How does surface capacitive touch technology drive a new revolution in human-machine interfaces? （1） 2

It is not difficult to see from the above that currently, the consumer market dominated by small sizes only has two choices for touch technology: resistive and projected capacitive. Although the former is low-cost, its poor optical performance and tolerance have long been criticized by the market; Although the latter has multiple advantages, there are only a few suppliers of real energy production, and the price is naturally quite expensive, so it is only seen in a few high priced products. diode

The reason why SCT is rarely used in the current small-sized market is mainly due to cost issues. SCT panel manufacturers have long lacked critical optical coating technology and must outsource processing, while SCT touch ICs are controlled by a few technology manufacturers and have high prices. In addition, unlike resistive screens that can be easily paired with resistive ICs, SCT screens and ICs must have excellent compatibility in order to work stably. The aforementioned factors make SCT's price for small-sized consumer applications not far from PCT, making it difficult for customer groups to adopt.  diode

However, compared to resistive technology, SCT can significantly improve its defects; Compared to PCT, SCT's technology is more mature and stable, and can be mass-produced and imported. Therefore, we can reasonably infer that when the overall cost of SCT decreases significantly due to strategic alliances and technological resource integration among industry members, SCT will have the opportunity to become the best solution for small-sized consumer applications.

The following text will briefly introduce the basic principles of PCT and SCT, and compare the advantages and disadvantages of these two technologies.