Techopedia Terms. Connect with us. Sign up. Term of the Day. Best of Techopedia weekly. News and Special Offers occasional. Retina Display. Techopedia Explains Retina Display. What Does Retina Display Mean? Retina display is a brand marketing term used by Apple to describe the displays in its products, which freature high pixel density and resolution that the company claims makes it impossible for the human eye to distinguish each pixel at a normal viewing distance. This, of course, is very subjective but the technology is designed to smooth out the edges of the pixels to create smooth, high-quality image resolution.
Retina display technology was first released to the public in June as part of the iPhone 4. Techopedia Explains Retina Display Because the term retina display does not apply to a specific technology, Apple has used it for different displays with very different pixel densities. It was first used in the iPhone 4, which has pixels per inch, and then on the iPad 2, which boasts a much lower pixel density of only pixels per inch, making it quite easy for most people to distinguish pixels at normal viewing distance.
The high resolution apple products are known for is made possible a result of a number of factors: There is a higher contrast ratio compared to older models, making the black and white in an image more distinguishable. LED backlights and chemically treated glass screens boost image quality.
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|What is a retina hd display||Edelbrock|
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|What is a retina hd display||Icon sizes. Guide Ranking of the strongest characters of Persona 5 Strikers. Best Hardware Security Keys. Basically, it's a screen where there are so many pixels so closely side by side that you can't see single pixels or jagged lines on the screen, even when looking at it closely. Retina display technology was first released to the public in June as part of the iPhone 4.|
|Bionicle tahu||Report this image Credit: Wikipedia. The effect of a retina display is that everything looks clearer. Karen Australian. The text in particular benefits from retina — it looks smoother, with the curves on the characters looking like curves rather than jagged steps. Since Januaryalmost every Apple product with an integrated display has been rated Retina or better.|
The Canadian application cited a application in Jamaica. The Retina display debuted in with the iPhone 4 and the iPod Touch 4th Generation , where each screen pixel of the iPhone 3GS and iPad was replaced by four smaller pixels, and the user interface scaled up to fill in the extra pixels. Apple calls this mode HiDPI mode. The scale factor is tripled for devices with even higher pixel densities, such as the iPhone 6 Plus and iPhone X.
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, Not just the pixel count, but the distance at which you are looking at the screen matters.
As you get closer to the screen, you start seeing individual pixels. Those are the pixels. It is almost impossible to discern each pixel on a smartphone by looking at the screen at a close distance. Because most of the phones have over PPI density.
Retina display is not just about the crips resolution and PPI density. There was much more behind the display to create those eye-pleasing images. Retina displays were better, in contrast, to balance to manage the blacks and whites. Retina display came with a truetone display technology. Color calibration is a process of adjusting multiple channels of color, hue, and saturation to display an image as close to real life.
Not just viewing distance, but the size of the screen is also a deciding factor in the crispness of the display. What do you think the PPI density of the latest Macbook would be? It is just PPI! Lower than the iPhone 4. Why is that? Since the screen of the laptop is larger than the iPhone, people look at the screen at a larger distance more than inches. At that distance, the human eyes cannot discern between individual pixels, be it pixels per inch or pixels per inch. The same for the iMac.
All these have Retina displays but a very low PPI. This is why I said you can discern the pixels in this article only if you are reading it on a laptop or desktop. What makes the Retina display so good is the pixel density, the color calibration, the brightness, high-quality display panels used, and other hundreds of minute tweaks to make the display worth the name.
Truetone technology also factors in to make the Retina displays so good. Truetone is a technology that adjusts the warmth or coolness of the display according to the environmental light. The warm mode makes the colors shift to red while the cool mode shifts it to blue. There is no fixed resolution of the Retina Display. Different Apple devices have different resolutions. Retina display is not about the resolution. Retina Display is the marketing term for a better display technology launched by Apple.
This display, at the time of launch, had better pixel density. With better pixel density, the image and text quality on the display looked sharp and crisp. These displays can show any content such as 4K or 5K if they have the resolution for it. And no, Retina display is not bad for the eyes, it is just as bad as any other digital screen for the eyes too much exposure can damage the eyes.
When this display was launched first in , it was far more superior to any other display in the market. The superiority came from the excellent pixel-density. But now, other display makers such as Sony and Samsung have come up with displays with ridiculous pixel density screens. But even today, Retina displays are perhaps the best screen displays both on phones iPhones , laptops MacBook , and Macs.
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