To obtain the dynamic driving parameters for cholesteric LCD in a systematic manner, its dynamic characteristics and then driving parameters should be measured and extracted respectively. Accordingly, this paper develops a real‐time dynamic characteristics measurement system and an automatic dynamic driving parameters extraction scheme. Satisfactory results can be obtained experimentally.
In this paper, an asymmetrical dynamic model of the luminescent property of phosphors is first proposed and developed by measuring the experimental data. Then, based on the model, a novel drive strategy is derived to fully exploit the persistence effect of phosphors for a 20‐inch CNT‐BLU. It turns out that the resulting illuminative efficiency can be increased by more than 74% as compared with the most recent pulse mode driving strategy.
PWM driving schemes for a 20" carbon nanotube field emission display (CNT-FED) are studied in this paper. One of their advantages is the inherent ability to linearize the gamma curves of CNT-FEDs to increase their gray levels and color accuracy. There are, however, some critical problems associated with PWM driving schemes for CNT-FED. After theoretical analysis of them, several solutions are proposed and experimentally evaluated.
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