Chapter 13

HDR Display Characterization and Modeling

S. Forchhammer*; J. Korhonen*; C. Mantel*; X. Shu; X. Wu    * Technical University of Denmark, Bristol, Denmark McMaster University, Hamilton, ON, Canada

Abstract

The chapter characterizes and presents models of high dynamic range (HDR) display based on backlight technology. The focus is on LCDs with LED backlight with local dimming. For images, the leakage of liquid crystal elements is the major defect restricting the local contrast of the display, and for high contrast images it results in dark parts looking grayish. Dimming of LED backlight may be used to attenuate leakage and improve contrast, leading to clipping. A model of an LCD with LED backlight with leakage and clipping is ...

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