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Indoor LED Display Background

Edit:Shenzhen Porstar Electronics Co.,Ltd  Date:Jun 20, 2017

     LED, light emitting diode (light emitting diode abbreviation). It is a diode made of a compound of gallium (Ga) and arsenic (As), phosphorus (P), nitrogen (N), indium (In), by controlling the display of semiconductor light-emitting diodes. When electrons and holes Composite can radiate visible light, which can be used to make light-emitting diodes. In the circuit and the instrument as a light, or composed of text or digital display. Phosphorus gallium arsenide diode red, gallium phosphide emitting green, silicon carbide diode yellow, indium gallium nitride diode blue light. Indoor LED Display  LED luminous color and luminous efficiency and the production of LED materials and processes related to the beginning of the light bulb is blue, followed by phosphor, according to the different needs of users to adjust the different light color, widely used in red , Green, blue, yellow four kinds. As the LED operating voltage is low (only 1.2 ~ 4.0V), can take the initiative to light and have a certain brightness, brightness can be used voltage (or current) regulation, itself and impact resistance, anti-vibration, long life (100,000 hours), so in Large display device, there is no other way to display and LED display match.Indoor LED Display The red and green LED chip or lamp together as a pixel produced by the display called three-color or dual-color screen, the red, green and blue LED chip or lamp tube together as a pixel display Screen called three primary colors screen or full color screen. If only one color is called monochrome or single color screen, the production of indoor LED screen pixel size is generally 1.5-12 mm, often used to produce several different colors of LED die package into one, outdoor LED screen pixels Size is mostly 6-41.5 mm, each pixel consists of a number of various monochrome LED composition, the common product called the pixel tube, two-color pixel cylinder is generally composed of 2 red 1 green, three-color pixel with a red 1 Green 1 blue composition. Whether the use of LED production of monochrome, two-color or three-color screen, want to display the image need to constitute the pixels of each LED brightness must be able to adjust the brightness of its adjustment is the gray level of the display. The higher the grayscale, the more detailed the image is, the richer the color, and the more complex the display control system. General 256 gray-scale images, the color transition has been very soft, and 16 gray-scale color images, color transition line is very obvious. Therefore, the color LED screen are currently required to make 256 to 4096 gray scale.Indoor LED Display