1、 Why is the screen of an iPhone malfunctioning and jumping

1) The touch screen is broken (such as encountering greasy or magnetic environments).
2) The motherboard is leaking electricity. 3、 The battery is aging and damaged.

Generally speaking, the third possibility is the highest, and choosing to replace the battery can solve the problem of iPhone jumping.

2、 How to solve the malfunction and jumping of the iPhone 5s touch screen:

1) When users encounter screen malfunction while using their mobile phones, they can long press the home button while the screen is locked to enable voice control function. Then at this point, it is said that players can choose to play a song and then select the touch function to restore it. We can wait for a while and then we will find that the touchscreen issue has been fixed.


2) Users can also wait until their phone runs out of battery, and the phone will enter an automatic shutdown state. At this time, users can charge the phone and then restore touch screen operation after turning it on.

3) Users can connect their iPhone 5s to iTunes and upgrade their iPhone 5s to the latest version of the iOS system. (jailbroken users need to be aware that they cannot directly upgrade their iOS version on iTunes)

4) Users can also choose to double-click the home button, and then we will exit all programs running in the background, which is also a solution to screen failure.

5) Users can long press the power button on their phone and then hold down the home button to return to the home screen. This is also a solution to screen malfunction.




3、 IPhone 6/6 Plus touch screen malfunction? Solution to screen malfunction

1）. The first thing to do is to restart the iPhone and simultaneously press the "sleep/wake" button (also known as the power button) and the Home button until you see the Apple logo displayed on the screen.
2）. Some users solve this problem by selecting "Settings" - "General" - "Reset" - "Reset All Settings" in sequence. Users need to re-enter their password, change their wallpaper, and reset their Touch ID, but their data will not be deleted.


3）. Users who encountered iPhone 6/6 Plus touchscreen malfunction were able to solve the problem by restoring factory settings, but all information on the phone will be lost, so users need to back up important data in advance. Afterwards, users may need to set up their iPhone 6 like a new phone, and some users claim that restoring backed up data from iTunes or iCloud will cause this problem to occur again.
There are also some available methods that everyone can try:

——You can clean the screen with a slightly damp, lint free soft cloth.

——Do not use the device immediately while wearing gloves, when your hands are wet, or after applying hand cream.

——If you are using a phone case or plastic protective film or film on the display screen, try removing the screen protector and testing the device without them.


Open the "Map" application and double-click on each corner, then press the middle button to verify if it has zoomed in to each section.
If a certain area in other application software is affected, please note this location and try to verify the touch function of this location in the "Map" application software.


The main reason for Apple phones experiencing a situation similar to "touchscreen malfunction and jumping" is due to touchscreen malfunctions or low battery power, etc. Therefore, when we encounter this situation, the first thing we need to do is to determine the specific part of the problem based on our own judgment measures. Then, we can solve it by long pressing the power button or restarting the phone, and other basic steps. If we still cannot achieve normal use after trying this method, we can also seek help from professional maintenance personnel.

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.

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.

Collaborative innovation, industry university research collaboration to forge the technological highland of "Chinese screen"

As a leading Chinese enterprise in the AMOLED field, Vishino has always been driven by technological innovation and has joined forces with Tsinghua University and domestic material manufacturers to launch technological breakthroughs in the field of OLED material devices. After years of research and development, the company has successfully overcome key technological bottlenecks and released the fourth generation pTSF material device system. This system has been comprehensively upgraded from three dimensions: luminous efficiency, color gamut coverage, and device lifespan. It not only achieves purer color presentation, lower energy consumption, but also extends screen lifespan. It has officially been put into mass production and commercial use, adding core chips to the competition of "Chinese screens" in the global market.

Technological breakthrough, redefining AMOLED performance benchmark

In the development process of OLED technology, how to simultaneously achieve high efficiency, long lifespan, and high color purity of OLED has always been an important research issue. Compared to traditional OLED devices, the fourth generation pTSF device technology introduces multiple energy transfer modes, ultimately emitting light from a fluorescent emitter, achieving 100% internal quantum efficiency utilization. Moreover, the exciton lifetime of devices using pTSF technology has achieved a leap from microseconds to nanoseconds, suppressing exciton annihilation and quenching processes within the device, thereby achieving higher efficiency and longer lifetime, as well as higher color purity.

As the "barometer" of the global display industry, the SID exhibition in 2025 saw Vishino launch high-efficiency pTSF device products and wide color gamut pTSF device screens globally, which attracted widespread attention in the industry for their performance. Data shows that screens equipped with high-efficiency pTSF devices reduce power consumption by over 12% and increase lifespan by 15% compared to traditional devices. Taking a smartphone with a daily battery life of 10 hours as an example, installing this screen can increase usage time by an additional 1.2 hours, effectively solving the pain point of "fast screen power consumption" in mobile devices. The wide color gamut pTSF device body has achieved breakthroughs in color reproduction, covering DCI-P3 color gamut (>99.5%) and Adobe RGB color gamut (>99.5%), with color accuracy reaching professional design level, meeting the needs of professional scenarios such as image creation and graphic design, while reducing energy consumption by more than 6% and increasing lifespan by 20%. At present, high-efficiency pTSF devices have completed mass production and begun to be applied in various mobile electronic devices in batches.

The technological breakthrough of Weixinnuo cannot be separated from the support of the industry university research collaborative innovation system. As a pioneer in China's OLED industry, the technological roots of Weixinnuo can be traced back to the OLED project team of Tsinghua University in 1996- it was this early technological exploration that accumulated a solid research and development foundation for the company. As of now, Weixinnuo has applied for over 20000 OLED related patents, with invention patents accounting for up to 89%. The patented technology covers the entire industry chain, including materials, devices, processes, and equipment, forming a complete technical protection system. In terms of industry standards and innovative achievements, Vicino has broken the monopoly of foreign enterprises: it is a Chinese enterprise that * formulates international standards for flexible displays, has won more than 20 global "*" innovative technologies and applications, more than 50 national "first" breakthroughs, and has also won the "first prize of the the State Technological Innovation Award" of the display industry *, becoming the "synonym" of China's display technology innovation.

In November 2024, Professor Duan Lian from Tsinghua University gave a keynote speech on the improvement of OLED performance at the screen technology press conference held by Weixinnuo. The two sides had in-depth exchanges on the research and development details and application scenarios of pTSF technology, further deepening the cooperation between industry, academia and research. In fact, the breakthrough of pTSF technology is the result of long-term cooperation between the two parties. The advantages of Tsinghua University in the field of basic research complement each other's experience in industrialization, accelerating the process of technology from the laboratory to the market. Practice has proven that the advantages of pTSF technology in key indicators such as color purity, efficiency, and lifespan not only validate the effectiveness of industry university research collaborative innovation, but also provide a replicable model for the technological upgrade of "Chinese screens".

The mass production and commercialization of the fourth generation pTSF material device system by Visionor is not only an important leap forward for the company's own development, but also promotes the key transformation of "Chinese screens" from "technology *" to "product *", which is of milestone significance in the global display industry. This achievement marks that "Made in China" has completely shed its identity as a "follower" in the AMOLED field, and has become a "leader" in the industry through independent innovation. In the future, it will continue to promote technological changes in the global display industry, allowing "Chinese screens" to shine even brighter in the global market.

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