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In the single cell gap approach, the cell gap for R modes is equal to that for T modes and it’s optimized for R-mode.
As a result, the light transmittance for T-mode gets lower than 50% because the light only passes the LC layer once.
Meanwhile, in the double cell gap approach, the cell gap for T-pixels is twice that for R-pixels.
Besids, both R and T have high light efficiency. But, the response of T mode is four times slower than that of R mode.
