76results about How to "Implement multi-touch" patented technology

The invention provides a multi-point touch positioning method applied in touch screen systems, which contains the following steps: (a). Measure touch signals, judge signal changing situation, calculate touching location coordinates and/or shape and size of touch points; (b). judge signal-point or multi-point touch according to quantity change of location coordinates--if single-point touch, single point operations will be implemented by touch screen system, otherwise, turn to step (c); (c). determine whether there is any new touch points added or left or not by comparing quantity change of location coordinates and/or change of coordinate value. If there are new touch points added, register new touch points information and record location coordinates of new touch points. If there are touch points left, then clear those points information. The invention has wider application range but lower cost, and realizes multi-point touch positioning.

An embodiment of the invention discloses a capacitive touch screen. The capacitive touch screen comprises a substrate, a plurality of induction electrodes arranged on the substrate and a touch control chip bound to the substrate, wherein the plurality of induction electrodes are arranged to form a two-dimension array. The touch control chip is connected with every induction electrode respectively through wires. The touch control chip is arranged to utilize a detection circuit with test precision adjustable to detect self capacitance variation quantity of every induction electrode, and accordingly touch information is determined. According to the capacitive touch screen, multi-point touch can be achieved genuinely, and touch positions of different touch objects can be detected accurately.

The invention provides an array pressure sensing device, which is suitable for multi-point touch sensing and pressure quantization identification. The array pressure sensing device comprises a plurality of first axes, a plurality of second axes, a plurality of piezoresistive units, a third axis, a plurality of standard resistors and a control unit, wherein the second axes are in staggered arrangement with the first axes, and one piezoresistive unit is arranged between staggered positions of each first axis and each second axis; and the third axis is in staggered arrangement with the first axes, and one standard resistor is arranged between staggered positions of each first axis and the third axis. The invention also provides a pressure identification method realized by the array pressure sensing device. The pressure identification method is realized by a scanning driving flow of the control unit, and a pressure quantization gray scale identification method for a linear piezoresistive system is provided.

The invention discloses a GOA drive circuit applied to a flat panel display and the flat panel display. The GOA drive circuit comprises a front section circuit, a middle section circuit and a rear section circuit, wherein GOA drive subunits in the front section circuit, the middle section circuit and the rear section circuit respectively receive a first clock signal and a second clock signal to sequentially generate corresponding gate drive signals, interrupt cycles are set in the first clock signals and the second clock signals so that interruption can be generated between the corresponding gate drive signals which are sequentially generated, and the flat panel display executes the touch control detection operation within the interrupted intervals. By means of the mode, the scanning interruption of the GOA drive circuit can be achieved, and the touch control scanning frequency is increased.

The invention relates to a touch-control type liquid crystal display device comprising a first base plate, a second base plate, a liquid crystal layer, a plurality of scanning lines, a plurality of data lines and a plurality of pixel units, wherein the first base plate and the second base plate are oppositely arranged; each pixel unit comprises a plurality of sub-pixels, each sub-pixel comprises a first common electrode, a second common electrode, a pixel switch element and a pixel electrode, wherein the first common electrode is arranged on the first base plate, the second common electrode is arranged on the second base plate, the pixel switch element is arranged on the first base plate, and the pixel electrode is electrically connected to the pixel switch element. The touch-control type liquid crystal display device also comprises a touch-control structure, a touch position output line and a touch detecting device, wherein the touch position output line is connected with the touch-control structure; the touch detecting device is connected with the touch position output line; the touch-control structure comprises a touch-control switch element and a touch unit, wherein the touch-control switch element is arranged on the first base plate; and when the touch-control type liquid crystal display device is touched, the touch-control switch element is electrically connected with the touch position output line. The touch-control type liquid crystal display device can realize multi-point touch to improve the display quality.

The invention discloses an electromagnetic induction type multi-channel handwriting input technical system and method. The electromagnetic induction type multi-channel handwriting input technical system comprises two or more electromagnetic pens, a signal transceiving and selecting module and a signal processing and control module, wherein the electromagnetic pens are wirelessly connected with the signal transceiving and selecting module through continuously variable electromagnetic waves; the signal transceiving and selecting module is connected with the signal processing and control module; the signal processing and control module is connected with a microprocessor. The invention provides the electromagnetic induction type multi-channel handwriting input technical system which can respond to at least more than two electromagnetic signals and a resonant electromagnetic pen input device; the device can provide support for one electromagnetic induction signal processing and control module to allow two or more wireless electromagnetic pens to operate simultaneously, so that a function of synchronous multi-channel handwriting input can be achieved.

The invention relates to a side detection-type multipoint touch screen based on frustrated total internal reflection; four side surfaces of an optical panel of the multipoint touch screen are optical surfaces, LED lamps are uniformly and respectively distributed on the adjacent side surfaces of the optical panel, and the optical axis direction of the LED lamp is vertical to the side surface of the optical panel; opto-electrical receiving tubes are uniformly and respectively distributed on the other two side surfaces of the optical panel correspondingly, the optical axis direction of the opto-electrical receiving tubes is vertical to the side surface of the optical panel; in the invention, LED lamps with infrared light wave band or visible light wave band are used as light sources, and the opto-electrical receiving tubes with the corresponding wave band are used for receiving, the signal of the opto-electrical receiving tube is processed by the circuit to obtain a touch signal, so as to be convenient for system integration. By adopting a side detection mode, the LED light sources and opto-electrical receiving tubes are arranged on the four side surface of the optical panel, so as to realize multipoint touch; meanwhile, light is prevented from being leaked from the optical panel, thereby greatly reducing the thickness and volume of the system.

The invention relates to the technical field of touch screens and particularly relates to a GG monolayer multipoint borderless touch screen and a preparation process thereof. The touch screen comprises a tempered glass cover plate, a transparent optical adhesive layer and ITO conductive glass, wherein a border wiring area of the ITO conductive glass comprises a transverse wiring area arranged at one end of the touch screen, the ITO conductive glass is provided with a monolayer multipoint electrode pattern of single-end outgoing line, and an FPC is mounted in the transverse wiring area in a press-fitting manner and is connected with an IC chip. According to the GG monolayer multipoint borderless touch screen and the preparation process thereof, the FPC is mounted in the transverse wiring area at one end of the touch screen in the press-fitting manner, and original left and right longitudinal wiring areas are canceled, so that longitudinal sides of the touch screen do not need wiring, and thus, a borderless visual effect is built; ultraviolet illumination is adopted during magnetron-sputtering ITO film plating, so that the photoelectric properties of the ITO conductive glass are improved, only one-time FPC press-fitting is required during preparation, the process is simple, the yield of products is high, and excellent properties and production stability for the touch screen can be guaranteed.

The invention discloses a mobile equipment test method and device. The method comprises the following steps: receiving a test command, wherein the test command is used for executing touch operation on at least two points on a touch screen of mobile equipment at the same time; converting the test command into a touch event recognized and responded by driving equipment of the touch screen; and executing touch operation on the at least two points according to the touch event. According to the mobile equipment test method and device, the technical problem that the test depth is low as only touch screen single-point touch is supported when test is carried out mobile equipment in related technologies is solved.

The invention discloses a touch screen. The touch screen comprises a touch panel, a printed circuit board, an infrared emitting element, an infrared receiving element and a light guide component, wherein the infrared emitting element and the infrared receiving element are arranged on the printed circuit board; and the light guide component is used for changing the propagation direction of a light beam emitted by the infrared emitting element so as to propagate the light beam along the touch surface of the touch panel, and changing the propagation direction of the light beam propagated along the touch surface of the touch panel so as to emit the light beam to the infrared receiving element. With the adoption of the touch screen, the coverage scope of the light beam is wide, the touch precision is high, the touch height is effectively reduced, and the high light resistance is provided.

The invention relates to a manufacturing method of a flexible film function piece. The manufacturing method includes a cutting step, a gluing step, a conventional machining step, a UV irradiation step and a separating, cutting and binding step, wherein in the cutting step, a transparent conducting film and a UV glue are cut into the size being consistent with the size of a transparent base plate respectively; in the gluing step, the transparent conducting film is stuck to the transparent base plate by means of the UV glue to form a semi-finished product; in the conventional machining step, a predetermined circuit is formed on the transparent conducting film; in the UV irradiation step, a UV lamp is used for irradiating a machined product so as to enable adhesiveness of the UV glue to be reduced; in the separating, cutting and binding step, the transparent conducting film with the predetermined circuit is removed from the transparent base plate, and at last, cutting and binding are conducted to obtain a finished flexible film function piece. According to the manufacturing method, the sheet of the transparent conducting film is stuck to the transparent base plate, subsequent machining procedures can be conducted conveniently, the defect that processing is difficult due to the fact that the transparent conducting film is soft relatively is overcome, after machining is completed, the flexible film function piece can be removed from the transparent base plate conveniently, and the manufacturing efficiency and the product yield are high.

The invention discloses a single-layer multi-point capacitive touch screen which comprises a plurality of driving electrodes and lead-out wires formed on a same electrode layer, and a plurality of induction electrodes which are complementary with the driving electrodes in shapes, are isolated from each other and are in non-electrical connection, wherein each driving electrode and one induction electrode which is complementary with the driving electrode in shape form a repeated electrode unit; each driving electrode consists of a frame and a K-shaped electrode, wherein the frame is formed by three sides of a rectangle, and the K-shaped electrode is formed by the sides between the other two sides; the induction electrodes positioned in the repeated electrode units in the same column are directly connected so as to form a plurality of columns of induction electrodes; and the driving electrodes in the repeated electrode units in the same row are connected on a flexible printed circuit board or a printed circuit board through the lead-out wires so as to form a plurality of rows of driving electrodes. Mutual capacitance change is formed between side walls of the driving electrodes and the induction electrodes before and after touch detection, so that the touch position is determined.

The invention provides a wireless touch screen control system formed by a multimedia device and a wireless control terminal device. Wireless transmission and receiving of the wireless touch screen control system is achieved through a wireless module with low bandwidth and power consumption. The multimedia device comprises a system graphical user interface, an activated control property obtaining module, an input subsystem and a wireless transmission and receiving radio frequency module. The wireless control terminal device comprises a processor, an input module, a display module, an external expansion storage module and a wireless transmission and receiving radio frequency module, wherein the input module, the display module, the external expansion storage module and the wireless transmission and receiving radio frequency module are respectively in bothway data interaction with the processor. The invention further provides a menu dynamic generation method in the wireless touch screen control system, achieved assemblies on the system graphical user interface are simplified by the multimedia device, only the position coordinate information and the assembly names are transmitted to the wireless control terminal device, and the wireless control terminal device displays simplified graph prompting operation. The wireless touch screen control system and the menu dynamic generation method of the wireless touch screen control system are low in cost and power consumption, portable and high in transmission efficiency.

The embodiment of the invention provides an infrared touch module and a touch display device. The infrared touch module comprises an infrared emitting unit and a touch structure unit of a layered structure, wherein the infrared emitting unit and the touch structure unit are arranged oppositely, the infrared emitting unit is used for emitting infrared rays, and the touch structure unit is used fordetermining a touch position by changing the transmittance of the infrared rays in case of touch. By the adoption of the layered structure, the thickness of the infrared touch module is effectively lowered, thinning is realized, and the infrared touch module and a display panel can form an ON-Cell or IN-Cell structure. Due to the fact that the infrared touch module determines the touch position bychanging the transmittance of the infrared rays at the touch position, multipoint touch can be realized. The embodiment effectively overcomes the defects that an existing infrared touch screen has large thickness and cannot realize multipoint touch.

The invention relates to the technical field of optic touch control, particularly to a touch screen multi-point touch control method and a device for front positioning of cameras. Cameras are respectively mounted at the left and the right corners of the upper edge frame of the positioning frame of a touch screen, two cameras shooting in the opposite directions are mounted in the middle of the upper edge frame, infrared light sources are respectively mounted on the left edge frame, the right edge frame and the lower edge frame of the positioning frame respectively, and the method comprises the following steps: acquiring light spot data in images of the cameras and calculating the light spot intersections; calculating the distance between the light spot intersections; arranging a distance threshold value and merging light spot intersections with distances smaller than the threshold value to obtain points to be located; and merging repeated points to be located to obtain touch points. According to the invention, real touch points and false touch points can be judged accurately, the resolution of the touch points is improved greatly, and the multi-point touch control in the technical field of front positioning of the cameras is achieved.

The invention relates to a manufacturing process of a multi-point touch single-layer film touch sensor. The process is based on a three-dimensional (3D) printing process to perform layering printing on functional images of the sensor by starting from the bottom layer and overlaying the images layer by layer; after the functional images are formed, the functional images are glued to optical adhesive to be subjected to de-foaming, cutting and forming, and the manufacturing process of the multi-point touch single-layer film touch sensor can be achieved. The manufacturing process of the multi-point touch single-layer film touch sensor has the advantages that the process is single, configuration space of a factory is small, a single 3D printer device is merely required, personnel allocation is small, and producing costs are sharply reduced; the utilization ratio of raw materials is high, and consumables are used for solid printing of functional zone patterns by nearly 100%; proofing can be rapidly achieved, and the production cycle is shortened; the production line is quite short, deficient manufacturing procedure factors are few, and the product yield of the manufacturing process is higher than that of traditional processes; chemical solution treatment is absent, and producing costs are further lowered compared with those of the traditional processes; different dots per inch (dpi), each layer film thickness and the number of layers are set on a 3D printer to manufacture electrode patterns with different impedances.

The invention discloses an implementation method for multipoint touch under a "channel" system. A data processing interlayer is provided on a multipoint touch screen driving program of the "channel" system. The method is used for completing the tasks that (1) a virtual device is registered to an I/O subsystem of an operating system, and switch-on operation, data reading operation and switch-off operation of the virtual device are all linked to an actual multipoint touch screen; (2) a data receiving thread is created, multipoint touch operation is waited for, and data generated by the received multipoint touch operation is analyzed; and (3) the analyzed data is repackaged and reported to an application layer according to a communication protocol provided by the data processing interlayer for a GUI layer user program to read, analyze and process. Through the method, multipoint touch of the touch screen of any data interface under the "channel" system can be realized, and any GUI user program (such as QT) can make a response to the multipoint touch operation just by observing the agreed protocol.

The invention discloses a display panel and a display device, and belongs to the technical field of display, the display panel comprises a plurality of scanning lines, a plurality of data lines and a plurality of sub-pixels, and each sub-pixel at least comprises a pixel electrode and a common electrode; the display area comprises a plurality of first touch electrodes and a plurality of second touch electrodes, the first touch electrodes multiplex the common electrodes, and the second touch electrodes are located between the adjacent sub-pixels in the first direction; at least part of the first touch electrode wire is located in the first non-display area, and the rest part of the first touch electrode wire is located in the second non-display area; the first touch electrodes are electrically connected with the driving chip through the first touch electrode wires, and the second touch electrodes are electrically connected with the driving chip. The display device comprises the display panel. According to the display panel, the number of the touch wires arranged in the display area can be reduced, the touch effect of high resolution and high touch sensitivity can be achieved, the lower frame of the display panel can be reduced, and the narrow frame design of the display panel is achieved.

The invention discloses a method for producing an ultrathin touch screen thin-film sensor. According to an inductive conductive film touch screen manufactured by the method, only an inductive conductive film layer is formed, an induction circuit is printed on the inductive conductive film in the etching and laser mode, and insulation paste and silver paste are printed. Compared with a traditional multi-point capacitive touch screen, the inductive conductive film touch screen manufactured by the method has the advantages that multi-point touch also can be realized, so that a terminal product is thin and light in weight. Moreover, the processing technology is simplified by the method, and the production efficiency is improved.