{"id":2028,"date":"2022-03-23T15:18:36","date_gmt":"2022-03-23T22:18:36","guid":{"rendered":"https:\/\/www.crystalfontz.com\/blog\/?post_type=encyclopedia&#038;p=2028"},"modified":"2022-08-17T13:42:17","modified_gmt":"2022-08-17T20:42:17","slug":"rgb","status":"publish","type":"encyclopedia","link":"https:\/\/www.crystalfontz.com\/blog\/glossary\/rgb\/","title":{"rendered":"RGB"},"content":{"rendered":"<p>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 &ldquo;on&rdquo; or &ldquo;off&rdquo;. A <a href=\"https:\/\/www.crystalfontz.com\/blog\/glossary\/24-bit-rgb\/\">24-bit data bus includes 8-bits\/color<\/a> meaning that 256 (2^8) possible values for each of Red, Green, and Blue or over 16.7 million (2^24) possible colors.<\/p>\n<p>In addition to <a href=\"https:\/\/www.crystalfontz.com\/blog\/glossary\/24-bit-rgb\/\" target=\"_self\" title=\"24-Bit RGB: Used to describe a clocked parallel TFT connection that uses 24 data lines (8 for Red, 8 for Green, 8 for Blue) as well as Hsync, Vsync data enable, and pixel clock to transfer data to the TFT. Theoretical color depth is 224 or 16,777,216 colors.\" class=\"encyclopedia\">24-bit RGB<\/a>, there is <a href=\"https:\/\/www.crystalfontz.com\/blog\/glossary\/18-bit-rgb\/\" target=\"_self\" title=\"18-Bit RGB describes a clocked parallel TFT connection that uses 18 data lines (6 for Red, 6 for Green, 6 for Blue) as well as Hsync, Vsync, data enable, and pixel clock to transfer image data to a TFT. The theoretical color depth is 218 or 262,144 colors as each of the 18 data bus&hellip;\" class=\"encyclopedia\">18-bit RGB<\/a> where each color has 6 lines, leading to approximately 262,000 possible colors. There is also <a href=\"https:\/\/www.crystalfontz.com\/blog\/glossary\/r5g6b5-or-565\/\">R5G6B5 or 565<\/a> which describes up to 65,000 colors.<\/p>\n<p>To sync and transfer the RGB data bus of different color lines, RGB also uses HSYNC, VSYNC, DE, and DOTCLK.<\/p>\n<p>One benefit of RGB is the impressive speed at which images can be transferred, especially as the number of pixels being used increases. A draw back of RGB is it requires simultaneous control of a large number of lines. This requires the use of an RGB controller. At Crystalfontz, we use the <a href=\"https:\/\/www.crystalfontz.com\/blog\/glossary\/eve\/\" target=\"_self\" title=\"EVE stands for Embedded Video Engine and refers to a graphic controller from Bridgetek\/FTDI. &nbsp; EVE graphic controllers are easy to use and can control the display, touch, backlight, and audio features of an embedded system, with each appearing to the host MCU as a memory-mapped SPI device. The host MCU sends commands and data&hellip;\" class=\"encyclopedia\">EVE<\/a> chip to bring up our RGB displays.<\/p>\n<p><a href=\"https:\/\/www.crystalfontz.com\/products\/product-search.php#%7B%22col_9%22%3A%7B%22flt%22%3A%22rgb%22%7D%2C%22filters_visibility%22%3Atrue%2C%22col_10%22%3A%7B%22hidden%22%3Atrue%7D%2C%22col_11%22%3A%7B%22hidden%22%3Atrue%7D%2C%22col_12%22%3A%7B%22hidden%22%3Atrue%7D%2C%22col_13%22%3A%7B%22hidden%22%3Atrue%7D%2C%22col_14%22%3A%7B%22hidden%22%3Atrue%7D%2C%22col_15%22%3A%7B%22hidden%22%3Atrue%7D%2C%22col_16%22%3A%7B%22hidden%22%3Atrue%7D%2C%22col_17%22%3A%7B%22hidden%22%3Atrue%7D%2C%22col_18%22%3A%7B%22hidden%22%3Atrue%7D%2C%22col_19%22%3A%7B%22hidden%22%3Atrue%7D%2C%22col_20%22%3A%7B%22hidden%22%3Atrue%7D%2C%22col_21%22%3A%7B%22hidden%22%3Atrue%7D%2C%22col_22%22%3A%7B%22hidden%22%3Atrue%7D%2C%22col_23%22%3A%7B%22hidden%22%3Atrue%7D%2C%22col_24%22%3A%7B%22hidden%22%3Atrue%7D%2C%22col_25%22%3A%7B%22hidden%22%3Atrue%7D%2C%22col_26%22%3A%7B%22hidden%22%3Atrue%7D%2C%22col_27%22%3A%7B%22hidden%22%3Atrue%7D%2C%22col_28%22%3A%7B%22hidden%22%3Atrue%7D%2C%22col_29%22%3A%7B%22hidden%22%3Atrue%7D%2C%22col_30%22%3A%7B%22hidden%22%3Atrue%7D%2C%22col_31%22%3A%7B%22hidden%22%3Atrue%7D%2C%22col_32%22%3A%7B%22hidden%22%3Atrue%7D%2C%22col_33%22%3A%7B%22hidden%22%3Atrue%7D%2C%22col_34%22%3A%7B%22hidden%22%3Atrue%7D%2C%22col_35%22%3A%7B%22hidden%22%3Atrue%7D%2C%22col_36%22%3A%7B%22hidden%22%3Atrue%7D%2C%22col_40%22%3A%7B%22hidden%22%3Atrue%7D%2C%22col_38%22%3A%7B%22hidden%22%3Atrue%7D%2C%22col_37%22%3A%7B%22hidden%22%3Atrue%7D%2C%22col_39%22%3A%7B%22hidden%22%3Atrue%7D%2C%22col_42%22%3A%7B%22hidden%22%3Atrue%7D%2C%22col_41%22%3A%7B%22hidden%22%3Atrue%7D%2C%22col_43%22%3A%7B%22hidden%22%3Atrue%7D%2C%22page_length%22%3A100%7D\">Click here for a list of Crystalfontz RGB displays<\/a>.<\/p>\n<p>For more on how RGB works, check out our blog post <a href=\"\/blog\/rgb-and-color-depth\/\">RGB and Color Depth<\/a>.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-2064\" src=\"https:\/\/www.crystalfontz.com\/blog\/wp-content\/uploads\/tft-1-300x176.jpg\" alt=\"\" width=\"300\" height=\"176\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>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 &#8220;on&#8221; or &#8220;off&#8221;. A [&hellip;]<\/p>\n","protected":false},"author":7,"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":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","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-2028","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>RGB - Crystalfontz LCD Glossary<\/title>\n<meta name=\"description\" content=\"RGB : The RGB interface transfers image data using a separate parallel line for each bit of color information. 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