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How To Choose The Best Sunlight Readable Monitor
The viewability of most LCD displays (as well as LED’s and plasmas) is severely limited in high ambient light conditions. When they are taken outdoors on a sunny day, the screen “washes out” so that only about 10% of it is visible to the human eye. This is due to the reflections off of 3 surfaces: the outer surface of the protective glass, the inner surface of the glass, and the surface of the LCD panel, as you can see below:
The most common solutions which will enable you to clearly see monitor images on a bright sunny day are Sunlight Readable Monitors and Optically Bonded Monitors.
Sunlight Readable Monitors employ more (or more powerful) backlights to increase the monitor’s brightness to 1,000+ nits. This added brightness is enough to “over-power” the ambient light and produce viewable images. However, the drawbacks of Sunlight Readable monitors are that they have greater power consumption, produce excess heat, and are more costly than standard LCD monitors.
Another approach is to use Optically Bonded Monitors. Optical bonding is the process of injecting a clear, optical-grade resin into the gap between the LCD panel and the protective outer glass, bonding them together. This fills the air gap between the two, eliminating two reflective surfaces. An Anti-Reflective coating is then applied to the outside of the protective glass, minimizing surface reflections.
The net result is a drastic reduction in reflections, increased contrast ratio, and a tremendous improvement in viewability in direct bright sunlight.
In addition to the obvious improvement in image quality outdoors, Optical Bonding also provides several other important benefits:
Improved ruggedness
Increased scratch resistance
Improved safety (less chance of broken glass)
Increased shock/vibration resistance
Prevents condensation/internal fogging
Optically Bonded LCD monitors are ideal for use in a wide range of industries and applications:
Transportation Pipeline Inspection
Navigation Drilling Rigs
Outdoor Kiosk Control Towers
Airplane Cockpits Ships/Boats
In summary, Optically Bonded monitors provide excellent image quality even in bright sunlight. They are more rugged and durable, and cost less than Sunlight Readable monitors.
Click here to see a VIDEO comparing standard LCD monitors, Sunlight Readable monitors, and Optically Bonded monitors on a bright sunny day. http://www.youtube.com/watch?v=s78KmJUyVeY
For information on specific Sunlight Readable and Optically Bonded monitor models, please visit the TRU-Vu Monitors website at www.TRU-VuMonitors.com/products/sunlightreadable.html
About the Author
TRU-Vu Monitors, Inc.
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