7 inch 4k lcd panel free sample

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The Feelworld Lut7 monitor is a great find for this price. The 2200nit Touch Screen is a MUST HAVE. I have been able to use it on bright, sunny, beach days without the need for an additional sun-hood because of how bright it gets. That brightness will also save you on those cloudy, overcast days. On-camera monitors tend to throw back a harsh, almost mirror-like, reflection where the Feelworld Lut7 is clean and easy to see (see video for an example and an unboxing). The 7inch screen is nice because it allows you to pull up other items like RGB Parade, Vectorscopes, Grids, Audio Levels, etc. and still have plenty of room to monitor your video (again see video example). This monitor has a lot of the professional features you would find on much pricier models at a more affordable price. False Colors, RGB Parade, Wave, Vectorscope, Audio Bars, Audio and HMDI Out, LUT support...I could go on an on. Again, for this price range it is a great monitor!

With approximately 8,290,000 pixels, or about four times the pixels of a Full-HD display, images are highly detailed. This dynamic, large-screen display archives true-to-life, finely nuanced images. The 4K display is an excellent choice for meeting rooms where images are often viewed up close, and creates impressive ambience in signage applications for commercial facilities. It can be expected to attract considerable attention.

Conventional display panels are preset with display modes such as Standard and Dynamic. The SQ1 Series comes with an extensive display menu to let you select the most suitable mode for the content to be displayed and the viewing environment.

The SQ1 Series is capable of constant, 24/7 operation. It offers reliable use in public spaces where many people gather, such as train stations, airports, and shopping malls, as well as installation in control rooms. It is also equipped with a variety of input/output terminals for versatile applications. Furthermore, the 65-inch, 55-inch, and 49-inch models can be installed with a tilt up to 45 degrees for use in a variety of mounting situations.

The narrow bezel renders higher-impact images, further enhancing the 4K picture quality. Without being distracted by the bezel, the viewer becomes immersed in the eye-catching image.

Based on HDBaseT™ technology, DIGITAL LINK supports transmission of video, audio, and control commands through a single CAT5e or higher STP cable for distances of 150 m (492 ft) for Full HD video and 50 m (164 ft) for 4K* video.

* ET-YFB200G/YFB100G is not compatible with 4K signals. 150 m (492 ft) transmission available only with ET-YFB200G DIGITAL LINK Switcher for signals up to 1080/60p in Long Reach Mode.

By simply inserting a USB memory stick onto which content has been saved, playback automatically starts. Since it is 4K compatible, it easily provides 4K digital signage without having to use a PC or set-top box.

The SQ1 Series is equipped with the new Intel® SDM specification slot standard that supports 4K signals. Combined with the interface board, you can easily use a built-in PC and add various interfaces.

Split the content from image sources, and enlarge the display in a portrait orientation. There is no need to use a special device, such as a processor, while creating content from various images. Placing three TH-65SQ1 models vertically creates a display equivalent to 112 inches. This enables highly visible store signage.

* These functions on the 98/86-inch models are compatible with the Software Main Version 3.0000 or later. Please contact your sales representative with regard to details.

In addition to 4K multi screens, the SQ1 Series can display 2 screens, such as PinP and PbyP. This is ideal for checking details in various applications such as videoconferences, digital signage, and surveillance monitoring.

The iPhone 13 Pro display has rounded corners that follow a beautiful curved design, and these corners are within a standard rectangle. When measured as a standard rectangular shape, the screen is 6.06 inches diagonally (actual viewable area is less).

Armenia, Australia, Austria, Azerbaijan, Bahrain, Belarus, Belgium, Brazil, Bulgaria, Canada, China mainland,17 Colombia, Costa Rica, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Faroe Islands, Finland, France, Georgia, Germany, Greece, Greenland, Guernsey, Hong Kong, Hungary, Iceland, Ireland, Isle of Man, Israel, Italy, Japan, Jersey, Kazakhstan, Latvia, Liechtenstein, Lithuania, Luxembourg, Macao, Malta, Mexico, Monaco, Montenegro, Netherlands, New Zealand, Norway, Palestine, Poland, Portugal, Qatar, Romania, San Marino, Saudi Arabia, Serbia, Singapore, Slovakia, Slovenia, South Africa, Spain, Sweden, Switzerland, Taiwan, UK, Ukraine, United Arab Emirates, U.S., Vatican City

Available space is less and varies due to many factors. A standard configuration uses approximately 12GB to 17GB of space, including iOS 15 with its latest features and Apple apps that can be deleted. Apple apps that can be deleted use about 4.5GB of space, and you can download them back from the App Store. Storage capacity subject to change based on software version, settings, and iPhone model.

Use of eSIM requires a wireless service plan (which may include restrictions on switching service providers and roaming, even after contract expiration). Not all carriers support eSIM. Use of eSIM in iPhone may be disabled when purchased from some carriers. See your carrier for details. To learn more, visit support.apple.com/en-us/HT212780.

4K resolution refers to a horizontal display resolution of approximately 4,000 pixels.Digital television and digital cinematography commonly use several different 4K resolutions. In television and consumer media, 3840×2160 (4K UHD) is the dominant 4K standard, whereas the movie projection industry uses 4096×2160 (DCI 4K).

The term "4K" is generic and refers to any resolution with a horizontal pixel count of approximately 4,000.: 2 Several different 4K resolutions have been standardized by various organizations.

The terms "4K" and "Ultra HD" are used more widely in marketing than "2160p". While typically referring to motion pictures, some digital camera vendors have used the term "4K photo" for still photographs, making it appear like an especially high resolution even though 3840×2160 pixels equal approximately 8.3 megapixels, which is not considered to be especially high for still photographs.

In 2005, Digital Cinema Initiatives (DCI), a prominent standards organization in the cinema industry, published the Digital Cinema System Specification. This specification establishes standardized 2K and 4K container formats for digital cinema production, with resolutions of 2048 × 1080 and 4096 × 2160 respectively.: §4.3.1 The resolution of the video content inside follows the SMPTE 428-1 standard,: §3.2.1 which establishes the following resolutions for a 4K distribution:: 6

Some articles claim that the terms "2K" and "4K" were coined by DCI and refer exclusively to the 2K and 4K formats defined in the DCI standard.: 2: 109

In 2007, the Society of Motion Picture and Television Engineers published SMPTE ST 2036-1, which defines parameters for two UHDTV systems called UHDTV1 and UHDTV2.

Colorimetry characteristics as defined in the standard, including color primaries, quantization parameters, and the electro-optical transfer function. These are the same characteristics later standardized in ITU-R BT.2020. UHDTV1 systems are permitted to use BT.709 color primaries up to 60Hz.: §6.2

Although the UHDTV standard does not define any official names for the formats it defines, ITU typically uses the terms "4K", "4K UHD", or "4K UHDTV" to refer to the 3840 × 2160 system in public announcements and press releases ("8K" for the 7680 × 4320 system).

The CEA definition does allow manufacturers to use other terms—such as 4K—alongside the Ultra HD logo.: 9 Since the resolution in CEA"s definition is only a minimum requirement, displays with higher resolutions such as 4096 × 2160 or 5120 × 2880 also qualify as "Ultra HD" displays, provided they meet the other requirements.

Some 4K resolutions, like 3840 × 2160, are often casually referred to as 2160p.HDTV and SDTV formats, which refer to a format by the number of pixels/lines along the vertical axis (such as "1080p" for 1920 × 1080 progressive scan, or "480i" for the 480-line interlaced SDTV formats) rather than the horizontal pixel count (≈4000 or "4K" for 3840 × 2160).

The term "2160p" could be applied to any format with a height of 2160 pixels, but it is most commonly used in reference to the 4K UHDTV resolution of 3840 × 2160 due to its association with the well-known 720p and 1080p HDTV formats. Although 3840 × 2160 is both a 4K resolution and a 2160p resolution, these terms cannot always be used interchangeably since not all 4K resolutions are 2160 pixels tall, and not all 2160p resolutions are ≈4000 pixels wide. However, some companies have begun using the term "4K" to describe devices with support for a 2160p resolution, even if it is not close to 4000 pixels wide. For example, many "4K" dash cams only support a resolution of 2880 × 2160 (4∶3);5120 × 2160 (64∶27) TV, but marketed it as a "4K" TV despite its 5K-class resolution.

In 2015, LG Display announced the implementation of a new technology called M+ which is the addition of white subpixel along with the regular RGB dots in their IPS panel technology.

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.

Video sharing website YouTube and the television industry have adopted 3840×2160 as their 4K standard.VOD content to cable and satellite companies in North America.Canadian Radio-Television and Telecommunications Commission to provide educational content.

On March 26, 2013, the Advanced Television Systems Committee announced new proposals of a new standard called ATSC 3.0 which would implement UHD broadcasts at resolutions of up to 3840 × 2160 or 7680 × 4320.Hz, HEVC encoding, wide color gamut, as well as high dynamic range.

In 2014, the Digital Video Broadcasting Project released a new set of standards intended to guide the implementation of high resolution content in broadcast television. Dubbed DVB-UHDTV, it establishes two standards, known as UHD-1 (for 4K content) and UHD-2 (for 8K content). These standards use resolutions of 3840×2160 and 7680×4320 respectively, with framerates of up to 60Hz, color depth up to 10bpc (30bit/px), and HEVC encoding for transmission.

DVB finalized UHD-1 Phase 2 in 2016, with the introduction of service by broadcasters expected in 2017. UHD-1 Phase 2 adds features such as high dynamic range (using HLG and PQ at 10 or 12 bits), wide color gamut (BT. 2020/2100 colorimetry), and high frame rate (up to 120Hz).

In the year 2014, the OnePlus One was released with the option to record DCI 4K (4096 × 2160) at 24 frames per second, as well as LG G3 and Samsung Galaxy Note 4 with optical image stabilization.

In the year 2015, Apple announced the iPhone 6s was released with the 12megapixel camera that has the option to record 4K at 25 or 30 frames per second.

In the years 2017 and 2018, mobile phone chipsets reached sufficient processing power that mobile phone vendors started releasing mobile phones that allow recording 2160p footage at 60 frames per second for a smoother and more realistic appearance.

In 1984, Hitachi released the CMOS graphics processor ARTC HD63484, which was capable of displaying up to 4K resolution when in monochrome mode.bit-mapped desktop publishing market.Dalsa Origin, released in 2003.University of California, San Diego, CALIT2, Keio University, Naval Postgraduate School and others that realizedCineGrid. YouTube began supporting 4K for video uploads in 2010 as a result of leading manufacturers producing 4K cameras.VP9 video compression standard, saying that it was more suitable for 4K than High Efficiency Video Coding (HEVC). Google, which owns YouTube, developed VP9.

In 2014, Netflix began streaming Amazon Studios began shooting their full-length original series and new pilots with 4K resolution in 2014.Amazon Video.

In March 2016 the first players and discs for Ultra HD Blu-ray—a physical optical disc format supporting 4K resolution and high-dynamic-range video (HDR) at 60 frames per second—were released.

On August 2, 2016, Microsoft released the Xbox One S, which supports 4K streaming and has an Ultra HD Blu-ray disc drive, but does not support 4K gaming.PlayStation 4 Pro, which supports 4K streaming and gaming,checkerboard rendering or are upscaled 4K.Xbox One X, which supports of 4K streaming and gaming,

Though experiencing rapid price drops beginning in 2013 for viewing devices, the home cinema digital video projector market saw little expansion, with only a few manufacturers (only Sony as of 2015normal human vision.upscaling or from native 4K sources at a much lower price than native 4K projectors.8K flight simulation for Boeing that met the limits of 20/25 visual acuity.

Pixel shifting, as described here, was pioneered in the consumer space by JVC, and later in the commercial space by Epson. That said, it is not the same thing as "true" 4K. More recently, some DLP projectors claim 4K UHD (which the JVCs and Epsons do not claim).

As noted above, DCI 4K is 4096×2160, while 4K UHD is 3840×2160, producing a slight difference in aspect ratio rather than a significant difference in resolution. Traditional displays, such as LCD or OLED, are 3840 pixels across the screen, with each pixel being 1/3840th of the screen width. They do not overlap—if they did, they would suffer reduced detail. The diameter of each pixel is basically 1/3840th of the screen width or 1/2160th of the screen height - either gives the same size pixel. That 3840×2160 works out to 8.3 megapixels, the official resolution of 4K UHD (and therefore Blu-ray UHD discs).

The 4K UHD standard does not specify how large the pixels are, so a 4K UHD projector (Optoma, BenQ, Dell, et al.) counts because these projectors have a 2718 × 1528 pixel structure. Those projectors process the true 4K of data and project it with overlapping pixels, which is what pixel shifting is. Unfortunately, each of those pixels is far larger: each one has 50% more area than true 4K. Pixel shifting projectors project a pixel, shift it up to the right, by a half diameter, and project it again, with modified data, but that second pixel overlaps the first.

In other words, pixel shifting cannot produce adjacent vertical lines of RGBRGB or other colors where each line is one pixel (1/3840th of the screen) wide. Adjacent red and green pixels would end up looking like yellow, with a fringe on one side of red, on the other of green - except that the next line of pixels overlaps as well, changing the color of that fringe. 4K UHD or 1080p pixel shifting cannot reveal the fine detail of a true 4K projector such as those Sony ships (business, education and home markets). Also, JVC has one true 4K projector priced at $35,000 (as of mid-2017).

So while 4K UHD appears like it has a pixel structures with 1/4 the area of 1080p, that does not happen with pixel shifting. Only a true 4K projector offers that level of resolution. This is why "true" 4K projectors cost so much more than 4K UHD projectors with otherwise similar feature sets. They produce smaller pixels, finer resolution, no compromising of detail or color from overlapping pixels. By comparison, the slight difference in aspect ratio between DCI and 3840 × 2160 pixel displays without overlap is insignificant relative to the amount of detail.

In November 2014, United States satellite provider DirecTV became the first pay TV provider to offer access to 4K content, although limited to selected video-on-demand films.BT Sport launched a 4K feed, with its first broadcast being the 2015 FA Community Shield football match. Two production units were used, producing the traditional broadcast in high-definition, and a separate 4K broadcast. As the network did not want to mix 4K footage with upconverted HD footage, this telecast did not feature traditional studio segments at pre-game or half-time, but those hosted from the stadium by the match commentators using a 4K camera. BT envisioned that if viewers wanted to watch studio analysis, they would switch to the HD broadcast and then back for the game. Footage was compressed using H.264 encoders and transmitted to BT Tower, where it was then transmitted back to BT Sport studios and decompressed for distribution, via 4K-compatible BT TV set-top boxes on an eligible BT Infinity internet plan with at least a 25 Mbit/s connection.

In late 2015 and January 2016, three Canadian television providers – including Quebec-based Vidéotron, Ontario-based Rogers Cable, and Bell Fibe TV, announced that they would begin to offer 4K compatible set-top boxes that can stream 4K content to subscribers over gigabit internet service.Rogers Communications announced that it planned to produce 101 sports telecasts in 4K in 2016 via its Sportsnet division, including all Toronto Blue Jays home games, and "marquee" National Hockey League games beginning in January 2016. Bell Media announced via its TSN division a slate of 4K telecasts to begin on January 20, 2016, including selected Toronto Raptors games and regional NHL games.

On January 14, 2016, in cooperation with BT Sport, Sportsnet broadcast the first ever NBA game produced in 4K – a Toronto Raptors/Orlando Magic game at O2 Arena in London, England. On January 20, also during a Raptors game, TSN presented the first live 4K telecast produced in North America.

Dome Productions, a joint venture of Bell Media and Rogers Media (the respective owners of TSN and Sportsnet), constructed a "side-by-side" 4K mobile production unit shared by Sportsnet and TSN"s first 4K telecasts; it was designed to operate alongside a separate HD truck and utilize cameras capable of output in both formats.2016 Toronto Blue Jays season, Dome constructed "Trillium" – a production truck integrating both 4K and 1080i high-definition units.CTV also broadcast the 2016 Juno Awards in 4K as the first awards show presented in the format.

In February 2016, Univision trialed 4K by producing a closed circuit telecast of a football friendly between the national teams of Mexico and Senegal from Miami in the format. The broadcast was streamed privately to several special viewing locations. Univision aimed to develop a 4K streaming app to publicly televise the final of Copa América Centenario in 4K.DirecTV and CBS Sports announced that they would produce the "Amen Corner" supplemental coverage from the Masters golf tournament in 4K.

After having trialed the technology in limited matches at the 2013 FIFA Confederations Cup,2014 FIFA World Cup (via private tests and public viewings in the host city of Rio de Janeiro),2018 FIFA World Cup was the first FIFA World Cup in which all matches were produced in 4K. Host Broadcasting Services stated that at least 75% of the broadcast cut on each match would come from 4K cameras (covering the majority of main angles), with instant replays and some camera angles being upconverted from 1080p sources. These broadcasts were made available from selected rightsholders, such as the BBC in the United Kingdom, and selected television providers in the United States.

The resolution of 3840 × 2160 is the dominant 4K resolution in the consumer media and display industries. This is the resolution of the UHDTV1 format defined in SMPTE ST 2036–1,Rec. 2020,Ultra HD displays and projectors.3840 × 2160 was also chosen by the DVB project for their 4K broadcasting standard, UHD-1.

This resolution has an aspect ratio of 16∶9, with 8,294,400 total pixels. It is exactly double the horizontal and vertical resolution of 1080p (1920 × 1080) for a total of 4 times as many pixels, and triple the horizontal and vertical resolution of 720p (1280 × 720) for a total of 9 times as many pixels. It is sometimes referred to as "2160p", based on the naming patterns established by the previous 720p and 1080p HDTV standards.

This resolution is used mainly in digital cinema production, and has a total of 8,847,360 pixels with an aspect ratio of 256∶135 (≈19∶10). It was standardized as the resolution of the 4K container format defined by Digital Cinema Initiatives in the Digital Cinema System specification, and is the native resolution of all DCI-compliant 4K digital projectors and monitors.SMPTE 428-1:: §3.2.1 : p. 6

4096×2560 (1.60∶1 or 16∶10); this resolution was used in the Canon DP-V3010, a 30-inch (76 cm) 4K reference monitor designed for reviewing cinema footage in post-production, released in 2013.

4096×2304 (1.77∶1 or 16∶9); this resolution was used in the 21.5-inch (55 cm) LG UltraFine 22MD4KA 4K monitor, jointly announced by LG and Apple in 2016Retina iMac computer.

3840×2400 (1.60∶1 or 16∶10); this resolution was used in the 22.2-inch (56 cm) IBM T220 and T221 monitors, released in 2001 and 2002 respectively. This resolution is also referred to as "WQUXGA", and is four times the resolution of WUXGA (1920×1200).

3840×1600 (2.40∶1 or 12∶5); a number of computer monitors with this resolution have been produced, the first being the 37.5-inch (95 cm) LG 38UC99-W released in 2016. This resolution is equivalent to WQXGA (2560×1600) extended in width by 50%, or 3840×2160 reduced in height by ≈26%.

3840×1080 (3.55∶1 or 32∶9); this resolution was first used in the Samsung C49HG70, a 49-inch (120 cm) curved gaming monitor released in 2017. This resolution is equivalent to dual 1080p displays (1920×1080) side-by-side, but with no border interrupting the image. It is also exactly one half of a 4K UHD (3840×2160) display. Samsung refers to this resolution as "DFHD" (Dual Full HD).

The main advantage of recording video at the 4K standard is that fine spatial detail is resolved well.megapixel still photographs, while only 2.1 megapixels at 1080p and 0.9 megapixels at 720p. If the final video quality is reduced to 2K from a 4K recording, more detail is apparent than would have been achieved from a native 2K recording.contrast is then possible with output to DVD and Blu-ray.Super 35 film format to offset any resolution loss that may occur during video processing.

Goulekas, Karen (2001). Morgan Kaufmann. p. 587. ISBN 9780080520711. 4K resolution: A general term referring to any digital image containing an X resolution of approximately 4096 pixels.

"OV 2036-0:2015: Ultra High Definition Television — Overview for the SMPTE ST 2036 Document Suite". Society of Motion Picture and Television Engineers (SMPTE). March 27, 2015. doi:10.5594/SMPTE.OV2036-0.2015. Cite journal requires |journal= (help)

Nick Pino, Jon Porter (March 8, 2018). "4K and Ultra HD: Everything you need to know about the hot new resolution". Tech Radar. Archived from the original on August 19, 2018. Retrieved September 1, 2018.

"STERIO 4K 2880x2160/P24 Dash Cam". Amazon.com. Archived from the original on September 1, 2018. Super HD 4K 2880x2160P Resolution and 170 Degree A+ Ultra Wide Angle---Record every detail with the latest technique of car video shooting.

"AUKEY 4K Dash Cam". Amazon.com. Archived from the original on September 1, 2018. Retrieved September 1, 2018. An advanced image sensor and super-wide field of view capture everything in ultra-sharp 4K(2880 x 2160 @24fps) video with HDR.

"105" CLASS 105S9 CURVED 4K UHD SMART TV". samsung.com. Archived from the original on 2017-09-09. Retrieved 2018-09-01. Type: Curved 4K UHD TV; Resolution: 5120 x 2160

Wheatley, Mike (July 30, 2014). "Samsung & LG Begin Sales of 105" 21:9 4K, Nay, 5K TV". HDTVtest. Archived from the original on 2017-09-09. Retrieved September 1, 2018.

"Leading Television Industry Players Line Up To Support "4K Ultra HD"" (Press release). Consumer Electronics Association. 11 November 2014. Archived from the original on 23 September 2015. Retrieved 18 December 2014.

Rivington, James (July 7, 2014). "4K TV channels on the way as DVB-UHDTV standard is approved". TechRadar. Future Publishing Limited. Retrieved April 29, 2018.

"Phasing in Ultra High Definition" (PDF). www.dvb.org. DVB Project Office. February 2017. Archived from the original (PDF) on December 22, 2018. Retrieved April 29, 2018.

Jukic, Stephanie. "4K & Ultra HD Resolution". 4K.com. Archived from the original on 30 July 2019. Retrieved 26 November 2014. YouTube has had a 4K channel running since as early as 2010 and other developments are definitely on the horizon, especially in countries or regions with excellent internet connectivity that goes above the normal speeds available to most people.

Sarukkai, Ramesh (2010-07-09). "What"s bigger than 1080p? 4K video comes to YouTube". Archived from the original on 16 July 2011. Retrieved 2011-08-20.

Ohannessian, Kevin. "Where Can You Get 4K Video?". Toms"s Guide. Purch, Inc. Retrieved 26 November 2014. YouTube and Vimeo already stream 4K content. Most of the videos are of the nature/documentary variety, with some tech media coverage thrown in the mix. However, Google recently announced plans to make a much larger selection of 4K video available on YouTube, using its new compression technology, called VP9. If your computer has a powerful graphics card that supports 4K and HDMI version 1.4 or higher, you can connect your computer to a 4K television via an HDMI cable. You will likely need high bandwidth to stream the video without any issues, though neither YouTube nor Vimeo has specified the minimum data speed needed for 4K streaming. Asus, Dell, Sharp, and others make 4K computer monitors.

Frost, Jacqueline B (2009). Cinematography for Directors: A Guide for Creative Collaboration. Michael Wiese Productions. p. 199. ISBN 978-1-61593019-7. Retrieved 21 January 2014.

Truong, Alice (August 6, 2013). "4K is already playing at a theater near you, but you probably didn"t even notice". Digital Trends. Designtechnica. Retrieved 24 May 2014.

Thacker, Jim (September 17, 2017). "HP announces new 37.5-inch curved Z38c display". CG Channel. Archived from the original on January 12, 2018. Retrieved April 29, 2018.

Why do monitors and TVs get image burn? Why can"t manufacturers prevent LCDs and plasma screens from a burnt image imprint? Moreover, what can you do to fix an image burn?

LCD and LED do not work in the same way as CRTs, either. LCD and LED screens use backlit liquid crystals to display colors. Although manufacturers market screens using LED and LCD, an LED screen is still a type of LCD. The white backlight filters through the liquid crystals, which extract particular colors per pixel.

LCD and LED displays don"t suffer from the same type of image burn as CRTs and plasma screens. They"re not completely clear, though. LCD and LED screens suffer from image persistence. Read on to find out more about image persistence.

Before you can fix screen burn-in, take a second to understand why these images burn in the first place. LCDs and LEDs don"t suffer from burn-in as seriously as plasma screens. But static images can leave an imprint on both display types if left alone for too long. So, why does image burn happen?

LCD and LED screens can also experience image burn, though the image burn process can take longer to develop into a permanent issue. In addition, LCD and LED screens suffer from another issue, known as image retention (also known as image persistence or an LCD shadow).

Image retention is a temporary issue that you are more likely to notice before it becomes a permanent issue. However, proper image burn can still affect LCD, LED, and OLED screens.

Image burn-in fixes exist for LCD and plasma screens. How effective an image burn-in fix is depends on the screen damage. Depending on the length and severity of the image burn, some displays may have permanent damage.

The best fix for screen burn is to prevent it in the first place. Okay, that isn"t super useful if your screen is already experiencing image burn. However, you should always try not to leave your screen on a still image for too long. The time it takes for an image to burn-in varies from screen to screen, between manufacturers, sizes, and panel type.

If your plasma or LCD screen already has image burn-in, you can try turning on white static for 12 to 24 hours. The constant moving of white-and-black across your screen in random patterns can help remove the ghost image from your screen.

Pixel-shift constantly slightly adjusts the image on your screen, which varies the pixel usage to counteract image burn. You might have to enable a pixel or screen shift option in your screen settings. Pixel-shift is a handy feature for LED and OLED screens that cannot recover from image burn and should help counteract an LCD shadow.

While the Deluxe version uses advanced algorithms to repair burned screens and prolong plasma and LCD longevity, the official site is no longer up and running, and there is no way to download the full version officially.

Dell’s UltraSharp U2720Q was our main pick in an older version of this guide; compared with the S2722QC, it has a higher, 90 W USB-C charging rate and a slimmer border around the screen. If you can find it for around the same price as the S2722QC, it’s still worth considering. But as of this writing, it’s either out of stock or considerably more expensive than the S2722QC, and it’s just not worth paying extra for.

The biggest failing of the ViewSonic VG2756-4K is its mediocre 949:1 contrast ratio, which is okay in a budget monitor but harder to swallow in a model that usually costs around $500. Its performance in our color-accuracy tests was also mediocre. It has many of the other features we look for in a good 4K monitor, including a USB-C port, a USB hub (along with an Ethernet port), a flexible stand, and a three-year warranty. But its image quality is a step down from that of the Dell S2722QC and the HP Z27k G3.

Lenovo’s ThinkVision P27u-10 was our runner-up pick in an older version of this guide. It’s similar to the Dell S2722QC and the HP Z27k G3 overall, both in design and in the number and types of ports it has (though its USB-C port provides only 45 W of power, rather than the 65 W of the Dell monitor or the 100 W of the HP monitor). When we tested it in 2019, we found its colors to be fairly accurate but its contrast to be mediocre, and we also observed minor image-retention issues. In addition, its stand doesn’t swivel.

The LG 27BK67U-B and the LG 27BL55U-B are 4K monitors with good color that cost less than $400; the 67U-B has a USB hub and USB-C, whereas the 55U-B omits those features and generally costs less. But in our tests both monitors suffered from image retention, leaving behind noticeable afterimages that other budget monitors we tested didn’t have.

We dismissed the ViewSonic VP2768-4K and the BenQ PD2700U for their lack of USB-C connectivity, which is a must-have in $400-and-up monitors these days.

We dismissed the NEC EA271U-BK in 2019. It has handy features like picture-in-picture and picture-by-picture, and its stand and port layout are fine. But it generally costs more than our other 27-inch picks, so we didn’t test it in later rounds.

We also didn’t test the 27-inch LG UltraFine 5K Display, an even-higher-resolution screen for Macs with Thunderbolt 3. It’s very expensive, and getting it to work with Windows is either complicated or impossible depending on the PC you’re using.

The Acer B326HK and the BenQ PD3200U are sometimes cheaper than the 32-inch monitors we considered, but when we tested them in 2017 and 2019, respectively, we were disappointed by their mediocre contrast and color accuracy. They’re also missing newer features that we consider essential in a high-end monitor, such as a USB-C port.

We dismissed some 32-inch monitors without testing them because they were missing one or more of the features we were looking for. The ViewSonic ColorPro VP3268-4K lacked a USB-C port and didn’t cost much less than monitors that had one, and the BenQ EW3280U omitted a USB hub and had a limited stand that tilted the monitor up and down only.

Most companies have stopped making new 24-inch 4K monitors, but we did test the LG 24UD58-B against the Dell P2415Q in 2019. The LG’s screen was less accurate than the Dell’s by a wide margin. This model also had fewer ports (two HDMI ports and one DisplayPort connection), and its stand tilted the monitor up and down only.

We didn’t test the 24-inch LG UltraFine 4K Display, which Apple recommends for Macs that use Thunderbolt 3 ports. It also costs more than our other picks.