| Foreword: [The human-machine interface industry was officially announced by Apple's iPhone in the long-term brewing. Everyone was surprised and repeated, and it could not be calmed for a long time. In the atmosphere of the blue sky as the curtain, the guidance of the dawn, and the loud forward music, the touch technology has caused widespread repercussions, which is indeed a rare phenomenon in the industry in recent years because: (1) The new product concept introduced by the new human-machine interface has activated vitality in a new and unconventional 3C product. (2) Under the modular design concept, the fading system integrates the creative peripheral nerves to suddenly recover the perception, allowing the system designer to activate the creativity in the module combination experience. (3) The introduction of new technologies will affect the re-combination of the entire upstream and downstream industrial chain, and they are considered to be indispensable. (4) The application area is far from ever, NB, mobile phones, PDAs, handheld game consoles, MP3 music players, navigation systems, ATMs, etc. have been fully impacted. At present, the published touch technologies include resistive, surface capacitive, infrared, projected capacitive, electromagnetic, optical imaging, embedded optical inspection and composite (referred to as electromagnetic and capacitive). Each faction has its own advantages and disadvantages, and each has its own application. Although the cost/performance is always the test standard, the appearance of the iPhone makes the touch panel change qualitatively, which makes the multi-finger touch form the mainstream specification, and stimulates the industry to rethink the use and application of the human-machine interface, and then squeeze various types. The layout of the touch technology . |
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Third, the key to winning the patent layout
As for the patents on the structure of ITO optical films, the development of touch panels for more than a decade, the layout of various patents has made this industry mine full of various touch panels, of course, the original creators will have protection. There are more than 100 patents related to projected capacitive panels. The successor has almost no space to intervene. At present, the projected capacitive panel is mainly in the hands of Synaptics, Apple and Taiwan Shengda. For a simple example, the touchpad must click/double-click on the action (Xinsi, Shengda). If you want to detect the side with multiple fingers, it is also a patent (Shengda, Elan), if you want to slide on the board. (Shengda, Xinsi, Elan), after the multi-finger detection to do other page flipping action (Apple), those are patents. At present, there are not many and a large number of products invested in the projected capacitive type. It can be seen that in the near future, certain knives will shine.
Fourth, the integration of upstream and downstream industries
As the touch industry affects the entire industry chain, the integration of upstream and downstream industries will be an important observation indicator for future development. The biggest obstacle of the projected capacitor itself is the condition of system integration and application. After all, the panel must be installed on the screen. The noise and the noise generated by other circuits in the system can easily interfere with the touch, resulting in inaccurate positioning. Gesture applications may be feasible, if the application of handwriting and pointers in the future, the control IC is the key; Second: due to the design of the system structure, the Coverlens become thicker, in principle, the problem will become increasingly serious. In addition, whether the module factory needs to contain customized Coverlens is also a major challenge in the industrial supply chain. Finally, when the panel is integrated into the LCD screen panel, it will also test the process capability, because the current panel bonding yield itself is only 80%-85%, and the other segment will inevitably make the yield lower. At present, the business model of upstream and downstream integration of the industry is also clear. In addition to the significant progress of the US businessmen Xinsi and Taiwanese business Shengda and Taiwanese business Yilong Electronics, others have not yet clearly defined specific plans.
V. Conclusion
As discussed above, the entire touch technology in the current industry chain can have the following conclusions:
(1) At present, the touch panel is still applied in a small size (especially multi-finger touch), and the projected capacitive panel potential will become the mainstream and gradually replace the resistive scheme.
(2) Demo is not equal to mass production. At present, it refers to the application solution. There are many demos but few mass producers, and there is still a considerable distance.
(3) Control the development energy of IC manufacturers themselves to determine the future/electronic/product usage scenarios.
(4) Select the panel technology is the most important amount of system manufacturers.
(5) The cooperation relationship with control IC manufacturers is critical to the survival of touch panel manufacturers.
(6) Although the difficulty is high, vertical integration is imperative.
Summarizing the touch panel technology, in terms of the technical cost and universal applicability of multi-finger touch, the current development of the projected capacitive type, but there are still many obstacles to overcome.
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