Samsung Electro-mechanics Co., Ltd.

Dae Woong Yun

Jae Kyung Kim

Yeon Ho Son

Dong Sun Park

Kum Kyung Lee

Ki Suk Woo

Ji Yeoun Jang

Su Young Jung

Joon Choi

Chang Soo Kim

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.

Haptic feedback device and portable electronic device

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.

Piezoelectric vibration module

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.

Haptic feedback device and electronic device

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.

Haptic feedback device

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.

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.

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.

Piezoelectric actuator module

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.

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Incheon, South Korea

Dae Woong Yun