KR20170018658A - Haptic Styles Pen having Sense of a Variety of Handwriting - Google Patents

Abstract

One aspect of the present invention relates to a haptic stylus pen having various senses of handwriting and more particularly, to a haptic stylus pen that can be applied to a tablet computer, a smart phone, or the like, and can realize various senses of handwriting. According to an embodiment of the present invention, provided is a stylus pen capable of transmitting various senses of handwriting when a user uses a writing instrument such as a ballpoint pen or a pencil on a writing surface such as paper or cloth. The haptic stylus pen includes a vibration protrusion part, an actuator, and a control part.

Description

[0001] The present invention relates to a haptic stylus pen having various writing feel,

One aspect of the present invention relates to a haptic stylus pen having a variety of writing feel, and more particularly, to a haptic stylus pen applicable to a tablet computer, a smart phone, or the like, and capable of various writing feeling implementations.

The contents described in this section merely provide background information on the embodiment of the present invention and do not constitute the prior art.

A stylus pen applied to a tablet computer or a smart phone performs information input by scratching a touch on a liquid crystal touch screen.

Since the liquid crystal is generally formed of a smooth surface, when a user scratches a liquid crystal with a stylus pen to input information, it does not provide a feeling of writing feeling formed when a writing material such as a ballpoint pen or the like is used to write on a writing surface of paper or the like.

In the conventional art (Korean Unexamined Patent Application Publication No. 2007-0021358), a structure such as a coil spring is employed in a pen tip, a load applied to a pen tip is buffered when a pen is used for writing, thereby reducing a shock transmitted to a user's hand, Discloses a stylus pen that can protect the surface of a screen. However, in this document, it is not disclosed that a stylus pen is actively used to provide a user with a sense of writing.

Writing feel can increase the user 's immersion when writing. Therefore, it is meaningful to provide such a writing feeling even when the stylus pen is scratched on the liquid crystal.

Accordingly, an aspect of the present invention has been proposed in order to solve the above-mentioned problems, and it is an object of the present invention to provide various kinds of felt which can be felt when a writing instrument such as a ballpoint pen, a pencil, The stylus pen can transmit a writing feeling of the stylus pen.

The technical object of the present invention is not limited to the above-mentioned technical objects and other technical objects which are not mentioned can be clearly understood by those skilled in the art from the following description will be.

According to an aspect of the present invention, there is provided a writing device for a writing device, comprising: a housing; and a vibration protrusion protruding from the housing.

Further, it may include an actuator installed inside the housing and connected to the vibration projection to provide vibration to the vibration projection.

The controller may control the actuator to generate a first vibration having a first frequency and a second vibration having a second frequency lower than the first frequency in order to realize a writing feeling of the vibration projection.

Here, the first frequency may be a high frequency that the user can not feel. For example, the first frequency may be 600 Hz or higher.

Here, the second frequency may be a frequency that the user can perceive.

Here, the first vibration may be a vibration for realizing writing resistance of various writing instruments.

Here, the second vibration may be a vibration for realizing the surface texture of various writing surfaces.

According to an embodiment, the actuator may be a piezoelectric actuator.

According to an embodiment, the control section can control the actuator such that the first vibration and the second vibration are generated when the vibration projection comes into contact with the touch screen.

According to the embodiment, the control section can control the actuator such that the first vibration and the second vibration are generated at the same time.

According to an embodiment of the present invention, the housing is provided with a speaker for generating sounds of various writing instruments, and the sound may be generated when the vibrating projection contacts the touch screen.

According to the embodiment, the controller can control the actuator based on the information about the writing resistance of the various writing instruments collected and the information about the surface texture of the various collected writing surfaces.

According to another aspect of the present invention, there is provided a method for implementing a writing sensation, comprising the steps of: generating a first vibration having a frequency range that a user can not feel to implement a set writing resistance .

The method may further include a second vibration generating step of generating a second vibration having a range that the user can feel to simulate the surface texture of the set writing surface.

And a sound generation step of generating sound of the writing instrument.

Here, the first vibration generation step, the second vibration generation step, and the sound generation step may be performed simultaneously.

Here, the first vibration generation step, the second vibration generation step, and the sound generation step may be performed upon contact with the touch screen, and may be canceled in non-contact.

According to another aspect of the present invention, there is provided a device for writing electronic documents, the device including a housing having an actuator chamber and a vibration output chamber.

In addition, the actuator may include an actuator installed in the actuator chamber and generating vibrations having various frequencies in order to simultaneously realize the writing resistance and the surface texture of the writing surface of the writing instrument.

And a vibration output unit installed in the vibration output chamber and transmitting the generated vibration to the outside.

Here, the vibration output unit may include a receiving unit that receives the vibration generated from the actuator, a transmitting unit that is connected to the receiving unit to transmit vibration, and an external output unit that receives vibration from the transmitting unit and outputs the vibration to the outside have.

Here, the vibration output unit may be provided with a return spring for retracting together with the actuator when the actuator contracts after the actuator expands.

As described above, according to one embodiment of the present invention, it is possible to provide a stylus pen capable of transmitting various types of writing feel that a user can feel when using a writing instrument such as a ballpoint pen or a pencil on a writing surface such as paper or cloth .

In addition, the effects of the present invention have various effects such as excellent general versatility according to the embodiments, and such effects can be clearly confirmed in the description of the embodiments described later.

Fig. 1 shows a device for writing electronic documents according to an embodiment of the present invention.
Fig. 2 shows the variation of the friction coefficient according to the amplitude change.
Fig. 3 shows the change of the friction coefficient according to the change of the vibration frequency.
Fig. 4 shows the result of measuring the coefficient of friction for each writing instrument.
5 illustrates a method of implementing a writing feeling according to an embodiment of the present invention.
FIG. 6 shows a digital writing device according to another embodiment of the present invention.

Hereinafter, an embodiment of the present invention will be described in detail with reference to exemplary drawings.

It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference numerals whenever possible, even if they are shown in different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In addition, the size and shape of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, terms specifically defined in consideration of the constitution and operation of the present invention are only for explaining the embodiments of the present invention, and do not limit the scope of the present invention.

Fig. 1 shows a device for writing electronic documents according to an embodiment of the present invention.

The electronic writing device 100 according to an embodiment of the present invention may include a housing 110, a vibration projection 120, an actuator 130, and a controller 140.

The housing 110 may have a shape elongated in the longitudinal direction. Specifically, the housing 110 may be in the form of a pen, but is not limited thereto.

The vibration protrusion 120 may be installed to protrude outward from the inside of the housing 110. The vibration protrusion 120 may be configured to act as a kind of pen tip, and may be a portion that vibrates when contacted with the touch screen to realize a writing feeling.

Here, the touch screen may be constituted by a liquid crystal according to an embodiment, may be installed in a tablet computer, a smart phone, or the like, and may be configured to receive information by contact with the vibration projection 120.

The actuator 130 may be installed inside the housing 110. In addition, the actuator 130 can be directly or indirectly connected to the vibrating protrusion 120 and can provide vibration to the vibrating protrusion 120 by this structure.

Actuator 130 may be, but is not limited to, piezoelectric actuator 130 that converts electrical energy into vibrational energy according to an embodiment.

The controller 140 may be installed inside the housing 110 or outside the housing 110. The control unit 140 may control the actuator 130 so that the vibration protrusion 120 can realize a writing feeling. Specifically, power may be supplied to operate the actuator 130, or a control signal may be sent so that the actuator 130 is controlled.

The control unit 140 may control the actuator 130 such that the actuator 130 generates a first vibration having a first frequency and a second vibration having a second frequency lower than the first frequency.

Here, the first frequency may be a high frequency that the user of the electronic writing device 100 can not sense by the embodiment. For example, the first frequency may be a frequency of 600 Hz or more.

The first vibration may be a vibration for realizing a writing resistance of various writing instruments. Here, the various writing instruments may include a pencil, a sharp pencil, a ballpoint pen, a pen, a pencil, and a color pen having various colors, and the writing resistance may mean a feeling of being dragged when the writing instrument moves on the writing surface. That is, the writing resistance can mean the force required for the above-described writing instrument to move on the writing surface. The writing surface mentioned here will be described later.

Implementing a writing resistance may be, for example, implementing or simulating a respective resistance that may vary depending on the writing instrument or depending on the writing instrument and the writing surface.

For example, the control unit 140 may implement the writing resistance by raising or lowering the frequency of the vibration. That is, a variety of writing resistance of various writing instruments can be realized based on the phenomenon that the friction coefficient decreases as the vibration frequency increases and the friction coefficient increases as the vibration frequency decreases as the vibration of the object vibrates.

The relationship between the amplitude or frequency and the friction coefficient will be described in more detail.

Fig. 2 shows the variation of the friction coefficient according to the amplitude change.

Referring to FIG. 2, the X-axis shows the change in amplitude and the Y-axis shows the change in the friction coefficient. The graph shows the case where the vibration frequencies are 800 Hz (black), 850 Hz (pink), 900 Hz (green), 950 Hz (red), and 1000 Hz (blue). Experiments were carried out in such a manner that the coefficient of friction was measured by fixing the amplitude to the above-mentioned frequency and changing the amplitude to 0.1 μm, 0.2 μm, 0.3 μm, 0.4 μm and 0.5 μm. As a result of the experiment, It can be confirmed that the friction coefficient is decreased.

Fig. 3 shows the change of the friction coefficient according to the change of the vibration frequency.

Referring to FIG. 3, the X-axis shows the change in the vibration frequency and the Y-axis shows the change in the friction coefficient. The graph shows the case where the amplitudes are 0.1 mu m (black), 0.2 mu m (pink), 0.3 mu m (green), 0.4 mu m (red), and 0.5 mu m (blue). Experiments were carried out in such a manner that the friction coefficient was measured by changing the vibration frequency to 800 Hz, 850 Hz, 900 Hz, 950 Hz, and 1000 Hz, and the vibration frequency was increased It can be confirmed that the friction coefficient decreases.

Here, the second frequency may be a frequency that the user using the electronic writing device 100 can feel, according to the embodiment. For example, the second frequency may be a frequency of 600 Hz or less.

The second vibration may be a vibration for realizing the surface texture of the various writing surfaces. Here, the various writing surfaces may include surfaces such as paper, cloth, and the like, and the surface texture may refer to bending or unevenness formed on the surface due to the material of the writing surface or the like. These vibrations are intended to simulate the texture of the writing surface and have a frequency that a person can feel.

The controller 140 may control the actuator 130 to generate the first vibration and the second vibration when the vibration protrusion 120 contacts the touch screen and the vibration protrusion 120 may contact the touch screen It is possible to control the actuator 130 so that the first vibration and the second vibration stop when released.

The controller 140 may control the actuator 130 to generate the first vibration and the second vibration at the same time. That is, the writing resistance of the writing instrument and the surface texture of the writing surface can be simultaneously realized by simultaneously generating different vibrations.

According to the embodiment, the housing 110 may be provided with a speaker 150 that generates sounds of various writing instruments. Here, the sound generated by the speaker 150 is generated when the vibrating protrusion 120 touches the touch screen, and can be stopped when the contact is released.

The control unit 140 may control the actuator 130 based on the information about the writing resistance of the various writing instruments collected and the information about the surface texture of the various collected writing surfaces.

Fig. 4 shows the result of measuring the coefficient of friction for each writing instrument. Referring to FIG. 4, as a result of measuring the coefficient of friction for each actual writing instrument, it is known that the coefficient of friction of the felt pen is large and that the coefficient of friction of the ballpoint pen 2 is small. Based on the information thus collected and stored, It is possible to control the actuator 130 according to a user's request using the writing device 100.

5 illustrates a method of implementing a writing feeling according to an embodiment of the present invention.

The method of implementing a writing feeling according to an embodiment of the present invention may include a first vibration generating step (S100) of generating a first vibration having a frequency range that the user can not feel to implement a set writing resistance .

And a second vibration generating step (S110) of generating a second vibration having a range that the user can feel to simulate the surface texture of the set writing surface.

And a sound generating step S120 for generating sound of the writing instrument.

Here, the first vibration generating step S100, the second vibration generating step S110, and the sound generating step S120 may be performed simultaneously.

Here, the first vibration generating step (S100), the second vibration generating step (S110), and the sound generating step (S120) may be performed upon contact with the touch screen, and may be canceled without contact.

FIG. 6 shows a digital writing device according to another embodiment of the present invention.

Referring to FIG. 6, the electronic writing device 200 according to the present embodiment includes a housing 210 having an actuator chamber 211 and a vibration output chamber 212; An actuator 220 installed in the actuator chamber 211 to generate vibrations having various frequencies in order to simultaneously realize the writing resistance and the surface texture of the writing surface of the writing instrument; And

And a vibration output unit 230 installed in the vibration output chamber 212 and transmitting the generated vibration to the outside.

The vibration output unit 230 includes a receiving unit 231 for receiving vibrations generated from the actuator 220, a transmitting unit 232 for transmitting vibrations connected to the receiving unit 231, And an external output unit 233 that receives vibration from the transmission unit 232 and outputs the vibration to the outside.

More specifically, the actuator chamber 211 may be formed in the housing 210, and the vibration output chamber 212 may be formed adjacent to the actuator chamber 211. An actuator 220 for generating vibration is installed in the actuator chamber 211 and a vibration output unit 230 for transmitting the generated vibration to the outside may be installed in the vibration output chamber 212. The actuator 220 may be a piezoelectric body or a device including a piezoelectric body and the receiving portion 231 of the vibration output portion 230 may be in contact with one side of the actuator 220. [ Here, the accommodating portion 231 may be attached to the actuator 220 to accommodate the vibration in such a manner that the actuator 220 advances when the actuator 220 expands and retreats when the actuator 220 contracts. The accommodating portion 231 may be installed in contact with the actuator 220 directly or indirectly, and may be fixed to the actuator 220.

The transmitting part 232 may transmit the vibration received by the receiving part 231 to the external output part 233 and the external output part 233 may receive the vibration from the transmitting part 232, Can be output. The external output unit 233 may have a tip shape and may be installed so that all or a part of the external output unit 233 protrudes to the outside of the housing 210. In the vibration output section 230, the receiving section 231, the transmitting section 232, and the external output section 233 may be integrally formed.

The electronic writing device 200 according to the present embodiment may include a return spring 240 for returning the vibration output unit 230 according to the embodiment.

The return spring 240 may serve to retract the vibration output part 230 together with the actuator 220 when the actuator 220 is contracted after the expansion.

The return spring 240 may be installed in the vibration output unit 230 according to an embodiment.

The vibration output chamber 212 may have a spring chamber 212a and a transmission chamber 212b. The spring chamber 212a can receive the return spring 240. The transmission chamber 212b is narrower in diameter than the spring chamber 212a and is provided with the transmission portion 232 passing therethrough. It is possible to guide the linear movement.

The receiving portion 231 of the vibration output portion 230 may be formed to protrude radially from the transmitting portion 232 and the end of the transmitting portion 232 may be formed outside the housing 210 So that the external output section 233 can be formed. In this case, one end of the return spring 240 may abut against one surface of the receiving portion 231 and the other end may abut against the stepped surface between the spring chamber 212a and the transfer chamber 212b, and the vibration output portion 230 Shrinks when it advances and swells when it retreats, thereby returning the vibration output unit 230.

The above description is only illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention.

The embodiments disclosed in the present invention are not intended to limit the scope of the present invention and are not intended to limit the scope of the present invention.

The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

100: electronic writing device
110: Housing
120: Vibration protrusion
130: Actuator
140:
150: Speaker

Claims (17)

housing;
A vibration protrusion protruding outside the housing;
An actuator installed inside the housing and connected to the vibration projection to provide vibration to the vibration projection; And
A controller for controlling the actuator to generate a first vibration having a first frequency and a second vibration having a second frequency lower than the first frequency in order to realize a writing feeling of the vibration projection;
And a control unit. The method according to claim 1,
Wherein the first frequency is a high frequency that the user can not feel. 3. The method of claim 2,
Wherein the first frequency is 600 Hz or more. The method according to claim 1,
Wherein the second frequency is a frequency that the user can feel. The method according to claim 1,
Wherein the first vibration is a vibration for realizing writing resistance of various writing instruments. The method according to claim 1,
Wherein the second vibration is a vibration for realizing the surface texture of the various writing surfaces. The method according to claim 1,
Wherein the actuator is a piezoelectric actuator. The method according to claim 1,
Wherein the controller controls the actuator such that the first vibration and the second vibration are generated when the vibration projection comes into contact with the touch screen. The method according to claim 1,
Wherein the controller controls the actuator so that the first vibration and the second vibration are simultaneously generated. The method according to claim 1,
Wherein the housing is provided with a speaker for generating sounds of various writing instruments, wherein the sound is generated when the vibrating projection contacts the touch screen. The method according to claim 1,
Wherein the controller controls the actuator on the basis of information on the writing resistance of the various writing instruments collected and information on the surface texture of the various collected writing surfaces. A first vibration generating step of generating a first vibration having a frequency range that the user can not feel to implement the set writing resistance;
A second vibration generating step of generating a second vibration having a range that the user can feel to simulate the surface texture of the set writing surface; And
A sound generating step of generating sound of a writing instrument;
The method comprising the steps of: 13. The method of claim 12,
Wherein the first vibration generation step, the second vibration generation step, and the sound generation step are simultaneously performed. 13. The method of claim 12,
Wherein the first vibration generating step, the second vibration generating step, and the sound generating step are performed upon contact with the touch screen, and are released when the contact is not performed. A housing having an actuator chamber and a vibration output chamber;
An actuator installed in the actuator chamber and generating vibrations having various frequencies in order to simultaneously realize the writing resistance and the surface texture of the writing surface of the writing instrument; And
A vibration output unit installed in the vibration output chamber and transmitting the generated vibration to the outside;
And a control unit. 16. The method of claim 15,
The vibration output unit may include a receiving unit for receiving the vibration generated from the actuator, a transmitting unit connected to the receiving unit for transmitting the vibration, and an external output unit receiving the vibration from the transmitting unit and outputting the vibration to the outside. . 17. The method of claim 16,
Wherein the vibration output portion is provided with a return spring for retracting together with the actuator when the actuator contracts after the actuator expands.

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