high-performance addressing

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. 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.{{cite web|url=http://www.computerhope.com/jargon/h/hpa.htm |title=High-Performance Addressing - HPA |publisher=Computerhope.com |date= |accessdate=2011-01-30}}

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.{{cite web|url=http://users.utcluj.ro/~baruch/media/siee/lecture/Lecture-IOS07.pdf |title=Input/Output Systems and Peripheral Devices |publisher=utcluj.ro |date=2010-11-18 |accessdate=2011-01-30 |url-status=dead |archiveurl=https://web.archive.org/web/20110722071900/http://users.utcluj.ro/~baruch/media/siee/lecture/Lecture-IOS07.pdf |archivedate=2011-07-22 }}