01Overview of Screen Technology
◆ Basic structure of capacitive touch screen
In the evolution of touch screen technology, we have witnessed the competitive landscape from IPS, AMOLED, SLCD to OGS, while also witnessing the rise of In cell and n-cell technologies. In order to gain a deeper understanding of the three screen technologies of In Cell, On Cell, and OGS, we first need to analyze the basic structure of the screen. The structure of a capacitive touch screen is divided into three layers: the top layer is a glass cover plate, which is responsible for protecting the screen and transmitting tactile sensations; The middle layer is a capacitive touch layer, responsible for sensing and responding to touch signals; The bottom layer is the display panel, responsible for presenting images and colors.
The capacitive touch layer is composed of an ITO touch film layer and an ITO substrate. The display panel consists of an upper substrate, a liquid crystal layer, and a lower substrate from top to bottom. In the early days, frame pasting technology created a layer of air between the touch layer and the display panel, which affected the display effect. However, by using full lamination technology to eliminate this layer of air, the reflection problem of the screen has been significantly improved, making it more transparent when lit up and darker when turned off, eliminating the gray and white appearance.
Differences in Traditional Screen Structure
Traditional G/G and GFF screens both follow a similar structure: cover glass, touch layer, and display panel. But the difference in touch layer is the key to these two screens. Specifically, the structure of G/G and GFF screens is similar, with the main difference being the touch layer. The touch layer of G/G screens consists of one layer of ITO substrate and one layer of ITO touch film, while the touch layer of GFF screens consists of two layers of ITO substrate and two layers of ITO touch film (named ITO: X and ITO: Y respectively). Obviously, G/G screens have an advantage in thickness.

Comparison of Emerging Screen Technologies
Nowadays, OGS screens are favored by touch panel manufacturers, while In Cell and On Cell screens are highly regarded by display panel manufacturers such as Apple LG、 Samsung and Sharp, among others. Both of these screen structures have abandoned the traditional touch glass layer, thus achieving a thinner and lighter design. However, the key difference between the two lies in the integration position of the touch layer. Specifically, the OGS screen uses the same glass to achieve touch functionality; In Cell embeds the touch film layer into the display panel; On Cell places the touch film layer on top of the upper substrate. This difference affects screen design and performance.

02Comparison of In Cell, On Cell, and OGS
◆ Display effect differences
OGS screens perform better than In Cell and On Cell in terms of transparency and visual effects. Therefore, although well-known brands such as Apple and Samsung use In Cell screens, their simple screen transparency and visual effects are not superior to some domestic phones that use OGS screens.
◆ Lightweight and impact resistant
In terms of lightness and thinness, In Cell stands out with its lightweight and compact features. In Cell is the lightest and thinnest due to the integration of the touch layer into the display panel, which is also one of the reasons why iPhone can maintain its lightness and thinness even with a metal body. In contrast, OGS and On Cell are slightly inferior in terms of thinness. In terms of screen impact and drop resistance, On Cell performs the best, followed by OGS, while In Cell is relatively weaker. It is worth noting that OGS, by combining the cover glass with the touch layer, may weaken the strength of the glass during the processing, making the screen relatively fragile.

◆ Touch effect and technical complexity
OGS screens have higher sensitivity, while In Cell and On Cell interaction have lower sensitivity, but rely less on touch chips. High sensitivity may also bring problems, such as "screen jumping" phenomenon, which may be caused by fine dust, sweat or water vapor leading to misoperation of the touch screen. In contrast, in Cell screens directly integrate touch and liquid crystal layers, resulting in higher sensing noise and requiring specialized touch chips for filtering and correction. OGS and On Cell screens have relatively low dependence on touch chips.

Production cost and yield rate
From a technical perspective, the technical complexity of In Cell and On Cell is higher than OGS, and the difficulty of production control also increases accordingly, leading to an increase in manufacturing costs. In terms of yield, the initial production yield of In Cell screens was relatively low, which affected the supply of iPhone 5. But with the continuous technological investment and process improvement of manufacturers, In Cell technology was once affected by low yield rates, and now the yield rate has increased, approaching On Cell and OGS.

1、 Understand the difference
In the field of mobile phone repair and maintenance, the terms "original screen" and "factory screen" are often heard, which sound similar but actually have significant differences.
Original screen "refers to a screen produced by an original equipment manufacturer (OEM), which is provided by the device manufacturer and therefore has high quality and consistency. However, they may not be produced on original equipment.Original screen "refers to a screen produced by an authorized manufacturer, usually on the equipment of the manufacturer, with high quality and consistent manufacturing standards.
2、 How to choose the appropriate screen
Choosing the right screen is crucial when you need to replace your phone screen. Here are some suggestions for selecting the correct screen:
1. Get to know your phone. It is very important to understand your phone brand, model, and screen size before purchasing any phone accessories.
2. Choose a screen of appropriate quality. Choose high-quality screens, purchase from mobile phone manufacturers or authorized service centers, and ensure they provide warranty and support.
3. Identify the screen. If you are unsure whether you have obtained an original screen or a factory screen, you can observe the screen features and display quality to make a judgment. Original screens may sometimes have minor flaws or defects, while factory screens typically do not experience such issues.
3、 Summary
When it is necessary to replace the phone screen, it is particularly important to understand the difference between "original screen" and "factory screen" and choose the correct screen. Although these terms sound similar, they have different meanings and uses. Choose a high-quality screen and purchase it from a mobile phone manufacturer or authorized service center to ensure that you will receive support and warranty.

1、 What is OLED flexible straight screen?



To understand the difference between the two, one must first clarify what OLED is. Simply put, OLED uses a very thin organic material coating, which can achieve self illumination without the need for backlighting. It can be understood as OLED being composed of countless "small light bulbs". But whether it's a flexible screen or a hard screen, the materials used are the same. The main difference between them is the substrate material, which is the material supporting the OLED.



Flexible screens generally use PI and other flexible materials as substrate materials

Hard screens generally use hard materials such as glass as substrate materials



What exactly is a flexible straight screen? To put it bluntly, it's just about installing OLED flexible screens into straight screen phones.





2、 What are the benefits of using a flexible straight screen?



1. Due to the use of flexible materials as substrates, flexible screens have thinner screen thickness and lighter weight, which reduces the overall thickness, size, and weight of the phone. The thickness of mobile phones with large batteries/ultra fast charging like the K50 series is extremely terrifying, and using a hard screen will make the feel even more uncomfortable.



2. Due to its softness, flexible screens will have greater improvements in screen packaging technology. The use of COP packaging technology can make the black edge of the phone chin smaller, resulting in a better phone experience.



3. Flexible screens have a soft constitution, which can better protect the screen in the event of a phone falling or bending. In the event of damage to the external screen, a flexible screen can provide greater protection from the impact.

On Samsung OLED screens, rainbow patterns may appear on hard screens. However, many netizens have found that Samsung's flexible screen does not have this problem. This can also be considered a special place.





3、 Why didn't straight screen phones use flexible screens in the beginning?



To put it simply, it's still a matter of cost. In the past few years, the cost price of flexible screens was several times higher than that of hard screens, and COP packaging technology is also a high cost and low yield technology. In this way, the cost price will rise sharply.

Summary: The difference between mobile OLED flexible screens and hard screens lies in the substrate material used for the screen. And the flexible straight screen is actually to put the flexible screen into a straight screen phone for use. Flexible screens have thinner thickness, lighter weight, and better drop resistance. When choosing a mobile phone, it is better to choose a flexible screen.

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?

Price reference for mobile phone screensUpon entering a mobile phone repair shop, you will discover that the prices for screen replacements vary widely across different brands and models. Taking Apple phones as an example, here is a simple price reference for you:iPhone 13 seriesPrice of the outer screen: approximately 500~700 yuanPrice of the inner screen: approximately between 600 and 1300 yuanScreen assembly price: approximately around 1600~1900 yuaniPhone 14 seriesPrice of outer screen: approximately 700~900 yuanPrice of the inner screen: approximately 900~1700 yuanScreen assembly price: approximately around 1700~2300 yuaniPhone 15 seriesPrice of the outer screen: approximately around 1100 yuanPrice of the inner screen: approximately between 1200 and 2200 yuanScreen assembly price: approximately around 1700~2400 yuaniPhone 16 seriesScreen assembly price: approximately around 1700~2400 yuan
Why is it so expensive to replace a phone screen?The reason why mobile phone screens are expensive lies primarily in their complex composition. A complete mobile phone screen typically consists of an outer screen (touch screen), an inner screen (display screen), and an adhesive layer in between.When a mobile phone screen is shattered, it could be due to a cracked outer screen or simultaneous damage to both the outer and inner screens. Therefore, during the repair process, it is often necessary to replace both parts simultaneously. This not only increases the complexity of the repair but also raises the repair cost.Moreover, with the continuous development of mobile phone technology, the composition and structure of mobile phone screens are also constantly being updated and upgraded. The emergence of these new technologies may also lead to an increase in the cost of repairing mobile phone screens.In addition, apart from the cost of the phone screen itself, the technical cost of replacing a phone screen is also significant. This is because the connection between the screen and the motherboard has become increasingly precise, and even the slightest mistake can damage other components.Therefore, the cost of repairing a screen is high due to the nature of the phone screen itself and the technical difficulty of the repair process.
How to find a repair service for screen replacement of a mobile phone?There are generally three ways to repair or replace a broken mobile phone screen:Firstly, one may choose official maintenance, which is transparent in price and guaranteed in quality, but often comes at a high cost;Secondly, through third-party repair platforms, the prices are relatively cheaper.Lastly, if you have all the necessary tools, you can also try purchasing a screen and replacing it yourself.It is important to note that one must possess relevant replacement experience and knowledge reserves, otherwise it is easy to end up making a mess of the replacement process.Of course, if you want an experienced technician to replace the screen of your phone, you can always turn to Geek Repair.Whether it's a broken outer screen, damaged inner screen, or a need to replace the entire screen assembly, we offer on-site repair services. You can easily solve your phone screen issues without leaving your home.