Retina display: Difference between revisions
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'''Retina Display''' is a brand name used by [[Apple Inc.|Apple]] for [[liquid crystal displays]] which they claim have a high enough [[pixel density]] that the human eye is unable to notice pixelation at a typical viewing distance. The term is used for several Apple products, including the [[iPhone]], [[iPod Touch]], [[iPad]], and [[MacBook Pro]].<ref>{{cite web |url=http://www.apple.com/iphone/features/retina-display.html |title=Apple - Learn about the Retina Display |accessdate=2010-06-21}}</ref> As the typical viewing distance would be different depending on each device's usage, the pixels per inch claimed as ''retina'' quality can be different for the smallest devices (326, iPhone and iPod Touch): greater than the mid-sized devices (264, iPad) and greater than the larger devices (220, MacBook Pro). |
'''Retina Display''' is a brand name used by [[Apple Inc.|Apple]] for [[liquid crystal displays]] which they claim have a high enough [[pixel density]] that the human eye is unable to notice pixelation at a typical viewing distance. The term is used for several Apple products, including the [[iPhone]], [[iPod Touch]], [[iPad]], and [[MacBook Pro]].<ref>{{cite web |url=http://www.apple.com/iphone/features/retina-display.html |title=Apple - Learn about the Retina Display |accessdate=2010-06-21}}</ref> As the typical viewing distance would be different depending on each device's usage, the pixels per inch claimed as ''retina'' quality can be different for the smallest devices (326, iPhone and iPod Touch): greater than the mid-sized devices (264, iPad) and greater than the larger devices (220, MacBook Pro). When an Apple product has retina display, each user interface widget is doubled in width and height to compensate for the smaller pixels. This mode is referred to as HiDPI mode by Apple. |
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Apple has applied to register the term "Retina" as a [[trademark]] in regard to computers and mobile devices with the [[United States Patent and Trademark Office]], [[Canadian Intellectual Property Office]], and in Jamaica.<ref>{{cite web|url=http://tarr.uspto.gov/servlet/tarr?regser=serial&entry=85056807|title=Latest Status Info - Serial Number 85056807|work=Trademark Applications and Registrations Retrieval|author=[[United States Patent and Trademark Office]]|accessdate=2012-06-19}} Claims priority filing date with respect to prior application in Jamaica.</ref><ref>{{cite web|url=http://www.cipo.ic.gc.ca/app/opic-cipo/trdmrks/srch/vwTrdmrk.do?lang=eng&status=&fileNumber=1483982&extension=0&startingDocumentIndexOnPage=1|title=Canadian Trade-Mark Data - Application Number 1483982|work=Canadian Trade-marks Database|author=[[Canadian Intellectual Property Office]]|accessdate=2012-06-19}} Also cites prior application in Jamaica.</ref> On November 27, 2012 the US Patent and Trademark office approved Apple's application and Retina® is now a registered trademark. |
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==Retina Display models== |
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The displays are manufactured by different suppliers. Currently, the iPad's display comes from the same suppliers [[Samsung]] use while the Macbook Pro displays are mostly made by [[LG]]'s suppliers,<ref>{{cite web|url=http://www.ifixit.com/Teardown/MacBook-Pro-Retina-Display-Teardown/9493/1|title=iFixit Teardown|accessdate=2012-07-09}}</ref> along with the iPhone and iPod Touch displays.{{citation needed|date=July 2012}}<!-- the July 2012 cite warning is specifically for the iPhone and iPod Touch evidence --> |
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==Technical information== |
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{{Unreferenced section|date=November 2012}} |
{{Unreferenced section|date=November 2012}} |
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Apple markets the following devices as having retina displays. |
Apple markets the following devices as having retina displays. |
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|[[iPhone 4]]/[[iPhone 4S|4S]] and [[iPod Touch]] (4th generation) ||rowspan=2| 326 || rowspan=2| 128 || [[Graphics display resolution#DVGA (960×640)|960×640]] ||rowspan=2| {{convert|10|in|cm}}||rowspan=2| 57 |
|[[iPhone 4]]/[[iPhone 4S|4S]] and [[iPod Touch]] (4th generation) ||rowspan=2| 326 || rowspan=2| 128 || [[Graphics display resolution#DVGA (960×640)|960×640]] ||rowspan=2| {{convert|10|in|cm}}||rowspan=2| 57 |
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Revision as of 17:32, 2 December 2012
Retina Display is a brand name used by Apple for liquid crystal displays which they claim have a high enough pixel density that the human eye is unable to notice pixelation at a typical viewing distance. The term is used for several Apple products, including the iPhone, iPod Touch, iPad, and MacBook Pro.[1] As the typical viewing distance would be different depending on each device's usage, the pixels per inch claimed as retina quality can be different for the smallest devices (326, iPhone and iPod Touch): greater than the mid-sized devices (264, iPad) and greater than the larger devices (220, MacBook Pro). When an Apple product has retina display, each user interface widget is doubled in width and height to compensate for the smaller pixels. This mode is referred to as HiDPI mode by Apple.
Apple has applied to register the term "Retina" as a trademark in regard to computers and mobile devices with the United States Patent and Trademark Office, Canadian Intellectual Property Office, and in Jamaica.[2][3] On November 27, 2012 the US Patent and Trademark office approved Apple's application and Retina® is now a registered trademark.
Retina Display models
The displays are manufactured by different suppliers. Currently, the iPad's display comes from the same suppliers Samsung use while the Macbook Pro displays are mostly made by LG's suppliers,[4] along with the iPhone and iPod Touch displays.[citation needed]
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Apple markets the following devices as having retina displays.
| Model [5][6][7][8] | PPI (pixels per inch) | ppcm (pixels per cm) | Resolution | - | iPhone 4/4S and iPod Touch (4th generation) | 326 | 128 | 960×640 | 10 inches (25 cm) | 57 |
|---|---|---|---|---|---|---|---|---|---|---|
| iPhone 5 and iPod Touch (5th generation) | 1136×640 | |||||||||
| iPad (3rd/4th generation) | 264 | 105 | 2048×1536 | 15 inches (38 cm) | 69 | |||||
| MacBook Pro with Retina Display 15" | 220 | 87 | 2880×1800 | 20 inches (51 cm) | 77 | |||||
| MacBook Pro with Retina Display 13" | 227 | 89 | 2560×1600 | 20 inches (51 cm) | 79 |
- For comparisons, see also: List of displays by pixel density
Criticism
According to Raymond Soneira, president of DisplayMate Technologies, the resolution of the actual human retina is higher than claimed by Apple, working out to 477 pixels per inch at 12 inches (305 mm) from the eye.[9] Phil Plait of Bad Astronomy wrote a response saying that "if you have [better than 20/20] eyesight, then at one foot away the iPhone 4's pixels are resolved. The picture will look pixellated. If you have average eyesight [20/20 vision], the picture will look just fine," and concluded, "So in my opinion, what Jobs said was fine. Soneira, while technically correct, was being picky."[10] Retinal neuroscientist Bryan Jones, using a similar but more detailed analysis, came to a similar conclusion on his blog, stating "...I’d find Apple’s claims stand up to what the human eye can perceive."[11]
See also
{{{inline}}}
References
- ^ "Apple - Learn about the Retina Display". Retrieved 2010-06-21.
- ^ United States Patent and Trademark Office. "Latest Status Info - Serial Number 85056807". Trademark Applications and Registrations Retrieval. Retrieved 2012-06-19. Claims priority filing date with respect to prior application in Jamaica.
- ^ Canadian Intellectual Property Office. "Canadian Trade-Mark Data - Application Number 1483982". Canadian Trade-marks Database. Retrieved 2012-06-19. Also cites prior application in Jamaica.
- ^ "iFixit Teardown". Retrieved 2012-07-09.
- ^ "Apple - iPod Touch - Technical Specifications".
- ^ "Apple - iPhone - Technical Specifications".
- ^ "Apple - iPad - Technical Specifications".
- ^ "Apple - MacBook Pro - Technical Specifications".
- ^ "Analyst Challenges Apple's iPhone 4 'Retina Display' Claims". Retrieved 2010-06-10.
- ^ "Resolving the iPhone resolution". Retrieved 2010-06-21.
- ^ "Apple Retina Display". Retrieved 2012-07-25.