LG has announced its latest innovation, a smartphone screen with a 5-inch, 1920x1080 pixel resolution display. It has 440ppi pixel density, coming in ahead of Apple’s 330ppi Retina display. It is close to the 477ppi a perfect human eye can see, and the device with the highest pixels per inch currently in existence.

LG ppi retina display eye

Advanced High Performance In-Plane Switching technology was used to create the screen. LG says the technology offers high color fidelity, rapid touchscreen response, better viewing angles and a stable image. The screen was designed to be used on smart devices like mobile phones and tablets.

LG’s new smartphone screen has a 16:9 widescreen aspect ratio. With apps like Netflix a hit with many smartphone owners, a screen that offers better video viewing may be a plus for users. LG says the display provides the same viewing quality as home televisions and computer monitors.

The new screen offers improvements over every area of LG’s  previous 4.5 inch screen. It’s 0.5 inches larger, has 2.2 times more pixel density, and is 1.3 times more advances in pixels per inch than LG’s last 329ppi, 1280x720 screen. No devices using the screen have been announced at this time.

The display will come with some drawbacks. When Apple created the new iPad, it had to increase the lighting, the battery and the housing to hold the new display technology. Devices utilizing the LG screen will need to find ways to increase power and battery life, or risk having very low battery life.

The screen is being displayed in June in Boston, at the SID 2012 Display Week trade show. It will be released to the public in the second half of 2012.

Though some reports say the iPhone 5 will feature a higher-resolution screen than the iPhone 4S, there is no official news yet. The new screen could potentially have a pixel per inch measurement equal to or surpassing that of the LG screen.

Tags: 16:9 phone, better video viewing, HD displays, HD phone screen, HD smartphone, LG smart display, LG smartphone, mobile displays, PPI measurement