Dynamic Mobile Media LLC

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    Racine, Wisconsin 53406

    Telephone:

    262-788-6090

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All of the content on this web site, including but not limited to all text, visual displays, images, pictures. movies, videos and data ("Content"), is the exclusive property of Dynamic Mobile Media LLC, and is protected by United States and International Copyright Laws.

Any other use of the digital content on this web site is prohibited and protected by United States and International Copyright Laws, including  the unauthorized publication or distribution or reproduction, or modification  or transmission, digital republications, displaying creation of derivative works of Dynamic Mobile Media  LLC., client vehicles, or performance of the content, or any other use of the digital photographs, digital movies, videos including Content or  Photographs of Dynamic Mobile Media., Products or Displays or Mobile LED Trucks and Trailers   for commercial reasons is strictly prohibited without the express written consent of Dynamic Mobile Media LLC,  If any Company or individual not authorized in writing by Dynamic Mobile Media  .   publishes digital content, photographs, derivative works or digital movies or videos of Dynamic Mobile Media, content belonging to Dynamic Mobile Media Inc or any  Dynamic Mobile Media  customers on their web site or any other public accessed web site  or represents it as their own or implies or publishes any content on their web site or any publicly accessed web site without prior written permission signed by an  Director of Dynamic Mobile Media,  then  Dynamic Mobile Media LLC., will take what ever legal action it finds necessary to protect its Copyrighted Material from being used in any unauthorized or non-authorized manner.

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VIRTUAL & INTERPOLATED TECHNOLOGY

How The Virtual Pixel Really Works

Explained In-depth

Why do LED screens use the virtual pixel technology, and what exactly is it? The virtual pixel is a video management feature that allows a 400% increase in image quality. LED screen manufacturers use it to show better quality, realistic-looking images.

But why do LED screens need to increase the image quality through a video-management feature in first place? It's pretty simple: despite its huge size, an LED screen usually has many less pixels than the common computer screen you are looking at right now. How is that possible? Because on an LED display, the distance between two pixels can be up to 30 mm or even more. As a result, on a normal computer screen, you have 1024x768 physical pixels or more while on a 4x3 meters LED wall you have 192x144 physical pixels. Big difference!

So how can we actually see anything on an LED screen with a resolution of only 192x144 (27.648 physical pixels total)? Easy! Thanks to the virtual pixel technology, we can double the number of pixels in length and in height. Therefore we can increase the number of pixels perceived by the human eye by four times. So the same screen with virtual pixel technology will have a perceived resolution of 384x288 pixels (or 110.592 pixels). Isn't that beautiful?

Now you are probably asking yourself how is that possible? Well, there are two different types of virtual pixels: geometrical/squared and interpolated. We will discuss the geometrical/squared virtual pixel technology first.

This technology is based on pretty simple geometrical concepts. If you have two identical shapes placed next to each other, by taking half of each shape you can create other two identical shapes. For example, if you have two identical pixels lying next to each other, by taking half of each pixel, you can create two more pixels identical to the first two, doubling the number of pixels from two to four. Now imagine to double the number of pixels you have in length, and with the same technique double the number of pixels you have in height: to increase the number of pixels (and therefore the image quality) by 400%.

There are some limitations and side effects of this technology, especially when compared with the interpolated technology. The geometrical/squared virtual pixel technique uses half of two adjacent pixels to create other two. It is pretty easy and straightforward once you understand the mechanism, but there is one limitation.

We just saw how two adjacent pixels can create another two by "switching" the side LED'S of each pixel. In this case everything worked fine because the distance between the LED'S is the same distance between the pixels. But let's say for example that I have an LED screen with a bigger pixel pitch for higher viewing distances. What happens if the distance between LED'S and pixels is not the same anymore? In this case the virtual pixel is not identical to the real pixel anymore. The virtual pixels are more stretched than the real ones and therefore the overall image quality will be affected.

Over the past 15 years some manufacturers developed a technology that allows going beyond these limitations and guaranteeing a superior image quality with any resolution. Does it mean that the geometrical/squared virtual pixel is not a good technology? Well, let's just say that it is definitely not the most recent one. Some LED wall manufacturers still use it, so when considering your LED screen supplier, make you check how their virtual pixel technology works!

How The Interpolated Technology Really Works

Explained In-depth

How can you increase the image quality on your LED screen without using squared pixel technology and its related side effects? Now, we will look at the other method used for increasing the image quality on LED screens known as Interpolated Technology. This is the same technology that Dynamic Mobile Media  Inc. and Dynamic Mobile Media use with the LED Full Color Displays that we manufacture.

Interpolated Technology is very similar to MP3 technology used in the music industry. MP3 is an audio-specific compression format based on the acoustic perception of the human ear. It provides a representation of pulse-code modulation-encoded audio in much less space than straightforward methods, by using psycho acoustic models to discard components less audible to human hearing and recording the remaining information in an efficient manner (similar principles are used by JPEG, an image compression format).

In the same way, the Interpolated Pixel is a compression based on the visual perception of the human eye: by compressing a big image to fit the small resolution available on the screen, the interpolated pixel proprietary algorithm compresses the images the way MP3 compresses sounds. This compression (together with the image persistence on the retina) allows us to control the visual perception by showing details, in our case one pixel, where there is nothing: that's why it is called “virtual.”

With this state-of-the-art technology it doesn't matter how far away the pixels are because the image quality does not rely on a geometrical distribution of the LED'S on the screen surface. It also has other key advantages. As we discussed in Part 1, "geometrical pixel" is a relatively old technology and it only works properly when LED'S are equidistant to each other. The problem is that even in this case, there can be some side effects. The main side effects are related to the minimum viewing distance, chromatic fidelity, and contrast ratio.

With minimum viewing distance if LED'S are spread all over, what actually happens is that the pixels get bigger. As the pixels get bigger, the image must be looked from a greater distance or it will appear pixelated, so the minimum viewing distance must increase. This is something to consider, especially if you are installing an LED screen indoors.

Chromatic fidelity is the distance between the LED'S and has other side effects. The closer the LED'S are to each other, the better their single colors will mix, and the sooner your eye will perceive the entire pixel color (the sum of the three basic colors: red + blue + green). On the flip side, the more distance you put between LED'S, the more distance there must be in order to perceive the right color mix. Which means that not only can images at short distances look pixelated, but they might also have a poorer chromatic fidelity (for example, the color yellow might appear as a dot half red and half green).

Last but not least, if you have LED'S spread on the LED screen, the surface might not be as black as you would like it to be to ensure the best contrast ratio. Each LED has a white (or clear) background that is much lighter than the black surface of the screen. If you spread these white LED'S on the black surface you get a gray area. Since the contrast level is a ratio between the light emitted by the LED'S and the environmental light reflected by the screen, you can very well understand that your surface should be as dark as possible.

How can Interpolated Technology avoid all these problems? Because it allows LED'S to be closer together to form a clear pixel unit. Meaning, 1. A smaller minimum viewing distance because the pixel has a smaller surface; 2. Getting a higher chromatic fidelity because LED'S are closer and therefore colors mix faster; and 3. Increasing the contrast ratio because the more space there is between LED'S the more black the surface will look.

Each manufacturer will of course highlight the strong point of its own technology, but bear in mind this information and make your own conclusions. I tried to clarify a fairly complicated topic that often creates confusion. I hope I provided you with useful information that will help you to make a more conscious consideration when you have to decide which kind of LED screen better suits your needs.

 

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Power of Mobile Advertising

Have you ever stopped to think how powerful billboard advertisements are? Think about the companies that advertise on billboards. The majority of them are major companies with millions of advertising dollars to spend each year. There is no doubt this powerful advertising medium is one of the best. Now consider the power of a billboard, not one you drive by, but one that DRIVES BY YOU! Your advertisement will penetrate the minds of commuters, pedestrians and large crowds as they are captivated by the moving message that stands before them. And it is multiple messages not just one!

You're not yet convinced, consider the following:
 

“ Billboard Displays using motion have been determined to be the most effective advertising in both product sales and consumer awareness.”

The Point of Purchase Institute, Washington, DC


“ In the out-of-home advertising industry, mobile billboard displays are the most effective form available boosting product and name recognition fifteen times greater than anything else available! ”  -The European Outdoor Advertising Association, Zürich, Switzerland
 

“ Our study measured consumer awareness and sales between static billboards, mobile billboards, and no billboards. 43% of the respondents recalled the static billboards over no billboards. However, 94% of the respondents recalled the mobile billboard, but in addition, 80% recalled the specific advertisement. Of even greater importance, static billboards resulted in an increase of sales of 54%, but mobile billboards resulted in an increase of sales of 107%!”
 -Product Acceptance and Research, Inc. Washington, DC


“ Many advertisers have pointed out that traditional forms of advertising have become less effective in reaching their consumers, especially the lucrative 25-35 year old demographic. They are out and about and when they are at home, they're either in front of the computer or usually watching cable (digital) television. It has really segregated the market and forced advertisers to look at creative solutions.” Caroline E. Mayer, The Washington Post

97% is the recall rate on mobile advertising.
 Outdoor Advertising Magazine TACA’s market research July & August 2002

96% of respondents say mobile advertising is more effective than traditional outdoor advertising.
Outdoor Advertising Magazine TACA’s market research July & August 2002

Mobile advertising generates 2.5 times more attention than a static billboard.
 Perception research

The advertising effect of being on the side of a Digital LED Advertising Display Sign is 4.3 times better than traditional advertising - Capital Communication

Now consider, along with all the power of the above references, the Dynamic Mobile Media  Inc. Advertising Trucks or Mobile Advertising Trailers  can also be optionally added with a Bluetooth Proximity transmitter also with WiFi allowing you to send advertising  message to viewers cellular telephone and Bluetooth Devices. You can make a “ call for action,” provide additional information, and offer specials with a Coupon that contains a code and or phone number; regardless of what you decide it is engaging the viewer with your advertising.

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