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What are the characteristics of capacitive touch screen (mobile phone class)

Release time:

2023/03/27 21:26

Touch chip, generally refers to touch chip, refers to single-point or multi-point touch technology, mainly used in smart phones, notebook computers, car displays and other applications of human-computer interaction in electronic products. Commonly used touch chip is the use of capacitive effect, by sensing current to touch, resistance is to touch by sensing pressure. Capacitive touch sensing technology has become the mainstream of touch sensing technology, therefore, capacitive touch chip has become the most concerned touch chip.

It is said that the dual-mode scheme of pressure touch and capacitive touch fusion is adopted, its high-sensitivity pressure detection is used to identify the pressing action, and the capacitive touch is used to locate the pressing position. The two are complementary, and the overall scheme has the comprehensive advantages of high reliability, low cost and simple application. At present, the major European and American suppliers of car regulation chips have the problems of price increase and shortage. The launch of this series of chips will provide a differentiated choice for car companies.

The cost is not high, the use of domestic manufacturers research and development of the car gauge pressure and capacitive touch two-in-one dual-mode chip, with the car gauge-level pressure touch film sensor, the overall cost and the traditional foreign brand pure capacitive touch chip price is equivalent, but the overall reliability and human-computer interaction experience to improve a lot. Has a very high price.

The car gauge touch scheme completely solves the old problem of poor waterproof performance of the traditional single capacitor touch door handle, and realizes the innovation and breakthrough of touch waterproof through the capacitive touch pressure sensing mode. The multi-key positioning on the metal surface based on the pressure sensing mode and the highly reliable touch patented technology make the metal surface touch keys that were previously very difficult to realize extremely simple. Zero gravity seats have gradually become standard for medium and high-end new energy vehicles, the relevant solution provider has developed a zero-gravity seat control panel based on the dual-gauge touch MCU. Up to 10 multi-channel pressure-sensitive capacitive touch buttons realize seat adjustment, thus realizing the perfect integration of scientific and technological sense and reliability.

The company's touch business is expected to grow at a high rate, benefiting from the large-scale production of folding-screen phones and the increased penetration of capacitive touch screens. The new touch materials developed by the company include flexible conductive films and touch modules, which have the advantages of low cost, no emissions, and are not easy to break, and can be used for the production of medium and large-size touch screens and flexible screens. At present, the large-scale mass production of folding screen mobile phones has led to an increase in the demand for flexible screens, and the application space of flexible conductive films is huge. With the increasing penetration of capacitive touch screens in the flat panel market, the company's touch capacitive screen technology has a bright future.

Strong versatility, can be used as a human-computer interaction platform-level car gauge chip selection, suitable for almost all human-computer interaction scenes in the car, whether it is single pressure, single capacitive touch or the fusion of the two scenes.

Capacitive touch screens are more common in products that everyone comes into contact with. For example, smart phones and tablet computers generally use capacitive touch technology. On conference tablets, capacitive touch can be directly operated by fingers, with more sensitive response and no need to worry about accidental touch. Fine writing and pressure feeling can be realized with active capacitive pens. Due to high cost, only some high-end conference tablets use capacitive touch technology. However, in large screens, capacitive touch screens are relatively few, the sensitivity of capacitive screens will decrease with the passage of time, and the maintenance cost is very high. It is often necessary to replace the whole screen when touch interaction is not possible or when the screen is abnormal. For infrared nano blackboards, the maintenance convenience is more convenient and the cost is lower.

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