and wherein, with the positive phase difference provided to convert linear polarized light into right handed circling polarized light or elliptic polarized light and the negative phase difference provided to convert {HEAD ~ linear polarized light} into left handed circling polarized light or {TAIL ~ elliptic polarized light}, the phase difference which the reflective liquid crystal display device in a black display state of the reflective liquid crystal display apparatus provides to the diffracted light occurring at the reflective liquid crystal display device is negative or zero 
into
and wherein , with the positive phase difference provided to convert linear polarized light into right handed circling polarized light or elliptic polarized light and the negative phase difference provided to convert { HEAD ~ linear polarized light } into left handed circling polarized light or { TAIL ~ elliptic polarized light } , the phase difference which the reflective liquid crystal display device in a black display state of the reflective liquid crystal display apparatus provides to the diffracted light occurring at the reflective liquid crystal display device is negative or zero
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