Led electronic display screen structure is how to? - - - - - - LED display - knowledge

Led electronic display screen by tens of thousands of - - - - - - - Hundreds of thousands of semiconductor light-emitting diode pixel of uniform arrangement, using different material can make different color led pixels. The most widely used are red, green, yellow. And blue, pure green LED development has reached a practical phase, the following by manufacturer for you about the LED electronic display: LED electronic display screen can display the change number, text, graphics, image; Not only can be used in indoor environment also can be used in outdoor environment, with a projector, TV wall, LCD display screen the incomparable advantages, Ed was widely attention and got rapid development, with it itself has the advantages of the inseparable. These advantages in summary is: high brightness, low work voltage, low consumption, miniaturization, long life, impact resistance and stable performance. LED the development prospect is very broad, is moving toward a higher brightness, higher resistance to climate, higher luminous density, higher luminescence uniformity, reliability, full color direction. Metal structure composed of led electronic display screen frame: generally indoor screen made by aluminum alloy ( Angle of aluminum or aluminum square tube) Constitute the framework of display board etc, all kinds of circuit board and switch power supply, outside the borders using dark brown aluminum alloy square tube, stainless steel or aluminum alloy package, or sheet metal. Outdoor screen frame according to the screen size and bearing capacity for Angle or i-steel commonly, the casing outside the aluminum-plastic plate can be used for decoration. Display unit: is the main part of the screen, made of light-emitting materials and drive circuit. Indoor screen is a variety of specifications of the unit display board, outdoor screen is unit housing. Scan control board: the function of the circuit board is data buffer, produce all kinds of scanning signals and duty ratio gray control signals. Switching power supply: all sorts of 220 v alternating current into direct current (dc) to provide all kinds of circuit. Twisted-pair cable: master of display data and various kinds of control signals by twisted-pair cable transmission to the screen. Main controller: the input RGB digital video signal buffer, gray level transformation, reorganize, and produce various kinds of control signals. Special: besides has the basic function of the computer display card also output digital RGB signal line and at the same time, the blanking signal to control apparatus, etc. Multimedia in addition to the above function can also be the input analog Video signal into digital RGB signals ( The video acquisition) 。