What is led display
Author:Tang Qian Time:2021-06-07 12:26 Browse(272)
LED display (LED)
LED panel: LED is the abbreviation of light emitting diode, or LED for short.

What is led display

it is a display mode by controlling semiconductor LED.
its general appearance is composed of many small red lights, which display characters 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 informationThe LED display screen is divided into graphic display screen and video display screen.
both are composed of LED matrix blocks.
the graphic display screen can display Chinese characters, English texts and graphics synchronously with the computer; The video display screen is controlled by microcomputer.
it can display all kinds of information in a real-time, synchronous and clear way of information transmission. It can also display two-dimensional and three-dimensional animation, video, TV, VCD programs and live scenes.
the LED display screen shows bright colors.
it has a strong sense of three-dimensional, static as oil painting and dynamic as film. It is widely used in finance, taxation, industry and commerce Posts and telecommunications, sports, advertising, factories and mining enterprises, transportation, education system, stations, docks, airports, shopping malls, hospitals, hotels, banks, securities markets, construction markets, auction houses, industrial enterprise management and other public placesThe 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 operating voltage, low power consumption, miniaturization, long life, shock resistance and stable performance.
the development of LED is closely related to its own advantagesThe development prospect of LED is very broad.
at present, LED is developing in the direction of higher brightness, higher weather resistance, higher luminous density, higher luminous uniformity, reliability and panchromatichttp://baike.baidu.com/view/78209.html?wtp=ttYou can go here to have a look at the complete information.
according to the different application places.
LED display can be divided into indoor and outdoor◆   Indoor screen  Mainly used for indoor, in the production process, the first is to make the luminous crystal lattice module (or digital tube), and then the module splicingAccording to the user's requirements, the display unit board is used as the basic unit to splice the display unit board into the size required by the userAccording to the size of pixels.
indoor screen is divided into Ф 3.75、 Ф 4.8、 Ф 5、 Ф 8、 Ф
10, etc◆   Outdoor screenIt is mainly used outdoors.
in the manufacturing process, the first step is to package the light-emitting grains into a single LED, which is called a single lamp,The single lamp used for making outdoor screen generally adopts the reflective cup with the function of concentrating light to improve the brightness; Then it is packaged by multiple single LED lampsA pixel tube or a pixel module is formed into a single pixel tube or a pixel module, and the pixel tube or the pixel module forms a dot matrix display unit box bodyIn the display application area, a display unit box should be taken as the basic unit to form the required size.
the box should be sealed in the design.
the display unit box should be sealed in the designTo achieve the purpose of waterproof and antifogging, and make it adapt to the outdoor environment.
1According to the size of pixels.
outdoor screen is divided into Ф 10. 16, 20, 25 and other specifications.
all of them are in the same specification  1.3.2   Classification by primary colorAccording to the color of the LED used.
the LED display can be divided into three types: single primary color, double primary color and full color.
the color of the LED display can be divided into three types◆   MonochromeEach pixel has only one color.
most of the pixels are red, because red has higher luminous efficiency and higher brightness,It can also be green or mixed color, that is, part of it is red, part of it is green and part of it is yellow◆   BicolorEach pixel has two basic colors of red and green.
yellow can be superimposed. In the case of gray control, red and green can be used to distinguish grayAt most 65535 colors can be combined with the change of color◆   Full colorIt is also called three primary colors.
each pixel has three primary colors, red, green and blue. Under the condition of gray control, through the change of different gray levels of red, green and blueIt can restore the colors of nature and combine 16777216 kinds of colors.
in this way, the color of nature can be restoredClassification by functionAccording to the functions of the screen.
the LED display can be divided into four types: bar screen, graphic screen, video screen and digital screen.
the LED display can be divided into four types according to the functions of the screen◆    Bar screenThis kind of display screen is mainly used to display text.
it has its own 16x16 or 24x24 dot matrix font library, which can work independently and remotelyThe controller can input Chinese characters, and can also be used online with the computer to send information through the computer.
it can work offline.
because of this kind of screenMost of them are made into strips.
therefore, they are called strip screens.
the screen is made of strips◆   Graphic screenThis kind of display screen is mainly used to display text and graphics.
generally, there is no gray control.
it inputs information through communication with the computer.
it communicates with the computerCompared with the bar screen.
the advantage of the graphic screen is that it displays rich fonts and can display graphics. Compared with the video screen, the graphic screen has the greatest advantageA point is a computer that can control multiple screens and display them offline.
the point is a computer that can control multiple screens and display them offline◆    Video screenThere is a one-to-one mapping relationship between the screen pixels of this kind of display screen and the pixels of the control computer monitor.
the results show that the screen pixels of this kind of display screen have a one-to-one mapping relationship with the pixels of the control computer monitorThere is gray control, so its tableIt has abundant resources, and is equipped with multi-media card, and video signal can be played on the video screen.
the video screen has good openness.
it can reflect computer monitoring in real time
display◆    Digital screenDigital screen is the cheapest LED screen.
it is widely used in bank exchange rate, interest rate display, hotel seafood price list and room price listIn most cases, the bar screen is added to the digital screen to make up for the deficiency that the digital screen can not display text◆   Hybrid screenThat is, dot matrix digital mixed display.
it is most commonly used to display the stock market.
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