KR20190140384A - Mobile terminal - Google Patents

Abstract

Provided is a mobile terminal for solving a problem of a light of a display entering a hole or a light entering the hole which enters the display when an electronic configuration is provided in the hole provided in the display, comprising: a cover glass; a display panel provided on a rear surface of the cover glass to form a plurality of layers; a cut-out area formed in at least one layer of the plurality of layers; a side surface optical shielding film provided on a side surface of the at least one layer exposed to the outside by the cut-out area; and a front surface optical shielding film provided in one area adjacent to the cut-out area of the cover glass.

Description

Mobile terminal {MOBILE TERMINAL}

The present invention relates to a mobile terminal having a display having a cut-out area such as a hole or notch.

Attempts have been made to implement display regions of various shapes in accordance with the demand for maximizing the display region.

For example, a camera hole for providing a camera in the display area may be implemented.

When the electronic configuration is provided in a hole provided in the display, a problem may occur in that light of the display flows into the hole or, conversely, light introduced into the hole flows into the display.

An object of the present invention is to solve the problem of light inflow that may occur in the display having the above-mentioned problem.

According to an aspect of the present invention to achieve the above or another object, a cover glass, a display panel provided on the back of the cover glass to form a plurality of layers, cut-out formed in at least one layer of the plurality of layers An area, a side optical shielding film provided on a side of the at least one layer exposed to the outside by the cut-out area, and a front optical shielding film provided in one area adjacent to the cut-out area of the cover glass. Provides a mobile terminal.

According to another aspect of the present invention, the display panel is a liquid crystal display (LCD) including a liquid crystal (Liquid Crystal) layer, the cut-out area is formed in all of the plurality of layers except the liquid crystal layer And an auxiliary optical shielding film provided in one region adjacent to the cut-out region of the liquid crystal layer.

According to another aspect of the present invention, there is provided a mobile terminal further comprising an optical sensor provided inside the cut-out area or behind the cut-out area.

According to another aspect of the present invention, the optical sensor includes a camera sensor, the camera sensor includes a lens barrel and an image sensor, the lens barrel is provided inside the cut-out area, The image sensor provides a mobile terminal, which is located behind the cut-out area.

In addition, according to another aspect of the invention, the rearmost of the display panel is provided with a backlight unit layer,

The image sensor provides a mobile terminal, wherein the image sensor is bonded to a region adjacent to the cut-out region of the backlight unit layer.

According to another aspect of the present invention, the display panel includes organic light emitting diodes (OLED), the rearmost layer of the display panel is a cushion tape layer, and the cushion tape layer is wider than the cut-out area. It provides a mobile terminal characterized in that to form a seating area of the optical sensor.

In addition, according to another aspect of the present invention, the cut-out area provides a mobile terminal, characterized in that to form a step of increasing the cross-sectional area toward the layer located in front.

In addition, according to another aspect of the present invention, the side optical shielding film includes a black ink, and provides a mobile terminal, characterized in that applied to the side by the spray 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, to prevent light that may be introduced into the display or camera hole.

Further scope of the applicability of the present invention will become apparent from the following detailed description. However, various changes and modifications within the spirit and scope of the present invention can be clearly understood by those skilled in the art, and therefore, specific embodiments, such as the detailed description and the preferred embodiments of the present invention, are given by way of example only. Should be.

1A is a block diagram illustrating a mobile terminal related to the present invention.
1B and 1C are conceptual views of one example of a mobile terminal, viewed from different directions.
2 is a front view of a mobile terminal related to the present invention.
3 is a sectional view taken along the line AA ′ of FIG. 2.
4 is a sectional view taken along line AA ′ of FIG. 2.
5 and 6 are two embodiments of a cross-sectional view taken along the line BB ′ of FIG. 2, which is assumed to be an LCD display panel.
7 and 8 are two embodiments of a cross-sectional view taken along the BB ′ direction of FIG. 2, which is assumed to be an OLED display panel.
FIG. 9 illustrates another embodiment of the BB ′ direction cross-section of FIG. 2.
FIG. 10 illustrates a sequence of steps for forming the mobile terminal of FIG. 9.

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings, and the same or similar components are denoted by the same reference numerals regardless of the reference numerals, and redundant description thereof will be omitted. 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. In addition, in describing the embodiments disclosed herein, when it is determined that the detailed description of the related known technology may obscure the gist of the embodiments disclosed herein, the detailed description thereof will be omitted. In addition, the accompanying drawings are intended to facilitate understanding of the embodiments disclosed herein, but are not limited to the technical spirit disclosed herein by the accompanying drawings, all changes included in the spirit and scope of the present invention. It should be understood to include equivalents and substitutes.

The mobile terminal described herein includes a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant, a portable multimedia player, a navigation, a slate PC , Tablet PCs, ultrabooks, wearable devices, such as smartwatches, glass glasses, head mounted displays, and the like. have.

However, it can be applied to fixed terminals such as digital TVs, desktop computers, digital signage, etc., except that the configuration according to the embodiments described herein is applicable only to mobile terminals. It's easy for a technician to know.

1A to 1C, FIG. 1A is a block diagram illustrating a mobile terminal according to the present invention, and FIGS. 1B and 1C are conceptual views of one example of the mobile terminal, viewed from different directions.

The mobile terminal 100 includes a wireless communication unit 110, an input unit 120, a sensing unit 140, an output unit 150, an interface unit 160, a memory 170, a controller 180, and a power supply unit 190. ) May be included. The components shown in FIG. 1A are not essential to implementing a mobile terminal, so that the mobile terminal described herein may have more or fewer components than those listed above.

More specifically, the wireless communication unit 110 of the components, between the mobile terminal 100 and the wireless communication system, between the mobile terminal 100 and another mobile terminal 100, or the mobile terminal 100 and the external server It may include one or more modules that enable wireless communication therebetween. In addition, the wireless communication unit 110 may include one or more modules for connecting the mobile terminal 100 to one or more networks.

The wireless communication unit 110 may include at least one of the broadcast receiving module 111, the mobile communication module 112, the wireless internet module 113, the short range communication module 114, and the location information module 115. .

The input unit 120 may include a camera 121 or an image input unit for inputting an image signal, a microphone 122 for inputting an audio signal, an audio input unit, or a user input unit 123 for receiving information from a user. , Touch keys, mechanical keys, and the like. The voice data or the image data collected by the input unit 120 may be analyzed and processed as a control command of the user.

The sensing unit 140 may include one or more sensors for sensing at least one of information in the mobile terminal, surrounding environment information surrounding the mobile terminal, and user information. For example, the sensing unit 140 may include a proximity sensor 141, an illumination sensor 142, an illumination sensor, a touch sensor, an acceleration sensor, a magnetic sensor, and gravity. G-sensor, Gyroscope Sensor, Motion Sensor, RGB Sensor, Infrared Sensor, Infrared Sensor, Finger Scan Sensor, Ultrasonic Sensor Optical sensors (e.g. cameras 121), microphones (see 122), battery gauges, environmental sensors (e.g. barometers, hygrometers, thermometers, radiation detection sensors, Thermal sensors, gas sensors, etc.), chemical sensors (eg, electronic noses, healthcare sensors, biometric sensors, etc.). Meanwhile, the mobile terminal disclosed herein may use a combination of information sensed by at least two or more of these sensors.

The output unit 150 is used to generate an output related to sight, hearing, or tactile sense, and includes at least one of a display unit 151, an audio output unit 152, a hap tip module 153, and an optical output unit 154. can do. The display unit 151 forms a layer structure with or is integrally formed with the touch sensor, thereby implementing a touch screen. The touch screen may function as a user input unit 123 that provides an input interface between the mobile terminal 100 and the user, and may also provide an output interface between the mobile terminal 100 and the user.

The interface unit 160 serves as a path to various types of external devices connected to the mobile terminal 100. The interface unit 160 connects a device equipped with a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, and an identification module. It may include at least one of a port, an audio input / output (I / O) port, a video input / output (I / O) port, and an earphone port. In the mobile terminal 100, in response to an external device being connected to the interface unit 160, appropriate control associated with the connected external device may be performed.

In addition, the memory 170 stores data supporting various functions of the mobile terminal 100. The memory 170 may store a plurality of application programs or applications driven in the mobile terminal 100, data for operating the mobile terminal 100, and instructions. At least some of these applications may be downloaded from an external server via wireless communication. In addition, at least some of these application programs may exist on the mobile terminal 100 from the time of shipment for basic functions of the mobile terminal 100 (for example, a call forwarding, a calling function, a message receiving, and a calling function). The application program may be stored in the memory 170 and installed on the mobile terminal 100 to be driven by the controller 180 to perform an operation (or function) of the mobile terminal.

In addition to the operation related to the application program, the controller 180 typically controls the overall operation of the mobile terminal 100. The controller 180 may provide or process information or a function appropriate to a user by processing signals, data, information, and the like, which are input or output through the above-described components, or by driving an application program stored in the memory 170.

In addition, the controller 180 may control at least some of the components described with reference to FIG. 1A in order to drive an application program stored in the memory 170. Furthermore, the controller 180 may operate by combining at least two or more of the components included in the mobile terminal 100 to drive the application program.

The power supply unit 190 receives power from an external power source and an internal power source under the control of the controller 180 to supply power to each component included in the mobile terminal 100. The power supply unit 190 includes a battery, which may be a built-in battery or a replaceable battery.

At least some of the components may operate in cooperation with each other to implement an operation, control, or control method of the mobile terminal according to various embodiments described below. In addition, the operation, control, or control method of the mobile terminal may be implemented on the mobile terminal by driving at least one application program stored in the memory 170.

1B and 1C, the disclosed mobile terminal 100 includes a terminal body in the form of a bar. However, the present invention is not limited thereto, and the present invention can be applied to various structures such as a watch type, a clip type, a glass type, or a folder type, a flip type, a slide type, a swing type, a swivel type, and two or more bodies which are coupled to be movable relative. . Although related to a particular type of mobile terminal, a description of a particular type of mobile terminal may generally apply to other types of mobile terminals.

Herein, the terminal body may be understood as a concept that refers to the mobile terminal 100 as at least one aggregate.

The mobile terminal 100 includes a case (eg, a frame, a housing, a cover, etc.) forming an external 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 internal 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.

The display unit 151 may be disposed in front of the terminal body to output information. As shown, the window 151a of the display unit 151 may be mounted to the front case 101 to form a front surface of the terminal body together with the front case 101.

In some cases, an electronic component may be mounted on the rear case 102. Electronic components attachable to the rear case 102 include a removable battery, an identification module, a memory card, and the like. In this case, the rear cover 102 may be detachably coupled to the rear case 102 to cover the mounted electronic component. Therefore, when the rear cover 103 is separated from the rear case 102, the electronic components mounted on the rear case 102 are exposed to the outside.

As illustrated, when the rear cover 103 is coupled to the rear case 102, a portion of the side surface of the rear case 102 may be exposed. In some cases, the rear case 102 may be completely covered by the rear cover 103 during the coupling. On the other hand, the rear cover 103 may be provided with an opening for exposing the camera 121b or the sound output unit 152b to the outside.

The cases 101, 102, and 103 may be formed by injecting a synthetic resin, or may be formed of a metal, for example, stainless steel (STS), aluminum (Al), titanium (Ti), or the like.

The mobile terminal 100 may be configured such that one case may provide 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, the mobile terminal 100 of the unibody that the synthetic resin or metal from the side to the rear may be implemented.

On the other hand, the mobile terminal 100 may be provided with a waterproof portion (not shown) to prevent water from seeping into the terminal body. For example, the waterproof portion is provided between the window 151a 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 combination thereof. It may include a waterproof member for sealing the inner space.

The mobile terminal 100 includes a display unit 151, first and second sound output units 152a and 152b, a proximity sensor 141, an illuminance sensor 142, an optical output unit 154, and first and second units. The cameras 121a and 121b, the first and second manipulation units 123a and 123b, the microphone 122, the interface unit 160, and the like may be provided.

Hereinafter, as illustrated in FIGS. 1B and 1C, the display unit 151, the first sound output unit 152a, the proximity sensor 141, the illuminance sensor 142, and the light output unit may be disposed on the front surface of the terminal body. 154, the first camera 121a and the first operation unit 123a are disposed, and the second operation unit 123b, the microphone 122, and the interface unit 160 are disposed on the side of the terminal body. The mobile terminal 100 in which the second sound output unit 152b and the second camera 121b are disposed on the rear surface of the mobile terminal 100 will be described as an example.

However, these configurations are not limited to this arrangement. These configurations may be excluded or replaced as needed or disposed on other sides. For example, the first manipulation 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 of the terminal body instead of the rear surface of the terminal body.

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, the display unit 151 may display execution screen information of an application program driven in the mobile terminal 100 or user interface (UI) and graphical user interface (GUI) information according to the execution screen information. .

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), and a flexible display (flexible display). display, a 3D display, or an e-ink display.

In addition, two or more display units 151 may exist according to an implementation form of the mobile terminal 100. In this case, the 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.

The display unit 151 may include a touch sensor that senses a touch on the display unit 151 so as to receive a control command by a touch method. By using this, when a touch is made to the display unit 151, the touch sensor may sense the touch, and the controller 180 may generate a control command corresponding to the touch based on the touch sensor. The content input by the touch method may be letters or numbers or menu items that can be indicated or designated in various modes.

Meanwhile, the touch sensor is formed of a film having a touch pattern and disposed between the window 151a and the display (not shown) on the rear surface of the window 151a or directly patterned on the rear surface of the window 151a. It can also be Alternatively, the touch sensor may be integrally formed with the display. For example, the touch sensor may be disposed on a substrate of the display or provided in the display.

As such, the display unit 151 may form a touch screen together with the touch sensor. In this case, the touch screen may function as the user input unit 123 (see FIG. 1A). In some cases, the touch screen may replace at least some functions of the first manipulation unit 123a.

The first sound output unit 152a may be implemented as a receiver for transmitting a call sound to the user's ear, and the second sound output unit 152b may be a loud speaker for outputting various alarm sounds or multimedia reproduction sounds. It can be implemented in the form of).

A sound hole for emitting sound generated from the first sound output unit 152a may be formed in the window 151a of the display unit 151. However, the present invention is not limited thereto, and the sound may be configured to be emitted along an assembly gap between the structures (for example, a gap between the window 151a and the front case 101). In this case, an externally formed hole may be invisible or hidden for sound output, thereby simplifying the appearance of the mobile terminal 100.

The light output unit 154 is configured to output light for notifying when an event occurs. Examples of the event may include message reception, call signal reception, missed call, alarm, schedule notification, email reception, information reception through an application, and the like. When the user's event confirmation is detected, the controller 180 may control the light output unit 154 to end the light output.

The first camera 121a processes an image frame of a still image or a moving image obtained by the image sensor in a shooting mode or a video call mode. The processed image frame may be displayed on the display unit 151 and stored in the memory 170.

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

In the drawing, the first operation unit 123a is illustrated as being a touch key, but the present invention is not limited thereto. For example, the first manipulation unit 123a may be a mechanical key or a combination of a touch key and a push key.

The contents input by the first and second manipulation units 123a and 123b may be variously set. For example, the first operation unit 123a receives a command such as a menu, a home key, a cancellation, a search, etc., and the second operation unit 123b is output from the first or second sound output units 152a and 152b. The user may receive a command such as adjusting the volume of the sound and switching to the touch recognition mode of the display unit 151.

Meanwhile, as another example of the user input unit 123, a rear input unit (not shown) may be provided on the rear surface of the terminal body. The rear input unit is manipulated to receive a command for controlling the operation of the mobile terminal 100, and the input contents may be variously set. For example, commands such as power on / off, start, end, scroll, etc., control of the volume of sound output from the first and second sound output units 152a and 152b, and the touch recognition mode of the display unit 151. Commands such as switching can be received. The rear input unit may be implemented in a form capable of input by touch input, push input, or a combination thereof.

The rear input unit may be disposed to overlap the front display unit 151 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 so that the user can easily manipulate the index body when the user grips the terminal body with one hand. However, the present invention is not necessarily limited thereto, and the position of the rear input unit may be changed.

As such, when the rear input unit is provided at the rear of the terminal body, a new type user interface using the same may be implemented. In addition, when the touch screen or the rear input unit described above replaces at least some functions of the first operation unit 123a provided in the front of the terminal body, the first operation unit 123a is not disposed on the front of the terminal body. The display unit 151 may be configured with a larger screen.

Meanwhile, the mobile terminal 100 may be provided with a fingerprint recognition sensor for recognizing a user's fingerprint, and the controller 180 may use fingerprint information detected through the fingerprint recognition sensor as an authentication means. The fingerprint recognition sensor may be embedded in the display unit 151 or the user input unit 123.

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 and configured to receive stereo sound.

The interface unit 160 serves as a path for connecting the mobile terminal 100 to an external device. For example, the interface unit 160 may be connected to another device (eg, an earphone or an external speaker), a port for short-range communication (for example, an infrared port (IrDA port), a Bluetooth port (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 in the form of a socket for receiving an external card such as a subscriber identification module (SIM) or a user identity module (UIM), a memory card for storing information.

The second camera 121b may be disposed on the rear surface of the terminal body. In this case, the second camera 121b has a photographing direction 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 format. Such a camera may be referred to as an 'array camera'. When the second camera 121b is configured as an array camera, images may be photographed in various ways using a plurality of lenses, and images of better quality may 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.

The second sound output unit 152b may be additionally disposed on 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 to implement a speakerphone mode during a call.

The terminal body may be provided with at least one antenna for wireless communication. The antenna may be built in the terminal body or formed in the case. For example, an antenna that forms part of the broadcast receiving module 111 (refer to FIG. 1A) may be configured to be pulled out from the terminal body. Alternatively, the antenna may be formed in a film type and attached to the inner side of the rear cover 103, or may be configured such that a case including a conductive material functions 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 embedded in the terminal body or detachably configured 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 enable wireless charging through a wireless charger. The wireless charging may be implemented by a magnetic induction method or a resonance method (magnetic resonance method).

Meanwhile, in the drawing, the rear cover 103 is coupled to the rear case 102 to cover the battery 191 to limit the detachment of the battery 191 and to protect the battery 191 from external shock and foreign matter. To illustrate. When the battery 191 is detachably configured to the terminal body, the rear cover 103 may be detachably coupled to the rear case 102.

An accessory may be added to the mobile terminal 100 to protect the appearance or to assist or expand the function of the mobile terminal 100. An example of such an accessory may be a cover or pouch that covers or accommodates at least one surface of the mobile terminal 100. The cover or pouch may be configured to be linked with the display unit 151 to expand the function of the mobile terminal 100. Another example of the accessory may be a touch pen for assisting or extending a touch input to a touch screen.

2 is a front view of a mobile terminal 100 according to the present invention.

The front of the mobile terminal 100 is provided with a front camera, a proximity sensor, a receiver, an optical output unit and a display 200.

The display 200 may have a meaning similar to that of the display unit 151 described above, but is closer to the concept of the area.

Conventionally, the display 200 and the remaining components are divided, so that the remaining components are provided in the bezel 231, but the remaining components in the display 200 according to the recent needs of minimizing the bezel 231 and maximizing the display 200 area. At least a portion of the form is provided.

In order to mount some components in the display 200, the display 200 may form a cut-out area 210. For example, the cut-out area 210 may be a notch area of a notch display, or a hole area inside the display 200 as shown in FIG. 2.

In the embodiments of the present invention, the cut-out area 210 is described on the premise that the hole area is formed inside the display 200 as shown in FIG. 2. However, the present invention is not limited thereto, and the present invention may be applied to any form in which the cut-out area 210 is formed in the display 200, such as the notch display form described above.

3 is a cross-sectional view taken along the line A-A 'of FIG. 2, and FIG. 4 is a cross-sectional view taken along the line A-A' of FIG. 2. Reference is made to FIG. 2 for convenience of description.

The mobile terminal 100 has a display panel 201. The front surface of the display panel 201 may be provided with a cover glass 202 for protecting the display panel 201. An optically clear adhesive (OCA) film 203 may be provided between the display panel 201 and the cover glass 202 to bond both components.

As shown in FIG. 3, in the case of the display panel 201 in the form of a liquid crystal display (LCD), the backlight unit 204 is provided behind the display panel 201.

The display panel 201 has a stacked structure of a plurality of layers.

The LCD-type display panel 201 includes an upper polarizer 2011, a color filter (C / F) layer 2012, a liquid crystal 2013, a TFT (Thin Film Transistor) layer 2014, and a lower part from the front. The polarizing plates 2015 may be stacked in this order.

The color filter layer 2012 selectively transmits the light emitted from the backlight unit 204 in RGB. The liquid crystal 2013 rotates and serves to transmit or block light. The TFT layer 2014 forms an electric field in the liquid crystal 2013 to rotate the liquid crystal 2013.

Meanwhile, the OLED display panel 201 as shown in FIG. 4 includes a polarizer 2016, encapsulation (2017), thin film transistor (TFT) 2018, and poly-imide (PI) layer 2019 from the front. May be provided stacked. Unlike the LCD display panel 201, the cushion tape 205 may be provided at the rear of the OLED display panel 201 instead of the backlight unit 204.

Since the configuration provided in the LCD-type display panel 201 among the configurations of the OLED-type display panel 201 plays the same role as the configuration, overlapping description thereof will be omitted. Encapsulation 2017 refers to an organic or inorganic layer that protects the OLED from moisture or impurities. The TFT 2018 constitutes an internal circuit for driving each pixel. The PI layer 2019 serves as a substrate for depositing TFTs 2018, OLEDs and encapsulations 2017. The cushion tape 205 serves to alleviate the shock applied to the display panel 201 and to reduce heat generation.

5 and 6 are two exemplary embodiments of a cross-sectional view along the line B-B 'of FIG. 2, which is assumed to be the LCD display panel 201.

A cut-out area 210 for mounting the electronic component 310 may be formed in at least one layer of the plurality of layers of the display panel 201.

The electronic component 310 mounted in the cut-out area 210 may be at least one of the above-described components such as the front camera, the proximity sensor, the receiver, and the light output unit.

The cut-out area 210 may be protected from the outside by the cover glass 202 located at the front side.

The front optical shielding film 221 may be provided in one area of the cover glass 202 adjacent to the cut-out area 210. The front optical shielding film 221 mainly serves to prevent an area where a screen is not output from being viewed from the outside.

The side optical shielding layer 230 may be provided on a side of at least one layer having the cut-out area 210 of the display panel 201.

The side optical shielding layer 230 prevents light from entering the cut-out area 210 from the display panel 201 or entering the display panel 201 from the cut-out area 210.

The side optical shielding film 230 is particularly necessary when the electronic configuration 310 is an optical sensor such as a camera or a proximity sensor. When the optical sensor senses an object outside the mobile terminal 100 penetrating the cover glass 202, the light of the display panel 201 prevents noise from being generated.

The side optical shielding film 230 may be made of a black material. The side optical shield 230 of the black material absorbs light better than otherwise, minimizing light transmission or reflection.

Side optical shielding film 230 is preferably provided for the entire inner peripheral surface of the cut-out area 210.

As shown in the embodiment of FIG. 5, when the entirety of the plurality of layers of the display panel 201 constitute the cut-out area 210, the side optical shielding layer 230 is formed on the side of the entire layer, as shown in the embodiment of FIG. 6. When some layers of the display panel 201 do not form the cut-out area 210, the side optical shielding layer 230 is formed only on the sides of the layers except for the cut-out area 210. The layer that does not form the cut-out area 210 may be, in particular, the liquid crystal 2013.

As illustrated in FIG. 6, when the liquid crystal 2013 does not form the cut-out area 210, no separate cutting process is required. Therefore, there is an advantage that a high process yield can be obtained.

However, in the exemplary embodiment of FIG. 6, the side optical shielding layer 230 may not be provided in the layer where the cut-out area 210 is not formed. Accordingly, light between the inside of the cut-out area 210 and the display panel 201 may flow through the corresponding layer. In order to minimize this, the auxiliary optical shielding layer 222 may be provided in one region adjacent to the cut-out region 210 of the corresponding layer.

Due to the auxiliary optical shielding layer 222, it is possible to minimize the diffuse reflection of light on the layer. The auxiliary optical shielding film 222 may be provided on the front surface of the corresponding layer that does not form the cut-out area 210, or may be provided on the rear surface, or in both cases.

The left and right widths of the auxiliary optical shielding film 222 may be the same as the left and right widths of the front optical shielding film 221 described above. This is to minimize the non-reflective probability of light at the same time, while minimizing the increase in the non-output region generated by the provision of the shielding film.

7 and 8 illustrate two exemplary embodiments of the cross-sectional view taken along the line B-B 'of FIG. 2, which is assumed to be the OLED display panel 201.

The above-described features of the cut-out area 210 of the LCD display panel 201 may be equally applied to the OELD display panel 201 within a range that does not contradict.

The electronic component 310 provided in the cut-out area 210 of the display panel 201 may be a camera sensor 311.

The camera sensor 311 may correspond to the first camera 121a or the second camera 121b described above.

The camera sensor 311 includes a lens barrel 3111 for mounting the lenses and an image sensor 3112 positioned behind the lens barrel 3111.

The lens barrel 3111 may be provided in the cut-out area 210, and the image sensor 3112 may be provided in the rear of the cut-out area 210. When the bracket including the image sensor 3112 or the image sensor 3112 is provided at the rear of the cut-out area 210, the camera sensor 311 may be prevented from being separated through the cut-out area 210. The camera sensor 311 may be fixed to the display panel 201.

An adhesive material for fixing to each other may be provided between the image sensor 3112 and the rear surface of the display panel 201.

FIG. 7 illustrates a form in which the image sensor 3112 is fixed to the rear surface of the cushion tape 205 located at the rear of the display panel 201, and FIG. 8 illustrates a cushion tape in an area corresponding to the image sensor 3112 to be seated. 205 is dropped and the display panel 201 and the image sensor 3112 are fixed.

In the case of FIG. 7, since the cushion tape 205 is provided over the entire area, the shock from the image sensor 3112 as well as the external shock may be alleviated.

On the other hand, in the case of Figure 8 there is an effect of reducing the thickness of the entire structure by the thickness of the cushion tape 205.

FIG. 9 illustrates another embodiment of the cross-section B-B 'of FIG. 2.

Although the embodiment of FIG. 9 illustrates a state of deformation based on the embodiment of FIG. 5, a plurality of layers forming the cut-out area 210 within a range that does not contradict each other, the cross-sectional area toward the layer located in front This stepped 211 can be formed wider.

When the step 211 is formed, when the black ink for forming the side optical shielding film 230 is applied in front of the cut-out area 210, it is evenly sprayed without a layer in which printing is omitted, thereby improving shielding reliability. . In addition, since the shape of the step 211 corresponds to an angle of view of an optical sensor such as a camera sensor, the display output area can be prevented from being reduced.

FIG. 10 is a flowchart illustrating a process of forming the mobile terminal 100 of FIG. 9.

Referring to FIG. 10A, the protective film 206 may be coupled to the front and rear surfaces of the display panel 201 and the backlight unit 204 except for the cover glass 202. In the bonded state in which the protective film 206 is bonded, black ink may be applied in front of the bonded body.

The applied black ink may then undergo a curing process.

Referring to FIG. 10 (b), the protective film 206 on the front side and the protective film 206 on the back side are removed from the cured binder. The ink area which was unnecessarily applied in the removal process of the protective film 206 is also removed.

Referring to FIG. 10 (c), the cover glass 202 is coupled to the assembly in which the protective film 206 is removed. In this case, the front optical shielding film described above may be printed on the rear surface of the cover glass 202. The cover glass 202 is coupled to the display panel 201, and is required to be positioned so that the front optical shielding film of the cover glass 202 is not obscured by an angle of view of an optical sensor such as the camera sensor 311.

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.

The scope of the present invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the present invention are included in the scope of the present invention.

100: mobile terminal 200: display
201: display panel 2011: upper polarizer
2012: color filter layer 2013: liquid crystal
2014: TFT layer 2015: lower polarizer
2016: Polarizer 2017: Encapsulation
2018: TFT 2019: PI Layer
202: cover glass 203: OCA film
204: backlight unit 205: cushion tape
206: protective film 210: cut-out area
211: step 221: front optical shielding film
222: auxiliary optical shielding film 230: side optical shielding film
310: electronic configuration 311: camera sensor
3111: lens barrel 3112: image sensor

Claims (8)

Cover glass;
A display panel provided on a rear surface of the cover glass to form a plurality of layers;
A cut-out area formed on at least one layer of the plurality of layers;
A side optical shielding film provided on a side of the at least one layer exposed to the outside by the cut-out area; And
And a front optical shielding film provided in an area adjacent to the cut-out area of the cover glass. According to claim 1,
The display panel is a liquid crystal display (LCD) including a liquid crystal (Liquid Crystal) layer,
The cut-out area is formed in all of the plurality of layers except the liquid crystal layer,
And an auxiliary optical shielding film provided in one region adjacent to the cut-out region of the liquid crystal layer. According to claim 1,
And an optical sensor provided inside the cut-out area or behind the cut-out area. The method of claim 3, wherein
The optical sensor comprises a camera sensor,
The camera sensor,
Lens barrel; And
Including an image sensor,
And the lens barrel is provided inside the cut-out area, and the image sensor is located behind the cut-out area. The method of claim 4, wherein
The rearmost of the display panel is provided with a backlight unit layer,
And the image sensor is bonded to an area of the back surface of the backlight unit layer adjacent to the cut-out area. The method of claim 3, wherein
The display panel includes organic light emitting diodes (OLED),
The rearmost layer of the display panel is a cushion tape layer,
The cushion tape layer is wider than the cut-out area to form a seating area of the optical sensor. According to claim 1,
The cut-out area is a mobile terminal, characterized in that for forming a step of increasing the cross-sectional area toward the layer located in front. The method of claim 7, wherein
The side optical shielding film includes black ink and is applied to the side surface by a spraying method.

Images