A display is comprised by millions of pixels. The display’s quality usually refers to the quantity of pixels. For example that a display with 4K resolution comprises 3840×2160 (or 4096×2160) pixels. A pixel is composed of three sub pixels, namely green, blue and red. These are commonly known as RGB. The sub pixels within a pixel switch color combinations in a color, a different hue can be created. When all the pixels on the display working together, the display could make millions of colors. When the pixels are swiftly switched off and on creating a picture.
The method by which a pixel is controlled differs in every kind of display. CRT LED, SMD screen, and other newer models of displays control pixels differently. In essence LCDs are illuminated by an backlight, and the pixels are turned to and off electronically using liquid crystals to spin in polarized light. A Polarizing glass filter is placed on top of and behind the pixels. The front filter is located on a 90 degree angle. Between the two filtering are liquid crystals that can be switched electronically off and on.
LCDs are constructed using either active or passive matrix. Active matrix grid for display. An active matrix LCD called a thin-film transistor (TFT) display. A passive LCD includes conductors in a grid with pixels situated at each intersection of the grid. A current is passed through two conductors within the grid to regulate the light intensity for each pixels. Active matrix displays have one transistor that is located at every intersection of a pixel, which requires less current to regulate the brightness of a single individual pixel. Because of this, the current of the active matrix screen could be switched off and on more often, thereby increasing the time to refresh the screen.
SMD screen with passive matrix feature dual scanning, which means they can scan the grid two times using current at the same rate it took to complete one scan with the original technology. But active matrix is the superior option of the two.
What is the best way to select the correct Outdoor LED DISPLAY?
Today, we’re happy to present six tips to consider when choosing the perfect Outdoor LED display for your needs.
Cabinet:
The cabinet for the exterior LED light display can be the main component for outdoor installations The cabinet must be constructed to be completely waterproof as well as leak-proof and drainage design.
Lightning protection device:
A lightning protector must be mounted on the structure that houses the outdoor LED display make sure the shell and cabinets of the billboard’s outdoor LED display are properly grounded. Therefore, the power source will be discharged at a time due to the current of a large amount.
Equipment for cooling systems:
If the weather and temperature in your area is extreme cold or hot and cold, then air conditioning cooling equipment should be installed for outdoor LED displays It is essential to make sure the temperature inside is in the range of -10 degrees to 40 degrees.
Brightness:
The brightness of your outside SMD screen is essential to fit the local climate, so you should make sure that the display is at the right height for the location of installation, distance of view from people as well as the brightness of the sun’s natural light setting up environment, when discussing solutions together with the supplier.
Maintenance way:
This aspect is crucial when choosing an outdoor LED display. There are two methods for maintenance: front access and rear access. It depends on the latter. Are you able to fix an outdoor light from behind, or not immediately after installation? This must be clarified prior to receiving a quote by your vendor.
Control system:
There are two types of control methods for the outdoor LED display: both synchronous and asynchronous. They are two different ways of controlling and you can know what the distinction is between Asynchronous and Synchronous control from our latest news.
An outdoor LED display of high-quality will be able to adapt to various conditions, temperatures and usage patterns for various purposes. There should be a positive impact on the brightness distant and near, particularly when it comes to large concert events and special effects lighting needs to be able to accommodate the demands of stage shows. Sometimes, however, the intensity of the K-LED Display is not consistent. What is the reason for this?
Inconsistent brightness is a normal part of production. This is why the LED display manufacturer takes an alternative method of binning upon completion of production. The lower the variance in brightness between two bins adjacent to each other the greater the consistency but it can make it difficult for the display company of low yield and large stock. Thus, each LED display manufacturer is responsible for controlling the brightness variation by approximately 20 percent.
