What are the advantages of the AH-IPS screen used by Lenovo K860i?
What are the advantages of the AH-IPS screen used by Lenovo K860i?
2013-12-26 18:38

Earlier, we brought Lenovo's new K860i Unpacking And evaluating During the experience, the screen display effect of this mobile phone left a deep impression. According to the parameters provided by Lenovo, the K860i uses AH-IPS (3rd generation) screen, with a resolution of 1280 * 720, a screen brightness of 450nit, a contrast of 1000:1, and a color saturation of 72%. It uses a standard RGB pixel arrangement, but the viewing angle reaches 178 °. Before K860i, although AH-IPS material screens have been used in many products, there are not many introduction materials. What are the characteristics of this material? Try to popularize science.

AH-IPS is called Advanced High Performance In Plane Switching, or "High Resolution Hard Screen". It is a high-end LCD technology developed by LG Display and applied to smart phones. This technology is famous for its high color accuracy, high resolution and good energy-saving characteristics.

AH-IPS Principle

In the power consumption test compared with AMOLED, the power of AH-IPS screen is always 624mW, while that of Samsung Super AMOLED PLUS screen is 1130mW, almost twice that of AH-IPS screen. Of course, this does not mean that the overall battery life of the mobile phone will be doubled. The data given here is only for reference.

In terms of chromaticity characteristics, smart phones using AH-IPS have comprehensive advantages in chromaticity characteristics focusing on color accuracy and color uniformity. However, AMOLED only dominates the color contrast and color gamut in dark conditions. AMOLED style is gorgeous, but not real, while AH-IPS performance is closer to real color. Of course, the data can't explain everything. Many users love the gorgeous effect of AMOLED screen, which has nothing to do with the parameters.

The upper is AH-IPS screen, and the lower is ordinary IPS screen

In terms of image display quality, the images displayed by AH-IPS are more clear and natural, especially in terms of color contrast, sharpness, readability and overall image quality under general lighting. The viewing angle still has the advantage of wide viewing angle screen, 178 °/178 ° viewing range.

Returning to Lenovo K860i, we found that the color temperature of this screen is slightly warm, similar to that of Xiaomi 2, but not as obvious as that of Mi 2; It is quite different from the cool and gorgeous effect of Samsung Amoled screen; Compared with the cold white color of vivo X1, the contrast is also obvious. On the whole, the effect of this screen is relatively moderate. The slightly warm color tone will not be too tired in daily online reading and other applications, and it is suitable for a wider range of users.

In addition to Lenovo K860/K860i, many LG models have also used AH-IPS screens, such as LG Optimus 4X HD. As an extension of IPS, AH-IPS will compete directly with Samsung AMOLED screens.

Related reading:

Upgrade 1.6GHz quad core processor Lenovo K860i

Known as the Quad Core Terminator? Lenovo K860i Upgrade Evaluation

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