COLORIMETRIC MEASUREMENTS OF THE SOME COMPUTER MONITORS

Abstract

Some features of photometric monitors, including the ability to color reproduction, are an important consideration qualifying the display for specific tasks. The paper contains the results of the survey colorimetric measurements of several monitors, used today as displays on computers. Domain of study included yet used a CRT monitor, LCD display with fluorescent backlight matrix and modern LCD display with LEDs. Currently, manufacturers of computer monitors use 32- bit color . This means that the computer monitor is able to display up to 16.8 million different shades of colors , including their transparency. Selected for study monitors ( CRT technology , LCD and LED ) have been tested for color display of naturally occurring counterparts . Used in studies of color analyzer (using a colorimetric method , the aim of which is to measure the chromaticity components , allowing for the appointment of the chromaticity coordinates x, y color test ) was used to measure parameters : color box (gamut ) , uniformity of illumination , the gamma curve and color temperature uniformity. Field of colors ( gamut ) of the monitor is the area ( triangle) located in the color space whose vertices are defined extreme primaries . The shape of the gamut , designated for coordinates of the current European standard PAL / SECAM. The colorimetric test monitors were evaluated on the basis of measurements on gamut’s field, measuring uniformity of backlight matrix, the color temperature of the screen and determined of gamma curves.