Xgimi, a Chinese technology company that specializes in the design and manufacture of projectors, posted an technology update on some new technology that it has developed to overcome the shortcomings of monochrome lasers and three-color lasers, and full-color LEDs, in delivering crisp, bright images. The name of the proprietary development is Dual Light technology. Products using the new technology will be available in this summer.
The monochrome laser was the first projection technology adopted by Xgimi, which, while offering improved brightness, struggled to deliver on color and picture quality. The three-color laser, a potential game-changer, unfortunately, presented a set of significant issues: a speckle problem resulting in grainy images, and a color fringing problem causing color separation. Both issues culminated in a less than ideal viewing experience, and the inherent characteristics of the three-color laser made these problems virtually impossible to overcome.
Subsequently, Xgimi turned to full-color LEDs. Although they offered a better viewing experience and superior color performance compared to monochrome lasers, they struggled to deliver the level of brightness Xgimi desired.
Xgimi’s Dual Light technology, its latest solution, cleverly merges the strengths of LED and laser light sources, effectively compensating for each other’s weaknesses. The LED light source excels in delivering comfort and color, but lacks brightness. Conversely, the laser light source provides high brightness and commendable color, but its narrow wavelength band can cause viewer discomfort. By integrating these two light sources, Xgimi’s Dual Light technology achieves high color accuracy, ultra-high brightness, and ensures a comfortable viewing experience.
However, the fusion of these two light sources wasn’t without its challenges. Initially, Xgimi had to create a unique full-color LED lamp diode to match the laser’s special wavelength band. Following this, they had to design a new five-channel laser LED hybrid light path, enabling the perfect integration of the two light sources. Partnering with Zeon Group and Bright Company, Xgimi managed to design and manufacture new materials, including a revolutionary glass aspheric molded lens.
Xgimi’s Dual Light technology has received certification from several major institutions, including TÜV Rheinland in Germany. It consistently achieves an average Delta E (a measure of color difference) of around 1 in mass production, a level that rivals professional color monitors.
