Small pitch LED display
Small pitch LED display refers to the LED point spacing below P2.5 indoor LED display, mainly including P2.5, P2.0, P1.8, P1.5 and other LED display products. With the improvement of LED display manufacturing technology, the resolution of traditional LED displays has been greatly improved.
Small pitch LED display is a general term for a complete set of systems, including LED display system, high-definition display control system and heat dissipation system. The small-pitch LED display adopts pixel-level point control technology to realize the state control of the brightness, color reproduction and uniformity of the pixel units of the display. The automatic reflow soldering process is used in the production process of the display, and there is no need for manual post-welding.
Display advantages
The indoor high-end display market is dominated by DLP rear projection display, but DLP technology has natural defects, first of all, the 1 mm gap between the display units that cannot be eliminated at all can be swallowed up at least one display pixel. Secondly, in terms of color expression, it is also inferior to the LED display that directly emits light. What is particularly deficient is that due to the difference between DLP display units, the uniformity of color and brightness of the entire display is difficult to control, and with the increase of product running time, the difference between units will become larger and larger, and it is difficult to maintain consistency in the seams, and it will become more and more obvious. The color difference between the units and the adjustment of the seams, even in the later stage of maintenance and repair, are a more difficult thing.
The biggest competitiveness of indoor high-density and small-pitch LED displays is that the display is completely seamless and the natural reality of the display colors. At the same time, in the later maintenance, LED display has a mature point-by-point correction technology, the use of more than one or two years of display can use the instrument to carry out the whole screen of the one-time correction, the operation process is simple, the effect is also very good. Therefore, if the two are evaluated from the aspect of display quality, it must be that the high-density small-pitch LED display is better than the DLP rear projection.
Product features
As the name suggests, the small-pitch LED is characterized by a small point spacing of the screen and a high resolution per unit area. It can display higher definition graphic images and videos, and can also display more video and image screens, especially in the use of image stitching, which can be seamless and any large area stitching. Of course, if the small-pitch LED display wants to achieve the ideal display effect, it is inseparable from the auxiliary role of the video processor.
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Introduction to the characteristics and principles of small-pitch LED displays
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First, the introduction of small pitch LED display
Before understanding the principle of small pitch led display, we first need to know what is a led small pitch display, which is literally understood as a small spacing led display. So how small is this spacing to reach? This definition is relative, not perceived, so why say so? As early as 2014, at that time, the P4led display was a small spacing led display, and it was a very good to do an indoor P6 full-color display or an indoor P5led full-color screen.
And to 2018 is a small pitch led display blowout year, which mainly benefits from the development of LED lamp bead technology, small size lamp bead technology is more and more mature, the quality is more and more stable, is now P2 below the spacing of the display is called small pitch led display, the current market exchange popular main models are: P2led electronic display / P1.9led full-color screen / P1.8led screen / P1.6led display / P1.5led display / P1.5led display / P1.25 small pitch led display.
Second, the principle of small pitch LED display
The principle of small pitch led display is mainly the use of small size lamp beads, such as SMD 1515 lamp beads or SMD 1010 lamp beads, reduce the distance between the lamp beads and the lamp beads, PCB board using four layers or 6 layers of circuit board to design, the box body using die-cast aluminum material, all the design is to ensure the quality and stability of LED small pitch display products.
Third, the main features of the small pitch display screen
(1) The modular design of the unit, the whole screen is really "no seams".
Especially when used to broadcast news topics or hold video conferences, people are not fragmented. At the same time, when WORD, EXCEL and PPT are often played in the environment of the led display conference room, they will not be confused with the table separation line due to the stitching, resulting in misreading and misjudgment of the content.
(2) The color and brightness of the whole screen with small spacing have a high degree of consistency and uniformity, and can be corrected point by point.
Completely avoid the projection fusion, LCD/PDP tablet splicing, DLP stitching commonly used after a certain period of time will come out of the vignetting, dark edges, "patching" and other phenomena, especially for the conference display often play "visual" analysis charts, graphics and other "pure background" content, small-pitch HD LED display scheme has an incomparable advantage.
(3) The brightness of the whole screen with small spacing supports intelligent adjustment from 0~1200cd/㎡, which fully adapts to various indoor display environments.
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Fourth, the characteristics of small pitch LED lamp beads
(1) 4-PIN RGB package, chip linear arrangement;
(2) The use of black package substrate to improve color contrast;
(3) The weight of the product is light, and the weight of a single LED is as small as 1.0mg;
(4) Can achieve all-black RGB package; Light loss 25%;
(5) Small size 0.5*0.5mm RGB package can be realized;
(6) The surface of the product is matte treatment, and the screen glows more softly;
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Small pitch LED display has six advantages
1. Seamless splicing
Splicing large screen display technology in the maximum to meet customer needs can not avoid the impact of physical border, even if the ultra-narrow side DID professional LCD screen, there is still a very obvious stitching, only the led display makes the stitching after the splicing to achieve seamless requirements, high-density small spacing LED seamless splicing advantages can be highlighted.
2. High brightness is intelligently adjustable
LED screen itself is high brightness, in order to meet the strong light environment and dark light environment to give the viewer a comfortable viewing effect, to avoid visual fatigue, can be combined with the light sense system for brightness adjustment.
3. Better color performance with high gray scale
Even if the grayscale performance of the display is almost perfect at low brightness, and the picture layering and vividness of the display are higher than those of traditional displays, the image details can be more detailed without information loss.
4. High contrast faster response speed and high refresh rate
The number of times the electron beam repeatedly scans the image on the screen, the higher the number of scans, the higher the refresh rate, and the better the stability of the displayed image (picture). The lower the refresh rate, the more the image flashes and shakes, and the faster the eyes strain. LED small spacing screen under high refresh, the ingestion picture is stable, no ripple black screen, the image edge is clear, and the real information of the image is accurately restored.
5. Color restoration and naturalization
Using the international leading point-by-point correction technology, the use of LED luminous principle, complete retention of color authenticity, to avoid other display technologies such as backlight projection materials, light running path caused by color loss and deviation, to achieve the true sense of color reproduction.
6. Three-dimensional visual experience
When customers choose to use the 3D playback mode, the splicing wall will present a shocking high-definition image, whether it is live TV, exhibition display, or digital advertising, it can fully interpret the wonderful visuals, so that the audience can enjoy an extraordinary visual experience.