{"id":317,"date":"2016-05-17T15:35:51","date_gmt":"2016-05-17T22:35:51","guid":{"rendered":"https:\/\/www.crystalfontz.com\/blog\/?post_type=encyclopedia&#038;p=317"},"modified":"2018-09-26T17:28:23","modified_gmt":"2018-09-27T00:28:23","slug":"amoled","status":"publish","type":"encyclopedia","link":"https:\/\/www.crystalfontz.com\/blog\/glossary\/amoled\/","title":{"rendered":"AMOLED"},"content":{"rendered":"<p>AMOLED is Active Matrix <a href=\"https:\/\/www.crystalfontz.com\/blog\/glossary\/oled\/\" target=\"_self\" title=\"OLED stands for Organic Light Emitting Diode. OLEDs are used to make OLED Displays, which can either be PMOLED (Passive Matrix OLED) or AMOLED (Active Matrix OLED). Crystalfontz carries a full line of OLED modules. Detailed Definition What makes OLEDs useful for display construction is that they can be fabricated in bulk. For instance, to&hellip;\" class=\"encyclopedia\">OLED<\/a>. An Active Matrix OLED uses a <a href=\"https:\/\/www.crystalfontz.com\/blog\/glossary\/tft\/\" target=\"_self\" title='TFT stands for Thin Film Transistor. TFTs are also known as \"Active Matrix TFT LCD modules\" and have an array of these thin film transistors fabricated on the glass that makes the LCD. There is one of these transistors for each pixel on the LCD. For a typical small color TFT LCD with a resolution&hellip;' class=\"encyclopedia\">TFT<\/a> (Thin Film Transistor) transistor-per-pixel architecture. Using a transistor-per-pixel allows higher resolution displays to be made and avoids the problems associated with high <a href=\"https:\/\/www.crystalfontz.com\/blog\/glossary\/duty-cycle\/\" target=\"_self\" title=\"The duty cycle, also known as a duty ratio or multiplex rate, is the fraction of total time that each row of the LCD is addressed. Quick Explanation A pixel or segment in an LCD is turned on by an AC voltage applied to it. On a very simple display, such as a 7-segment display,&hellip;\" class=\"encyclopedia\">duty cycle<\/a> passive displays.<\/p>\n<h3>Detailed Definition<\/h3>\n<p>In an AMOLED, once a pixel is turned on, it can stay on for the entire frame time. Compare this to a 1\/64 duty cycle <a href=\"https:\/\/www.crystalfontz.com\/blog\/glossary\/pmoled\/\" target=\"_self\" title=\"PMOLED is Passive Matrix OLED -- Passive Matrix Organic Light Emitting Diode. Passive Matrix refers to the arrangement of the driving electrodes in the OLED display. In PMOLED displays, there is an array of horizontal conductors and an array of vertical conductors, with the OLED material between them. A pixel is formed where the vertical&hellip;\" class=\"encyclopedia\">PMOLED<\/a> (Passive Matrix OLED) where a pixel can be on at most 1\/64 of the frame time.<\/p>\n<p>Active Matrix OLEDs have fantastic resolution, great brightness, and super viewing angles. Active Matrix OLEDs are typically full color using red, green, and blue sub-pixels.<\/p>\n<p>Additionally, since there is no <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> required, an OLED can be made extremely thin.<\/p>\n<figure id=\"attachment_323\" aria-describedby=\"caption-attachment-323\" style=\"width: 555px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-323 size-full\" src=\"https:\/\/www.crystalfontz.com\/blog\/wp-content\/uploads\/AMOLED_Single_RGB_Pixel.jpg\" alt=\"AMOLED Single RGB Pixel - www.crystalfontz.com\" width=\"555\" height=\"446\" srcset=\"https:\/\/www.crystalfontz.com\/blog\/wp-content\/uploads\/AMOLED_Single_RGB_Pixel.jpg 555w, https:\/\/www.crystalfontz.com\/blog\/wp-content\/uploads\/AMOLED_Single_RGB_Pixel-250x201.jpg 250w, https:\/\/www.crystalfontz.com\/blog\/wp-content\/uploads\/AMOLED_Single_RGB_Pixel-120x96.jpg 120w\" sizes=\"auto, (max-width: 555px) 100vw, 555px\"><figcaption id=\"caption-attachment-323\" class=\"wp-caption-text\">AMOLED Single <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> Pixel<\/figcaption><\/figure>\n<h3>AMOLED Display Manufacturing<\/h3>\n<p>Manufacturing of AMOLED displays is much more difficult than PMOLED displays. Currently, this has AMOLED displays priced much higher than a similar <a href=\"https:\/\/www.crystalfontz.com\/c\/tft-lcd-displays\/25\">backlit color TFT LCD display<\/a>.<\/p>\n<p>As the technology matures, high volume production will likely drive the cost of AMOLEDs displays lower, perhaps approaching TFT <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> displays.<\/p>\n<h3>Questions?<\/h3>\n<p>For assistance in determining what module is the best one for your application, please&nbsp;<a href=\"https:\/\/www.crystalfontz.com\/contact.php\">contact our knowledgeable and friendly support staff<\/a> by email, phone, or chat. We are here to answer any questions that you may have about OLEDs and all available modules we carry.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>AMOLED is Active Matrix OLED. An Active Matrix OLED uses a TFT (Thin Film Transistor) transistor-per-pixel architecture. Using a transistor-per-pixel allows higher resolution displays to be made and avoids the problems associated with high duty cycle passive displays. Detailed Definition In an AMOLED, once a pixel is turned on, it can stay on for the [&hellip;]<\/p>\n","protected":false},"author":6,"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-317","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>AMOLED - Crystalfontz LCD Glossary<\/title>\n<meta name=\"description\" content=\"AMOLED : AMOLED is Active Matrix OLED. 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