Abstract: There is provided a haptic feedback device. The haptic feedback device may include a case, a vibration member installed in the case, to vibrate, a vibration element formed in the vibration member, to generate vibrations, and a first impact absorbing member preventing a collision between the vibration member and the case.

Abstract: Disclosed herein is a piezoelectric vibration module including a vibration plate that is surrounded by an upper case and a lower case, and includes a first stopper capable of preventing direct collision between a piezoelectric element and an internal constituent member, for example, an upper plate while vibrating linearly therein. In particular, the piezoelectric vibration module may further include a second stopper in the lower case.

Abstract: There is provided a lightweight, slim and compact haptic feedback device due to an actuator module constituted of a piezoelectric element and a vibration plate, and an electronic device having the same. The haptic feedback device includes a haptic device receiving contact pressure applied thereto, and an actuator module being in contact with a lower surface of the haptic device and excited according to variations in contact pressure with the haptic device to thereby generate vibrations.

Abstract: There is provided a haptic feedback device. The haptic feedback device includes a vibration member; a vibration element formed on the vibration member to vibrate the vibration member; and a mass member formed on the vibration member to adjust a oscillation frequency of the vibration member, wherein one surface of the mass member facing the vibration member is formed to have a curved shape.

Abstract: There is provided a haptic feedback device, including: a vibrating member coupled to a fixed body; and a vibrating element formed on the vibrating member to vibrate the vibrating member, wherein the vibrating member has a plurality of fixed points coupled to the fixed body while allowing a length thereof, vibrated by the vibrating element, to be changed.

Abstract: A haptic feedback device includes: a haptic device receiving a contact pressure applied thereto; and an actuator provided to the haptic device and excited according to a change in the contact pressure of the haptic device to generate vibrations.

Abstract: Disclosed herein is a piezoelectric vibration module including a vibration plate that is surrounded by an upper case and a lower case, and includes a first stopper capable of preventing direct collision between a piezoelectric element and an internal constituent member, for example, an upper plate while vibrating linearly therein. In particular, the piezoelectric vibration module may further include a second stopper in the lower case.

Abstract: Disclosed herein is a piezoelectric actuator module. The piezoelectric actuator module includes a flat plate, two or more elastic members, and a piezoelectric element. The elastic members are provided on each of opposite ends of the plate in a longitudinal direction thereof and protrude perpendicularly from the plate in such a way that a first end of each of the elastic members is coupled to an electronic device. The piezoelectric element is provided on a first surface of the plate and transmits vibrating force to the electronic device. The piezoelectric actuator module includes a plate having on opposite ends thereof two or more elastic members, thus being capable of controlling vibrating force by changing the length of the plate and the number of the elastic members, in addition to reliably supporting piezoelectric elements provided on the plate.

Abstract: A vibration actuator module is disclosed. In accordance with an embodiment of the present invention, the vibration actuator module includes a vibrated body, a vibrating plate, which is coupled to the vibrated body and has a smaller elastic modulus than the vibrated body, and a driver, which is coupled to the vibrating plate.

Abstract: There is provided a haptic feedback device. The haptic feedback device may include a case, a vibration member installed in the case, to vibrate, a vibration element formed in the vibration member, to generate vibrations, and a first impact absorbing member preventing a collision between the vibration member and the case.

Abstract: Disclosed herein is a piezoelectric actuator module. The piezoelectric actuator module includes a flat plate. An elastic member is provided on each of opposite ends of the plate in a longitudinal direction thereof, and protrudes perpendicularly from the plate in such a way that a first end of the elastic member is coupled to an electronic device. A plate-shaped elastic body is provided on a first surface of the plate. A piezoelectric element is provided on a first surface of the elastic body. The plate-shaped elastic body is provided between the plate and the piezoelectric element, so that the overall spring constant of the piezoelectric actuator module is lowered and thus the vibrating force of the piezoelectric actuator module is increased.

Abstract: Disclosed herein is a touch screen device, including: a case that partitions an internal space, a touch panel module that is received in the case to recognize external pressure, a first actuator that is mounted at the lower part of the touch panel module to generate vibration, a second actuator that is mounted at the case to generate vibration, and a coupling member that is provided between the case and the touch panel module, wherein the vibration direction of the first actuator is different from that of the second actuator.

Abstract: There is provided an actuator module, a haptic feedback device, and an electronic device having the same. The haptic feedback device includes a haptic device receiving a user contact applied thereto, and an actuator module generating vibrations according to the user contact applied to the haptic device.

Abstract: There is provided a lightweight, slim and compact haptic feedback device due to an actuator module constituted of a piezoelectric element and a vibration plate, and an electronic device having the same. The haptic feedback device includes a haptic device receiving contact pressure applied thereto, and an actuator module being in contact with a lower surface of the haptic device and excited according to variations in contact pressure with the haptic device to thereby generate vibrations.

Abstract: Disclosed are a haptic feedback device and an electronic device. The haptic feedback device includes: a haptic device to which contact pressure is applied; an actuator provided in the haptic device and excited according to a change in the contact pressure of the haptic device to generate vibrations; and a controller controlling the actuator to vibrate at a pre-set resonance frequency in a pre-set first operation mode and vibrate at a driving frequency different from the resonance frequency in a second operation mode set to be different from the first operation mode.

Abstract: Disclosed herein is a piezoelectric actuator module. The piezoelectric actuator module includes a flat plate. An elastic member is provided on each of opposite ends of the plate in a longitudinal direction thereof, and protrudes perpendicularly from the plate in such a way that a first end of the elastic member is coupled to an electronic device. A plate-shaped elastic body is provided on a first surface of the plate. A piezoelectric element is provided on a first surface of the elastic body. The plate-shaped elastic body is provided between the plate and the piezoelectric element, so that the overall spring constant of the piezoelectric actuator module is lowered and thus the vibrating force of the piezoelectric actuator module is increased.

Abstract: Disclosed herein is a piezoelectric actuator module. The piezoelectric actuator module includes a flat plate, two or more elastic members, and a piezoelectric element. The elastic members are provided on each of opposite ends of the plate in a longitudinal direction thereof and protrude perpendicularly from the plate in such a way that a first end of each of the elastic members is coupled to an electronic device. The piezoelectric element is provided on a first surface of the plate and transmits vibrating force to the electronic device. The piezoelectric actuator module includes a plate having on opposite ends thereof two or more elastic members, thus being capable of controlling vibrating force by changing the length of the plate and the number of the elastic members, in addition to reliably supporting piezoelectric elements provided on the plate.

Abstract: Disclosed herein is a piezoelectric actuator for actuating a haptic device, which includes a piezoelectric element having a plurality of piezoelectric layers which are stacked and have the same polling direction, and an electrode pattern formed on the piezoelectric element, in which the length of each of the plurality of piezoelectric layers is greater than or equal to four times the width of each of the plurality of piezoelectric layers, and the width of each of the plurality of piezoelectric layers is greater than or equal to ten times the thickness of each of the plurality of piezoelectric layers, so that the piezoelectric actuator can greatly vibrate in the direction of length with reduced power consumption.

Abstract: Disclosed herein is an actuator module that improves vibration of a touch screen pad. More specifically, the actuator module is configured to include a plate that is positioned at the lower part of a touch display module in which an image display unit is coupled to the lower part of a touch screen panel, a vibration generator that is positioned at the lower part of the plate and is mechanically deformed by compression or contraction when voltage is applied, and an adhesive layer that bonds the touch display module to the plate and the plate to the vibration generator and generates bending moment by the mechanical deformation of the vibration generator, thereby making it possible to transfer the vibration by the vibration generator directly to the touch screen panel and be designed in an ultra-thin type.

Abstract: A vibration actuator module is disclosed. In accordance with an embodiment of the present invention, the vibration actuator module includes a vibrated body, a vibrating plate, which is coupled to the vibrated body and has a smaller elastic modulus than the vibrated body, and a driver, which is coupled to the vibrating plate.