KR101379235B1 - Track pad and electronic equipment having the same - Google Patents

Track pad and electronic equipment having the same Download PDF

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Publication number
KR101379235B1
KR101379235B1 KR1020120110758A KR20120110758A KR101379235B1 KR 101379235 B1 KR101379235 B1 KR 101379235B1 KR 1020120110758 A KR1020120110758 A KR 1020120110758A KR 20120110758 A KR20120110758 A KR 20120110758A KR 101379235 B1 KR101379235 B1 KR 101379235B1
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KR
South Korea
Prior art keywords
cover glass
track pad
main body
present
sensor
Prior art date
Application number
KR1020120110758A
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Korean (ko)
Inventor
손동남
김성근
Original Assignee
크루셜텍 (주)
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Publication date
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Priority to KR1020120110758A priority Critical patent/KR101379235B1/en
Application granted granted Critical
Publication of KR101379235B1 publication Critical patent/KR101379235B1/en

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    • 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
    • G06F1/1626—Constructional details or arrangements for portable computers with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
    • 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

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Position Input By Displaying (AREA)

Abstract

An embodiment of the present invention provides a track pad and an electronic device having the same, which improves the unity with the screen of the display device, expresses various colors, and detects fingerprint and finger movement. The track pad according to the embodiment of the present invention includes a main body, a sensor, and a cover glass. Here, the main body forms a track pad body having fingerprint sensing and finger movement sensing, and an upper portion thereof is opened and a mounting portion is formed inside. The sensor is mounted on the mounting part. And the cover glass is provided in the upper part of a main body part, and covers a main body part.

Description

TRACK PAD AND ELECTRONIC EQUIPMENT HAVING THE SAME}

The present invention relates to a track pad and an electronic device having the same, and more particularly, to a track pad capable of sensing a movement of a fingerprint and a finger and an electronic device having the same.

Generally, a pointing device is used for electronic devices such as mobile terminals, personal digital assistants (PDAs), and tablet PCs.

Such a pointing device detects a signal that changes according to the movement of a finger, which is a subject, so that a pointer such as a cursor can be moved or a user can input desired information or a command.

On the other hand, fingerprint recognition technology is also used to go through the user registration and authentication procedures to prevent security accidents through the protection of data stored in such electronic devices.

Recently, a device such as a biometric track pad (BTP), which has a function of detecting a finger fingerprint and a navigation pointing function for performing a pointer operation, has also been used.

1 is an exemplary view schematically showing an electronic device having a conventional track pad, and FIG. 2 is an exemplary cross-sectional view taken along the line A-A of FIG. 1.

As shown in FIG. 1 and FIG. 2, the conventional track pad 410 may include a bezel 411 and a detector 412.

The track pad 410 may be provided in a mounting groove 441 formed in the cover glass 440 of the electronic device.

Therefore, since the upper surface of the sensing unit 412 is provided independently of the cover glass 440 of the display device 480, the cover glass 440 constituting the upper surface of the sensing unit 412 and the screen of the display device 480. There is a problem that the sense of unity with the fall.

In addition, the bezel 411 is provided separately from the sensing unit 412 to form an edge of the sensing unit 412, mainly made of a metal material.

Therefore, the bezel 411 can not only represent the color as it is manufactured, it is impossible to express a variety of colors, there is a limit in providing a design aesthetic that is important recently.

In addition, the user may not provide a high advantage in identifying the position of the track pad 410 at night or in a dark place.

In order to solve the above problems, the technical problem to be achieved by the present invention is to increase the sense of unity with the screen of the display device, it is possible to express a variety of colors, having a track pad that can detect the movement of the fingerprint and finger and To provide an electronic device.

In order to achieve the above technical problem, an embodiment of the present invention is a track pad having a fingerprint detection function and a finger movement detection function, forming a body of the track pad, the upper portion is open and the mounting portion is formed on the inside ; A sensor mounted on the mounting unit; And it is provided on the top of the main body to provide a track pad comprising a cover glass covering the main body.

Here, the display electrode may be patterned on the cover glass.

The display electrode may be patterned at a portion other than a portion where the sensor is vertically projected onto the cover glass.

In addition, the surface of the body portion may be provided with a conductive portion electrically connected to the display electrode.

The conductive part and the sensor may be electrically connected by a first connection line.

The conductive part may include a light emitting part electrically connected to the conductive part by a second connection line.

A light diffusing color film may be attached to the bottom surface of the cover glass.

In addition, a color film may be provided on the bottom surface of the cover glass.

The cover glass may be integrally formed with the cover glass of the display device.

In addition, an embodiment of the present invention is a track pad having a fingerprint detection and finger movement detection function, the body portion forming the body of the track pad, the top is open and the mounting portion is formed on the inside; A sensor mounted on the mounting unit; The present invention provides an electronic device including a display device provided on an upper portion of the main body and having a track pad including a cover glass covering the main body.

According to the present invention, it is possible to implement a track pad whose upper surface is made of a cover glass, and by integrating the cover glass of the track pad with the cover glass of the display device, it is possible to increase the sense of unity without dissimilarity with the display device.

In addition, according to the present invention, the shine function can be implemented by emitting light inside the track pad to emit light, and help the user to easily recognize the position of the track pad. It can provide aesthetics.

In addition, according to the present invention, the color film is attached to the cover glass or ink printing is performed, it is possible to implement the color on the track pad.

It should be understood that the effects of the present invention are not limited to the above effects and include all effects that can be deduced from the detailed description of the present invention or the configuration of the invention described in the claims.

1 is an exemplary view schematically showing an electronic device having a conventional track pad.
FIG. 2 is a cross-sectional view taken along line AA of FIG. 1.
3 is an exploded perspective view showing a track pad according to a first embodiment of the present invention.
4 is a cross-sectional view illustrating a track pad according to a first embodiment of the present invention.
5 is a planar view showing a track pad according to a first embodiment of the present invention.
6 is a cross-sectional view illustrating a track pad according to a second embodiment of the present invention.
7 is a planar view showing a track pad according to a second embodiment of the present invention.
8 is a cross-sectional view illustrating a track pad according to a third embodiment of the present invention.
9 is a plan view showing a track pad according to a third embodiment of the present invention.
10 is a plan view showing an electronic device having a track pad according to a fourth embodiment of the present invention.
FIG. 11 is a cross-sectional view illustrating the BB line of FIG. 10.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when a part is referred to as being "connected" to another part, it includes not only "directly connected" but also "indirectly connected" . Also, when an element is referred to as "comprising ", it means that it can include other elements, not excluding other elements unless specifically stated otherwise.

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

3 is an exploded perspective view showing a track pad according to a first embodiment of the present invention, Figure 4 is a cross-sectional view showing a track pad according to a first embodiment of the present invention, Figure 5 is a first embodiment of the present invention A plan view showing a track pad according to an example.

As shown in FIGS. 3 to 5, the track pad 10 may include a main body 20, a sensor 30, and a cover glass 40.

In the present invention, a track pad detects an input signal or static electricity according to a movement of a user's finger, etc., which is a subject, and moves a pointer such as a cursor based on the movement, and inputs information or a command desired by the user. A dome switch including a receiving input device and used to select a pointed menu or icon may be installed together.

Here, the main body 20 may form the body of the track pad 10, an upper portion thereof may be opened, and a mounting portion 21 may be formed inside.

More specifically, the main body 20 may have a side wall 22 along the circumference, the mounting portion 21 may be formed as an inner space surrounded by the side wall 22, the upper portion of the mounting portion 21 Can be opened.

In addition, the main body 20 may be made of injection or mold, and may be made of an epoxy mold compound (EMC) or a polyphthalamide (PPA).

In addition, a lead frame 70 may be attached to the lower portion of the main body 20.

Here, the main body 20 may be integrally formed with the lead frame 70 by a method of injecting resin onto the lead frame 70.

The main body 20 and the lead frame 70 may be coupled by surface mounting technology (SMT), and the lead frame 70 may be provided with an SMT pad 71. .

In addition, the sensor 30 may be mounted on the mounting portion 21. More specifically, the sensor 30 may be mounted on the base surface 24 of the mounting portion 21, and may be mounted through epoxy bonding.

Here, the sensor 30 may have a sensing area in which pixels are arranged in an array form.

The sensor 30 may find the difference in capacitance due to the height difference according to the shape of the peak and the valley of the fingerprint of the finger, and generate a fingerprint image by scanning an image of the fingerprint as the finger moves.

In addition, the sensor 30 may separately store information on a feature point of the fingerprint (for example, a portion where the fingerprint is divided, such as a 'Y' point), and compare the feature points to detect whether the fingerprint matches. .

In this case, the time required for fingerprint detection can be shortened, and miniaturization can be achieved through the simplification of the processor, so that the mountability to the mobile device can be improved.

In addition, the sensor 30 may track not only the function of fingerprint detection but also the presence or absence of a finger, and thus, may move a pointer such as a cursor or receive information or a command desired by a user. Can be.

In addition, the conductive part 50 may be provided on the surface of the main body part 20.

Here, the conductive portion 50 may be configured on the inner surface and the upper surface of the side wall 22 of the body portion 20 and the base surface 24 of the mounting portion 21, wherein the conductive portion 50 is coated Or by deposition.

In addition, a cover glass 40 covering the main body 20 may be provided at an upper portion of the main body 20.

More specifically, the cover glass 40 may be provided on the upper surface of the side wall 22 of the main body 20, through which, the upper portion of the main body 20 may be covered with the cover glass 40, The cover glass 40 and the mounting portion 21 may be filled with air.

In addition, the cover glass 40 and the mounting portion 21 may be formed of an epoxy molding compound (EMC).

In this case, the cover glass 40 and the main body 20 may be bonded by an anisotropic conductive film (ACF) or an epoxy resin.

The display electrode 41 may be patterned on the cover glass 40.

As shown in FIG. 4A, the display electrode 41 may be patterned on the bottom surface of the cover glass 40.

In addition, the display electrode 41 may be patterned along the edge of the cover glass 40. More specifically, the display electrode 41 may include a portion in which the sensor 30 is vertically projected onto the cover glass 40. It can be patterned in parts other than B).

Here, the display electrodes 41 may be patterned in lines, and the display electrodes 41 may be patterned in a continuous state so as not to be shorted to each other.

In addition, as shown in FIG. 4B, the display electrode 41 may be formed inside the cover glass 40, and may also be formed through the cover glass 40.

In addition, as shown in FIG. 4C, the display electrode 41 may be patterned on the top surface of the cover glass 40.

That is, the display electrode 41 may be formed on any portion of the cover glass 40, and in this case, the display electrodes 41 may be patterned in a state of being connected to each other.

As a result, the display electrode 41 formed on the cover glass 40 may be electrically connected to the conductive part 50 coated on the upper surface of the side wall 22 of the body part 20.

That is, the track pad according to the embodiment of the present invention can configure a display electrode serving as a bezel on the cover glass 40 without the bezel separately provided in the related art, which can simplify the configuration.

In addition, the display electrode 41 may serve as an antenna used by a conventional bezel. For example, the display electrode 41 may function as an antenna for transmitting a sensing signal output from a signal output terminal (not shown) which may be further included in the sensor 30 to the outside, that is, the subject (finger) side.

In addition, the conductive part 50 and the sensor 30 may be electrically connected by the first connection line 60.

Here, the first connection line 60 may be a gold wire, but is not limited to this configuration.

In addition, the conductive unit 50 and the lead frame 70 may be connected in a manner such as through a mold via (TMV). For example, the inside of the side wall 22 of the main body 20 may be vertically penetrated and connected to each other.

As a result, the lead frame 70, the conductive part 50, the sensor 30, and the display electrode 41 may be electrically connected to each other.

6 is a cross-sectional view showing a track pad according to a second embodiment of the present invention, Figure 7 is a plan view showing a track pad according to a second embodiment of the present invention. In the track pad according to the present embodiment, a color film may be attached to the bottom surface of the cover glass or ink printing may be performed, and other construction is the same as the first embodiment described above, and thus description thereof will be omitted.

6 and 7, the color film 150 may be provided on the bottom surface of the cover glass 140.

Here, the color film 150 may be formed to have a sufficient area to include a portion in which the sensor 130 is projected in the vertical direction on the cover glass 140.

In addition, the color film 150 may be attached to cover a portion of the display electrode 141, and further, may be attached to the cover glass 140 as a whole.

Meanwhile, the color film 150 may be formed of a separate film and attached to the cover glass 140. Alternatively, the color film 150 may be a layer formed on the bottom surface of the cover glass 140 through ink printing.

Through this, the cover glass 140 of the track pad may be implemented in a desired color.

Here, the material and the thickness of the color film 150, the kind of ink, the printing method, etc. are not particularly limited.

8 is a cross-sectional view showing a track pad according to a third embodiment of the present invention, Figure 9 is a plan view showing a track pad according to a third embodiment of the present invention. In the track pad according to the present exemplary embodiment, the light emitting part and the light diffusing color film may be attached, and other configurations are the same as those of the first exemplary embodiment.

8 and 9, the conductive part 250 may be provided with a light emitting part 270.

Here, the light emitting unit 270 may be an LED chip, and one or more may be provided.

The light emitting part 270 may be electrically connected to the conductive part 250 by the second connection line 280.

In addition, the light emission time and the light emission time of the light emitting unit 270 may be variously adjusted. For example, the light emitter 270 may emit light in accordance with the driving of the sensor 230.

In addition, the emission color of the light emitting unit 270 is not limited to a specific color.

In addition, the light diffusion color film 290 may be attached to the bottom surface of the cover glass 240.

Here, the light diffusion color film 290 may be interpreted as a generic term for being able to uniformly distribute the light emitted from the light emitting unit 270.

That is, the light diffusion color film 290 may be interpreted to include not only a film in the form of a sheet such as a prism sheet, but also a coating by applying a spray or the like.

Through this, the shine function of emitting light may be realized through the cover glass 240 of the track pad, and may help the user to easily recognize the position of the track pad, and improve the aesthetics. It can provide a sense.

10 is a plan view showing an electronic device having a track pad according to a fourth embodiment of the present invention, Figure 11 is a cross-sectional view taken along the line B-B of FIG. In the track pad according to the present exemplary embodiment, the cover glass may be integrally formed with the cover glass of the display device. Since the other structure is the same as that of the first embodiment, the description thereof will be omitted.

10 and 11, the cover glass 340a of the track pad 310 provided in the electronic device may be integrally formed with the cover glass 340b of the display device 380.

Here, the display device 380 refers to a display device provided in all electronic devices such as a mobile phone, a portable terminal, a PDA, a tablet PC, a portable game device, and the like, and the display device is a touch screen. It may be a device, but is not necessarily limited thereto.

In addition, the cover glass 340a and the main body 320 of the track pad 310 may be bonded by a bonding body 390 such as an anisotropic conductive film (ACF).

Here, the cover glasses 340a and 340b may be tempered glass.

As a result, instead of mounting a track pad separate from the cover glass as in the related art, the display electrode 341 may be patterned on the cover glass 340a itself so as to serve as a bezel.

Therefore, the cover glass and the track pad may be integrally formed in the front part in the finished state of the electronic device, which may be advantageous in terms of design and may also reduce costs in terms of cost.

The foregoing description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

10,310: track pad 20,320: main body
30,130,230: sensor 40,140,240,340a, 340b, 440: cover glass
41,141,341: display electrode 50,250: conductive portion
60: first connecting line 70: lead frame
150: color film 270: light emitting unit
280: second connection line 290: light diffusion color film
380, 480: display device 390: bonding body
410: track pad 411: bezel
412: detector

Claims (10)

A trackpad with fingerprint detection and finger movement detection,
A body part which forms a body of the track pad and whose upper part is opened and a mounting part is formed on the inner side;
A sensor mounted on the mounting unit; And
A cover glass provided on an upper portion of the main body to cover the main body;
And a display electrode is patterned on the cover glass. delete The method of claim 1,
And the display electrode is patterned on a portion other than a portion where the sensor is vertically projected on the cover glass. The method of claim 1,
And a conductive part electrically connected to the display electrode on a surface of the main body part. 5. The method of claim 4,
And the conductive part and the sensor are electrically connected by a first connection line. 6. The method of claim 5,
The conductive part is provided with a light emitting part electrically connected to the conductive part by a second connection line. The method according to claim 6,
The bottom surface of the cover glass track pad is a light diffusion color film is attached. The method of claim 1,
The bottom surface of the cover glass track pad is provided with a color film. The method of claim 1,
And the cover glass is integrally formed with the cover glass of the display device. An electronic device comprising a display device having a track pad according to any one of claims 1 to 10.
KR1020120110758A 2012-10-05 2012-10-05 Track pad and electronic equipment having the same KR101379235B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016093669A1 (en) * 2014-12-11 2016-06-16 크루셜텍(주) Fingerprint sensor module assembly integrated with cover window for electronic device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000070777A (en) * 1997-12-04 2000-11-25 요트.게.아. 롤페즈 Electronic apparatus comprising fingerprint sensing devices
KR20050109708A (en) * 2004-05-17 2005-11-22 (주)모비솔 Wireless pointing device and pointing method
KR100629410B1 (en) 2003-08-13 2006-09-28 (주)모비솔 A Pointing Device and Pointing Method having the Fingerprint Image Recognition Function, and Mobile Terminal Device therefor
KR20060104274A (en) * 2005-03-30 2006-10-09 크루셜텍 (주) Optical pointing device and personal portable device that has cover-plate preventing malfunctional factors caused by both foreign substance such as dust and differencies in textile of human finger tips form one person to another

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000070777A (en) * 1997-12-04 2000-11-25 요트.게.아. 롤페즈 Electronic apparatus comprising fingerprint sensing devices
KR100629410B1 (en) 2003-08-13 2006-09-28 (주)모비솔 A Pointing Device and Pointing Method having the Fingerprint Image Recognition Function, and Mobile Terminal Device therefor
KR20050109708A (en) * 2004-05-17 2005-11-22 (주)모비솔 Wireless pointing device and pointing method
KR20060104274A (en) * 2005-03-30 2006-10-09 크루셜텍 (주) Optical pointing device and personal portable device that has cover-plate preventing malfunctional factors caused by both foreign substance such as dust and differencies in textile of human finger tips form one person to another

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016093669A1 (en) * 2014-12-11 2016-06-16 크루셜텍(주) Fingerprint sensor module assembly integrated with cover window for electronic device

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