KR20150027999A

KR20150027999A - Portable terminal

Info

Publication number: KR20150027999A
Application number: KR20130106529A
Authority: KR
Inventors: 정일권; 민병성
Original assignee: 삼성전기주식회사
Priority date: 2013-09-05
Filing date: 2013-09-05
Publication date: 2015-03-13

Abstract

The portable terminal according to an embodiment of the present invention includes a case and a haptic device that is arranged on a plurality of outer circumferential surfaces of the case and generates vibration locally.

Description

[0001] PORTABLE TERMINAL [0002]

The present invention relates to a portable terminal.

With the development of computers using digital technology, auxiliary devices of computers are being developed together. Personal computers, portable transmission devices, and other personal information processing devices use various input devices such as a keyboard and a mouse And performs text and graphics processing.

However, as the use of computers is gradually increasing due to the rapid progress of the information society, there is a problem that it is difficult to efficiently operate a product by using only a keyboard and a mouse which are currently playing an input device. Therefore, there is an increasing need for a device that is simple and less error-prone, and that allows anyone to easily input information.

In addition, the technology related to the input device is shifting beyond the level that satisfies the general functions, such as high reliability, durability, innovation, design and processing related technology, etc. In order to achieve this purpose, As a possible input device, a touch sensor has been developed.

Such a touch sensor is installed on the display surface of a display such as an electronic notebook, a flat panel display device such as a liquid crystal display device (LCD), a plasma display panel (PDP), and an el (electroluminescence) and a cathode ray tube And is a tool used to allow the user to select desired information while viewing the display.

The types of touch sensors include Resistive Type, Capacitive Type, Electro-Magnetic Type, SAW (Surface Acoustic Wave Type) and Infrared Type).

These various types of touch sensor modules are used in electronic products considering the problem of signal amplification, difference in resolution, difficulty in design and processing technology, optical characteristics, electrical characteristics, mechanical characteristics, environmental characteristics, input characteristics, durability and economical efficiency Currently, the most widely used method is the resistive touch sensor module and capacitive touch sensor module.

In recent years, various methods have been provided to recognize touch such as pressing a real key so that the user can recognize the touch point. For example, a haptic device is being added as disclosed in Korean National Publication No. 10-2012-0074831. The haptic device generates vibration by moving the touch sensor up and down to recognize the tactile sense. However, since the haptic device generates vibration in the portable terminal, the user can not feel the vibration.

KR 10-2012-0074831 A1

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the conventional art, and it is an object of the present invention to provide a portable terminal case capable of recognizing tactile sensation outside the case.

The portable terminal according to an embodiment of the present invention provides a portable terminal including a case and a haptic device that is arranged on the outer circumferential surface of the case and generates vibration locally.

According to an embodiment of the present invention, there is provided a portable terminal comprising: an upper electrode for applying a voltage; A lower electrode for driving a voltage of the upper electrode; And an actuator layer formed between the upper electrode and the lower electrode, the actuator layer forming an electric field inside by the voltage of the upper electrode and generating a mechanical vertical deformation.

In the portable terminal according to an embodiment of the present invention, the haptic devices are arranged in N columns × M columns, and the haptic devices are spaced apart from each other by a certain distance so that they do not move integrally with each other.

In the portable terminal according to an embodiment of the present invention, the case is formed to enclose electronic parts of a mobile phone, a display, an MP3, a touch screen, and a tablet PC.

In the portable terminal according to an exemplary embodiment of the present invention, a coating layer is formed to apply the surfaces of the case and the haptic device to each other while bonding them together.

A portable terminal according to an embodiment of the present invention includes a case and a plurality of cells formed on an outer circumferential surface of the case; And a haptic device inserted into the cell to generate a local vibration.

In the portable terminal according to an embodiment of the present invention, the cells are arranged in N rows by M columns, and the haptic devices are spaced apart from each other by a predetermined distance so as not to move integrally with each other.

The portable terminal according to an embodiment of the present invention uses a material of PVDF (Polyvinylidene fluoride), P (VDF-TrFE) and P (VDF-TrFE-CTFE) as the actuator layer.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings.

Prior to that, terms and words used in the present specification and claims should not be construed in a conventional and dictionary sense, and the inventor may properly define the concept of the term in order to best explain its invention It should be construed as meaning and concept consistent with the technical idea of the present invention.

According to the present invention, by forming the haptic device on the outer circumferential surface of the case, the thumb, index finger, stop finger, ring finger and small finger holding the portable terminal separately provide different feelings.

In addition, by forming the haptic device on the outer circumferential surface of the case, it is possible to recognize the tactile sensation of the different five fingers, thereby improving the user's sensibility satisfaction.

Further, by forming the haptic device on the outer circumferential surface of the case, there is an effect of detecting the tactile sensation in the entire portable terminal rather than a part touching the finger.

In addition, by forming the haptic device on the outer circumferential surface of the case, there is an effect that the tactile sense is perceived by the multi-line finger with a time difference in different areas.

Further, by forming the haptic device on the outer circumferential surface of the case, there is an effect that the movement of the character on the game screen of the portable terminal and the change of direction in the navigation mode are recognized as tactile.

In addition, by forming the haptic device on the outer circumferential surface of the case, there is an effect of providing a smooth portable terminal without a switch in appearance.

1 is a perspective view of a portable terminal according to an embodiment of the present invention,
2 is a front view and a bottom view of a portable terminal according to an embodiment of the present invention,
3 is a cross-sectional view illustrating an exemplary case of a portable terminal according to an embodiment of the present invention,
4 is a cross-sectional view illustrating an exemplary case of a portable terminal according to a second embodiment of the present invention, and Fig.
5 is a perspective view of a haptic device according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The objectives, specific advantages, and novel features of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. It should be noted that, in the present specification, the reference numerals are added to the constituent elements of the drawings, and the same constituent elements are assigned the same number as much as possible even if they are displayed on different drawings. Also, the terms "one side,"" first, ""first,"" second, "and the like are used to distinguish one element from another, no. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following description of the present invention, detailed description of related arts which may unnecessarily obscure the gist of the present invention will be omitted.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view of a portable terminal according to an embodiment of the present invention, FIG. 2 is a front view and a bottom view of a portable terminal according to an embodiment of the present invention, FIG. 3 is a perspective view of a portable terminal according to an embodiment of the present invention, 4 is a cross-sectional view illustrating a case of a portable terminal according to a second embodiment of the present invention, and FIG. 5 is a perspective view of a haptic device according to an embodiment of the present invention.

The term " touch " as used throughout this specification is intended to be broadly interpreted to mean not only direct contact with the contact receiving surface, but also means that the input means is proximate a considerable distance from the contact receiving surface. Also, the term 'portable terminal' should be widely interpreted as a type of product that a user can touch and recognize, such as a mobile phone, a display, an MP3, a touch screen, and a tablet PC.

The present invention allows a user to recognize the tactile sensation on the surface of the case 200. The case 200 of the portable terminal 1 has various user experiences (user experience (UX) ), It is possible to double the fun and sensitivity of the user.

The portable terminal 1 according to an embodiment of the present invention includes a case 200 and a haptic device 100 that is arranged on a plurality of outer circumferential surfaces of the case 200 and generates vibration locally.

Referring to FIGS. 1 to 3, the case 200 protects the internal electronic component 220 from external foreign matter and impact. As shown in FIGS. 1 and 2, the case 200 of the portable terminal 1 shows a cellular phone case as an example. The portable terminal 1 should be interpreted as a product that is perceived as touching in various products such as a mobile phone, a display, an MP3, a touch screen and a tablet PC. The case 200 protects the electronic component 220 from an external impact. The case 200 may be made of a synthetic resin material capable of being injected, or a metal material such as stainless steel, steel (STS), and titanium (Ti). In addition, the case 200 may be made of urethane and a rubber material that absorbs shocks to prevent slippage of the user.

The case 200 is formed in a container shape so as to store the electronic component 220 therein (see FIG. 3). This is not intended to limit the shape of the case 200. In the case 200, a plurality of cells 240 are formed at regular intervals. The cell 240 is coupled to a haptic device 100, which will be described later. The cells 240 are formed on the back surface of the case 200 with N rows by M rows. This is not intended to limit the location of the cell 240. It is illustrated that the position of the cell 240 is arranged in 3 × 5 rows on the back surface of the case 200 (see FIG. 2). This is not to limit the location of the cell 240. The cell 240 can be formed on the front surface, the side surface, and the bottom surface of the case 200. In this case, the cell 240 is formed in a range that is not damaged by an external impact.

There is an effect that the program user actually recognizes the motion of the game character by controlling the haptic device 100 inserted in the cell 240 for each section. This may allow the user to perceive the change of direction in the navigation mode with touch. By inserting the haptic device 100 into the cell 240, a surface without a switch can be provided on the surface of the portable terminal. There is an effect of improving the productivity of the product and an effect of improving the hardness of the product. This is because the haptic device 100 can operate in place of the mechanical switch, i.e., the button switch.

The haptic device 100 is coupled to the outer circumferential surface of the case 200. The haptic device 100 is inserted into the cell 240 and formed. The haptic device 100 controls the vibration of each section according to the voltage and frequency of the electronic component 220.

In some cases, the haptic device 100 may be formed to be coupled along the outer circumferential surface of the case 200 (see FIG. 4). At this time, the application layer 260 is formed so that the haptic device 100 adheres to the case 200. At this time, the application layer 260 is bonded to the case 200 while applying the surface of the haptic device 100. Vibration can be controlled by frequency and voltage through each control section (not shown).

The haptic device 100 shrinks and expands due to deformation and displacement at the time of power application to generate vibration (vibration mode). The haptic device 100 may have a rectangular plate shape or a circular shape. This is not to limit the shape of the haptic device 100. The haptic device 100 includes an upper electrode 110 for applying a voltage and a lower electrode 150 for driving signals of the upper electrode 110. Vertical deformation is applied to the upper electrode 110 and the lower electrode 150 And an actuator layer 130 that generates a magnetic field.

The upper and lower electrodes 110 and 150 are driven by applying a constant frequency or constant voltage from the outside or inside. As the upper / lower electrodes 110 and 150, it is appropriate to use a transparent material such as ITO (Indium Tin Oxide). This is not intended to specifically limit the material of the upper / lower electrodes 110, 150. An actuator layer 130 is formed between the upper and lower electrodes 110 and 150.

An electric field is formed in the actuator layer 130 according to driving signals of the upper and lower electrodes 110 and 150. The actuator layer 130 is physically vertically deformed by an internal electric field to cause a displacement. Vertical deformation and displacement of the actuator layer 130 can be controlled by physical properties according to the material, voltage and frequency for generating an electric field, and the like. The actuator layer 130 is preferably made of a material having excellent thermal and chemical properties. For example, it is appropriate to select one of the three materials of the actuator layer 130 as polyvinylidene fluoride (PVDF), P (VDF-TrFE) and P (VDF-TrFE-CTFE).

However, in some cases, the actuator layer 130 may be made of various materials such as an electrostrictive polymer, a dielectric elastomer, an ionic polymer, and a piezoelectric polymer. This is not intended to limit the material of the actuator layer 130 described above.

It is appropriate that the thickness of the actuator layer 130 is formed so as not to exceed 50 占 퐉 to 500 占 퐉. This is to prevent the amount of displacement of the actuator layer 130 according to the magnitude of the voltage, the extent to which the user perceives tactile sensation upon touch, and the damage due to the displacement of the touch sensor. In addition, the thickness of the haptic device 100 is increased, and the thickness of the haptic device 100 is set to 50 탆 to 500 탆 in consideration of problems in the laminating process.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the scope of the present invention is not limited to the above-described embodiments and various changes and modifications may be made without departing from the scope of the present invention. It will be apparent that modifications and improvements can be made by those skilled in the art.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

1: portable terminal 100: haptic device
110: upper electrode 130: lower electrode
150: actuator layer 200: case
220: Electronic component 240: Cell
260:

Claims

Case and
And a plurality of haptic devices arranged on the outer circumferential surface of the case to generate vibrations locally.

The method according to claim 1,
Wherein the haptic device comprises:
An upper electrode for applying a voltage;
A lower electrode for driving a voltage of the upper electrode; And
And an actuator layer formed between the upper electrode and the lower electrode, the actuator layer having an electric field formed therein by the voltage of the upper electrode and generating a mechanical vertical deformation.

The method of claim 2,
Wherein the haptic device is arranged in N rows by M columns and is spaced apart from the haptic device by a predetermined distance so that the haptic devices do not move integrally with each other.

The method according to claim 1,
Wherein the case is formed to enclose electronic parts of a mobile phone, a display, an MP3, a touch screen, and a tablet PC.

The method according to claim 1,
And a coating layer for bonding the case and the surface of the haptic device to each other while applying the coating.

Case and
A plurality of cells formed on the outer circumferential surface of the case;
And a haptic device inserted into the cell to generate a local vibration.

The method of claim 6,
Wherein the haptic device comprises:
An upper electrode for applying a voltage;
A lower electrode for driving a voltage of the upper electrode; And
And an actuator layer formed between the upper electrode and the lower electrode, the actuator layer having an electric field formed therein by the voltage of the upper electrode and generating a mechanical vertical deformation.

The method of claim 7,
Wherein the cells are arranged in N rows by M columns and are spaced apart from each other by a predetermined distance so that the haptic devices do not move integrally with each other.

The method of claim 6,
Wherein the case is formed to enclose electronic parts of a mobile phone, a display, an MP3, a touch screen, and a tablet PC.

The method of claim 7,
Wherein the actuator layer uses a material of PVDF (Polyvinylidene fluoride), P (VDF-TrFE) and P (VDF-TrFE-CTFE).