Optical EngineeringOptical resonant system for measurement of liquid crystal display response times
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A novel method is reported by which the alignment response time of liquid crystals contained in a display may be measured by a relatively simple and inexpensive system. The method has the advantage that the output is in the frequency domain and is strongly intensity independent. The dependence of the resonance frequency of the system with temperature is measured, and it is envisaged that the system can be further miniaturized to serve as a compact optical temperature sensor.