At present, the touch screen is not a new technology. The touch screen is a new type of display for human-computer interaction. Compared with the traditional display, keyboard and mouse input, the input of the touch screen is simpler. Direct and convenient. Whether it is a variety of inquiry machines, KTV jukeboxes, or our mobile phones, tablets, smart watches and other products, we have touch display technology, which has become very popular in our daily life and has become an indispensable part.
In 2010, Apple's ipad 1 and iphone 4 were hot, which opened up the comprehensive detonation of the mobile terminal innovation war. In the blink of an eye, the smart phone with touch screen fully occupied the market. In terms of medium size, at the end of 2012, Microsoft introduced a new generation of operating system Windows 8, a Metro interface equipped with a touch display. Its intuitive and simple operation directly stimulated the development of a new generation of multi-touch capacitive display. In 2013, a lot of touch notebooks were introduced. Although the sensitivity is almost the same as that of mobile phones, touch notebooks have been greeted by the market due to limitations in systems, operating habits and prices.
2010 Apple's ipad 1 and iphone 4 hot sale set off a touch boom
Today, touch notes and computers have not been able to occupy too much market share. This embarrassing situation is in stark contrast to the fierce competition in the small-screen market. It can be said that with the opening of the mobile smart touch mobile phone market, touch display has become a hot topic in the field of consumer electronics, and has become one of the important areas of display technology development.
At the end of 2012, Microsoft introduced a new generation of operating system Windows 8 specifically equipped with touch display
Touch display technology from the earliest dot matrix infrared touch technology, to the single-touch resistive touch screen, to the most popular multi-touch capacitive screen, and even the latest 3D Touch technology concept. Along the way, the technical difficulties that touch screen displays need to overcome are nothing more than larger touchpads and higher performance processors. Looking back at history and looking into the future, what are the prospects and changes in the display and touch field? How will we change our lives?
Touch display chain spans nearly 20 industries
At present, the world's important touch display panel manufacturers are concentrated in Japan, South Korea, China, and Taiwan. Touch panel industry chain, mainly from upstream materials - glass substrate, PET film, ITO target, midstream material processing - chemical materials (glue, soft board, control IC) and panel manufacturing, downstream touch module and final The composition of various electronic products. In general, the touch screen industry chain that the electronics industry focuses on is mainly midstream sensors (including ITO glass, ITO film) and downstream touch screen modules.
In general, the touch screen industry chain spans nearly 20 sub-sectors from upstream to downstream. From the perspective of the upstream components, the touch sensing IC, the microprocessor, and the firmware are closely combined to form a touch controller. There are also sensors, etc., which can be used as touch panels after assembly. Plus the surface lens and display become the touch screen, and the fit of the surface lens is the key to the yield.
According to the different sensing technologies, the touch panel can be divided into four types: resistive, capacitive, optical, and acoustic.
According to different sensing technologies, the touch panel can be divided into four types: resistive, capacitive, optical, and acoustic. Among them, the optical and acoustic models developed earlier, but due to the limitations of use, they have not been fully developed and applied. At present, the development of resistive and capacitive touch technologies is very popular and the technology is also relatively mature. Taking a capacitive touch panel as an example, the development process requires driving IC manufacturers, complete machine manufacturers, touch screen manufacturers, and operating software manufacturers to cooperate with each other, and the degree of customization is very high.
For capacitive touch panels to achieve precise positioning, it is necessary to solve the interference problem and correct the process defects of the task, so it also needs to be deeply customized. At the same time, the anti-interference of the electric field induction drive and the uniformity of the ITO coating process are difficult to be greatly improved in a short time, so the degree of customization of the capacitive touch screen is difficult to reduce.
Sensors are currently involved in more companies
The three components of the touch screen module are the Sensor, the Cover Lens and the Control IC.
As a highly customized product, the life cycle of each product is very short, which requires the manufacturer to have a fast climbing speed, and the yield will be quickly increased within the first three months of the most concentrated shipments. It can be economically profitable if it is raised to a very high level. In particular, mobile phone manufacturers now require touch screen module manufacturers to paste the touch screen and LCD display before shipping, so it is especially important for touch screen manufacturers to quickly improve the yield. For this reason, the technical barriers of capacitive touch screens are very high and industrialization is very difficult. The three components of the touch screen module are the Sensor, the Cover Lens and the Control IC. Among them, controller manufacturers are among sensors and downstream customers, playing an important role in the process of promoting touch screens. The sensor field is currently the most involved.
Specific to the sensor industry, although the core technology and leading technology of touch screen production are concentrated in Japan, South Korea, the United States and Taiwan, with the advancement of technology and process of domestic manufacturers and the obvious cost advantage, industrial transfer has taken place. In the long run, because the capacitive touch screen is highly customized, the division of the industrial chain is more efficient than the vertical structure, so the sensor foundry will always have a place in the industrial chain. Therefore, as the demand for capacitive touch screens grows, sensor foundries will have a bright future. However, when the industry supply and demand balance, due to the weaker dependence of module manufacturers, the status of sensor foundries will decline. Therefore, for sensor foundries, long-term need to expand upstream and downstream to strengthen the status of the industrial chain.
Potential market and prospects for touch display applications
In-vehicle interaction, commercial, and education are both opportunities and challenges for touch display
For the touch display industry with a large industrial chain, all parties have seen its huge development prospects. The touch industry has received strong investment from all parties, making the technology progress rapidly; but it is precisely because more and more The company's volume has come in, resulting in its production capacity continues to rise, and the market application has not been correspondingly improved, making the company more and more profitable. The profitability of the entire touch panel industry has declined significantly since 2012. In 2013, it experienced a large-scale merger and restructuring period. In 2014, practitioners in the touch-screen industry clearly felt unprecedented market pressure, many small factories closed down, and even some large companies applied for bankruptcy restructuring. And this year, the whole industry is seriously experiencing a situation of oversupply, and output expansion is obvious, but the profit rate continues to decline. Although the reality is rather embarrassing, the touch display industry has broad prospects. By improving technology and lowering prices, it will be able to deepen the application in various industries and open up more potential markets.
Under the tide of Internet+, the era of Internet of Everything has arrived, people's demand for intelligent operation has rapidly increased, and more and more rely on touch screens, which has also given birth to a larger market potential for touch display. With the rapid update of downstream products, the hardware and software technology of touch display has developed rapidly. Touch display technology, like many technological innovations in the display field, has spread from small size to large size. The terminal products of the touch panel are the same. In addition to small and medium-sized mobile phones, tablets, notebook computers, digital cameras, etc., the huge future market of touch products includes large-sized commercial products, touch screen displays used in electronic classrooms, and conference rooms. Touch monitors, digital signage, etc. are used in industries such as retail, medical, government, corporate, education, transportation, etc.
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