In the past two years, the intelligent terminal market has secretly set off the black technology competition of "disappearing control keys". Xiaomi, VIVO, Lenovo, Asus have to invest in it, so that the competition upgraded to the level of technological innovation.
"At any cost, regardless of return, do not consider the mass production of" millet MIX concept mobile phone is one of the "best". It is equipped with a 7.92-inch wrap-around screen, completely free from the constraints of physical control keys, creating a fantastic visual aesthetic.
The same control key "disappears", VIVO NEX 3S hidden button design, the achievement of integrated simple screen, with the X-axis linear motor, simulating the real touch of the key, vibration dry and sharp.
Compared to audio-visual technology, haptic technology is more demanding in terms of time and requires continuous data transformation. How can the "disappearing keys" achieve high reach under the conditions of time and data processing? Today, let's "open the box" and unveil its mysterious veil.
Haptic feedback technology
In the field of industrial manufacturing, the sense of touch has a broad and narrow sense, the broad sense of touch, including touch, pressure, force, slippery, hot and cold, etc.; narrow sense of touch refers to the manipulator and the object on the contact surface of the force feeling. Haptic feedback technology can reproduce the sense of touch for the user through a series of actions such as force and vibration. This mechanical stimulation can be applied to computer simulation in the virtual scene or virtual objects to assist the creation and control, as well as to enhance the remote control of machinery and equipment.
On the market, most of the intelligent terminals to achieve tactile feedback function does not rely on a single component, but a number of components linked to achieve. For example, in the aforementioned VIVO NEX 3S, the hidden buttons are responsible for sensing external forces, and the X-axis linear motor simulates the real touch of the buttons to achieve vibration feedback.
Piezoelectric converter
In order to enhance the user experience through the "disappearing buttons", you need to find the right force tactile sensors. Currently, the main types of force tactile sensors are: piezoresistive tactile sensors, piezoelectric transducers, capacitive tactile sensors, and magneto-conductive tactile sensors.
Among them, the piezoelectric conversion element is a typical force-sensitive element with the important characteristic of reversibility of spontaneous charge, as well as small size, light weight, simple structure, reliable operation, high intrinsic frequency, high sensitivity and signal-to-noise ratio, and stable performance. In terms of cost-effectiveness, piezoelectric conversion elements are most suitable for application in current smart terminal products such as mobile phones and wearable.
Piezoelectric touch buttons applied to smart terminals are different from ordinary physical buttons, which provide more possibilities for the application experience.
Multi-dimensionality
In addition to ordinary pressing and non-pressing, the touch key scheme can identify the strength of pressing, and the recognition sensitivity is very high, the pressure sensitivity can reach milligram level, and different triggerable squeezing strengths can be set according to different application scenarios.
Multi-touch recognition
Touch buttons can recognise large area touches rather than just a single point, which leads to more control methods, such as volume adjustment by swiping.
Software definability
The function and strength of the buttons can be customised through software to suit different users' habits.
Audiowell Tactile Sensor
Audiowell's self-developed tactile sensors are operational interaction sensors that belong to the piezoelectric transducer category and have a wide range of applications. They can be used in touch panels for virtual key displays and physical switch buttons, as well as in smartphones and smart wearable devices.
- Achieve advanced seamless design
- Easier to protect against dust/water
- Longer life and better experience
Audiowell understands that for the increasingly rational and mature smart terminal users, once they have felt the top touch interaction that is smoother and more fluid, they will never be able to tolerate anything else. Therefore, the company adheres to the concept of "sensing technology creates intelligent life", always gives priority to customer needs and end-user experience, and insists on manufacturing high-quality products by virtue of more than 20 years of R & D and production experience accumulated in the sensor industry.
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