Gone are the days of using small lights to change the color of a light source. Today, a small diode is enough to provide endless color. But compared to traditional light bulbs, what makes LEDs change color? How can something so technologically advanced be so small? here we talk about Full Color programable LED Display.
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What is Full Color programable LED Display?
A color-changing LED consists of three separate diodes in a lamp housing. Each of these diodes emits its own color. Red, green or blue. When all three diodes are turned on at full capacity, white light is also generated. Adjusting the intensity of each diode creates a range of different colors and shades.
Colored LEDs are all around us. In addition to decorative applications, they are used for communication purposes and to show the surroundings. Just head to Citylight. Want to know more? Let’s get started. In this blog, I will talk about how color LEDs work, whether you can change the color of your existing LEDs, and how you can change them.
Before I get into that, it’s worth saying what I mean by color. “Color” here refers to the color of the light emitted by the diode. It can be any color of the rainbow. While referring to the shade of white light emitted. White light can produce warmer or cooler visual effects, and this is measured in degrees Kelvin
.The Kelvin scale was developed by a British physician named Lord Kelvin, who studied color changes in heated metals. He found that as a black substance increased in temperature, its color changed from red to yellow and eventually to blue.
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Unlike air temperature, which is measured in degrees Celsius or Fahrenheit, warm colors have a low Kelvin temperature and cold color temperatures have a high Kelvin temperature. The Kelvin scale runs from 0 to 10000K, but most LEDs are between 2000 and 6500K.
LEDs can produce up to 16 million colors. So how do they work? Color LEDs consist of 3 red, green and blue (RGB) diodes. The concept of RBG is an add-on model, these colors are used because our eyes see all colors as a combination of red, green and blue wavelengths. But let’s explore this concept a little deeper.
Let’s have a colorful walk in the memory line. You may remember from school that mixing blue and yellow crayons on paper makes it green. And the main colors are red, blue and yellow and you mix them together to make secondary colors. Interestingly, this model of color combination is only one of two models that exist in the visible world. The second case is the CMYK subtraction model, in which the absence of color means white. This means that the corresponding wavelength of sunlight is not absorbed by an object, but is reflected to our eyes.
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This color model is used for printing photos and magazines, for example, where different color inks are mixed to create more colors. Now we come to the additive model of color combination, which means the absence of color means black. The color source of photons is light using different metal alloys.
Red and amber LEDs use a system of gallium phosphide indium aluminum (AlInGaP). Green diodes use gallium phosphide and blue diodes use gallium indium nitride. This is how RGB colors came into being, where the main colors are red, green and blue. This is what worries us on this blog.
Because televisions, monitors and electronic devices use this method of color combination. They illuminate red, green or blue lights in a black pixel with different intensities to produce more than 16 million colors.
The current passing through all 3 diodes produces white light with equal intensity. Because LEDs are so small and the diodes are so close together, our eyes see the color combination instead of each separate color diode.
By adjusting the current so that it passes through only 2 diodes, 3 additional colors can be created. The current passing through the red and blue diodes creates magenta, red, green, yellow, blue, and cyan. There is generally a table that shows the main color outputs that are obtained by mixing different colors.
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Beyond that, other colors are created by adjusting the current level passing through each diode. For example, if the red and green diodes are bright but the green color works at 50%, a color is created between red and yellow. It can be colored like orange.
Now check out some interesting math relationships to show you the number of possible colors from an RGB LED. The RGB model uses a color code to quantify the intensity of each diode. If you have experience in graphic design or web development, you are probably familiar with this. In RGB color code, each diode is given a decimal value between 0 and 255. Therefore, the orange color code, for the continuation of the previous example, will be 255, 128, 0. It can also be provided as a percentage. 100%, 50%, 0%.
Since each of the three colors can be set to 256 values (including zero), 256 * 256 * 256 = 16777216 possible slide colors with a remote at your disposal. Yes, all of these can only be achieved by combining the three primary colors. To see how it works.
In color-changing LEDs, a microcontroller is used to control whether each diode is on or off. To dim a diode, while LEDs use pulse width modulation (PWM). As the name implies, PWM works by quickly turning the diode on and off. This flicker is so fast that it is invisible to the human eye. Hence, our eyes see only the pure result, that is, color. Most LEDs flicker at 1000 Hz, but the human eye can only detect flashes slower than 200 Hz.
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A standard RGB LED uses 3 color diodes, on the other hand RGBW uses 4 diodes, the extra diode is a white diode. This white diode produces pure white light, so when you need white, only the white diode works. The rest will work as long as you need the colors.
This is where RGBW LEDs really shine! An RGBW LED can produce light pastel colors in addition to all the colors that RGB light produces. In addition, and more importantly, due to the high white CRI LED, the RGBW light output is either suitable for working lighting and with it you can see objects well. That’s not all! RGBW LED can also change the color temperature of the light produced!
If you want enough light, the white and blue LEDs combine to create a cool temperature. If you want to relax, the red and white diodes will give you a warm white color. If you do not need a lot of light, the main RGB LED can be enough to provide color and aesthetics. The final key difference is the quality of the white light produced.
Obviously, in RGBW LEDs, the white produced in the same category as pure white is purer, while in RGB, the three colors combine to form a slightly bluish-white color that can be unpleasant. Here is an interesting video that shows the difference in brightness and color range between RGB and RGBW LEDs.
.In general, adjusting the color of an LED is relatively simple, but can the same be said for changing the color temperature of a lamp? Unfortunately, this is not easy. Liquids are produced to produce specific Kelvin dyes, meaning that once fabricated, the color temperature is constant and cannot be changed.
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Warm lights have a calming effect, and blue lights help keep us awake. So this is frustrating, because some areas of the house are used for both relaxation and concentration. You can not have both at the same time.
Fortunately, manufacturers have realized this situation and invented LED devices by changing the color temperature. These devices are a combination of two sets of LED chips, cold and hot temperatures that users can change them alternately.
Although technology is relatively simple today, it is a bit difficult to customize color-changing LEDs. Let’s analyze it.
First, there are two types of color LEDs: monochrome and multicolor. For example, if the LED is always a solid red, it would be pointless to include green and blue diodes inside the body. Because they were always off.
This means that changing the color of monochrome LEDs is physically impossible because they do not have the necessary components. On the other hand, most color LEDs contain all three primary color diodes. They may be able to go through different colors, but the composition is predetermined by the manufacturer of the LEDs.
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The color that light can emit is controlled by a small computer on the board. Unless you have access to this computer, it is unlikely that you will be able to customize the color of your LEDs.
However, over the past year, smart LEDs have become very popular. This innovative technology lets you control the color of LED lights via a remote control or smartphone app.
So, you have an idea to set up your cozy corner and you think you have several LED strips in stock. Unfortunately, it turns out, they are plain white! Can you convert them to RGB and produce the color you want? Unfortunately not. As I said before, you can not replace your regular white monochrome LED with an RGB tricolor LED.
But do not let that discourage you, as this is a great opportunity to do DIY painting on light bulbs with your kids.
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You may think that no matter where you buy the Full Color programmable LED Display you want, you will eventually reach your goal, but buying from Citylight has its advantages, here are a few of them. We call them: First of all, you have to buy your product unintentionally with a guarantee, and in addition, you can buy the product you want at a reasonable price, maybe you are the person who in your purchases You prioritize the price of the product, in which case you must pay attention to this issue.
Nevertheless, the technology behind color-changing LEDs is surprisingly simple. This color effect is for LEDs and can not be applied to traditional or incandescent halogen lamps. So it is not surprising that LEDs are becoming increasingly popular and are gradually being integrated into a range of devices. What do you think about colored LEDs? Do you introduce them to your home or do you keep them in the attic with Christmas and Halloween decorations?
Light emitting diode or color LED is one of the most common light sources used today. Whether it’s your headlights (or daytime running lights) or your living room lights, there are countless uses for LEDs.
Unlike older filament lamps, LEDs (and fluorescent lamps) require a special circuit to operate
Since LEDs are inevitable in our lives, it is a good idea for those interested (engineers, designers, etc.) to get acquainted with the principles of light emitting diodes. This article is intended as a guide to a brief understanding of LEDs, including a brief introduction to the LED electrical symbol, types, structure, specifications, LED drivers, and more.
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In this article, we tried to make you more familiar with colored LEDs, we hope you find the content useful. Unfortunately, these days, despite the fact that many people prefer to do their shopping online to get their goods easily at the door, but there are other people who do not like online shopping because they believe that in this way is a scam. It is high and their money may be trampled.
You can be comfortable in buying online from Citylight, because you can easily register your order and settle the money after the package arrives, this is not a problem in our opinion, note that Citylight to attract customers It does everything.
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Two important semiconductor light sources that are widely used in various applications are laser diodes and LEDs. The main function of laser diodes is based on emission excitation, while LED is based on spontaneous emission.
Light emitting diodes are the most common light source in electronic components. For example, they are widely used to display time and many other types of data on the screen on certain display devices. LEDs are optical semiconductor devices that easily convert electrical current into light (or light). The area of an LED is usually much smaller, and many integrated optical components may be used to design its radiation pattern. Its main advantage is low manufacturing cost and longer life than laser diode.
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When the P positive side of the diode is connected to the power supply and the N side is connected to ground, it is said that the connection is in forward bias, which allows electric current to pass through the diode. The majority and minority carriers of the P and N sides combine to neutralize the carriers in the discharge layer at the PN junction.
We at Citylight have always tried to offer you the best products, so it is safe to say that the best sellers of colored LEDs in Toronto are actually the City Light that has been trying to deliver the best products to its customers for many years. . Especially since the customers of this department store mostly live in Toronto, so he does not like to discredit his country.
Digital signage is a sub-segment of electronic signage. Full Color LED Display Screen use technologies such as LCD, LED, projection, and e-paper to display digital images, videos, web pages, weather data, restaurant menus, or text. outdoor full color led display Advertising Display can be found in public spaces, transportation systems, museums, stadiums, retail stores, hotels, restaurants, and corporate buildings, etc., to provide wayfinding, exhibitions, marketing, and outdoor full color led display advertising.
Information of Full Color programable LED Display
- Custom Full Color LED Display Screen (LED Sign) for Public Information News, Weather, Traffic, Local, Fire Exits, and Traveler Information.
- Internal communications – messages from the company, such as health and safety issues, news, and so on.
- Pricing, pictures, raw materials, recommended applications, and other product details are available.
- Interpretive signage at museums, galleries, zoos, parks and gardens, exhibitions, tourism and cultural sites provides information to improve the customer service experience.
- Promotion and advertising are terms used to describe the process of marketing a product or service.
- In-store bespoke led sign to promote the company and establish a brand identity.
- Customer behavior may be influenced through navigation and sending clients to other places.
- Signage to assist buyers in choosing dresses within a fashion store, checking pricing, accessing product information, and managing shopping lists through influencing product or brand decision-making.
- Enhancing the customer experience – examples include reducing perceived wait times in waiting rooms, bank lines, and other comparable situations.
- Using interactive displays for navigation (on the floor, for example, as with “informational footsteps” found in some tourist attractions, museums, and the like).
- Reservations – tiny, interactive displays mounted on walls or desks that allow employees to book a certain area for a specific amount of time.
Frequently Asked Questions:(about Full Color LED Display Screen)
Q1:How do you pick the right Full Color LED Display Screen for your needs?
When choosing a led screen on your own, you only need to consider three easy questions.
1.Will you be using it indoors or outside?
2.Is it intended for rental usage (i.e., it will be moved from one location to another often) or for permanent installation (i.e., it will remain in the same location indefinitely)?
3.What is the approximate size of the led display you want to buy?
Q2:How do I know which pixel pitch to use?
A:In most cases, indoor die casting P2.5- P3- P4- P5- P6-P3.91- P4.81- P6.25 will be used for the indoor stage.
Select P4.81- P6.25- P6 P8- P10 for an outdoor full color led show stage.
P3 – P4 – P5 – P6 – P7.62 – P10 can be selected for a fixed mounted led screen.
If the location is not directly exposed to the sun, outdoor SMDP6 -P8- P10– P10– P16 can be used.
If exposed to direct sunlight, use outdoor SMD P8, DIP P10.
SMD P8,SMD P10,SMD/DIP P16 can be used for large size led screens (custom led signs).
We also looked at outdoor high resolution SMD 3in1: P4- P5- P6 -P8- P10, which are suitable for high resolution led screens.