Frequently Asked Questions
Q1: What are the primary
differences between Fremont industrial Display and other company display?
Q2: What is a “nit”?
Q3: What is the difference between
“high brightness” panels and true “sunlight readable” displays?
Q4: What is the typical time it takes
to ship a monitor once you receive my order?
Q5: What are your standard warranty
periods?
Q6: When repairing my monitor, how long
does it usually take?
Q7: How do I get an RMA form?
A1:
Fremont displays
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5 mm thicknessAluminum Front Panel
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Black Powder Coat or anodizing Finish
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Strong Steel rear housing
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Easy access to all major components for repair
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Includes Internal 115/220 VAC Power Supply. (15” and above)
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Can be provided with 12 or 24VDC option
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SIT Filter to reduce AC line transient noise. (15” and above)
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LCD is attached to the bezel via an engineered support channel
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17”& 19” units come standard with 4 different video inputs: HD15, DVI, RCA,
mini-DIN
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Optional BNC’s x5 for SOG, Combined or Separate Horizontal and Vertical Sync
(15” and above)
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Optional video boards for unique video timing
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All connectors and cable tie point are secured and glued
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More overall rugged design for vehicle applications or vibration sensitive
applications
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Multi aperture support channel to accommodate either touch or A/R window
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Membrane front or rear panel controls
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Stainless steel front bezel are available for all sizes
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Sheet metal parts consist of only 4 items: Front Panel, Support Channel, Rear
Cover & mount for brick power supp
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Support Channel provides for both a precision sized pocket for a Anti
reflection window or Touch in either Capacitive or Resistive or SAW
configuration
A2:
Basically….Luminance.
Photometric brightness is an old and deprecated term for
luminance. (Term of photometry)
The physical measure of brightness. Luminous intensity per unit
projected area of any surface, as measured from a specific direction.
Luminance (usually 'L' in formulas) is the amount of visible
light leaving a point on a surface in a given direction. This "surface" can be
a physical surface or an imaginary plane, and the light leaving the surface can
be due to reflection, transmission, and/or emission
Standard unit of luminance is candela per square meter (cd/m2).
(also called Nits in the USA, from Latin "nitere" = "to shine").
There are several older units of luminance:
| Apostilb (deprecated) |
1 asb = 1/pi cd/m2 |
| Blondel (deprecated) |
1 blondel = 1/pi cd/m2 |
| Candela per square foot |
1 cd/ft2 = 10.764 cd/m2 |
| Candela per square inch |
1 cd/in2 = 1550 cd/m2 |
| Footlambert (deprecated) |
1 fL = 3.426 cd/m2 |
| Lambert (deprecated) |
1 L = 104/pi cd/m2 |
| Nit |
1 nit = 1 cd/m2 |
| Skot (deprecated) |
1 skot = 10-3/pi cd/m2 |
| Stilb (deprecated) |
1 sb = 10'000 cd/m2 |
Typical luminance values are:
| 1.6 * 109 cd/m2 |
Solar disk at noon (don't look!) |
| 600'000 cd/m2 |
Solar disk at horizon |
| 120'000 cd/m2 |
Frosted bulb 60 W |
| 11'000 cd/m2 |
T8 cool white fluorescent |
| 8'000 cd/m2 |
Average clear sky |
| 2'500 cd/m2 |
Moon surface |
| 2'000 cd/m2 |
Average cloudy sky |
| 30 cd/m2 |
Green electroluminescent source |
| 0.0004 cd/m2 |
Darkest sky |
A3:
Regular color LCDs are not bright enough to ensure complete image clarity under
direct sunlight conditions. Many of our products are significantly brighter
than standard off-the-shelf LCDs making our products ideally suited for use in
any lighting environment. We build products to maximize brightness at the
lowest possible power consumption. These “actively” enhanced panels offer a
“white” color tone that closely matches normal sunlight and provides a crisp
image in any lighting condition. A wide dimming range provides various levels
of screen brightness, up to almost 2000 nits!!!
Other Fremont “sunlight” readable products take a different
“passive” approach. Utilizing advanced proprietary optical bonding technology;
we overcome optical challenges for the LCD user, at an affordable price. In a
wide assortment of applications, standard LCD displays in high ambient lighting
conditions appear to be "washed out" due to excessive reflection of ambient
light. Commercially available LCDs, especially when protected by a separate
cover glass or plastic shield, do not deliver enough brightness to make the
display functional in outdoors or in other high ambient light applications. Our
unique process results in a reduction of ambient light reflections compared to
other display enhancement technologies, at an affordable price.
We seal either a top cover glass or touch screen directly to
the face of the display. Our bonding process eliminates the air-gap between the
display and the cover glass, vastly reducing reflective light, which causes
visual washout of the display image. It also enhances structural integrity by
supporting the LCD cell with the cover glass. The bond provides shock
protection, and eliminates fogging caused by trapped moisture in the
air-gap.
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It provides the best reduction of ambient light washout of any commercially
available technology
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It has a lower cost than most other competing technologies
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It offers superior ruggedization, enhancing the display durability caused by
vibration, shock and other environmental extreme.
So, just because an LCD panel offers above normal brightness
(example 750-1000 nits), does mean it can be adequately viewed under direct
sunlight conditions.
A4:
We try to keep ample stock of major electrical components and associated metal
work, so typically, your order will ship within 2-3 days after receipt of your
purchase order or payment. Larger quantity orders such as 50-100 units may take
up to 30 days or so to complete.
A5:
One year on LCD flat panels.
A6:
As we offer several levels of service programs it usually depends on the type
of program chosen. For instance, totally rebuilding the monitor will take
approximately 5-7 days, while basic repair usually takes about 2-3 days.
A7:
To request an RMA form, please contact us at
rma@fremontdisplays.com,or make RMA Request
online.
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