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Grupo espacosaudeintegral

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3840x2160 4k Resolution Desktop 4k Ultra HD Wal...

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Most of the new M+ technology was employed on 4K TV sets which led to a controversy after tests showed that the addition of a white sub pixel replacing the traditional RGB structure would reduce the resolution by around 25%. After tests done by Intertek in which the technical aspects of LG M+ TVs were analyzed and they concluded that "the addressable resolution display is 2,880 X 2,160 for each red, green, blue", in other words, the LG TVs were technically 2.8K as it became known in the controversy.[29][30] Although LG Display has developed this technology for use in notebook display, outdoor and smartphones, it is more popular in the TV market due to the supposed 4K UHD marketed resolution but still being incapable of achieving true 4K UHD resolution as defined by the CTA as 3840x2160 active pixels with 8-bit per color. This negatively impacts the rendering of text, making it a bit fuzzier, which is especially noticeable when a TV is used as a PC monitor.[31][32][33][34][35]

In 1984, Hitachi released the CMOS graphics processor ARTC HD63484, which was capable of displaying up to 4K resolution when in monochrome mode.[71] The resolution was targeted at the bit-mapped desktop publishing market.[71] The first commercially available 4K camera for cinematographic purposes was the Dalsa Origin, released in 2003.[72][73] 4K technology was developed by several research groups in universities around the world, such as University of California, San Diego, CALIT2, Keio University, Naval Postgraduate School and others that realized[74] several demonstrations in venues such as IGrid in 2004 and CineGrid. YouTube began supporting 4K for video uploads in 2010 as a result of leading manufacturers producing 4K cameras.[75] Users could view 4K video by selecting "Original" from the quality settings until December 2013, when the 2160p option appeared in the quality menu.[76] In November 2013, YouTube began to use the VP9 video compression standard, saying that it was more suitable for 4K than High Efficiency Video Coding (HEVC). Google, which owns YouTube, developed VP9.[75]

So-called 4K UHD are used to describe displays or content whose width reaches the 4,000-pixel range. However, unlike Full HD, 4K UHD resolutions have some differences for different professional fields, and there are a variety of width x height specs. Take displays commonly seen in households for example, 3840x2160 and 4096x2160 are two of the most prevalent 4K UHD specs. Yet, in recent years, 3840x2160 have gradually become the mainstream, and only few products still have a resolution of 4096x2160.

But although 4K OLED panels have been all the rage for several years in the TV market (and are increasingly popular laptop displays), we've seen only a few OLED computer monitors, including the professional-level Asus ProArt PQ22UC(Opens in a new window) (a 21.6-inch 4K panel priced at $3,999) and the gigantic Alienware 55 OLED. Considering OLED's burn-in potential and relatively low peak brightness, we rated the latter as more of an OLED TV that happens to run at 120Hz instead of 60Hz, rather than something you'd likely use as your desktop's daily driver. (The newer Alienware 34 QD-OLED has lower 3,440-by-1,440-pixel resolution.) 59ce067264


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