09_displays1_4 - CS 530 Introduction to Scientic...

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CS 530 Introduction to Scientifc Visualization Displays CS 530 - Introduction to Scientifc 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 Scientifc Visualization - 09/{22, 24}/2008 LCD Display Developed at SarnoFF Research Center in 1963 Sandwiched between polarizing flters and glass panels, liquid crystals are rod- shaped molecules that ±ow like liquid and bend light like crystal. The orientation oF the flters and panels determines how light passes through the crystals CS 530 - Introduction to Scientifc Visualization - 09/{22, 24}/2008 LCD Display (Color) To obtain color, use three flters…
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CS 530 - Introduction to Scientifc 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 (re±ective ). CS 530 - Introduction to Scientifc Visualization - 09/{22, 24}/2008 Projection Displays ²ront projection CS 530 - Introduction to Scientifc Visualization - 09/{22, 24}/2008 Projection Displays Rear projection CS 530 - Introduction to Scientifc Visualization - 09/{22, 24}/2008 Projection Displays ²our Fundamental types CRT LCD DLP LCOS
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CS 530 - Introduction to Scientifc Visualization - 09/{22, 24}/2008 CRT Projectors Pros: No fxed pixel feld – Fexible resolution Dark black and large color range Long bulb li±e Cons: Large and hot ²ragile Convergence CS 530 - Introduction to Scientifc Visualization - 09/{22, 24}/2008 LCD Projectors Pros Small and cheap High brightness Cons Short-li±e bulb High black-level Color calibration issues CS 530 - Introduction to Scientifc Visualization - 09/{22, 24}/2008 DLP Projectors Trademark by TI, 1987 Pros Per±ect geometric calibration High contrast Can be smaller Cons Color rainbow might be observable (e.g., photography) Color issues CS 530 - Introduction to Scientifc Visualization - 09/{22, 24}/2008 LCOS Projectors Newest technology Pros Higher contrast than LCD No spinning wheel ±or 3 panel systems Cons Same as LCD or DLP (?)
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Tiled Displays NxM rear or Front-Facing projectors “Borderless Displays” -- Princeton CS 530 - Introduction to Scientifc Visualization - 09/{22, 24}/2008 Volumetric Displays Perspecta 3D Display From Actuality Systems CS 530 - Introduction to Scientifc Visualization - 09/{22, 24}/2008 Volumetric Displays Pulsed inFrared laser display CS 530 - Introduction to Scientifc Visualization - 09/{22, 24}/2008 Volumetric Displays What are the core challenges to improving such displays? Occlusion: how to make something opaque?
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This note was uploaded on 10/24/2009 for the course CS 530 taught by Professor Staff during the Fall '08 term at Purdue University-West Lafayette.

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09_displays1_4 - CS 530 Introduction to Scientic...

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