Zhengdao Optoelectronics develops automotive smart dimming films using three-state liquid crystal technology.
Suzhou Zhengdao Optoelectronic Materials Co., Ltd., known as Zhengdao Optoelectronics, researches, produces, and sells automotive smart dimming films. Founded in 2023, it is based in Changzhou, China. Its films switch among high-transparency, low-transparency, and opaque states. The company closed Series A funding in February 2026 from Hainan Huacui Enterprise Management, Kaisheng Southeast Venture Capital, and Changshu Guofa Venture Capital to support R&D, production capacity, and market expansion.
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