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3D printing technology led by domestic brands

Release time:

2025-01-10 17:04

3D printing technology led by domestic brands

LCD-based stereolithography, also known as mask-based stereolithography, is an emerging 3D printing technology. Similar to SLA and DLP technologies, LCD-based stereolithography uses a light source to cure liquid resin; however, its distinctive feature lies in the fact that the light source is controlled by an LCD screen. This technology leverages the imaging principle of liquid crystal displays: a computer program supplies image signals that create selectively transparent areas on the LCD screen. Under the irradiation of ultraviolet (UV) light, the UV rays passing through the transparent areas of the LCD screen form a UV-light image region, causing the liquid resin exposed to these areas to solidify. Meanwhile, the parts of the LCD screen that remain opaque cannot be cured by UV light. The entire process proceeds layer by layer according to a pre-set 3D model; by stacking these cured resin layers one after another, the final complete 3D-printed object is gradually constructed.

Since its introduction in 2013, LCD-based light-curing additive manufacturing technology has been developed based on DLP technology, significantly reducing costs and making this light-curing printing technique more accessible. Although the precision of LCD technology can rival that of DLP, its greatest strengths lie in its open-source nature and the low cost of its core components.

LCD printers are favored for their affordability and high resolution. However, LCD screens have a relatively short lifespan and need to be replaced periodically. Compared with SLA and DLP technologies, LCD technology stands out for its lower cost, higher printing speed, and superior printing accuracy. The LED parallel matrix light source, used as the illumination system in LCD technology, currently relies mostly on domestically developed technologies, which has enhanced China's competitiveness in the field of LCD-based photopolymerization 3D printing. According to market statistics, LCD photopolymerization 3D printers manufactured in China hold a significant share of the global market—particularly in the consumer-grade LCD 3D printer segment, where Chinese brands virtually dominate.

Initially, LCD light-curing 3D printing technology primarily served the consumer market. Thanks to its advantages—such as low cost, high efficiency, and high precision—it attracted considerable attention from many users. As the technology continues to advance and the market keeps expanding, LCD light-curing 3D printing has begun to make inroads into the industrial market, offering manufacturing industries more efficient and high-quality 3D printing solutions.

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Third-generation light-curing 3D printing technology

Second-generation light-curing 3D printing technology