At present, the screens used by mainstream mobile phones can be classified into LCD and OLED from a wide range. The two screens have essential differences in terms of illumination. One is illumination by an external light source, and the other is self-illumination. . Popular Science Popularizes the classification of mainstream mobile phone screen materials. The mobile phone screen is an important part of the composition of the mobile phone, and its display effect will directly affect the experience of the whole machine. At present, there are many conceptual terms about the screen, which makes it difficult to distinguish. For example: IPS, Retina, ASV, etc. Many people think that they represent the material of the screen, but it is not. To be correct, the current mainstream mobile phone screen materials can be classified into two categories: LCD and OLED.
First, the current mainstream LCD screen
LCD is a relatively traditional screen material, the technology is relatively mature, and the extension can be divided into more sub-class screens, such as: TFT, IPS, SLCD. What needs to be mentioned here is that TFT and LCD have overlapping concepts. TFT is also considered as a general term for all LCD panels. According to the general usage, TFT is classified as a sub-category of LCD in this paper.
1, IPS screen
The IPS screen is commonly called "Super TFT". As you can see from the name, the IPS screen is based on the advanced version of the TFT screen, but its essence is still the TFT screen. The advantage of the IPS screen is that the display effect is transparent, bright, and the viewing angle is large, and the viewing angle close to 180° can be achieved.
In practical applications, the most typical case of IPS screens is the Apple iPhone series, such as iPhone 4 and iPhone 4S. It is also Apple's iPhone to carry forward the application of IPS screens in mobile phones. In addition, the recent hot 360 special machine AK47, Haier super battleship and other models, also use high-resolution IPS screen, the actual effect is slightly less than the iPhone's display, so the same IPS screen, the display effect is still Not the same, it also depends on the display technology and optimization of IPS.
2, TFT screen
The TFT mentioned here is a classification of LCD, which is a prototype of all current LCD screen improvements. The performance of this screen is quite satisfactory. The current use cases include: Motorola Defy+, Sony ST25i, Sony LT22i and so on. Although TFT is theoretically an old screen material, the actual display effect of the manufacturer is still unsatisfactory because of the technical optimization of these products. However, some small-sized brand mobile phone products use a relatively low-cost TFT screen to save costs, and the display effect is somewhat uneven.
3, SLCD (SuperLCD) screen
It can be said that the SLCD screen is an advanced step of the LCD screen, which is closer to the display effect of the OLED screen in terms of color expression and viewing angle, and the color reproduction is more realistic and does not appear color cast.
The popularity of the SLCD screen is mainly attributed to HTC, because most of the brand's mainstream models use the screen of the material, and achieved very good market recognition. Representative models are: HTC G11 (incredible S), HTC Mozart, HTC G14 (Sensation), HTC G18 (Sensation XE) and so on.
In addition, the One X and One V models in the HTC New Generation One series use the Super LCD second-generation screen. The display effect of this screen is obvious to all, the permeability is very good, the saturation is also controlled in place, and it is highly recognized by many users.
Second, the branch of OLED - Samsung AMOLED screen
At present, the mainstream AMOLED screen belongs to a branch of the OLED screen, and the main technology is in the hands of Samsung. At present, AMOLED screens have been developed to three generations: AMOLED, Super AMOLED, and Super AMOLED Plus. In addition, Super AMOLED also extends the Super AMOLED Advanced and HD Super AMOLED screens, mainly because of the difference in resolution.
The biggest difference from the LCD screen is that the OLED screen is imaged by self-illumination of the pixels. From this perspective, OLED screens are more advanced than LCD screen technology. In addition, the OLED screen can be made thinner in thickness, which is beneficial to the thickness control of the whole machine.
The most typical representative of OLED screens - Samsung AMOLED screen features: high brightness, even in the sun, the display is still excellent; in addition, the screen's color contrast is very high, and even cause color cast, some users are disgusted, this can be said It is a disadvantage that can be said to be a shortcoming. It can only be said that each has its own merits.
1, AMOLED
AMOLED is Samsung's first-generation AMOLED screen, and it is not used much now. Representative models include Nokia N86, Nokia N8, etc., and other brands have earlier applications on mobile phones, but their popularity is not high.
2, Super AMOLED
Super AMOLED is the second-generation AMOLED screen. Later, the Super AMOLED Advanced and HD Super AMOLED screens are extended. This screen is also a very widely used screen. It has performed well on Samsung's own mobile phones in the early stage and has become one of its killer advantages.
Super AMOLED screen has high color saturation and bright display, but due to the P arrangement, the particle height is strong. However, the Super AMOLED Advanced and HD Super AMOLED screens have higher resolution, which can alleviate the graininess to a certain extent. In particular, the graininess of the HD Super AMOLED screen has been well controlled and it has been very good.
Super AMOLED representative models: Samsung I9000, Samsung Nexus S, Samsung I8700 (Omnia 7), NOKIA Lumia 800 and so on.
Super AMOLED Advanced represents models: Motorola XT910, HTC One S, Huawei P1 and so on.
HD Super AMOLED representative models: Samsung Galaxy Note, Samsung Galaxy Nexus (I9250), Samsung GALAXY SIII (I9300).
3, Super AMOLED Plus
The Super AMOLED Plus screen is mainly for the improvement of Super AMOLED, from the Pentile sub-pixel arrangement to the traditional RGB arrangement. In this way, the drawbacks of the Super AMOLED screen with strong graininess can be changed to some extent. However, through the comparison of the screens of Samsung's two generations of I9100 and I9000, the graininess of Super AMOLED Plus has indeed improved, but the color cast seems to be more serious. In addition, from the recent launch of several new Samsung models, Samsung seems to be more willing to use the HD Super AMOLED screen, after all, the current high resolution can already offset the graininess.
Super AMOLED Plus represents models: Samsung I9100, Nokia 900, OPPO Finder.
to sum up:
At present, the screens used by mainstream mobile phones can be classified into LCD and OLED from a wide range. The two screens have essential differences in terms of illumination. One is illumination by an external light source, and the other is self-illumination. These two screens have their own advantages, among which the LCD camp's HTC One X and the OLED camp's Samsung GALAXY SIII are also the most representative of the two screens, which are widely praised by users. Judging from the current development situation, these two camps will continue to be used in order to meet the needs of different users for color performance.
