What is led display?
Author:liyunhui Time:2021-06-09 12:28 Browse(773)
three in one surface sticker: it refers to the synthesis of three luminous points encapsulated in the same point
Three in one surface sticker: it refers to the synthesis of three luminous points encapsulated in the same pointThree in one sub surface paste: refers to the three square lamps arranged in a straight line into a pixel, which means that the price is inferior to the surface paste, but the display effect is the same as that of the surface pasteThree in one separate surface sticker: it means that the red, green and blue light-emitting points are packaged separately, and then arranged into a pixel as the sub surface stickerLED dot matrix display module can display Chinese characters, graphics, animation and English characters; The display modes include static, horizontal scrolling, vertical scrolling and page turning display.

What is led display?

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 drive 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 screenReview of technical advantagesComparison of existing common indoor full color schemes:1. Lattice module scheme: the earliest design scheme.
it is developed from indoor pseudo color lattice screenAdvantages: the cost of raw materials is the most advantageous, and the production and processing technology is simple, and the quality is stable.
the cost of raw materials is the highestDisadvantages: 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.
a scheme based on outdoor display technology is proposed, and the outdoor pixel reuse technology (also known as pixel sharing technology, virtual pixel Technology) is transplanted to the indoor display.
in this scheme, the color problem of dot matrix screen is solvedAdvantages: the color consistency is better than that of dot matrix moduleDisadvantages: poor color mixing effect.
small viewing angle, color difference in horizontal direction.
processing is more complex.
high antistatic requirements.
it is difficult to achieve the actual pixel resolution of more than 10000 points.
in this paper, the method of color mixing is introduced3. 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.
4.
sub surface pasting scheme: actually, it is an improvement of single lamp scheme.
it is still in the process of improvement.
the scheme is still in the process of improvementAdvantages: in terms of display color consistency.
there is little difference between the primary indicators such as visual angle and the labeling scheme, but the cost is low, the display effect is very good, and the resolution can be more than 17200 theoretically.
in this paper, we introduce the principle of color consistencyDisadvantages: the processing is still more complex.
high antistatic requirements.
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