Capacitive Touch is the Mainstream of Cocoa Touch Market

Published:2010/8/20 4:20:00 Author:Li xiao na From:SeekIC

The data shows that the sales of the cocoa touch products can reach 4.3 billion US dollar in the year of 2009, and it will increased to 14 billion in 2016 all over the world, namely, the future growth rate of the related products is eighteen percent. Apart from this technology, such high growth rate is hard to be found in the electric field. Two events play an important role of the cocoa touch technology’s success, one is the iPhone was released, the other is the windows of Microsoft supported the multi-point cocoa touch.

The cocoa touch is an indirect measuring technology; therefore, it has more than one hundred different kinds. For example, the capacitive touch judges the position by the process of current change; the ultrasonic defines the position by place of shadow. We can infer that all of them define the place indirectly. No matter what kind of indirect measuring technology, it can turn to be the cocoa touch technique through the algorithm, which is why there are so many kinds of cocoa touch technology.

Every kind of technology has its shortcomings, they are not perfect. For example, the capacitive touch, which is widely used by Apple, can not be operated when people wear the gloves; the optical touch can be used effectively on the large screen, while it has no use for the small screen. The patent of the main touch technology has been overdue, such as the capacitive, infrared ray and ultrasonic touch. There are twenty to thirty years so far. Therefore, more researches are needed in this industry. The most popular cocoa touch technology is projective capacity, which can measure the change of the current by finger. The advantage of the projective capacity can implement the real touch; however, it can be operated only by the finger pulp. The related integrated circuit is MC14490P.

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