High-Performance Addressing
High-performance addressing (HPA) is an LCD A liquid-crystal display (LCD) is a flat-panel display or other electronically modulated optical device that uses the light-modulating properties of liquid crystals combined with polarizers. Liquid crystals do not emit light directly but in ... passive-matrix display technology commonly found on low-end portable computers; versions of HPA have been developed by Hitachi and by Sharp. 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. 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. References Display technology {{Compu-graphics-stub ...
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