A light-emitting book with images of Chinese opera culture is exhibited in the media center for the upcoming Belt and Road Forum for International Cooperation in Beijing, May 12, 2017.The exhibition stands are made of light-emitting material and optical control units, making photos appear more colorful. The light-emitting plastic is a thin, flexible material that emits a soft white light after being powered on. It can also be used for auxiliary illumination. Compared with traditional light emitting materials, it is energy efficient, eco-friendly, safe, flexible, and convenient. (People’s Daily Online/Du Mingming)
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