Haptic feedback case for electronic equipment

Disclosed is a haptic feedback case for electronic equipment, including: a main body configured to accommodate the electronic equipment; a communication unit configured to receive haptic generation information from the electronic equipment; a filmy type actuator configured to generate haptic sensations; and a control unit configured to operate the film type actuator according to the haptic generation information input from the communication unit.

CROSS-REFERENCES TO RELATED APPLICATIONS

The present application claims priority under 35 U.S.C 119(a) to Korean Application No. 10-2010-0131872, filed on Dec. 21, 2010, and Korean Application No. 10-2011-0134116, filed on Dec. 14, 2011 in the Korean Intellectual Property Office, which is incorporated herein by reference in its entirety set forth in full.

BACKGROUND

Exemplary embodiments of the present invention relate to a haptic feedback case for electronic equipment, and more particularly, to a haptic feedback case for electronic equipment interworking with a haptic generator including a film type actuator to provide haptic sensation in the case for electronic equipment.

With the rapid development of communication technologies and manufacturing technologies in mobile handsets, memory capacity or performance of a display device has been more swiftly developed than before, such that portable terminals can implement various multimedia functions such as moving picture viewing, MP3 playing, Internet, or the like, in addition to wireless communication functions.

In addition, the portable terminals are installed with a variety of online Internet games or embedded games that can be enjoyed by users regardless of place. Therefore, the portable terminals have mainly used a ‘touch screen’ as an input device that can provide an input from applications without a separate keyboard.

The touch screen provides an interface that enables a user to input commands or information to a terminal by touching the icons displayed on a screen using fingers, a stylus, a pen, or the like.

Therefore, when a user wants to speak to a person over the portable terminal, he/she touches the corresponding icons displayed on the touch screen of the display unit using a stylus pen or fingers, to press a telephone number key, a call key, or the like, thereby attempting to dial a call.

Most generally, the user touches a touch screen with his/her fingertips and moves his/her fingers on the touch screen to move a cursor displayed in a graphical environment. In addition, the user can operate the stylus in connection with the touch screen by pressing a stylus tip on the touch screen and moving the stylus.

Background Art of the present invention is disclosed in the Korean Laid-Open Patent 10-2009-0020037 (Feb. 26, 2009) entitled “an apparatus and a method for controlling vibrations of a portable terminal”.

As described above, various effects can be provided to a user by providing not only an output of a speaker but also a haptic sensation, when a touch is made through a touch screen or various events in a game are generated.

In recent years, as the size and weight of the portable terminals are reduced, it is difficult to transfer more realistic feeling only by a vibration motor embedded in the portable terminal.

Further, the terminal that does not provide the haptic sensation according to various events cannot be provided with various effects.

SUMMARY

An embodiment of the present invention relates to a haptic feedback case for electronic equipment interworking with electronic equipment to provide haptic sensation through a haptic generator including a film type actuator in the case for electronic equipment.

Another embodiment of the present invention relates to a haptic feedback case for electronic equipment including: a main body configured to accommodate the electronic equipment; a communication unit configured to receive haptic generation information from the electronic equipment; a film type actuator configured to generate haptic sensations; and a control unit configured to operate the film type actuator according to the haptic generation information input from the communication unit.

The main body may further include a connector that is connected to the electric equipment to receive power and the haptic generation information.

The main body may further include the connector that is connected to the electronic equipment to receive power.

The communication unit may receive haptic generation information from the electronic equipment by short range wireless communication.

The haptic feedback case for electronic equipment may further include a power supply device configured to supply the power through the connector to the control unit.

The power supply device may be a battery.

The haptic generation information may include a click event, a menu event, a next-page event, a lock-page event, a text-highlight event, a music event, and a GUI (Graphic User Interface) operation event in the electronic equipment.

The film type actuator may include: a fixing member attached to a bottom surface of the main body; a film type flexible part attached to the fixing member and having the length expanded and contracted according to an operating signal of the control unit; and a haptic generation member contacting the film type flexible part to output a movement of the film type flexible part as haptic sensations.

One side of the haptic generation member may be further provided with a haptic augmented member.

The fixing member may be an elastic material.

The elastic material may be conductive.

The film type flexible part may be made of electro active polymer, electro active cellulose, and shape memory alloy.

The film type flexible part may be arranged in plurality so as to be parallel with each other.

The film type flexible part and the haptic generation member may partially contact each other.

The communication unit, the film type actuator, and the control unit may be buried in the bottom surface of the main body.

DESCRIPTION OF SPECIFIC EMBODIMENTS

A haptic feedback case for electronic equipment in accordance with exemplary embodiments of the present invention will be described with reference to the accompanying drawings. In describing the embodiment, a thickness of lines illustrated in the drawings, a size of components, etc., may be exaggeratedly illustrated for clearness and convenience of explanation. In addition, terms described to be below are terms defined in consideration of functions in the present invention, which may be changed according to the intention or practice of a user or an operator. Therefore, these terms will be defined based on contents throughout the specification.

Hereinafter, embodiments of the present invention will be described with reference to accompanying drawings. However, the embodiments are for illustrative purposes only and are not intended to limit the scope of the invention.

FIG. 1is a block configuration diagram illustrating a haptic feedback case for electronic equipment in accordance with an embodiment of the present invention,FIG. 2is a diagram for describing a use state of the haptic feedback case for electronic equipment in accordance with the embodiment of the present invention, andFIG. 3is a cross-sectional view taken along line A-A′ of the haptic feedback case for electronic equipment in accordance with the embodiment of the present invention.

As illustrated inFIGS. 1 and 2, the haptic feedback case for electronic equipment in accordance with the embodiment of the present invention includes a main body100, a communication unit10, a film type actuator30, and a control unit20, and a connector50.

The main body100is configured to receive electronic equipment200, that is, a mobile phone. Therefore, the main body100is configured to protect the electronic equipment200from external impact without problems while the electronic equipment200used in the state in which the electronic equipment is inserted into the main body100.

The communication unit10receives haptic generation information from the electronic equipment200.

In this case, the communication unit10may also be connected with the electronic equipment200in a wired manner to receive the haptic generation information. Further, the communication unit10may also receive the haptic generation information through short distance radio communication such as Bluetooth, WiFi, or the like.

The haptic generation information that includes event signals, such as a click event, a menu event, a next-page event, a lock-page event, a text-highlight event, a music event, a GUI (Graphic User Interface) operation event, or the like, generating various effects in the electronic equipment200, is provided to a user through haptic sensation.

The film type actuator30generates vibrations, such that the user of the electronic equipment200can feel the haptic sensation through haptic sensations.

The control unit20operates the film type actuator30according to the haptic generation information input from the communication unit10.

Further, in the embodiment of the present invention, when the main body100includes the connector50to allow the communication unit10to support wired communication, the main body100receives power from the electronic equipment200through the connector50and receives the haptic generation information.

However, when the communication unit10supports wireless communication, the main body100may receive power from only the electronic equipment through the connector50.

Further, the embodiment of the present invention can include a power supply device40to charge power supplied from the electronic equipment200and supply power to the control unit20, such that the main body100receives the haptic generation information to generate haptic sensations even though the main body100is not connected to the electronic equipment200through the connector when the communication unit10supports the wireless communication. Here, the power supply device40may be a battery.

Describing in more detail the configuration of the film type actuator30in accordance with the embodiment of the present invention, the film type actuator30may be extensively formed on the bottom portion of the main body100as illustrated inFIG. 3.

FIG. 3is a cross-sectional view of line A-A′ ofFIG. 2, wherein the film-type actuator30is formed in a buried hole110on the bottom portion of the main body100.

In the embodiment of the present invention, the film-type actuator30, the communication unit10, the control20, and the power supply device40may also be formed in the buried hole100on the main body100.

That is, when a part thickness of the film type actuator30, the communication unit10, the power supply device40, and the control unit20may be set to be 0.3 to 0.5 mm, the thickness of the main body100may be maintained at about 1.5 to 2.5 mm, such that the case in accordance with the embodiment of the present invention may be formed very thinly.

As illustrated inFIG. 3, the film type actuator30includes a fixing member310, a film type flexible part320, and a haptic generation member330.

The fixing member310is fixedly attached to the bottom surface of the main body100and may be made of an elastic material, such as rubber, or the like, so as to be freely moved at the time of expanding film type flexible unit320.

Further, the elastic material, which is a conductive material having elasticity, may apply the operating signal of the controller20to the film type flexible part320.

The film type flexible part320is attached to the fixing member310and may be made of electro active polymer, electro active cellulose, and shape memory alloy, or the like, of which the length may be increased or reduced when being applied with an electrical signal by the operating signal of the control unit20. However, when the electrical signal is applied, any material of which the length may be instantly increased or reduced may be used.

In this case, the plurality of film type flexible parts320may also be arranged in parallel so as to increase the output of the motion.

The haptic generation member330contacts the film type flexible unit320to output the motion at the film type flexible part320as the haptic sensations.

In this case, the film type flexible part320and the haptic generation member330partially contact each other, such that the haptic generation member330may move left and right when the film type flexible part320is expanded and contracted.

For example, in the case in which the haptic generation member330contacts the right of the film type flexible part320, the film type flexible part320may move left when the film type flexible part320is contracted and may move right when the film type flexible part320is expanded. When the film type flexible part320is controlled to be repeatedly expanded and contracted quickly, the haptic generation member330may provide sensations such as vibrations by moving left and right quickly. On the other hand, when the film type flexible part320is controlled to be contracted quickly and stopped, the haptic generation member330may provide sensations like impacted to the left quickly.

In addition, one side of the haptic generation member330is further provided with a haptic augmented member340, which results in augmenting a change in inertia to the movement of the haptic generation member340to generate stronger haptic sensations, thereby strongly transferring the haptic generation information.

In this case, when the battery is provided, the battery may be used as the haptic augmented member340.

FIG. 4is a flow chart for describing an operating state of the haptic feedback case for electronic equipment in accordance with the embodiment of the present invention.

As illustrated inFIG. 4, the control unit20of the haptic feedback case for electronic equipment receives the haptic generation information output from the electronic equipment through the communication unit10when being supplied with power from the electronic equipment200through the connector50in the state in which the electronic equipment200is accommodated in the main body100as illustrated inFIG. 2(S10).

The haptic generation information includes the event signals such as the click event, the menu event, the next-page event, the lock-page event, the text highlight event, the music event, the GUI (Graphic User Interface) operation event, or the like, that generate various effects to the user through the haptic sensation, wherein the event signals allow the user to feel reality like actually operating buttons or menus in addition to visual information, when operating various types of user interfaces on the touch screen using the input devices such as the touch screen of devices including computing functions such as a mobile phone, a smart phone, tablet, or the like, that are the electronic equipment200.

As described above, when the control unit20receives the haptic generation information, the film type actuator30outputs the operating signal to generate haptic sensations, such that the user can feel the haptic sensation (S20).

In this case, as the film type actuator30moves left and right while the film type flexible part320is instantly expanded and contracted when the electrical signal that is the operating signal is input from the control unit20, the haptic sensation is generated through the haptic generation member330and the generated haptic sensation is further increased by the haptic augmented member340, such that the user using the electronic equipment200can feel the haptic sensation.

The exemplary embodiments of the present invention can provide the thin case protecting the electronic equipment without degrading the usability and various haptic effects even in the electronic equipment without haptic output and improve the operational sensitivity of the electronic equipment by providing the haptic feedback case for electronic equipment interworking with electronic equipment to provide the haptic sensation through the haptic generator including the film type actuator in the case for electronic equipment.