Linkin Electronics International Co.,Ltd
Home > Knowledge > Content
Detailed explanation of the advantages and disadvantages of mobile phone LCD screen
Jun 19, 2018

In addition to the traditional TFT, OLED and other screens, the screen material and technology, such as NOVA, AMOLED, Suoer AMOLED, Super AMOLED Plus, IPS, SLCD, ASV and other very popular screen materials and technology, we will do a comprehensive analysis to all of us.

TFT screen

Due to the characteristics of balanced performance, high production and low cost, the TFT screen is widely used in mobile phone products. It is the most common screen in the market. TFT (Thin Film Transistor), a thin film field effect transistor, is one of the active matrix liquid crystal displays. It can actively control various independent pixels on the screen, which greatly improves the reaction time. The reaction time of general TFT is faster, about 80 milliseconds, and the viewing angle is large, generally it can reach 130 degrees.

Screen advantages: mature manufacturing process, better reducibility and contrast.

Inadequate screen: relatively power consumption, touch sensitivity and relatively poor sensitivity.

OLED screen

In fact, the current market OLED screen phone is not a lot, although in the TFT screen time, this type of screen is more advanced, Super AMOLED is based on the OLED screen evolution, but because of the popularity of AMOLED and Super AMOLED, the OLED screen is gradually fading out of the mobile market.

Screen advantages: large visual angle, power saving

The screen is insufficient: the color reduction degree is general, the service life is short.

NOVA screen

In the current global mobile phone screen, NOVA display is the most bright and clear, and easy to read, color display more vivid. The NVOA HD display can effectively avoid the problem of strong light reflection and image inaccuracy encountered by users in strong light. Even in the strong outdoor use of a mobile phone, the phone screen can show the most clear display effect, allowing the user to have a soft and relaxed reading effect in the indoor natural light.

Advantages of screen: high brightness and power saving

Lack of screen: visual angle

AMOLED screen

The full name of AMOLED is Active Matrix/Organic Light Emitting Diode, which can be colorized. In terms of performance, the AMOLED has a faster response, a higher contrast, and a wider perspective, which is a place where AMOLED is better than TFT LCD; and AMOLED has a self luminescent feature and does not need a backlight board, so it is more thinner and cheaper than TFT; and there is a more important feature that does not need to use the back. The AMOLED of the light board can save the cost of the backlight module that accounts for the proportion of TFT LCD 3~4, but it also exists in other cases with a slightly stronger sense of particle size compared to the same resolution.

Screen advantages: rich colors, fast reaction speed and large viewing angle.

Lack of screen: general color reduction

Super AMOLED screen

Compared with the traditional AMOLED display, Suoer AMOLED abandoned the previous touch sensing layer + display layer architecture design, and the operation was more sensitive. In addition, the elimination of glass covering layer also brings better sunlight display effect. At the same time, Super AMOLED also equipped with mDNIe (mobile digital natural image engine) technology can view from any angle and make a quick response.

Screen advantages: rich colors, large viewing angle and power saving.

Lack of screen: general color reduction

Super AMOLED Plus screen

Recently, we have always seen the term "Super AMOLED PLUS" on a three - Star dual - core model. In fact, the Super AMOLED Plus is a promotion of Super AMOLED. The biggest improvement is that the number of pixels in the new display will increase by 50% if the pixel is calculated in pixels, and the contrast and outdoor readability will be better than the previous Super AMOLED screen.

Screen advantages: fine quality, rich color, large viewing angle and power saving.

Lack of screen: general color reduction

IPS screen

The success of apple iPhone 4 has also created the popularity of IPS screen, which is the most advanced LCD panel technology in the world. Apple iPhone 4 combines IPS and Retina together to display a pixel point to four pixels. The pixel density increases by 4 times to 326ppi, and 300ppi is the resolution that people can see. 326ppi is the feeling of looking at paper when you look at the display screen. It also gets its name "retina screen".

Screen advantages: high color reduction, large viewing angle and high time comfort.

Insufficient screen: high power consumption

ASV screen

The full name of ASV is Advanced Super-V, which is derived from Sharp Co. And other different places are ASV (Advanced Super-V) technology, not a type of panel technology, but a technology to improve the quality of the image, mainly by reducing the space between particles on the liquid crystal panel, increasing the aperture on the liquid crystal particles, and adjusting the arrangement of the liquid crystal particles to reduce the LCD TV. Reflection, increase brightness, angle and contrast.

Screen advantages: large visual angle, fast reaction speed

Lack of screen: the color richness is more general

VGA WVGA QVGA HVGE XGA only refers to screen resolution. They are code names and materials.

QVGA:320*240 pixels

WQVGA:400*240 pixels

HVGA: 320*480 pixels

VGA: 640*480 pixels

WVGA: 800*480 pixels

XGA:1024*480 pixels