KR101978208B1

KR101978208B1 - Mobile terminal

Info

Publication number: KR101978208B1
Application number: KR1020120085692A
Authority: KR
Inventors: 김용원; 송민규; 김재욱; 신광교; 이인선
Original assignee: 엘지전자 주식회사
Priority date: 2012-08-06
Filing date: 2012-08-06
Publication date: 2019-08-28
Also published as: KR20140019541A

Abstract

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 glass window coupled to the front surface of the case to cover the through window; A bezel formed around a rear surface of the glass window to block light transmission; A light transmitting portion formed on the bezel and transmitting the same color as that of the bezel; A white layer formed on a rear surface of the light transmitting part; And a display lamp disposed inside the case toward the white layer, so that the light is scattered so that the point light source of the display lamp is emitted to the surface light source and the light of the display lamp does not bounce too much.

Description

Mobile terminal {MOBILE TERMINAL}

The present invention relates to a mobile terminal capable of preventing a hot spot phenomenon in which illumination used for a display lamp of a mobile terminal is seen as a point light source and supplying soft and uniform light.

Terminal can move It may be divided into a mobile terminal (mobile / portable terminal) and a stationary terminal depending on whether or not. The mobile terminal may be further classified into a handheld terminal and a vehicle mount terminal according to whether a user can directly carry it.

As the terminal functions are diversified, for example, such a terminal is a multimedia player having a complex function such as taking a picture or a video, playing a music or video file, playing a game, or receiving a broadcast. Is being implemented.

In order to support and increase the function of such a terminal, it may be considered to improve the structural part and / or the software part of the terminal.

As the functions of the mobile terminal are diversified, display lamps are used to provide the user with information on the operation status of each function, and a plurality of display lamps are used to deliver information on various functions. .

The present invention has been proposed to meet the above-mentioned necessity, and an object thereof is to provide a mobile terminal for scattering light emitted so that the light of the display lamp does not appear as a point light source but as a surface light source.

The technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned above will be clearly understood by those skilled in the art from the following description. Could be.

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 glass window coupled to the front surface of the case to cover the through window; A bezel formed around a rear surface of the glass window to block light transmission; A light transmitting portion formed on the bezel and transmitting the same color as that of the bezel; A display lamp disposed inside the case toward the light transmitting part; And a white layer disposed between the light projector and the display lamp.

In the display lamp, a plurality of light emitting devices emitting different colors may be disposed on a rear surface of the light transmitting part.

The white layer is positioned between the display lamp and the light transmitting part and may be formed by white printing on a transparent film.

In this case, the white printing may be printed with a thickness of about 1μm or more and 10μm or less.

The light transmitting part may be formed in the coupling part with the case of the glass window. The case may further include a lamp hole formed at a position corresponding to the light transmitting part, and the display lamp may be coupled to an end of the lamp hole. have.

In this case, the lamp hole may include a step portion in which a cross-sectional size inside the hole is changed, and the circumference of the white layer may be coupled to the step portion.

The light transmitting unit is characterized in that the color is implemented by the smog printing method.

The effects of the mobile terminal according to the present invention will be described below.

According to at least one of the embodiments of the present invention, the light is scattered so that the point light source of the display lamp is emitted to the surface light source so that the light of the display lamp does not bounce too softly.

In addition, according to at least one of the embodiments of the present invention, when a plurality of light emitting devices are attached to one display lamp to display various states, it is possible to solve the problem that light is emitted from different positions according to the position of the light emitting devices. have.

The effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned above may 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 rear perspective view of a mobile terminal according to an embodiment of the present invention.
3 is an exploded perspective view of the front case and the glass window of the mobile terminal according to an embodiment of the present invention.
4 is a cross-sectional view illustrating a display lamp of a mobile terminal according to an embodiment of the present invention.

Hereinafter, a mobile terminal according to the present invention will be described in more detail with reference to the accompanying drawings. The suffixes "module" and "unit" for components used in the following description are given or used in consideration of ease of specification, and do not have distinct meanings or roles from each other.

The mobile terminal described herein may include a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), navigation, and the like.

However, it will be readily apparent to those skilled in the art that the configuration according to the embodiments described herein may also be applied to fixed terminals such as digital TVs, desktop computers, etc., except when applicable only to mobile terminals.

1 is a front perspective view of an example of a mobile terminal or a portable terminal according to the present invention.

The disclosed mobile terminal 100 has a terminal body in the form of a bar. However, the present invention is not limited thereto and may be applied to various structures such as a slide type, a folder type, a swing type, a swivel type, and two or more bodies are coupled to be relatively movable.

The body of the mobile terminal 100 includes a case 101, 102, 103 forming the appearance. In this embodiment, the case may be divided into a front case 101 and a rear case 102. Various electronic components are built in the space formed between the front case 101 and the rear case 102.

Parts that need to be detached, such as an auxiliary storage medium 165 such as a USIM card and a memory card, may include an opening in the case to be inserted into the case from the outside. Slots may be formed on the side of the case such that the auxiliary storage medium 165 is inserted into and mounted on the side of the mobile terminal 100, and card slots 166 and 167 may be formed to be mounted on the surface of the rear case 102. It may be.

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

The terminal cases 101 and 102 may include a display unit 151, an audio output unit 152, a camera 121, a user input unit 130/131, 132, a microphone 122, an interface 170, and the like.

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, when the mobile terminal is in a call mode, the mobile terminal displays a user interface (UI) or a graphic user interface (GUI) related to the call. When the mobile terminal 100 is in a video call mode or a photographing mode, the mobile terminal 100 displays photographed and / or received images, a UI, and a GUI.

The display unit 151 includes a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), and a flexible display (flexible). and at least one of a 3D display.

Some of these displays can be configured to be transparent or light transmissive so that they can be seen from the outside. This may be referred to as a transparent display. A representative example of the transparent display is TOLED (Transparant OLED). The rear structure of the display unit 151 may also be configured as a light transmissive structure. With this structure, the user can see the object located behind the terminal body through the area occupied by the display unit 151 of the terminal body.

There may be two or more display units 151 according to the implementation form of the mobile terminal 100. For example, a plurality of display units may be spaced apart or integrally disposed on one surface of the mobile terminal 100, or may be disposed on different surfaces, respectively.

When the display unit 151 and the touch sensor form 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 in addition to the output device. For example, when the touch sensor has a form of a touch film, a touch sheet, or a touch pad, the touch sensor may be stacked on the display unit 151 to form a layer structure, and may be included in the configuration of the display unit 151 to be integrated. Can be made.

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

When there is a touch input to the touch sensor, the corresponding signal (s) is sent to the touch controller. The touch controller processes the signal (s) and then transmits the corresponding data to the controller 180. As a result, the controller 180 can know which area of the display unit 151 is touched.

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

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 may also output a sound signal related to a function (eg, a call signal reception sound, a message reception sound, etc.) performed in the mobile terminal 100. The sound 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 call mode or the photographing mode. The processed image frame may 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 and 121 ′ of FIG. 2 may be provided according to a use environment.

The user input unit 130 generates input data for the user to control the operation of the terminal. The user input unit 130 may include a button 136 and a touch sensor (static pressure / capacitance) 137 positioned on the front, rear, or side surfaces of the mobile terminal 100, and although not shown, a keypad (key pad) ), A dome switch, a jog wheel, and a jog switch may be further included.

The user input unit 130 may include a plurality of manipulation units 131, 132, and 133. The manipulation units 131, 132, 133 may also be collectively referred to as a manipulating portion.

Content input by the first or second manipulation units 131 and 132 may be variously set. For example, the first operation unit 131 receives a command such as start, end, scroll, and the like, and the second operation unit 132 inputs a command such as adjusting the volume of the sound output from the sound output unit 152. The third manipulation unit 133 may receive a command such as activating / deactivating the touch recognition mode of the display unit 151.

The operation units 131, 132, and 133 may have a button method for recognizing when a user applies pressure. In addition to the display unit 151, the operation units 131, 132, and 133 may include a touch sensor 137. Therefore, the user's command may be input only by the user's touch.

The microphone 122 receives an external sound signal by a microphone in a call mode, a recording mode, a voice recognition mode, etc., and processes the external sound signal into electrical voice data. The processed voice data may be converted into a form transmittable to the mobile communication base station through the mobile communication module 112 and output in the call mode. The microphone 122 may implement various noise removing algorithms for removing noise generated in the process of receiving an external sound signal.

The interface unit 170 serves as a path with all external devices connected to the mobile terminal 100. The interface unit 170 receives data from an external device, receives power, transfers the power to each component inside the mobile terminal 100, or transmits data inside the mobile terminal 100 to an external device. For example, wired / wireless headset ports, external charger ports, wired / wireless data ports, memory card ports, ports for connecting devices with identification modules, audio input / output (I / O) ports, The video input / output (I / O) port, the earphone port, and the like may be included in the interface unit 170.

The identification module is a chip that stores various types of information for authenticating the usage rights of the mobile terminal 100, and includes a user identification module (UIM), a subscriber identify module (SIM), and a universal user authentication module ( Universal Subscriber Identity Module (USIM), and the like. A device equipped with an identification module (hereinafter referred to as an 'identification device') may be manufactured in the form of a smart card. Therefore, the identification device may be connected to the terminal 100 through a port.

The interface unit may be a passage through which power from the cradle is supplied to the mobile terminal 100 when the mobile terminal 100 is connected to an external cradle, or various command signals input from the cradle by a user may be transferred. It may be a passage that is delivered to the terminal. Various command signals or power input from the cradle may be operated as signals for recognizing that the mobile terminal is correctly mounted on the cradle.

FIG. 2 is a rear perspective view of the mobile terminal shown in FIG. 1.

Referring to FIG. 2, a camera 121 ′ may be additionally mounted on the rear of the terminal body, that is, the rear case 102. The camera 121 ′ has a photographing direction substantially opposite to that of the camera 121 (see FIG. 2), and may be a camera having the same or different pixels as the camera 121.

For example, the camera 121 has a low pixel so that the user's face is photographed and transmitted to the counterpart in case of a video call, and the camera 121 'photographs a general subject and does not transmit it immediately. It is desirable to have a high pixel because there are many. The cameras 121 and 121 'may be installed in the terminal body so as to be rotatable or pop-up.

The flash 123 and the mirror 124 may be further disposed adjacent to the camera 121 ′. The flash 123 shines light toward the subject when the subject is photographed by the camera 121 '. The mirror 124 allows the user to see his / her own face or the like when photographing (self-photographing) the user using the camera 121 '.

The sound output unit 152 'may be further disposed on the rear surface of the terminal body. The sound output unit 152 ′ at the rear of the body may implement a stereo function together with the sound output unit 152 (see FIG. 2) at the front of the body, and may be used to implement a speakerphone mode during a call.

The antenna 116 for receiving a broadcast signal may be additionally disposed on the side of the terminal body. The antenna 116 constituting a part of the broadcast receiving module 111 (refer to FIG. 1) may be installed to be pulled out of the terminal body.

3 is an exploded perspective view of the front case 101 and the glass window 105 of the mobile terminal according to an embodiment of the present invention, Figure 4 is a display lamp 200 of the mobile terminal according to an embodiment of the present invention. It is sectional drawing. 3 and 4, the glass window 105, the bezel 106, the front case 101, the white layer 210, and the display lamp 200 are illustrated.

The front case 101 is a case covering the front surface of the mobile terminal as described above, and has a through window formed so that the display unit 151 is exposed on the front surface. The through-window is formed larger than the active area (the area where the screen is displayed) of the minimum display unit 151, and in some cases, is formed larger than the display unit 151, so that the camera 121, the sound output unit 152, etc. Can be located.

The glass window 105 is coupled to the front surface of the front case 101 to cover the through-window 101a. The portion where the sound output module 152 is located may form an opening.

The bezel 106 is positioned between the glass window 105 and the front case 101 to cover internal components excluding the active areas of the front case 101 and the display unit 151. It is made of an opaque material so that the inside is not visible, and is generally formed by printing on the glass window 105.

Printing can be performed multiple times to block light transmission. Portions through which light must pass, such as the camera 121 or the sensor 141, may form openings in the bezel 106.

The light transmitting portion 106a is a portion where the display lamp 200 is located, and when viewed from the front, it is similar to other portions, but is thinner than the bezel 106 of other portions so that the light of the display lamp 200 is emitted to the front surface. .

If an opening is formed in the front surface such as a portion where the camera is formed, there is a problem that the display lamp 200 is visible to the eyes of the user even when the display lamp 200 is not turned on. Therefore, a smog printing method may be used in order to be thinner than the bezel 106 of the other part and to be indistinguishable from the front while transmitting light.

The display lamp 200 is located at the rear of the glass window 105 and is disposed to face the light transmitting part 106a. Different colors of the light emitting devices 201, 202, and 203 may be displayed to display different states of the mobile terminal according to the color.

It may be coupled to the front case 101 as shown in Figure 4 to secure to the light transmitting portion (106a). The front case 101 may further include a lamp hole 1011 on which the display lamp 200 may be mounted.

The lamp hole 1011 may be formed by simply drilling a hole in the front case 101, or may be formed to protrude in the rear direction as shown in FIG. The display lamp 200 is fixed to the end of the lamp hole 1011 to face the light transmitting part 106a.

The display lamp 200 indicates whether the USIM card or the memory card is installed or not, and indicates whether the mobile terminal is in normal operation. A plurality of display lamps 200 may be required according to the diversification of functions, but in this case, the display lamp 200 collides with the problem of space limitation of the mobile terminal. As shown in FIG. 203 may be mounted on one display lamp 200, and different states may be displayed according to colors.

The display lamp 200 may use light emitting diodes 201, 202, and 203 in consideration of size, durability, brightness, and the like. Since the light emitting devices 201, 202, and 203 have high light intensity, when the light emitted from the display lamp 200 passes through the light emitting unit 106a, the light is emitted in the form of a point light source.

When the light is emitted in the form of a point light source, only a portion of the display lamp 200 becomes excessively prominent, so it is necessary to make the light more smoothly. In addition, when the plurality of light emitting devices 201, 202, and 203 are used as shown in FIG. 3, since the positions of the light emitting devices 201, 202, and 203 are different, light is emitted from the front side according to the light emitting devices 201, 202, and 203. This injection position is different.

Therefore, the present invention uses the white layer 210 to allow the light emitted through the one light transmitting unit 106a to be uniformly spread throughout the light transmitting unit 106a without being seen as a point light source.

The white layer 210 is a scattering layer positioned between the light transmitting unit 106a and the display lamp 200 and is a thin white member for scattering. The white layer 210 may be printed on the rear surface of the light transmitting unit 106a in white, or a member having a separate sheet shape may be used as shown in FIG. 4.

In the former case, since the printing is performed in a small area, there may be a variation in the printing thickness, thereby causing a variation in the transmittance. In addition, white printing may cause visual differences with the bezel 106 region on the front surface. In the latter case, light of the display lamp 200 may be emitted with a uniform transmittance by inserting a sheet of white color having a uniform light transmittance.

The white layer 210 may use a white print on a transparent film. In this case, the white print is thinly formed only once because light must be transmitted. Considering the transmittance of light, it can be formed to a thickness of about 1μm or more and 10μm or less.

The light passing through the white layer 210 is weakened in intensity, but is scattered to uniformly supply light to the entire transparent part 106a. Therefore, even if there is a position difference between the light emitting elements 201, 202, and 203, the user cannot recognize the difference.

The lamp hole 1011 may include a stepped portion 1012 so that the white layer 210 may be seated. As shown in FIG. 4, the stepped part 1012 may be formed to have a narrower side of the light transmitting part 106a, or may be formed to have a narrower side of the display lamp 200. The white layer 210 of the small size may be stably coupled to the lamphole 1011 by seating the white layer 210 on the stepped portion of the stepped portion 1012.

As described above, according to at least one of the exemplary embodiments of the present invention, light is scattered so that the point light source of the display lamp is emitted to the surface light source, and thus the light of the display lamp may be emitted without being too splashed.

It is apparent to those skilled in the art that the present invention can be embodied in other specific forms without departing from the spirit and essential features of the present invention.

Accordingly, the above detailed description should not be construed as limiting in all aspects and should be considered as illustrative. The scope of the invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the invention are included in the scope of the invention.

100: mobile terminal 101, 102, 103: case
105: glass window 106: bezel
1011: lamp hole 1012: stepped portion
121: camera 122: microphone
131, 132, and 133: user input unit 151: display unit
152: sound output unit 116: antenna
170: interface 200: display lamp
210: white layer 201, 202, 203: light emitting element

Claims

A case in which an electronic component is mounted therein and a through-window is formed on a front surface thereof;
A glass window coupled to the front surface of the case to cover the through window;
A bezel formed around a rear surface of the glass window to cover a coupling portion of the glass window and the case and block light transmission;
A light transmitting portion formed on the bezel and transmitting the same color as that of the bezel;
A lamp hole protruding into the case at a position corresponding to the light transmitting part;
A display lamp disposed in the lamp hole toward the light emitting part and including a plurality of light emitting devices emitting different colors;
A white layer disposed in the lamp hole and disposed between the light projector and the display lamp; And
A control unit for controlling the display lamp to output a different color according to a mobile terminal state;
The lamp hole includes a step portion in which the cross-sectional size inside the hole is changed,
The white layer is,
A circumference is fixed to the inside of the lamp hole by coupling to the stepped portion, characterized in that the white printing on the transparent film.

delete

The method of claim 1,
The white printing is
A mobile terminal, characterized in that printed at a thickness of 1μm or more and 10μm or less.

delete

The method of claim 1,
The light transmitting portion
Mobile terminal characterized in that the color is implemented by the smog printing method.