KR101025996B1 - Haptic feedback device of personal portable device - Google Patents

Abstract

PURPOSE: A haptic feedback device of a personal portable device is provided to check an adhesion spraying position by placing a vibrating plate to a bonding part of an actuator. CONSTITUTION: A display panel displays an image. According to the contact signal of the display panel, an actuator(120) generates vibration. A vibration transmission plate(130) is placed in between the display panel and the actuator. The vibration transmission plate transfers the vibration of the actuator to the display panel. In the vibration transfer plate, a bond filling groove(134) is formed in the adhesive part of the actuator. Adhesive(10) is sprayed to a bond filling groove. The bond filling groove offers a flow space of adhesive.

Description

Haptic feedback device of personal portable device

The present invention relates to a haptic feedback device of a personal handheld terminal, and more particularly, to a haptic feedback device in which a vibration transmission plate is formed between a display panel and an actuator.

Recently, the use of a touch type device that touches and inputs an electronic product according to a user's demand for easy use of an electronic product is becoming common.

Currently, the haptic feedback device includes not only the concept of touch input, but also a concept of reflecting the user's intuitive experience on the interface and diversifying the feedback.

In this case, the haptic feedback device has a number of advantages such as space saving, improved operability and simplicity, easy specification change, and high user recognition.

Due to these advantages, they are widely used in various fields such as industry, transportation, service, medical care, and mobile.

In general, the haptic feedback device is to mount the actuator adjacent to the display panel in order to increase the feedback effect to the user, the cost cost increase and the internal space of the internal space to increase the vibration force to increase the vibration force itself Many problems, such as constraints, are occurring.

In addition, in the process of adhering the actuator to the display panel, an adhesive is mainly used, and a problem in the process in which the adhesive overflows and adheres to an adjacent actuator often occurs. Therefore, there is a need for techniques to solve this problem.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and an object thereof is to attach an actuator directly to a display panel, and to prevent the adhesive from flowing to other parts when the actuator is bonded with the adhesive, the haptic feedback To provide a device.

The haptic feedback device according to the present invention comprises a display panel disposed in the internal space of the personal portable terminal to provide an image; An actuator generating vibration in response to a contact signal of the display panel; And a vibration transmission plate interposed between the display panel and the actuator to transmit the vibration generated by the actuator to the display panel, and a bond filling groove formed at a portion to which the actuator is bonded.

In addition, the vibration transmission plate of the haptic feedback device according to the present invention may be characterized in that the two actuators are mounted side by side, a slit groove is formed between the actuators.

In addition, the bond filling groove of the haptic feedback device according to the present invention may be formed to be wider than the width of the actuator.

In addition, the vibration transmission plate of the haptic feedback device according to the present invention may be characterized in that it is bonded along both corners of the display panel.

In addition, the vibration transmission plate of the haptic feedback device according to the invention may be characterized in that the injection molded integrally formed to be bonded along the four corners of the display panel.

In addition, the actuator of the haptic feedback device according to the invention may be characterized in that the piezoelectric or polymer or motor.

The haptic feedback device according to the present invention includes a vibration transmission plate in which a bond filling groove is formed at a portion to which the actuator is bonded, so that the application position of the adhesive can be accurately confirmed, and the adhesive can be prevented from overflowing when the actuator is attached. It works.

In addition, the haptic feedback device according to the present invention has an effect that can maximize the vibration because the actuator is bonded to the vibration transmission plate to switch the vibration direction of the actuator in the longitudinal direction when the voltage is applied.

The haptic feedback device according to the present invention will be described in more detail with reference to FIGS. 1 to 5. Hereinafter, with reference to the drawings will be described in detail a specific embodiment of the present invention.

However, the spirit of the present invention is not limited to the embodiments presented, and those skilled in the art who understand the spirit of the present invention may deteriorate other inventions by adding, changing, or deleting other elements within the scope of the same idea. Other embodiments that fall within the scope of the present invention may be easily proposed, but this will also be included within the scope of the present invention.

In addition, components having the same functions within the same or similar scope shown in the drawings of each embodiment will be described using the same or similar reference numerals.

1 is a perspective view illustrating a haptic feedback device according to an embodiment of the present invention, Figure 2 is a bottom view for explaining the bottom of the haptic feedback device of FIG.

1 and 2, the haptic feedback device 100 may include a display panel 110, an actuator 120, and a vibration transmission plate 130.

The display panel 110 may include a touch screen panel 112 and an image display unit.

Here, the touch screen panel formed on the outer surface is formed by laminating an outer film layer, an ITO film layer and a base film layer.

The external film layer may be mounted on the front surface of the personal mobile terminal, and may be divided into a display area capable of touch input and a space area formed around the display area.

On the other hand, the outer film layer may be made of a transparent film material such as, for example, poly ethylene terephtalate (PET) so as to see through the screen of the image display unit.

Although not shown in detail, an ITO film layer (Indium Tin Oxide film) is provided by laminating the upper and lower two film layers, and a spacer may be provided between them to maintain a constant gap therebetween.

The base film layer serves to support the entire touch panel. For example, a glass substrate having excellent transmittance and touch response speed may be used.

Then, the image display unit is disposed on the bottom of the touch screen panel, and emits light so as to provide the front of the personal mobile terminal. In this case, the image display unit may selectively use one of a liquid crystal display (LCD), a plasma display panel (PDP), and an electrolumine scenece (EL).

In this case, the vibration transmission plate 130 may be attached to the bottom surface of the display panel 110.

Here, the vibration transmission plate 130 may be formed to be located on the bottom surface of the touch screen panel, the position is not limited thereto, and the bottom of the image display unit or the touch screen panel and the image display unit are accommodated therein according to a designer's intention. It may be formed to be located on the bottom of the chassis.

Here, the actuator 120 may be a vibration means using a piezoelectric body, it may be formed long in the longitudinal direction along the vibration transmission plate 130. Therefore, the expansion and contraction oscillation from side to side by the polarization direction according to the voltage applied.

 However, the material of the actuator 120 is not limited thereto, and may be selectively used among piezoelectrics, polymers, or motors.

In addition, since the actuator 120 is adhered to one surface of the vibration transmission plate 130, the vibration may be directly transmitted to the vibration transmission plate 130.

Here, since the actuator 120 is stretched in the longitudinal direction, but the vibration transmission plate 130 is made of a material that does not cause a change in length, the actuator 120 is not vibrated in the stretched direction but is vibrated in the vertical direction of the actuator 120. Can be done.

Therefore, as the actuator 120 vibrates in the vertical direction, a vibration force greater than that vibrating in the longitudinal direction may be transmitted to the display panel 110.

Accordingly, in the haptic feedback device according to the present embodiment, the actuator 120 is adhered to the vibration transmission plate 130 to convert the vibration direction of the actuator 120 in the longitudinal direction when voltage is applied, thereby maximizing the vibration. It works.

3 and 4 are schematic cross-sectional views for explaining a process of bonding the actuator on the vibration transmission plate in the haptic feedback device according to an embodiment of the present invention.

3 and 4, a slit 132 may be provided at an intermediate portion of the vibration transmission plate 130.

Therefore, the vibration force of the actuators 120 connected to the vibration transmission plate 130 is not transmitted to each other by the slit 132 structure.

In addition, the vibration transmission plate 130 may be provided with a bond filling groove 134 for applying the adhesive to the adhesive position of the actuator 120.

Here, an adhesive 10 is applied to the bond filling groove 134, and the actuator 120 is pressed to the bond filling groove 134 to be bonded (arrow).

At this time, in general, the adhesive 10 moves to the slit 132 while overflowing the upper portion as the actuator 120 is pressed. Therefore, the bond filling groove 134 is formed to be wider than the width of the actuator 120 to provide a space in which the adhesive 10 can flow.

Here, when the adhesive 10 is moved to the slit 132, the separated portions of the vibration transmission plate 130 are bonded to each other, the vibration force affects each other when the actuator 120 vibrates There is this.

However, the haptic feedback device according to the present embodiment prevents the adhesive 10 from flowing to the outside by the U-shaped bond filling groove 134 formed in the vibration transmission plate 130, thereby preventing the above problem. have.

5 is a bottom view for explaining a bottom of a haptic feedback device according to another embodiment of the present invention.

Referring to FIG. 5, the haptic feedback device 200 may include a display panel, an actuator 220, and a vibration transmitting plate 230.

Since the display panel according to the present exemplary embodiment has substantially the same configuration as the foregoing exemplary embodiment, a detailed description thereof may be omitted.

In addition, the vibration transmission plate 230 may be separately formed so as to be located at both sides of the display panel, the actuator 220 may be formed to be bonded to each plate 230. Therefore, each vibration transmitting plate 230 may be fixed to both sides of the display panel by bonding.

At this time, each of the vibration transmission plate 230 may be provided with a bond filling groove 232, the adhesive filling may be applied to each bond filling groove. In addition, the present embodiment has an effect that the adhesive can be prevented from flowing outward when the actuator 220 is pressed to mount the actuator 220 on the bond filling groove.

1 is a perspective view illustrating a haptic feedback device according to an embodiment of the present invention.

FIG. 2 is a bottom view illustrating the bottom of the haptic feedback device of FIG. 1.

3 and 4 are schematic cross-sectional views for explaining a process of bonding the actuator on the vibration transmission plate in the haptic feedback device according to an embodiment of the present invention.

5 is a bottom view for explaining a bottom of a haptic feedback device according to another embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

110 ... display panel 112 ... touch screen panel

120 .... Actuator 130 .... Vibration Transfer Plate

132 .... slit 134 ... bond bonding groove

10 .... glue

Claims (6)

A display panel disposed in an internal space of the personal portable terminal and providing an image; An actuator generating vibration in response to a contact signal of the display panel; And A vibration transmission plate interposed between the display panel and the actuator to transmit the vibration generated by the actuator to the display panel, and a bond filling groove formed at a portion to which the actuator is bonded; Haptic feedback device comprising a. The method of claim 1, Two actuators are mounted side by side on the vibration transmission plate, and a slit groove is formed between the actuators. The method of claim 1, The bond filling groove, Haptic feedback device, characterized in that formed wider than the width of the actuator. The method of claim 1, The vibration transmission plate, A haptic feedback device, characterized in that bonded along both corners of the display panel. The method of claim 1, The vibration transmission plate, The haptic feedback device, characterized in that the injection molded integrally formed along the four corners of the display panel. The method of claim 1, The actuator is a haptic feedback device, characterized in that the piezoelectric or polymer or motor.

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