Contrast optimization in matrix-addressed liquid crystal displays
- 1 January 1975
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Electron Devices
- Vol. 22 (1) , 22-24
- https://doi.org/10.1109/t-ed.1975.18066
Abstract
In a fast-scan mode of addressing a matrix of m rows and n columns, in which the columns are scanned, contrast is optimized by maximizing the ratio of the rms voltage at a selected intersection to that at a nonselected one. A simple derivation shows that the address-pulse amplitude should be taken proportional to n1/2. We apply this result to the twisted nematic case.Keywords
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