A major selling point that is being used by manufacturers about their flagship devices is the quality of the display. The LG G4 is no different, sporting a robust Quad HD Display powered by IPS Quantum Technology. So what exactly does all that mean? What is the difference between 720p, 1080p or Quad HD? What does the p even mean? Here is a breakdown of high definition and what it means on anything from your giant HD television, to your handheld mobile device.
Let's start with the basics: What is HD?
HD stands for High Definition, and is the current standard which supersedes Standard Definition. HD in the US is defined as anything with more than 480 horizontal lines or pixels.
What does the P stand for?
The P stands for Progressive Scanning. Progressive Scanning generally shows a better picture that when you see the letter I (Interlaced Scanning). When watching in Progressive Scan, every line of pixels in the display refreshes in every frame. Interlaced Scan alternates the image refresh by vertical pixels on one frame and horizontal pixels on the next. This is less favorable for anything in motion, which makes displays with a P instead of an I more desirable on anything which will be used to watch any moving video.
What does the number (720, 1080, 1440) mean when talking about resolution?
So, the LG G4 has a Quad HD display which runs at 1440p. What exactly does that mean? That means that while the standard for HD is 1080p, the LG G4 runs at a higher resolution with it's 1440p display. This is because on 1080p, the screen diplays 1.920 x 1,080 pixels (each pixel is a point that combines to create the larger picture, thus the more pixels in the area, the higher detail and contrast is at your disposal). A display running on 1440p displays 2,560 x 1,440 pixels. In the case of the G4, this translates to an amazing 538 PPI or Pixels Per Inch.
Does the resolution really matter on a smart phone?
As with any other feature on any technology device, it matters if it's important to you. Depending on how you use the device, you may never see the difference between a 720p and 1440p display, but if you use the device to view photos and/or watch video, the resolution quality is quite apparent. While some may say that it isn't noticeable on a display that size and from the average distance at which people look at their screens, all this talk is still up for debate. While many complex charts exist to try to assess how we see things, there is still a huge intangible to science in perception, or how the brain chooses to view an image.
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| While many complex charts exist to try to explain resolution and how you see it, individual perception will always make this science very inexact. |
In my particular studies and performing side-by-side comparisons playing the same video, there was a discernible quality difference between the same video playing on a 5.5" 1080p (iPhone 6 Plus) display and the same size display with a 1440p (LG G3) resolution. The variance in quality is quite dramatic when doing this test on a 720p (iPhone 6) versus a 1440p (LG G3). I have noticed, however, that certain people with brand loyalties fail to see the contrast or consider it negligible. I would challenge you to go to a store with live devices and try the experiment on your own to get your individual result.
What in the world does the LG G4's IPS Quantum Quad HD mean?
Again, just when you think you have a grip on things, someone invents something new and throws longer and more complex names on everything. The simple translation on what makes this display superior is simply that compared to other 1440p displays, it is 25% brighter, has 50% increased contrast and has 56% increased color quality. This is most noticeable when doing a side-by-side video comparison with another flagship device, the Samsung Galaxy S6. When watching the same video the S6 tends to look slightly more cartoon-like as the intense saturation of colors makes some colors too vivid, and some seem to blend into one another, creating less clarity in areas of shadow. As with the previous area, I would challenge you to do a side-by-side and see if your eyes capture the same as mine.
That's it for this installment. Please feel free to leave questions or comments! I am more than happy to help with any questions you may have.
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