The invention relates to a three-dimensional
haptic rendering device and a method based on plane interaction, belonging to the field of human-computer interaction. The device includes a positioning unit, a
processing unit, a
signal generator and an interaction unit, which can obtain the gray value and calculate the change rate of the corresponding gray value according to the position information of the finger on the image in real time, and further provide the
tangential force by vibration, and provide the
normal force by electrostatic force or air pressure film, and present the contour information by the three-dimensional haptic
reproduction method based on the plane interaction. The advantages are: the portability of the device is good, at the same time, a
tangential force and a
normal force can be simultaneously applied to the finger, the feedback force is expanded from one dimension to two dimensions breaks through the restriction that electrostatic force only has feedback functionin the process of motion, the device and method realize the two-way width adjustment that the
tangential force can be increased or decreased, and have more real three-dimensional haptic
reproduction effect, which can be widely used in the field of human-computer interaction.