What is retina display on apple ipad

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Regarding font choices, you not only need not choose a font optimized for rendering on screen, but should not. Fonts optimized for screen rendering look cheap on the retina MacBook Pro—sometimes downright cheesy—in the same way they do when printed in a glossy magazine. He says that the physiology of the human retina is such that there must be at least pixels per inch in a pixelated display for the pixels to become imperceptible to the human eye at a distance of 12 inches mm.

The picture will look pixelated. So in my opinion, what Jobs said was fine. Soneira, while technically correct, was being picky. However, near visual acuity is usually poor due to presbyopia [34] in nearly everyone over 40, such that decreasing reading distance can actually reduce perceivable resolution.

This was an isolated case for the platform however, as all other Symbian-based devices had larger displays with lower resolutions. Some older Symbian smartphones, including the Nokia N80 and N90 , featured a 2. The first Android smartphones with the same display - Meizu M9 was launched a few months later in beginning of In October of the same year Galaxy Nexus was announced, which had a display with a better resolution.

Aside from resolution, all generations of iPhone Retina displays receive high ratings for other aspects such as brightness and color accuracy, compared to those of contemporary smartphones, while some Android devices such as the LG G3 have sacrificed screen quality and battery life for high resolution.

Ars Technica suggested the "superfluousness of so many flagship phone features—the move from p to p to p and beyond From Wikipedia, the free encyclopedia. This article is about the HD screens of Apple products. For the heads-up-display technology, see Virtual retinal display.

Brand name for high resolution displays featured in many products from Apple Inc. Part of a Retina display on an iPhone 4. The pixels are not visible at normal viewing distance, creating an impression of sharp print-like text. Part of a non-Retina display on an iPhone 3GS. The pixels are visible at normal viewing distance. June 7, Retrieved June 4, Trademark Applications and Registrations Retrieval. Retrieved June 19, Claims priority filing date with respect to prior application in Jamaica.

Canadian Trade-marks Database. Also cites prior application in Jamaica. Retrieved Archived from the original on Retrieved 28 July Nielsen Norman Group. Daring Fireball. Retrieved June 21, Retrieved 22 March Wired magazine. April 4, Retrieved July 9, March 19, Retrieved March 20, PC World. Retrieved 9 July Ars Technica. The Inquirer. Archived from the original on September 14, Retrieved 30 August The next major advancement in iPad screen technology came in the form of Apple's Liquid Retina display on the first-generation iPad Pro.

Another of Apple's own marketing terms, Liquid Retina for iPads is largely understood to refer to displays which meet the same naked-eye pixel density requirements of the original Retina, but with a higher screen-to-body ratio. For the 9. Liquid Retina technology also allowed Apple to develop its largest iPad model—the first-generation iPad Pro This new Liquid Retina display became the standard for iPad Pro screens, featuring in all subsequent models, as well as making its way over to the 4th-generation iPad Air in Along with Liquid Retina came Apple's True Tone dynamic color adjustment technology, designed to match screen color intensity to surrounding ambient light for more natural colors.

This new screen technology also brought new challenges for accessory makers like Moshi. Smaller bezels around the screen left less real estate on which to adhere screen protectors and covers, while the additional ambient light sensor enabling True Tone technology required precision cut-outs on any screen covering.

The second-generation iPad Pro saw the introduction of Apple ProMotion adaptive refresh rate technology, which dynamically adjusted the refresh rate depending on the type of content being displayed, striking a balance between image quality and battery life. Although the screen itself remained unchanged through the subsequent three generations of the iPad Pro, the removal of the home button from the 3rd generation models further slimmed down the bezels, with an increase in screen-to-body ratio from All subsequent iPad Pro models and the 4th generation iPad Air would follow suit, with the home button only remaining on the iPad and iPad Mini models.

Later models such as the iPad Air 4th generation would incorporate Touch ID into the power button on the side of the device previously located in the home button , which meant that any protective case or cover would need to have a cut-out allowing physical contact with the power button rather than simply being able to cover it with a protective coating. It was not until April that Apple made another significant change to the iPad's display.

At its April Spring Loaded event, new inch and The key benefit of mini LED technology is the ability to dim or brighten very small areas of the screen independently of one another, resulting in darker blacks and brighter colors and therefore better contrast, as well as higher levels of full-screen and peak brightness. At the time of writing, the Apple's continued use of LCD across many generations of the iPad has enabled it to perfect the technology, with each iteration improving on the last.

The recently announced Liquid Retina XDR display represents yet another advance in iPad screen technology, promising further improvements in image quality including better contrast, more vivid colors, and darker blacks. To appreciate how Liquid Retina XDR is able to deliver such improvements in image quality, it's important to understand how LCD screens produce images. In very simple terms, a standard LCD display works by passing a bright white backlight usually LED through a series of polarizers and liquid crystals, which can distort to adjust the amount of light reaching a set of color filters at the front of the display; all of the LED backlight is allowed to pass through to produce a white pixel, and all light is blocked to produce a black pixel.

Previous iPad displays mitigated this issue somewhat by using an array of up to 72 small LEDs, which could be dimmed independently to make certain areas of the screen appear darker, but would still result in some pixels needing to totally block out the backlight in order to appear dark.

This allows for far greater precision when it comes to dimming small groups of pixels, and thus the ability to achieve higher contrast between light and dark areas of the screen. Still confused? We don't blame you. Apple uses a lot of marketing terminology in reference to their iPad displays and associated technologies, which can be overwhelming if you're not a hardcore iPad aficionado.

We've pored over the specs and crunched the numbers to put together this quick 'cheat sheet' summary of the key terms you're likely to come across in the world of iPad screens. Retina - A display with a pixel density such that the naked eye cannot discern individual pixels on an iPad screen from a distance of 15 inches.

Most Retina screens found on iPads have a pixel density of ppi, while the iPad Mini's Retina display is higher at ppi. Other devices like iPhones and MacBooks may have a different pixel density while still being classified as Retina, as their screens are usually closer or further from the user's eyes during normal operation. Liquid Retina - For most iPads, these displays have the same ppi pixel density as a standard Retina display, but usually offer a higher screen-to-body ratio due to smaller bezels around the screen.

All Liquid Retina displays also include True Tone technology. Liquid Retina XDR - The display technology and pixel remains the same as that of the Liquid Retina display, however backlighting is provided by an array of more than 10, mini LEDs to create more dimming zones, giving richer colors and better contrast.

True Tone - Apple's adaptive dimming technology which dynamically adjusts the color intensity and temperature of the display based on surrounding light levels.