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The distance from the center of an LED cluster (or pixel) to the center of the next LED cluster/pixel, measured in millimeters. Pixel pitch typically ranges from .9mm up to 10mm.
Pixel pitch directly correlates your display resolution and optimal viewing distance. The smaller the pixel pitch number, the more pixels used to make up the image on your display, thus improving the resolution and optimal viewing distance. The lower the pixel pitch, the closer a viewer can stand to your display and still have a great resolution. Having a smaller pixel pitch does help your picture, but at a cost. By having a smaller pixel pitch, you increase the number of LED clusters for your display.
NationStar Technology is the leading manufacturer for chips, LEDs and LED lighting products. It encapsulates the red, green and blue colors within one pixel on a base of gold wire, which it is a better conductor and dissipates heat.
MBI 5153 (PWM) is a leader brand / cutting edge technology from Taiwan. The 5153 chip has a higher refresh rate than the 5124 chip.
The smaller the LED the less room there is for a mask as the LED is protected with a coating. When a mask is on the LED, overtime the heat could degrade the image and it may need to be replaced.
The LED greyscale is 16 bits, and this is the best scale available. The majority of the LED displays are 12 bits, and the less expensive LED displays are 8 bits.
The LED receiving card is Novastar & Colorlight. This allows for a calibration of the screen, especially if a new LED panel is to be replaced along side of an old LED panel. Cdm/ sqm = nits
SMD stands for Surface Mount Diode.
COB stands for Chip on Board. It takes the LED away from the surface and actually embeds it into the PCB board.
Once installed, every screen is calibrated and coefficients of color, gamma, greyscale and brightness are stored within the receiving card of each section. When a tile is replaced with a spare part, the coefficients are read to the new tiles so it may mimic the original one unnoticeably. Obviously, with aging, LEDs dim at different rates over time, so regular calibration sessions are recommended every 12+ months.
Both are used to express the brightness of a display device.
<1000 nits (cd/m2)
<1000 nits (cd/m2)
(11) they are 1.0, 1.2, 1.3, 1.4, 1.5, 1.6, 1.8, 2.2, 2.5, 2.9, 4.0
Likely the AV source (Apple TV) is connected directly into the control sender unit. The Apple TV does not output the same resolution as the native LED screen. The control sender unit can reproduce the content only within a finite amount of pixels, but it cannot scale the content to match exactly. This limitation can easily be taken care of by using a video processor / switcher with an integrated scaler.
There are a variety of video processing scalers that can adapt to different resolutions and match to your screens pixel configuration. It is important to discuss with your consultant the input source(s) you plan to use and whether or not you plan to switch between inputs during live screen operation. Opus LED panels currently support SDI, HDMI, DVI, DP 1.2, HDMI 2.2 and CVBS input formats.
It is a powerful video signal with a receiving capacity that supports DVI and HDMI signal input with a maximum input resolution of 1920×1200 pixels. The 4 gigabit Ethernet outputs support arbitrary splicing with a maximum width of 4096 pixels by 2560 pixels for maximum height. The S4 HD control sender unit adopts dual USB 2.0 interfaces for high speed configuration and easy cascading.
Once an LED screen is installed it should be calibrated. The coefficients of color, gamma, greyscale and brightness are stored within the receiving card of each section. When a tile is replaced, the coefficients are sent directly to the new tile, so it will mimic the original one. Obviously, with age, LEDs dim over time, so regular calibration sessions are recommended every 12+ months.
The computer needs to be at a resolution larger than that of the actual wall. If the LED Screen has a resolution of 1700 x768, any content around 1920 x1080 resolution is fine as the content will input into the actual sender control unit “Colorlight player” at 1700 x768.