wvga 852 x 480 lcd displays manufacturer

We have recently examined television display technologies old and new; now we"ll look at the spatial resolution capabilities of the display technologies that are commonly used in television and video today.

Although static spatial resolution receives most of the attention in advertising and marketing, dynamic spatial resolution can be affected by the type of display technology used. For example, an inherent characteristic of liquid crystal devices is slow response time, which can manifest itself as "lag," or the smearing of moving images, while color wheels or other strobing techniques can cause edge contouring and other disturbing artifacts.

It must quickly be pointed out that these shortcomings have been overcome to a significant degree in high-quality contemporary displays. Resolution, in the context we will use it, is the ability to render distinguishable the individual parts of an image.

Cathode ray tubes are completely analog devices, and unlike other display technologies we have discussed, they do not have discretely ad-dressed pixels that de-fine a native resolution. A color CRT has a matrix of red, green and blue phosphor dots, while a monochrome CRT has a continuous coating of a single [nom-inally] white phosphor over the entire screen. The resolution capability of a given color CRT depends on a number of factors-some of the important ones being the dot pitch (the distance between dot centers, which effectively defines the size of the dots themselves), how tightly the electron beam is focused and the electron beam"s scanning speed. A phosphor dot is not a discrete pixel; the sweeping electron beam does not uniquely turn each individual dot on and off, as is the case with discrete pixel types of displays. Rather, as the beam scans across the face of the tube, the areas of phosphor that the beam strikes fluoresce with an intensity proportional to the beam"s instantaneous amplitude. The size of the phosphor area illuminated by the beam depends on the focus of the electron beam and the distance between adjacent dots of the same color. If the electron beam is sufficiently well-focused, the tube will be able to resolve an area smaller than a single dot: We may think of a dot as a tiny area of continuous phosphor. If the electron beam"s focus is sufficiently diffuse, on the other hand, it may simultaneously illuminate more than a single dot. The dot pitch plays a significant role in determining a color CRT"s resolution capability, because it determines the distance between adjacent dots of the same color. If we consider just red dots, for example, one red dot is not directly adjacent to another red dot. There are, rather, green and blue dots that are to some degree positioned between the two red dots. The result is a gap between adjacent red dots, and the size of this gap influences the attainable resolution. The farther apart the red dots, for example, the less red resolution the screen is capable of displaying, and likewise for the green and blue dots. The smallest dot pitch found in a typical top-quality monitor tube is about 0.22 mm, or about 4.45 dots per millimeter, which is about 115 dots per inch. Such a display with a width of 36 inches has about 4,156 dots in a horizontal line. It is safe to say that it is possible for a CRT monitor to display the resolution of HDTV, either 1280 x 720 or 1980 x 1020, if the proper conditions of dot pitch, electron beam focus and scanning speed are met. It must also be pointed out that many CRTs, sometimes even those found in nominally HDTV displays, are not capable of displaying a resolution of 1920 x 1080.

The other display technologies previously discussed are more straightforward in their resolution characteristics, because they all employ discrete, individually addressed pixels. This imparts to such a display a native resolution, specified by the number of pixels it contains. Unlike CRTs, which are, within limits, flexible in their resolution capabilities, when you want to display a resolution other than the native pixel resolution on a display containing discrete pixels, the image must be re-scaled.

Most commercial liquid crystal display (LCD) HDTV panels have resolutions of 1280 x 720 or 1366 x 768, and there is at least one 54-inch flat panel LCD on the market that claims a native resolution of 1920 x 1080. Although they are not used for television, there are some monochrome LCD monitors available, developed for medical imaging, that have resolutions of 2560 x 2048 (QXSGA), which is slightly more than 5 megapixels.

Many available 42-inch plasma display panels (PDPs) have resolutions of 852 x 480, which puts them in the 480p resolution category, but there is a 54-inch PDP available that claims a resolution of 1024 x 1024 (vertical resolution would really be less than 1024, as either a 16:9 or a 4:3 image, if scaled to fill the screen horizontally, would not fill the screen vertically. 1024 x 1024 would be a 1:1 aspect ratio), and a 70-inch PDP that claims 1920 x 1080. Plasma displays, like LCD displays, become increasingly costly to manufacture as their pixel count increases, because the increasing pixel count and correspondingly decreasing pixel size significantly increases the complexity of the manufacturing process.

CRT projectors are subject to the conditions and caveats enumerated above for direct-view CRTs, with the recognition that the tubes used for projection are smaller than those used for direct view. Projector CRTs have round imaging screens, and are monochrome tubes with a continuous phosphor coating across the screen, not phosphor dots separated by a shadow mask. CRT projectors have resolutions up to 1920 x 1080, but it should be noted that they are scanned at 1080i.

LCD projectors use liquid crystal microdisplays as their image generators, and, as is the case with all LCD displays, are progressively scanned. Most rear projection LCD sets have resolutions of 1280 x 720, although there is one model available at 1920 x 1080. Most current front projection sets are also microdisplay-based; they range in resolution from 858 x 480 to 1920 x 1080. The DLP projectors currently used for Digital Cinema projection in movie theaters, have resolutions of 1280 x 1020, although consumer Digital Micro Device (DMD) projectors with 1920 x 1080 resolution capability are reported to now exist.

This is an overview of the resolution capabilities of the various display technologies commonly used for SDTV and HDTV display today. Many readers are aware that display resolution is not the only factor, and maybe not even the primary factor, in determining picture quality. It has been observed in tests that even discriminating viewers preferred pictures with higher contrast ratios over the same pictures displayed at higher resolutions but lower contrast ratios. Having said that, the resolution capabilities of television and video displays are increasing constantly. Soon the argument that "you can"t display HDTV it in its full resolution, anyway," will be a thing of the past.

The resolutions you see—360p, 480p, 720p, or 1080p—represent the number of horizontal lines a video has from top to bottom. So, a 480p video is made up of 480 lines stacked one on top of another, with each line being 852 pixels wide. In other words, a 480p video has a resolution of 852×480 pixels.

For comparison, a 720p HD video has 720 lines that are each 1,280 pixels wide, meaning that it is more than twice as sharp as a the same video at 480p and can be viewed on a much larger screen.

DVDs clock in at 480p, so if you’re looking to burn a DVD, this resolution will give your disc the highest quality allowed by any DVD burner or disc. A 480p video will also play well on most laptop and desktop monitors, and smaller TVs.

True high-definition starts at 720p, and this is the image resolution at which many HD television channels broadcast. An HD 720p Animoto video is crisp, sharp, and looks great on most displays.

Once your video is the resolution you want, you can export it to YouTube, Facebook, Twitter, and more. You can also embed or share Animoto video links at up to 720p or download your video as an mp4 at up to 1080p.

Pixel, also called Picture Element, A pixel is the smallest unit of a digital image or graphic that can be displayed and represented on a digital display device. A pixel is the basic logical unit in digital graphics. Pixels are combined to form a complete image, video, text, or any visible thing on a computer display

LCD display doesn’t operate the same way as CRT displays , which fires electrons at a glass screen, a LCD display has individual pixels arranged in a rectangular grid. Each pixel has RGB(Red, Green, Blue) sub-pixel that can be turned on or off. When all of a pixel’s sub-pixels are turned off, it appears black. When all the sub-pixels are turned on 100%, it appears white. By adjusting the individual levels of red, green, and blue light, millions of color combinations are possible

The pixels of the LCD screen were made by circuitry and electrodes of the backplane. Each sub-pixel contains a TFT (Thin Film Transistor) element.  These structures are formed by depositing various materials (metals and silicon) on to the glass substrate that will become one part of the complete display “stack,” and then making them through photolithography. For more information about TFT LCDs, please refer to “

The etched pixels by photolith process are the Native Resolution. Actually, all the flat panel displays, LCD, OLED, Plasma etc.) have native resolution which are different from CRT monitors

HD TV has 1280×720 = 921,600 pixels; Full HD has 1920x 1080=2,073,600 pixels; 8K TV has 7,680×4,320=33,177,600 pixels. he “K” in 8K stands for Kilo (1000), meaning a TV that has achieved a horizonal resolution of about 8,000 pixels.

Although we can define a LCD display with resolution, a Full HD resolution on screen size of a 15” monitor or a 27” monitor will show different. The screen “fineness” is very important for some application, like medical, or even our cell phone. If the display “fineness” is not enough, the display will look “pixelized” which is unable to show details.

A lot of times, we heard about what is the DPI of your monitor, actually it is not a exact correct saying. Please find the definition of DPI and PPI as below.

PPI stands for number of pixels per inch. It is kind of pixel density. PPI describes the resolution of a digital image, not a print. PPI is used to resize images in preparation for printing

But you see other lower resolution available, that is because video cards are doing the trick. A video card can display a lower LCD screen resolution than the LCD’s built-in native resolution. The video cards can combine the pixels and turn a higher resolution into lower resolution, or just use part of the full screen. But video cards can’t do the magic to exceed the native resolution.

Abbreviation: QVGA, VGA, HD, FHD, 1080p, 1440p, 4K etc. It is very straight forward for different applications. For TV buyers, they can simply focus on 4K, 8K etc; for industrial engineers, they most likely focus on VGA, HD, WVGA etc.

improved video signal quality comparable to that of a home theater system, delivering crystal sharp images on a 75” virtual widescreen display, as seen from 10 ft. (~3m). Its HDMI technology enables a plug ‘n play connection to the broadest range of audio/video, multimedia, mobile and computer devices. This single video eyewear model connects to virtually any device providing a HDMI compliant port. Mobile phones, tablets, Blu-ray players, personal computers and more connect directly with a single cable.Some devices, including Android mobiles, may require an optional adapter.For those looking for something beyond simply watching video, the Wrap 1200DX also provides today’s hottest VR gaming experience. It plugs into the HDMI port on console or set-top video gaming systems to provide a personal big-screen experience in 2D or 3D with supported games. Clip on an optionalWrap Lightshieldfor a truly immersive experience. If your gaming on a Windows PC, plug in an optionalWrap Trackerto add head tracking capabilities to supporting games and simulations for see-where-you-look reality for the most complete and awesome VR gaming experience available.

HDMI (High-Definition Multimedia Interface) is an audio/video interface for transferring audio and video data between HDMI-compliant devices, such as the Wrap 1200DX video eyewear.

Designed to take optimum advantage of the HDMI technology, the Wrap 1200DX eyewear displays 2D video as well as the various 3D video formats required for HDMI certification. When the eyewear is connected to an HDMI-compliant source device, its video settings will automatically configure to the correct 3D video format. When the eyewear is used with other devices an OSD (On-Screen Display) enables the manual configuration of display settings, including the selection of side-by-side, over-under, and frame packed 3D video formats.

Prior to the Wrap 1200DX, different eyewear models were required to connect to different devices with different video interfaces. The High-Definition Multimedia Interface port on the Wrap 1200DX changes all that, enabling plug ‘n play connection to all devices equipped with an HDMI port as well as most other devices augmented with an HDMI compatible adapter.

Most devices, including those not equipped with an HDMI port, can be easily enabled to work with the Wrap 1200DX through the addition of an optional HDMI adapter. Some devices, such as certain Android devices, may require an MHL adapter used by some mobile phones. Check with the audio/video device manufacturer on the type of adapter required for connection to an HDMI display system.

The Wrap 1200DX provides crystal clear audio and video. A pair of hi-fidelity stereo earphones reduce external noise while providing high-quality audio. The earphones are removable, allowing you to use an alternate speaker system if so desired. The high-resolution twin LCD displays provide a stunning home theater experience similar to viewing a 75” virtual widescreen display from a distance of 10 ft. (~3m).

Easily expand your Wrap 1200DX to include full virtual reality capabilities for playing VR games and running simulators on a Windows based personal computer. You can purchase aWrap 1200DX-VR, that includes a VR upgrade Kit or you can purchase theVR Upgrade Kitseparately.

This article provides some information on the terminology used with displays on cell phones, tablets, computers, televisions and other electronic devices. Displays come in various physical sizes and resolutions. In the marketing material for a device the physical size is normally expressed as a figure in inches. This figure is the diagonal (corner to corner) measurement of the screen.

For example the Apple iPhone 6 screen size is given as 4.7 inches. To find the physical width and height of a screen the manufacturers detailed specifications need to be examined, or use a ruler on the device itself. The screen resolution is the number of pixels (the dots used to form the image being displayed) that make up the screen in its width (or x axis) and height (or y axis) dimensions. A screen that has a resolution of 480×320 is 480 pixels wide by 320 pixels high. (See How Computer Screens and Printers Show Images to learn more about pixels.)

There are many types of display in the multitude of electronics devices around. The different resolutions have been given acronyms over the years that started when IBM invented the Video Graphics Array (VGA) computer display hardware in 1987 (see the footnote for what was used prior to VGA). The VGA display had a resolution of 640×480 and this format became very popular and widely known by the letters VGA. Technology never stands still and resolutions higher than VGA soon arrived. A consortium of companies set up the Video Electronics Standards Association (VESA) to promote common video technology specifications at higher resolutions than VGA, but with backwards compatibility, a Super VGA. This term was abbreviated to SVGA and defined a resolution of 800×600. Successive hardware releases by manufacturers continued to increase the resolution of displays and with new hardware came new acronyms. IBM had its Extended Graphics Array, XGA, which supported 1024×768. VESA released a standard at the same resolution called Extended Video Graphics Array, EVGA. While both XGA and EVGA supported 1024×768 the letters, like VGA, covered not only the resolution but also the hardware. However, the acronyms became associated with the resolutions. The hardware that those letters referred to has long gone but the resolutions remain.

The rise of widescreen displays added a W to the acronyms. These wide screen versions of VGA, SVGA and XGA usually had the same height but were 25% to 34% wider (different manufacturers produced differing number of pixels in the x-axis as well as some variation in the y-axis):

Some manufactures have produced wide versions of wide screens! These are dubbed Ultra, hence a Ultra Wide Video Graphics Array, UWVGA at 1024×480, probably better than calling it a short XGA.

International agreements on High Definition, HD, television defined a resolution of 1280×720, commonly referred to as 720p. The first HD televisions usually used WXGA displays since the resolutions were similar. With the advent of Full High Definition, FHD, or 1080i/1080p, screens with resolutions of 1920×1080 appeared.

Advances in technology have not only seen computer screens and televisions get bigger and support high resolutions, it has also seen mobile devices get better screens. Games consoles and cell phones have also been given bigger screens with more pixels. Unlike televisions and computers phone screens are commonly held in portrait mode. Thus when referring to the screen resolution the x-axis will be smaller than the y-axis. The first Apple iPhone had a resolution of 320×480. The x-axis being half that of a VGA display with half the number of pixels, hence this resolution being referred to as HVGA (Half Video Graphics Array), not to be confused with the H in HD. Similarly a device that is QVGA (Quarter Video Graphics Array) has one quarter the number pixels of a VGA display. The Galaxy Pro has a QVGA display with a 320×240 landscape screen.

Just like the televisions and computer screens that ended up in wide formats the same applies to mobile devices. Wide Quarter Video Graphics, WQVGA , is 25% bigger than QVGA at 400×240, though variations may occur (e.g. 384 or 428 on the x-axis).

The lists use some familiar names for the screen resolutions, such as HVGA or WSVGA. What about the less familiar names? Because of the wide variety of Android devices available the widescreen options can show a number with the name, such as WVGA854 or WXGA720. This number is a hint as to the actual screen resolution of the skin to be used for the AVD. A WVGA screen would be expected to have a 800×480 resolution, calling it WVGA854 means it is a 854×480 size display, likewise for other names with numbers. The names correspond to displays that are, or used to be, commonly available devices. (There are a couple of naming inconsistencies.)

Side note: Early versions of the Android SDK supported non-rotating skins, QVGA-P at 240x320, QVGA-L at 320x240, HVGA-P at 320x480 and HVGA-L at 480x320. These were removed in 2009 because QVGA and HVGA skins began supporting rotation. The non-rotating screen names only appear in the AVD Manager if API Level 3 or earlier as a target is selected (and the relevant obsolete SDK is installed).

The displays on mobile devices have seen increases in resolution for the same size screen. When Apple brought out the iPhone 4 the screen size remained the same as the previous model at 3.5 inchs, but the resolution changed from 320×480 to 640×960, twice the resolution in the x and y dimensions resulting in four times the number of pixels in the same space. This was called the Retina display and provided for much sharper and clearer images and text. This resolution is twice that of a VGA screen and is dubbed DVGA, D for double. New devices follow this trend of packing more pixels onto the display. The iPad 3 has more pixels than a FHD television with a Quad Extended Graphics Array, QXGA, display at 2048×1536. (Acronyms can be confusing, Q on QXGA refers to Quad as opposed to Quarter when on QVGA!) Even low cost Android tables often support FHD displays.

There are devices that use displays designated qHD, meaning a quarter of FHD at 960×540, or nHD for a ninth of FHD at 640×360 pixels. These displays allow for scaling of FHD media without cropping. (More acronym confusion with lowercase letters for quarter and ninth!)

Displays keep packing in the pixels. Even the smartphones are getting denser and denser displays, beyond FHD. The Samsung Galaxy S7 has a 1440x2560 resolution, or Wide Quad HD, WQHD. For televisions the Ultra High Definition (UHD) screens, a.k.a 4K screens, have a resolution of 3840x2160, four times as many pixels as FHD. Great for large screen TVs, but 4K screens are seen on laptops! Even bigger are 8K screens at 7680x4320! Manufacturers keep pushing the limits of resolutions, even though humans are unlikely to notice any differences beyond FHD.

Most of us don"t think much about the images we look at on a TV, flat-panel display, or on a laptop or desktop computer screen; that is, we don"t think about what comprises the image—because our eyes and brain merge all the elements of color, brightness and contrast into a “picture” we immediately see. The process is similar, but not exactly analogous, to what happens when we watch a movie. We don"t sit there and dissect the 24 still pictures presented sequentially every second (in the case of a TV program, 30 frames per second). Our visual system and brain merge the rapidly moving images into motion, and if the TV show or movie is any good, we"re happy.

But if you move up really close to an electronic image display and use a magnifying glass, you can see the tiny individual squares of red, green, and blue “pixels”(short for “picture elements” in modern video-speak) that comprise the image. The pixels are actually square or rectangular in new technologies like LCD (liquid-crystal display), plasma panels, and in DLP (digital light processing) or LCD front and rear projection sets. And the smaller the pixels, and the more of them there are distributed vertically and horizontally across the face of the screen, the greater the “resolution” or detail we will see in the image. (On the old but familiar CRT picture tube TV, the picture elements are groups of round red, green and blue phosphor dots that glow when the electron beam in the tube strikes them.)

LCD, plasma, and DLP devices are all called “fixed-pixel” displays because the panel has a predefined and fixed number of pixels in its display format. Knowing the number of pixels in each direction (horizontally and vertically) will tell you how sharp an image it will produce, as well as whether it will display a true High Definition TV image or only Standard Definition, both of which are part of the new digital TV standard. The pixel count will also affect the cost. Lower resolution costs less; higher resolution costs more, sometimes a lot more. And don"t make the mistake of thinking that just because a TV is labeled “digital” means that it is capable of producing a high-definition picture. Within the new digital TV set of standards, there are three levels of resolution permitted: Standard (SDTV), Enhanced (EDTV), and High Definition (HDTV).

If you are considering purchasing a larger screen and/or a High Definition TV (HDTV), there is a phrase describing potential image clarity that you must understand. That term is “native resolution,” and it refers to the maximum degree of clarity that one of the new digital TV formats is capable of displaying. Native resolution of a fixed-pixel display is defined as the total number of horizontal pixels across each scanning line by the total count of vertical lines stacked top to bottom. For example, a Standard Definition fixed-pixel display would have 704 pixels across each of 480 scanning lines (704 x 480) and that would represent a squarish 4:3 aspect ratio screen shape, the image shape in which virtually all TV programs were photographed until the advent of HDTV, which, as part of the HDTV standard, requires a “widescreen” aspect ratio of 16:9, similar to that of most commercial movies.

As our TV system gradually converts from analog TV transmission and display to an all-digital system, a process that will continue until 2006, Digital TV allows for three standards of “definition” or clarity, two of which encompass High Definition TV. Standard Definition, as explained above, is equivalent to 480 interlaced horizontal lines (480i) stacked from the top to the bottom of the screen. The “interlaced” lines mean that the image (a frame) is made up or alternating fields of 240 lines that are scanned across the screen every 1/60 th of a second. As the fields combine or “interlace” on the screen, a full frame of TV in Standard Definition is presented.

Stored on a DVD is an MPEG digital bit stream representing the video. Older DVD players would output only 480i images from a DVD, because most older analog TV sets would only work with a 480i input. However, even inexpensive new DVD players now have internal circuits that will output the DVD"s video in either 480i or 480 progressively scanned lines, known as “480p.” This is called Enhanced Definition, and gives a smoother more film-like look, with no visible scanning lines.Any fixed-pixel display will display this standard, so when you see a display described as having a native resolution of “800 x 600” pixels, you know that it has enough resolution to extract virtually full clarity from a DVD player that outputs a 480p, progressively scanned image. That resolution is not high enough to display full HDTV, but it"s nearly enough to capture every line of a wide-screen DVD, which calls for 852 x 480 resolution. Put another way, the resolution would measure 852 pixels across each of 480 horizontal lines scanned sequentially from top to bottom.Typically this is the resolution of the least expensive plasma and LCD thin-panel displays, as well as inexpensive DLP projectors that use the 800 x 600 DLP chips.

In practice, most of these displays will look quite detailed with DVD playback and even HDTV signals that are “scaled” or down-converted to fit the display"s 852 x 480 native resolution. However, such a display or projector will not let you view true High Definition signals in their original resolution.

To take full advantage of HDTV"s ability to render spectacular clarity and detail, you must find an LCD, plasma, or DLP device that has a native resolution of either 1,280 x 720 pixels (720 lines progressively scanned with a widescreen 16:9 aspect ratio) or “1080i” (1920 x 1080), which represents a 16:9 widescreen image with 1920 pixels across each of 1080 interlaced scan lines. These are the only two High Definition formats defined by the HDTV standard. All network broadcasters use one or the other for their HD programs. For instance, ABC and Fox broadcast in 720p, while CBS, NBC, and PBS use 1080i. Likewise, cable and satellite networks will use one or the other: HBO, HDNet, DiscoveryHD, and Showtime use 1080i, whereas ESPN uses 720p. Broadcasters choose one or the other for different reasons. Progressive scanning (720p) produces a smoother, more film-like look, but a 1080i image actually contains greater detail. Though it has fewer lines, the native progressive scan format (720p) eliminates motion artifacts that originate in interlacing. For subject matter that contains a lot of rapid motion--Monday Night Football, basketball or hockey games, for example--720p will produce a clearer, more stable picture than 1080i. Alternatively, for subject matter that has very little motion, 1080i is capable of rendering more picture detail. And because 720p has the highest data bandwidth and horizontal scan rate, it usually means that 720p programming is converted or “scaled” to 1080i for transmission (it occupies less digital “space” than 720p).

When you choose an HD display, it must be able to receive and display both of these formats, either natively or by converting (scaling) the incoming HD signal to the display"s native resolution. For example, a 1280 x 720 fixed-pixel LCD or plasma panel or DLP projector will have an internal scaler that will convert every incoming video signal so that it “fits” its 1280 x 720 native resolution. How well the internal scaler or converter does this may vary from one brand of set to another. And many outboard HDTV digital cable boxes and satellite tuners can be set to output their signals to exactly match your HD display"s native resolution. Sometimes your HD set"s internal scaler may do a better job than the outboard cable box or receiver at converting, say, 1080i to 720p, or 480i to 720p. In other cases, there may be little or no difference. You can find out with a bit of experimentation, but that is a subject for another newsletter. You can get a quick fix on this by viewing a display in a store with a variety of different input signals, including analog cable and regular broadcast TV, as well as DVDs and High-Def signals. Of course, it"s difficult to do that because retailers love to showcase their new sets with HD programming so the image has the greatest impact. But if you ask, most stores will switch to a local cable or broadcast feed that will give you some idea of what you"ll see viewing regular analog TV signals. And be prepared to become an HD snob. Once tasted, HD images are very seductive, and it"s hard to go back to viewing “old” 4:3 non-HD signals. But each year brings more and more HD programming, so your care in understanding and choosing the right fixed-pixel display now will assure you of beautiful HD images in the future as more and more High-Def programming becomes available.