Layers of material which work as filters, electrodes, transistors and the liquid crystal itself are deposited onto a thin glass plate to form a sandwich that is covered with another pane of glass.
滤光镜，电极，晶体管，液晶体本身以层状放置在一片薄玻璃板上，上面还盖着另外一片玻璃板，这类似于三明治的结构。
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