LEDs have taken over almost all applications where electric lights are needed. These little solid state lights are truly amazing. They are rugged, last almost forever, use very little power and waste almost no energy as heat. From watches to computer screens to billboards, and almost everything in between, virtually every display uses LEDs in one way or another. Either using them to create a light source behind an LCD panel or using them grouped together as the pixels themselves, LEDs are the driving force in almost all electronic displays made today. The LCD screens on most screens have white LEDs as the light source behind them and the LCD panels filter away the colors of light that should not be shown for each pixel, leaving only the desired color of light to pass through the LCD glass panel at that pixel in the display. This is how the images are shown on LCD screens, basically, starting with a white light (all colors) and only allowing the right colors to come through the LCD panel for each pixel.
With Direct View LED displays, each pixel has at least 3 LEDs; one each of red, green and blue. Using computer circuitry, the amount of light each of the LEDs emits can be varied from 256 shades to over 4000 going from 0 to 100% brightness. Just like drops of paint into a paint bucket, each change in the composition of the light from the LEDs creates a different color of the rainbow. This additive method gives the viewer a much better image with the colors looking perfectly natural to the human eye. Using the 3 basic colors, more colors can be seen than on any other technology that is currently available. And, since the LEDs do not emit any light when they are turned off, the blacks are nearly perfect so the contrast with this technology is amazing!! With the extreme brightness of the LED chips available, displays can now be used outdoors as well as indoors opening brand new applications to use display technology.
The place for the very best in Direct View LED Display Technology
Above is a 1.5mm video display showing a drawing of a curved display.
Below is 1.9mm in a 640 pixel wide by 360 pixel high format with a touch screen added.
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So much information comes from to us today from some kind of a display. Information is just bits flipped one way or another, until that piece of information is shown to someone, it is silent. Modern displays are mostly LCD or some type of a projector. Displays that use LCDs or any kind of projector or flat panel, employ a subtractive technology where a bright white light source is positioned behind an LCD panel. The LCD shutters subtract away light and only allow the correct wavelengths (colors), at the correct brightness levels to get through for each pixel. The backlighting used has traditionally been various types of fluorescent and other light sources. In recent years the trend has shifted to using white LEDs as the light source for this backlighting due to their longevity, durability, smaller form factor and lower energy consumption.
Direct view LED displays (DV) are exactly the opposite, they are an additive technology that starts with no light coming out out at all to create a pure black screen. The LED components are mounted on circuit boards and connected by copper traces to driver chips that turn the individual LEDs on and off. The proper amount of light is added to each pixel by varying the average energy (though Pulse Width Modulation) for each of the colors red, green and blue LEDs for each pixel in the display. This creates displays that have much better contrast, better color saturation, better viewing angles, better grey scale, higher brightness levels and much longer lifetime than any other display technology that has been created so far. Also, since the LEDs light turn off and on at a much, much quicker rate than LCD shutters can open and close, images on direct view LED displays are much sharper especially when there is a lot of movement from one frame to the next. And, maybe best of all, since the pixels can be mounted right next to the edges of the display, there are no gaps or bezels between the display modules, none.
There are currently technical limits on how close these LED pixels and the associated hardware can get to each other, which means that for now, only larger displays can be but with DV LED i. e. 110" or greater diagonal for a 1080p are practical as of right now. OLED technology has bridged this gap by actually printing components on a surface to create displays that allow pixels to be very close to each other to make smaller displays. This technology is not nearly as bright as DV LED, but does have the enhanced contrast due to the additive process used in building the colors by starting with a black screen. You are seeing OLED in watches, phones and very expensive televisions.
The DV LED technology is also being used for smaller, irregularly shaped displays that need to be bright, colorful, longer lasting an some of the other distinguishing characteristics. This is due to the small modular building blocks of DV LED, typically about 1/2 meter square modules that can be placed in any configuration that the user desires.
Not that way for too much longer - New advances in LED technology are continually opening up the possibilities for direct view LED displays of smaller sizes and less expensive price tags. Advances in SMD (Surface Mount Device) and COB (Chip On Board) technologies will open up even more applications for this near perfect Direct View LED display technology. LED is going to be a great train to ride for many miles to come, jump on board with me and lets enjoy the journey knowing that the destination will always keep moving as we chase it.
The Amazing LED Technology is a 30 year old, over-night sensation!!!
Give me a call today with your bright ideas at 727 480-0452 or send me an email at LEDchip@yahoo.com
Above is a 1.9mm in a full 2K format (3840 pixels wide by 1080 pixels high.
Below is a 1.9mm in a full 4K format (3840 x 2160)
Direct View LED Technology (dvLED) over takes video wall technology and is now better in virtually every qualitative and quantitative measurement known
At what point does evolutionary become revolutionary?
For thousands of years people have worked on progressively better and better technologies to try and reproduce, emulate or copy what they saw with their eyes onto som`e kind of media that would allow others to see what they had seen. Every incremental improvement in the technology has moved us from grossly simplistic towards knocking on the door of absolute perfection of the what would have seemed impossible just a few decades ago. Slowly, step by step, the incremental improvements to the technology with each iteration being a little better than the previous version. We have now inched up the mountain to the point where we are actually near perfection. There is literally almost no room for further improvement. We can now make a display that is better than what the viewer has the ability to distinguish with their human eyes. Any significant improvement in resolution or in color depth would not be noticeable. Advancements in the future are going focused primarily on making the products even easier to install, service and making them cost less to make and sell.
It is nice to say every once and awhile, We have ARRIVED!!!! Now everyone can enjoy the fruits of thousands of people’s hard efforts bringing us to this point. Now, any display over 120” diagonal measurement really does need to be built with Direct View LED Technology. Making displays out of wall of LCD TV sets is becoming less and less popular everyday.
Everybody is truly better off with dvLED :
dvLED displays take the virtual out of VR !!!! Groups Can Experience a SHARED Reality. Rather than being locked inside a headset, viewers are expereincing the full effect of the technology without anything over their faces.
Theater in-the-round type installations (or a subset of round) give VR-like experience for rooms full of people without the need for goggles or glasses. Everyone shares a common immersive display experience. Great way for a whole roomful of people to see what a person with VR headset is viewing (3-D design, gaming spectators)
dvLED truly does deliver on the promise of a display technology that is better than it needs to be for just about any application!
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