Samsung Electro-mechanics Co., Ltd.

Mplus Co., Ltd.

Dong Sun Park

Jae Kyung Kim

Yeon Ho Son

Dae Woong Yun

Kum Kyung Lee

Ki Suk Woo

Ji Yeoun Jang

Joon Choi

Su Young Jung

Jung Hyun Park

Jong Hyuck Hong

Dong Woohn Kim

Chang Soo Kim

Embodiments of the invention provide a piezoelectric vibration module, including a vibration plate mounted with a piezoelectric element, which generates a vibration force in a vertical direction by being repeatedly expanded and contracted depending on external power applied thereto, and a lower case coupled with both ends of the vibration plate so as to be spaced apart from the vibration plate. The piezoelectric vibration module further includes a bar-shaped weight body increasing the vibration force of the piezoelectric element, and an elastic member interposed between the vibration plate and the weight body.

Piezoelectric vibration module

There is provided a vibration generating apparatus including: a housing having an internal space; a vibrator disposed and vibrating within the housing; and a plurality of damper members installed in at least one of the housing and the vibrator and formed of different materials, wherein the plurality of damper members are overlapped and formed integrally with each other or are disposed to be adjacent to each other.

Vibration generating apparatus

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 stopper capable of preventing direct collision between a piezoelectric element and an internal constituent member, for example, a lower case while vibrating linearly therein.

Disclosed herein is a piezoelectric vibration module including: a piezoelectric element repeatedly extended and compressed according to application of external power to generate vibration force; a vibration plate having the piezoelectric element coupled to one surface thereof and repeatedly extended and compressed integrally with the piezoelectric element to transfer the vibration force of the piezoelectric element to an external component; a weight body having a central portion coupled to the other side of the vibration plate in order to increase the vibration force of the piezoelectric element; and a coupling member fixedly coupling the central portion of the weight body and the vibration plate to each other.

Disclosed herein is a piezoelectric vibration module that includes a side damper between a vibration plate with a piezoelectric element and an upper case so as to ensure reliability against external shock applied to the side and narrows a spaced distance between the vibration plate and the upper case.

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.

Disclosed are a vibration generator, which can increase the vibration force of a vibration plate by additionally applying the mass of a mass body to the vibration plate, and an electronic device including the same. The vibration generator includes at least one piezoelectric element mounted inside the case and subjected to compression and expansion in response to input power, a vibration plate including a body elongated in a preset lengthwise direction and having the at least one piezoelectric element mounted thereon, and generating vibrations by the compression and expansion of the at least one piezoelectric element, and at least one mass part adding a preset magnitude of mass to the vibration plate.

Vibration generator and electronic device including the same

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

Disclosed herein is a support structure of a touch panel. According to the present invention, by implementing a touch panel support structure having the maximum resistance to vibration and warpage transferred to the touch panel by a vibration generating device, it is possible to uniformize a vibration width by minimizing a deviation of vibration displacement for each position of a touch panel and it is possible to safely protect the touch panel by effectively absorbing external shock through a cushion operation of a buffering member.

Support structure of touch panel

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. The piezoelectric actuator includes a piezoelectric element generating vibrations by repetitively expanding and restoring according to power applied from the outside to be linearly driven; a support member contacts the piezoelectric element in order to support the piezoelectric element; and vibration control members attached to one surface of and the support member and the piezoelectric element.

Piezoelectric actuator

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.

Growing community of inventors

Gyunggi-do, South Korea

Dong Sun Park