High-Performance Addressing

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High-Performance Addressing (HPA) was developed by Hitachi and is an LCD Passive-matrix display technology commonly found on low-end portable computers. HPAs have higher response rates and contrast, and are capable of displaying up to 16-million colors; however, they lack the crisp display that is found with an Active-matrix display.[1] 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.[2]


  1. ^ "High-Performance Addressing - HPA". Computerhope.com. Retrieved 2011-01-30. 
  2. ^ "Input/Output Systems and Peripheral Devices" (PDF). utcluj.ro. 2010-11-18. Retrieved 2011-01-30.