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What is Full-Array Local Dimming, Is It Worth It?

In the realm of digital signage, achieving optimal display quality is paramount. Full-Array Local Dimming (FALD) technology has emerged as a promising solution, enhancing contrast ratios and improving overall visual performance. But what exactly is Full-Array Local Dimming, and is it worth the investment? Let’s delve into the intricacies of this technology to uncover its benefits and determine its value proposition for your digital signage setup. Full-Array Local Dimming is a backlighting technology employed in LED displays, offering superior control over brightness levels and contrast. Unlike traditional LED displays, which utilize edge-lit or direct-lit backlighting, Full-Array Local Dimming divides the LED backlight into zones, each independently adjustable to dynamically control brightness and darkness in specific areas of the screen. This precision backlighting technique results in deeper blacks, brighter highlights, and enhanced image detail, ultimately delivering a more immersive viewing experience. One of the primary advantages of Full-Array Local Dimming is its ability to enhance contrast ratios significantly. By selectively dimming certain areas of the screen while keeping others illuminated, FALD displays achieve deeper blacks and brighter whites within the same frame, resulting in images that appear more vibrant and lifelike. This improved contrast not only enhances the visual appeal of content but also contributes to better image clarity, especially in low-light environments. Furthermore, Full-Array Local Dimming minimizes the phenomenon of backlight bleeding, commonly observed in traditional LED displays. With precise control over backlight zones, FALD technology reduces light leakage, ensuring uniform brightness across the screen and eliminating distracting halo effects

LCD brightness and LCD backlight requirements

LCD brightness Brightness represents the amount of brightness of a picture per unit area. Specifically, the density of the amount of light passing through the normal direction of the screen. The unit is [CD / m2] or nit(1 nit = CD / m2).Brightness depends on the amount of light passing through the LCD and color film, and the brightness of the backlight.   LCD backlight requirements: The liquid crystal should have good transmittance; light weight; It should be thin and not easy to damage; The area light source with uniform brightness is the best; Low cost; The light color is pleasing to the eye, the primary color is rich, and the brightness can be adjusted; Low power consumption and easy power supply

Four core components of digital signage

Digital signage is a problem that we have discussed more recently, because digital signage is a relatively advanced identification product, and it is also a direction of the development of the sign industry. Therefore, it is reasonable for us to analyze the key points of digital signage. On the one hand, we can strengthen the promotion of digital signage. On the other hand, we can also help the promotion of digital signage. Today, our theme is an integral part of digital signage, that is to say, digital signage. What are the parts? We sorted out the following 4 parts: 1. The shell part, the shell is the part that we can see intuitively. The digital signage is not just a screen. The digital signage we see in reality will be in various shapes, looks very beautiful and generous, not alone The display, therefore, this shell has a very important decorative role. Although it does not help digital signage in terms of function, digital signage is also part of the entire identification system. Of course, the outline of the shape needs to be consistent with the overall style, so , This shell is essentially as important as other identification products. 2. Display, what we have a deeper understanding of digital signage at this stage should be the touch screen. This is a typical display device and an important link between digital signage and users. 3. The operating system and the shell have no soul, and the display itself has no soul.

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