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Production direction of LED backlight manufacturers
Release Date:
2020-04-04 12:03
Source:
www.yisitelens.com
Backlight Side-light power board development
As LED backlight technology continues to advance, side‑edge LED backlights are evolving from a single row of LEDs on the top and bottom to a single row on just one side. Typically, 32‑inch TVs with side‑edge LED backlights on both sides use roughly 120 to 150 LEDs. If the TV’s power board is redesigned to support a single row of LEDs on one side, the total number of LEDs can be reduced to between 80 and 100—though the exact reduction ultimately depends on the specific capabilities of the leading brands. With further technological progress, it is foreseeable that in the future, side‑edge LED backlights will shift from the longer edges (top or bottom) to the shorter edges (left or right), enabling even greater reductions in LED count.
Extended usage period
Reducing the number of LEDs used not only yields favorable effects on direct cost control but also brings other indirect benefits to the module. For example, lower LED usage can lead to a reduction in module temperature. Taking the aforementioned 32-inch LCD TV as an example, cutting the number of LEDs by roughly this amount could lower the module’s temperature by 10% to 15%. Although we cannot yet quantify, in a systematic cost‑allocation framework, exactly how much extending the service life of electronic components—and even the entire TV—would translate into monetary savings, it is clear from general engineering principles that a decrease in operating temperature will undoubtedly help prolong the lifespan of electronic parts. This advantage becomes even more pronounced in larger‑scale LED‑backlit TVs, where the total number of LEDs employed is correspondingly lower.
A broader perspective
In addition, the solution employing a high-efficiency color film also provides indirect support for the TV’s viewing angle. This is because the fundamental principle underlying the high-efficiency color film’s performance is to manipulate polarized light in… Backlight The module’s breathing‑style design features a vertical surface that extends all the way through the wired glass. By employing a high‑chromaticity film, this backlight module delivers roughly 30% greater color smoothness compared to conventional designs that lack an electro‑optical pulse damper. Thanks to its superior chromaticity—unlike standard prism films—it boosts saturation without sacrificing viewing angles, making such high‑efficiency color films highly sought after by video and advertising producers worldwide. As LCD TVs continue to grow in size, consumers are increasingly demanding wider viewing angles. When a premium 47‑inch LCD TV is placed in the living room, homeowners naturally expect that viewers seated at any position can enjoy the same exceptional picture quality.
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