Benefits Of Infrared Touch Screen Technology
Besides IR touch, resistive touch and capacitive touch in today&#;s market are also mature technology, which performs stably.
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Resistive or capacitive touch screen technology exists even longer than IR touch screens.
But, why do engineers choose IR touch screen for interactive whiteboards, which are widely used for business meetings and distance learning? Here are some benefits of infrared touch screens.
* Economical option &#; compared to other touch screens, the cost of IR touch screens is relatively cheap in large size.
* Better display &#; without other substance between the LCD and overlay, IR touch screens offer the best light transmission, so they can render more vivid images without color and brightness loss.
* Supports multi-touch &#; with windows and android 9.0 double OS, it can support as many as 40 touch-points simultaneously. That means it can support up to 4 students interacting together on an interactive touch display.
* Short response time &#; commonly less than 8ms, IR touch screens localized touch events by detecting light interruption, so they are accurate and quick to respond with actions.
* Better writing experience &#; its overlay is often a piece of tempered glass, and it is smooth to write on it.
* Free of scratches &#; since the LCD monitor is protected by glass overlay, you can rest assured that there will no scratches problems
* More flexible in customizing screen sizes &#; by adjusting the numbers of LEDs and photo-detectors embedded in the overlay frame, you can fit any custom-made monitor with an infrared touch interface
* Maintenance &#; there is no adhesive substance between the monitor and overlay, so you can disassemble the two parts freely by releasing a few screws when doing regular maintenance, such as cleaning the surface, and wiping dust.
* Clear images &#; compared with many camera or projector-based systems, equipment with IR touch screens often adopts backlight LED. So, wherever the lighting environment they perform in, they can provide clear images to the audience.
* 4K resolution &#; they can support 4K resolution screens and work well with high-pixel monitors
* No loss of screen display &#; Since LEDs and sensors are designed to be fixed in the frame that is around the monitor, the screen can display an unrestricted view.
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* Write with any object &#; you can write on an IR touch screen with anything, a bare finger, a gloved finger, wet hands, or a pen, as long as it is not transparent.
* No calibration &#; a traditional smart projector board may require regular calibration to display correct pictures, however, devices with IR touchscreen do not need to calibrate the IR LEDs and sensors to guarantee a normal function.
* No pressure is required to write &#; Resistive touch screen technology perceives the writing track by pressure, which can damage the screen after a long time of usage, while IR touch screen technology by detecting light interruption, so you can write freely without having to push hard on the screen.
Touch screen technology has been with us since the early s and have become increasingly popular in recent years with the advent of mobile phones and pocket computer systems.
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.
The most obvious advantage of touchscreen 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.
Richard N Williams is a technical author and a specialist in the industrial computer industry helping to develop industrial computer enclosures and protection for all environments. Please visit us for more information about industrial touch screen monitors or other industrial monitors.
For more information, please visit medical infrared touch monitor.
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