KR101873414B1 - Mobile terminal - Google Patents

Abstract

A light emitting device includes a terminal body having a circuit board, a light emitting element mounted on the circuit board and configured to emit light by an electrical signal applied thereto, and a light emitting element mounted on the circuit board to surround the light emitting element, Wherein the reflector has a first reflecting surface and a second reflecting surface extending from the first reflecting surface and inclined with respect to the first reflecting surface.

Description

[0001] MOBILE TERMINAL [0002]

The present invention relates to a mobile terminal having a flash.

A mobile terminal is a portable electronic device that is portable and has one or more functions of voice and video call function, information input / output function, and data storage function.

As the functions are diversified, the mobile terminal is implemented as a multimedia player having complicated functions such as photographing, video shooting, playback of music or video file, game, broadcast reception, and the like.

In order to support and enhance the function of the mobile terminal, various attempts have been made in the hardware part and / or the software part of the mobile terminal.

For example, the mobile terminal may have various types of flashes for flash mode shooting or for performing a light function. However, the modular flash has a problem that it is difficult to apply to a slim type mobile terminal because of its thick thickness. Further, if the thickness of the module is reduced by lowering the height of the reflector, which is a constituent of the flash, there is a problem that the manufacture is difficult and the performance is poor.

Therefore, a structural improvement of the flash having a simpler structure to be applied to the slim mobile terminal can be considered.

The present invention is intended to provide a mobile terminal having a flash of a simpler structure.

According to an aspect of the present invention, there is provided a mobile terminal comprising: a terminal body having a circuit board; and a light emitting device mounted on the circuit board to emit light by an electrical signal applied thereto And a reflector mounted to surround the light emitting device on the circuit board and configured to reflect the light, wherein the reflector has a first reflecting surface and a second reflecting surface extending from the first reflecting surface, And a second reflecting surface formed to be inclined with respect to the first reflecting surface.

According to an embodiment of the present invention, the reflector includes a base portion having a predetermined thickness and having an upper surface forming the first reflection surface, a hollow portion penetrating the base portion to receive the light emitting element, And an inner surface of the protrusion part protruding from the base part so as to form a stepped shape, the protrusion part forming the second reflecting surface.

The first reflection surface may have a circular shape centering on the light emitting device, and the second reflection surface may be disposed to surround the light emitting device.

The inner circumferential surface of the hollow portion may be formed to be inclined with respect to the circuit board, and the inner circumferential surface may form the third reflecting surface.

The first reflection surface may be disposed on the same plane as the upper surface of the light emitting device, or may be disposed lower than the upper surface of the light emitting device.

The first reflection surface may be formed parallel to the circuit board, and the second reflection surface may be formed inclined at 43 degrees with respect to the circuit board. Alternatively, the first reflection surface may be inclined with respect to the circuit board, and the second reflection surface may be inclined at 43 degrees with respect to the circuit board.

According to another embodiment of the present invention, the mobile terminal further includes a lens disposed to cover the light emitting device and the reflector, and having a convex surface formed to be convex toward the light emitting device to diffuse the light . The convex surface may be configured to be received in a space between the base portion and the protrusion.

The lens may include a fixing part which is provided on the circuit board and is arranged to surround a side surface of the reflector, and a window part protruding from the fixing part and arranged to cover the light emitting element and the reflector.

The portion of the circuit board corresponding to the window portion may be printed in a black-based color.

According to another embodiment of the present invention, the mobile terminal further includes a frame coupled to cover the circuit board, wherein the frame includes a hole corresponding to the window portion, and a pressing portion configured to press and press the fixing portion Respectively.

According to another embodiment of the present invention, the mobile terminal further includes a cover having a through hole corresponding to the window portion and detachably coupled to the frame.

According to another embodiment of the present invention, the mobile terminal further includes a pad attached to an upper surface of the protrusion and configured to buffer between the reflector and the lens, and to reflect the light. The pads may be printed in a white-based color.

According to another aspect of the present invention, there is provided a light emitting device including a terminal body having a circuit board, a light emitting element mounted on the circuit board and configured to emit light by an electrical signal applied thereto, And a reflector provided so as to surround the reflector and reflect the light, wherein the reflector includes a plurality of reflection surfaces formed to be inclined at different angles with respect to the circuit board so as to reflect the light at different angles, Lt; / RTI >

According to another aspect of the present invention, there is provided a light emitting device including a terminal body having a circuit board, a light emitting element formed to emit light by an electrical signal mounted on the circuit board, And a reflector that is mounted to surround the reflector and reflects the light, wherein the reflector has a base portion having a predetermined thickness, and a reflector formed to penetrate the base portion to receive the light emitting element, And a protrusion formed to protrude from the base portion so that the inner surface of the hollow portion forms a curved surface inclined toward the light emitting element.

According to the present invention, the components of the flash, such as the light emitting device and the reflector, are mounted directly on the circuit board and the reflector is disposed to surround the side surface of the light emitting device. The conventional modular structure and the reflector are disposed on the upper surface of the light emitting device The thickness can be reduced as compared with the deployed structure, and as a result, a slim mobile terminal can be realized.

Further, since a window for directly exposing the outside of the lens for diffusing light is formed, a separate member for covering the window is not required, and a convex surface for diffusing light is arranged to be accommodated in the space between the base and the protrusion, Can be further reduced.

In addition, since the reflector reflects the light emitted from the light emitting device through the first and second reflection surfaces at different angles, the light utilization efficiency can be improved. A pad is attached to the upper surface of the reflector to maximally obscure the exposure of the reflector disposed on the side surface of the light emitting element.

1 is a perspective view of an example of a mobile terminal according to the present invention.
FIG. 2 is a rear perspective view of the mobile terminal shown in FIG. 1. FIG.
3 is a cross-sectional view showing the flash portion of Fig.
4 is a perspective view of the reflector shown in Fig.
5 is a simulation result showing the performance when the second reflection surface of FIG. 4 is inclined at a specific angle.
Figures 6 and 7 are cross-sectional views illustrating variations of the flash shown in Figure 3;

Hereinafter, a mobile terminal according to the present invention will be described in detail with reference to the drawings.

In the present specification, the same or similar reference numerals are given to different embodiments in the same or similar configurations. As used herein, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. In addition, the suffix "module" and " part "for constituent elements 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 described in this specification includes a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), a PMP Books, e-books, navigation, and the like.

However, it will be understood by those skilled in the art that the configuration according to the embodiments described herein may be applied to a fixed terminal such as a digital TV, a desktop computer, and the like, unless the configuration is applicable only to a mobile terminal.

1 is a perspective view of an example of a mobile terminal 100 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 watch type, a clip type, a spectacle type, or a folder type, a flip type, a slide type, a swing type and a swivel type in which two or more bodies are movably coupled have.

The body includes a case (frame, housing, cover, etc.) which forms an appearance. 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. At least one intermediate case may be additionally disposed between the front case 101 and the rear case 102. A battery cover 103 covering the battery 191 may be detachably attached to the rear case 102 have.

The cases may be formed by injection molding of synthetic resin, or may be formed of metal such as stainless steel (STS), aluminum (Al), titanium (Ti), or the like.

A first sound output module 153a, a first camera 121a, a first operation unit 131 and the like are disposed on the front surface of the terminal body, and a microphone 122, an interface unit 170 ), A second operation unit 132, and the like.

The display unit 151 is configured to display (output) information processed by the mobile terminal 100. The display unit 151 may include a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED) ), A flexible display, a 3D display, and an e-ink display.

The display unit 151 may include touch sensing means for receiving a control command by a touch method. When a touch is performed on any one of the display units 151, the touch sensing unit senses the touch and the content corresponding to the touched position is input. The content input by the touch method may be a letter or a number, an instruction in various modes, a menu item which can be designated, and the like.

The touch sensing means may be formed of a translucent material so that the visual information output from the display unit 151 can be seen, and a structure for enhancing the visibility of the touch screen in a bright place. 1, the display unit 151 occupies most of the front surface of the front case 101.

A first sound output module 153a and a first camera 121a are disposed in an area adjacent to one end of both ends of the display unit 151 and a first operation unit 131 and a microphone 122 . The second operation unit 132 (see FIG. 2), the interface unit 170, and the like may be disposed on the side of the terminal body.

The first sound output module 153a may be implemented in the form of a receiver for delivering a call sound to a user's ear or a loud speaker for outputting various alarm sounds or multimedia playback sounds.

The sound generated from the first sound output module 153a may be configured to be emitted along the assembly gap between the structures. In this case, the hole formed independently for the apparent acoustic output is hidden or hidden, so that the appearance of the mobile terminal 100 can be simplified.

The first camera 121a processes an image frame such as a still image or moving image 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 user input unit is operated to receive a command for controlling the operation of the mobile terminal 100 and may include first and second operation units 131 and 132. [ The first and second operation units 131 and 132 may be collectively referred to as a manipulating portion and may be any type of tactile manner such as touch, push, scroll, etc., .

In the figure, the first operation unit 131 is a touch key, but the present invention is not limited thereto. For example, the first operation unit 131 may be a mechanical key, or a combination of a touch key and a touch key.

The contents input by the first and / or second operation units 131 and 132 may be variously set. For example, the first operation unit 131 receives a command such as a menu, a home key, a cancellation, a search, and the like, and the second operation unit 132 adjusts the size of the sound output from the first sound output module 153a And a switch to the touch recognition mode of the display unit 151 and the like.

The microphone 122 is configured to receive a user's voice, other sounds, and the like. The microphone 122 may be provided at a plurality of locations to receive stereophonic sound.

The interface unit 170 is a path for allowing the mobile terminal 100 to exchange data with an external device. For example, the interface unit 170 may include a connection terminal for connecting to an earphone by wire or wireless, a port for short-range communication (for example, an IrDA Port, a Bluetooth Port, a Wireless LAN LAN Port) or the like, or power supply terminals for supplying power to the mobile terminal 100. [ The interface unit 170 may be implemented as a socket for receiving an external card such as a SIM (Subscriber Identification Module) or a UIM (User Identity Module) or a memory card for storing information.

2 is a rear perspective view of the mobile terminal 100 shown in FIG.

Referring to FIG. 2, a second camera 121b may be additionally mounted on the rear surface of the terminal body, that is, the rear case 102. FIG. The second camera 121b may have a photographing direction substantially opposite to that of the first camera 121a (see FIG. 1), and may be a camera having different pixels from the first camera 121a.

For example, the first camera 121a has low pixels so that it is easy to capture a face of a user in the case of a video call or the like and transmit the face to the other party. The second camera 121b photographs a general object and immediately transmits It is preferable to have a high pixel. The first and second cameras 121a and 121b may be installed in the terminal body so as to be able to rotate or pop-up.

A flash 200 and a mirror 124 are additionally disposed adjacent to the second camera 121b. The flash 200 shines light toward a subject when the subject is photographed by the second camera 121b. The mirror 124 enables the user to illuminate the user's own face or the like when the user intends to photograph the user himself / herself (self-photographing) using the second camera 121b.

And a second sound output module 153b may be further disposed on the rear surface of the terminal body. The second sound output module 153b may implement the stereo function together with the first sound output module 153a (see FIG. 1) and may be used for the implementation of the speakerphone mode in a call.

An antenna (not shown) for receiving a broadcast signal may be additionally disposed on the side of the terminal body in addition to an antenna for a call or the like. An antenna constituting a part of the broadcast receiving module may be installed to be able to be drawn out from the terminal body.

The terminal body is provided with a power supply unit 190 for supplying power to the mobile terminal 100. The power supply unit 190 may include a battery 191 built in the terminal body or configured to be detachable from the outside of the terminal body. This figure illustrates that the battery cover 103 is coupled to the rear case 102 so as to cover the battery 191 to restrict the detachment of the battery 191 and to protect the battery 191 from external impact and foreign matter .

Hereinafter, the flash 200 having a simpler structure to be applied to the slim mobile terminal 100 will be described in more detail.

3 is a cross-sectional view showing a portion of the flash 200 of FIG.

Referring to FIG. 3, a circuit board 180 is disposed inside the terminal body. The circuit board 180 may be mounted to the rear case 102 as shown or may be installed in a separate internal structure. The circuit board 180 may be configured as an example of a control unit for operating various functions of the mobile terminal 100.

As shown, the flash 200 is electrically connected to the circuit board 180 and is configured to emit light under the control of the control unit. The flash 200 is operated together with the second camera 121b to compensate for the insufficient amount of light at the time of photographing or photographing the moving picture, or it can be used as a light source that operates independently and illuminates the light in a dark place.

The flash 200 includes a light emitting element 210 and a reflector 220.

The light emitting device 210 is directly mounted on the circuit board 180 by an SMT (Surface Mount Technology) process and is formed to emit light by an applied electrical signal. The light emitting device 210 may be, for example, an LED (Light Emitting Diode) having a high luminance.

The light emitted from the light emitting element 210 spreads in all directions with the light emitting element 210 as a center. To this end, the reflector 220 is mounted on the circuit board 180 so as to surround the light emitting device 210 and reflects the light to enhance the illuminance. The reflector 220 may be formed of a material having a high reflectance (for example, stainless steel (STS)) or may be formed by attaching or forming a metal material to the surface to form a reflecting surface.

The reflector 220 has a first reflecting surface 221a and a second reflecting surface 223a. The second reflecting surface 223a extends from the first reflecting surface 221a and is formed to be inclined with respect to the first reflecting surface 221a. By using the first and second reflection surfaces 221a and 223a to reflect the light at different angles, the utilization efficiency of light can be improved and the light can be displayed in a wider area.

Hereinafter, the structure of the reflector 220 will be described in more detail with an example.

4 is a perspective view of the reflector 220 shown in FIG.

Referring to FIG. 4 together with FIG. 3, the reflector 220 includes a base portion 221, a hollow portion 222, and a protrusion portion 223.

The base portion 221 has a predetermined thickness, and the upper surface forms the first reflecting surface 221a. A hollow portion 222 is formed at a central portion of the base portion 221 to receive the light emitting device 210. The hollow portion 222 may have a shape corresponding to the light emitting device 210. The protrusion 223 protrudes from the base 221 so that the inside of the reflector 220 forms a stepped shape. The inner surface of the projection 223 forms the second reflecting surface 223a and is inclined with respect to the upper surface of the base 221 (that is, the first reflecting surface 221a).

The reflector 220 has the first and second reflective surfaces 221a and 223a in the description of the present embodiment. However, the reflector 220 is not necessarily limited to the reflective surfaces 221a and 223a It is not. For example, the inner circumferential surface of the hollow portion 222, the upper surface of the protruding portion 223, and the like can also be formed as reflective surfaces.

The first and second reflecting surfaces 221a and 223a may be arranged to have the same distance and angle condition around the light emitting element 210. [ For example, the first reflection surface 221a may have a circular shape with the light emitting device 210 as a center, and the second reflection surface 223a may surround the light emitting device 210. According to the above structure, light that can not be directly projected from the light emitted from the light emitting device 210 is uniformly reflected by the first and second reflection surfaces 221a and 223a, It can form a light.

The first reflection surface 221a may be disposed on the same plane as the upper surface of the light emitting device 210 or may be disposed lower than the upper surface of the light emitting device 210. [ The structure can reduce the thickness of the flash 200 as compared with the conventional structure in which the reflector 220 is disposed on the upper surface of the light emitting device 210. As a result, a slimmer mobile terminal 100 can be realized.

5 is a simulation result showing the performance when the second reflection surface 223a of FIG. 4 is inclined at a specific angle.

Referring to FIG. 5 with reference to FIGS. 3 and 4, the first reflecting surface 221a may be formed parallel to the circuit board 180, and the second reflecting surface 223a may be formed with respect to the circuit board 180 / RTI > 5, a part of the light emitted from the light emitting device 210 is reflected by the second reflection surface 223a and the light reflected by the second reflection surface 223a is reflected by the light emitting device (90 ° to 94 °) in the space on the upper surface (210).

3, the lens 230 is disposed on the light emitting device 210 and the reflector 220 so as to diffuse the light directly projected from the light emitting device 210. As shown in FIG. The lens 230 may be formed of a light transmitting synthetic resin, for example, transparent acrylic.

The lens 230 has a convex surface 231 formed on a surface facing the light emitting device 210 so as to diffuse the light. The convex surface 231 may be arranged to be accommodated in a space between the base portion 221 and the protrusion portion 223 of the reflector 220. According to the above structure, the thickness of the flash 200 can be further reduced.

The lens 230 includes a fixed portion 230a and a window portion 230b. The fixing portion 230a is disposed on the circuit board 180 so as to surround the side surface of the reflector 220. [ The window portion 230b protrudes from the fixing portion 230a and is arranged to cover the light emitting element 210 and the reflector 220. [ The outer surface of the window part 230b covering the light emitting device 210 and the reflector 220 may be flat and the convex surface 231 may be formed on the inner surface. The portion of the circuit board 180 corresponding to the window portion 230b may be printed in a black color so as not to be easily exposed when viewed from the outside.

As described above, the circuit board 180 may be mounted to a frame, for example, the rear case 102, or installed in a separate internal structure. In this embodiment, it is seen that the circuit board 180 is mounted on the rear case 102. A hole corresponding to the window portion 230b is formed in the rear case 102 and a pressing portion 102a having a stepped inner side is formed to cover the hole so as to cover the fixed portion 230a of the lens 230 . The pressing portion 102a is configured to press and fix the fixing portion 230a of the lens 230 when coupled with the circuit board 180. [

A cover may be detachably coupled to the frame, and a through hole may be formed in a portion corresponding to the window portion 230b. In this embodiment, the battery cover 103 covering the battery 191 is detachably attached to the rear case 102.

A pad 240 is attached to the upper surface of the protrusion 223 to maximize the exposure of the reflector 220 disposed on the side surface of the light emitting device 210. The pad 240 may be formed of an elastically deformable material to absorb an impact transmitted between the reflector 220 and the lens 230 and may include a reflector 220 and a lens 230 to prevent foreign matter from penetrating into the inside. As shown in Fig. In addition, the pads 240 may be printed in a white-based color to reflect light.

Figs. 6 and 7 are cross-sectional views showing modifications of the flash 200 shown in Fig.

The function, arrangement, and coupling relationship of the configurations other than the reflectors 320 and 420 are as described above. Hereinafter, other structures of the reflectors 320 and 420 will be described. In the following description of the other embodiments of the present invention, the same or similar reference numerals are given to the same or similar components as those of the preceding embodiments, and the description thereof is replaced with the first explanation.

Referring to FIG. 6, the reflector 320 has a plurality of reflecting surfaces 320a, 320b, and 320c that are configured to reflect light at different angles. The plurality of reflective surfaces 320a, 320b, and 320c are formed to be inclined at different angles with respect to the light emitting device 310.

For example, reflective surfaces 320a, 320b and 320c may be formed on the inner circumferential surface forming the hollow portion 322, the upper surface of the base portion 321 and the inner surface of the protruding portion 323, respectively. The reflective surfaces 320a, 320b, and 320c may be inclined with respect to the circuit board 180, and may have different inclination angles. As described above, at least one reflective surface (e.g., the inner surface of the projection 323) may be formed inclined at 43 degrees with respect to the circuit board 180. [

7, the protruding portion 423 of the reflector 420 may be formed to have a curved surface 420b whose inner surface is inclined toward the light emitting device 410. [ The inner circumferential surface 420a of the hollow portion 222 may also be formed to form a reflecting surface and be inclined with respect to the circuit board 180. [ That is, the inner surfaces 420a and 420b of the reflector 420 surrounding the light emitting device 410 are all inclined toward the light emitting device 410, so that the loss of light can be reduced.

The mobile terminal described above is not limited to the configuration and method of the embodiments described above, but the embodiments may be configured by selectively combining all or a part of the embodiments so that various modifications may be made.

Claims (17)

A terminal body having a circuit board;
A light emitting device mounted on the circuit board and configured to emit light by an electrical signal applied thereto; And
And a reflector mounted on the circuit board to surround the light emitting device and configured to reflect the light,
Wherein the reflector has a first reflecting surface and a second reflecting surface extending from the first reflecting surface and inclined with respect to the first reflecting surface,
The reflector includes:
A base portion having a predetermined thickness and having an upper surface as the first reflection surface;
A hollow portion formed to penetrate the base portion to receive the light emitting element; And
Wherein the inside of the reflector is protruded from the base portion so as to form a stepped shape, and an inner surface of the reflector includes a protrusion forming the second reflecting surface,
Wherein the first reflection surface is formed parallel to the circuit board,
Wherein the second reflection surface is formed to be inclined at 43 degrees with respect to the circuit board. A terminal body having a circuit board;
A light emitting device mounted on the circuit board and configured to emit light by an electrical signal applied thereto; And
And a reflector mounted on the circuit board to surround the light emitting device and configured to reflect the light,
Wherein the reflector has a first reflecting surface and a second reflecting surface extending from the first reflecting surface and inclined with respect to the first reflecting surface,
The reflector includes:
A base portion having a predetermined thickness and having an upper surface as the first reflection surface;
A hollow portion formed to penetrate the base portion to receive the light emitting element; And
Wherein the inside of the reflector is protruded from the base portion so as to form a stepped shape, and an inner surface of the reflector includes a protrusion forming the second reflecting surface,
Wherein the first reflection surface is formed to be inclined with respect to the circuit board,
Wherein the second reflection surface is formed to be inclined at 43 degrees with respect to the circuit board. 3. The method according to claim 1 or 2,
Wherein the first reflection surface has a circular shape with the light emitting element as a center. 3. The method according to claim 1 or 2,
Wherein an inner circumferential surface of the hollow portion is formed to be inclined with respect to the circuit board, and the inner circumferential surface forms a third reflective surface. 3. The method according to claim 1 or 2,
Wherein the first reflection surface is disposed on the same plane as the upper surface of the light emitting element or is disposed lower than the upper surface of the light emitting element. delete delete 3. The method according to claim 1 or 2,
Further comprising a lens disposed to cover the light emitting device and the reflector and having a convex surface formed to be convex toward the light emitting device to diffuse the light. 9. The method of claim 8,
Wherein the convex surface is adapted to be received in a space between the base portion and the protruding portion. 9. The method of claim 8,
The lens,
A fixing unit installed on the circuit board and surrounding the side surface of the reflector; And
And a window portion protruded from the fixing portion and arranged to cover the light emitting element and the reflector. delete delete delete delete delete delete delete

Images