What are the differences between LED dot matrix screen and LED display screen?
Author:Liu Xin Time:2021-06-09 14:41 Browse(976)
Difference between LED dot matrix screen and LED display screen:
Difference between LED dot matrix screen and LED display screen:The original dot matrix LED screen is a kind of LED display, a branch, LED display is divided into:In line LED display screen, generally for outdoor and semi outdoor screen; One is surface mount type, which is called surface mount for short. There are surface mount three in one and surface mount three in one; The second is the dot matrix display, which is similar to the three in one packaging method of 5050 and surface mount. One lamp is packaged with one chip, two chips and three chips, which correspond to monochrome, two-color and full-color respectively.
the dot matrix display generally has 8 dots × It's composed of small modules with 8 points.
so it's called module.

What are the differences between LED dot matrix screen and LED display screen?

moduleIn addition, the brightness of LED dot matrix display screen is relatively low.
Liancheng e79fa5e98193e4b893e5b19e331333337383933 has been mentioned above.
the LED (light) in LED dot matrix display screen is packaged into modules. Because of this, its specific module limits the driving mode of LED dot matrix display screen, which directly affects that its brightness cannot reach very high, However, each LED in the LED screen is controlled separately, and there are multiple choices in the driving mode and circuit design, so the brightness can be designed much higher.
this paper introduces the design of the LED screenThe dot matrix screen is mainly limited to "dot matrix" display.
it is a relatively simple and low-cost equipment.
one part is broken.
it does not affect the other part, and the maintenance is simple. Just replace the broken one.
the dot matrix screen is a good oneLED dot matrix display screen is commonly used as information screen.
it is used to display text and simple pictures.
ordinary dot matrix display screen is used indoors.
it is mostly used in low-end single and double color, which is used to scroll text and pictures (two-color can play video), and it also has full-color.
LED dot matrix display screen is widely used as information screenThe price of dot matrix display is relatively low.
the heat dissipation is not very good and the effect is general, so the color screen is rarely used.
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LED dot matrix display mainly refers to the indoor LED display e69da5e887aae79fa5e9819331333262363762 screens made of monochrome, two-color and full-color LED modules;LED dot matrix screen is a kind of LED display screen;LED display: also known as electronic display or LED large screen.
it is composed of LED lattice.
text, picture, animation and video can be displayed by red or green light. 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, LED display module, LED display module and LED display module The display module is composed of a lattice of LED lights.
it is responsible for light-emitting display; The control system can display text, pictures, videos and other contents on the screen by controlling the lighting of the corresponding area1. According to the color base color can be divided intoSingle primary color display screen: single color (red or green).
the color of display screen is red or greenDual primary color display screen: red and green dual primary color.
256 gray levels, 65536 colors can be displayed.
the dual primary color display screen can display 65536 colorsFull color display: red, green, blue three primary colors.
256 gray level full color display can display more than 16 million colors.
the full color display can display more than 16 million colors2. Classified by display deviceLED digital display screen: the display device is a 7-segment code nixie tube.
it is suitable for making clock screen, interest rate screen and other electronic display screens to display numbers.
LED dot matrix graphic display screen: the display device is a dot matrix display module composed of many evenly arranged light-emitting diodes.
LED dot matrix graphic display screenIt is suitable for playing text and image information.
it is suitable for playing text and image informationLED video display: the display device is composed of many light-emitting diodes.
it can display video, animation and other video files3. Classification by usageIndoor display: small light spot.
general Φ 3mm-- Φ The display area is generally several to ten square metersOutdoor display screen: the area is generally tens of square meters to hundreds of square meters.
it has high brightness, can work in the sun, and has the functions of windproof, rainproof and waterproof4. Classification according to the diameter and spacing of luminous pointsIndoor screen by diameter: Φ 3mm、 Φ 3.75mm、 Φ 5mm、 Outdoor screen (divided by space): PH10, pH12, ph14, PH16, PH20, ph25, ph31.25, ph37.55. The display modes include static, horizontal scrolling, vertical scrolling and page turning.
a single module controls and drives 12 pieces (up to 24 pieces) of 8x8 dot matrix.
a total of 16x48 dot matrix (or 32x48 dot matrix), which is 12 times (or 24 times) of a single MAX7219 (or PS7219, HD7279, ZLG7289, 8279 and other similar LED display driver modules)! The method of "cascade" can be used to form any dot matrix large display screen.
the display effect is good.
the power consumption is low, and the cost is lower than that of MAX7219 circuit.
the method of "cascade" can be used to form any dot matrix large display screenComparison of existing common indoor full color schemes:1. Lattice module scheme: the earliest design scheme.
developed from indoor pseudo color lattice screen. Advantages: the cost of raw materials is the most advantageous, and the production process is simple and the quality is stableDisadvantages: poor color consistency.
the mosaic phenomenon is serious, and the display effect is poor.
the mosaic phenomenon is serious2. Single lamp scheme: in order to solve the color problem of dot matrix screen.
it is a scheme based on outdoor display technology, and transplants outdoor pixel reuse technology (also known as pixel sharing technology, virtual pixel Technology) to indoor display.
advantages: color consistency is better than that of dot matrix module.
disadvantages: poor color mixing effect.
small perspective, There is color difference in the horizontal direction.
the processing is complex.
the antistatic requirement is high.
it is difficult to achieve the actual pixel resolution of more than 10000 points.
in this paper, the color difference in the horizontal direction is analyzed3. Chip scheme: the scheme using chip LED as display elementAdvantages: color consistency.
visual angle and other important display indicators are the best in the existing scheme, especially the color mixing effect of three in one surface paste is very good.
the color mixing effect of three in one surface paste is very goodDisadvantages: the processing technology is troublesome.
the cost is too high.
Patch is divided into three in one patch and three in one patch; Relatively speaking, the effect of three in one patch is better.
the price is slightly higher
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