LED display
Author:Poplars Time:2021-06-15 15:45 Browse(213)
LED display (LED)
LED panel: LED is the abbreviation of light emitting diode, or LED for short.

LED display

it is a display mode by controlling the semiconductor LED.
its general appearance is composed of many usually red LED, and the characters are displayed by the light on and off.
it is used to display text, graphics, images, animation, market, video, etc The display screen of video signal and other information.
the display screen of video signal and other informationLED display: also known as electronic display or floating word screen.
it is composed of LED lattice.
through the red or green light of LED electronic display (1 piece) to display text, pictures, animations and videos, the content can be changed at any time, and each component is a display device with modular structure.
it is usually composed of display module, display module and display module The display module is composed of a lattice of LED lights.
it is responsible for light-emitting display; The control system can make the screen display text, pictures, videos and other contents by controlling the lighting of the corresponding area; The power supply system is responsible for converting the input voltage and current into the voltage and current required by the display screen.
the power supply system is responsible for converting the input voltage and current into the voltage and current required by the display screenThe LED display screen can display changing numbers, words, graphics and images; It can be used not only in indoor environment but also in outdoor environment.
it has incomparable advantages over projector, TV wall and LCD screen.
it can be used in outdoor environmentLED has been widely valued and developed rapidly.
these advantages can be summarized as follows: high brightness, low working voltage, low power consumption, miniaturization, long life, shock resistance and stable performance.
the development prospect of LED is extremely broad.
the development trend of LED is as followsAt present, it is developing in the direction of higher brightness, higher weather resistance, higher luminous density, higher luminous uniformity, reliability and panchromaticLarge screen display is another huge market for ultra-high brightness LED applications.
it includes monochrome, two-color and full-color display of graphics, text and numbers.
various uses of LED display are listed in Table 2.
traditional large screen active display generally uses incandescent lamp, optical fiber, cathode ray tube, etc; Passive display generally adopts the method of changing the brand.
Table 3 lists the performance comparison of several displays.
LED display has been limited by the performance and color of LED itself.
nowadays.
ultra high brightness AlGaInP, TS AlGaAs and InGaN LEDs have been able to provide bright red, yellow, green and blue colors, It can fully meet the requirements of full-color large screen display.
LED display can be assembled into various structures according to pixel size.
the diameter of small pixel is generally less than 5mm. Each pixel of monochrome display uses a T-1 (3 / 4) led light, each pixel of dual color display uses a T-1 (3 / 4) led light, and full-color display needs three T-1 red, green and blue lights, Or a multi chip T-1 (3 / 4) led lamp can be assembled as a pixel.
large pixel is composed of many T-1 (3 / 4) red, green and blue LED lamps.
InGaN (480nm) blue, InGaN (515nm) green and AlGaAs (637nm) red LED lamps are used as the three primary colors of LED display.
it can provide realistic panchromatic performance, and has a large color range, including blue-green, green red, etc, It is basically consistent with the TV color range specified by NTSCMarket prospect of LED display screenThe LED display adopts low voltage scanning drive.
it has the advantages of low power consumption, long service life, low cost, high brightness, large viewing angle, long visual distance, waterproof, and many specifications. It can meet the needs of various application scenarios and has a very broad development prospect, It is recognized as the most potential and fastest-growing LED application market.
in 2008, the market scale of LED display screen was about 10 billion yuan.
with the holding and preparation of Beijing Olympic Games, Shanghai World Expo, Guangzhou Asian Games and other major games.
with the large-scale application of stadiums, airports, stations, banks, hospitals, public squares, commercial places and residential communities, The market application space of LED display screen is expanding.
in addition.
the installed large-scale LED display screen will undergo a trend of replacement every 10 years. With the improvement of people's living standards, outdoor LED display screen will be gradually applied in various industries.
the market application space of LED display screen is expandingIf you need more information, you can send it to you by email.
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