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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 Blog archived. Archived from the original on March 12, Coding Horror. Retrieved 18 September June 9, Retrieved June 10, June 21, July 26, Retrieved July 26, Retrieved June 15, Retrieved 9 October Soneira used the 0. A better number for a typical person is more like 1 arcmin resolution, not 0. The Centre for Vision in the Developing World.
Categories : Apple Inc. Hidden categories: CS1 maint: unfit URL CS1 maint: url-status CS1 maint: multiple names: authors list Articles with short description Short description is different from Wikidata All articles with unsourced statements Articles with unsourced statements from November In these conditions, refuting Apple's marketing claim would be unfair and misleading.
So what about Dr. Raymond Soneira's claim in the Wired article that Apple "Retina Display" is a misleading marketing term? First let's look at Dr. Soneira's argument: he correctly states that the eye has an angular resolution of 50 cpd, which would require a pixel density of ppi at a viewing distance of 1 foot. But what Dr. Then, the question is whether this distinction between the lower and higher limits in normal visual acuity is critical enough to refute Apple's claims for its "Retina Display".
Now, Steve Jobs referred in his keynote to a viewing distance of 10 to 12" when claiming that the limit of the human retina is reached for a ppi display. However I think that this viewing distance is too short from a practical point of view: personally, the most comfortable distance between my eyes and my iPhone 3G is about 18" 45 cm and not 10" or 12", and guess what?
At this comfort distance, the Apple "Retina Display" would provide exactly the higher limit in angular resolution argued by Dr. Soneira 50 cpd! I believe that for most people a reasonable viewing distance when reading a book or using a mobile device is between 10" and 20" see note 2.
That would be my first take-home message in this ongoing controversy. What about the "Retina" term? The maximum visual resolution is known to be limited by the photoreceptor spacing in the retina in particular in its center, the fovea, where the cone photoreceptors are densely packed : cone spacing at the fovea is approximately 28 seconds of arc about 0.
The goal of Retina displays is to make the text and images being displayed extremely crisp, so that pixels are not visible to the naked eye or at viewing distance. Apple's Retina displays are not an absolute standard for display sharpness, but vary depending on the size of the display on the device, and at what distance the user would typically be viewing the screen.
Where on smaller devices with smaller displays users would view the screen at a closer distance to their eyes, the displays have more PPI Pixels Per Inch , while on larger devices with larger displays where the user views the screen further away, the screen uses a lower PPI value. Later device versions have had additional improvements, whether an increase in the screen size the iPhone 12 Pro Max , contrast ratio the When introducing the iPhone 4 , Steve Jobs said the number of pixels needed for a Retina display is about PPI for a device held 10 to 12 inches from the eye.
Any display's viewing quality from phone displays to huge projectors can be described with this size-independent universal parameter. Note that the PPD parameter is not an intrinsic parameter of the display itself, unlike absolute pixel resolution e. It can be calculated by the formula. That aperture, which can be measured by visual field tests , varies widely among different human subjects. In practice, thus far Apple has converted a device's display to Retina by doubling or tripling the number of pixels in each direction, quadrupling the total resolution.
This increase creates a sharper interface at the same physical dimensions. The sole exception to this has been the iPhone 6 Plus, which renders its display at triple the number of pixels in each direction, before down-sampling to a p resolution. The displays are manufactured worldwide by different suppliers. Reviews of Apple devices with Retina displays have generally been positive on technical grounds, with comments describing it as a considerable improvement on earlier screens and praising Apple for driving third-party application support for high-resolution displays more effectively than on Windows.
Reviewing the iPhone 4 in , Joshua Topolsky commented:. Not only are the colors and blacks deep and rich, but you simply cannot see pixels on the screen…webpages that would be line after line of pixelated content when zoomed out on a 3GS are completely readable on the iPhone 4, though the text is beyond microscopic. That much resolution is stunning. It will set a bar for future resolution that every other manufacturer of devices and PCs will have to jump. Writer John Gruber suggested that the arrival of Retina displays on computers would trigger a need to redesign interfaces and designs for the new displays:.
The sort of rich, data-dense information design espoused by Edward Tufte can now not only be made on the computer screen but also enjoyed on one. 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  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. So, if you hold an iPhone at the typical 12 inches from your eyes that works out to pixels per inch. At 8 inches it's ppi.
You have to hold it out 18 inches before it falls to ppi. So the iPhone has significantly lower resolution than the retina. It actually needs a resolution significantly higher than the retina in order to deliver an image that appears perfect to the retina. Level up your earbud game Apple has added premium features previously exclusive to its more luxurious AirPods Pro, such as spatial audio and water resistance.
Stated another way the iPhone display would need to have 1. Okay, got all that? On the other hand, William H. A visual angle of 1 arc minute seen from a distance of 1 foot corresponds to a dot size of about 89 micrometers or a pixel density of Since this display is able to provide a visual input to the retina with a spatial frequency up to 50 cycles per degree when viewed from a distance of inches, it almost matches the retina resolution according to the Nyquist-Shannon sampling theorem.
It's when you get within 3 inches that he says you'll be able to see the pixels. Hokay, well. The one thing they all definitely agree on is that it ultimately comes down to how far you hold the iPhone from your face. The further away, the better it's going to look.