After the introduction of 4K video service Youtube Beginning in 2010, an official with the entertainment market, the human quality digital video standards, from 1080P Full HD upgrade to 4K Ultra HD. Meanwhile, the US market research NPD Group Display search recently published market research, in 2013 the global OLED shipments from the original estimate of 20,000 audience fell to 5,000 units, and will also optimistic about the 2017 original 9 million units shipped next revised to 400 million units.
However, in the OLED market is shrinking at the same time, 4K TV is speed growth, following the 2013 global shipments reached 1.95 million units, it is expected in 2017 will reach 6,065 million units, accounting for 20% of the total LCD TV market. Also declared the OLED market has become past tense, 4K time has come.
4K TV will lead 4K phone appear.
Full HD TV after a few years to become the market mainstream, Full HD picture quality in mobile phones began to appear, such as familiar to everyone, htc Butterfly, Sony Xperia Z, Samsung Galaxy S4 and Galaxy Note 3, and so on. We can say that from 2013, Full HD resolution has been listed as the flagship model of the standard specifications, while at 4K resolution has become now, the emergence of new standard of 4K TV, but also represents on the phone screen to enjoy 4K resolution picture quality, just around the corner.
According to sources, Samsung has already started to develop a 4K mobile phones, and is expected to launch in 2014 than it is now on the market higher resolution smartphone screen, and then plans to publish 3840 x 2160 resolution screen mobile phone products in 2015.
A recent evaluation report stated handset Samsung SM-G900S show this rumor of Samsung's new machine has a 1440p screen resolution, it would be Galaxy S5, Galaxy F or Galaxy Note 4 it? Although still not known, but in MWC 2014 in February, Samsung will certainly be to let the world amazed products displayed. It also represents, 4K phone has been far from us.
4K phone's deficiencies: capacity, bandwidth, power size.
The first is the capacity issue, even monolithic Blu-ray discs (single-layer 25GB / double 50GB) are fit 4K film, when 4K movie to enjoy on your phone, memory capacity is the biggest problem, even through Youtube or other online Watch video services to existing mobile network bandwidth, the online watch may only look like ultra-high-resolution slides as it is intolerant. In content, the current 4K film, only a handful of movies shot with 4K cameras such as: "After Earth", "Oblivion" and so on, or use like the Samsung Galaxy Note 3, Galaxy J and other support 4K video's Mobile self shooting.
On the other hand, play 4K video requires a lot of CPU and GPU computing, the existing battery technology is capable of operation without an external power supply, let us read a complete 4K film is still unknown; not to mention heat etc. detail problems to solve. Moreover, watching 4K movie with the screen size of a mobile phone, do you really think it is also regarded as a treat it?
4K you really need it?
Now, let's talk about PPI. After Steve Jobs to show the world the iPhone 4 Retina Display technology, we suddenly began to notice the impact of PPI quality on the phone, compared to emphasize Full HD resolution, Apple in the opposite direction to the other mobile phone manufacturers, launched resolution of only 1136 x 640 iPhone 5s, emphasis on "quality" of Apple, the Retina Display with 326PPI breakthrough blind spot, so that consumers once again amazing.
However, only Apple noted that PPI is important? Samsung Galaxy S4 on the 5-inch 1080p screen, but also has high PPI 441, followed by the introduction of 1440p If, as the rumor said the 5.4-inch screen, PPI even as high as 543, which is already beyond the human eye can distinguish the level shown, You will never see the phone screen one by one "pixel."
Obviously, Retina Display than technical strength, is more like an advertising effect, but it is undeniable that the quality performance over 300PPI phone screen does look more delicate than the other screens, fine. Simply put, as long as the same size of mobile phone screen in "plug" into the higher resolution, PPI is likely to break through the sky, leaving only the UI, interface, and you watch the content on the phone, is not able to show PPI presented high quality.
Back to the original user needs on this matter, the last time you read in the mobile phone of a Full HD movie is when? Within the limits of memory and battery life, you can use the phone to read a complete 4K movie? 4K is the future of mobile phone display large screen, but you really need 4K phone?
Glossary:
PPI: per inch pixel density, and print commonly used DPI Similarly, the higher the value, the representative of the finer screen display. Research indicates that the human eye can distinguish the highest pixel density of 300PPI, thus exceeding 300PPI display screen is known as Retina (Retina) display. However, the human eye can distinguish between two distances and human vision and observation pixel image also has great relevance. Further, the display brightness is different, or is mediated by different values of the image display (paper or display), the resolving power of the human eye will change. Therefore, "the upper limit of the human eye to distinguish the pixels of 300PPI" certain advertising components. (Source: Wikipedia- pixels per inch )
2K: 2048 x 1080,2048 x 1152 refers to these two resolutions.
2KHD: 2560 x 1440 resolution.
4K: 4K is a new ultra high-resolution standard (3840 x 2160 and 4096 × 2160), is four times the 1920 x 1080 resolution by the end of 2012 CEA (Consumer Electronics Association) regulations, must meet the 3840 x 2160 or more, can be called 4K. In addition, each vendor for 4K resolution think the different generations that includes QHD (Quad HD), UHD, Ultra HD and 2160P and so on. But because QHD easy with representatives of 960 x 450 qHD (Quarter HD) confuse the current tendency to UHD as 4K resolution in lieu of that.
Comments
Post a Comment
Please leave your comments and suggestions here.