2, touch screen technology principle introduction
3, excellent quality touch screen - E1oTouch products
5, typical applications of the touch screen
2. Touch screen is the most convenient, simple, natural means of input, completely computer illiterate people can come up to operate the computer. Users look at the display content, want to choose what simply touch with their hands. Through the touch screen, people can enjoy swimming in your application software, query the information they are interested in.
Since the touch screen is the most suitable information query input device, the developed countries are actively engaged in the development of touch screen development, as if the PC from 286, 386 development to the Pentium machine, the touch screen from the low-grade to high-grade development, from infrared, resistive to capacitive inductive, and now the development of the surface acoustic wave touch screen and the five-wire resistance touch screen. Performance is more and more reliable, more and more advanced technology, such as the U.S. EloTouch surface acoustic wave touch screen, the installation of a pure glass without any film cladding, whether it is from the clarity or from the degree of durability are signaling the arrival of the age of mature products touch screen.
This chapter focuses on the current domestic market of surface acoustic wave touch screen, resistive touch screen, capacitive touch screen, infrared touch screen technology one by one for a detailed introduction. Although in early 95 came from overseas famous TPIS infrared touch screen discontinued the news, but in a short period of time, the various domestic soldiers will be the price of balanced strength, coexist in the domestic market for a period of time.
Because of the characteristics of the touch screen itself, the requirements of the touch screen in addition to the requirements of a very transparent, precise positioning, but also requires it to maintain accuracy for a long period of time, stable and reliable work, does not affect the aesthetics and is not easy to be destroyed. Therefore, judging the merits of a touch screen technology, mainly from these points to examine.
First of all types of touch screen characteristics of the comparison of a simple list is as follows:
Category
Performance
Surface acoustic wave
Capacitance
Infrared
Five-wire resistive
Four-wire resistive
Crispness is very good Character image fuzzy Good Character image fuzzy
Reflectivity Rarely Severe Yes Lesser
Light Transmission 92% (limit) 85% 75% 55%
Color Distortion No Yes No Yes Yes
Resolution 4096 x 4096 1024 x 1024 40 x 32 4096 x 4096 1024 x 1024
Pressure Axis Impacts No No No No No No
Drift No Drift None None None None
Scratch Resistance Very Good and Not Afraid of Hard Objects Fair, Afraid of Hard Objects Knocking Fair, Afraid of Sharp Objects Major Defects
Barbaric Use Not Afraid Fair Frame is Fragile Good but Afraid of Sharp Objects Poor
Response Speed 10ms 15-24ms 50-300ms 10ms 10-20ms
Materials Pure Glass Quadruple Laminate Film Translucent Housing Plated on glass Plated on plexiglass
Multi-touch Intelligent judgment Center point Top left corner Center point Center point Center point Center point
Light interference No problem No problem Can't exceed the range No problem No problem No problem
Electromagnetic field interference No problem No problem No problem Yes No problem No problem No problem No problem No problem
Dustproof No problem No problem No problem No problem Can't block the transmittance part No problem No problem No problem No problem
Life >> 50 million times Semi-permanent 20 million times Too many sensors high probability of damage 35 million times 1 million times
Installation Risks Not fragile Fragile Fragile Fragile housing Not fragile Fragile Fragile ITO
Market Rewind Rate 0 21% 40% 5% 30%
Appearance Not affect Not affect Not affect Not affect Appearance Not affect Not affect Not affect Not affect Not flat
On-site maintenance Not required Frequent calibration required Cleaning of the shell Not required Not required
1. Surface Acoustic Wave Touch Screen
This article takes the E1oTouch Surface Acoustic Wave Touch Screen of the U.S. E1o TouchSystems, Inc. as an example.
Surface acoustic wave, a kind of ultrasonic wave, in the medium (such as glass or metal and other rigid materials) surface for shallow propagation of mechanical energy waves. Surface acoustic wave performance is stable, easy to analyze, and in the process of transverse wave transmission has a very sharp frequency characteristics, in recent years in the direction of non-destructive testing, imaging and filters on the development of very mature.
The touch screen portion of a surface acoustic wave touch screen can be a flat, spherical, or cylindrical glass plate mounted in front of a CRT, LED, LCD, or plasma display screen. The glass plate is simply a piece of hardened glass, and is distinguished from other touchscreen technologies by the absence of any film or overlay.
The glass screen has vertical and horizontal ultrasonic transducers fixed in the upper left and lower right corners, and two corresponding ultrasonic receiver transducers fixed in the upper right corner. The four perimeters of the glass screen are engraved with reflective stripes sparsely and densely spaced at an angle of 45 degrees.
Figure: The InteIliTouch touchscreen consists of a reinforced glass plate with X- and Y-direction surface acoustic waves crossing its surface
Taking the Y-axis as an example, the transmitting transducer converts a 5MHz electrical signal generated by the controller into ultrasonic energy that is emitted. The design of the base of the transducer allows it to have a narrow direction angle to the left to propagate the acoustic surface adhesive energy, in the process of transmission, and by the bottom edge of the 45-degree reflective stripe upward reflection into the screen surface of the vertical direction of the uniform surface propagation, and then by the top edge of the reflective stripe to the right to the right into a line of propagation to the Y-axis receiver transducer, and ultimately converted into electrical signals transmitted back to the controller.
Received signal attenuates at the corresponding touch position
When there is no touch, the waveform of the received signal is exactly the same as the reference waveform. When the finger touches the screen, the finger absorbs part of the acoustic energy, and the controller detects the attenuation of the received signal at a certain moment, from which the position of the touch point on the Y-axis can be calculated, and the same principle can be obtained from the position of the touch point on the X-axis. (See Figure 2), in addition to the general touch screen can respond to the X, Y coordinates, surface acoustic wave touch screen also responds to its unique third axis Z-axis coordinates, that is, the user can sense the size of the touch pressure value. The principle is calculated by the attenuation of the received signal attenuation at the amount of attenuation. Once the three axes are determined, the controller transmits them to the host computer. Because the surface acoustic wave technology is very stable, and surface acoustic wave touch screen controller rely on the measurement of the attenuation moment on the time axis to calculate the touch position, so the surface acoustic wave touch screen is very stable, the accuracy is also very high, the current surface acoustic wave technology touch screen accuracy is usually 4096 × 4096.
Surface acoustic wave touch screen advantages are: the longest life (the authoritative U.S. electronic) Engineer magazine report is: the same position touch 5 dry million times without failure), belongs to the semi-permanent products, excellent anti-scratch, light transmittance (> 92%) and clarity of the highest, to maintain a clear and transparent image quality, there is no color distortion, these advantages derive from the fact that it is the touch screen is not any film and cladding of the pure glass, and unlike the cladding of the glass of the touch screen in the edge of the corners of the pressure suffered when the internal stresses Unpredictable may be concentrated in a certain place, therefore, the pure glass of the touch-screen installation risk is small; In addition, the surface acoustic wave touch-screen technology is absolutely no drift, after the installation of the calibration is no longer necessary, the direct use of the Dikal Cartesian coordinate system, the data conversion without distortion.
As mentioned earlier, surface acoustic wave touch screen also has a third axis Z axis, that is, the pressure axis response, this is because the user touches the screen the greater the force, the received signal waveform on the attenuation gap is also wider and deeper. In all touch screens only surface acoustic wave touch screen can sense the touch pressure this performance, with this feature, each touch point is not just a touch and no touch of the two digital switch state, but become able to sense the force of an analog value of the switch. This function is very useful, for example, in multimedia information query software, a button can control the speed of animation or image playback.
Surface acoustic wave touch screen of the above characteristics and other types of touch screen comparison see table 1, can be compared to see its greater superiority, especially to withstand a variety of rough touch is most suitable for the face of the public **** place of touch screen applications, public **** place is very destructive and can not be sent to the guard, therefore, be sure to choose a durable touch screen.
. Resistive technology touch screen:
The main part of the resistive touch screen is a piece of resistive film screen with the display surface is very compatible, this is a multi-layer composite film, by a layer of glass or plexiglass as the base layer, the surface is coated with a layer of transparent conductive layer called ITo, the top and then a layer of hardened outer surface treatment, smooth and scratch-resistant plastic layer, its inner surface is also coated with a layer of conductive layer (ITO) Or nickel gold), between the two layers of conductive layer there are many small (less than one-thousandth of an inch) transparent isolation point to separate them from the insulation. When the finger touches the screen, two layers of conductive layer in the touch point location there is a contact, the controller detects this connection and calculates the position of the X, Y axis, which is the most basic principle of all resistive technology touch screen *** with. See Figure 3.
Figure 3. Resistive touch screen structure and the principle of analog resistive screen
Resistive touch screen of the two layers of ITO work surface must be intact, in each of the work surface of the two side lines each coated with a silver gel, one end of the 5V voltage, one end of the 0V, can be formed in the work of the surface of a direction of a uniform and continuous parallel voltage distribution. After detecting a touch, immediately A/D conversion to measure the analog voltage value of the contact point, according to it and the 5V ratio formula can be calculated to touch the point of position in this direction.
It is necessary to mention two transparent conductive coating materials: ① ITO, oxidized steel, a weak conductor, the characteristics of when the thickness drops to 1800 E (E = 10-10 meters) will suddenly become transparent, light transmission rate of 80%, and then thin down the rate of light transmission instead of decreasing to the thickness of 300 E and then rose to 80%. But there is regret that ITO in this thickness is very brittle, easy to break and produce cracks. ITO is all resistive technology touch screen and capacitive technology touch screen are used in the main material, in fact, resistive and capacitive technology touch screen working surface is ITO coating. ② nickel gold coating, five-wire resistive touch screen of the outer conductive layer is used in the ductility of the nickel gold coating material, the outer conductive layer due to frequent touch, the use of ductile nickel gold material to extend the service life, but the cost is more expensive, nickel gold conductive layer, although the ductility of the conductive layer is good, but can only be used as a transparent conductor, is not suitable for the work surface as a resistive touch screen, because it is too conductive, it is not appropriate to be used for precision Resistance measurement, and metal is not easy to do very uniform thickness.
The first generation of four-wire resistive technology, two layers of ITO for the surface work are added to the 5V to 0V uniform voltage distribution field: a working surface plus the vertical direction, a working surface plus the horizontal direction. Leads to the controller total **** need four cables. Because the four-wire resistance touch screen by the outside of the layer of plastic and ITO coating is often touched, after a period of time, the thin outer layer of ITO coating will have a small cracks, obviously, conductive work surface once there is a crack, the current will go around it, and the work and on the distribution of the voltage field can no longer be uniform, so that in the vicinity of the cracks in the touch screen drifts seriously, cracks increase, some areas of the touch screen may never again Can't touch it.
Four-wire resistive touch screen base layer is mostly plexiglass, not only the existence of low transmittance, weathering, aging problems, and there is a risk of installation, this is because of the poor rigidity of the plexiglass, installation can not pinch the edge of the silver gel, so as not to thin ITO and relatively thick silver gel dehiscence, can not be forced to press or pull the touch screen, so as not to bet off the ITO layer. Some of the four-wire resistive touch screen after installation appears less flat because of this reason.
ITO is inorganic, plexiglass is organic, organic and inorganic is not a good combination of time will be easy to peel. If you can produce curved glass panels, glass is inorganic, and ITO can be very good combination of conductive glass, that resistance touch screen life is not able to greatly extend it?
The second generation of five-line resistive technology touch screen of the grass-roots level is the use of this conductive glass, not only that, five-line resistive technology to the two directions of the voltage field through the precision resistor network are added to the conductive surface of the glass, we can simply understand for the two directions of the voltage field time-shared in the same work surface, and the outer layer of nickel gold conductive layer is only used only as a pure conductor, there is a touch on both the inner layer of ITO contact point voltage detection. Detecting the inner ITO contact voltage and conductive current detection method to measure the location of the touch point. Five-wire resistance touch screen inner ITO need four leads, the outer layer only as a conductor only one, to the controller total **** need 5 cables. Because the five-wire resistive screen of the outer layer of nickel-gold conductive layer is not only good ductility, and only as a conductor, as long as it is not broken into two halves, it can still continue to complete the mission as a conductor, and the heavy responsibility of the inner layer of the 1TO directly with the grass-roots level of the glass combined into one as a conductive glass, conductive glass naturally without the plexiglass for the grass-roots level of the various shortcomings, therefore, the five-wire resistive screen service life and transmittance of the screen and the four-wire resistive compared to the screen There is a leap: five-wire resistive screen touch life is 35 million times, four-wire resistive screen is less than 1 million times, and five-wire resistive touch screen without the risk of installation, at the same time, five-wire resistive screen ITO layer can be made thinner, and therefore higher transmittance and clarity, almost no color distortion.
Whether it is a four-wire resistive touch screen or a five-wire resistive touch screen, they are a completely isolated from the outside world of the working environment, not afraid of dust, water vapor and oil, it can be touched with any object, can be used to write and draw, is more suitable for the field of industrial control and the use of a limited number of people in the office. Resistive touch screen *** with the same shortcomings because the outer layer of the composite film using plastic materials, do not know the person too hard or use a sharp touch may scratch the entire touch screen and lead to scrap. However, within limits, scratches will only hurt the outer conductive layer, the outer conductive layer of the scratch for the five-wire resistive touch screen does not matter, while the four-wire resistive touch screen is fatal.
Capacitive technology touch screen:
Capacitive technology touch screen is a four-layer composite glass screen, the inner surface of the glass screen and the interlayer is coated with a layer of ITO, the outermost layer is only 0.0015 mm thick silica glass protective layer, the interlayer ITO coating as a working surface, four corners of the four electrodes lead out of the inner layer of ITO for the shielding layer to ensure a good working environment.
When the user touches the capacitive screen, due to the human body electric field, the user's fingertips and the work surface to form a coupling capacitance, because the work surface is connected to a high-frequency signal, so the fingertips to absorb away a very small current. This current flows from the electrodes on the four corners of the touch screen, and theoretically, the current flowing through these four electrodes is proportional to the distance from the finger to the four corners, the controller through the four current ratio of the precise calculation, the location of the touch point, see Figure 4.
Figure 4. 4. Comparison of the four currents to calculate the location of the touch point
Capacitive touch-screen transmittance and clarity better than the Four-wire resistive screen, of course, can not be compared with the surface acoustic wave screen and five-wire resistive screen, see Table 1 and Figure 5, capacitive screen reflections are serious, and, capacitive technology, four-layer composite touch screen on the wavelengths of light transmittance is not uniform, there is a problem of color distortion, due to the reflection of the light in the layers, but also caused by the blurring of the image characters.
Figure 5. Why capacitive touch screen reflective and transmittance and clarity are not as good as the sound splash screen
Capacitive screen in principle to the human body as a capacitor element of an electrode use, when there is a conductor close to the laminated ITO surface coupled with a sufficient amount of capacitance between capacitance, the flow of current away from the screen is enough to cause capacitive screen malfunction. We know that the capacitance value, although inversely proportional to the distance between the poles, but proportional to the relative area, and also related to the insulation coefficient of the medium. Therefore, when a larger area of the palm or hand-held conductor close to the capacitive screen rather than touching the capacitive screen can be caused by the false action, in the humid weather, this situation is particularly serious, the hand holding the display, the palm of the hand close to the display within 7 centimeters, or the body close to the display within 15 centimeters can be caused by the capacitive screen of the false action.
Another disadvantage of capacitive screens is the lack of response when touched with a gloved hand or holding a non-conductive object, due to the addition of a more insulating medium.
Capacitive screen more major drawback is drift: when the ambient temperature, humidity changes, the environmental electric field changes, will cause the capacitive screen drift, resulting in inaccuracy. For example: the monitor temperature rises after the boot back to cause drift: the user touches the screen at the same time the other hand or side of the body close to the monitor will drift; more than 70 kilograms of the lad corrected capacitive screen, 40 kilograms of the lady may not be able to touch (the two ladies hold up their hands on it); capacitive touch screen near the larger objects moved will drift, you touch if someone comes around to watch it will also cause drift; capacitive screen drift; capacitive screen The cause of drift belongs to the inherent inadequacies of the technology, the environment potential surface (including the user's body), although far away from the capacitive touch screen, but much larger than the area of the fingertips, they have a direct impact on the determination of the touch position. In addition, the theory of many should be linear relationship is actually non-linear, such as: different body weight or different degree of finger wetness of the person sucked away from the total flow of electricity is different, and the change of the total flow of electricity and the four sub-flow of electricity is a non-linear relationship between the four corners of the capacitive touch screen used in this four-corner customized polar coordinate system is not yet the origin of the coordinates on the controller can not be detected and restored after the drift, and that the four After the completion of the A/D, from the value of the four points of flow to the touch point in the right-angle coordinate system of X, Y coordinates of the value of the calculation process is complicated. Since there is no origin, the drift of the capacitive screen is cumulative and calibration is often required on the job site as well.
In the U.S. casinos have had such an accident: the bingo machine installed at the time are capacitive touch screen, there is a guest of good fortune attracted many onlookers, but did not realize that at this time due to the environment of the electric field of a serious change in the capacitive touch screen failure. This casino later all changed to use surface acoustic wave touch screen to save the reputation, but from this thing can be reflected in the capacitive touch screen technology principle of the inherent shortcomings.
Capacitive touch screen outermost silica protective glass scratch resistance is very good, but afraid of fingernails or hard objects knocking, knocking out a small hole will hurt the laminated ITO, whether it is hurt the laminated ITO or installation and transportation process hurt the inner surface ITO layer, capacitive screen can not work properly.
Infrared touch screen is the use of X, Y direction on the dense infrared matrix to detect and locate the user's touch. Usually infrared touch screen in front of the monitor to install a frame, relying on the hidden in the frame of the circuit board in the screen on all sides of the infrared transmitter tube and infrared receiver tube, one by one corresponding to the formation of horizontal and vertical cross-infrared matrix. When the user touches the screen, the finger will block the location of the horizontal and vertical two infrared, and thus can determine the location of the touch point in the screen, see Figure 6.
Figure 6. infrared scanning touch screen principle
Installation of infrared touch screen is very simple, as long as the use of adhesive or double-sided tape will be fixed to this frame in front of the monitor can be. Most infrared touch screen controller is designed directly on the circuit board hidden in the frame, there are also infrared touch screen to the controller is designed in a separate small box. Controller through the keyboard interface or serial port to communicate directly with the host, go to the keyboard interface of the infrared touch screen users can even read the keyboard port directly from the touch screen data without any driver.
The resolution of the infrared touch screen is determined by the number of infrared tubes in the frame, so the resolution is low, the market is mainly 32 × 32, 40 × 32.
The main drawback of the original infrared touch screen is to rely on the infrared light work on the light environment is more sensitive to the factors, in the light of the larger changes in the misjudgment or even crash. The second generation of domestic anti-light interference type of infrared touch screen launched, the second generation of infrared touch screen has better overcome this weakness, but the infrared touch screen is after all, through the infrared light work, can only withstand a limited amount of light interference, and therefore in the use of the environment there are certain restrictions.
Another major disadvantage of infrared touch screen is the frame: it is not beautiful and luxurious, destroying the original shape of the display; it requires the frame inside the infrared color filter; in addition, the frame is not likely to be sturdy, according to the return of the situation to see, the frame of the infrared touch screen is the most likely to be damaged.
Third, the excellent quality of touch - EloTouch products
Elo TouchSystems company profile:
Elo TouchSystems, formerly known as E1ographics, the world's largest touch-screen development and production of manufacturers, its parent company - RayChem, specializing in the development and production of touch-screen. -RayChem, specializing in materials science and technology, products are widely used in post and telecommunications, electricity, aviation, aerospace, military, petrochemical and other fields.
Elo TouchSystems has been committed to the research and development of touch screens since 1971, and has always been in the vanguard of technology development in the field of touch screens. The company took the lead in the development of resistive technology touch screen, and in 1987 to a new technology touch screen - surface acoustic wave technology touch screen to the market, E1o Touchsystems has been the patent for these two technologies. That is, the surface acoustic wave touch screen technology and five-wire resistance touch screen technology introduced earlier.
As part of the company's extensive Total Quality Management, every E1o TouchSystems employee is committed to further improving production and after-sales service. The company itself has the potential for high volume production, thorough technical support and legally authorized agents around the world.
Millions of people are learning, accessing information, and controlling complex processes by touching Elo's touch screens. As E1o TouchSystems foresees, it is becoming increasingly clear that touch screens are the most intuitive, intimate, and simple input devices in the world.
The E1o TouchSystems provides such a direct and convenient link between the user and the application. It works with multimedia technology and computer graphic interfaces to amazing effect, and has been widely used in a variety of applications, gaining popularity around the world. one of the reasons for the success of the E1o touch screen includes the development of drivers for users of a variety of operating systems, providing a wide range of support: such as DOS, os/2, Windows 3.X, Windows 95, Windows NT, UNIX, and Apple, X, Windows 3.X, Windows 95, Windows NT, UNIX, and Apple Macintosh.
E1o touchscreen users can also purchase a plug-and-play touchmonitor that works right out of the box, or a touchscreen kit (which includes a touchscreen, controller card, cables, and accompanying software) that allows a professional to install it on the user's monitor. A variety of common displays and monitors have matching touch screens available, and special monitors can also be customized with a touch screen for the user.
Elo TouchSystems has a full range of touchscreen models: flat, cylindrical, spherical CRT tubes, LED arrays, LCDs, and iso-luminescent displays, and most sizes from 8 inches to 21 inches are in stock, and special sizes can be customized to meet the user's needs.
ELO product introduction
Surface acoustic wave touch screen: (IntelliTouch )
Surface acoustic wave touch screen is a completely transparent, and can be like the location of the sense of pressure as the touch screen. The screen is a piece of pure glass without any film and coating, because the user directly touches only the glass, so it is especially suitable for public **** place. For example, shopping malls shopping guide or kiosks with TV, office automation, etc. ELO's standard 1ntelliTouch touch screen resolution is 4096 × 4096, all-glass material of this touch screen has excellent light transmission. The main advantages of non-drift, high precision, scratch-resistant.
Five-wire resistive touch screen (AccuTouch ):
Five-wire resistive touch screen using the international evaluation of the high resistance of the patented technology: including compression molding of the glass screen and a layer of transparent scratch-resistant plastic. This type of touch screen is particularly suitable for applications that require a high precision touch screen, with an accuracy of more than 4096 x 4096, excellent clarity and very small parallax.
Five-wire resistive technology touch screen and other types of technology touch screen, compared to the main superiority in: no drift, high precision, fast response, can be touched with a finger or other objects, dust and oil, etc., mainly used for professional engineers or industrial sites.
Controller:
ELO's touch screen designed a complete series of controllers to adapt to a variety of different computers and microcontroller systems. AccuTouch touch-screen controllers can choose to RS-232 serial port, ISA bus plug-in card, MCA bus plug-in card or to provide its latest monolithic integrated chip SmartSet by the user to create their own controller. Controller; Intellitouch touch screen provides a serial port, ISA bus card, App1e Desktop Apple machine bus card several kinds of controllers and Smartset chip.
The controller provides a touch screen signal source, and will receive the sink analog signal converted to digital coordinates, while the coordinates sent to the host. The controller is not only made into a plug-in card, but also into the monitor and made into a separate external box (up to 100 meters).
Application development tools
Elo TouchSystems has developed a full suite of software for touchscreens that helps users quickly install and build touchscreen drivers.
With one of the MonitorMouse) registered trademark touch screen driver, the user can in its operating system (windows, windows NT, OS / 2, DOS, UNIX and App1e Macintosh) has a mouse driver based on the immediate start to use the ELO touch screen. As long as the application supports the mouse, the touch screen can be used directly without any development, and the mouse and keyboard can be used as usual. We also provide application development tools to help you add touch functionality to your existing software, whether it is graphical or text-based.
ELO additionally offers development tools that give users a variety of packages to populate their applications with the latest movie animations, multimedia information, and graphics techniques. Developers around the world have used these tools to develop countless touchscreen-enabled software programs with a wide variety of interfaces in a cost-effective manner.
Optional Driver Software
Operating System Software Driver
------- ---------- ---------- ---------- ---
DOS/ Mouse-based MonitorMouse for Dos imitation mouse driver
Keyboard-based TOUCHBACK imitation keyboard driver, recommended for use with DBASE, CA-CLIPPER, BASIC and Other software with keyboard driver, need to use TOUCHUP to define the touch area and the keyboard corresponds to
Non-mouse software ELODRV touch screen driver, for the new C, C + +, Pascal and assembly language development of the software
Mono touch-screen software can be a single touch-screen direct driver, need to use TouchUp to define the touch area.
windows MonitorMouse for Windows
Windows NT MonitorMouse for Windows NT (hosts with Intel CPUs only)
Os/2 MonitorMouse for Os/2
Macintosh MonitorMouse for Macintosh
Amiga Commodore-Amiga Manufacturer Supplied
UNIX UNIX Touchscreen Driver
Other Contact Technical Support Directly with E1o TouchSystems Computers Ltd. or your local Agent Service Provider
Note: E1o Touchsystems provides a full range of drivers and development tools to match various system environments, this table helps users to choose the most suitable driver for their development and application software platform.
V. Typical applications of the touch screen
Typical applications
★Education and training ★Program control
★Factory automation and industrial control ★Automatic testing
★Financial accounting ★Medical instruments
★Multi-media information query ★Sales management
☆Popular information ☆Automatic vending
☆Management Information ☆Restaurant Opera House
☆Products and Corporate Image Introduction ☆Electronic Games
★Automated Aviation System ★Forces
★Three Gold Project
Karaoke Computerized Singing and Ordering System Shopping Mall Guidance System Postal Service and Zip Code Enquiry
Library Enquiry System Medical Guardianship System Securities Trading Enquiry System
Real estate sales system Leadership office system Bank query system
Decision-making command system ATM ATM handwriting input and handwriting signature identification
Early childhood education Airport and station query Insurance business query
Tax information query General Assembly information query Hotel management and lobby query
Touch screen application software matured in the domestic market Application Software
Telecommunication Bureau Charge Query System Museum Guiding System Underground Pipeline Gas Overhaul System
Post and Telecommunication Business Query System Tourist Attractions Guiding System Underground Cable Overhaul System
Electricity Bureau Electricity Charge Query System City Comprehensive Information Query System Large Warehouse Checking System
Bank Public Business Query System Archive Bureau Information Query System Laws and Regulations Query Software
Taxation Bureau Leadership Query System Personnel Query System Patent Query Software
Government Chief Economic Information Query System Talent Bridesmaid Query System Trademark Query Software
Banks Leadership Information Query System Karaoke System Industry and Commerce Bureau Business Registration Query Software
NPC and CPPCC Economic Information Query System Public Security Household Register Query System Library Query System Library Query Software
Exhibition Guide System Public Security Criminals Wanted Query Art Museum Query Software
Mall Shopping Guide Query System Enterprise Leadership Information Query System Enterprise Finance Query Software
Sports Competition Information Query System Military Combat Command System Insurance Business Query Software
Hotel Lobby Information Query System Hospital Guide System Enterprise Inventory Query Software
Airport Traffic Information Query System Hospital Outpatient Query System Customs Business Query Software
Train Frequency Query System Securities Information Query System Real Estate Sales System
Large Building Complex Guide Query System Golf Guide System Automobile Sales Software
Corporate Image Display System Harbor Guiding System
Project Application
VldeoTex Visual Graphic Automobile G1S Navigation System
Machine Tool Control Handwriting Chinese Character Recognition System
Electric Power Dispatch Command ATM ATM
Metallurgy Dispatch Command Medical Instruments
Fire Fighting Equipment Control Petrochemical Simulation Control Equipment
Restaurant Ordering Gaming Machines
Telecommunications Bureau 114 number search desk Factory simulation training system
Telephone Bureau switchboard control Bowling alley scoring system