1、 Original screen
Original screen refers to a screen produced by a mobile phone manufacturer that is identical to the original screen of the phone. The advantage of this screen is its superior quality and good compatibility with other parts of the phone, ensuring the best display effect and user experience. However, the price of original screens is usually higher due to their production costs and strict quality control. If your phone is still under warranty or you have high demands for screen quality, choosing an original screen is a good choice.

2、 OEM Screen
OEM (Original Equipment Manufacturer) screens are screens produced by partners of mobile phone manufacturers, with similar quality to original screens but usually at a more affordable price. The production process of OEM screens also follows strict standards, so their display effect and service life can be guaranteed. If your budget is limited but you want to get a user experience close to the original screen, then OEM screens are a cost-effective choice.
3、 Compatible with screens
Compatible screens are screens produced by third-party manufacturers, designed to be compatible with multiple phone models. The price of this type of screen is usually lower, but the quality and display effect may vary depending on the manufacturer. When choosing a compatible screen, it is recommended to carefully compare products from different brands and models to ensure that they meet your usage needs. Although screen compatibility may pose certain risks, it is still a viable option if you do not have high requirements for your phone screen or have a very limited budget.

4、 Press fit screenPress fit screen is a type of screen that combines a display screen and a touch screen. The advantage of this screen is that it is reasonably priced, and the display effect and user experience are relatively good. However, the compatibility and stability of laminated screens may not be as good as original or OEM screens, so careful consideration is needed when choosing. If your phone model is relatively rare, or if you do not have high requirements for the display effect and stability of the screen, then pressing the screen may be a suitable choice.
When choosing a mobile phone screen, in addition to considering the screen type and price, it is also necessary to consider the convenience of installation and maintenance. If you do not have the relevant technical knowledge, it is recommended to seek the help of professionals to ensure a smooth screen replacement process.

The difference between the two



1. Thickness: LCD screens are thick and hard, and cannot be bent; OLED screens can be bent, making them softer and thinner. From a structural perspective, AMOLED thickness can be nearly 30% thinner than LCD.





2. Price: Due to the mature technology of LCD, LCD is cheaper in terms of price.



3. Service life: LCD screens use inorganic materials, while OLED screens use organic materials. OLED screens have a shorter service life than LCD screens.



4. Color expression: LCD emits light through backlight refraction, so when displaying black, there may be light leakage and whitening around the screen, making black more similar to gray. OLED can express colors through self emission, resulting in a more vivid and full display effect, but there is a risk of screen burn-in.

(Representation of Black)



5. Energy consumption: The luminous principle of LCD is that the color filter film will cause a decrease in light efficiency. Some analyses suggest that the utilization rate of LCD for backlight brightness will not exceed 15%, and 85% of energy is wasted. Therefore, OLED is more energy-efficient than LCD.



LCD is never a slave



OLED screens are often referred to as "blind screens" due to the issue of screen flicker. When adjusting screen brightness, OLED screens use PWM dimming, which is commonly understood as turning on and off every second to control brightness. The brightness is adjusted by the proportion of screen on/off time within the interval.



As long as I light up and turn off quickly enough, my brain cannot feel that I am rapidly switching between light and light states. For some people who are sensitive to screen flicker, PWM dimming is particularly unfriendly to their eyes at low brightness, especially at night, which is why some people may feel obvious eye pain and soreness when using their phones at night.



However, many manufacturers later introduced DC modulation to solve the problem of screen flicker, but with it came the problems of screen burn-in and uneven brightness.



LCD enthusiasts are shouting: LCD will never be enslaved, because of the fatal problem of OLED screen flicker.

(Screen flicker display under camera, image sourced from the internet)



future trends



Although OLED has screen flicker issues, in daily use, the human eye cannot clearly perceive it. Only those who are very sensitive to screen flicker will truly feel discomfort.



OLED with greater power than excess has more advantages, such as better contrast, better black performance, wider color gamut, lighter, thinner, bendable, and so on. That's why mainstream flagship phones now choose OLED screens.

In the future, the development trend of mobile phones will also move towards full screen, curved/foldable screens, and under screen fingerprint and under screen cameras, and the position of OLED will not be shaken. LCD screens will be more commonly used in mid to low end smartphones due to their low cost and mature technology.



So, whether to choose LCD screen or OLED screen, Haoge has summarized their respective advantages and disadvantages for everyone. If you are particularly sensitive to screen flicker, it is recommended to choose LCD. In addition, choosing OLED screen can bring a better visual experience.

Comparison of Three Packaging Technologies


1. COG (Chip On Glass): This is one of the most traditional packaging methods, with low technical barriers and low costs, and is the most commonly used technology for screens. From the English version, it can also be seen that this packaging method involves placing IC chips and FPC cables on the back glass of the screen. However, due to the IC chip being located directly below the LCD, a considerable amount of screen space is squeezed, inevitably resulting in a "chin".




2. COF (Chip On Film): Essentially, it is an upgraded version of COG and a key factor in the current screen transformation. The main principle is to place the display driver IC chip into a flexible FPC cable, and then fold it under the screen using the characteristics of the FPC itself. Specifically, through hot pressing, the Gold Bump of the IC chip and the Inner Lead on the flexible substrate circuit will be bonded together. Due to the release of space occupied by IC chips, the lower frame width can generally be reduced by at least 1.5 millimeters.






3. COP (Chip On Pi): It belongs to the process with the most reduced borders, but it should be emphasized that the premise of this process is the application of flexible OLED screens, which utilize the bending characteristics of flexible OLEDs to bend all cables and ICs below the screen. Of course, OLED is also divided into two types: hard screens and flexible screens. To use this technology, a combination of COP packaging technology and flexible OLED must be used. However, this technology still has the disadvantages of high cost and low yield rate.





After introducing the technical foundations of COG, COF, and COP, let's take a look at the practical application of COP technology on Samsung S8. This phone adopts innovative COP screen packaging technology, which allows the screen edges to bend without physical limitations, achieving a nearly borderless visual effect. This technology not only enhances the aesthetic appearance of mobile phones, but also brings them a wider display space.

The performance of the Chinese market is particularly outstanding. Starting from 2023, the Chinese market will surpass other markets and become the world's largest foldable screen mobile phone market. IDC predicts that in the next five years, the proportion of the Chinese market in the global foldable screen mobile phone market will remain stable at over 40%.

Specifically, in the first half of this year, the shipment volume of foldable screen smartphones in the Chinese market reached 4.98 million units, a year-on-year increase of 12.6%. Among them, Huawei's performance is particularly prominent, occupying 75% of the Chinese market share with a record high of 3.74 million units.

Specifically, in the first quarter of 2025, Huawei shipped 2.84 million units, accounting for approximately 76.6% of the market share; Following closely behind are brands such as Honor and OPPO, but far behind Huawei. Although there was a slight decline in the second quarter, Huawei still maintained its dominant position with a market share of 72.6%.

IDC pointed out that Chinese manufacturers are generally leading the global popularization of foldable screen technology by relying on mature local supply chains, high user acceptance, and precise market strategies. Huawei not only successfully boosted sales, but also promoted the localization of materials and core components in the industrial chain, further enhancing China's independent and controllable capabilities in this field.

Of course, the most significant feeling for consumers is that the current foldable screen prices are becoming increasingly affordable. In fact, this is also the result of the continuous expansion of the market and the continuous decline of supply chain costs. And more affordable prices can further drive market growth, thereby driving down the prices of foldable phones and gradually replacing conventional phones. So the question is, have you used a foldable phone yet?

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