KR20100036404A - Optical joystick and mobile phone having it - Google Patents

Optical joystick and mobile phone having it Download PDF

Info

Publication number
KR20100036404A
KR20100036404A KR1020080095632A KR20080095632A KR20100036404A KR 20100036404 A KR20100036404 A KR 20100036404A KR 1020080095632 A KR1020080095632 A KR 1020080095632A KR 20080095632 A KR20080095632 A KR 20080095632A KR 20100036404 A KR20100036404 A KR 20100036404A
Authority
KR
South Korea
Prior art keywords
light
optical
joystick
cover plate
transparent member
Prior art date
Application number
KR1020080095632A
Other languages
Korean (ko)
Inventor
안건준
김재동
박상일
Original Assignee
크루셜텍 (주)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 크루셜텍 (주) filed Critical 크루셜텍 (주)
Priority to KR1020080095632A priority Critical patent/KR20100036404A/en
Publication of KR20100036404A publication Critical patent/KR20100036404A/en

Links

Images

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1684—Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675
    • G06F1/169—Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675 the I/O peripheral being an integrated pointing device, e.g. trackball in the palm rest area, mini-joystick integrated between keyboard keys, touch pads or touch stripes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
    • G06F3/03547—Touch pads, in which fingers can move on a surface
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
    • G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/96—Touch switches
    • H03K17/9627—Optical touch switches
    • H03K17/9631—Optical touch switches using a light source as part of the switch
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/23—Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof
    • H04M1/233—Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof including a pointing device, e.g. roller key, track ball, rocker switch or joystick
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
    • H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
    • H03K2217/96—Touch switches
    • H03K2217/96042—Touch switches with illumination

Abstract

PURPOSE: An optical joystick and a mobile phone having the same are provided to satisfy the desire of consumers by supplying esthetic feeling through an illumination effect. CONSTITUTION: A light source(10) emits an infrared ray, and a cover plate contacts a target object by being illuminated through the light source. A holder is coupled to the cover plate and placed inside the cover plate. An optical member refracts and condenses the light reflected from the target object, and is installed inside the holder. A light reception unit detects the condensed light. The cover plate includes an opaque member(27) and a transparent member(22), and the transparent member contains an illumination member(30).

Description

Optical joystick and mobile terminal equipped with optical joystick {OPTICAL JOYSTICK AND MOBILE PHONE HAVING IT}

The present invention relates to a portable terminal provided with an optical joystick and an optical joystick that provide an aesthetic sense using an illumination effect.

In general, personal digital assistants such as mobile phones and PDAs (Personal Digital Assistants) adopt a user interface using a keypad, and have a keypad composed of a plurality of buttons and direction buttons for inputting numbers and characters.

In recent years, as wireless Internet services such as WIBRO (Wireless Broadband) services have been commercialized, a Windows operating system supporting a Graphical User Interface (GUI) has been adopted for personal portable terminals.

In addition, with the development of technology, personal portable terminals have various additional services, and a Windows operating system supporting a GUI is also adopted for convenient operation of the various additional services.

As described above, the operating system of the GUI is adopted as the user interface of the personal portable terminal, and in the related art, since the development of an input device suitable for the personal portable terminal is urgently required, the mono system selects sequentially from the display screen of the portable terminal such as a keypad. Touch keys, joysticks, and optical pointing devices have emerged as input devices of the portable terminal having improved.

In the input device, the optical joystick provides not only operability than other input devices but also an ultra-slim that can be mounted in a slim portable terminal.

The prior art in the optical joystick is Korean Patent No. 10-0636412 "personal portable terminal including an ultra-slim optical pointing device and an ultra-slim optical joystick". The present invention provides an optical pointing device (the same article as the optical joystick) capable of providing a slim thickness and a depth of focus sufficiently by horizontally changing the optical path of light reflected vertically from a subject.

In the light joystick, as shown in FIG. 1, the light collecting means 2 is installed inside the holder 1, and the image sensor 3 is mounted below the light collecting means 2 so that the light emitted from the infrared light source 4 is absorbed. After passing through the cover plate 5 and hitting the subject, the light is collected through the light collecting means 2. The light thus formed is transmitted to the surface of the image sensor 3.

The image sensor 3 senses the amount of light and simultaneously captures the light, calculates the displacement, and transmits the information to a microcomputer (not shown) such as a mobile terminal to generate a cursor on the display screen.

However, the optical joystick operated on the same principle can provide the advantage that the cursor can be moved in the same way as the movement of the subject on the display screen of the portable terminal. However, due to the structural limitation of the optical joystick itself, Feelings are deteriorating and they are not meeting consumer needs.

That is, in the conventional light joystick, since the light emitted from the light source uses an infrared LED invisible to the user's eyes, when the separate light is used, the light emitted from the separate light disturbs the infrared light source, thereby degrading operability.

Therefore, the conventional optical joystick is not able to satisfy the needs of consumers enough to provide aesthetics only by the structural change of a simple cover plate without using a separate light source.

The present invention has been made in view of the above problems, it is possible to provide aesthetics by using a separate light, while maintaining the operability of the optical joystick itself by greatly improving the aesthetics of the entire mobile terminal through the increase in aesthetics It is an object of the present invention to provide a portable terminal equipped with an optical joystick and an optical joystick.

The portable terminal equipped with the optical joystick and the optical joystick of the present invention can provide aesthetics by using a separate light while maintaining the operability of the optical joystick itself, thereby greatly improving the merchandise by increasing the aesthetics of the entire portable terminal. It can be effected.

In order to achieve the above object effectively, the present invention provides a light source for emitting infrared light; A cover plate illuminated by the infrared light source and in contact with a subject; A holder coupled to the cover plate and having an accommodation space therein; An optical member installed inside the holder and refracting and condensing light reflected through a subject; In the light joystick composed of a light receiving unit for detecting the light collected through the optical member: The cover plate is a transparent member through which both visible light and infrared light is transmitted, and is formed in close contact with the inside of the transparent member to block the flow of visible light It includes an opaque member, the transparent member is characterized in that the illumination member for emitting visible light and infrared light toward the upper side.

The transparent member may further include an external light blocking unit that blocks visible light and infrared rays introduced from the outside.

In addition, the lighting member is installed in any one of the opaque member or the transparent member is characterized in that for emitting light.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a schematic cross-sectional view of an optical joystick according to an embodiment of the present invention, Figure 3 is a functional state diagram of the optical joystick according to an embodiment of the present invention, Figure 4 is an optical joystick according to an embodiment of the present invention in a portable terminal A perspective view showing the installed state.

As shown, the optical joystick 100 according to the embodiment of the present invention is installed on the cover plate 20 and the cover plate 20, the light source 10 and the light of the light source 10 that emits infrared light is illuminated; The lighting member 30 and the holder 40 coupled to the cover plate 30 and the optical member 50 accommodated in the holder 40 and the light receiving unit 60 for detecting the movement of the subject.

The light source 10 uses at least one infrared LED. The reason for using the infrared LED is to prevent eye fatigue from being generated by the light source even if the user's eyes are exposed to the light source for a long time.

The light source 10 is installed on the circumferential surface of the holder 40. However, it does not necessarily have to be installed on the circumferential surface of the holder 40. That is, the light source 10 may be installed directly on the PCB in addition to the circumferential surface of the holder 40 as a position for irradiating light best among the circumferential surfaces of the holder 40.

In the holder 40 is provided an optical member that refracts the path of light.

The optical member 50 is composed of a condenser lens 54 provided between a pair of prisms 52 and a pair of prisms 52. The pair of prisms 52 and the condenser lens 54 are installed on a path of light that is reflected from the object in the direction of travel of the light emitted from the light source 10.

In addition, a light receiving unit 60 is installed below the holder 40 to detect light refracted and collected through the pair of prisms 52 and the condenser lens 54. The light receiving unit 60 calculates the detected light information as a displacement value.

In addition, the holder 40 is illuminated by the infrared light source 10, and is coupled to the cover plate 20 provided with the object contact surface.

The cover plate 20 is intimately coupled to the inside of the transparent member 22 and the transparent member 22 through which both infrared and visible light are transmitted, and includes an opaque member 27 that blocks visible light and transmits only infrared light.

The transparent member 22 has an open bottom surface and has a receiving space therein. The bottom surface of the transparent member 22 is wider than the upper side, so that the upper portion and the lower portion form a step when looking at the overall shape.

In addition, the circumferential surface of the transparent member 22 is provided with an external light blocking portion 23 to block visible light and infrared rays introduced from the outside. Here, the external light shield 23 may be applied to any one of coating and tape forms for blocking the inflow of light.

In addition, the opaque member 27 is tightly coupled to the inside of the transparent member 22. These may be separately prepared and combined, but it is preferable that the double injection to simplify the manufacturing process.

The opaque member 27 blocks the transmission of visible light and allows the flow of infrared rays. In addition, a shielding tape 28 is attached to the upper surface of the opaque member 27 to block both infrared and visible light except for a predetermined portion. Here, the upper surface of the opaque member 27 may be printed in the same area as the shielding tape 28 instead of the shielding tape 28.

On the other hand, the lower side of the transparent member 22 or the inner side of the opaque member 27 is provided with an illumination member 30 for emitting visible light and infrared radiation upwards. At least one LED may be used as the lighting member 30, and a plurality of lighting members 30 may be disposed in different colors.

Hereinafter, an operation state of an optical joystick and a portable terminal equipped with an optical joystick according to an embodiment of the present invention will be described.

In the state where the optical joystick 100 is installed in the portable terminal 200, the light of the lighting member 30 emits light toward the upper side of the transparent member. At this time, the infrared rays of the light of the lighting member 30 passes through the opaque member 27 as it is, visible light is partially reflected from the outer surface of the opaque member 27 or radiated upward.

At this time, when a pattern such as letters or numbers is printed on the upper surface of the transparent member 22, the light moved to the upper side of the transparent member 22 is radiated to the outside through the remaining portion except for the design aesthetics by the illumination light You can increase your senses.

In this state, when the user's subject P contacts the cover plate 20, the infrared rays emitted from the light source 10 pass through the transparent member 22 and the portion where the shielding tape 28 of the opaque member is not attached. While hitting the subject (P) of the user and reflected in the vertical direction.

The reflected light is changed through the pair of prisms 52 and the condenser lens 54, which are optical members 50, and the refractive direction of the light is condensed and transmitted to the light receiver 60.

The light receiver 60 detects the transmitted light and transmits the detected data to the microcomputer (not shown) of the portable terminal 200.

The microcomputer generates a cursor on the display screen 210 based on the received data.

As such, the light emitted from the lighting member 30 may increase the aesthetics of the entire outer surface of the cover plate 20 without interfering with the path of the light emitted from the light source 10, thereby increasing the aesthetics of the entire mobile terminal. You can do it.

The optical joystick and the portable terminal provided with the optical joystick according to the embodiment of the present invention have been described above, but the present invention is not limited thereto, and those skilled in the art can of course apply and modify them.

1 is a schematic diagram schematically showing a conventional light joystick;

2 is a schematic cross-sectional view of an optical joystick according to an embodiment of the present invention.

3 is an operational state diagram of the optical joystick according to the embodiment of the present invention.

4 is a perspective view showing a state in which an optical joystick according to an embodiment of the present invention is installed in a portable terminal.

<Explanation of symbols for each major part of drawing>

10: light source 20: cover plate

22: transparent member 23: external light shield

27: opaque member 28: shielding tape

30: lighting member 40: holder

50: optical member 52: a pair of prisms

54: condenser lens 60: light receiver

100: light joystick 200: mobile terminal

Claims (5)

A light source emitting infrared light; A cover plate illuminated by the infrared light source and in contact with a subject; A holder coupled to the cover plate and having an accommodation space therein; An optical member installed inside the holder and refracting and condensing light reflected through a subject; In the light joystick composed of a light receiving unit for detecting the light collected through the optical member: The cover plate includes a transparent member through which both visible and infrared rays are transmitted, and an opaque member configured to be in close contact with the inside of the transparent member and to block inflow and outflow of visible light. The transparent member is an optical joystick, characterized in that the illumination member for emitting visible light and infrared light toward the upper side. The method of claim 1, The transparent member is an optical joystick further comprises an external light blocking unit for blocking the visible light and infrared rays flowing from the outside. The method of claim 1, The illumination member is installed in any one of the opaque member or the transparent member inside the light joystick, characterized in that for emitting light. The method of claim 1, Optical joystick, characterized in that the shielding tape is attached to the inner upper surface of the opaque member is removed except a predetermined portion. A portable terminal comprising the optical joystick of claim 1.
KR1020080095632A 2008-09-30 2008-09-30 Optical joystick and mobile phone having it KR20100036404A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020080095632A KR20100036404A (en) 2008-09-30 2008-09-30 Optical joystick and mobile phone having it

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020080095632A KR20100036404A (en) 2008-09-30 2008-09-30 Optical joystick and mobile phone having it

Publications (1)

Publication Number Publication Date
KR20100036404A true KR20100036404A (en) 2010-04-08

Family

ID=42213901

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020080095632A KR20100036404A (en) 2008-09-30 2008-09-30 Optical joystick and mobile phone having it

Country Status (1)

Country Link
KR (1) KR20100036404A (en)

Similar Documents

Publication Publication Date Title
JP2009176271A (en) Optical joy stick and portable electronic equipment which includes it
JP2008507787A (en) Optical pointing device and personal portable terminal
EP1805581A1 (en) Ultra thin optical joystick and personal portable device having ultra thin optical joystick
KR101232596B1 (en) Pointing device of laminating structure and portable terminal using the same
JP2013045451A (en) Motion sensing switch
KR100636412B1 (en) Ultra thin optical joystick and personal portable device having an ultra thin optical joystick
KR100970129B1 (en) Optical pointing device and operation method
US20110310072A1 (en) Display panel and display device
KR101388697B1 (en) Lens and Optical Navigation Module having the same
KR101044145B1 (en) Optical pointing device
KR20100036404A (en) Optical joystick and mobile phone having it
KR101167061B1 (en) Optical joystick and mobile device having it
KR100991360B1 (en) Optical joystick and portable device having optical joystick
KR101021072B1 (en) Optical Joy Stick and Portable Electronic Device Having the Same
KR20100036406A (en) Optical joystick and portable device having it
KR101092855B1 (en) Optical joystick and portable device having it
KR101148389B1 (en) Laser Navigation Module
KR101151230B1 (en) Ultra slim optical joystick and mobile terminal having it
KR101092857B1 (en) Ultra slim optical joystick
KR20100035235A (en) Optical joystick and portable device having it
KR100816095B1 (en) Optical inputting apparatus and mobile terminal having the same
KR20090102292A (en) Optical joystick module of portable device
KR20100138093A (en) Ultra slim optical joystick and mobile terminal having it
KR20100008060A (en) Optical joystick and portable electronic device having it
KR20090108852A (en) Optical joystick module

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E90F Notification of reason for final refusal
E601 Decision to refuse application