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In this way, an intrinsic twist with optional pitch between that of the chiral component and infinity can be created.
The only limitation arises from the following fact. That is, for too small pitch, the structure may change to one which is periodic in a direction parallel to the cell walls.
This ‘stripe structure’ was discovered earlier by Chigrinov. This effect limits the twist to 〜 240° , the bi-stable situation can’t be used. The twist angles in commercial displays are in the range 180 〜 240° .
