1. Determine the Type of Damage

- External screen damage: Touch function is normal, only the outer glass is broken.

- Internal screen damage: Display anomalies, lines, leaks, or touch malfunctions.

- Ribbon cable failure: Display works intermittently, may just need to reinsert the ribbon cable.

2. Preparations

Tools needed:

- Special screwdriver set (including Pentalobe and Phillips).

- Suction cup and pry tool.

- Hairdryer or heat gun.

- Anti-static gloves.

Part selection:

- OEM replacement screen (most expensive but best quality).

- Brand-compatible screen (best value for money).

- Low-quality screen (cheap but prone to issues).

3. Detailed Disassembly and Assembly Steps

- Safety shutdown: Press and hold the power and volume keys to shut down to avoid short-circuit risks.

- Heating to remove the screen: Evenly heat the edges at around 80°C for 2-3 minutes to soften the adhesive.

- Carefully separate: Gently lift the screen with a suction cup, slide a plastic pry tool along the edges, and pay attention to the position of the ribbon cable to avoid damage.

- Install the new screen: Disconnect the battery ribbon cable first, then dismantle the screen ribbon cable bracket, install the new screen, and test all functions.

4. Precautions

- Work in a clean, dust-free environment.

- Organize all screws to avoid confusion.

- Align all clips during installation.

- Test the new screen before applying adhesive.

5. Common Issues and Solutions

- Unresponsive touch screen: Check if the ribbon cable is properly inserted.

- Display anomalies: Try reinstalling the ribbon cable.

- Face ID failure: It may be due to damage to the front camera ribbon cable.

6. Repair Recommendations

For beginners without disassembly experience:

- Watch a complete disassembly video first.

- Have a spare phone ready in case of mishaps.

- Consider purchasing a screen kit with installation tools.

If you find the repair process difficult, seek professional help.

Remember, patience and attention to detail are the keys to successful repair. Don't get discouraged if your first attempt fails – practice makes perfect. Good luck with your iPhone screen repair! And remember, if you ever need professional repair services, don't hesitate to contact HRZ for assistance.

Everyone knows that a screen is composed of individual pixels, and what we call "1920 × 1080" actually refers to the number of vertical and horizontal pixels. The essential difference between OLED and LCD lies in their display principles. OLED can be simply understood as composed of countless red, green, and blue light bulbs that can emit light on their own, and macro display can be controlled by controlling the brightness and brightness of each bulb. And there will be a backlight panel on the back of the LCD, which displays different colors by passing through "filter paper" of different colors. ''



The working principle of LCD (Liquid Crystal Display) is to use liquid crystal molecules to change their alignment direction under the action of an electric field, thereby controlling the passage of light and achieving image display. LCD screens require a backlight source to illuminate the liquid crystal layer, and display is achieved by modulating the backlight source through the liquid crystal layer.



OLED (Organic Light Emitting Diode) is a self luminous display technology where each pixel can independently emit light without the need for a backlight source. When current passes through organic materials, light is emitted, and the brightness is adjusted by controlling the magnitude of the current.



Simply put, LCD is like a transparent piece of paper that requires sunlight or light to see the handwriting, while OLED is like a luminous panel that can emit light on its own.



What are the advantages and disadvantages of LCD and OLED screens compared?



The advantages of LCD are very obvious. Firstly, it does not have color cast like OLED. Secondly, LCD generally has full DC dimming or high-frequency PWM dimming. Therefore, another recognized advantage of LCD is that it is very eye friendly. In addition, LCD screens have a longer lifespan, even if it takes four to five years, it is difficult for the screen to burn out even if it turns yellow. LCD screens are more durable. ''

OLED screens have strong adaptability to new technologies, but they also have some drawbacks, such as easy burn-in, color cast, and relatively short lifespan. The burn-in phenomenon of OLED screens refers to the possibility of permanent pixel damage when a static image is displayed for a long time, resulting in residual images on the screen. And LCD screens do not have this characteristics of LCD OLED display principle: The backlight illuminates the liquid crystal layer, and the liquid crystal layer modulates the light to emit light independently. Each pixel can emit light independently. Advantages include eye protection, long lifespan, low screen burn-in, low cost, high contrast, fast response speed, and bright colors. Disadvantages include low contrast, slow response speed, uneven color, easy screen burn-in, color cast, and relatively short lifespan. Applications include televisions, computers, mobile phones, smart watches, VR devices, etc



From the table, we can see that LCD and OLED each have their own advantages and disadvantages, and there is no distinction between good and bad.





Is OLED or LCD better for mobile phone screens?



In fact, both types of screens have their own advantages and disadvantages. Although it cannot be directly measured by good or bad, what is certain is that due to the current development of smartphones towards full screen displays and the popularity of under screen fingerprints

From a technical perspective, OLED screens are the better choice because they are lightweight, have good display effects, and save power, all of which are means to enhance the user experience. From the user's perspective. ''



We also know that LCD technology has been developing for a long time and is more mature in terms of technology. Even with lower cost control, it can still display more natural and accurate color effects. ''



There is no standard answer to this question, and it needs to be judged based on individual usage needs and preferences.

If you are a user who pursues eye protection and durability, you can choose an LCD screen. LCD screens have better eye protection effects, longer lifespan, and are less prone to screen burn-in.



If you pursue the ultimate display effect, you can choose OLED screen. OLED screens have higher contrast, faster response speed, and brighter colors, which can bring a more immersive visual experience.





What are the future development trends of LCD and OLED screens?



In fact, there are significant differences between LCD and OLED in terms of display principles, energy consumption, and forms. OLED is relatively better as its light-emitting principle is more advanced. ''



With the continuous development of technology, both LCD and OLED screens are constantly advancing. The cost of LCD screens is decreasing, and there are also improvements in image quality and response speed. The lifespan of OLED screens is also constantly extending, and the problem of screen burn-in is gradually being solved.



In the future, LCD and OLED screens may be integrated and developed in more fields, such as Mini LED backlight technology and quantum dot technology, which will bring better picture quality and richer color performance.

LCD Screen Era: Foundation and Brilliance
Technical principles and characteristics
LCD (Liquid Crystal Display) technology is an important milestone in the development of mobile phone screens. Its working principle is based on the electro-optic effect of liquid crystals, which displays images by changing the passage of light through the arrangement of liquid crystal molecules. LCD screens typically consist of a backlight, polarizing film, liquid crystal layer, and color filters. The backlight provides uniform light, the polarizer controls the direction of light passing through, the liquid crystal layer changes the molecular arrangement under the action of an electric field, and the color filter converts the passing light into the three primary colors of red, green, and blue, thereby forming a color image.LCD screens have the advantages of low cost, stable display, high color reproduction, large viewing angle, and relatively low power consumption. In the early mobile phone market, LCD screens became the mainstream screen technology due to their mature technology and wide applicability. For example, TFT-LCD (Thin Film Transistor Liquid Crystal Display) became popular in the early 21st century and gradually became the mainstream display technology for mobile devices, providing users with clear and stable image display.
Market Applications and Limitations
In the era of LCD screens, many well-known mobile phone brands have adopted this technology. The classic models launched by established mobile phone manufacturers such as Nokia and Motorola were mostly equipped with LCD screens, meeting the basic display function needs of users at that time. However, LCD screens also have some shortcomings. Its response speed is relatively slow, and it is prone to dragging and ghosting, which is particularly evident when watching high-speed moving images. In addition, LCD screens require backlight modules to illuminate the screen, resulting in relatively high power consumption, and the black color performance is not pure enough, with low contrast.

The Rise of OLED Screens: Innovation and Breakthrough
Technical principles and advantages
OLED (Organic Light Emitting Diode) screens are a major innovation in mobile phone screen technology. Unlike LCD screens, OLED screens use self luminous technology, where each pixel can independently emit light without the need for a backlight source. The basic structure of OLED screens consists of several thin films, including an anode, a cathode, and an organic material layer located between the two. When current passes through, electrons and holes in the organic material layer combine to produce an excited state. When the excited state returns to the ground state, light is emitted.
OLED screens have many advantages. Firstly, its vibrant colors and high contrast can present more realistic and vivid images. Due to each pixel emitting light independently, it can truly turn off when displaying black, achieving almost infinite contrast. Secondly, OLED screens have faster response times and smoother visual effects, which can effectively reduce ghosting and residual effects. In addition, OLED screens also have the characteristics of being lightweight, bendable, and foldable, providing more possibilities for the appearance design of mobile phones.
Market Development and Trends

With the increasing demand of consumers for the display effect and appearance design of mobile phone screens, OLED screens have gradually become the standard configuration of high-end mobile phones. Apple, Samsung and other mobile phone brands have adopted OLED screens in their flagship models, driving the rapid development of the OLED screen market. According to Omdia's latest OLED Display Panel Market Tracking Report, smartphone AMOLED display panel shipments are expected to continue to grow in 2024, surpassing TFT LCD shipments for the first time. This growth trend is mainly driven by the strong demand for flexible AMOLED displays in the market.
In the OLED screen market, the performance of flexible AMOLED displays is particularly outstanding. Starting from the second half of 2022, Chinese display panel manufacturers have significantly reduced the manufacturing cost of flexible AMOLED panels, driving major smartphone original equipment manufacturers (OEMs) to upgrade mid-range smartphone screens from traditional rigid AMOLED and LTPS TFT LCD panels to flexible AMOLED panels. The trend of replacing this display technology will further accelerate in 2024, increasing the market share of flexible AMOLED from 28% of the total smartphone display panel market in 2022 to 40% in 2024.
Comparative analysis of LCD and OLED screens
Display effect
In terms of display performance, OLED screens have significant advantages. Its color vividness, contrast, and viewing angle are superior to LCD screens. OLED screens can present richer colors and deeper black, making images more realistic and vivid. LCD screens, on the other hand, have relatively weak color saturation and contrast, and their black color performance is not pure enough, making them prone to light leakage when displaying dark scenes.
power consumption
Due to the self luminous technology used in OLED screens, each pixel emits light independently and can be turned off when displaying black, resulting in relatively low power consumption. LCD screens require continuous operation of the backlight module, which requires a certain amount of power to maintain the backlight even when displaying black, resulting in relatively high power consumption. In practical use, phones equipped with OLED screens usually perform better in terms of battery life.
Cost and lifespan
LCD screen technology is mature and the manufacturing cost is relatively low, so it still has a certain competitiveness in the mid to low end mobile phone market. The manufacturing cost of OLED screens is relatively high, resulting in higher prices for smartphones equipped with OLED screens. In addition, the organic materials of OLED screens have a relatively short lifespan and are prone to aging and screen burn-in, which is also a challenge they face.
Application scenarios
LCD screens are suitable for the mid to low end mobile phone market that is cost sensitive and does not require high display performance, as well as certain specific application scenarios that do not require high power consumption. OLED screens are more suitable for the high-end mobile phone market, meeting consumers' pursuit of high-quality display effects and personalized appearance design. At the same time, the bendable and foldable characteristics of OLED screens also provide more possibilities for the design innovation of future mobile phones.


Outlook for Future Mobile Screen Technology
Exploration of Emerging Technologies
In addition to LCD and OLED screen technologies, emerging screen technologies such as Mini LED and Micro LED are also constantly developing. Mini LED achieves higher brightness and more precise light control effect by reducing the size of LED beads; Micro LED, on the other hand, designs the LED structure into a tiny size, achieving higher pixel density and finer image display effects. However, these emerging technologies are still in the early stages of development and face some technical challenges, such as the relatively complex backlight design of Mini LED, which requires precise control of the luminous effect of each LED bead; Micro LED is facing technological challenges such as chip manufacturing and mass transfer.
Combining with cutting-edge technology
In the future, mobile screen technology will be deeply integrated with cutting-edge technologies such as 5G and AI. The high-speed and stable transmission of 5G networks will bring higher resolution and refresh rate content display to mobile phone screens, enhancing users' visual experience. AI technology can achieve intelligent optimization of screen display effects, automatically adjusting parameters such as brightness, color, and contrast of the screen according to different usage scenarios and user needs, providing more personalized display effects.
Flexibility and Diversified Design
As consumers' demands for mobile phone appearance design and portability continue to increase, future mobile phone screens will further achieve flexible design, creating thinner, more durable, and bendable mobile phone screens. New screen forms such as foldable screens and curled screens will continue to emerge, bringing users new ways of use and interactive experiences. At the same time, the design of mobile phone screens will become more diversified to meet the personalized needs of different users.conclusion
The evolution of mobile screen technology from LCD to OLED is a vivid manifestation of continuous technological progress. LCD screens played an important role in the early development of mobile phone screens due to their low cost and stable display, while OLED screens gradually became the mainstream choice for high-end phones due to their bright colors, high contrast, and bendability. In the future, with the continuous emergence of emerging technologies and deep integration with cutting-edge technologies, mobile screen technology will develop towards higher resolution, higher refresh rate, lower power consumption, greater flexibility, and greater diversity. We have reason to believe that future mobile screens will bring us more stunning visual experiences and more convenient ways of human-computer interaction.

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 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?