This is a new device for the realization of revolutionary user interfaces such as smartphones, computers, and car navigation systems
Touch feedback technology is a technology that uses different tactile sensations such as force, vibration, follow-up, heat, and static electricity to bring skin sensory feedback to users.
In general, in touch screens installed in smartphones and other devices, even if you press the button that appears on the screen, there is no feeling of "pressing down". Therefore, it is difficult to distinguish between "pressed" and "not pressed" in practice, but if you use touch feedback technology on the touch screen, this problem can be easily solved.
If you make the screen vibrate when you touch it, the user will know that it's tapped. Depending on the position clicked, the vibration is given in a different way, and the button can also be recognized. There are even studies that are feasible to identify more complex tactile sensations based on the way vibrations are given.
Making full use of the touch feedback technology allows users to experience the "press" sensation on the touch screen, which improves the sense of operation. In addition, the latest technology can be used to reproduce the feeling of clicks and uneven textures The lateral force (horizontal force) phenomenon is one of the haptic feedback phenomena that Japan Densho Kobo Co., Ltd. is concerned about. It is through the human skin from the tactile sense of the horizontal vibration recognition, so that the horizontal vibration changes, so that the human skin to the reality of the plane recognition as convex or concave.
If you make full use of this phenomenon, it can be used as a variety of user interfaces. Although it is flat, it has the feeling of clicking like pressing a physical button, and even allows the skin to freely recognize various unevenness and smoothness of the surface.
A haptic feedback device that takes advantage of this illusion has been put into practical use, and some products are already equipped with this device.
By making the vibration change in the horizontal direction, the concave and convex surfaces can be felt by the human fingertips, even though they are actually flat. It also allows users to experience the click-through sensation when the button is pressed Conventional smartphones and other devices were equipped with rotary motors with eccentric wheels and vertical linear drives, but it was impossible for rotary motors and vertical linear drives to effectively generate lateral forces, which means that they could not produce horizontal follow-up phenomena that give the impression of human skin.
In order to create various illusions based on the phenomenon of lateral forces, it is necessary to control the starting speed, vibration amplitude, and vibration frequency more precisely, and the horizontal linear vibrator is the most suitable device at this stage.
Currently, Japan Denco Cobb Co., Ltd. is working on the development of horizontal linear drives. Horizontal linear actuators have been mass-produced in the past, but in order to be the best haptic feedback device, they need to be further refined before they can be put on the market.
A horizontal linear actuator that generates horizontal vibrations that cause lateral force phenomena.
As a haptic feedback device, it has huge advantages
Instructions from R&D personnel
By using a horizontal linear actuator, a touch feedback function that takes advantage of the lateral force phenomenon can be installed in all products. It can be installed not only on mobile devices such as smartphones and tablets, but also on ATMs and car navigation systems of financial institutions. If it is installed on an ATM, it can be operated by people with visual impairments. If it is mounted on a car navigation system, you can check the operation of the navigation system without staring at the display screen while driving. Haptic feedback devices have unlimited potential and have been widely used.
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