为了再现出3d图象，研究人员令覆盖有金属层的材料沐浴在白光中，光中包含了可见光的所有波长(包括红、绿、蓝)。
To reproduce a 3d image, the researchers bathe the metal-sheathed material in ordinary white light, which contains all wavelengths of visible light (including red, blue, and green).
在白光中的颜色有红，橙，黄，绿，蓝和青。
The colors in white light are red, orange, yellow, green, blue and violet .
传统的方法是采用红、绿、蓝色多层叠合产生白光，但难以控制各基色的峰值强度。
Conventionally, red, green and blue (RGB) -emitting materials are simultaneously used to obtain white emission in OLED, but it is difficult to control the intensity of each RGB peak.
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