In the early 1970s, humans began to explore the use of touch displays for human-computer interaction, which appeared in some industrial and commercial equipment, such as POS terminals and elevator buttons. After that, Nokia introduced the resistive screen to the mobile phone, partially replacing the role of the mechanical keyboard. Until the launch of the iPhone in 2007, it opened up a new mode of touch technology mobile terminal interpersonal operation, and became a milestone in the development of the touch industry. 

Apple pushed the capacitive touch technology to the mainstream, and it is still widely used today. With the rapid development of technologies such as mobile Internet and cloud computing, people's demands and requirements for touch display technology are also increasing, and the development of touch display technology has never stopped.

According to market research, global touch display revenue is expected to rise to 31.9 billion US dollars in 2018. Among them, the capacitive touch display occupies the first place in the market share of the entire touch display, and the market capacity is huge.

Undoubtedly, touch displays have become a hot spot in the market. In applications, smart phones are still the mainstay. However, as the growth momentum of the smartphone market slowed down in 2014, it entered a period of flat development. Touch display applications other than mobile phones, such as automotive electronics, retail, medical, public facilities, leisure and entertainment, etc., will promote the rapid growth of the touch display market.

In addition to large-scale applications, in subdivisions, more professional and customized touch displays can also be greatly innovated. The applied products have been extended to tablets with pen writing function, e-books, all-in-ones, electronic whiteboards, etc. And the pen and the hand can be used at the same time, and the pen can also write at the same time while the hand is touching.