KR20160029569A - Mobile terminal - Google Patents

Abstract

To prevent a leakage of light, a mobile terminal in accordance with an embodiment comprises: a case which includes electronic parts, and forms an appearance; a display unit arranged in the case, having an exposed surface; a mold which surrounds a lateral surface intersecting with at least a surface of the display unit; and a total reflection prevention part which prevents the total reflection of light emitted from the display unit on the lateral surface of the display unit. The total reflection prevention part has a recess pattern formed in at least part of the display unit. The mold absorbs light.

Description

[0001] MOBILE TERMINAL [0002]

The present invention has been made in view of the above circumstances, To a mobile terminal.

A terminal can be divided into a mobile terminal (mobile / portable terminal) and a stationary terminal according to whether the terminal can be moved. The mobile terminal can be divided into a handheld terminal and a vehicle mounted terminal according to whether the user can directly carry the mobile terminal.

The functions of mobile terminals are diversified. For example, there are data and voice communication, photographing and video shooting through a camera, voice recording, music file playback through a speaker system, and outputting an image or video on a display unit. Some terminals are equipped with an electronic game play function or a multimedia player function. In particular, modern mobile terminals can receive multicast signals that provide visual content such as broadcast and video or television programs.

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. .

Referring to FIG. 8, a window 151 is formed with a blocking region at the rim to prevent the shape of a light beam at the rim of the display unit 2.

However, among the light generated in the backlight unit, the light traveling to the side of the display unit 2 is totally reflected at the side of the display unit 2 and leaks between the blocking region 151a and the light-transmitting region 151b of the window 151 There is a problem.

In addition, there is a problem that the light emitted to the display unit 2 is reflected by the mold 40 and leaks to between the blocking region 151a and the light-transmitting region 151b of the window 151. [

The present invention is directed to solving the above-mentioned problems and other problems.

Another object is to provide a mobile terminal that prevents the shape of the light gaps in the display unit.

According to an aspect of the present invention, there is provided a mobile terminal comprising: a case having an electronic component positioned therein and forming an external appearance; a display unit disposed inside the case, A mold surrounding at least a side of the display unit and a side of the display unit, the side of the display unit being configured to prevent total reflection of light generated in the display unit, Wherein the mold is a concavo-convex pattern formed at least in part, and the mold absorbs light.

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

Embodiments have the advantage that a concavo-convex pattern is formed on the side surface of the display unit so that the light is totally reflected on the side of the display unit to block light leaking to the window.

In addition, the embodiment has the advantage that the mold absorbs light and blocks light leaking to the window.

Furthermore, the embodiment has an advantage in that the refractive index of the concavo-convex pattern is made smaller than the refractive index of the display unit and larger than the refractive index of air, thereby preventing it from being propagated on the side of the display unit.

1 (a) and 1 (b) are conceptual diagrams showing an example of a mobile terminal according to the present invention in different directions.
2 is a cross-sectional view of the mobile terminal of FIG.
3 is a cross-sectional view of a display unit according to an embodiment of the present invention.
FIG. 4 is an enlarged view of a first half portion according to an embodiment of the present invention.
5 is a reference diagram illustrating the operation of the mobile terminal of the present invention.
6 is a cross-sectional view of a mobile terminal according to another embodiment of the present invention.
7 is a cross-sectional view of a mobile terminal according to another embodiment of the present invention.
8 is a cross-sectional view of a mobile terminal according to the prior art.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals are used to designate identical or similar elements, and redundant description thereof will be omitted. 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. In the following description of the embodiments of the present invention, a detailed description of related arts will be omitted when it is determined that the gist of the embodiments disclosed herein may be blurred. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. , ≪ / RTI > equivalents, and alternatives.

Terms including ordinals, such as first, second, etc., may be used to describe various elements, but the elements are not limited to these terms. The terms are used only for the purpose of distinguishing one component from another.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The singular expressions include plural expressions unless the context clearly dictates otherwise.

In the present application, the terms "comprises", "having", and the like are used to specify that a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

The mobile terminal described in this specification includes a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), a navigation device, a slate PC A tablet PC, an ultrabook, a wearable device such as a smartwatch, a smart glass, and a head mounted display (HMD). have.

However, it will be appreciated by those skilled in the art that the configuration according to the embodiments described herein may be applied to fixed terminals such as a digital TV, a desktop computer, a digital signage, and the like, will be.

 Referring to FIGS. 1A and 1B, 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 folder type, a flip type, a slide type, a swing type, and a swivel type in which a watch type, a clip type, a glass type or two or more bodies are relatively movably coupled . A description of a particular type of mobile terminal, although relevant to a particular type of mobile terminal, is generally applicable to other types of mobile terminals.

Here, the terminal body can be understood as a concept of referring to the mobile terminal 100 as at least one aggregate.

The mobile terminal 100 includes a case (for example, a frame, a housing, a cover, and the like) that forms an appearance. As shown, the mobile terminal 100 may include a front case 101 and a rear case 102. Various electronic components are disposed in the inner space formed by the combination of the front case 101 and the rear case 102. At least one middle case may be additionally disposed between the front case 101 and the rear case 102.

A display unit (2) is disposed on a front surface of the terminal body to output information. The window 151 of the display unit 2 may be mounted on the front case 101 to form a front surface of the terminal body together with the front case 101. [

In some cases, electronic components may also be mounted on the rear case 102. Electronic parts that can be mounted on the rear case 102 include detachable batteries, an identification module, a memory card, and the like. In this case, a rear cover 103 for covering the mounted electronic components can be detachably coupled to the rear case 102. Therefore, when the rear cover 103 is separated from the rear case 102, the electronic parts mounted on the rear case 102 are exposed to the outside.

As shown, when the rear cover 103 is coupled to the rear case 102, a side portion of the rear case 102 can be exposed. In some cases, the rear case 102 may be completely covered by the rear cover 103 during the engagement. Meanwhile, the rear cover 103 may be provided with an opening for exposing the camera 121b and the sound output unit 152b to the outside.

These cases 101, 102, and 103 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.

The mobile terminal 100 may be configured such that one case provides the internal space, unlike the above example in which a plurality of cases provide an internal space for accommodating various electronic components. In this case, a unibody mobile terminal 100 in which synthetic resin or metal is connected from the side to the rear side can be realized.

Meanwhile, the mobile terminal 100 may include a waterproof unit (not shown) for preventing water from penetrating into the terminal body. For example, the waterproof portion is provided between the window 151 and the front case 101, between the front case 101 and the rear case 102, or between the rear case 102 and the rear cover 103, And a waterproof member for sealing the inside space of the oven.

The mobile terminal 100 is provided with a display unit 2, first and second sound output units 152a and 152b, a proximity sensor 141, an illuminance sensor 142, a light output unit 154, Cameras 121a and 121b, first and second operation units 123a and 123b, a microphone 122, an interface unit 160, and the like.

1A and 1B, a display unit 2, a first sound output unit 152a, a proximity sensor 141, a light intensity sensor 142, an optical output unit (not shown) A second operation unit 123b, a microphone 122 and an interface unit 160 are disposed on a side surface of the terminal body, And a mobile terminal 100 having a second sound output unit 152b and a second camera 121b disposed on a rear surface thereof.

However, these configurations are not limited to this arrangement. These configurations may be excluded or replaced as needed, or placed on different planes. For example, the first operation unit 123a may not be provided on the front surface of the terminal body, and the second sound output unit 152b may be provided on the side surface of the terminal body rather than the rear surface of the terminal body.

The display unit 2 displays (outputs) information processed in the mobile terminal 100. [ For example, the display unit 2 may display execution screen information of an application program driven by the mobile terminal 100, or UI (User Interface) and GUI (Graphic User Interface) information according to the execution screen information .

The display unit 2 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, a 3D display, and an e-ink display.

In addition, the display unit 2 may exist in two or more depending on the implementation of the mobile terminal 100. [ In this case, the mobile terminal 100 may be provided with a plurality of display portions spaced apart from each other or disposed integrally with one another, or may be disposed on different surfaces, respectively.

The display unit 2 may include a touch sensor for sensing a touch to the display unit 2 so that a control command can be received by a touch method. When the display unit 2 is touched, the touch sensor senses the touch, and the control unit 180 generates a control command corresponding to the touch based on the touch. 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 sensor is disposed in a film form having a touch pattern and disposed between the window 151 and a display (not shown) on the back surface of the window 151, or a metal wire . Alternatively, the touch sensor may be formed integrally with the display. For example, the touch sensor may be disposed on a substrate of the display or inside the display.

As such, the display unit 2 may form a touch screen with the touch sensor, in which case the touch screen may function as a user input 123 (see FIG. 1A). In some cases, the touch screen may replace at least some functions of the first operation unit 123a.

The first sound output unit 152a may be implemented as a receiver for transmitting a call sound to a user's ear and the second sound output unit 152b may be implemented as a loud speaker for outputting various alarm sounds or multimedia playback sounds. ). ≪ / RTI >

The window 151 of the display unit 2 may be provided with an acoustic hole for emitting sound generated from the first acoustic output unit 152a. However, the present invention is not limited thereto, and the sound may be configured to be emitted along an assembly clearance (for example, a gap between the window 151 and the front case 101) between the structures. In this case, the appearance of the mobile terminal 100 can be made more simple because the hole formed independently for the apparent acoustic output is hidden or hidden.

The optical output unit 154 is configured to output light for notifying the occurrence of an event. Examples of the event include a message reception, a call signal reception, a missed call, an alarm, a schedule notification, an email reception, and reception of information through an application. The control unit 180 may control the light output unit 154 to terminate the light output when the event confirmation of the user is detected.

The first camera 121a processes an image frame of a still image or a moving image obtained by the image sensor in the photographing mode or the video communication mode. The processed image frame can be displayed on the display unit 2 and can be stored in a memory (not shown).

The first and second operation units 123a and 123b may be collectively referred to as a manipulating portion as an example of a user input unit 123 operated to receive a command for controlling the operation of the mobile terminal 100 have. The first and second operation units 123a and 123b can be employed in any manner as long as the user is in a tactile manner such as touch, push, scroll, or the like. In addition, the first and second operation units 123a and 123b may be employed in a manner that the user operates the apparatus without touching the user through a proximity touch, a hovering touch, or the like.

In this figure, the first operation unit 123a is a touch key, but the present invention is not limited thereto. For example, the first operation unit 123a may be a mechanical key, or a combination of a touch key and a touch key.

The contents input by the first and second operation units 123a and 123b can be variously set. For example, the first operation unit 123a receives a command such as a menu, a home key, a cancellation, a search, and the like, and the second operation unit 123b receives a command from the first or second sound output unit 152a or 152b The size of the sound, the switching of the display unit 2 to the touch recognition mode, and the like.

On the other hand, a rear input unit (not shown) may be provided on the rear surface of the terminal body as another example of the user input unit 123. The rear input unit is operated to receive a command for controlling the operation of the mobile terminal 100, and input contents may be variously set. For example, commands such as power on / off, start, end, scrolling, and the like, the size adjustment of the sound output from the first and second sound output units 152a and 152b, And the like can be inputted. The rear input unit may be implemented as a touch input, a push input, or a combination thereof.

The rear input unit may be disposed to overlap with the front display unit 2 in the thickness direction of the terminal body. For example, the rear input unit may be disposed at the rear upper end of the terminal body such that when the user holds the terminal body with one hand, the rear input unit can be easily operated using the index finger. However, the present invention is not limited thereto, and the position of the rear input unit may be changed.

When a rear input unit is provided on the rear surface of the terminal body, a new type of user interface using the rear input unit can be realized. When the first operation unit 123a is not disposed on the front surface of the terminal body in place of at least a part of the functions of the first operation unit 123a provided on the front surface of the terminal body, The display unit 2 can be configured as a larger screen.

Meanwhile, the mobile terminal 100 may be provided with a fingerprint recognition sensor for recognizing the fingerprint of the user, and the controller 180 may use the fingerprint information sensed through the fingerprint recognition sensor as authentication means. The fingerprint recognition sensor may be embedded in the display unit 2 or the user input unit 123.

The microphone 122 is configured to receive the 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 160 is a path through which the mobile terminal 100 can be connected to an external device. For example, the interface unit 160 may include a connection terminal for connection with another device (for example, an earphone or an external speaker), a port for short-range communication (for example, an infrared port (IrDA Port), a Bluetooth port A wireless LAN port, or the like), or a power supply terminal for supplying power to the mobile terminal 100. The interface unit 160 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.

And a second camera 121b may be disposed on a rear surface of the terminal body. In this case, the second camera 121b has a photographing direction which is substantially opposite to that of the first camera 121a.

The second camera 121b may include a plurality of lenses arranged along at least one line. The plurality of lenses may be arranged in a matrix form. When the second camera 121b is configured as an array camera, images can be taken in various ways using a plurality of lenses, and a better quality image can be obtained.

The flash 124 may be disposed adjacent to the second camera 121b. The flash 124 shines light toward the subject when the subject is photographed by the second camera 121b.

And a second sound output unit 152b may be additionally disposed in the terminal body. The second sound output unit 152b may implement a stereo function together with the first sound output unit 152a and may be used for implementing a speakerphone mode in a call.

The terminal body may be provided with at least one antenna for wireless communication. The antenna may be embedded in the terminal body or formed in the case. For example, an antenna constituting a part of the broadcast receiving module 111 (see FIG. 1A) may be configured to be able to be drawn out from the terminal body. Alternatively, the antenna may be formed in a film type and attached to the inner surface of the rear cover 103, or a case including a conductive material may be configured to function as an antenna.

The terminal body is provided with a power supply unit 190 (see FIG. 1A) for supplying power to the mobile terminal 100. The power supply unit 190 may include a battery 191 built in the terminal body or detachable from the outside of the terminal body.

The battery 191 may be configured to receive power through a power cable connected to the interface unit 160. In addition, the battery 191 may be configured to be wirelessly chargeable through a wireless charger. The wireless charging may be implemented by a magnetic induction method or a resonance method (magnetic resonance method).

The rear cover 103 is configured to be coupled to the rear case 102 so as to cover the battery 191 to restrict the release of the battery 191 and to protect the battery 191 from external impact and foreign matter . When the battery 191 is detachably attached to the terminal body, the rear cover 103 may be detachably coupled to the rear case 102.

The mobile terminal 100 may be provided with an accessory that protects the appearance or supports or expands the function of the mobile terminal 100. [ One example of such an accessory is a cover or pouch that covers or accommodates at least one side of the mobile terminal 100. [ The cover or pouch can be configured to interlock with the display unit 2 to expand the function of the mobile terminal 100. [ Another example of an accessory is a touch pen for supplementing or extending a touch input to the touch screen.

FIG. 3 is a cross-sectional view of a display unit according to an embodiment of the present invention, and FIG. 4 is an enlarged view of a first half portion according to an embodiment of the present invention .

Referring to FIG. 2, the mobile terminal 100 of the embodiment includes a case 101 and a case 102 in which an electronic component is positioned and forms an external appearance, a display unit 2 disposed inside the case, A mold 40 that encloses at least a side of the display unit 2 that faces the display unit 2 and a front half portion 50 that prevents total reflection of light generated in the display unit 2 on the side of the display unit 2 .

First, the configuration of the display unit 2 will be described in detail with reference to Fig.

For example, the display unit 2 may include a liquid crystal display 20 and a backlight unit 30 that supplies light to the liquid crystal display 20.

The backlight unit 30 generates light and supplies it to the liquid crystal display 20.

Specifically, the backlight unit 30 is positioned on the back surface of the liquid crystal display device 20 and supplies the surface light to the liquid crystal display device 20. [

The backlight unit (30) has a structure for supplying a uniform surface light to the liquid crystal display (20).

For example, the backlight unit 30 includes a plurality of light source units 320 and a light guide plate 313 that converts light incident from a plurality of light source units 320 into surface light.

The light guide plate 313 may include at least one optical sheet 314 for condensing and diffusing the light incident on the light guide plate 313. The light guide plate 313 may further include a bottom cover 311 for receiving the light guide plate 313 and the plurality of light source units 320 under the light guide plate 313.

Light source 320 may include any means for generating light. For example, the light emitting device 325 may include a plurality of light emitting devices 325 and a circuit board 321 that supplies power to the light emitting device 325 and on which the light emitting device 325 is disposed. However, the present invention is not limited thereto, and the light emitting device 325 may be formed as a package type including the light emitting device 325.

The light emitting device may be a light emitting diode as an example. The light emitting diode may be, for example, a colored light emitting diode that emits light such as red, green, blue, or white, or a UV (Ultra Violet) light emitting diode that emits ultraviolet light.

Also, a plurality of the light source units 320 may be arranged in one row or in multiple rows. 1, they are arranged in one row, but the present invention is not limited thereto.

Specifically, the light emitting device may have a structure in which light emitting devices emitting red, green, or blue light are alternately arranged.

A light emitting element 325 is mounted on the circuit board 321. The circuit board 321 may include, for example, an electrode pattern (not shown) having electrical conductivity and a body having insulation and surrounding the electrode pattern and having an opening (not shown) in which a region of the electrode pattern is exposed have. The light emitting element 325 can be mounted on the electrode pattern.

The circuit board 321 may be disposed on one side of the light guide plate 313, all sides of both sides thereof, and the back side thereof. Preferably, the circuit board 321 may be disposed parallel to the side surface of the light guide plate 313. Of course, the meaning of parallel here does not mean parallelism of mathematical meaning but means parallel to see in the range including the error.

The light guide plate 313 guides the light incident from the light source unit 320. In other words, the incident light can be converted into a plane light to be provided to the optical sheet 314, with the brightness of the incident light being uniform.

The light guide plate 313 may be formed of, for example, polymethylmethacrylate (PMMA) or transparent acrylic resin, in a flat type or wedge type, and may be made of glass, But it is not limited thereto.

Specifically, the light guide plate 313 may be formed in a polygonal shape including at least four sides as long as the upper surface and the upper surface of the surface light source are formed, but the present invention is not limited thereto.

 Scattering agent may be added to the inside of the light guide plate 313, but the present invention is not limited thereto.

The optical sheet 314 functions to condense and diffuse the surface light incident on the light guide plate 313. The optical sheet 314 includes, for example, a diffusion film 314a for diffusing light incident from the light guide plate 313 in the direction of a liquid crystal display panel (not shown) including diffusion particles such as beads, A prism film 314b having a prism pattern formed thereon to condense light at an upper portion of the prism film 314a and a protective film 314c laminated on the upper surface to protect the prism film 314b. However, the present invention is not limited thereto.

The optical sheet 314 can diffuse and condense the light emitted from the light source unit 320 and guided by the light guide plate 313 to secure the brightness and viewing angle.

The diffusion film 314a can scatter and condense the light from the light source section 320 and the feedback light from the prism film 314b to make the brightness uniform.

The diffusion film 314a may have a thin sheet shape and may be formed of a transparent resin. For example, the diffusion film 314a may be formed by coating a film made of polycarbonate or polyester with a resin for light scattering and a light focusing resin. However, the present invention is not limited thereto.

The prism film 314b has a prism pattern formed perpendicularly or horizontally on the surface of the optical film, and condenses light output from the diffusion film 314a.

The prism pattern of the prism film 314b may be formed to have a triangular cross-section to increase the light-condensing efficiency, and the best luminance can be obtained when the vertex angle is 90 ° using a right angle prism.

The protective film 314c may be laminated on the upper surface of the prism film 314b to protect the prism film 314b.

For example, the liquid crystal display device 20 includes a pair of substrates 211 and 212 opposed to each other, a liquid crystal layer 214 sandwiched between the pair of substrates 211 and 212, a pair of substrates 211 and 212 And a sealing layer 215 for sealing the liquid crystal layer 214 between the liquid crystal layer 214 and the liquid crystal layer 214.

Specifically, the pair of substrates 211 and 212 includes a pixel substrate 211 and an opposite substrate 212. [

The pixel substrate 211 may have a film shape of an insulating material. For example, the pixel substrate 211 may be made of a transparent glass material, or may be made of a transparent plastic or a polymer film having excellent flexibility.

A TFT (Thin Film Transistor) element layer 216, a pixel electrode layer 219, a planarization layer 218, and an orientation film 213A are formed on the pixel substrate 211. [

The TFT element layer 216 constitutes a driving circuit for driving the liquid crystal layer 214 disposed in the display pixel region for displaying an image, and is formed for each display pixel. The TFT element layer 216 includes, for example, a transistor of a CMOS (Complementary Metal Oxide Semiconductor) type or a NMOS (Negative Polarity Metal Oxide Semiconductor) type, a capacitor . Although not shown, a control circuit composed of TFT elements for controlling the liquid crystal display device is provided in an outer peripheral region (so-called frame region) surrounding the display pixel region.

The pixel electrode layer 219 may include a conductive material such as In, Co, Si, Ge, Au, Pd, Pt, Ru, Re, Mg, Zn, Hf, Ta, W, Ti, Ag, Cr, Mo, Nb, Al, Ni, Cu, and WTi, or an alloy thereof and may be formed as a single layer or a multilayer.

The pixel electrode layer 219 may be formed of a transparent material such as ITO, IZO (In-ZnO), GZO (Ga-ZnO), AZO (Al- GaZO), IGZO (In-Ga ZnO), IrOx, RuOx, RuOx / ITO, Ni / IrOx / Au and Ni / IrOx / Au / ITO.

The planarization layer 218 has a sufficient thickness to fill the irregularities of the TFT element layer 216 and flatten it. The surface of the planarization layer 218 is in a substantially complete planar state, and a pixel electrode layer 219 is formed thereon. The planarization layer 218 is generally colorless and transparent.

The counter substrate 212 is positioned to face the pixel substrate 211. The counter substrate 212 may be formed of the same material as that of the pixel substrate 211.

A CF layer 220, a common electrode 221 and an orientation film 213B are formed on the counter substrate 212 below the counter substrate 212. [

The CF layer 220 includes a red filter 220A, a green filter 220B and a blue filter 220C. The three color filters are alternately arranged in a repeated manner. The CF layer 220 is formed, for example, by directly spraying a colored solution containing a dye or a pigment on a photosensitive resin film. In the present embodiment, the CF layer 220 is disposed on the side of the counter substrate 212 so as to avoid the upper surface of the sealing layer 215. That is, it is formed only in the frame of the sealing layer 215.

The common electrode 221 is the other electrode for applying a voltage to the liquid crystal layer 214 and continuously extends in a region opposed to the pixel electrode layer 219. A common potential is supplied to the common electrode 221.

The common electrode 221 is made of a transparent electrode material such as indium tin oxide (ITO).

The alignment films 213A and 213B align the liquid crystal layer 214 in a predetermined alignment state. The alignment film 213A is formed so as to cover the pixel electrode layer 219 in the pixel substrate 211. [

On the other hand, the alignment film 213B is formed on the counter substrate 212 so as to cover the common electrode 221. [

The liquid crystal layer 214 modulates the incident light by changing the alignment state in accordance with the application of a voltage between the pixel electrode layer 219 and the common electrode 221. The liquid crystal mode is not particularly limited and may be, for example, ECB (Electrically Controlled Birefringence) mode or VA (Vertical Alignment) mode.

Further, any liquid crystal material can be used for the liquid crystal layer 214.

The sealing layer 215 seals (encapsulates) a space formed between these substrates in order to seal the liquid crystal layer 214 between the pixel substrate 211 and the counter substrate 212.

The liquid crystal layer 214 is formed in a space between the pixel substrate 211 and the counter substrate 212.

The sealing layer 215 seals the liquid crystal layer 214 between the pixel substrate 211 and the counter substrate 212.

The sealing layer 215 is preferably a reflective material reflecting light incident from the inside.

The window 151 covers at least one side of the display unit 2 that is exposed.

Specifically, the window 151 is supported on the front case 101

The window 151 may include a blocking region 151a to prevent the shape of the light beam at the edge of the display unit 2.

More specifically, the window 151 includes a blocking region 151a which surrounds at least a part of the light transmitting region 151b and the light transmitting region 151b through which light passes at the center and forms at least a part of the rim of the window 151 can do.

Here, the light-transmissive region 151b may be formed of a transparent material, and the blocking region 151a may be formed of a different material that blocks light.

As another example, the blocking region 151a may be formed by applying a light blocking material to the window 151. [

This blocking area 151a is positioned to overlap with the rim of the display unit 2 to block light emitted from the rim of the display unit 2.

Preferably, the blocking region 151a is formed so as to project further in the center direction of the display unit 2 than the side face of the display unit 2. [

The window 151 and the display unit 2 can be joined together by the adhesive member 80. [

Specifically, the adhesive member 80 can be placed on the rim of the display unit 2. [

The mold 40 provides a space in which the display unit 2 is located. Further, the mold 40 protects the display unit 2 from the outside.

For example, the mold 40 may be arranged so as to enclose at least a side intersecting with one surface of the display unit 2.

As another example, the mold 40 may be disposed so as to surround the side surface and the back surface of the display unit 2.

Here, the front surface of the display unit 2 refers to the surface positioned in the upper direction in Fig. 2, and the back surface means the surface positioned in the opposite direction.

As another example, the mold 40 may be formed integrally with the case 101 (102). That is, the mold 40 may form a space in which the case is recessed or protruded to place the display unit 2 therein.

At this time, the bottom cover 311 of the display unit 2 may be omitted.

When the mold 40 reflects light, there is a problem that light emitted through the side surface of the display unit 2 leaks between the blocking region 151a of the window 151 and the light-transmitting region 151b.

Accordingly, the mold 40 may include a material that absorbs light that flows out through the side of the display unit 2.

The mold 40 may be a black body that absorbs light.

The front half portion 50 prevents the light incident on the side surface of the display unit 2 from being totally reflected.

For example, the front half portion 50 may be a concave-convex pattern formed on at least a part of the side surface of the display unit 2. [

Here, the concavo-convex pattern can be defined as a side surface of the display unit 2 being made of a non-planar surface.

In addition, the concavo-convex pattern may be formed to have various shapes such as a cylinder, a polygonal column, a cone, a polygonal pyramid, a truncated cone, a polygonal pyramid, and the like.

Such irregular patterns may have a random or regular size, and may be arranged irregularly or regularly.

For example, the concavo-convex pattern may have a surface which is not flat on the display unit 2, and may be joined to the side surface of the display unit 2 as a separate component.

Specifically, as shown in Fig. 3, the concavo-convex pattern is coupled to the outside of the side surface of the display unit 2. Fig.

More specifically, the first half 50 can be formed on the side surfaces of the pair of substrates 211 and 212. That is, the first half 50 may include a first half sidewall 510 formed on a side surface of the pixel substrate 211 and a second half sidewall 520 formed on a side of the counter substrate 212 have.

Therefore, light incident on the side surfaces of the substrates by the uneven pattern is prevented from being totally reflected, and the light advances in the direction of the mold 40.

Referring to FIG. 4, a plurality of mountains 511 may be formed in which the width of the concavo-convex pattern decreases as the shape of the concavo-convex pattern progresses from the side of the display unit 2 toward the outside.

The plurality of mountains 511 may be formed to have a triangular cross-section, and the vertex angle is preferably 90 degrees.

The material of the plurality of mountains 511 may be the same material as the display unit 2 or may be a different material.

Preferably, in order to reduce the refractive index between the display unit 2 and the air interface to prevent total reflection at the interface of the display unit 2 and air, the refractive index of the plurality of acids 511 is smaller than the refractive index of the substrates, Lt; / RTI >

5 is a reference diagram illustrating the operation of the mobile terminal of the present invention.

5, when the mobile terminal is operated, the display unit 2 is operated.

The display unit 2 converts the light generated by the backlight unit 30 into various images by the liquid crystal display device 20.

At this time, among the light generated by the backlight unit 30, the light traveling to the side of the display unit 2 is prevented from total reflection by the front half portion 50 and proceeds in the direction of the mold 40.

Since the mold 40 absorbs light, the light transmitted to the mold 40 is absorbed by the mold 40.

Therefore, light leakage phenomenon is prevented between the blocking region 151a and the light-transmitting region 151b of the window 151. [

6 is a cross-sectional view of a mobile terminal according to another embodiment of the present invention.

Compared with the embodiment of FIG. 2, the mobile terminal 100A according to the embodiment of FIG. 6 has a difference in the method of forming the first half portion 50A.

Referring to Fig. 6, the concavo-convex pattern of the embodiment can be formed by etching the side surface of the display unit 2.

For example, the way in which the display unit 2 is etched may be wet etching, dry etching.

7 is a cross-sectional view of a mobile terminal according to another embodiment of the present invention.

The mobile terminal 100B according to the embodiment of FIG. 7 further includes a reflecting member 60 as compared with the embodiment of FIG.

7, the reflecting member 60 of the embodiment reflects off the side surface of the display unit 2 to block the light traveling between the blocking region 151a and the light-transmitting region 151b of the window 151. FIG.

The reflecting member 60 is reflected by the mold 40 of the light emitted from the side of the display unit 2 to block the light traveling between the blocking region 151a and the light transmitting region 151b of the window 151 do.

Specifically, the reflective member 60 is positioned at the top of the display unit 2 to block light traveling between the blocking region 151a of the window 151 and the light-transmitting region 151b.

More specifically, the reflective member 60 covers at least an area overlapping the blocking area 151a in the display unit 2. [ When the blocking region 151a of the window 151 is disposed at the edge of the window 151, the reflecting member 60 is also disposed on the upper portion of the display unit 2 along the edge of the window 151. [

The reflecting member 60 is formed so as to protrude further toward the center of the display unit 2 than the blocking region 151a of the window 151. [

In addition, the reflective member 60 is positioned on the top of the mold 40 to cover the mold 40. Further, the reflective member 60 is positioned so as to overlap with the rim of the display unit 2 at the upper portion of the display unit 2.

The reflection member 60 may be formed of a material having a good reflection property, for example, a material composed of Ag, Ni, Al, Rh, Pd, Ir, Ru, Mg, Zn, Pt, Au, .

Light reflected by the reflective member 60 is reabsorbed in the mold 40.

The foregoing detailed description should not be construed in all aspects as limiting 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
2: Display unit
50: First half branch

Claims (8)

A case in which an electronic part is positioned and forms an appearance;
A display unit (2) disposed inside the case and having one side exposed;
A mold (40) surrounding at least a side intersecting at least one surface of the display unit; And
The display unit includes a front side barrier (50) for preventing total reflection of light generated in the display unit,
The total reflection prevention unit may include:
A concavo-convex pattern formed on at least a part of a side surface of the display unit,
Wherein the mold absorbs light. The method according to claim 1,
Wherein the concavo-convex pattern is formed by etching a side surface of the display unit. The method according to claim 1,
Wherein the concavo-convex pattern includes a plurality of acids coupled to the outside of the side of the display unit. The method of claim 3,
The display unit includes:
A pair of substrates facing each other,
A liquid crystal layer sandwiched between the pair of substrates,
And a sealing layer sealing the liquid crystal layer between the pair of substrates,
And the concavo-convex pattern is positioned on a side surface of the pair of substrates. 5. The method of claim 4,
Wherein a refractive index of the plurality of acids is smaller than a refractive index of the substrates and larger than a refractive index of air. 5. The method of claim 4,
A window covering at least one exposed surface of the display unit,
And a blocking region disposed at the rim of the window and positioned to overlap the rim of the display unit to block light emitted from the rim of the display unit. The method according to claim 1,
Wherein the mold is formed integrally with the case. The method according to claim 6,
Further comprising a reflective member located on top of the display unit,
Wherein the reflective member covers at least an area overlapping the blocking area in the display unit.

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