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What restricts notebooks from becoming thinner? Jun 29, 2018

As the main tool of today's mobile office, smart phones have a history of more than 10 years. During this time, the size of mobile phones is getting bigger and bigger, and functions are getting richer and more powerful. However, thin and light mobile phones are more suitable for easy work, business trips and simple audio and video entertainment.

When the first generation of the iphone was born, its small and exquisite lightness made the world amazing, and now it has become the past. With the continuous advancement of technology, many products have surpassed it. Today's mobile phone market has entered the millimeter level of competition, but it seems to have encountered a bottleneck, after the thickness of less than 10mm, every 0.1mm reduction is a very difficult thing, what restricts the phone becomes thinner?

1, shell material

Lightness and thinness are two conditions, and there is no inevitable connection between the two. It is for this reason that manufacturers are constantly trying new materials and trying to reduce the occupation of internal space in various ways. Materials are mainly engineering plastics, aluminum alloys, carbon fibers, etc. Currently, the most widely used on smart phones is aluminum alloy materials, among which magnesium aluminum alloy is preferred for its high ductility and lightweight quality, while carbon fiber is customized for luxury (for example, carbon fiber version iPhone X) is the main application product. Reducing the internal space, mainly reducing the size of the circuit board and compressing the cooling system. As for the space of the battery, it is difficult to compress the battery if it is guaranteed to last.

2, life requirements

The length of life is determined by two factors: battery capacity and overall power consumption. The longer the battery capacity, the longer the battery life, and the lower the power consumption, the longer the battery life. Nowadays, if you want to get a long battery life, you can only work together with the battery technology and reducing the power consumption of major chips and accessories. Although there has been no breakthrough change in battery technology in recent years, the overall progress is steadily advancing towards small-sized and large-capacity batteries. At the same time, new types of batteries are being studied. It is hopeful to reduce the thickness and weight of the body by reducing the size of the battery, but needs time.

Similarly, in terms of reducing power consumption, major chip manufacturers and OEMs are working tirelessly. In terms of the core CPU of smart phones, Qualcomm has introduced a low-power version of the processor, compared to the standard 3 Power consumption, power consumption of the low-voltage processor greatly prolongs the battery life while guaranteeing performance. In addition, the choice of other accessories is mainly to guarantee the battery life, such as memory, hard disk, and display screen, etc., and the power of the whole machine is greatly pulled down. Consumption.

3, cooling requirements

Heat dissipation is the biggest drawback of mobile device products. Because a large number of heating elements need to be squeezed in such a narrow space, how to quickly derive heat is a problem that smart phones must consider before designing. The common heat dissipation method is to evenly channel the heat of the chip to the housing of the mobile phone, which mainly includes heat dissipation of thermal grease, graphite heat dissipation, phase change heat dissipation, heat pipe heat dissipation, and the like.

In fact, there is a certain relationship between heat dissipation and power consumption. The power dissipation of low-power products is relatively small, which is why the 600-processor products introduced by Qualcomm can meet the demand through passive heat dissipation. However, the user's demand for performance has forced manufacturers to choose lower power processor products with higher power consumption.

Display screen

The display screen is an indispensable part of the smart phone. The space it occupies is relatively small, but the thickness it occupies in the thickness measurement with 0.1 mm accuracy cannot be ignored. With the development of display technology, the thickness of today's display panels is also greatly reduced, as is power consumption.

The thin and light limit of the mobile phone is bound to exist, but where does this limit know nothing about, iPhone6 did 6.9mm, in the future will there be thinner than it? The answer is definitely yes. As an important component of the mobile phone supply chain, mobile phone batteries and power banks manufactured by Shenzhen Wanshuntong Technology Co., Ltd. have been dedicated to being lighter and thinner.However, the realization also requires the common efforts of major manufacturers, and the breakthrough in a series of technologies such as chips, heat dissipation technology, housing materials, and screen technology can allow the mobile phone to break through the limits once again.