KR20140040974A - Mobile terminal - Google Patents

Mobile terminal Download PDF

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Publication number
KR20140040974A
KR20140040974A KR1020120107710A KR20120107710A KR20140040974A KR 20140040974 A KR20140040974 A KR 20140040974A KR 1020120107710 A KR1020120107710 A KR 1020120107710A KR 20120107710 A KR20120107710 A KR 20120107710A KR 20140040974 A KR20140040974 A KR 20140040974A
Authority
KR
South Korea
Prior art keywords
light
key pattern
pattern groove
user input
mobile terminal
Prior art date
Application number
KR1020120107710A
Other languages
Korean (ko)
Inventor
박진욱
이현호
Original Assignee
엘지전자 주식회사
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 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to KR1020120107710A priority Critical patent/KR20140040974A/en
Publication of KR20140040974A publication Critical patent/KR20140040974A/en

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Classifications

    • 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
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
    • 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
    • H04M1/22—Illumination; Arrangements for improving the visibility of characters on dials
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2250/00—Details of telephonic subscriber devices
    • H04M2250/22—Details of telephonic subscriber devices including a touch pad, a touch sensor or a touch detector

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)

Abstract

A case in which an electronic component is mounted therein and a through-window is formed on a front surface thereof; A display unit disposed inside the case toward the through window; A window glass that covers the through-window and is coupled to the case and includes a bezel formed of an opaque material around the light-transmitting portion except for the light-transmitting portion corresponding to the display portion; A user input unit including a key pattern groove formed by etching a portion of the bezel and a touch sensor formed on a rear surface of the key pattern groove; A light emitting unit including a light guide layer positioned behind the user input unit and a light source positioned at a side of the light guide layer; And a light diffusion preventing unit positioned between the light emitting unit and the window glass to prevent light diffusion, thereby eliminating light bleeding through the key pattern groove of the user input unit, thereby clearly displaying the key pattern shape. The mobile terminal can be provided with a clean appearance.

Description

[0001]

The present invention relates to a mobile terminal having a neat appearance by preventing the bleeding of light emitted from the front user input unit.

The terminal can move And can be divided into a mobile / portable terminal and a stationary terminal depending on whether the mobile terminal is a mobile terminal or a mobile terminal. The mobile terminal can be divided into a handheld terminal and a vehicle mount terminal according to whether the user can directly carry the mobile terminal.

Such a terminal has various functions, for example, in the form of a multimedia device having multiple functions such as photographing and photographing of a moving picture, reproduction of a music or video file, reception of a game and broadcasting, etc. .

In the mobile terminal, the keypad and various buttons are omitted while the touch screen is being applied. The user input unit using the touch method forms a key pattern groove in the bezel and includes a lamp to emit light through the groove to display the position of the user input unit.

An object of the present invention is to provide a mobile terminal further comprising a light diffusion preventing unit that can prevent the light bleeding emitted through the touch type user input unit disposed on the front of the mobile terminal.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not restrictive of the invention, unless further departing from the spirit and scope of the invention as defined by the appended claims. It will be possible.

In order to achieve the above object, the present invention, the electronic component is mounted therein, a case formed with a through window on the front; A display unit disposed inside the case toward the through window; A window glass that covers the through-window and is coupled to the case and includes a bezel formed of an opaque material around the light-transmitting portion except for the light-transmitting portion corresponding to the display portion; A user input unit including a key pattern groove formed by etching a portion of the bezel and a touch sensor formed on a rear surface of the key pattern groove; A light emitting unit including a light guide layer positioned behind the user input unit and a light source positioned at a side of the light guide layer; And a light diffusion preventing unit positioned between the light emitting unit and the window glass to prevent light diffusion.

The light diffusion preventing unit may use a convex lens formed between the rear surface of the key pattern groove and the touch sensor. The convex lens may be formed by applying an SVR (Super View Resin) to a convex shape on a rear surface of the key pattern groove.

The light diffusion preventing unit may use a tapered portion or a step portion formed between the back surface of the key pattern groove and the light guide layer.

According to at least one embodiment of the present invention, the light pattern emitted through the key pattern groove of the user input unit can be eliminated so that the shape of the key pattern can be clearly seen to provide a mobile terminal having a clean appearance.

The effects obtained by the present invention are not limited to the above-mentioned effects, and other effects not mentioned can be clearly understood by those skilled in the art from the following description will be.

1 is a front perspective view of a mobile terminal according to an embodiment of the present invention.
2 is a cross-sectional view illustrating a user input unit of a conventional mobile terminal.
3 is a cross-sectional view illustrating a user input unit of a mobile terminal according to an embodiment of the present invention.
4 is a cross-sectional view illustrating a user input unit of a conventional mobile terminal.
5 is a cross-sectional view illustrating a user input unit of a mobile terminal according to another embodiment of the present invention.
6 is a cross-sectional view illustrating a user input unit of a mobile terminal according to another embodiment of the present invention.

Hereinafter, a mobile terminal 100 according to the present invention will be described in detail with reference to the drawings. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role.

The mobile terminal 100 described herein may include a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player) have. However, it will be easily understood by those skilled in the art that the configuration according to the embodiment described herein may be applied to a fixed terminal such as a digital TV, a desktop computer, and the like, except when applicable only to the mobile terminal 100 .

1 is a perspective view of a mobile terminal 100 or a mobile terminal according to the present invention.

The disclosed mobile terminal 100 includes a bar-shaped terminal body. However, the present invention is not limited thereto, and can be applied to various structures such as a slide type, a folder type, a swing type, and a swivel type in which two or more bodies are relatively movably coupled.

The body of the mobile terminal 100 includes a casing 101, 102, In this embodiment, the case may be divided into a front case 101 and a rear case 102. [ A variety of electronic components are embedded in the space formed between the front case 101 and the rear case 102.

The front case 101 covers a front surface of the mobile terminal, and a display unit 151 on the front surface. A home button 131, a camera 121, an acoustic output unit 152, and a proximity sensor 141 are arranged. A display unit 151; An opening is formed in the front case 101 and a window glass made of a transparent material covering the opening is disposed at a position where light must pass, such as the camera 121 and the proximity sensor 141.

The window glass 108 may cover the plurality of openings using a large size or may use a separate transparent window glass 108 for each opening. In the present invention, the integral window glass 108 can be used for a unified front design.

In some cases, electronic components may be mounted on the surface of the rear case 102 as well. Electronic components mounted on the surface of the rear case 102 include a battery, a USIM card, a memory card, and the like which are detachable by the user. At this time, the rear case 102 may further include a rear cover 103 for covering the surface thereof. When the rear cover 103 is removed, the surface of the rear case 102 is exposed.

When the rear cover 103 is coupled, only a portion of the side surface of the rear case 102 may be exposed, and if the size of the rear cover 103 is reduced, a portion of the rear surface of the rear case 102 may also be exposed. And an opening 103 'for exposing the camera 121' or the sound output unit 152 'to the outside when the rear cover 103 covers the entire rear surface of the rear case 102.

The cases 101, 102, and 103 may be formed by injection molding synthetic resin or may be formed of a metal material such as stainless steel (STS) or titanium (Ti).

The display unit 151, the sound output unit 152, the camera 121, the user input units 130/131 and 132, the microphone 122, and the interface 170 may be disposed in the terminal cases 101 and 102.

The display unit 151 occupies most of the main surface of the front case 101. A sound output unit 152 and a camera 121 are disposed in an area adjacent to one end of both ends of the display unit 151 and a user input unit 131 and a microphone 122 are disposed in an area adjacent to the other end. The side button 132 and the interface 170 may be disposed on the side surfaces of the front case 101 and the rear case 102. [

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, when the mobile terminal is in the call mode, a UI (User Interface) or a GUI (Graphic User Interface) associated with a call is displayed. When the mobile terminal 100 is in the video communication mode or the photographing mode, the photographed and / or received video or UI and GUI are displayed.

The display unit 151 may be a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), a flexible display display, and a 3D display.

There may be two or more display units 151 according to the embodiment of the mobile terminal 100. For example, in the mobile terminal 100, a plurality of display portions may be spaced apart from one another, or may be disposed integrally with one another, and may be disposed on different surfaces, respectively.

In the case where the display unit 151 and the touch sensor 137 have a mutual layer structure or are integrally formed (hereinafter referred to as a 'touch screen'), the display unit 151 may be used as an input device . The touch sensor may be stacked on the display unit 151 to form a layer structure when the touch sensor has a form of a touch film, a touch sheet, a touch pad, or the like. ≪ / RTI >

The touch sensor may be configured to convert a change in a pressure applied to a specific portion of the display unit 151 or a capacitance generated in a specific portion of the display unit 151 into an electrical input signal. The touch sensor can be configured to detect not only the position and area to be touched but also the pressure at the time of touch.

If there is a touch input to the touch sensor, the corresponding signal (s) is sent to the touch controller (not shown). The touch controller processes the signal (s) and transmits the corresponding data to the controller 180. Thus, the control unit 180 can know which area of the display unit 151 is touched or the like.

As described above, since the display unit 151 occupies most of the front surface, users are sensitive to the size, image quality, etc. of the display unit 151, and wires or the camera image pickup device 121 or sound around the display unit 151. A bezel 109 is disposed to cover an electronic component used in the mobile terminal 100 such as a receiver of the module 152.

The sound output module 152 may output audio data received from the wireless communication unit 110 or stored in the memory 160 in a call signal reception, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, and the like. The sound output module 152 also outputs sound signals related to functions (e.g., call signal reception sound, message reception sound, etc.) performed in the mobile terminal 100. [ The audio output module 152 may include a receiver, a speaker, a buzzer, and the like.

The camera 121 processes image frames such as still images or moving images obtained by the image sensor in the video communication mode or the photographing mode. The processed image frame can be displayed on the display unit 151. [

The image frame processed by the camera 121 may be stored in the memory 160 or transmitted to the outside through the wireless communication unit 110. [ Two or more cameras 121 may be provided depending on the use environment.

The microphone 122 receives an external sound signal through a microphone in a communication mode, a recording mode, a voice recognition mode, or the like, and processes it as electrical voice data. The processed voice data can be converted into a form that can be transmitted to the mobile communication base station through the mobile communication module 112 when the voice data is in the call mode, and output. Various noise reduction algorithms may be implemented in the microphone 122 to remove noise generated in receiving an external sound signal.

The user input unit 130 is operated to receive a command for controlling the operation of the mobile terminal 100. When the user touches the touch terminal using a touch sensor, the user input unit 130 receives a command by applying a physical pressure to the key 131 input by the command. It may include buttons 132 and 133 of an input method. The user input units 131, 132, and 133 may also be collectively referred to as a manipulating portion.

3 is a cross-sectional view illustrating a user input unit 131 of a mobile terminal 100 according to an embodiment of the present invention. Referring to FIG. 3, a bezel 109 formed on the rear surface of the window glass 108 and a key pattern groove 109c formed by etching a portion of the bezel 109 and a touch coupled to the back surface of the key pattern groove 109c are etched. The light source 1313, the light guide layer 1311, and the convex lens 200 that supply light emitted through the sensor 145 and the key pattern groove 109c are illustrated.

The window glass 108 is coupled to the through-window of the front surface of the case of the mobile terminal, and covers the display unit 151 and the user input unit 131 disposed on the front surface. The position corresponding to the display unit 151 is made transparent so that the display unit 151 disposed on the rear surface of the window glass 108 is visible, and the bezel 109 is formed of an opaque material around the window glass 108.

The bezel 109 is formed on the window glass 108 in a printing color, and in order to implement colors other than black, such as white, first, a color layer 109a for implementing colors is printed, and then light is blocked. The light shielding layer 109b is formed of dark ink which can be used. The color layer 109b may be formed by printing a plurality of times in order to obtain the bezel 109 having a desired color without the color of the light blocking layer 109b being visible on the entire surface.

The user input unit 131 may be formed in a portion of the bezel 109 as shown in FIG. 1, and displays a function of the user input unit 131 so that the user can recognize the position of the user input unit 131. It includes key patterns consisting of figures or characters.

The bezel 109 may be partially etched to form a key pattern to form a key pattern groove 109c, and light may be emitted through the key pattern groove 109c to display the position of the user input unit 131.

The key pattern groove 109c may be formed to penetrate all the layers of the bezel 109, and as shown in FIG. 2, the first color layer 109a may be formed and only the remaining layers may be etched. After the bezel 109 is formed, a portion of the bezel 109 may be removed, or a portion corresponding to the pattern pattern groove 109c may be formed in a non-printing manner.

 When the color layer 109a is partially left, the user input unit 131 may not be noticeable when not in use. However, when the user input unit 131 is not used, light may be emitted to identify the user input unit 131. Since the color layer 109a does not completely block light, light passes through the color layer 109a so that the light is visible to the user.

A touch sensor 145 capable of recognizing a user's touch may be provided on the rear surface of the key pattern groove 109c. The touch sensor 145 is attached to the rear surface of the key pattern groove 109c in the form of a film. When the display unit 151 includes the touch sensor 145, the touch sensor 145 covers the portion where the display unit 151 is located. The touch sensor 145 may be used.

The light guide layer 1311 is positioned on the rear surface of the key pattern groove 109c, and a light source 1313 is disposed on one side of the light guide layer 1311. As a representative example of the light guide layer 1311, a light guide film having a diffusion pattern for scattering light on a transparent film is used.

The light source 1313 is a device for supplying light to the user input unit 131 and may use a small size LED.

Light is incident on the side of the light guide layer 1311 that uniformly emits the light emitted from the light source 1313 to the pattern groove, and the light is emitted to the front surface of the light guide layer 1311. The light guide layer 1311 may be provided with a reflective layer (not shown) on the rear surface in order to emit light in the front direction.

The light diffusion part is positioned between the window glass 108 and the touch sensor 145 to prevent the light emitted from the key pattern groove 109c from spreading so that the key pattern is clearly seen. The light diffusing portion of this embodiment uses the convex lens 200. do. The convex lens 200 controls the direction of light so that light incident from the light guide layer 1311 can be emitted through the key pattern groove 109c.

Referring to the user input unit 131 of the conventional mobile terminal illustrated in FIG. 2, when the convex lens 200 is not present, the touch sensor 145 is concavely sucked into the key pattern groove 109c.

The touch sensor 145 introduced into the key pattern groove 109c acts as a concave lens, so that light incident to the key pattern groove 109c spreads widely as shown in FIG. 2. When the light spreads, the shape of the key pattern becomes unclear due to the light bleeding of light emitted through the key pattern groove displaying the user input unit 131, thereby deteriorating the front appearance design.

Accordingly, in the present invention, the touch sensor 145 is prevented from being rolled into the key pattern groove 109c by using the convex lens 200, and further, light is spread using the property of collecting light from the convex lens 200. The phenomenon can be prevented from appearing. The convex lens 200 may be formed by inserting a convex hemispherical transparent plastic or applying SVR (Super View Resin) in a convex shape.

5 is a cross-sectional view illustrating a user input unit 131 of a mobile terminal according to another embodiment of the present invention. Referring to FIG. 5, the bezel 109 formed on the rear surface of the window glass 108 and the key pattern groove 109c formed by etching a portion of the bezel 109 and the rear surface of the key pattern groove 109c are coupled. The light source 1313, the light guide layer 1311, the stepped portion 210, and the prism sheet 230 for supplying light to the touch sensor 145 and the key pattern groove 109c are illustrated.

Since the window glass 108, the bezel 109, the key pattern groove 109c, the touch sensor 145, and the light guide layer 1311 are similar to those of FIG. 3 described above, they are omitted.

The stepped part 210 is positioned between the key pattern groove 109c and the light guide layer 1311. Since the size of the key pattern groove 109c is a thin slit shape, when the light passes through the thin slit, it is diffused by the diffraction phenomenon of light as shown in FIG.

In order to prevent the diffraction of light to suddenly pass through the narrow passage to use the stepped portion 210. The stepped part 210 may gradually reduce the path of light incident to the key pattern groove 109c, thereby reducing the diffraction phenomenon of light generated by suddenly passing through the narrow path.

In addition to the stepped part 210, the tapered part 220 may be used as illustrated in FIG. 6. The taper portion 220 is a member having a gentle inclination extending from the light guide layer 1311 to the key pattern groove 109c. The taper portion 220 gradually reduces the path through which light is incident, as in the step portion 210 described above. By guiding, the diffraction phenomenon can be prevented.

The prism sheet 230 serves to condense light, and is a member used for the purpose of improving the brightness of the light. When the prism sheet 230 is formed on the back surface of the key pattern groove 109c, light spreading can be prevented. have.

As described above, according to at least one embodiment of the present invention, the light pattern emitted through the key pattern groove of the user input unit may be eliminated to clearly show the key pattern shape, thereby providing a mobile terminal having a clean appearance.

It will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

Accordingly, the above description should not be construed in a limiting sense in all respects and should be considered illustrative. The scope of the present invention should be determined by rational interpretation of the appended claims, and all changes within the scope of equivalents of the present invention are included in the scope of the present invention.

100: mobile terminal 101, 102: case
108: window glass 109: bezel
109a: color layer 109b: printing layer
109c: key pattern groove 145: touch sensor
1311: light guide layer 1313: light source
151:
200: convex lens 210: stepped portion
220: taper portion 230: prism sheet

Claims (6)

A case in which an electronic component is mounted therein and a through-window is formed on a front surface thereof;
A display unit disposed inside the case toward the through window;
A window glass covering the through window and coupled to the case, the window glass including a light transmitting part corresponding to the display and an opaque bezel formed around the light transmitting part;
A user input unit including a key pattern groove formed by etching a portion of the bezel and a touch sensor formed on a rear surface of the key pattern groove;
A light emitting unit including a light guide layer positioned behind the user input unit and a light source positioned at a side of the light guide layer; And
And a light diffusion preventing unit positioned between the light emitting unit and the window glass to prevent light diffusion. The method of claim 1,
The light diffusion prevention unit
And a convex lens formed between the rear surface of the key pattern groove and the touch sensor. 3. The method of claim 2,
The convex lens is
Mobile terminal, characterized in that formed by applying a SVR (Super View Resin) in a convex shape on the back of the key pattern groove. The method of claim 1,
The light diffusion prevention unit
And a tapered portion formed between the rear surface of the key pattern groove and the optical guide layer. The method of claim 1,
The light diffusion prevention unit
And a stepped portion formed between the rear surface of the key pattern groove and the optical guide layer. The method of claim 1,
The light diffusion prevention unit
Mobile terminal, characterized in that the prism sheet is coupled to the back of the key pattern groove.
KR1020120107710A 2012-09-27 2012-09-27 Mobile terminal KR20140040974A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120107710A KR20140040974A (en) 2012-09-27 2012-09-27 Mobile terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120107710A KR20140040974A (en) 2012-09-27 2012-09-27 Mobile terminal

Publications (1)

Publication Number Publication Date
KR20140040974A true KR20140040974A (en) 2014-04-04

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KR1020120107710A KR20140040974A (en) 2012-09-27 2012-09-27 Mobile terminal

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105281737A (en) * 2014-06-25 2016-01-27 福特全球技术公司 Proximity switch assembly having groove between adjacent proximity sensors
KR20170123982A (en) * 2016-04-29 2017-11-09 엘지전자 주식회사 User interface apparatus for Vehicle and Vehicle
US9818973B2 (en) 2015-06-15 2017-11-14 Samsung Display Co., Ltd. Display device
US10031265B2 (en) 2015-06-26 2018-07-24 Samsung Display Co., Ltd. Display device with a window including a light-path changing layer
US10142671B2 (en) 2016-02-19 2018-11-27 Lg Electronics Inc. User interface apparatus for vehicles and vehicle having the same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105281737A (en) * 2014-06-25 2016-01-27 福特全球技术公司 Proximity switch assembly having groove between adjacent proximity sensors
CN105281737B (en) * 2014-06-25 2021-06-04 福特全球技术公司 Proximity switch assembly with slot between adjacent proximity sensors
US9818973B2 (en) 2015-06-15 2017-11-14 Samsung Display Co., Ltd. Display device
US10031265B2 (en) 2015-06-26 2018-07-24 Samsung Display Co., Ltd. Display device with a window including a light-path changing layer
US10142671B2 (en) 2016-02-19 2018-11-27 Lg Electronics Inc. User interface apparatus for vehicles and vehicle having the same
KR20170123982A (en) * 2016-04-29 2017-11-09 엘지전자 주식회사 User interface apparatus for Vehicle and Vehicle

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