Haptic feedback actuator, haptic feedback device and electronic device
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsSeung Do An, Jong Hyeong Song, Jong Woo Han, Hae Seung Hyun
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Abstract
There is provided a haptic feedback actuator according to an exemplary embodiment of the present invention, including: a vibrating plate provided on one surface of a haptic device to transfer vibrations; and an actuator provided on the haptic device and including a composite layer in which a sensing electrode providing a sensing voltage Va based on a touch pressure of the haptic device and a driving electrode providing a driving voltage Vd corresponding to the sensing voltage Va are formed and a piezoelectric material generating vibrations according to the driving voltage Vd by being combined with one surface of the composite layer.
Claims16
A haptic feedback actuator, comprising:
- a vibrating plate provided on one surface of a haptic device to transfer vibrations;
- and
- an actuator provided on the haptic device and including a composite layer in which a sensing electrode providing a sensing voltage Va based on a touch pressure of the haptic device and a driving electrode providing a driving voltage Vd corresponding to the sensing voltage Va are formed and a piezoelectric material generating vibrations according to the driving voltage Vd by being combined with one surface of the composite layer,
- the sensing electrode and the driving electrode formed on the same layer, and
- in the composite layer, an area occupied by the sensing electrode being smaller than an area occupied by the driving electrode.
A haptic feedback device, comprising:
- a display panel provided to a haptic device requiring vibrations;
- an actuator including a composite layer in which a sensing electrode providing a sensing voltage Va based on a touch pressure of the display panel and a driving electrode providing a driving voltage Vd corresponding to the sensing voltage Va are formed and a piezoelectric material generating vibrations according to the driving voltage Vd by being combined with one surface of the composite layer;
- and
- a vibrating plate disposed between the display panel and the actuator to amplify vibrations generated in the actuator and transfer it to the display panel,
- the sensing electrode and the driving electrode formed on the same layer, and
- in the composite layer, an area occupied by the sensing electrode being smaller than an area occupied by the driving electrode.
An electronic device, comprising:
- a case formed in an inner space;
- a display panel disposed to be received in the case;
- an actuator including a composite layer in which a sensing electrode providing a sensing voltage Va based on a touch pressure of the display panel and a driving electrode providing a driving voltage Vd corresponding to the sensing voltage Va are formed and a piezoelectric material generating vibrations according to the driving voltage Vd by being combined with one surface of the composite layer;
- and
- a vibrating plate disposed between the display panel and the actuator to amplify vibrations generated in the actuator and transfer it to the display panel,
- the sensing electrode and the driving electrode formed on the same layer, and
- in the composite layer, an area occupied by the sensing electrode being smaller than an area occupied by the driving electrode.
Dependencies are inferred from the claim text.