KR20120029852A - Pointing device and electronic device having the same - Google Patents

Abstract

PURPOSE: A complex pointing device and an electronic device including the same are provided to implement a consecutive or scroll function of a cursor by combining a magnetic sensing module and an optical sensing module. CONSTITUTION: A magnetic sensing module(1100) embeds a magnet(1117) and senses magnetic variation according to the movement variation of the magnet. An optical sensing module(1200) is installed to the magnet sensing module. The optical sensing module senses the moving displacement of a subject. The magnetic sensing module includes an operation member which embeds the magnet. The optical sensing module includes an optical module housing, a cover plate, and an optical image sensor.

Description

Composite pointing device and electronic device having the same {POINTING DEVICE AND ELECTRONIC DEVICE HAVING THE SAME}

The present invention relates to a composite pointing device and an electronic device having the same, and more particularly, to a composite pointing device for moving a pointer and a cursor on a screen of an electronic device, and an electronic device having the same.

Recently, electronic devices have become smaller and smaller, and a graphic user interface (GUI) method is used to facilitate the operation of the electronic devices. The pointing device is used to control the movement of the pointer of the graphical user interface. Such a pointing device is a device for two-dimensionally adjusting the movement of a pointer on a screen, and various types of mice or touch pads are used.

The hall mouse utilizes a magnetic sensor that detects a magnetic field, and is a pointing device that detects a moving displacement of a magnet and moves the pointer or cursor on the screen. If the hole mouse continuously presses the key (button) on which the magnet is seated in one direction, the continuous mouse moves and the scrolling function can be performed. This is effective for necessary electronics. On the other hand, the downside is that the magnetic sensor detects the movement of the magnet and the movement of the magnet is a kind of spring action, so it is short but delayed, making it very difficult and precise. Therefore, the detailed manipulation of the pointer and the cursor on the screen is difficult. In addition, many components, such as magnets, tension mechanisms, magnetic sensors, and the like, there is a limit to reduce the overall module size.

The optical mouse is an upside-down computer optical mouse, and is a pointing device that reflects light emitted from a light source from a subject (a user's finger) and senses the pointer or cursor on the screen. Such an optical mouse can be miniaturized because it does not need a tension mechanism for moving a magnet like the hole mouse described above, and the proper design of the reflector allows it to harmonize well with the overall design of the mobile phone, and the overall thickness of the apparatus is also reduced (2 mm). Possible) In addition, there is an advantage that a fine manipulation of the pointer and the cursor is possible on the screen. However, a relatively large displacement on one screen, for example, to make it move diagonally, it is inconvenient to swipe several times (Hole Mouse keeps moving in one direction), and the scroll function cannot be implemented. Phones have a disadvantage of poor utility.

Embodiments of the present invention provide a composite pointing device and an electronic device having the same, which can simultaneously realize the advantages of continuous operation or quick screen rotation of a hole mouse, and the fine operation of an optical mouse.

The present invention also provides a composite pointing device capable of quickly and accurately moving a pointer or a cursor on a large screen, and an electronic device having the same.

The composite pointing device according to an embodiment of the present invention includes a magnetic sensing module having a magnet embedded therein and sensing a magnetic field change according to a displacement of the magnet; And a light sensing module installed in the magnetic sensing module and configured to reflect a light emitted from the light source to the subject to sense movement displacement of the subject.

The magnetic sensing module includes an operation member in which a magnet is embedded, the light sensing module includes at least a cover plate in contact with a subject, and the cover plate is provided in the operation member.

In particular, the magnetic sensing module includes an operating member having a hollow portion formed at a center thereof and a magnet embedded at an edge thereof, wherein the light sensing module includes an optical module housing having an upper portion opened and installed in the hollow portion of the operating member; A cover plate installed on the optical module housing and in contact with the subject; A light source provided inside the optical module housing and irradiating light to the cover plate; And an optical image sensor provided inside the optical module housing and sensing light reflected by the light source to the subject on the cover plate.

In another embodiment, the magnetic sensing module includes an operation member in which the magnet is built in the center, and the optical sensing module includes an optical module housing having an upper portion opened and installed on an upper surface of the operation member; A cover plate installed on the optical module housing and in contact with the subject; A light source provided inside the optical module housing and irradiating light to the cover plate; And an optical image sensor provided inside the optical module housing and sensing light reflected by the light source to the subject on the cover plate.

In another embodiment, the magnetic sensing module has a hollow part in the center thereof, and an operation member in which the magnet is embedded at an edge thereof; A substrate provided on the lower portion of the manipulation member and mounted with a plurality of magnetic sensors for detecting a magnetic field change according to the displacement of the magnet, wherein the light sensing module is installed in the hollow portion of the manipulation member to contact the subject. A cover plate; A light source mounted on the substrate and irradiating light to the cover plate; And an optical image sensor mounted on the substrate and sensing light reflected by the light source to the subject on the upper surface of the cover plate.

In another embodiment, the magnetic sensing module has a hollow part in the center, and the operation member in which the magnet is embedded in the hollow part; A substrate provided under the operating member and mounted with a plurality of magnetic sensors for detecting a magnetic field change according to the displacement of the magnet, wherein the light sensing module is installed on the magnet of the operating member to contact the subject; A cover plate; A light source mounted on the substrate and irradiating light to the cover plate; And an optical image sensor mounted on the substrate and sensing light reflected by the light source to the subject on the upper surface of the cover plate.

In this case, the magnet is preferably a transparent plastic magnet.

On the other hand, the magnetic sensing module is provided in the lower portion of the operation member, the substrate is mounted with a plurality of magnetic sensors for detecting the magnetic field change according to the displacement of the magnet; It includes an elastic member provided on the operation member to provide a restoring force according to the movement of the operation member.

The magnetic sensing module includes a push switch installed on the substrate located directly below the central area of the manipulation member.

A sensor condenser lens may be disposed between the cover plate and the optical image sensor to condense the light reflected from the cover plate to the optical image sensor.

The pressing part is formed around the cover plate at an upper portion of the optical module housing.

And a light source condenser lens for condensing the light emitted from the light source to the cover plate between the light source and the cover plate.

At least one of the cover plate and the sensor condenser lens, and between the sensor condenser lens and the optical image sensor is characterized in that the reflection member for changing the movement path of the light is provided.

An electronic device according to an embodiment of the present invention includes a control unit for processing data; A screen display for displaying an image; And a pointing device for supplying a coordinate signal for moving a pointer or a cursor in the screen display unit, wherein the pointing device includes: a magnetic sensing module configured to sense a magnetic field change according to a moving displacement of the magnet; And a light sensing module installed in the magnetic sensing module and configured to reflect a light emitted from the light source to the subject to sense movement displacement of the subject.

The magnetic sensing module includes an operation member in which a magnet is embedded, the light sensing module includes at least a cover plate in contact with a subject, and the cover plate is provided in the operation member.

According to an embodiment of the present invention, as the device is implemented by combining the magnetic sensing module and the optical sensing module, the magnetic sensing module implements a continuous operation or a scrolling operation of a pointer or a cursor on the screen, and the optical sensing module Fine control of pointers or cursors can be implemented on the screen.

Accordingly, it is possible to operate the pointer or cursor quickly and precisely even on a large screen by attaching it to a display screen of an increasingly large IT device or a remote controller such as an IPTV in the future.

1 is a perspective view showing a composite pointing device according to a first embodiment of the present invention.
2 is a cross-sectional view showing a composite pointing device according to a first embodiment of the present invention.
3 is a perspective view showing a composite pointing device according to a second embodiment of the present invention.
4 is a cross-sectional view showing a composite pointing device according to a second embodiment of the present invention.
5 is a cross-sectional view showing a composite pointing device according to a third embodiment of the present invention.
6 is a cross-sectional view showing a composite pointing device according to a fourth embodiment of the present invention.
7 is a cross-sectional view showing a composite pointing device according to a fifth embodiment of the present invention.
8 is a sectional view showing a composite pointing device according to a sixth embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It will be apparent to those skilled in the art that the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, It is provided to let you know. Like numbers refer to like elements in the figures.

[First Embodiment]

1 is a perspective view showing a composite pointing device according to a first embodiment of the present invention, Figure 2 is a cross-sectional view showing a composite pointing device according to a first embodiment of the present invention.

Referring to the drawings, the composite pointing device 1000 according to the first embodiment includes a magnetic sensing module 1100 having a large magnet 1117 embedded therein and sensing a magnetic field change according to a displacement of the magnet 1117. ; The light sensing module 1200 installed in the magnetic sensing module 1100 and provided with a light source 1230 to reflect light emitted from the light source 1230 to a subject (a user's finger) to sense movement displacement of the subject. It includes. Thus, the operation of the pointer or cursor by the magnetic sensing module 1100 and the operation of the pointer or cursor by the light sensing module 1200 may be implemented together on the screen.

The magnetic sensing module 1100 is a means for detecting the movement displacement of the magnet 1117 by the magnetic sensor and moving the pointer or the cursor on the screen. A hollow part 1111 is formed at the center and the magnet is embedded at the edge. The operation member 1110; A substrate 1120 provided below the operation member 1110 and mounted with a plurality of magnetic sensors 1121 for detecting a magnetic field change according to the displacement of the magnet 1117; It is provided on the operation member 1110 includes a vertical elastic member 1130 to provide a restoring force according to the movement of the operation member 1110.

The operation member 1110 is a means for changing the position of the magnet 1117 by the user's pressing operation with a built-in magnet 1117, the hollow portion 1111 is formed in the center area, the lower portion of the approximately donut It comprises a pressure plate 1113 having a shape, a fixed plate 1115 coupled to the lower side of the pressure plate 1113, and a magnet 1117 embedded in the fixed plate 1115 and embedded therein.

The pressure plate 1113 may have, for example, colors, figures, and fine concavo-convexities divided into front, rear, left, right, east, west, north, and south on the upper surface thereof. Here, the visual display to the tactile display formed on the upper surface of the pressure plate 1113 is not limited to only four directions of front, rear, left and right, and may be four or more directions or less. In addition, the hollow part 1111 described above is formed at the center of the upper surface of the pressing plate 1113 so as to penetrate vertically.

The fixing plate 1115 is formed in a shape corresponding to the shape of the bottom surface of the pressure plate 1113 and is inserted into the bottom surface of the pressure plate 1113. In addition, a mounting groove 1115a is formed in a ring shape on an upper surface of the fixing plate 1115 so that the magnet 1117 is embedded.

The operation member 1110 is divided into a pressure plate 1113, a fixed plate 1115 and a magnet 1117, but is not limited thereto. A hollow part 1111 is formed in the center, and a periphery of the hollow part 1111 As such, the magnet 1117 may be implemented in various ways.

The magnet 1117 is magnetized one pole up and down, that is, an N pole or an S pole is formed on an upper surface of the magnet 1117, and a magnet having an S pole or an N pole corresponding to an upper surface thereof is preferably used. Of course, the present invention is not limited thereto, and magnets in which various magnetizations are performed may be used. For example, magnets in which outer diameter multipoles (2 poles, 4 poles, 8 poles, etc.) magnetization, inner diameter multipole magnetization or inner and outer diameter multipole magnetization are performed can be used. The magnet 1117 is embedded in the mounting groove 1115a of the fixing plate 1115 and is provided around the hollow part 1111. At this time, the magnet 1117 is preferably a ring-type magnet of a circular or square shape. Of course, the magnet 1117 is not limited thereto, and independent magnets may be disposed up, down, left, and right.

As the substrate 1120, a printed circuit board having a predetermined thickness may be used. As illustrated in the drawing, the substrate 1120 has a substantially circular shape that matches the shape of the operation member 1110. Of course, the overall shape of the substrate 1120 and the operation member 1110 is not limited to the circular shape can be variously modified. For example, the substrate 1120 and the operation member 1110 may be used as a polygon such as a quadrangle. In addition, the upper surface of the substrate 1120 may be provided with a push switch 1140 for generating a predetermined output signal according to the pressure in the vertical direction, the center of the push switch 1140 and the center of the operation member 1110. The push switch 1140 is located on the same axis, and the push switch 1140 is contracted when pressed by the optical module housing 1210 of the optical sensing module 1200, which will be described later. Is preferably.

In addition, the substrate 1120 includes a plurality of magnetic sensors 1121 that detect a magnetic field change of the magnet 1117 according to the pressing direction of the manipulation member 1110 and output corresponding coordinate values. In addition, a control unit (not shown) which amplifies the output of the magnetic sensor 1121 and aggregates it detects and outputs a change in the final magnetic field.

That is, the magnetic sensor 1121 is the hollow part 1111 when the pressing direction of the operating member 1110 is four directions of front, rear, left and right so that the magnetic sensor 1121 corresponds to the pressing direction of the operating member 1110. It is provided in each of the front, rear, left and right around. Here, the magnetic sensor 1121 preferably uses an element whose electrical characteristics change with the change of the magnetic field. For example, the magnetic sensor 1121 may be any one of a Hall element, a semiconductor magnetoresistive element, a potato magnetoresistive element, or a GMR (Giant Magneto Resistive) element.

When no external force is applied to the operation member 1110, the fixing plate 1115 is always maintained at a constant distance between the lower surface of the fixing plate 1115 and the upper surface of the substrate 1120 so that the vertical displacement of the magnet 1117 does not occur. ) And the vertical elastic member 1130 is provided between the substrate 1120. The vertical elastic member 1130 is contracted by the external force applied to the pressing plate 1113 when the external force is applied to the pressing plate 1113 so as not to interfere with the vertical movement of the magnet 1117, and contracted when the external force is extinguished. The vertical elastic member 1130 is expanded to its original state to restore the magnet 1117 to the state before the vertical movement.

The vertical elastic member 1130 as described above may be any one of a coil spring or a leaf spring, and the vertical elastic member 1130 is disposed between the fixed plate 1115 and the substrate 1120 according to the pressing direction of the pressure plate 1113. Can be. That is, when the pressing direction of the pressure plate 1113 is four directions of front, rear, left and right, the vertical elastic members 1130 are provided in the front, rear, left, and right sides of the hollow part 1111.

In addition, a hole module housing 1150 for accommodating the substrate manipulation member 1110 may be provided under the substrate 1120.

In addition, the pressing plate 1113 and the fixing plate 1115 constituting the operation member 1110 may be made of a non-magnetic material that is not affected by the magnetic field of the magnet 1117, thereby improving the sensing capability of the magnetic sensor 1121. have. In other words, the magnet 1117 embedded in the fixing plate 1115 forms a magnetic field in a predetermined region, and the magnetic sensor 1121 detects the magnet 1117 as the magnet 1117 approaches or moves away from the magnetic sensor 1121. There is a change in the magnetic field. Accordingly, the pressing plate 1113 and the fixing plate 1115 are made of a non-magnetic material so that interference does not occur in the magnetic sensor 1121 for detecting the magnetic field of the magnet 1117. Here, the non-magnetic material may be any one of natural resin (such as rubber), synthetic resin (such as epoxy), and nonferrous metal.

The magnetic sensing module 1100 configured as described above is provided with the light sensing module 1200. Preferably, it is installed in the hollow part 1111 of the operation member 1110.

The light sensing module 1200 is installed in the hollow part 1111 of the operating member 1110 and independently means for operating a pointer or a cursor. The light sensing module 1200 is provided in the hollow part 1111 of the operating member 1110. An optical module housing 1210 installed; A cover plate 1220 installed on an upper portion of the optical module housing 1210 and in contact with a subject; A light source 1230 provided inside the optical module housing 1210 and radiating light to the cover plate 1220; The optical module housing 1210 includes an optical image sensor 1250 provided inside the optical module housing 1210 and configured to sense light reflected from a subject on the upper surface of the cover plate 1220 by the light source 1230. In addition, a sensor condenser lens 1240 is disposed between the cover plate 1220 and the optical image sensor 1250 to condense the light reflected from the cover plate 1220 to the optical image sensor 1250.

The optical module housing 1210 has a shape that corresponds to the hollow portion 1111 of the operation member 1110, the upper portion is an opening, the lower portion is a shape of a housing formed with a bottom surface, the optical module housing 1210 ) Is supported on an upper portion of the push switch 1140 provided on the substrate 1120.

The cover plate 1220 is a means by which a subject (a user's finger, etc.) is in direct contact with each other, and is formed of a transparent material that can pass light emitted from the light source, or only light having a specific wavelength emitted from the light source 1230. It can be formed of an optical plastic to pass through. In this embodiment, it is preferable to be made of an optical plastic that can transmit only the infrared wavelength band.

The light source 1230 is provided on the side or lower side of the cover plate 1220 as a means for irradiating light to the cover plate 1220, in this embodiment the light of the infrared wavelength band that is not recognized by the user's eyes A light emitting LED was used. Of course, the light source 1230 is not limited thereto, and various light sources 1230 capable of detecting light reflected by the light applied to the cover plate 1220 by the optical image sensor 1250 may be used.

An optical image sensor 1250 is provided on the bottom surface of the optical module housing 1210, that is, directly below the cover plate 1220, and is a means for detecting a change in light reflected from the cover plate 1220 to an object. The substrate is electrically connected to the substrate 1120 of the magnetic sensing module 1100.

The sensor condenser lens 1240 is installed between the cover plate 1220 and the optical image sensor 1250 to condense the light reflected by the subject from the cover plate 1220. .

An operation of the composite pointing device according to the first embodiment configured as described above will be described.

In the composite pointing device 1000 according to the first embodiment, the operation member 1110 and the substrate 1120 are initially parallel with each other by a vertical elastic member 1130 provided between the operation member 1110 and the substrate 1120. State is maintained. In addition, the optical module housing 1210 is supported by the operation member 1110 and the push switch 1140 to maintain the initial state in the hollow portion 1111 of the operation member 1110.

First, when the user wants a continuous movement or a rapid movement of the pointer or the cursor, when the user presses any one side of the operation member 1110 of the magnetic sensing module 1100, the operation member 1110 uses the hollow part 1111 as the center point. By tilting in the pressing direction (pressing direction), the vertical elastic member 1130 located in the pressing direction is compressed to compress the repulsive force. When the operation member 1110 is inclined, the magnet 1117 embedded in the operation member 1110 is moved in the vertical direction. At this time, the magnetic sensor 1121 mounted on the substrate 1120 detects a change in the magnetic field according to the vertical displacement of the magnet 1117, generates a predetermined output signal, and moves the position of the pointer or cursor on the screen by the output signal. Let's go. At this time, if the operation of pressing one side of the operation member 1110 continues continuously, the movement of the pointer or the cursor on the screen is made continuously.

On the contrary, when the force holding the operation member 1110 disappears, the vertical elastic member 1130, which was positioned and contracted in the pressing direction, is restored to its original state while pushing up the operation member 1110 in the vertical direction to operate the operation member 1110. ) And the substrate 1120 are kept in parallel initial state while the magnetic sensor 1121 outputs an initial value, until the pointer or cursor that has been moved on the screen returns to its original position or there is another output signal. I will wait.

In addition, when a detailed operation of the pointer or the cursor is desired, the user makes a finger contact with the cover plate 1220 of the light sensing module 1200 and then pushes the finger in a desired direction. Then, the angle of light irradiated from the light source 1230 to the cover plate 1220 is changed according to the movement of a finger, and the optical image sensor 1250 detects the change of the changed light to generate a predetermined output signal to generate a pointer or a pointer on the screen. The position of the cursor is moved by the output signal. In this case, the movement of the pointer or cursor on the screen can be finely adjusted by finely adjusting the motion of the finger.

Meanwhile, when the cover plate 1220 is pressed in the vertical direction, the optical module housing 1210 presses the push switch 1140. Accordingly, the push switch 1140 is turned on or off to generate a predetermined output signal to display the screen. A predetermined operation is performed at the pointer or cursor on the image.

Second Embodiment

3 is a perspective view showing a composite pointing device according to a second embodiment of the present invention, Figure 4 is a cross-sectional view showing a composite pointing device according to a second embodiment of the present invention.

Referring to the drawings, the composite pointing device 2000 according to the second embodiment includes a magnetic sensing module having a magnet 2117 embedded therein to sense a magnetic field change according to the displacement of the magnet 2117, as in the first embodiment. 2100); The light sensing module 2200 is installed in the magnetic sensing module 2100 and includes a light source 2230 to reflect the light emitted from the light source 2230 to the subject to sense movement displacement of the subject. Thus, the operation of the pointer or cursor by the magnetic sensing module 2100 and the operation of the pointer or cursor by the light sensing module 2200 may be implemented together. However, in the first embodiment, the light sensing module 2200 is provided almost independently of the magnetic sensing module 2100, whereas in the second embodiment, the light sensing module 2200 and the magnetic sensing module 2100 are combined. It is composed.

As in the first embodiment, the magnetic sensing module 2100 senses the movement displacement of the magnet 2117 by the magnetic sensor 2121 and moves the pointer or the cursor on the screen as an operation member 2110 and a substrate. 2120 and the vertical elastic member 2130 is configured.

Since the configurations of the operation member 2110, the substrate 2120, and the vertical elastic member 2130 are substantially similar to those of the first embodiment, overlapping descriptions thereof will be omitted.

However, unlike the first embodiment, the operation member 2110 is formed in a substantially disc shape as a means for changing the position of the magnet 2117 by a user's pressing operation because a magnet 2117 is built in the center thereof. The magnet 2117 is installed in the center area of the lower surface.

In addition, the light sensing module 2200 is integrally attached to the upper surface of the operation member 2110.

The light sensing module 2200 includes an optical module housing 2200, a cover plate 2220, a light source 2230, a sensor condenser lens 2240, and an optical image sensor 2250 like the first embodiment.

However, the optical module housing 2200 is integrally attached to the upper surface of the manipulation member 2110. At this time, the optical module housing 2200 has a pressing portion 2211 formed around the area where the cover plate 2220 is installed in the upper portion so that the user can easily press the operation member 2110. do. Of course, the optical module housing 2200 may be operated by the user directly pressing the cover plate 2220 without configuring the pressing portion 2211.

Referring to the operation of the composite pointing device 2000 according to the second embodiment configured as described above, the user presses 2211 of the optical module housing 2200 while maintaining the initial state as in the first embodiment. Alternatively, the position of the magnet 2117 is changed by pressing the cover plate 2220 so that the continuous operation of the pointer or cursor on the screen is performed.

Then, the finger is pushed in the desired direction while the finger is in contact with the cover plate 2220 to finely adjust the movement of the pointer or the cursor on the screen.

On the other hand, when the cover plate 2220 is pressed in the vertical direction, the lower surface or the magnet 2117 of the operation member 2110 presses the push switch 2140, and accordingly, the push switch 2140 is turned on or off while being predetermined. An output signal is generated to perform a predetermined operation on a pointer or cursor on the screen.

[Third Embodiment]

5 is a cross-sectional view showing a composite pointing device according to a third embodiment of the present invention.

Referring to the drawings, the composite pointing device 3000 according to the third embodiment includes a magnetic sensing module having a magnet 3117 embedded therein to sense a magnetic field change according to the displacement of the magnet 3117. 3100); The light sensing module 3200 is installed in the magnetic sensing module 3100 and includes a light source 3230 to reflect the light emitted from the light source 3230 to the subject to sense movement displacement of the subject. Thus, the operation of the pointer or cursor by the magnetic sensing module 3100 and the operation of the pointer or cursor by the light sensing module 3200 may be implemented together.

Since the configurations of the magnetic sensing module 3100 and the light sensing module 3200 are almost similar to those of the second embodiment, redundant descriptions thereof will be omitted.

However, in the second embodiment, the operation member 2110 moves in the vertical direction to detect the vertical displacement in the magnetic sensor 2121, whereas in the third embodiment, the operation member 3110 is moved in the horizontal direction to move the magnetic sensor. At 3121, the horizontal displacement is detected.

Accordingly, when no external force is applied to the manipulation member 3110 between the manipulation member 3110 and the substrate 3120, the manipulation does not occur in a horizontal direction of the magnet 3117 built into the manipulation member 3110. A horizontal elastic member 4130 is provided around the member 3110 or under the operating member 3110.

The horizontal elastic member 4130 as described above may be any one of a silicon rubber having a shape such as a ring spring, a spiral, or a wave. The horizontal elastic member 3130 may be implemented in various ways to provide a horizontal restoring force when the operation member 3110 is moved in the horizontal direction.

[Fourth Embodiment]

6 is a cross-sectional view showing a composite pointing device according to a fourth embodiment of the present invention.

Referring to the drawings, the composite pointing device 4000 according to the fourth exemplary embodiment has a magnetic sensing module 4100 in which a magnet is largely sensed so as to sense a magnetic field change according to the displacement of the magnet 4117, similarly to the first exemplary embodiment. and; The light sensing module 4200 is installed in the magnetic sensing module 4100 and includes a light source 4230 to reflect light emitted from the light source 4230 to the subject to sense movement displacement of the subject. Thus, the operation of the pointer or cursor by the magnetic sensing module 4100 and the operation of the pointer or cursor by the light sensing module can be implemented together.

The magnetic sensing module 4100 is a means for detecting the movement displacement of the magnet 4117 by the magnetic sensor 4121 to move the pointer or the cursor on the screen. A hollow portion 4111 is formed at the center thereof, An operation member 4110 in which a magnet 4117 is embedded; A substrate 4120 provided below the operation member 4110 and mounted with a plurality of magnetic sensors 4121 detecting a magnetic field change according to the displacement of the magnet 4117; A horizontal elastic member 4130 is provided around or below the operation member 4110 to provide a restoring force according to the horizontal movement of the operation member 4110.

Since the operation member 4110, the substrate 4120, and the horizontal elastic member 4130 are similar to the configurations described in the first and third embodiments, redundant descriptions thereof will be omitted.

The light sensing module 4200 is installed on the hollow portion 4111 and the substrate 4120 of the manipulation member 4110 to independently operate a pointer or a cursor, and the hollow portion of the manipulation member 4110. A cover plate 4220 installed at 4111 and in contact with the subject; A light source 4230 mounted on the substrate 4120 to irradiate light to the cover plate 4220; And an optical image sensor 4250 mounted on the substrate 4120 to sense light reflected by the light source 4230 to the subject on the upper surface of the cover plate 4220. At this time, the cover plate 4220 and the operation member 4110 are preferably attached to each other to be moved in the horizontal direction together.

In addition, a light source condenser lens 4260 is disposed between the light source 4230 and the cover plate 4220 to condense the light emitted from the light source 4230 to the cover plate 4220. In addition, a sensor condenser lens disposed between the cover plate 4220 and the optical image sensor 4250 on the substrate 4120 to collect light reflected from the cover plate 4220 to the optical image sensor 4250. 4240 is provided.

Since the configurations of the cover plate 4220, the light source 4230, the optical image sensor 4250, and the sensor condenser lens 4240 are almost similar to those described in the first to third embodiments, the descriptions thereof will not be repeated. Do it. However, in the first to third embodiments, one LED is used as the light sources 1230, 2230, and 3330. However, in the present embodiment, at least one LED, for example, four LEDs are arranged in a circular shape.

Accordingly, a light source condenser lens 4260 that concentrates the light emitted from the light source 4230 to the cover plate 4220 is disposed above the light source 4230.

The light source condenser lens 4260 is a circular band-shaped lens disposed on the light source 4230, and collects light so that light is not dispersed when the light emitted from the light source 4230 is irradiated onto the cover plate 4220. Play a role.

[Fifth Embodiment]

7 is a cross-sectional view showing a composite pointing device according to a fifth embodiment of the present invention.

Referring to the drawing, the composite pointing device 5000 according to the fifth embodiment has a magnetic sensing module that senses a magnetic field change according to a displacement of the magnet 5117 by having a magnet 5117 embedded therein as in the fourth embodiment. 5100 and; The light sensing module 5200 is installed in the magnetic sensing module 5100 and includes a light source and reflects light emitted from the light source 5230 to the subject to sense a movement displacement of the subject. Thus, the operation of the pointer or cursor by the magnetic sensing module 5100 and the operation of the pointer or cursor by the light sensing module 5200 may be implemented together.

The magnetic sensing module 5100 has a hollow part 5111 formed at the center thereof, and an operation member 5110 in which the magnet 5117 is embedded in the hollow part 5111; A substrate 5120 provided below the operation member 5110 and mounted with a plurality of magnetic sensors 5121 for detecting a magnetic field change according to the displacement of the magnet 5117; A horizontal elastic member 5130 is provided around or below the manipulation member 5110 to provide a restoring force according to the horizontal movement of the manipulation member 5110.

At this time, the magnet 5117 is irradiated from the light source 5230 of the light sensing module 5200 using a transparent plastic magnet is irradiated to the cover plate 5220 through the magnet, and again passes through the magnet 5117 It is detected by the optical image sensor 5250.

Accordingly, the magnet 5117 is preferably located directly below the cover plate 5220.

Since the configuration of the light sensing module 5200 is similar to that of the fourth embodiment, overlapping description thereof will be omitted.

[Sixth Embodiment]

8 is a cross-sectional view showing a composite pointing device according to a sixth embodiment of the present invention.

Referring to the drawings, the composite pointing device 6000 according to the sixth embodiment has a magnet 6171 embedded therein, as in the fourth and fifth embodiments, to sense the magnetic field change according to the displacement of the magnet 6171. A magnetic sensing module 6100; The light sensing module 6200 is installed in the magnetic sensing module 6100 and includes a light source 6230 to reflect the light emitted from the light source 6230 to the subject to sense the movement displacement of the subject. Thus, the operation of the pointer or cursor by the magnetic sensing module 6100 and the operation of the pointer or cursor by the light sensing module 6200 may be implemented together.

However, between the cover plate 6220 constituting the light sensing module 6200 and the sensor condenser lens 6240 and between the sensor condenser lens 6240 and the optical image sensor 6250 in order to slim down the composite pointing device 6000. At least one of the reflection member 6270 is provided to change the movement path of the light.

The reflective member 6270 may invert the angle of the light reflected by the first reflector 6161 and the first reflector 6627 to invert the angle of the light reflected by the subject on the cover plate 6220, thereby providing an optical image sensor 6250. And a second reflecting plate 6262 to be irradiated. Of course, the configuration of the reflective member 6270 is not limited to the exemplary embodiment, and the light sensing module 6200 may be variously changed through proper design of the reflector to reduce the thickness.

Meanwhile, the complex pointing device as described above may be applied to a portable terminal and implemented. In the following description, a portable telephone is described as an example, but the present invention is not limited thereto and may be used in various types of portable terminals such as a digital camera, a camcorder, an MP3, a PMP, a PDA, a GPS, a laptop, a game machine, a remote controller, an electronic dictionary, and the like. have. That is, it includes a control unit for processing a predetermined signal (data) according to the function of each terminal, a screen display unit for displaying an image, and a pointing device for controlling the movement of a pointer and a cursor of the screen display unit. The input device may be any one of the first to sixth embodiments described above.

The portable telephone is connected to an antenna and manages transmission and reception of voice data and control data, and converts the voice data received by the wireless communication unit into an audible sound and outputs it through the speaker unit, or data received from the microphone unit A voice processing unit for outputting to a wireless unit, a screen display unit having a cursor to display an image, a key input unit for inputting data to the screen display unit through a keypad, a pointing device for controlling the movement of a pointer and a cursor on the screen display unit, and the respective units And a control unit for controlling the operation of the device.

The pointing device applied to the portable telephone includes: a magnetic sensing module having a magnet embedded therein, the magnetic sensing module sensing a magnetic field change according to a displacement of the magnet; And a light sensing module installed in the magnetic sensing module and configured to reflect a light emitted from the light source to the subject to sense movement displacement of the subject.

The present invention is not limited to the above-described embodiments, but may be implemented in various forms. That is, the above embodiments are provided to make the disclosure of the present invention complete and to fully inform those skilled in the art of the scope of the present invention, and the scope of the present invention should be understood by the claims of the present application. .

1000,2000,3000,4000,5000,6000: complex pointing devices
1100: magnetic sensing module 1110: operation member
1111: hollow part 1113: pressure plate
1115: fixing plate 1117: magnet
1120: substrate 1121: magnetic sensor
1130: vertical elastic member 1140: push switch
1150: hall module housing 1200: light sensing module
1210: optical module housing 1220: cover plate
1230: light source 1240: sensor condenser lens
1250: optical image sensor

Claims (15)

A magnetic sensing module having a magnet embedded therein, the magnetic sensing module sensing a magnetic field change according to a displacement of the magnet;
And a light sensing module installed in the magnetic sensing module and configured to sense a movement displacement of the subject by reflecting light emitted from the light source to the subject. The method according to claim 1,
The magnetic sensing module includes an operation member in which a magnet is embedded,
The light sensing module includes at least a cover plate in contact with the subject,
The cover plate is a composite pointing device provided on the operation member. The method according to claim 2,
The magnetic sensing module has a hollow portion in the center, and includes an operation member in which the magnet is embedded at the edge,
The light sensing module
An optical module housing having an upper opening and installed in the hollow of the operation member;
A cover plate installed on the optical module housing and in contact with the subject;
A light source provided inside the optical module housing and irradiating light to the cover plate;
And an optical image sensor provided inside the optical module housing and configured to sense light reflected from a subject on the upper surface of the cover plate by being irradiated to the light source. The method according to claim 2,
The magnetic sensing module includes an operation member in which the magnet is built in the center,
The light sensing module
An optical module housing having an upper portion opened and installed on an upper surface of the operation member;
A cover plate installed on the optical module housing and in contact with the subject;
A light source provided inside the optical module housing and irradiating light to the cover plate;
And an optical image sensor provided inside the optical module housing and configured to sense light reflected from a subject on the upper surface of the cover plate by being irradiated to the light source. The method according to claim 2,
The magnetic sensing module
A hollow part formed at a center thereof, and an operation member having the magnet embedded at an edge thereof;
A substrate is provided below the operation member, and includes a substrate on which a plurality of magnetic sensors for detecting a magnetic field change according to the displacement of the magnet are mounted.
The light sensing module
A cover plate installed in the hollow portion of the operation member and in contact with the subject;
A light source mounted on the substrate and irradiating light to the cover plate;
And an optical image sensor mounted on the substrate, the optical image sensor irradiating the light source to sense light reflected from a subject on the upper surface of the cover plate. The method according to claim 2,
The magnetic sensing module
A hollow part formed at a center thereof, and an operation member having the magnet embedded in the hollow part;
A substrate is provided below the operation member, and includes a substrate on which a plurality of magnetic sensors for detecting a magnetic field change according to the displacement of the magnet are mounted.
The light sensing module
A cover plate disposed on the magnet of the manipulation member and in contact with the subject;
A light source mounted on the substrate and irradiating light to the cover plate;
And an optical image sensor mounted on the substrate, the optical image sensor irradiating the light source to sense light reflected from a subject on the upper surface of the cover plate. The method of claim 6,
And the magnet is a transparent plastic magnet. The method according to any one of claims 3 to 6,
The magnetic sensing module
A substrate provided below the operation member and mounted with a plurality of magnetic sensors for detecting a magnetic field change according to the displacement of the magnet;
And a resilient member provided on the operating member to provide a restoring force according to the movement of the operating member. The method according to any one of claims 3 to 6,
The magnetic sensing module includes a push switch installed on the substrate located directly below the center area of the manipulation member. The method according to any one of claims 3 to 6,
And a sensor condenser lens configured to condense the light reflected from the cover plate to the optical image sensor between the cover plate and the optical image sensor. The method according to claim 4 or 6,
A composite pointing device having a pressing portion formed around the cover plate at an upper portion of the optical module housing. The method according to claim 5 or 6,
And a light source condenser lens for condensing the light emitted from the light source to the cover plate between the light source and the cover plate. The method according to claim 5 or 6,
And at least one of the cover plate and the sensor condenser lens and between the sensor condenser lens and the optical image sensor is provided with a reflective member for changing a movement path of light. A controller for processing data;
A screen display for displaying an image;
A pointing device for supplying a coordinate signal for moving a pointer or a cursor in the screen display unit;
The pointing device includes a magnetic sensing module having a magnet built therein to sense a magnetic field change according to a displacement of the magnet; And a light sensing module installed in the magnetic sensing module and configured to sense a movement displacement of the subject by reflecting light emitted from the light source to the subject. The method according to claim 14,
The magnetic sensing module includes an operation member in which a magnet is embedded,
The light sensing module includes at least a cover plate in contact with the subject,
The cover plate is provided in the operation member.

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