In the last six months, major companies like Sony, TCL, Samsung, Konka, Huawei, Philips, and Sharp have launched new Mini LED backlighting products. Following Apple and Huawei’s releases of Mini LED backlight products last year, dozens of new items have officially hit the market. Along with the increase in product numbers, brands are focusing more on cost-effectiveness in pricing and marketing strategies. During the recently concluded 618 Shopping Festival, TCL and Samsung reported strong sales, and the market response was overwhelmingly positive.
Mini LED Backlighting Competes with OLED
As Mini LED backlighting competes directly with OLED technology, it is accelerating its commercialization. This rapid growth is driven by a critical balance between cost and technology, making the choice of packaging technology particularly crucial.
Focus Lighting‘s Role in Mini LED Backlighting
As a leading LED packaging company in China, Focus Lighting has been among the first to enter the Mini LED backlighting market. The company has consistently advanced key technologies and transformed scientific achievements, resulting in its Component Division now offering comprehensive Mini LED backlighting solutions that promote the commercialization of next-generation displays.
Mini POB: The Backbone of TVs and Monitors
Mini POB (Package on Board) is one of the mainstream Mini LED backlighting technologies, offering several packaging formats, including TOP bracket, Cake, and CSP. The primary process follows traditional packaging steps such as die bonding, wire bonding (face-up), packaging, testing, and sorting. Focus Lighting’s Component Division has designed a unique light source structure that provides wide-angle emission, meeting the demand for thin and lightweight display modules with high image quality and low costs. In the same size backlight module, the number of LEDs required is significantly reduced, effectively lowering backlight costs while achieving high production yields.
Currently, Focus Lighting’s Mini POB backlighting solutions cover various sizes, including 55-inch, 65-inch, and 75-inch TVs, as well as 27-inch, 31.5-inch, and 34-inch monitors. The driving architectures include “Separate Light and Drive,” “PM Integrated Light and Drive,” and “AM-Micro IC Integrated Light and Drive” options. Some of these solutions have already reached mass production and are being supplied to internationally renowned brands.
Mini COB: A Versatile Player for Tablets, Automotive Displays, and VR
Compared to Mini POB, Mini COB (Chip on Board) involves chip-level attachment, imposing higher technical demands on key processes and materials. In addition to traditional packaging steps, the Mini COB packaging process includes additional steps like SPI (solder paste inspection), AOI (appearance inspection), light-up testing (performance testing), and aging, effectively ensuring high yield rates.
Mini COB excels in performance due to its superior brightness, uniformity, and reliability. Focus Lighting’s Component Division uses a full array of high-efficiency chips combined with light-enhancing packaging techniques, while special die-bonding algorithms and packaging optimizations effectively address common issues like inadequate brightness, uneven lighting, and spotting.
From a packaging perspective, Focus Lighting’s Component Division uses dense chip arrays with a 2.0mm pitch paired with integrated packaging technology. These arrays are driven by either “PM Integrated Light and Drive” or “AM-Micro IC Integrated Light and Drive” systems, with an optical distance (OD) of 0mm or more. This makes Mini COB suitable for 75-inch TVs and 12.9-inch tablets. The division is also working to optimize light source costs, making the modules more affordable for consumers and accelerating the commercialization of Mini COB. As technological maturity across the industry chain improves, Mini COB may eventually expand into areas like medical displays, metaverse applications, and high-end ambient display decoration.
Growing Market Penetration of Mini LED Backlighting
From the launch of the world’s first TCL 8K Mini LED backlight TV to the wide range of Mini LED backlighting products available during this year’s 618 Shopping Festival, the penetration rate of Mini LED backlighting is steadily increasing. Both Mini POB and Mini COB are advancing rapidly across various size ranges, demonstrating significant market potential. Focus Lighting’s Component Division remains committed to a market-driven, technology-led approach, continually refining its technical solutions, addressing customer pain points, and collaborating with other industry players to drive commercialization.
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