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The double cell uses two orthogonal homogenous cells, the first GH layer is responsible for one polarization and the second layer for the other polarization.
All the three cells in the above have their own pros and cons. The typical performance of a GH LCD is 50 〜 60 % reflectivity, 5:1 contrast ratio, 〜 ± 60° viewing angle and 50 〜 80 ms response time.
Low power consumption is an main attractive character of a GH display.
