TECH - Fujitsu unveils low power flexible display
The display uses passive-matrix, reflective type cholesteric liquid crystal technology. Two 3.8-inch diagonal QVGA prototypes, a monochrome display and a color version able to display 512 colors, were shown.
Differing from flat displays that have color filters comprising red, green and blue pixels, the paper display has a three-layer structure measuring 0.8 mm thick. One layer consists of two 0.125 mm-thick films sandwiching liquid crystal. Cholesteric crystals in each layer are twisted in a certain pitch to reflect only red, green or blue light respectively.
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