The reign of Apple's Retina Display as the highest-quality mobile screen in the land may soon come to an end.

At this week's SID Display Week show in Los Angeles, Toshiba unveiled a new 4-inch display with a pixel density of 367ppi (pixels per inch). With that many pixels, the screen easily bests the iPhone's 3.5-inch display, which offers 326ppi.

More pixels per inch means better visual quality, and Toshiba's screen is headed to a smartphone near you.

Apple's highly praised Retina Display launched last year with the iPhone 4. At the time, the display was a marvel in the mobile market, delivering the best pixel density of any platform. The previous iPhone, for example, had just 163ppi.

However, people may not be able to tell a difference between 367ppi and 326ppi. It is believed that the human eye cannot see detail over 300 ppi, which may even out the playing field between the two display options.

Aside from pixel density, Toshiba's new 4-inch display comes with a resolution of 720x1,280 pixels and a contrast ratio of at least 1,000:1. Its viewing angle is a solid 176 degrees, according to the company. Apple's Retina Display, by contrast, boasts a resolution of 960x640 pixels and a contrast ratio of 800:1. Its viewing angle is likewise wide, but I couldn't find the exact figure among the iPhone 4's specs. Sumber : http://news.cnet.com/