CN104035616A - Multi-point touch screen using diode display - Google Patents

Abstract

One is a touch screen system formed by using diode display technology combined with multi-touch technology, including diode display and touch screen components. The touch screen includes its control circuit. When the host runs multiple programs and displays multiple screens, Appropriate resources are allocated to each screen or program, which can be processed in parallel and multi-touch operation at the same time, and can effectively reduce the use of diode lights and reduce costs. The present invention can use a small number of light-emitting diode lights to play a role beyond the existing light-emitting diode displays. The effect can also save costs by reducing the number of processes. Moreover, the present invention can adjust brightness to prevent eye fatigue of viewers, and can use more than 1 billion colors to play video, thereby conveying bright light, such as for users who observe and monitor in a monitoring room, it can reduce visual fatigue and can It is convenient for users to adjust the size of each monitoring screen at will, and carry out key monitoring on key parts.

Description

A multi-touch touch screen using a diode display

technical field

The present invention relates to a touch screen and its display, in particular to a touch screen and its display using multi-touch technology. The display uses light-emitting diode lights to play text, numbers or symbols in real time, and loads images made by flash programs A real-time video display method and a recording medium for real-time playing of various video files or video files.

Background technique

At present, the touch screen is only a substitute for the mouse and keyboard, and is used as an input unit. Due to cost considerations, most touch panels use resistive type, while infrared, ultrasonic or surface capacitive technologies are becoming more and more popular with diversified large-size panel application products. , easy to use and good human-computer interaction make it more and more widely used.

The touch screen monitor (Touch Screen) allows the user to operate the host computer as long as the icon or text on the computer display screen is lightly touched with a finger, thus getting rid of the keyboard and mouse operation and making the human-computer interaction more straightforward. It is mainly used for information query in public halls, leadership offices, electronic games, ordering songs and dishes, multimedia teaching, air ticket/train ticket pre-sale, etc. The products are mainly divided into three categories: capacitive touch screen, resistive touch screen and surface acoustic wave touch screen.

Touch screen display technology is a new type of human-computer interaction input method. Compared with traditional keyboard and mouse input methods, touch screen input is more intuitive. With recognition software, the touch screen can also realize handwriting input. The touch screen is composed of a detection part installed in front of the display screen and a touch screen controller. When a finger or other object touches the touch screen installed on the front of the display, the touched position is detected by the touch screen controller and sent to the host through the interface (such as RS-232 serial port). Large touch screen function, multifunctional smart board, computer and projector together form a large touch screen, project the computer screen onto the smart board through the projector, use pointer or fingers instead of mouse to operate the computer on the smart board, control Windows or Macintosh and its application. Surface acoustic wave touch screen, the touch screen part of the surface acoustic wave touch screen is just a piece of transparent strengthened glass, so it can be made into a flat, cylindrical or spherical surface, and no special coating is required on the surface of the touch screen. The corners of this touchscreen have ultrasonic transducers that send a high-frequency sound wave across the surface of the screen. When a finger or other objects that can absorb or block sound wave energy touch the screen, the sound wave energy passing through the finger is partially absorbed, and the coordinate position can be determined according to the change of the receiver signal. Compared with other types of touch screens, surface acoustic wave touch screens are not affected by environmental factors such as temperature and humidity, and have high resolution; good light transmittance, which can maintain clear and bright image quality; fast response speed; ) response, so it is widely used.

According to the medium used and the working principle, the touch screen can be divided into four types: resistive type, capacitive induction type, infrared type and surface acoustic wave type. The touch screen is gradually upgraded and developed from low-end to high-end: from resistive, infrared to capacitive inductive and surface acoustic wave.

Early touch screen displays were mainly used in commercial applications, such as ATM machines, information platforms at airports and railway stations, automatic transaction systems in banks, automatic vending systems, automatic video-on-demand systems, etc. With the popularity of tablet computers in recent years, touch-screen Displays and touch-type computers are becoming more and more popular due to their novel user experience and convenient portability. Due to the continuous expansion of their applications, the development of hardware and software cannot keep up with the pace of users, which also brings Come more and more new questions. For example, the basic skills of the current or existing touch screen can only be single-touch. Once the screen detects that a contact has data input, even if there are other contact inputs, it will be shielded and only for the first contact. The input is processed, which brings a lot of inconvenience and cannot be used to its full potential. In real life, it is often necessary to control multiple contacts at the same time. For example, when the user or due to application requirements (such as running multiple applications or windows) or due to objective limitations of screen size (such as displayed pictures or text, media items, etc. beyond the display range of the screen, and the position that needs to be positioned cannot be found only by turning the screen in one direction), or due to special drawing requirements and other factors. When manipulating multiple touch points on the display screen, the prior art can only be realized by switching programs, shrinking images or text pages, performing multiple repeated actions, and the like.

Based on the above problems, after painstaking research, the inventor proposes a display that uses a small number of light-emitting diode lamps to perform better than existing light-emitting diode displays, and improves the existing multi-touch technology, which can solve the above problems. The system performance can be optimized, and many defects of the existing technology have been targetedly improved, and a few light-emitting diode lamps can be used to achieve an effect beyond the existing light-emitting diode display, and cost can be saved by reducing the process. Moreover, the present invention can adjust the brightness to prevent eye fatigue of viewers, especially when it is used in a place that needs to be turned on for a long time and monitored by people, it can save a lot of energy and cost and protect the eyesight and health of monitoring personnel.

For a light emitting diode (LED: Light emitting diode) display, reference may be made to the prior art of the patent application number 200710145971.5. The present invention mainly provides a display with a touch screen combined with this display or other types of liquid crystal displays, a method and a system thereof. For touch screens of resistive type, capacitive induction type, infrared ray type and surface acoustic wave type, please refer to related literature Existing technology or existing patents, this invention mainly introduces the combination of touch screen technology and liquid crystal display technology and other technical problems solved thereby.

Contents of the invention

Based on the above technical problems, the object of the present invention is to provide a touch screen display, which can perform multi-touch, control multiple application programs running in parallel, and/or conveniently display various graphics and texts larger than the screen display size A method, system, and device that does not slow down system performance or even optimize system performance without sacrificing resolution, and/or performing special graphics, and can use a small number of LED lights to achieve an effect that surpasses that of existing LED displays, and / or save costs by reducing the process, and / or adjust the brightness to prevent the eyestrain of the viewers, especially when used in places that need to be powered on for a long time and monitored by someone, it can save a lot of energy and cost and protect the monitoring personnel vision and health.

Based on the purpose of the above invention, the present application provides a multi-touch display method for installing a touch screen on a light-emitting diode display. A touch screen and its touch screen control components are additionally installed on the diode display. It includes a control chip, an input signal detection unit, an output signal sending unit, a memory, and a data cache. The touch screen can display multiple screens or window programs, and the multiple screens or window programs are programs for parallel display and processing. A program corresponds to its display area as the input interface of the display interface. Each program being displayed is assigned a process and process ID in the host CPU, and the CPU will set up and process each running screen or window program according to the process ID. The processing module performs signal interaction with the touch screen control part, the processing module includes an output submodule, a memory, a processing submodule, and an interactive submodule, and the input module is used to receive the touch screen in the current display area of the screen Input, and send it to the processing module for processing, return the processing result immediately after processing and output to the output module, the output module displays and outputs the processing result, and the memory stores the endpoint value and display parameters of the current screen or window program, etc., used by the interactive module It is used for data interaction with other screens or window programs, or with the entire system, for example, some data in the currently displayed screen or window program can be pushed or sent to other screens,

The display also includes:

The display part is composed of a plurality of light-emitting diode PCB parts in series, wherein the light-emitting diode PCB part is formed by combining a plurality of light-emitting diode lamps and driving elements on a single board, and the plurality of light-emitting diode lamps Composed of red, green and blue light-emitting diodes, the drive element synchronizes and transmits the playing image or video data;

Power supply department, supplying power and stabilizing voltage;

The host is used to design or edit the image to be played on the display part. The host supports a playback software, which includes a software main menu for loading images or videos of flash files and simulating them, displaying the loaded The display window of the flash file, the loading information indication window indicating the size of the file on the display window, the file name and the screen size, etc., and the user can easily grasp the work of the display window progress execution info window; and

The communication control part is connected between the host and the display part, stabilizes the output voltage of the display part and eliminates noise or surge, and synchronizes the images or videos output by the host to the display part in real time change.

Based on the further invention purpose of the present application, when a certain screen or window program or several screens or window programs are extremely enlarged, due to the size limitation of the screen, the screen or window program will send instructions through the interactive module to make the Other unoperated screens or window programs of the original size are shrunk to meet the current screen or window program.

Based on the further invention purpose of this application, all the screens or window programs displayed on the display can run the same program or different programs at the same time, and can perform data interaction with each other, for example, one of the screens or The data in the program is pushed to another screen or program.

Based on the further invention objective of the present application, multi-touch can also be performed on the same screen or program, such as game battle or collaborative drawing.

Based on the further invention purpose of the present application, the keyboard can only be assigned to one currently running application, so either the application of the keyboard is occupied in token form, or the soft keyboard is loaded on the screen to realize text input.

Based on another object of the present invention, the present invention also provides a multi-touch display device in which a touch screen is added to a light-emitting diode display, including a light-emitting diode display and a touch screen mounted on the light-emitting diode display. The diode display is additionally equipped with a touch screen and its touch screen control components, the touch screen control components include a control chip, an input signal detection unit, an output signal transmission unit, a memory, and a data cache, and the touch screen can display multiple A screen or window program, the multiple screens or window programs are programs for parallel display and processing, each program corresponds to its display area as the input interface of the display interface, and each program being displayed is assigned a program in the host CPU. process and process ID, and the CPU will separately set a processing module for each running screen or window program according to the process ID to process, the processing module performs signal interaction with the touch screen control part, and the processing module includes an output submodule, a memory , processing sub-module, and interactive sub-module. The input module is used to receive the touch input in the current display area of the screen, and send it to the processing module for processing. After processing, the processing result is immediately returned and output to the output module. The results are displayed and output, and the memory stores the endpoint values and display parameters of the current screen or window program, etc. The interactive module is used for data interaction with other screens or window programs, or with the entire system. Some data in the currently displayed screen or window program is pushed or sent to other screens,

The display also includes:

The display part is composed of a plurality of light-emitting diode PCB parts in series, wherein the light-emitting diode PCB part is formed by combining a plurality of light-emitting diode lamps and driving elements on a single board, and the plurality of light-emitting diode lamps Composed of red, green and blue light-emitting diodes, the drive element synchronizes and transmits the playing image or video data;

Power supply department, supplying power and stabilizing voltage;

The host is used to design or edit the image to be played on the display part. The host supports a playback software, which includes a software main menu for loading images or videos of flash files and simulating them, displaying the loaded The display window of the flash file, the loading information indication window indicating the size of the file on the display window, the file name and the screen size, etc., and the user can easily grasp the work of the display window progress execution info window; and

The communication control part is connected between the host and the display part, stabilizes the output voltage of the display part and eliminates noise or surge, and synchronizes the images or videos output by the host to the display part in real time change.

Based on the further invention purpose of the present application, when a certain screen or window program or several screens or window programs are extremely enlarged, due to the size limitation of the screen, the screen or window program will send instructions through the interactive module to make the Other unoperated screens or window programs of the original size are shrunk to meet the current screen or window program.

Based on the further invention purpose of this application, all the screens or window programs displayed on the display can run the same program or different programs at the same time, and can perform data interaction with each other, for example, one of the screens or The data in the program is pushed to another screen or program.

Based on the further invention objective of the present application, multi-touch can also be performed on the same screen or program, such as game battle or collaborative drawing.

Based on the further invention purpose of the present application, the keyboard can only be assigned to one currently running application, so either the application of the keyboard is occupied in token form, or the soft keyboard is loaded on the screen to realize text input.

Through the above design, the present invention can use a small number of light-emitting diode lamps to achieve an effect beyond the existing light-emitting diode display, and can also save costs by reducing the process. Moreover, the present invention can adjust brightness to prevent eye fatigue of viewers, and can use more than 1 billion colors to play video, thereby conveying bright light, such as for users who observe and monitor in a monitoring room, it can reduce visual fatigue and can It is convenient for users to adjust the size of each monitoring screen at will, and carry out key monitoring on key parts.

4. Description of drawings

Fig. 1 is one of the schematic diagrams of multi-air touch in the present invention;

Fig. 2 is the second schematic diagram of multi-space touch in the present invention;

Fig. 3 is a structural diagram of a diode display of the present invention;

Fig. 4 is the display portion diagram of the diode display of the present invention;

Fig. 5 is a block diagram of the communication control part of the diode display of the present invention;

Fig. 6 is a schematic diagram of the multi-touch principle of the present invention;

Fig. 7 is a flow chart of the real-time video display method of the present invention.

5. Specific implementation

The structure and preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Fig. 1, Fig. 2 are the multi-point touch screen display schematic diagrams of the present invention, and in Fig. 1, label 10 is diode display screen, is equipped with touch screen and touch screen control part thereof on this diode display, described touch screen control part It includes a control chip, an input signal detection unit, an output signal sending unit, a memory, and a data cache. The touch screen can display multiple screens or window programs, and multiple display screens or window programs from A to S are displayed on the screen. The A-S screen or The window program is a program for parallel display and processing. Each program corresponds to its display area as the input interface of the display interface. Each program being displayed is assigned a process and a process ID in the CPU. The multiple screens or window programs For programs that are displayed and processed in parallel, each program corresponds to its display area as the input interface of the display interface. Each program that is being displayed is assigned a process and process ID in the host CPU, and the CPU will create a process for each running screen. Or the window program sets the processing module separately according to the process ID to process, and the processing module performs signal interaction with the touch screen control part, and the processing module includes an output submodule, a memory, a processing submodule, and an interactive submodule, and the input module is used to receive The touch input in the current display area of the screen is sent to the processing module for processing, and the processing result is returned to the output module immediately after processing. The output module displays and outputs the processing result, and the memory stores the endpoint of the current screen or window program Values, display parameters, etc., the interactive module is used for communication with other screens or window programs, or with the entire system for data interaction, for example, some data in the currently displayed screen or window program can be pushed or sent to other screens and the CPU will separately set up an input module, an output module, a memory, a processing module, and an interactive module for each running program screen. The input module is used to receive the touch input in the current display area of the screen and convert it Send it to the processing module for processing, return the processing result immediately after processing and output it to the output module, the output module displays and outputs the processing result, the memory stores the endpoint value of the current screen, display parameters, etc., and the interaction module is used to interact with other screens, or It is used for communication during data interaction with the entire system, for example, some data in the current display screen can be pushed or sent to other screens, etc. Since each screen has its own display control area, there will be no conflict in operating these areas in parallel in multiple different areas. Of course, if one or several of the screens are extremely enlarged, the Due to the size limit of the screen, the screen will send instructions through the interactive module to shrink other unoperated screens of the original size to meet the use of the current screen.

The above is only a schematic description, and the real situation is often more than this. For example, screen A can be used for online operations, screen B can be used for game operations, screen C can be used for shopping, screen D can be used for watching movies, etc., or both It is a video surveillance screen, and you can freely process each screen at the same time, such as fast forward, rewind, pause, adjust contrast, watch frame by frame, etc. At the same time, the control of the same screen can also be multi-touch simultaneous operation. For example, in some multi-player games, two people can control their respective operation objects at the same time for battle or cooperative combat. Therefore, it is recommended that there are no more than 4 touch points in a small area, such as within the same display screen.

It should be pointed out that since the hardware keyboard can only be assigned to one currently running application program, the application of the keyboard is either occupied by a token, or the soft keyboard is loaded on the screen to realize text input. As for the mouse, generally try not to occupy it alone.

The coordinates of each endpoint of the input interface are stored in the corresponding modules of the processor, and each screen corresponds to a processing module for corresponding processing. The screen can receive input directly from the touch screen, and combine the mouse and keyboard for more complex input , when zooming in on the A picture and the S picture at the same time (the zoom-in operation must be carried out in the display area of the A picture and the S picture), while the two pictures are enlarged, the other pictures will be correspondingly reduced to meet the current operation first. When using the screen, when the screen is enlarged, its endpoint value will be updated accordingly and the data stored in the memory will be rewritten, and its control area will also change accordingly.

The core of the multi-touch technology is FTIR (Frustrated Total Internal Reflection), that is, the frustrated internal total reflection technology. As shown in FIG. 4 , after the light beam emitted by the LED (Light Emitting Diode) is irradiated from the cross section of the touch screen to the surface of the screen, it will be reflected. If the surface of the screen is air, when the angle of incident light meets certain conditions, the light will be completely reflected on the screen surface. However, if a substance with a relatively high refractive index (such as a finger) presses the acrylic material panel, the condition of total reflection on the screen surface will be broken, and part of the light beam will pass through the surface and project to the surface of the finger. The uneven finger surface causes the light beam to scatter (diffuse reflection). The scattered light passes through the touch screen and reaches the photoelectric sensor. The photoelectric sensor converts the light signal into an electrical signal, and the system obtains the corresponding touch information. When multiple electrical signals converted by scattering (diffuse reflection), multiple control signals can be generated for simultaneous control to achieve the effect of multi-touch.

Thanks to multiple touch points responding simultaneously, the new touchscreen unleashes the full control potential of the human hand. No longer like a mouse, one hand can only operate one point, and multi-touch technology is a real multi-point control interface with a high degree of freedom. Different from ordinary touch screen technology, it can have multiple touch hotspots responding at the same time, and the response time is very short - less than 0.1 second, and it can support up to 32 points of simultaneous touch or even more.

However, sometimes when there is sweat or liquid on the finger, the touch will cause the control to fail. This is because the liquid will condense on the surface of the touch screen and cannot produce diffuse reflection.

Fig. 4 is a display diagram of a real-time video display screen of the present invention.

As shown in Fig. 3 and Fig. 4, the real-time video display screen of the present invention includes: a display part 600, which is formed by connecting light-emitting diode PCB parts 60 in series, wherein the light-emitting diode PCB parts 60 are composed of four light-emitting diode lamps 61 and driving elements 62 combined on a single board to form, the above-mentioned four light-emitting diode lamps 61 are composed of red, green and blue light-emitting diodes, the above-mentioned driving element 62 can synchronize and transmit more than one playing image or video data, and can The memory and buffer for temporarily storing data can adjust and stabilize the playback voltage, exchange and transmit real-time opening and closing command data; the computer 500 is used to design or edit the image to be played on the display unit 600, wherein the computer 500 supports a Playing software, it comprises the image or the video of loading flash file and imitates software main menu 51, shows the display window 53 of described flash file loaded, indicates the size of the file on the display window The loading information indication window 52 of information such as file name and screen size, and the execution information window 54 that allows the user to easily grasp the work progress of the display window 53; and the communication control unit 700, connected between the above-mentioned computer 500 and the above-mentioned display Between the parts 600, the output voltage of the display part 600 is stabilized, noise or surge is eliminated, and the image or video output from the computer 500 is transmitted to the display part 600 in real time in synchronization.

At this time, the above-mentioned display unit 600 can combine and transmit colors, and play 25.6 to 1 billion colors in real time. In order to avoid blackening, the interval A between the LED PCB parts 60 should be set to 20 to 80mm, which is set to 45mm is better. The interval between the light-emitting diode lamps 61 should be preferably set at 20-60 mm, more preferably at 50 mm.

The brightness of the light emitting diode PCB part 60 is varied within the range of 36.5% to 100% by the adjuster.

Wherein, the loaded image file or video file is made by a flash program.

Fig. 5 is a block diagram of the communication control part of the real-time video display of the present invention.

As shown in FIG. 5, the oscillating element 82 checks the connection number of the LED lamp 61, and forms a reference cluster that generates an 8-bit output value for each LED.

The indicating element 78 checks the output value of the oscillating element 82 and maintains the voltage, checks the amplitude within the range of the output value or amplifies the amplitude and outputs it to the central processing unit 74 . The power input 76 then generates assignment clusters.

The central processing unit 74 receives the assigned cluster (cluster) of the above-mentioned power supply input terminal 76 and the reference cluster of the above-mentioned oscillating element 82, receives the output value of the above-mentioned indicating element 78 and confirms the comparison detection value (voltage input and output value, current input and output value) value, frequency input and output value), and then generate a PWM signal according to the control function of each part and automatically control the gate voltage (gate charge). At this time, the reset terminal 71 is connected to the above-mentioned central processing unit 74, and when necessary, the error (error) or overflow (overflow) is eliminated and the initial value is restored, and the processor is restarted with the initial value.

The programmable element 79 receives the output data of the central processing unit 74 and eliminates the comparison difference value so that the output data is stable;

The regulator element 83 transmits the stable output values of the central processing unit 74 and the programmable element 79 to a video memory 75 .

The synchronous interface terminal 73 outputs a synchronous signal after receiving the output of the above-mentioned video memory 75 .

The communication element 77 receives the output synchronized by the synchronization interface port 73 and then transmits the playback data in a real-time signaling manner. At this time, the playing color setting switch 72 can modify as many as 25.6 to 1 billion playing colors. The driving element 62 can form a synchronized diversified video and transmit the playing video to the LED PCB part 60 in sequence.

The driving element 62 can form synchronized diversified videos and transmit and play the videos to the LED PCB part 60 in sequence.

The present invention provides a method for playing diversified videos on a display part composed of a LED PCB part and a LED lamp, the steps of which are as follows:

Load the video of the flash file to be displayed to the playback software installed on the PC. When there are multiple video frames loaded and displayed, the program of each video frame corresponds to its display area as the input interface of the display interface. The displayed programs are assigned a process and a process ID in the CPU, and the CPU will separately set up an input module, an output module, a memory, a processing module, and an interactive module for each running program screen. The input module is used to receive the current display of the screen. The touch input in the area is sent to the processing module for processing, and the processing result is returned to the output module immediately after processing. The output module displays and outputs the processing result, and the memory stores the endpoint value of the current screen, display parameters, etc., and The main menu of the software, the display window, the loading information indicator window indicating the file size, file name and screen size, and the execution information window allowing the user to easily grasp the work progress. The interaction module is used for data interaction with other screens or with the entire system for communication, for example, some data in the currently displayed screen can be pushed or sent to other screens, etc. Since each screen has its own display control area, there will be no conflict in operating these areas in parallel in multiple different areas. Of course, if one or several of the screens are extremely enlarged, the Due to the size limit of the screen, the screen will send instructions through the interactive module to shrink other unoperated screens of the original size to meet the use of the current screen.

The playback software includes: a software main menu, a display window, a loading information indication window indicating file size, file name and screen size, and an execution information window allowing users to easily grasp work progress, these information;

According to the arrangement sequence of the light-emitting diode PCB part of the display part, the four-corner primitives of the display window of the playback software are identified as reference points, and the display part forms a large-screen playback video through pseudo-median filtering and vector methods. ;

Identifying the video frames set in the time table of the flash file and turning on and off 4 LED lights composed of red, green and blue LEDs; and

After synchronizing the video frames, they are played and transmitted sequentially.

Wherein, the video frame is automatically assigned an image size, so that the heat dissipation of the LED lamp is synchronized with the video size.

The process of playing the video is briefly organized below. First, after receiving the output data of the programmable element 79 and eliminating the comparison difference, the stable output value is transmitted to the storage element 81 and stored. Then, temporarily store the playback data to be displayed in the display memory 75, and output them sequentially according to the synchronous signal of the synchronous interface port 73. At this time, the communication element 77 and the driving element 62 transmit the playback data in real-time signaling without being hindered by external noise and surge, so the synchronized multimedia can be transmitted to the LED PCB portion 60 .

FIG. 6 is a block diagram of the power supply unit of the real-time video display of the present invention.

As shown in Figure 6, the above-mentioned power supply part 90 includes: a power portal 97, which has an on-off switch 96 that can accept power; an electromagnetic interference filter 95, connected to the above-mentioned power portal 97 and eliminating high frequency in order to prevent parts from being damaged. Noise; capacitive element 93 is connected to the above-mentioned electromagnetic interference filter 95, and a power supply with a certain capacity is charged in order to prevent parts from being damaged during a power failure; rectifying element 98 is connected to the above-mentioned capacitive element 93, and the DC power is converted into an AC power; output The part 94 is connected to the above-mentioned rectifying element 98, and outputs corresponding power to the above-mentioned communication control part 700; and the cooling fan 91 and the radiator 92 are used to discharge the internal heat generated by a series of components to the outside or eliminate it.

Fig. 7 is a flow chart of the real-time video display method of the present invention.

As shown in FIG. 7 , after the playback software 50 loads the flash file, it will generate large-screen playback video, diversified playback video and real-time playback video, and then transmit the video to the display unit 600 for output after synchronizing the video through the communication control unit 700 .

At this time, set the arrangement order of the light emitting diode PCB part 60 in the playing software 50 and identify the playing video size of the display part 600 . That is to say, the primitives at the four corners of the display window 53 of the playing software 50 are recognized as reference points of the LED PCB 60 of the display 600 . At this time, the above-mentioned display unit 600 will form a large-screen playback video in accordance with the pseudo median (Pseudomedian) filter and vector method.

The video frames set on the timeline of the flash file are then identified.

The above video frames will change design over time. Various playing videos are formed by transmitting the on-off signal of the light-emitting diode lamp 61 . Furthermore, the image size can be automatically assigned to the video frame and the heat dissipation of the LED lamp 61 can be synchronized with the video size.

The above-mentioned design method not only connects the video memory and the drive components in series and synchronizes them, but also outputs stable videos sequentially at the same time, thereby generating real-time playback videos.

Through the above design, the present invention can use a small number of light-emitting diode lamps to achieve an effect beyond the existing light-emitting diode display, and can also save costs by reducing the process. Furthermore, the present invention can adjust brightness to prevent viewer's eyestrain, and can broadcast video using more than 1 billion colors to convey vivid light.

While the foregoing description and drawings describe preferred embodiments of the invention, it is to be understood that various additions, modifications and substitutions may be made therein without departing from the spirit of the invention. It will be apparent to those skilled in the art that the present invention can be implemented in other specific forms, structures, arrangements, proportions, and using other elements, materials and parts without departing from the spirit or essential characteristics of the present invention. Those skilled in the art will appreciate that the present invention is capable of employing numerous modifications in structure, arrangement, proportions, materials and components used in the practice of the invention, and others which are particularly adapted to particular applications without departing from the principles of the invention. environment and operational requirements. Therefore, the presently disclosed embodiments should be considered in all respects as illustrative and not restrictive of the scope of protection thereof.

Claims (10)

1. a kind of multi-touch display method that touch screen is installed on light-emitting diode display, touch screen and touch screen control part thereof are installed on this diode display, described touch screen control part comprises control chip, input signal Detection unit, output signal sending unit, memory, data cache, the touch screen can display multiple screens or window programs, the multiple screens or window programs are programs for parallel display and processing, and each program corresponds to its display area For the input interface of the display interface, each program being displayed is assigned a process and process ID in the host CPU, and the CPU will separately set a processing module for each running screen or window program according to the process ID for processing. The module performs signal interaction with the touch screen control part, the processing module includes an output submodule, a memory, a processing submodule, and an interaction submodule, and the input module is used to receive touch input in the current display area of the screen and send it Go to the processing module for processing, and immediately return the processing results to the output module after processing. The output module displays and outputs the processing results, and the memory stores the endpoint values and display parameters of the current screen or window program. The interactive module is used to communicate with other screens or windows. It is used for data exchange between programs or with the entire system. For example, some data in the currently displayed screen or window program can be pushed or sent to other screens. The display also includes: The display part is composed of a plurality of light-emitting diode PCB parts in series, wherein the light-emitting diode PCB part is formed by combining a plurality of light-emitting diode lamps and driving elements on a single board, and the plurality of light-emitting diode lamps Composed of red, green and blue light-emitting diodes, the drive element synchronizes and transmits the playing image or video data; Power supply department, supplying power and stabilizing voltage; The host is used to design or edit the image to be played on the display part. The host supports a playback software, which includes a software main menu for loading images or videos of flash files and simulating them, displaying the loaded The display window of the flash file, the loading information indication window indicating the size of the file on the display window, the file name and the screen size, etc., and the user can easily grasp the work of the display window progress execution info window; and The communication control part is connected between the host and the display part, stabilizes the output voltage of the display part and eliminates noise or surge, and synchronizes the images or videos output by the host to the display part in real time change. 2. The multi-touch display method according to claim 1, characterized in that when a certain screen or window program, certain several screens or window programs are extremely enlarged, due to the size limitation of the screen, the screen or window program The window program will send instructions through the interactive module to make other unoperated screens or window programs of the original size shrink to meet the use of the current screen or window program. 3. The multi-touch display method according to claim 1, characterized in that all the screens or window programs displayed on the display can run the same program at the same time, or run different programs at the same time, and can interact with each other. Perform data interaction, such as pushing data from one screen or program to another screen or program. 4. The multi-touch display method according to claim 1, characterized in that multi-touch can also be performed on the same screen or program, such as game battle or collaborative drawing. 5. The multi-touch display method according to claim 1, characterized in that the keyboard can only be assigned to one currently running application program, so either the application of the keyboard is occupied in a token form, or it is performed on the screen. The loading of the soft keyboard realizes the text input. 6. A multi-touch display device with a touch screen added to a light-emitting diode display, comprising a light-emitting diode display, a touch screen mounted on the light-emitting diode display, and a touch screen installed on the light-emitting diode display screen and its touch screen control part, the touch screen control part includes a control chip, an input signal detection part, an output signal transmission part, a memory, and a data cache, and the touch screen can display multiple screens or window programs, and the multiple screens Or the window program is a program for parallel display and processing. Each program corresponds to its display area as the input interface of the display interface. Each program being displayed is assigned a process and process ID in the host CPU, and the CPU will create a process for each program. The running picture or window program is separately set processing module according to process ID to process, and this processing module carries out signal interaction with described touch screen control part, and described processing module comprises output submodule, memory, processing submodule, interaction submodule, input module It is used to receive the touch input in the current display area of the screen, and send it to the processing module for processing, and immediately return the processing result and output it to the output module. The output module displays and outputs the processing result, and the memory stores the current screen or window The endpoint value of the program, display parameters, etc., the interactive module is used for communication with other screens or window programs, or with the entire system for data interaction, for example, some of the currently displayed screen or window program can be Data is pushed or sent to other screens, The display also includes: The display part is composed of a plurality of light-emitting diode PCB parts in series, wherein the light-emitting diode PCB part is formed by combining a plurality of light-emitting diode lamps and driving elements on a single board, and the plurality of light-emitting diode lamps Composed of red, green and blue light-emitting diodes, the drive element synchronizes and transmits the playing image or video data; Power supply department, supplying power and stabilizing voltage; The host is used to design or edit the image to be played on the display part. The host supports a playback software, which includes a software main menu for loading images or videos of flash files and simulating them, displaying the loaded The display window of the flash file, the loading information indication window indicating the size of the file on the display window, the file name and the screen size, etc., and the user can easily grasp the work of the display window progress execution info window; and The communication control part is connected between the host and the display part, stabilizes the output voltage of the display part and eliminates noise or surge, and synchronizes the images or videos output by the host to the display part in real time change. 7. The multi-touch display device according to claim 1, characterized in that when a certain screen or window program or some screens or window programs are extremely enlarged, due to the size limitation of the screen, the screen or window program The window program will send instructions through the interactive module to make other unoperated screens or window programs of the original size shrink to meet the use of the current screen or window program. 8. The multi-touch display device according to claim 1, characterized in that all the screens or window programs displayed on the display can run the same program at the same time, or run different programs at the same time, and can interact with each other Perform data interaction, such as pushing data from one screen or program to another screen or program. 9. The multi-touch display device according to claim 1, characterized in that multi-touch can also be performed on the same screen or program, such as game battle or collaborative drawing. 10. The multi-touch display device according to claim 1, characterized in that the keyboard can only be assigned to one currently running application program, so either the application of the keyboard is occupied in a token form, or the operation of the keyboard is performed on the screen. The loading of the soft keyboard realizes the text input.