What To Look For In A Touch Screen Monitor

Are you trying to find a touch screen monitor that is right for you, but do not know what to look for?

Resistive Touch Screen Monitor

First things first, what does a touch screen monitor/display do?

Resistive Touch Screen Monitor

A touch screen monitor is a unique display that can be used as a replacement for a mouse and keyboard. It saves desk space and provides a great way for homes and businesses to use an intuitive interface for anything from checking the weather to ordering food. Touch screen monitors vary in technology. The sensors, resolution, contrast, and display ratio should all be considered before purchasing a touch screen monitor.

Now what do I look for in touch screen display/monitors?

Well let's take a look at an example of a generic 15 inch touch screen monitor.

Technical Specifications:

Display type: 15" LCD TFT flat panel display (This is the size of the monitor witch is 15 inches across)

Touch screen type: 5 Wire Resistive (5-Wire is the amount or wires running through the screen, which means high touch resolution, It is not affected by dirt, dust, water, or light)

Display resolution: 1280 X 1024 (SXGA) (The resolution of size of how many pixels across or down, bigger is better)

Color support: 24-bit (16.2M) (The amount of color being produced, 24-bit is the minimum for a true color display)

Pixel pitch: 0.279mm (H) x 0.279mm (V) (Describes the distance, for example, between dots of the same color on the inside of a display screen.)

Max sync rate: 75Hz (A standard used to sync or connect signals to a computer)

Response time: 8ms (The time that it takes from when you touch the screen to when it responds)

Aspect ratio: 4:3 (The ratio of height and width of the display, widescreen is 16:9)

Brightness: 250cd/m2 (The rating of brightness of the monitor, for a touch screen 250 to 350 is optimal.)

Contrast: ratio 450:1 (A high contrast ratio is a desired aspect of any display, the higher the ratio the more clear the screen will be.)

Max V-view: 130° (The maximum angle that you are able to view content clearly.)

Dimensions: (W x H x D) inches 14.05"(W) x 13.54"(H) x 8.26"(D) (Width x Height x Depth of the monitor.)

Power: supply Internal (this saves desk space when the power supply is incorporated inside the monitor)

Power consumption / Standby: 30 Watt / 2 Watt (how much power the touch screen is going to use when turned on and when on standby).

What To Look For In A Touch Screen Monitor

Resistive Touch Screen Monitor

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Advantages of Industrial Touch Screen Monitors

Touch screen technology has been with us since the early 1970s and have become increasingly popular in recent years with the advent of mobile phones and pocket computer systems.

Resistive Touch Screen Monitor

Touchscreens are now everywhere with ATMs, ticket machines and information points utilizing them. They are a key asset in industrial computing too as touch screen monitors offer certain advantages over conventional computer screens.

Resistive Touch Screen Monitor

The most obvious advantage of touch screen monitors is that they act as both an input and output device. Using a graphical user interface (GUI) there is no need for a separate monitor, keyboard and mouse as the touch screen monitor acts as all three.

In industrial applications, touch screen monitors also have the advantage of being more robust than a conventional CRT (cathode ray tube) or LCD monitor. Touchscreens are often built with durability in mind and many are resistant to industrial contaminants such as water, dirt, oil and grease.

Many touchscreen monitors boast IP65 and NEMA 4 ratings allowing the monitors to be washed-down and protected against, electrical surges, physical impact, temperature extremes, theft, tampering and airborne debris.

Touchscreen monitors can also reduce the size of a computer system, without separate peripherals and all those wires, they can also be mounted on walls or on the back of machines.

They can also be house in industrial computer enclosures - these afford added protection from spillages, knocks, bangs and even explosive atmospheres. Many touchscreen devices are used where standard computer equipment is just not practical such as when a machine is positioned outside or left unattended.

There are different technologies behind touch screen monitors such as resistive touchscreens, capacitive systems, infrared and surface acoustic wave technology. The types of touchscreen
Differ in their efficiency at reading a touch and the clarity of the monitor. Some of the systems are also more susceptible to scratches and contaminants.

In selecting a touchscreen the most important things to remember is where the screen will be placed, what applications it will be used for, how durable does it need to be and how clear or bright does the monitor have to be.

Advantages of Industrial Touch Screen Monitors

Resistive Touch Screen Monitor

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1939L Open Frame Touchscreen LCD Monitor - 19" - 5-wire Resistive - 1280 x 1024 - 5:4 Feature

• Elo chassis LCD monitors have a long-lasting product cycle because the enclosure is controlled by Elo specifications.
• Future panel improvements are therefore possible without external changes.

1939L Open Frame Touchscreen LCD Monitor - 19" - 5-wire Resistive - 1280 x 1024 - 5:4 Overview

Elo chassis LCD monitors have a long-lasting product cycle because the enclosure is controlled by Elo specifications. Future panel improvements are therefore possible without external changes. The 1939L features a wide viewing angle panel along with a unique, injection-molded minibezel and virtually invisible watertight seal.

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Planar PT1700MX-BK 17-Inch 5-Wire Resistive Touch Screen Analog LCD Monitor with Dual USB/Serial Controller with 5-90 degrees Tilt (Black)

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Planar PT1700MX-BK 17-Inch 5-Wire Resistive Touch Screen Analog LCD Monitor with Dual USB/Serial Controller with 5-90 degrees Tilt (Black) Feature

• Recognizes touch input from a finger, gloved hand, credit card, pen or stylus
• Perfect for kiosk integrators, VARs and OEMs in healthcare, retail, POS or hospitality applications
• Dual serial/USB touch screen interface
• Solid, stable base with 5-90 degrees tilt range
• AC-DC dual power input for mounting flexibility

Planar PT1700MX-BK 17-Inch 5-Wire Resistive Touch Screen Analog LCD Monitor with Dual USB/Serial Controller with 5-90 degrees Tilt (Black) Overview

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Uses of Touch Screen Monitors

The touch screen monitor has been around almost as long as computers themselves. Invented in 1971 by Dr Samuel Hurst they have found a use in a wide variety of applications.

Resistive Touch Screen Monitor

The main advantage of a touch screen monitor is that it both acts as an input and output device. A single touch screen monitor can replace an existing CRT (cathode ray tube), plasma or LCD monitor and replace the keyboard and mouse too.

Resistive Touch Screen Monitor

Touch screen monitors work by a variety of different methods but the basic function of using a graphical user interface (GUI) that is sensitive to touch is fundamental to all approaches.

Recognising a person's touch is done by several methods, the most common being resistive, capacitive, infrared and acoustic wave.

Different methods are used for the different functions that a touch screen may be required to fulfill. For instance, resistive touch screens work by using conductive and a resistive metallic layers between a sheet of normal glass. An electrical current runs through the two layers and when a user touches the screen, interference in the electrical field is caused and the computer then calculates the coordinates.

Resistive touch screens are quite durable although they can be scratched which can reduce their efficiency but overall they are the most versatile system.

While surface acoustic wave technology used in some touch screens uses ultrasonic waves that pass over the panel. When the panel is touched, a portion of the wave is absorbed and this can be measured identifying the location of the touch. Unfortunately surface wave panels are easily damaged and contaminants on the surface will hinder its function but they offer a higher clarity than the resistive system making them better suited to laboratory work.

Capacitive touch screens that use an electrical charge that is soaked up when a user touches it rather than being resisted like a resistive system makes them more durable. Capacitive touch screens are therefore a mainstay of industrial computers because of their durability and their imperviousness to moisture, dirt and grease. Other touch screen technology including infra-red or strain gauge are used too but are less common.

Touch screens are a viable alternative to the standard monitor, mouse and keyboard assembly adding better durability and resistance to contaminants whilst also forgoing the need for wires and peripherals making them ideal for industrial or manufacturing purposes.

Uses of Touch Screen Monitors

Resistive Touch Screen Monitor

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1939L Open Frame Touchscreen LCD Monitor - 19" - 5-wire Resistive - 1280 x 1024 - 5:4 Feature

• Elo chassis LCD monitors have a long-lasting product cycle because the enclosure is controlled by Elo specifications.
• Future panel improvements are therefore possible without external changes.

1939L Open Frame Touchscreen LCD Monitor - 19" - 5-wire Resistive - 1280 x 1024 - 5:4 Overview

Elo chassis LCD monitors have a long-lasting product cycle because the enclosure is controlled by Elo specifications. Future panel improvements are therefore possible without external changes. The 1939L features a wide viewing angle panel along with a unique, injection-molded minibezel and virtually invisible watertight seal.

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How the Touch Screen Monitor Works

There are three commonly used types of touch screen technologies:

Resistive Touch Screen Monitor

Resistive Capacitive Surface acoustic wave

Resistive Touch Screen Monitor

1. The resistive type uses a normal glass panel, that is covered by a resistive and a conductive metallic layer and a protective layer (scratch resistant) on top of all this. When you touch the screen, the two metallic layers are joined and the change in electrical field is detected. The circuit on the monitor then calculates the coordinates and transfer them to the touch screen software. Touch screen driver transfers the information about the coordinates to the OS, in a form of events similar to mouse clicks and drags.

This system registers a touch event as soon the surfaces are joined. This means, you can use a finger, a pen or any other item as input. This also makes it most vulnerable to physical damage by sharp objects. The metallic layers only transmit about 75% of the light from the monitor, making its display clarity the lowest of the three.

2. With the capacitive type, a layer storing electrical charge, is placed on the monitor glass. When you touch the layer, a small amount of the electrical charge is transferred to you, decreasing the charge on the layer. Sensors, located at the corners of the monitor, detect a change in electrical charge levels and transfer the information to the touch screen software to process.

The biggest advantage of capacitive type over resistive is that it has 90% light throughput, while the resistive. This gives the capacitive touch screen monitors a much clearer picture. Since this type uses electric charge to detect a touch event, you must use a conductive input, such as a finger.

3. The surface acoustic wave type uses two transducers and a reflector, all placed on the monitor glass plate. One transducer is sending electrical signals to the other and the reflector reflects this signal.

The receiving transducer is capable of detecting and locating any touch event. Since this type has no metallic layers placed on the display surface, they have 100% light throughput, and therefore the most clear picture. Similar to resistive, this type detects touch events by almost any object, except very small or hard items, such as a pen.

These are just the most commonly used types. There are many other touchscreen technologies out there, such as strain gauge configuration (from 1960's) or relatively-modern optical imaging technology. And new ones are being developed as we speak.

Touchscreen technology has seen a lot of progress during the last few years.

The iPhone has made a revolution in hardware as well as touch screen software. And surveys are showing significant rise in demand for touchscreens computers, for users of laptops, as well as desktop computers.
Perhaps, the time to put the mouse away, is finally coming.

How the Touch Screen Monitor Works

Resistive Touch Screen Monitor

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Elo 1928L Touchscreen LCD Monitor - 19-Inch - 5-wire Resistive - 5:4 - Beige

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Elo 1928L Touchscreen LCD Monitor - 19-Inch - 5-wire Resistive - 5:4 - Beige Feature

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Elo 1928L Touchscreen LCD Monitor - 19-Inch - 5-wire Resistive - 5:4 - Beige Overview

Elo Touch Systems 1928L Touchscreen LCD Monitor E313143 Touch Screen Monitors

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Lilliput 7" Um-70t Usb Power on Touch Screen Monitor

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Lilliput 7" Um-70t Usb Power on Touch Screen Monitor Feature

• Screen Resolution: WVGA(800×480),
• Touch Panel?4-wire resistive,
• Contrast:500:1,Brightness:250cd/m²,
• Aspect Ratio: 16:9,Input Power: USB(DC 5V),
• Power Consumption: ?4.5W.

Lilliput 7" Um-70t Usb Power on Touch Screen Monitor Overview

MODEL NUMBER :UM-70TAbstract? 7" USB Touch Screen Monitor, Not DC Power, Just USB Powered, Not VGA Input, Just USB Input .Product Feature:NOT DC power, just USB PoweredNOT VGA input, just USB Input,Slimmer, less weight, 288g only!One cable does it all!Innovation USB-only connection---add monitors without adding clutter!A USB Powered Monitor as Multiple Input/Output Device for Video Conference, Instant Messaging, News, Photo Frame and Stock Casting, etc.How to use it?Installing Monitor Driver (AutoRun);Click on display setting icon on system tray and see the menu;Setup menu for Screen Resolution, Colors, Rotation and Extention, etc.OS:Windows 2000 SP4/XP SP2/Vista 32bit, UM-70 is great for use with a small laptop or netbook because of its light weight and single USB connection, it can travel with your laptop, no power brick needed!General ProductivityOutlook/Mail, Calendar or Address Book applications up all the timeView Widgets for To-do's, Weather, Stock Tickers, Dictionary, Thesaurus, etc.Track System Performance, Monitor Network Traffic, CPU cycles,EntertainmentHave your media player up to control entertainmentQuick access to important toolboxes for online gamingUse it as a secondary display for computers hooked up to TVsRun a 2nd or 3rd display without the need for a new graphics card,SocialSKYPE/Google/MSN Chat while using other full screen applicationsWatch for Friends on Facebook and MySpaceKeep your Twitter Client up all the time but off your main work screen;Screen Resolution: WVGA(800×480),Touch Panel?4-wire resistive,Contrast:500:1,Brightness:250cd/m²,Aspect Ratio: 16:9,Input Power: USB(DC 5V),Power Consumption: ?4.5W,Dimension(LWH):188×123×23.5mm/25.8mm?with touch panel?,Weight:288g/ 405g?with touch panel?,USB Cable 1 PieceDriver Disk 1 PieceTouch Pen 1 Piece Operation Manual 1 Piece

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What's Touch Screen Monitor?

Touch screen monitor is a type of display screen that has a touch-sensitive transparent panel covering the screen. Instead of using a pointing device such as a mouse or light pen, you can use your finger to point directly to objects on the screen.

Resistive Touch Screen Monitor

The benefits of such technology are obvious. Rather than lugging along extra input devices such as a mouse or a keyboard, the user need only his finger to manipulate the chosen device. But it's not just mobile devices that benefit from this type of input. All kinds of devices can be equipped, including TV and computer monitors, LCD screens, and the older CRT computer monitors. As a result, a bartender can press on a screen to ring up drinks on a busy night rather than type in a price, a nurse can input patient information with one hand. Truly, the possibilities with touch screen monitors are endless.

Resistive Touch Screen Monitor

Touch screen monitors usually come in three varieties that enable it to recognize a person's touch. These are resistive, capacitive and surface acoustic wave. The resistive type works by having two panels with a thin space between them. When the user presses the screen, the two panels touch at that point, and the exact coordinates are then registered with the computer.

A capacitive system runs a small electrical charge throughout the touch screen. When the user touches the chosen area, some of the electrical charge is distributed to the finger, lessening the charge at that location. The coordinates are again recorded and sent to the computer. This type of touch screen produces a clearer picture because it transmits more light and doesn't require two panels.

Finally, the surface acoustic wave system is the best, and results in the clearest picture. Transducers are used to send electrical signals across the screen, and if a user touches the screen, they can determine where based on how the electrical signal is received from one transducer to the other.

Since the capacitive system must have a finger to absorb electricity, most non-living objects won't register as a touch. Resistive and surface acoustic wave systems on the other hand react to just about any form of pressure. Each has its different advantages as a result, and manufacturers will only find new ways to make use of them.

Finally, although touch screens provide a natural interface for computer novices, they are unsatisfactory for most applications because the finger is such a relatively large object. It is impossible to point accurately to small areas of the screen. In addition, most users find touch screens tiring to the arms after long use.

What's Touch Screen Monitor?

Resistive Touch Screen Monitor

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Lilliput 7" Um-70t Usb Power on Touch Screen Monitor Feature

• Screen Resolution: WVGA(800×480),
• Touch Panel?4-wire resistive,
• Contrast:500:1,Brightness:250cd/m²,
• Aspect Ratio: 16:9,Input Power: USB(DC 5V),
• Power Consumption: ?4.5W.

Lilliput 7" Um-70t Usb Power on Touch Screen Monitor Overview

MODEL NUMBER :UM-70TAbstract? 7" USB Touch Screen Monitor, Not DC Power, Just USB Powered, Not VGA Input, Just USB Input .Product Feature:NOT DC power, just USB PoweredNOT VGA input, just USB Input,Slimmer, less weight, 288g only!One cable does it all!Innovation USB-only connection---add monitors without adding clutter!A USB Powered Monitor as Multiple Input/Output Device for Video Conference, Instant Messaging, News, Photo Frame and Stock Casting, etc.How to use it?Installing Monitor Driver (AutoRun);Click on display setting icon on system tray and see the menu;Setup menu for Screen Resolution, Colors, Rotation and Extention, etc.OS:Windows 2000 SP4/XP SP2/Vista 32bit, UM-70 is great for use with a small laptop or netbook because of its light weight and single USB connection, it can travel with your laptop, no power brick needed!General ProductivityOutlook/Mail, Calendar or Address Book applications up all the timeView Widgets for To-do's, Weather, Stock Tickers, Dictionary, Thesaurus, etc.Track System Performance, Monitor Network Traffic, CPU cycles,EntertainmentHave your media player up to control entertainmentQuick access to important toolboxes for online gamingUse it as a secondary display for computers hooked up to TVsRun a 2nd or 3rd display without the need for a new graphics card,SocialSKYPE/Google/MSN Chat while using other full screen applicationsWatch for Friends on Facebook and MySpaceKeep your Twitter Client up all the time but off your main work screen;Screen Resolution: WVGA(800×480),Touch Panel?4-wire resistive,Contrast:500:1,Brightness:250cd/m²,Aspect Ratio: 16:9,Input Power: USB(DC 5V),Power Consumption: ?4.5W,Dimension(LWH):188×123×23.5mm/25.8mm?with touch panel?,Weight:288g/ 405g?with touch panel?,USB Cable 1 PieceDriver Disk 1 PieceTouch Pen 1 Piece Operation Manual 1 Piece

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The Characteristics and Applications of Touch Screen Monitors

The system of touch screen monitor was invited in 1971 by Dr. Samuel. It set off an upsurge since it was available in the market. Some devices are designed with touch screen which is very convenient, such as automatic teller machines, ticket machines and phones.

Resistive Touch Screen Monitor

The phones with this system are most popular among all the devices. People tend to acquire more information within less time. Smart phones with this system meet their needs. It is larger than the ordinary screen, which make it ideal to play game or watch a film. This system on the phone is also suitable to the old people who can not type the words with keyboard, but they can send a short message with the stylus. Owning a touch screen phone can make you fashion and confident.

Resistive Touch Screen Monitor

In order to reach the goal of simple operation, the mouse and keyboards are replaced by the device in some contexts. When the machine is under working condition, we touch the touch screen with our fingers or other objects, and then it will input the information according to the icon we touched or the menu position. A touch screen is consisted of detection device and controller. The detection device is fixed in front of the display screen, which is applied to check the position that the user touched and deliver it to the controller after reception. The controller is used to receive the touch information and transmit to the CPU; meanwhile, the controller can receive and compliment the instruction from CPU.

It can be divided into four different kinds according to its operation principle and the media for delivering information. The types of touch screens are resistive, capacitive, infrared and acoustic wave.

Resistive systems are the most versatile; however, the multiple layers prevent the monitor conveying the light, and the screens are easily scratched, while the capacitive systems accept transmitting more light by the monitor. The capacitive systems can withstand the humid, dirt environment, so it is suitable for the outdoor utilization. Surface acoustic is more accurate than the other systems, so it is ideal for the application in laboratory. Infrared touch screens are most durable and need more time to response.

All in all, each kind system has its own advantages and disadvantages. The key to understand the occasions that different devices are used is to know the characteristics and principles. The related integrated circuit for touch screen monitor is TA78M24S

The Characteristics and Applications of Touch Screen Monitors

Resistive Touch Screen Monitor

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Lilliput 7" Um-70t Usb Power on Touch Screen Monitor Feature

• Screen Resolution: WVGA(800×480),
• Touch Panel?4-wire resistive,
• Contrast:500:1,Brightness:250cd/m²,
• Aspect Ratio: 16:9,Input Power: USB(DC 5V),
• Power Consumption: ?4.5W.

Lilliput 7" Um-70t Usb Power on Touch Screen Monitor Overview

MODEL NUMBER :UM-70TAbstract? 7" USB Touch Screen Monitor, Not DC Power, Just USB Powered, Not VGA Input, Just USB Input .Product Feature:NOT DC power, just USB PoweredNOT VGA input, just USB Input,Slimmer, less weight, 288g only!One cable does it all!Innovation USB-only connection---add monitors without adding clutter!A USB Powered Monitor as Multiple Input/Output Device for Video Conference, Instant Messaging, News, Photo Frame and Stock Casting, etc.How to use it?Installing Monitor Driver (AutoRun);Click on display setting icon on system tray and see the menu;Setup menu for Screen Resolution, Colors, Rotation and Extention, etc.OS:Windows 2000 SP4/XP SP2/Vista 32bit, UM-70 is great for use with a small laptop or netbook because of its light weight and single USB connection, it can travel with your laptop, no power brick needed!General ProductivityOutlook/Mail, Calendar or Address Book applications up all the timeView Widgets for To-do's, Weather, Stock Tickers, Dictionary, Thesaurus, etc.Track System Performance, Monitor Network Traffic, CPU cycles,EntertainmentHave your media player up to control entertainmentQuick access to important toolboxes for online gamingUse it as a secondary display for computers hooked up to TVsRun a 2nd or 3rd display without the need for a new graphics card,SocialSKYPE/Google/MSN Chat while using other full screen applicationsWatch for Friends on Facebook and MySpaceKeep your Twitter Client up all the time but off your main work screen;Screen Resolution: WVGA(800×480),Touch Panel?4-wire resistive,Contrast:500:1,Brightness:250cd/m²,Aspect Ratio: 16:9,Input Power: USB(DC 5V),Power Consumption: ?4.5W,Dimension(LWH):188×123×23.5mm/25.8mm?with touch panel?,Weight:288g/ 405g?with touch panel?,USB Cable 1 PieceDriver Disk 1 PieceTouch Pen 1 Piece Operation Manual 1 Piece

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Planar PT1975R LCD Touchscreen Monitor - 19" - 5-wire Resistive - 1280 x 1024 - 0.294mm - Black

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Planar PT1975R LCD Touchscreen Monitor - 19" - 5-wire Resistive - 1280 x 1024 - 0.294mm - Black Feature

• PLANAR SYSTEMS 997-5973-00 PT1975R 19 BLACK 5-WIRE RESIS

Planar PT1975R LCD Touchscreen Monitor - 19" - 5-wire Resistive - 1280 x 1024 - 0.294mm - Black Overview

The PT1975R black 19" touch screen monitor is perfect for use in healthcare, retail, point-of-sale and hospitality applications. Easily integrated with a variety of POS, thin client or PC systems, the monitor features a 5-wire resistive touch screen and dual serial/USB touch screen interface. No drivers are needed for basic touchscreen operation, but for advanced features, drivers are quickly loaded using the easy to follow, step-by-step instructions. Users may use a finger, gloved hand, credit card, pen or stylus to activate the resistive touch screen. The user can also easily adjust the monitor from -5° to 90° based on preference. The OSD buttons are located on the side of the monitor to minimize setting changes. The OSD buttons can also be locked for customer-facing applications. It also comes with both analog and DVI-D input options.

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LILLIPUT 7" UM-70/C/T MINIUSB TOUCH SCREEN MONITOR

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LILLIPUT 7" UM-70/C/T MINIUSB TOUCH SCREEN MONITOR Feature

• Screen Resolution: WVGA(800×480)
• Touch Panel?4-wire resistive
• Contrast:500:1
• Brightness:250cd/m²
• Aspect Ratio: 16:9

LILLIPUT 7" UM-70/C/T MINIUSB TOUCH SCREEN MONITOR Overview

MODEL NUMBER:UM-70/C/t7" mini USB monitor ,touch screen.?It's perfect for your IM client, a spreadsheet, photo, Email or video.?Rotating Portrait or Landscape view.?Mac (Intel only), Windows XP, Vista and Windows 7 driver support?Display size - 7"?Screen Resolution: WVGA(800×480)?Contrast:250:1?Brightness:350cd/m²?Aspect Ratio: 16:9?Connections - USB 2.0?Input Power: USB(DC 5V)?Power Consumption: 2W-4.5W

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Types of Industrial Touch Screen Monitors

Dr. Samuel C. Hurst invented touch screen monitors in 1971 and since then they have become increasingly popular, particularly in commercial computing such as ATMs and ticket machines and also in mobile phone and PDA technologies.

Resistive Touch Screen Monitor

Touch screen monitors combine both an input and output device, minimizing the need for separate peripherals like keyboard, mouse and monitor. Instead a user merely has to touch the monitor with either a finger or sometimes a stylus at manipulate the graphical user interface.

Resistive Touch Screen Monitor

Touch screen monitors use one of a number of technological systems to recognize a person's touch the most common being resistive, capacitive, infrared and acoustic wave.

Resistive touch screens are the most versatile, they consist of a normal glass plate that is covered with both a conductive and a resistive metallic layers. The two layers are spaced apart and an electrical current runs through them while the monitor is running. When a user touches the screen, the layers make contact in that exact spot causing interference in the electrical field, the computer then calculates the coordinates.

The only downsides to this system are that the multiple layers restrict about a quarter of the light transmitted by the monitor and they can also be easily scratched which reduces their efficiency.

The capacitive system differs by having a layer that stores an electrical charge placed on the glass panel of the monitor. When someone touches the panel, some of the charge is transferred to the user, so the overall charge on the layer decreases, this can be measured by circuits and calculated by the computer as to where the touch took place. The capacitive system also allows a lot more light to be transmitted from the monitor than the resistive system.

Capacitive touch screens are a lot more durable and resistant to contaminant than the resistive system. They are a more popular for industrial and outdoor applications because of their durability and their imperviousness to moisture, dirt and grease.

Surface acoustic wave technology uses ultrasonic waves that pass over the touch screen panel. When the panel is touched, a portion of the wave is absorbed, like the current in a capacitive system and this can be measured identifying the location of the touch.

Surface wave panels can be easily damaged and contaminants on the surface will hinder its functionality but it offers higher clarity and optical accuracy than the other systems.

Infrared touch screens employ two different methods. One measures warmth of a person's touch to the surface layer. This method requires warm hands and users cannot wear gloves or use a stylus. Another method is to use a light beam near the surface of the screen the infrared is used to measure when that light beam is broken by touching the monitor. IR touch screens are the most durable but can be slow to respond.

Other systems include strain gauge, where the screen is spring mounted on the four corners and the movement is measured when the screen is touched. This technology is heavily durable and resistant to vandalism.

Types of Industrial Touch Screen Monitors

Resistive Touch Screen Monitor

Elo 1715L LCD Touchscreen Monitor - 17-Inch - 5-wire Resistive - 1280 x 1024 - 5:4 - Dark Gray

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Elo 1715L LCD Touchscreen Monitor - 17-Inch - 5-wire Resistive - 1280 x 1024 - 5:4 - Dark Gray Feature

• LCD Touchscreen Monitor
• 17-Inch - 5-wire Resistive

Elo 1715L LCD Touchscreen Monitor - 17-Inch - 5-wire Resistive - 1280 x 1024 - 5:4 - Dark Gray Overview

1715L 17IN ACCUTOUCH DUAL SER/USB CTLR GRAY

Available In Stock.

Industrial Touch Screen Monitors

As the name suggests, touch screens are touch sensitive units that are controlled by touching the screen. That means you can manipulate the display with a finger or with a stylus. Touch screen is basically a method of inputting and displaying data from a computer on the same screen.

Resistive Touch Screen Monitor

Touch screen has gained acceptance as the popular choice for enterprises ranging from restaurants to medical centers. The highlights of touch screen technology include outstanding clarity coupled with high durability.

Resistive Touch Screen Monitor

The four common touch screen technologies include the resistive, capacitive, infrared and acoustic wave. Resistive touch screen is the most versatile of these technologies, and it finds wide applications in communication devices, food services and industrial process control and instrumentation, to name a few. For the Capacitive touch screen, the salient feature is its resistance to scratching. Capacitive touch screens are extremely durable and contaminant resistant. They are a popular choice for industrial applications, such as ATM, industrial equipment and gaming machines. You can operate them with a finger or a stylus and they are ideal for outdoor locations because they are impervious to moisture, dirt and grease. Acoustic Wave technology finds high acceptability in medical applications because of its high optical clarity and accuracy.

Before deciding which technology meets your requirements, do a thorough analysis of your business application needs. You'll need the help of professionals who can guide you about the advantages and disadvantages of each technology.

One thing to consider before your purchase is the possibility of contamination since the finger usually operates the monitors. For this reason, manufacturers also provide a stylus along with the monitors. You may prefer to operate the monitors using gloves or a stylus.

Industrial Touch Screen Monitors

Resistive Touch Screen Monitor

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Elo 1000 Series 1515L LCD Desktop Touchscreen Montior - 15-Inch - 5-wire Resistive - 1024 x 768 - 4:3 - Dark Gray Feature

• 1515L 15 LCD ACCUTCH DSKTP COMBO D GRY ROHS

Elo 1000 Series 1515L LCD Desktop Touchscreen Montior - 15-Inch - 5-wire Resistive - 1024 x 768 - 4:3 - Dark Gray Overview

Elo Touch Systems 1000 Series 1515L LCD Desktop Touchscreen Montior E210772 Touch Screen Monitors

Available In Stock.