Comparison of LCD screens of different mobile phones

The quality of the screen determines most of the experience of a mobile phone, and the market was once firmly controlled by suppliers such as Sharp, from Sharp in the LCD era, JDI to Samsung, LG in the OLED era, and the Chinese-made screen at that time was still synonymous with low quality, struggling in the low-end market. And now more and more mobile phone manufacturers directly advertise that they use domestic screens, so is the domestic OLED screen really rising?

 

Let's look at the K50 Extreme Edition of the Tianma screen, the K50 Champion Edition of the Huaxing Optoelectronics screen, and the OnePlus Ace Pro with the BOE screen compared with the Samsung S22 Ultra. These domestic OLED screens are relatively mid-range prices, and the screen quality may not be the best among domestic OLED, but the price is similar, and the time point is also recent, and the supply is relatively sufficient, which to a certain extent can represent the basic quality of the current Chinese OLED.

 

 

Let's enter the comparison link ,Speaking of Chinese-made OLED The screen, The point that everyone is most concerned about may be the pixel arrangement ,But as shown in the picture, the star arrangement does not appear, The three screens all use diamond-like arrangement, In order to avoid Samsung's technical barriers, China's domestic screen manufacturers have chosen to work the shape of the sub-pixel, Therefore, the equivalent resolution can be basically on par with the Samsung screen, Ignoring the difference in physical resolution, The fineness of the three screens is qualified, There is no need to worry about this。

 

 

Next, let's take a look at the test data of the instrument, First of all, the brightness index, The three Chinese-made screens are at the same level, All around 500 nits,Samsung S22 Ultra is only 500 nits in the default state, But after turning on the hidden extra brightness option, the brightness soars, It can reach 800 nits,The overall peak brightness is still Samsung's main battlefield。 Auto-excitation brightness reaches more than 1100 nits,OnePlus's BOE screen performance is average, Only about 850 nits,Huaxing screen can reach980nits or so, It is the best performance of these Chinese screens, On the contrary, it is not very optimistic about Tianma, Excitation brightness is nearly 1000 nits,This peak brightness is very close to the Samsung screen.Of course, local excitation brightness, Chinese-made OLED The still has a certain gap with Samsung's top screen, After all, the local peak brightness of Samsung's own flagship can top 1800nits. Only from the brightness level, China-made OLED has caught up, it can be said that there is a gap, but it has not been left too far by Samsung's top screen.

 

 

 

Another hard indicator that determines the quality of the screen is the color gamut and color accuracy, They directly determine which colors you can see from this screen, And how accurate these colors are, This indicator has a certain relationship with the quality of the screen, But it mainly depends on the mobile phone manufacturer's ability to adjust the screen, First of all, the test results under the default color. Explain in advance, Because the default mode of Samsung mobile phones is the vivid mode that can cover the widest color gamut, Direct comparison is unfair, So for the sake of fairness, Here we only compare three Chinese-made models, In general, the three screens, In the default mode, the color gamut color accuracy is basically above the passing line, The performance is excellent, Of course, some people may think that the default mode is too bright, So it will turn on the professional mode, OnePlus and Samsung call it natural mode, Because they are all limited according to the color standard of SRGB, Therefore, they will not let go of themselves for the sake of please, so the color accuracy of each family is the best in this mode. BOE and Tianma, the two screens, still perform well in this mode, The worse performance is Samsung, It's even worse than the default mode of Chinese screens。 Finally, there is the vivid mode, The main battlefield where each screen flies itself, Just look at the color gamut coverage, The basic performance is very good, But high coverage does not mean that the perception is good, In the vivid mode, Each has a tendency to be oversaturated, The performance of color accuracy is a mess, The worst of them is still Samsung, On the contrary, the color accuracy of these Chinese screens is much stronger than Samsung. It seems that in the area of color, adjustment is more important.

 

 

In addition to brightness and color, Another thing that affects the look and feel of the screen is the color temperature, In the default color mode, The color temperature of the white background of the four screens is high, Among them, Samsung's cheapness is relatively low, The other three are all above 7000K,The actual look and feel also verifies this, Samsung's screen looks yellow to the naked eye as a whole, Develop green after lowering the brightness; And the coldest hair color in China is the BOE screen, Huaxing screen is warmer than Tianma screen。 In terms of comfort, it must be the Pro mode, in which the color temperature of the four screens has dropped significantly, all of which are around 6300K.

 

 

 

 

Finally, look at the viewing angle, Samsung uses micro prism technology to improve brightness, Resulting in serious discoloration when flipping the phone, But the Chinese screen is not much better, Only the Huaxing screen has no obvious color cast。 At the level of other parameters, Samsung's screen adopts LTPO process, so it has a refresh rate of more gears, and other Chinese screens have lost this benefit because of the price. However, it is precisely because of this technology that there is a big gap between Samsung screen and Chinese screens in terms of screen flashing. Huaxing and Tianma screens support 1920HZ high-frequency PWM dimming, After actual testing, these two screens are high-frequency dimming at full brightness, Very green and eye protection。 The Golden Oriental screen has a screen flicker at low brightness, but the screen flicker basically disappears at high brightness. On the other hand, traces of low-frequency PWM dimming can be found at the full brightness of the Samsung screen. If you are a sensitive user of screen flicker, it is more comfortable to use it for a long time or a Chinese-made screen.

 

 

 

Etrade can provide these four different mobile phone models LCD screens, which can meet your requirements for different quality and different price points. If you have a need, please feel free to contact service@etradesupply.com.