Analysis of Lumia 1520 screen technology

After the birth of Nokia Lumia 1520 can be said to break a number of "first" title, such as the history of the largest screen of the Nokia mobile phone, the first 1080p screen Windows Phone mobile phone, the first Windows Phone quad-core mobile phones and so on. In the eyes of Nokia, Lumia 1520 is not only defined as a mobile tablet device, but unlike the previous Nokia Lumia 1520 in addition to the selling point of the PureView camera, its screen technology has become the user's focus of attention.

In fact, as early as the Symbian era, Nokia's mobile phone in the screen display technology has a deep research, and this screen technology was named Nokia screen technology. The Nokia Lumia 1520 is not only equipped with a 6-inch 1080p IPS screen, but also joined the ClearScreen screen technology. This is explained in the official publicity: Nokia Lumia 1520 has excellent outdoor visual effects, high brightness mode, but also supports the use of gloves, nails operation.

Recall that Samsung and LG recently introduced curved screen devices, namely Samsung GALAXY Round and LG G Flex. Common to both devices is the use of curved OLED screen technology. But for Nokia, many people may not know that the Lumia family was actually equipped with a curved second-generation Gorilla glass screen very early, which made us wonder whether Nokia will bring us a similar curved screen device in 2014.

Remember before Nokia's official statement stated that Lumia 1520 was equipped with the best screen ever made by the company. Jussi Ropo, Nokia display and touch technology manager, said: "On the level of providing consumers with new experiences, the Nokia Lumia 1520's 1080p screen is the most perfect screen we have ever built." In addition, Elop also highlighted the 1520's 1080p screen in the sun has a very good visual effects at the conference, and is also using the Assertive Display Algorithm mode. This is even more important than resolution.

The reason why Nokia is so confident is also inextricably linked with the two technologies introduced next. Let's take a closer look at the two screen technologies of the Lumia 1520.

First of all, let's talk about ClearBlack Display. For this technology, Nokia explained: “The principle of ClearBlack Display is similar to that of polarized sunglasses. When it is sunny, if you use it without polarized light, When you look directly at the water surface, you can't see anything below the surface of the water. Similarly, if you don't have the screen technology, you can only see the reflection on the screen. With it, you can see the screen. But the screen technology is different from sunglasses, which is that it can enhance the vividness of color: the reason is that the contrast is higher and it looks more vivid."

For a typical smart phone, it is often achieved by increasing the brightness of the screen to get better performance, but it will inevitably increase the power consumption of the screen. However, it can effectively solve this problem.

In fact, in addition to the successful screen display technology, we also found the Assertive Display technology used in the Lumia 1520. The emergence of this technology is mainly to enable the Nokia Lumia 1520 to increase the visibility of the screen outdoors without sacrificing endurance. Therefore, Assertive Display technology is currently the best screen management function.

In the past, the smart sensor equipped with a light sensor can automatically adjust the brightness of the screen according to the light conditions. However, the Assertive Display does not change the brightness, but adjusts the color and brightness of each pixel independently, and the whole adjustment process does not cause loss of endurance. The screen can also be dynamically adjusted according to the lighting environment.

All in all, the Lumia 1520 screen does a good job. It is not simply changing the brightness of the screen display, but adjusting the contrast between the pixels to make it appear clearer. From this point of view, the successful screen technology with Assertive technology is the key to the success of Lumia 1520.