixel circuit provided by the embodiment of the invention integrates the touch control function and a display function, so that the manufacturing cost of respectively arranging a display driving circuit and a touch control circuit can be reduced; the circuit structure is simplified; and the thickness of the display panel can also be reduced.

The invention discloses an in-cell touch panel and a display device. A wholly-connected public electrode layer in an array substrate is segmented to form a plurality of touch driving electrodes and public electrodes; touch sensing electrodes which are respectively of a hollowed-out grid structure are arranged above the public electrodes; time-sharing driving is conducted on the touch driving electrodes, so that the touch function and the display function are achieved. The patterns of the touch sensing electrodes in the in-cell touch panel are consistent with the outer contours of the public electrodes, and in the hollowed-out grid structure of each touch sensing electrode, the sizes of meshes located in the center region are larger than those of meshes located in the edge region; thus, projection capacitance between the touch sensing electrodes located on the edge region and the touch driving electrodes can be increased, and improvement on the touch flexibility is facilitated; the meshes, in the center region, of the touch sensing electrodes are relatively sparse, the overall earth capacitance of the touch sensing electrodes can be reduced, and it is guaranteed that the touch sensing electrodes have small signal delay.

The invention discloses a touch panel and display screen integrated OLED display device, which comprises an anode substrate and an encapsulation cover plate which are stuck and connected and functional layers which are arranged in turn between the anode substrate and the encapsulation cover plate, wherein the inner surface of the encapsulation cover plate of the display is provided with touch functional layers, and the touch functional layers comprise a first transparent electrode layer, a first transparent electric insulating layer, a second transparent electrode layer and a second transparent electric insulating layer which are arranged in turn on the inner surface of the encapsulation cover plate; and the first transparent electrode layer, the first electric insulating layer and the second transparent electrode layer form a flat capacitor array. The touch sensing functional layers are integrated on the encapsulation cover plate, so display and touch functions can be realized without sticking a touch module to the exterior of the display screen, and the structure of the device is more compact and favorable for reducing the appearance size and weight of the device.

The invention discloses a display substrate, a display panel and a display device. The display substrate comprises a substrate, at least one conducting layer, a plurality of patterned piezoelectric layers, a plurality of first conducting wires and a plurality of main columnar shock insulator bodies, wherein the conducting layer is arranged on the substrate; the plurality of patterned piezoelectric layers are arranged on the conducting layer; the first conducting wires are arranged on the patterned piezoelectric layers; the main columnar shock insulator bodies correspond to the first conducting wires, when the touch occurs, pressure of the main columnar shock insulator bodies on the corresponding patterned piezoelectric layers is converted into electric signals through the patterned piezoelectric layers, and the electric signals are outputted through the first conducting wires. According to the technical scheme, while the touch function of the display panel and the display device is realized, the power consumption is also reduced, so that a power-saving effect can be realized.

The invention discloses an embedded touch panel. The touch panel comprises an array substrate and a chip on film, the array substrate comprises a display area and a non-display area, the non-display area is provided with a chip on film binding area used for receiving external signals by being in lap joint with the chip on film, multiple transmission pins are arranged on the chip on film binding area, connecting lines connected with the transmission pins are arranged on the non-display area, and the connecting lines are used for transmitting the external signals to the display area; the chip onfilm is provided with an integrated circuit achieving touch and display functions. The screen-to-body ratio of display equipment is increased, and the user experience is improved.

The invention relates to a nano carbon tube capacitive type touch screen and a production and manufacturing method of the nano carbon tube capacitive type touch screen. The structure comprises a cover plate layer, an OCA (Optically Clear Adhesive) optical adhesive layer and a nano carbon tube transparent conducting thin film layer, wherein a line layer is further arranged on the lower surface of the nano carbon tube transparent conducting thin film layer; an electrode layer is arranged at the periphery of the line layer; the electrode layer is used for leading out the line layer; in a working process, a low-voltage alternating-current electric field is formed in the nano carbon tube transparent conducting thin film layer; when a finger of a user touches the surface of the nano carbon tube capacitive type touch screen, a coupling capacitor is formed between the finger and the nano carbon tube transparent conducting thin film layer; meanwhile, a certain number of charges are transferred to a human body; in order to recover charge loss, the charges are supplemented from four corners of the nano carbon tube capacitive type touch screen; the charge number supplemented in each direction is proportion to the distance to a touch point so that the position of the touch point can also be calculated.