Tactile feedback device

Abstract

The invention discloses a tactile feedback device, which comprises a tactile feedback unit, an electric field control unit and a pressure generation unit, and the tactile feedback unit comprises a touch layer made of a flexible soft material film, a tactile feedback differential unit with a honeycomb-shaped through hole structure and a liquid cavity with a pressure delivery hole, the tactile layer, the tactile feedback differential unit and the liquid cavity form an integral structure with a closed cavity inside, the tactile feedback layer and the liquid cavity with the pressure conveying hole are respectively adhered to the upper surface and the lower surface of the tactile feedback differential unit in a sealing manner, an electrode is arranged on the side wall of a through hole of the tactile feedback differential unit, and electrorheological liquid is filled in the closed cavity. The pressure generating unit is in sealed connection with the tactile feedback unit through a pressure conveying hole, and the electric field control unit is connected with electrodes located in the tactile feedback differential unit. Multiple tactile feedback points can be driven to feed back simultaneously by using a single pressure source; through voltage control, operation is easy, the response speed is high, hardness and shape feedback can be achieved at the same time, and the feedback mode is rich and real.

Description

technical field [0001] The invention relates to the field of tactile feedback, in particular to a novel structure and control system for implementing hardness feedback and shape feedback through electric control. Background technique [0002] At present, the scene reconstruction of virtual reality and augmented reality mainly revolves around human visual and auditory senses, lacking information feedback and interaction in higher dimensions. The development of tactile feedback technology has built a bridge for the mechanical interaction between virtual objects and people, and is expected to become a key technological breakthrough in the development of virtual reality applications. [0003] Haptic feedback technology can optimize virtual reality experience and broaden the application field of virtual reality. Haptic feedback technology can allow users to interact more deeply with the virtual world, expand the perception dimension of virtual reality experience, obtain a strong...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a tactile feedback device that solves the shortcomings of existing tactile feedback devices, such as the lack of feedback authenticity and slow response time, and realizes the feedback of object force, hardness and shape when touching an object.

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