This involves adding a layer of coloured filters above the black-and-white capsules, so that they can change colour.

该技术要在黑白胶囊上方加一层彩色滤光片(coloured filters)，这样胶囊就能变色。

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One involves making the displays thinner so that the filters are closer to the capsules, so less light is lost.

Peruvemba先生说，一种方法是把显示屏变得更薄，这样可以让滤色镜更贴近微胶囊，减少光线流失。

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