{"id":2445,"date":"2025-06-18T07:15:20","date_gmt":"2025-06-18T14:15:20","guid":{"rendered":"https:\/\/www.crystalfontz.com\/blog\/?post_type=encyclopedia&#038;p=2445"},"modified":"2025-06-18T07:15:20","modified_gmt":"2025-06-18T14:15:20","slug":"chromaticity","status":"publish","type":"encyclopedia","link":"https:\/\/www.crystalfontz.com\/blog\/glossary\/chromaticity\/","title":{"rendered":"Chromaticity"},"content":{"rendered":"<p data-start=\"0\" data-end=\"158\"><strong data-start=\"0\" data-end=\"16\">Chromaticity<\/strong> is a term used to describe the quality of a color regardless of its luminance (brightness). It defines color in terms of two main components:<\/p>\n<ol data-start=\"160\" data-end=\"304\">\n<li data-start=\"160\" data-end=\"215\">\n<p data-start=\"163\" data-end=\"215\"><strong data-start=\"163\" data-end=\"170\">Hue<\/strong> &ndash; the type of color (red, green, blue, etc.)<\/p>\n<\/li>\n<li data-start=\"216\" data-end=\"304\">\n<p data-start=\"219\" data-end=\"304\"><strong data-start=\"219\" data-end=\"233\">Saturation<\/strong> &ndash; the intensity or purity of the color (how vivid or washed-out it is)<\/p>\n<\/li>\n<\/ol>\n<p data-start=\"306\" data-end=\"388\">Together, these describe how a color <em data-start=\"343\" data-end=\"350\">looks<\/em> without considering how bright it is.<\/p>\n<hr data-start=\"390\" data-end=\"393\">\n<h3 data-start=\"395\" data-end=\"430\">Chromaticity in Technical Terms<\/h3>\n<p data-start=\"432\" data-end=\"832\">In color science, chromaticity is often represented using <strong data-start=\"490\" data-end=\"518\">chromaticity coordinates<\/strong>, typically in a two-dimensional space derived from a color model like the <strong data-start=\"593\" data-end=\"617\">CIE 1931 color space<\/strong>. The most common diagram is the <strong data-start=\"650\" data-end=\"681\">CIE xy chromaticity diagram<\/strong>, where each point represents a specific hue and saturation. White light, for example, sits near the center, while saturated colors lie near the edges.<\/p>\n<hr data-start=\"834\" data-end=\"837\">\n<h3 data-start=\"839\" data-end=\"875\">How Chromaticity Applies to LCDs<\/h3>\n<p data-start=\"877\" data-end=\"1005\">In LCDs (Liquid Crystal Displays), chromaticity is crucial in defining and controlling how colors appear. Here&rsquo;s how it applies:<\/p>\n<h4 data-start=\"1007\" data-end=\"1033\">1. <strong data-start=\"1015\" data-end=\"1033\">Color Accuracy<\/strong><\/h4>\n<ul data-start=\"1034\" data-end=\"1265\">\n<li data-start=\"1034\" data-end=\"1130\">\n<p data-start=\"1036\" data-end=\"1130\">Manufacturers specify the chromaticity coordinates of an <a href=\"https:\/\/www.crystalfontz.com\/blog\/glossary\/lcd\/\" target=\"_self\" title=\"LCD stands for Liquid Crystal Display. An LCD is composed of two pieces of glass with a thin layer of liquid crystals between the glass layers. When a voltage is applied to the glass, the orientation of the crystals can be changed. This change in the crystal's orientation (called polarization) will make either a dark&hellip;\" class=\"encyclopedia\">LCD<\/a>&rsquo;s red, green, and blue subpixels.<\/p>\n<\/li>\n<li data-start=\"1131\" data-end=\"1265\">\n<p data-start=\"1133\" data-end=\"1265\">Accurate chromaticity ensures that colors on the screen match what&rsquo;s expected or intended (e.g., in sRGB or Adobe <a href=\"https:\/\/www.crystalfontz.com\/blog\/glossary\/rgb\/\" target=\"_self\" title='The RGB interface transfers image data using a separate parallel line for each bit of color information. For larger color depths, more lines have to be independently controlled. Each line represents a 2x multiplier on potential colors that can be described. Monochrome displays have just 1-bit color and pixels are either \"on\" or \"off\". A&hellip;' class=\"encyclopedia\">RGB<\/a> color spaces).<\/p>\n<\/li>\n<\/ul>\n<h4 data-start=\"1267\" data-end=\"1298\">2. <strong data-start=\"1275\" data-end=\"1298\">Display Calibration<\/strong><\/h4>\n<ul data-start=\"1299\" data-end=\"1535\">\n<li data-start=\"1299\" data-end=\"1421\">\n<p data-start=\"1301\" data-end=\"1421\">Chromaticity measurements are used during calibration to ensure uniform and accurate color rendering across the display.<\/p>\n<\/li>\n<li data-start=\"1422\" data-end=\"1535\">\n<p data-start=\"1424\" data-end=\"1535\">Calibration tools adjust voltage and light intensity to shift pixel colors toward desired chromaticity targets.<\/p>\n<\/li>\n<\/ul>\n<h4 data-start=\"1537\" data-end=\"1560\">3. <strong data-start=\"1545\" data-end=\"1560\">Color Gamut<\/strong><\/h4>\n<ul data-start=\"1561\" data-end=\"1806\">\n<li data-start=\"1561\" data-end=\"1725\">\n<p data-start=\"1563\" data-end=\"1725\">The <strong data-start=\"1567\" data-end=\"1582\">color gamut<\/strong> of an LCD is defined by the triangle formed by the chromaticity coordinates of its red, green, and blue primaries on the chromaticity diagram.<\/p>\n<\/li>\n<li data-start=\"1726\" data-end=\"1806\">\n<p data-start=\"1728\" data-end=\"1806\">A wider triangle means the display can represent more vivid and varied colors.<\/p>\n<\/li>\n<\/ul>\n<h4 data-start=\"1808\" data-end=\"1844\">4. <strong data-start=\"1816\" data-end=\"1844\">Manufacturing Tolerances<\/strong><\/h4>\n<ul data-start=\"1845\" data-end=\"2109\">\n<li data-start=\"1845\" data-end=\"1973\">\n<p data-start=\"1847\" data-end=\"1973\">Small differences in materials or <a href=\"https:\/\/www.crystalfontz.com\/blog\/glossary\/backlight\/\" target=\"_self\" title=\"A backlight is used behind the LCD glass to allow the LCM to be read in dark conditions. The vast majority of backlights are now LED. Historically there were also EL (electroluminescent) and CCFL (Cold Cathode Fluorescent Light) backlights, but as LED efficiency has increased and cost has decreased, EL and CCFL backlights have all&hellip;\" class=\"encyclopedia\">backlight<\/a> characteristics can shift chromaticity, affecting visual consistency across units.<\/p>\n<\/li>\n<li data-start=\"1974\" data-end=\"2109\">\n<p data-start=\"1976\" data-end=\"2109\">Displays with tighter chromaticity control are more consistent and desirable for applications like medical imaging or graphic design.<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"2111\" data-end=\"2114\">\n<h3 data-start=\"2116\" data-end=\"2127\">Summary<\/h3>\n<p data-start=\"2129\" data-end=\"2381\">Chromaticity is essential for understanding and managing <strong data-start=\"2186\" data-end=\"2208\">color reproduction<\/strong> in LCDs. It impacts how displays are <strong data-start=\"2246\" data-end=\"2258\">designed<\/strong>, <strong data-start=\"2260\" data-end=\"2274\">calibrated<\/strong>, and <strong data-start=\"2280\" data-end=\"2293\">evaluated<\/strong> for quality, and is key to ensuring colors look <strong data-start=\"2342\" data-end=\"2365\">correct, consistent<\/strong>, and <strong data-start=\"2371\" data-end=\"2380\">vivid<\/strong>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Chromaticity is a term used to describe the quality of a color regardless of its luminance (brightness). It defines color in terms of two main components: Hue \u2013 the type of color (red, green, blue, etc.) Saturation \u2013 the intensity or purity of the color (how vivid or washed-out it is) Together, these describe how [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"class_list":["post-2445","encyclopedia","type-encyclopedia","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Chromaticity - Crystalfontz LCD Glossary<\/title>\n<meta name=\"description\" content=\"Chromaticity : Chromaticity is a term used to describe the quality of a color regardless of its luminance (brightness). 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