About JLT Products Environments Range of uses Solutions & benefits Investor Contact News Home
Climate and Temperature
Electricity
Vibration and Shock
Water, Humidity and Mud
Optical
Chemical Resistance

"A place in the sun" - Optical enviromments

Most computer users have experienced direct sunlight causing viewing problem, even for office computer users. The indoor user has options to shade or change the computers position to lessen the effects of sunlight and reflections, whereby improving the readability of the display. In many vehicles this is not an option as direct sunlight or reflections are nearly impossible to avoid.

Designers of mobile computers struggle with the trade-offs between daylight requirements and power/heat consumption of the unit. In addition, the display must offer a wide viewing angle and pleasant sights both in direct sunlight and in complete darkness.

Viewing from a small angle is crucial in order to look well
Wide viewing angles and significant increases in backlight technology have helped us make some of the best "daylight viewable" displays in the industry. Brightness levels are 2 to 3 times higher than standard laptop computers.

A wide viewing angle is important in many applications such as public safety, information kiosks, machine guidance and medicine. Certain applications require several people to view the screen at once, making a wide viewing angle critical. Viewing angles for our screens are normally 120 degrees

Night and day
Anti-reflective filters and high brightness backlighting makes our computers ideal for outdoor use. Direct sunlight, high or low ambient lighting is not a problem. We can incorporate transreflective technology into our computers resulting in “the stronger the light, the brighter the image.” These screens use reflective light in bright environments and transmissive backlighting in dark environments.

Dim ability
Another difficult task in display control is dimming because it is very difficult to obtain even brightness levels in all dimming levels across a display. This is the reason why many other computers have only one or two levels of dimming capability. The JLT solution supports dimming with 64 levels of luminance from complete dark to full bright.

Technical data

Luminance Typically 400 NIT
Luminance (high brightness) Min 750 NIT

Contrast ratio Typically 300:1
Dimability Typically 100-0 %
Viewing angle L/R Typically 120 deg.
Viewing angle U/D Typically 80 deg.
2010-08-02
JLT receives large order from the U.S.
JLT Mobile Computers AB, a leading manufacturer and developer of rugged computer solutions for the toughest environments, has in July received an order worth 35 million SEK. The order concerns vehicle-mounted computers which will be delivered in 2010. The end customer is a U.S. based world leading company.
Read more » 
2010-06-28
JLT Mobile Computers result in faster harbour logistics
JLT Mobile Computers AB, a leading manufacturer and developer of rugged computer solutions for the toughest environments, is providing in-vehicle computers to the Port of Norrkoping, Sweden. Part of a major new IT installation for the port, the JLT computers will speed up container handling by improving communications, container positioning and logistics. With the new system, forklift drivers quickly locate and identify the correct containers, truck drivers have less queuing, customer service levels are improved and operational costs are reduced.
Read more » 
2010-06-14
JLT Mobile Computers cuts lead time for rugged computers
JLT launches its new Off-The-Shelf (OTS) Concept today. This new service gives JLT’s customers access to immediate delivery of small to medium volumes of JLT’s computers in standard configurations.
Read more » 
2010-06-14
JLT Pumps up Tablet PC Performance with Intel Atomic Power and Windows 7
JLT started shipments of a brand new version of the JLT8404 Field Tablet PC. Designed and built in Sweden, this upgrade includes a number of technological innovations, including a new ultra-low voltage Intel® Atom™ processor. This energy-efficient chip runs at 1.6GHz, bringing much higher performance and enhanced 3D graphic capabilities for JLT8404 users. The unit is available today for immediate delivery in standard configuration.
Read more » 
JLT Mobile Computers AB, Isbjörnsvägen 3, SE-352 45 Växjö, SWEDEN, Phone: +46 470 53 03 00, Fax: +46 470 445 29, Email: mailbox@jltmobile.com - Sitemap