Introduction to Color - Brown University

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CS123 | INTRODUCTION TO COMPUTER GRAPHICS Inside a CRT Phosphor's light output decays exponentially; thus refresh at >= 60Hz Andries van Dam Cool pictures: http://www.pctechguide.com/06crtmon.htm Color Block diagram : http://www.tpub.com/neets/book18/ 24/57
CS123 | INTRODUCTION TO COMPUTER GRAPHICS Inside an LCD Backlight made by LEDs and diffuser layer provides (whitish) flood lighting of entire screen Polarizer filters light, allows only certain light with desired direction to pass TFT matrix: transistors and capacitors at each pixel to change the voltage that bends the light Liquid Crystal controls direction of light, allow between 0 and 100% through second polarizer Color Filter gives each subpixel in (R,G,B) triad its color. Subpixel addressing used in antialiasing Video: http://www.youtube.com/watch?v=jiejNAUwcQ8 Picture source http://www.teac.com.au/pages/howdoesanlc dwork Andries van Dam Color 25/57
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Introduction to Color - Brown University

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