Touch Screen and Interactive technology

Our newest interactive displays are simple to use and have many exciting applications. The Multi Touch Screens are available from 32" to 82"
The range of Infrared Multi Touch Screen Displays include mountable units that can be used in both landscape and portrait modes.
They come with a flat wall mount as standard but can be mounted from ceilings or floor stands.

The displays use an infrared multi touch screen system which is ideal for public locations as a finger, gloved hand, pen or stylus can be used to interact.
Activating the screen requires no pressure so will incur less damage over time. Unlike capacitive touch screens, infrared touch screens do not require any glass patterning. Not only does this improve optical clarity, it also increases its durability.
The Multi Touch Screen Displays’ protective glass has a Mohs hardness rating of 7, giving it the same hardness as Quartz.

Applications include :

• Shopping centres
• Hospitals
• Schools
• Airports
• Train/bus stations
• Cinemas
• Hotels
• Sports arenas
• Office buildings
• Leisure centres
• Show rooms
• Quick service restaurants

Specifications:

• Unit Size (WxHxD mm)              :  depends on size of display -
• Display Area (mm)                     :  depends on size of display -
• Aspect Ratio                                :  16:9
• Resolution                                   :  Full HD 1920 x 1080 (1336 x 768 on 32")
  
• Brightness (cd/m2)                    :  450
• Contrast Ratio                             :  5000:1 typ
• Viewing Angle                              :  178°
• Colour                                           :  16.7M
• Response Time (ms)                :  8
• Life Time (hours)                        :  50000
• Power Consumption (W)          :  120
• Inputs                                            :  VGA, HDMI, DVI, YPbPr, Video IN, RGB/HV
• Outputs                                         :  Video, Audio
• Touch Resolution                        :  4096×4096
• Operating System                       :  Windows7, Windows2000/XP/2003/Vista/CE
• Response Time (ms) =             :  16
• IR Power                                       :  <2W
• Typical Accuracy (mm) =            :  5.2
• Voltage                                          :  +4.75VDC-5.25VDC
• Operating Temperature              :  -20°to 60°
• Storage Temperature                  :  -40°to 70°

A quick Introduction to Touch Technology

Touch screens developed with the advent of computer displays. The first touch screen was developed at Honeywell when a series of Plexiglas bars were installed over the terminal, and when one of them was pushed, a micro switch was closed to indicate which row had been touched.

A transparent version of this, a matrix touch panel, was developed by Sierrac in Transflex and first successfully commercialized as part of an automated chess game. Around the same time the infrared touch system was in  development at the University of Illinois, the resistive touch sensor at Oak Ridge laboratories (and first commercialized by Control Data Corporation with the Plato project), and the zone capacitive as a venture product in Minnesota.

Later, Zenith developed the surface acoustic wave (SAW), and Touch Technology commercialized the first analog capacitive touch sensor. These are the commercially successful products;
however, there are hundreds of other patented technologies for sensing touch.

From an end‐user standpoint, touch screens offer unparalleled ease of use, speed, and accuracy, drastically reducing the time required to learn new applications or acquire proficiency with handheld devices. For developers, designers, and users, durability is an added benefit: keyboards are more easily damaged by environmental hazards, such as liquids.
Since keyboards are fully exposed, they are more vulnerable to abuse. Mice and other pointing devices also are impractical in many environments; they are fragile, susceptible to dust and liquid, and can contribute to repetitive‐motion injuries.
A recent industry report reveals that keyboards are the most common device to break in kiosks. In comparison, incidents of touch screen failure are rare; the lifecycle of a touch screen can be measured in years, far longer than the useful life of most keyboards and mice.

Registering the Touch

Most end users are unaware of minor distinctions among the various touch systems they encounter.
Resistive touch is pressure sensitive and can use any finger, pen screwdriver, fingernail, or other probe to activate it.
Infrared also registers most probes (except those that are very narrow (less than 1/10 of an inch, as is the case with some pens).
Capacitive will not “trigger” unless there is body contact, so gloves and pencils will not work.

Capacitive and projective capacitive are capable of registering the lightest touch and are essentially well adapted to “swishing” for applications such as lottery or gambling machines. Surface acoustic wave must have a soft, absorbent touch, so pens and finger nails will not work.
Depending upon the resolution of a matrix panel touches between active touch zones may not register.
Sometimes, especially in the case of pen entry systems, it is necessary to discriminate between a finger, palm or hand, and a stylus. Once again, only an analog resistive system is able to make the distinction.