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Choosing a Touch Screen Display

Touch screens have been with us since the early 1970’s but it has only been in the last few years that the technology has expanded into personal applications as well as business.

Traditionally touch screen displays were expensive and only to be found in industrial applications but recent advances and falling cost of technology has meant that the touch screen display is now in everything from the mobile phone and pocket computer to ATM machines and information points.

Touch screens work in one of a number of ways from using infrared to detect the heat of a finger to the more accurate resistive and capacitive touch screens that use an electrical field.

Touch screens have an obvious advantage over conventional monitors in that using a graphical user interface (GUI) and touch screen means that the display can act as both an input and output device so there is no need for a separate keyboard and mouse and their associated wires.

In selecting a touch screen display several questions need to be asked – what tasks will the display be used for, how clear does the monitor need to be, what environment will it be placed in and how responsive does it need to be?

In an industrial environment where the display may have to endure contaminants such as grease, dirt and dust or suffer the risk of getting wet then a sealed capacitive touch screen would be the best option. These are very durable and rugged and many of are manufactured for water and dust resistance (IP56 and IP65).

When more clarity is required from the screen (most touch screens have less illumination than conventional monitors) such as for surgical or medical use then surface wave panel-based touch screen is the better option. These use ultrasound to identify when they are touched and can easily be damaged but they offer better clarity and optical accuracy than other systems.

If a touch screen display is to be left in a public area, unattended or outside then the simplest form of touch screen, the strain gauge, where the screen is spring mounted on the four corners and the movement is measured when the screen is touched, is by far the most durable touch screen display. While they are not as responsive as other types of touch screen they are often used when there is a risk of vandalism.

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 displays or other industrial display solutions.

Choosing a Touch Screen Display / Author: Richard N Williams

Occupation: writer
Richard N Williams is a technical author and a specialist in the telecommunications and network time synchronisation industry helping to develop dedicated time server products. Please visit us for more information about a GPS time server or other NTP server products.
http://www.armagard.co.uk

Maximizing the Use of Lexmark Ink Cartridges for Printing

There are several factors to consider in choosing the best inkjet cartridge for your inkjet printer. These include print quantity, expected print quality, print speed, features, paper type, and the printer to be used—that is, one should identify the need then choose the appropriate one among the different Lexmark inkjet cartridges available to suit that need.

Beginning in the early 90s

Lexmark started as one of IBM’s groups in 1991. Later on, the company went public and detached itself from IBM in 1995. In the process, it had to do away with all the IBM logos printed on its products such as the laser, dot matrix, and inkjet printers. Lexmark became the first company to release a printer in the market that costs below 100 USD. It also made history by being the first to develop printing in 4800 x 1200 and 3600 x 1200 dpi resolutions. Moreover, in the world of photo printing, it pioneered in developing a stand-alone photo printer. Today, reaching over 150 countries, Lexmark is known to be one of the key players in developing, manufacturing, and supplying different printing and imaging solutions including accessories such as inkjet cartridges and copiers. Their products are designed to cater to the varying needs of those customers at home, those running small enterprises, and up to those in large organizations.

Maximizing the use of your printer

In caring for your printer, you should take into consideration the quality of the inkjet cartridge you install. And there is no better solution than buying original Lexmark inkjet cartridges to suit your printing needs. Looking around, you may find lower-priced cartridges that claim to offer the same quality of printing. But keep in mind that once printer-ink compatibility is jeopardized, you are increasing the risk of damaging your printer. At first you may not feel the difference but the amount that you saved from buying the less-reliable cartridges may not be enough to cover the damages your printer may incur in the long run.

To maintain the level of performance of your inkjet printer, you should always install a compatible inkjet cartridge. With the quality and reliability of Lexmark inkjet cartridges, as backed up by the company’s history and reputation, it is the choice if you are going for the best.

Alan Wilson has over 10 years experience in the imaging industry and is a director of Cartridge Concept, supplier of printer ink for all Lexmark Ink Cartridges

Maximizing the Use of Lexmark Ink Cartridges for Printing / Author: Alan Wilson

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.

Touch screens 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 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. Touch screens are often built with durability in mind and many are resistant to industrial contaminants such as water, dirt, oil and grease.

Many touch screen 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.

Touch Screen 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 touch screen 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 touch screens, capacitive systems, infrared and surface acoustic wave technology. The types of touch screen
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 touch screen 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.

Advantages of Industrial Touch Screen Monitors / Author: Richard N Williams