A light emitting diode (LED) is a tiny, electronic semiconductor that converts electric energy into visible light. The chemical compound used within an LED determines its color, brightness and power efficiency.
Unlike incandescent lamps, LEDs have no filaments that can burn out or fail.
Total light emitted isn't concentrated in a focused area since SMD LEDs do not have directional reflector cups. Instead light disperses evenly across both horizontal and vertical angles, providing wider viewing angles. This makes SMD LEDs an excellent choice for most indoor applications as well as some tighter pitch outdoor applications.
Benefits of SMD:
Through-hole LEDs use a reflector cup and an epoxy lens package. This combination as well as the type of die used, plays a role in determining the elliptical viewing cone produced. A through-hole LED's reflector cup focuses the light emitted by the die into a specific viewing area.
Benefits Of Through-Hole :
LED modules are made up of parts that form the building blocks of video displays, message centers and dynamic message signs. Rows of modules line together to arrange the LEDs in different variations depending on their product, market and purpose.
How Mediavision Does It Best:
Mediavision modules are designed for ease of service and installation. Whether your display is standard or custom, our modules are sure to fit your needs.
A digit is a numeric symbol with seven segment bars. Each segment uses discrete LEDs to produce a value between 0-9. Scoreboards, timing systems and price displays use digits to display information.
How Mediavision Does It Best:
Mediavision digit components offer high-contrast, full-height, broad-stroke digits that provide clear and highly legible numeric information.
Pixels, short for picture elements, are points of light that illuminate to form letters, words, graphics, animations and video images. A pixel can be made up of a single LED, multiple LEDs of the same color or multiple LEDs of different colors. They are the smallest elements of the electronics display system that can be individually controlled and turned off or on at various brightness levels.
How Mediavision Does it Best:
When our engineers design displays, they evaluate the number of LEDs necessary in each pixel to obtain the necessary brightness, while keeping cost and power efficiency in mind for you, our customers.
Resolution is the number of pixels contained in the physical area of an electronic display. The greater the number of pixels per square foot, the greater the amount of detailed displayed. Resolution is determined by display size, pixel technology, pixel pitch and viewing distance.
When choosing a display, consider where it will be installed and the angle at which the display will be viewed. Image quality will be at it's best within the viewing cone of the display—where your primary intended audience should be located.
Readability angle or viewing area will exceed the optimum viewing angle depending on site-specific circumstances and ambient light conditions.
Viewing distances are calculated based on the display type and the distance from the display. Each display will have a minimum and a maximum viewing distance that may vary based on application and intended use.
A large character will have a longer viewing distance while a small character will have a shorter viewing distance. Mediavision uses 50 feet for every one inch of character distance as a general point of reference. Character spacing, also known as pixel pitch, will vary between indoor and outdoor display applications.