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09_displays1_4

09_displays1_4 - CS 530 Introduction to Scientic...

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CS 530 Introduction to Scientific Visualization Displays September 22 & 24, 2009 CS 530 - Introduction to Scientific Visualization - 09/{22, 24}/2008 Overview LCD/Plasma Displays Projection Displays Tiled Displays Volumetric Displays Head-mounted Displays Arbitrary Surface Displays Geometric and Radiometric Calibration CS 530 - Introduction to Scientific Visualization - 09/{22, 24}/2008 LCD Display Developed at Sarnoff Research Center in 1963 Sandwiched between polarizing filters and glass panels, liquid crystals are rod- shaped molecules that flow like liquid and bend light like crystal. The orientation of the filters and panels determines how light passes through the crystals CS 530 - Introduction to Scientific Visualization - 09/{22, 24}/2008 LCD Display (Color) To obtain color, use three filters…
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CS 530 - Introduction to Scientific Visualization - 09/{22, 24}/2008 Plasma Displays Plasma uses gas and phosphors and always emits light In contrast, LCDs emit light when a backlight is used, or only ambient light if not used (reflective ). CS 530 - Introduction to Scientific Visualization - 09/{22, 24}/2008 Projection Displays Front projection CS 530 - Introduction to Scientific Visualization - 09/{22, 24}/2008 Projection Displays Rear projection CS 530 - Introduction to Scientific Visualization - 09/{22, 24}/2008 Projection Displays Four fundamental types CRT LCD DLP LCOS
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CS 530 - Introduction to Scientific Visualization - 09/{22, 24}/2008 CRT Projectors Pros: No fixed pixel field – flexible resolution Dark black and large color range Long bulb life Cons: Large and hot Fragile Convergence CS 530 - Introduction to Scientific Visualization - 09/{22, 24}/2008 LCD Projectors Pros Small and cheap High brightness Cons Short-life bulb High black-level Color calibration issues CS 530 - Introduction to Scientific Visualization - 09/{22, 24}/2008 DLP Projectors Trademark by TI, 1987 Pros Perfect geometric calibration High contrast Can be smaller Cons Color rainbow might be observable (e.g., photography) Color issues CS 530 - Introduction to Scientific Visualization - 09/{22, 24}/2008 LCOS Projectors Newest technology Pros Higher contrast than LCD No spinning wheel for 3 panel systems Cons Same as LCD or DLP (?)
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CS 530 - Introduction to Scientific Visualization - 09/{22, 24}/2008 Tiled Displays NxM rear or front-facing projectors “Borderless Displays” -- Princeton CS 530 - Introduction to Scientific Visualization - 09/{22, 24}/2008 Volumetric Displays Perspecta 3D Display from Actuality Systems CS 530 - Introduction to Scientific Visualization - 09/{22, 24}/2008 Volumetric Displays Pulsed infrared laser display CS 530 - Introduction to Scientific Visualization - 09/{22, 24}/2008 Volumetric Displays What are the core challenges to improving such displays?
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