![]() ![]() Samsung and Planar Systems previously made transparent OLED displays but discontinued them in 2016. This display technology was used by Valtra in 2017 to develop its SmartGlass Head-Up Display on tractors. LUMINEQ transparent displays manufactured by Beneq are Thin Film Electroluminescent Displays enabled by Atomic layer deposition (ALD). LG, Prodisplay, and taptl, for example, use conventional LCD technology. In the later part of the 2010s, transparent OLEDs started to appear. ![]() LG demonstrated a transparent LCD in 2015. ![]() Not long after, UK-based Crystal Display Systems began to sell transparent LCDs remanufactured from conventional LCD displays. Samsung released their first transparent LCD in late 2011, and Planar published a report on a prototype electroluminescent transparent display in 2012. An early commercial transparent display was the Sony Ericsson Xperia Pureness released in 2009, although it did not succeed in the market due to the screen not being visible outside or in brightly lit rooms. The development of practical transparent displays accelerated rapidly around the end of first decade of the 21st century. Emissive display technologies achieve partial transparency either by interspersing invisibly small opaque emitter elements with transparent areas or by being partially transparent. Some display systems combine both absorptive and emissive devices to overcome the limitations inherent to either one. Absorptive devices work by selectively reducing the intensity of the light passing through the display, while emissive devices selectively add to the light passing through the display. Transparent displays embed the active matrix of the display in the field of view, which generally allows them to be more compact than combination-based systems.īroadly, there are two types of underlying transparent display technology, absorptive (chiefly LCDs) and emissive (chiefly electroluminescent, including LEDs and "high-field" emitters). They should be distinguished from image-combination systems which achieve visually similar effects by optically combining multiple images in the field of view. The main applications of this type of display are in head-up displays, augmented reality systems, digital signage, and general large-scale spatial light modulation. A see-through display or transparent display is an electronic display that allows the user to see what is shown on the screen while still being able to see through it. ![]()
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