High-performance addressing (HPA) is an LCD passive-matrix display technology commonly found on low-end portable computers; versions of HPA have been developed by Hitachi and by Sharp.[1] HPA enables higher response rates and contrast, displaying up to 16-million colors; however, HPA displays lack the crispness that is found with an Active-matrix display.[2] HPA uses a technique called multiline addressing in which the incoming video signal is analyzed and the image is refreshed with a frequency as high as possible.[1]
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