WO2022114766A1

WO2022114766A1 - Electronic device including foreign object-prevention structure

Info

Publication number: WO2022114766A1
Application number: PCT/KR2021/017372
Authority: WO
Inventors: 석상엽; 최종철
Original assignee: 삼성전자 주식회사
Priority date: 2020-11-24
Filing date: 2021-11-24
Publication date: 2022-06-02

Abstract

An electronic device including a foreign object-prevention structure is provided. The electronic device according to embodiments of the present invention comprises: a main body unit; a flexible display which is loaded into and unloaded from the main body unit; and a display housing unit supporting the flexible display, the electronic device including: an opening portion formed by an end of an area of the main body unit, in which the flexible display is loaded and unloaded, and a surface of the flexible display, which faces the end with a gap therebetween; a foreign object accommodation space formed by the inner surface of the main body unit and a display surface of the flexible display and connected to the opening portion; an electrode portion which is spaced apart from the surface of the flexible display in a region near the opening portion and captures, by an electrostatic force, foreign objects flowing into the opening portion; and a gas tube which is disposed to be spaced apart from the surface of the flexible display in the foreign object accommodation space, has a gas outlet oriented to generate, by emitting gas, a gas flow flowing from the foreign object accommodation space toward the opening portion, and performs a gas discharging action through the gas flow.

Description

Electronic device including foreign object prevention structure

Various embodiments disclosed in this document relate to a slideable or rollable electronic device, and more particularly, to an electronic device having a foreign object prevention structure.

In an electronic device, particularly a portable electronic device, a large-area display is advantageous for utilization of digital content, but it is advantageous to have a small form-factor for portability and ease of use. With the advent of flexible displays applying technologies such as organic light emitting diodes (OLEDs), rollable or slideable displays equipped with flexible displays to solve the above contradictions and to mount large-area displays in a small form factor. BACKGROUND Electronic devices have been proposed as a promising type of next-generation portable electronic devices.

A rollable or slideable electronic device may have a structure in which a flexible display is inserted and received through an opening formed in a body portion. Such an opening may serve as a passage through which a foreign object such as dust is introduced into the rollable or slideable electronic device. The introduced foreign material may scratch the surface of the flexible display, damage the sliding mechanism inside the rollable or slideable electronic device, and cause an electrical failure such as a short circuit to the substrate and components.

A conventional rollable or slideable electronic device may include physical means such as a seal, a sweeper, and a scraper in an opening for blocking and discharging foreign substances. These physical means must be in close contact with the display surface for blocking and discharging foreign substances, which may cause frictional force when the display is drawn in and out. The frictional force may adversely affect the user experience received by the user when the display is driven in and out. can

Various embodiments disclosed in this document may provide an electronic device including a structure that blocks foreign substances in a non-contact manner.

An electronic device according to embodiments of the present invention includes a flexible display; a body part into which the flexible display is drawn in and out; an opening formed by the end of the area where the flexible display of the main body is put in and out and the surface of the flexible display facing the end with a gap; a foreign material accommodating space formed by the inner surface of the main body and the display surface of the flexible display and connected to the opening; an electrode part located apart from the surface of the flexible display in an area adjacent to the opening and collecting foreign substances introduced into the opening by electrostatic force; and a gas outlet disposed to be spaced apart from the surface of the flexible display in the foreign material accommodating space and directed to generate a gas flow flowing from the foreign material accommodating space in the direction of the opening by discharging gas, It may include a gas tube that performs a foreign object discharge action through the.

In some embodiments, the emitted gas is air, and the electronic device may include: a conduit for supplying the air to the gas tube; and a blower installed in the main body and connected to the pipe to supply the air to the gas tube through the pipe.

In other embodiments, the electronic device is located upstream of the electrode unit with respect to the flow direction of the gas in the opening and spaced apart from the display surface of the flexible display, and an auxiliary gas that assists in discharging foreign substances by additionally emitting the gas tube may be included.

In some embodiments, the electrode part may include a charging electrode that discharges electric charges to charge the foreign material, and a collecting electrode that absorbs the foreign material charged by the charging electrode by electrostatic attraction. In some embodiments, the charging electrode may emit ions by corona discharge, and the dust collecting electrode may have a polarity opposite to the charge of the ions.

In some embodiments, the body part has a recess formed on an inner surface of the body part facing the flexible display introduced into the body part, and the foreign material accommodating space is a region corresponding to the recessed part among the inner surfaces of the body part and a space between the recess and the flexible display facing it. In some embodiments, the shape of the region corresponding to the recessed portion on the inner surface of the body portion is configured such that the cross-sectional area of the foreign material accommodation space becomes gradually smaller with respect to the flow direction of the gas in the foreign material accommodation space, , the foreign material receiving space may increase the flow rate of the gas flow toward the opening.

In some embodiments, the flexible display may include a physical foreign material removing member that is provided at the end of the flexible display in the retracted direction to follow the withdrawing operation of the flexible display. The physical foreign material removing member may include at least one of a brush, a sweeper, and a scraper.

In some embodiments, the gas tube is installed in a region where the physical foreign material removing member is located when the flexible display is pulled out, and the physical foreign material member moves in accordance with the withdrawing operation of the flexible display to move the inside of the electronic device of the foreign material into the foreign material accommodation space, and the gas tube may discharge the foreign material in the foreign material accommodation space moved by the physical foreign material member in the direction of the opening.

In some embodiments, when the gas tube of the electronic device discharges gas, the electrode unit may stop collecting foreign substances.

In some embodiments, when the operation of withdrawing and withdrawing the flexible display is performed, the electrode unit does not perform foreign material collection, the gas tube performs a foreign material discharge operation, and the operation of depositing and withdrawing the flexible display is stopped In this case, the electrode unit may collect foreign substances, and the gas tube may stop gas discharge. The foreign material and the gas tube of the electrode part may operate intermittently with at least one time interval.

In some embodiments, the electronic device includes a foreign material detection sensor for measuring a foreign material concentration in the surrounding environment, and the time interval is shortened when the foreign material concentration detected by the foreign material detection sensor is high, and extended when the foreign material concentration is low can be

In some embodiments, the electronic device may include: a display housing for supporting the retracting and withdrawing operations of the flexible display; and a physical foreign material blocking member positioned between the main body and the display housing and sealing a gap between the main body and the display housing to block the inflow of foreign matter.

An electronic device according to another embodiment of the present invention is an electronic device including a main body and a flexible display panel that is drawn into or drawn out from one end of the main body by a sliding action, wherein the flexible display panel on the inner surface of the main body is an electrode part located in an area adjacent to one end, spaced apart from the surface of the flexible display, and collecting foreign substances introduced into the opening by electrostatic force; and a gas tube disposed to be spaced apart from the surface of the flexible display on the inner surface of the body portion and having a gas outlet directed to discharge gas in a direction in which the flexible display is withdrawn from the inside of the body portion. In some embodiments, the gas includes air, and a conduit extending from the gas tube to supply the air to the gas tube; and a blower installed in the main body and connected to the pipe to supply the air to the gas tube through the pipe.

In some embodiments, the electrode part has a polarity opposite to the charge of the charged electrode and the ions emitted by the charging electrode to charge the foreign material by emitting ions by corona discharge, and adsorbs the charged foreign material by electrostatic attraction It may include a collecting electrode.

In some embodiments, when the operation of withdrawing and withdrawing the flexible display is performed, the electrode unit does not perform foreign material collection, the gas tube performs a foreign material discharge operation, and the operation of depositing and withdrawing the flexible display is stopped In this case, the electrode unit may collect foreign substances, and the gas tube may stop gas discharge. In some embodiments, when the operation of withdrawing and withdrawing the flexible display is performed, the electrode unit does not perform foreign material collection, the gas tube performs a foreign material discharge operation, and the operation of depositing and withdrawing the flexible display is stopped In this case, the electrode unit may collect foreign substances, and the gas tube may stop gas discharge.

According to various embodiments disclosed in this document, the electronic device may include a foreign material blocking structure for collecting and discharging foreign substances that may cause internal failure of the electronic device, thereby increasing the reliability of the electronic device.

The electronic device may include a structure capable of blocking, collecting, and/or discharging foreign substances in a non-contact manner, thereby preventing damage to the display surface. The user's convenience can be improved by reducing friction during the display's putting in and out operation.

In connection with the description of the drawings, the same or similar reference numerals may be used for the same or similar components.

1 is a block diagram of an electronic device in a network environment, according to various embodiments of the present disclosure;

2A is a front view, a side view, and a plan view illustrating a state in which a flexible display panel of an electronic device is drawn in or drawn out according to various embodiments of the present disclosure;

2B is a front view and a plan view illustrating a sliding operation of an electronic device according to various embodiments of the present disclosure;

2C is an exploded perspective view illustrating internal components of an electronic device according to various embodiments of the present disclosure;

3A is a perspective view illustrating a front surface of a display unit of an electronic device;

3B is a perspective view illustrating a rear surface of a display unit of an electronic device;

3C is an enlarged perspective view illustrating a display guide portion of a side surface of a display unit of an electronic device;

4A is a perspective view of a main body of an electronic device according to various embodiments of the present disclosure;

4B is an enlarged perspective view of a main body of an electronic device according to various embodiments of the present disclosure;

4C is a perspective plan view illustrating an arrangement of internal components of an electronic device according to various embodiments of the present disclosure;

5 is a side cross-sectional view illustrating components of an electronic device according to various embodiments of the present disclosure;

6 is an enlarged view illustrating an electrode unit according to various embodiments of the present disclosure;

7A is a flowchart illustrating a foreign object blocking operation of the electronic device 101 according to an embodiment of the present invention.

7B is an enlarged cross-sectional view illustrating the operation of the electrode part 311 and the gas tube 321 of the electronic device 101 according to an embodiment of the present invention.

7C is an enlarged cross-sectional view illustrating the operation of the foreign material receiving space 32 according to an embodiment of the present invention.

8A is a cross-sectional view illustrating an operation in which a flexible display of an electronic device is drawn out according to embodiments of the present disclosure;

8B is a cross-sectional view illustrating an operation in a state in which withdrawal of a flexible display of an electronic device is completed according to embodiments of the present invention.

8C is a cross-sectional view illustrating the operation of the electrode unit in a state in which the loading/unloading operation of the flexible display of the electronic device is stopped according to embodiments of the present invention.

8D is a cross-sectional view illustrating an operation in which a flexible display of an electronic device is retracted according to embodiments of the present disclosure;

8E is a cross-sectional view illustrating an operation in which a flexible display of an electronic device is retracted according to embodiments of the present disclosure;

9 is an enlarged cross-sectional view of a part of a main body and a fixed housing of an electronic device according to embodiments of the present disclosure;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In these drawings, for example, the size and shape of the member may be exaggerated for convenience and clarity of description, and in actual implementation, deformation of the illustrated shape may be expected. Accordingly, embodiments of the present invention should not be construed as limited to the specific shapes of the regions shown herein.

Reference signs to members in the drawings refer to the same members throughout the drawings. Also, as used herein, the term “and/or” includes any one and all combinations of one or more of those listed items.

Examples of the present invention are provided to more completely explain the present invention to those of ordinary skill in the art, and the following examples may be modified in various other forms, and the scope of the present invention is as follows It is not limited to an Example. Rather, these examples are provided so that this disclosure will be more thorough and complete, and will fully convey the spirit of the invention to those skilled in the art.

The terminology used herein is used to describe the embodiment, and is not intended to limit the scope of the present invention. Also, although the singular is used herein, the plural form may be included unless the context clearly indicates the singular. Also, as used herein, the terms “comprise” and/or “comprising” refer to a referenced shape, number, step, action, member, element, and/or entity that specifies the existence of the group. and does not exclude the presence or addition of other shapes, numbers, movements, members, elements and/or groups.

As used herein, “below”, “above”, “upper”, “lower”, “horizontal” or “vertical” A relative term such as , as shown in the drawings, may be used to describe the relationship that one constituent member, layer or region has with another constituent member, layer or region. It should be understood that these terms encompass not only the directions indicated in the drawings, but also other directions.

1 is a block diagram of an electronic device 101 in a network environment 100 according to various embodiments of the present disclosure. Referring to FIG. 1 , in a network environment 100 , an electronic device 101 communicates with an electronic device 102 through a first network 198 (eg, a short-range wireless communication network) or a second network 199 . It may communicate with the electronic device 104 or the server 108 through (eg, a long-distance wireless communication network). According to an embodiment, the electronic device 101 may communicate with the electronic device 104 through the server 108 . According to an embodiment, the electronic device 101 includes a processor 120 , a memory 130 , an input device 150 , a sound output device 155 , a display device 160 , an audio module 170 , and a sensor module ( 176 , interface 177 , haptic module 179 , camera module 180 , power management module 188 , battery 189 , communication module 190 , subscriber identification module 196 , or antenna module 197 . ) may be included. In some embodiments, at least one of these components (eg, the display device 160 or the camera module 180 ) may be omitted or one or more other components may be added to the electronic device 101 . In some embodiments, some of these components may be implemented as one integrated circuit. For example, the sensor module 176 (eg, a fingerprint sensor, an iris sensor, or an illuminance sensor) may be implemented while being embedded in the display device 160 (eg, a display).

The processor 120, for example, executes software (eg, the program 140 ) to execute at least one other component (eg, a hardware or software component) of the electronic device 101 connected to the processor 120 . It can control and perform various data processing or operations. According to one embodiment, as at least part of data processing or operation, the processor 120 converts commands or data received from other components (eg, the sensor module 176 or the communication module 190 ) to the volatile memory 132 . may be loaded into the volatile memory 132 , and may process commands or data stored in the volatile memory 132 , and store the resulting data in the non-volatile memory 134 . According to an embodiment, the processor 120 includes a main processor 121 (eg, a central processing unit or an application processor), and a secondary processor 123 (eg, a graphic processing unit, an image signal processor) that can operate independently or together with the main processor 121 . , a sensor hub processor, or a communication processor). Additionally or alternatively, the auxiliary processor 123 may be configured to use less power than the main processor 121 or to be specialized for a specified function. The auxiliary processor 123 may be implemented separately from or as a part of the main processor 121 .

The auxiliary processor 123 is, for example, on behalf of the main processor 121 while the main processor 121 is in an inactive (eg, sleep) state, or the main processor 121 is active (eg, executing an application). ), together with the main processor 121, at least one of the components of the electronic device 101 (eg, the display device 160, the sensor module 176, or the communication module 190) It is possible to control at least some of the related functions or states. According to an embodiment, the co-processor 123 (eg, an image signal processor or a communication processor) may be implemented as part of another functionally related component (eg, the camera module 180 or the communication module 190). have.

The memory 130 may store various data used by at least one component of the electronic device 101 (eg, the processor 120 or the sensor module 176 ). The data may include, for example, input data or output data for software (eg, the program 140 ) and instructions related thereto. The memory 130 may include a volatile memory 132 or a non-volatile memory 134 .

The program 140 may be stored as software in the memory 130 , and may include, for example, an operating system 142 , middleware 144 , or an application 146 .

The input device 150 may receive a command or data to be used in a component (eg, the processor 120 ) of the electronic device 101 from the outside (eg, a user) of the electronic device 101 . The input device 150 may include, for example, a microphone, a mouse, a keyboard, or a digital pen (eg, a stylus pen).

The sound output device 155 may output a sound signal to the outside of the electronic device 101 . The sound output device 155 may include, for example, a speaker or a receiver. The speaker can be used for general purposes such as multimedia playback or recording playback, and the receiver can be used to receive an incoming call. According to one embodiment, the receiver may be implemented separately from or as part of the speaker.

The display device 160 may visually provide information to the outside of the electronic device 101 (eg, a user). The display device 160 may include, for example, a display, a hologram device, or a projector and a control circuit for controlling the corresponding device. According to an embodiment, the display device 160 may include a touch circuitry configured to sense a touch or a sensor circuit (eg, a pressure sensor) configured to measure the intensity of a force generated by the touch. have.

The audio module 170 may convert a sound into an electric signal or, conversely, convert an electric signal into a sound. According to an embodiment, the audio module 170 acquires a sound through the input device 150 , or an external electronic device (eg, a sound output device 155 ) connected directly or wirelessly with the electronic device 101 . The sound may be output through the electronic device 102 (eg, a speaker or headphones).

The sensor module 176 detects an operating state (eg, power or temperature) of the electronic device 101 or an external environmental state (eg, user state), and generates an electrical signal or data value corresponding to the sensed state. can do. According to an embodiment, the sensor module 176 may include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, It may include a temperature sensor, a humidity sensor, or an illuminance sensor.

In various embodiments, the electronic device 101 may include a foreign material detection sensor 176a.

The foreign material detection sensor 176a may collect information on the foreign material concentration in the external environment in which the electronic device is located. The foreign object detection sensor 176a includes an IR LED and an optical receiver, and when there is a foreign object in the surrounding environment, an optical dust sensor that detects scattered light of infrared rays emitted from the IR LED, or various known dust detection sensors similar thereto can

The interface 177 may support one or more specified protocols that may be used by the electronic device 101 to directly or wirelessly connect with an external electronic device (eg, the electronic device 102 ). According to an embodiment, the interface 177 may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

The connection terminal 178 may include a connector through which the electronic device 101 can be physically connected to an external electronic device (eg, the electronic device 102 ). According to an embodiment, the connection terminal 178 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector).

The haptic module 179 may convert an electrical signal into a mechanical stimulus (eg, vibration or movement) or an electrical stimulus that the user can perceive through tactile or kinesthetic sense. According to an embodiment, the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

The camera module 180 may capture still images and moving images. According to an embodiment, the camera module 180 may include one or more lenses, image sensors, image signal processors, or flashes.

The power management module 188 may manage power supplied to the electronic device 101 . According to an embodiment, the power management module 388 may be implemented as, for example, at least a part of a power management integrated circuit (PMIC).

The battery 189 may supply power to at least one component of the electronic device 101 . According to one embodiment, battery 189 may include, for example, a non-rechargeable primary cell, a rechargeable secondary cell, or a fuel cell.

The communication module 190 is a direct (eg, wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (eg, the electronic device 102, the electronic device 104, or the server 108). It can support establishment and communication performance through the established communication channel. The communication module 190 may include one or more communication processors that operate independently of the processor 120 (eg, an application processor) and support direct (eg, wired) communication or wireless communication. According to one embodiment, the communication module 190 is a wireless communication module 192 (eg, a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 194 (eg, : It may include a LAN (local area network) communication module, or a power line communication module). A corresponding communication module among these communication modules is a first network 198 (eg, a short-range communication network such as Bluetooth, Wi-Fi direct, or infrared data association (IrDA)) or a second network 199 (eg, a cellular network, the Internet). , or through a computer network (eg, a telecommunication network such as a LAN or WAN) to communicate with an external electronic device. These various types of communication modules may be integrated into one component (eg, a single chip) or may be implemented as a plurality of components (eg, multiple chips) separate from each other. The wireless communication module 192 uses the subscriber information (eg, International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module 196 within a communication network such as the first network 198 or the second network 199 . The electronic device 101 may be identified and authenticated.

The antenna module 197 may transmit or receive a signal or power to the outside (eg, an external electronic device). According to an embodiment, the antenna module may include one antenna including a conductor formed on a substrate (eg, a PCB) or a radiator formed of a conductive pattern. According to an embodiment, the antenna module 197 may include a plurality of antennas. In this case, at least one antenna suitable for a communication method used in a communication network such as the first network 198 or the second network 199 is connected from the plurality of antennas by, for example, the communication module 190 . can be selected. A signal or power may be transmitted or received between the communication module 190 and an external electronic device through the selected at least one antenna. According to some embodiments, other components (eg, RFIC) other than the radiator may be additionally formed as a part of the antenna module 197 .

At least some of the components are connected to each other through a communication method between peripheral devices (eg, a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)) and a signal ( eg commands or data) can be exchanged with each other.

According to an embodiment, the command or data may be transmitted or received between the electronic device 101 and the external electronic device 104 through the server 108 connected to the second network 199 . Each of the

electronic devices

102 and 104 may be the same or a different type of device from the electronic device 101 . According to an embodiment, all or a part of operations executed by the electronic device 101 may be executed by one or more of the external

electronic devices

102 , 104 , or 108 . For example, when the electronic device 101 is to perform a function or service automatically or in response to a request from a user or other device, the electronic device 101 may perform the function or service itself instead of executing the function or service itself. Alternatively or additionally, one or more external electronic devices may be requested to perform at least a part of the function or the service. One or more external electronic devices that have received the request may execute at least a part of the requested function or service, or an additional function or service related to the request, and transmit a result of the execution to the electronic device 101 . The electronic device 101 may process the result as it is or additionally and provide it as at least a part of a response to the request. For this purpose, for example, cloud computing, distributed computing, or client-server computing technology may be used.

2A is a front view, a side view, and a plan view illustrating a state in which the flexible display 161 of the electronic device 101 is retracted or drawn out according to various embodiments of the present disclosure.

2B is a front view and a plan view illustrating a sliding operation of the electronic device 101 according to various embodiments of the present disclosure.

2C is an exploded perspective view illustrating internal components of the electronic device 101 according to various embodiments of the present disclosure.

2A and 2C , the electronic device 101 may include a display unit 2 , a body unit 3 , a substrate unit 4 , an interior body 5 and/or a rear cover 6 . have.

The display unit 2 may include a flexible display 161 and/or a display housing unit 21 . The display housing unit 21 may support the flexible display 161 while performing an opening/closing operation for putting the flexible display 161 in and out. In this specification, 'withdrawal' may be used as a term referring to an operation in which the flexible display 161 is drawn into or withdrawn into the electronic device 101 .

The display unit 2 is configured so that the flexible display 161 can be drawn into or pulled out of the electronic device 101 , thereby maintaining a small size when the electronic device 101 is carried. However, it has the advantage of utilizing a large display area.

The body part 3 supports the display part 2 and may include a space for the flexible display 161 to be introduced thereinto. The substrate unit 4 is an electrical component of the electronic device 101, for example, the processor 120, communication module 190, memory 130, sensor module 176, camera module 180 of FIG. 1 connecting terminal ( 178) and components such as the battery 189 may be mounted and may be an area in which electrical connection is made. The interior body 5 can support the substrate portion 4 and the components mounted on the substrate portion 4 with respect to the rear cover 6 . The back cover 6 protects the internal components of the electronic device by covering the rear surface of the electronic device 101 .

3A is a perspective view illustrating the front of the display unit 2 of the electronic device 101 .

3B is a perspective view illustrating a rear surface of the display unit 2 of the electronic device 101 .

3C is an enlarged perspective view illustrating a portion of the display guide 2122 on the side of the display unit 2 of the electronic device 101 .

Referring to FIG. 3A , the display unit 2 may include a flexible display 161 and a display housing unit 21 . The display housing unit 21 supports the flexible display 161 and may move according to an in/out operation. The display housing unit 21 may include a sliding housing 211 , a fixed housing 212 , and/or a flexible support member 215 .

The sliding housing 211 may be coupled to one end 161a of the flexible display 161 in an open direction to slide with respect to the electronic device.

The flexible support member 215 may be in contact with the rear surface of the display surface of the flexible display 161 , and may support and guide the flexible display 161 in the process of putting the flexible display 161 in and out. In some embodiments, the flexible support member 215 may include a multi-bar articulated structure.

The fixed housing 212 is fixedly coupled to the electronic device 101 , and is slidably coupled to the other end 161b of the flexible display 161 . In some embodiments, the fixed housing 212 may include a plurality of housing guides 2121 .

Referring to FIG. 3B , the housing guide 2121 may guide the sliding operation of the sliding housing. In some embodiments, the housing guide 2121 may be a guide groove formed in the fixed housing 212 , and the sliding housing may include a plurality of housing guide protrusions 2111 slidably coupled to the housing guide 2121 . .

Referring to FIG. 3C , in some embodiments, the fixed housing 212 may include a display guide 2122 for guiding the loading/unloading operation of the flexible display 161 . The display guide 2122 may be a plate in which the display guide groove 2123 is formed. The shape of the display guide groove 2123 may follow the path of the other end 161b of the flexible display 161 when the flexible display 161 is put in and out. In a region adjacent to the other end 161b of the flexible display 161, the flexible support member 215 is slidably fastened to the display guide groove 2123 to prevent the flexible display 161 from leaving the display guide protrusion ( 2151) may be included.

4A is a perspective view of the main body 3 of the electronic device 101 according to various embodiments of the present disclosure.

4B is an enlarged perspective view of the main body 3 of the electronic device 101 according to various embodiments of the present disclosure.

4C is a perspective plan view illustrating an arrangement of internal components of the electronic device 101 according to various embodiments of the present disclosure.

An enlarged perspective view of FIG. 4B is an enlarged view of a portion indicated by a dotted line in FIG. 4A .

4A , 4B and 4C , the body part may include a coupling space 30 , an electrode part 311 , a gas tube 321 , and/or an auxiliary gas tube 322 .

Referring to FIG. 4A , the coupling space 30 is formed inside the main body 3 , and the fixed housing 212 is coupled to the body 3 and may be a space for the flexible display 161 to be introduced. .

4A and 4B , the body part 3 may include an electrode part 311 and/or a gas tube 321 .

The electrode part 311 may collect foreign objects. On the inner surface of the portion 3a into which the flexible display 161 is introduced in the coupling space 30 of the main body 3, the electrode part extends in either the long axis or the short axis of the main body 3 to be positioned. can The gas tube 321 may discharge gas to the outside of the electronic device 101 . The gas tube 321 may be positioned on the inner surface of the main body 3 to extend in any one of the major axis or the minor axis of the main body. In some embodiments, a groove for mounting the electrode part 311 and the gas tube 321 is formed on the inside of the body part 3, and the electrode part 311 and the gas tube 321 have a surface of the body part ( 3) can be inserted into the groove to be exposed on the inner surface.

Referring to FIG. 4C , in various embodiments, when the gas emitted from the gas tube 321 is air, the electronic device 101 provides a conduit 33 and a conduit for supplying the air to the gas tube 321 . It may include a blower 34 connected to the 33 and supplying the air to the gas tube 321 through the conduit 33 . In some embodiments, the blower 34 may be mounted on the substrate portion 4 , and the conduit 33 may extend from one end of the gas tube 321 to be connected to the blower 34 . In some embodiments, the blowing device 34 is a conduit fan, such as an axial fan, a centrifugal fan, a sirocco fan, a cross flow fan, a Coanda effect fan, or the like. It may be a technical means for generating a positive pressure and a flow of air within. In some embodiments, an air intake port may be formed in at least one of a side surface or a rear cover of the main body 3 to pass air to the blower 34 .

The cross-section of FIG. 5 is a cross-section taken along the A-A' direction of FIG. 2A.

Referring to FIG. 5 , an electronic device 101 according to various embodiments of the present disclosure includes a body portion, a flexible display 161 , an opening 31 , a foreign material receiving space 32 , an electrode portion 311 , and a gas tube. (321).

The opening 31 may be defined as an area existing between one end of the main body 3 through which the flexible display 161 is put in and out and the display surface of the flexible display 161 spaced apart from the one end at a predetermined distance. . Since the opening 31 is an open space to the outside, a foreign object may be introduced into the electronic device 101 through the opening 31 . In order to prevent the inflow of foreign substances, the distance between the flexible display 161 and the main body portion in the opening 31 is preferably set to a minimum required for the in-and-out operation of the flexible display 161 .

The electrode part 311 collects foreign substances passing through the opening 31 by electrostatic force. The electrode part 311 is located in a region close to the opening 31 on the inner surface of the main body 3 to prevent foreign matter from flowing into the electronic device 101 through the opening 31 and causing a malfunction. may have an effect. The detailed configuration and operation of the electrode part 311 will be described later.

The foreign material receiving space 32 is connected to the opening 31 and may be located between the inner surface of the main body 3 and the display surface of the flexible display 161 . In some embodiments, the body portion 3 may have a recessed portion 3b on the inner surface to form the foreign material receiving space 32 .

The foreign material accommodating space 32 may exist within the electronic device 101 , between the inner surface of the main body 3 and the display surface of the flexible display 161 . The foreign material accommodating space 32 may be connected to the opening 31 , and foreign substances introduced through the opening 31 may be accumulated in the foreign material receiving space 32 .

The gas tube 321 may be located on the inner surface of the main body 3 in the foreign material receiving space 32 . The gas tube 321 may discharge gas into the foreign material accommodating space 32 , and may generate a gas flow 321a flowing from the foreign material receiving space 32 in the direction of the opening 31 . To this end, the gas tube 321 may have at least one gas outlet 3211a , and the gas outlet 3211a may be directed from the foreign material receiving space 32 toward the opening 31 . The gas flow 321a may perform an action of discharging foreign matter from the inside of the foreign material receiving space 32 through the opening 31 .

In some embodiments, the electronic device 101 may include an auxiliary gas tube 322 . The auxiliary gas tube 322 is adjacent to the electrode part 311 at the rear of the electrode part 311 when the direction from the foreign material accommodation space 32 toward the opening part 31 is forward. It may be located spaced apart from the surface.

6 is an enlarged view illustrating an electrode part 311 according to various embodiments of the present disclosure.

Referring to FIG. 6 , the electrode part 311 may include a charging electrode 3111 , a dust collecting electrode 3112 , and an insulator 3113 electrically separating the charging electrode 3111 and the dust collecting electrode 3112 .

The charging electrode 3111 may charge the foreign material by discharging electric charges. In some embodiments, the charging electrode 3111 may emit ions having either a negative charge or a positive charge, and the dust collecting electrode 3112 may have a polarity indicating the other one of a negative charge or a positive charge. For example, as shown in FIG. 6 , the charging electrode 3111 can generate negative ions, and the dust collecting electrode 3112 has a positively charged polarity, so that foreign substances charged with negative charges by the negative ions are transferred to the dust collecting electrode ( 3112).

In some embodiments, the charging electrode 3111 may emit ions by corona discharge. The material of the charging electrode 3111 is a metal, a conductive composite containing an appropriate amount of a conductive material in a polymer resin, a plating resin coated with a metal component on the surface of the resin, or similar, suitable material in terms of physical properties such as electrical conductivity and work function. can be selected. An appropriate voltage may be applied to the charging electrode 3111 to form a high electric field suitable for corona discharge to occur. The voltage may be determined in consideration of both the effectiveness of corona discharge and power consumption of the electronic device.

In some embodiments, the charging electrode 3111 may have a shape capable of forming a high electric field suitable for corona discharge to occur. In a conductor having a constant potential, the strength of the electric field around the conductor may be inversely proportional to the radius of curvature of the conductor as shown in Equation 1 below.

[Equation 1]

R ₁ and R ₂ are the radius of curvature of the conductor, respectively, and E ₁ and E ₂ are the strength of the electric field around the conductor having the corresponding radius of curvature under the same potential, respectively.

Corona discharge corresponds to a phenomenon in which electrons of gas molecules are separated from atoms to generate ions by a strong electric field around the conductor, and thus the charging electrode 3111 has a small curvature, which can induce a high electric field to effectively cause corona discharge. It is preferred to include a shape having a radius. For example, in some embodiments, the charging electrode 3111 may include fine protrusions having a sharp shape on the surface. In other embodiments, the charging electrode 3111 may include an edge shape in which a cross-sectional area of one end is gradually reduced. Such an electrode shape may include an effect of effectively generating a discharge at a low voltage through which power consumption is relatively low.

In some embodiments, the charging electrode 3111 may include a coating layer applied to the surface in order to reduce the generation of ozone caused by corona discharge. The material of the coating layer may be silver, copper, or a similar material. For example, ozone may be dissociated into silver oxide and oxygen molecules on the silver surface as shown in Equation 2 below.

[Equation 2]

O3 + 2Ag →O2 + Ag2O

Through the above reaction, there is an effect of reducing the health risks caused by ozone generation and user inconvenience caused by ozone smell.

Referring back to FIG. 6 , the dust collecting electrode 3112 may adsorb the foreign material charged by the charging electrode 3111 by electrostatic attraction. It may be preferable to avoid a shape with a small radius of curvature for the dust collecting electrode 3112 in order to prevent a high electric field from being concentrated and thus electric charge being discharged. For example, in some embodiments, the dust collecting electrode 3112 may have a circular shape or a part of a circumference in a cross-sectional shape. In other embodiments, an edge of the dust collecting electrode 3112 may be rounded. In still other embodiments, the dust collecting electrode 3112 may include a surface coating of a non-conductive material. The non-conductive material is preferably a material having a high dielectric constant in order to maintain the electrostatic force on the electrode surface. The coating of the non-conductive material has an effect of preventing the charge of foreign substances in contact with the dust collecting electrode from being discharged through the charging electrode 3111 .

In some embodiments, an auxiliary gas tube 322 may be located in the opening 31 . The auxiliary gas tube 322 is adjacent to the electrode part 311 at the rear of the electrode part 311 when the direction from the foreign material accommodation space 32 toward the opening part 31 is forward. It may be located spaced apart from the surface. The auxiliary gas tube 322 may have a gas outlet 3211b , and the gas outlet 3211b may be directed to discharge gas to the electrode portion 311 . The flow 322a of the gas discharged from the auxiliary gas tube 322 may additionally assist the discharge of the foreign material adsorbed on the electrode.

7B is an enlarged view illustrating the operation of the electrode part 311 and the gas tube 321 of the electronic device 101 according to an embodiment of the present invention.

Figure 7c is an enlarged view for showing the operation of the foreign material receiving space 32 according to an embodiment of the present invention.

The cross-sections of FIGS. 7B and 7C are cross-sectional views taken in the direction A-A' of FIG. 5 .

Referring to FIG. 7A , in some embodiments, the electrode part 311 and the gas tube 321 may alternately operate. The alternating operation means that when the electrode part 311 is operated, the gas tube 321 stops operating (S01), and when the gas tube 321 operates, the electrode part 311 stops working (S02). ) means to

Referring to FIG. 7B , while the electrode part 311 is operating, the foreign material is attached to the electrode part 311 by electrostatic attraction, and thus it may be difficult to be discharged to the outside by the gas tube 321 . In addition, referring to FIG. 7C , when the gas tube 321 operates, a positive pressure for discharging gas from the foreign material receiving space 32 to the opening 31 is generated, so that it is difficult for the foreign material to flow in, the electrode part 311 It may be unnecessary to activate Accordingly, after the electrode part 311 operates to collect foreign substances, the electrode part 311 stops the operation and the gas tube 321 is operated to discharge the collected foreign substances through the opening 31 . By operating the electrode part 311 and the gas tube 321 as described above, the energy required to maintain a positive pressure inside the electronic device 101 and to maintain the electrostatic force of the electrode part 311 is reduced, particularly for portable electronic devices. It has the effect of improving the battery life, which is important in the device.

Referring to FIG. 7C , the foreign material accommodating space 32 according to an exemplary embodiment may include a shape 32a in which the cross-sectional area is gradually reduced along a direction from the inside of the foreign material receiving space 32 toward the opening 31 . . In some embodiments, the above-described shape 32a is formed on the curved surface of the flexible display 161 defining the foreign material receiving space 32 and the recessed portion 3b formed on the inner surface of the body portion 3 facing the curved surface. can be defined by Since the foreign material receiving space 32 has a shape 32a whose cross-sectional area is gradually reduced with respect to the direction of the opening, the gas discharged from the gas tube 321 flows in the direction of the opening 31 and the gas flow 321a The flow rate may be increased. As the flow velocity is increased, the gas flow 321a may have kinetic energy suitable for discharging foreign substances existing in the foreign material accommodating space 32 and foreign materials collected in the electrode part 311 to the outside of the electronic device. In some embodiments, the gas stream 322a exiting the auxiliary gas tube 322 may assist in the release of the foreign body.

Referring again to FIG. 7A , in some embodiments, the electrode portion 311 , the gas tube 321 , and/or the auxiliary gas tube 322 may be controlled to operate intermittently with time intervals. For example, the electrode part 311 stops operating after operation S01 for the first time interval T01, and then the gas tube 321 and/or the auxiliary gas tube 322 operates during the second time interval T02. After the operation (S02), the operation is stopped, and then, the operation of the electrode part 311, the gas tube 321, and the auxiliary gas tube 322 is stopped (S03) for the third time interval T03, and then the electrode again The operation of the unit 311 may be started.

Maintaining the discharge and polarity so that the electrode part 311 can collect foreign substances and maintaining the positive pressure of the gas by the gas tube 321 may be excessively consumed when it is constantly performed. This may deteriorate the user experience of battery-dependent electronic devices. Accordingly, as described above, intermittent operation of the electrode unit 311 , the gas tube 321 , and/or the auxiliary gas tube 322 may include an effect of improving battery life.

In some embodiments, the intermittent operation interval of the electrode part 311 , the gas tube 321 , and/or the auxiliary gas tube 322 may be dynamically shortened or extended. The foreign material detection sensor 176a may collect foreign material concentration information of the external environment in which the electronic device 101 is located, and based on this information, the electrode unit 311 , the gas tube 321 and/or the auxiliary gas tube ( 322), the first to third time intervals may be adjusted. For example, when the concentration of foreign substances in the external environment is low, the third time interval is extended, so that the number of operations of the electrode unit 311 , the gas tube 321 , and the auxiliary gas tube 322 may be reduced. When the electrode part 311 , the gas tube 321 , and/or the auxiliary gas tube 322 are controlled as described above, the electric energy consumed for blocking and discharging foreign substances is optimized, and thus battery life can be improved. In addition, when the concentration of foreign substances in the external environment is high, the third time interval is shortened, so that the number of times of operation of the electrode unit 311 , the gas tube 321 , and the auxiliary gas tube 322 may be increased. When the electrode part 311 , the gas tube 321 , and/or the auxiliary gas tube 322 are controlled as described above, the foreign object blocking and discharge action of the electronic device 101 is actively performed, and the electronic device 101 . It is possible to prevent failure due to foreign matter of

8A is a flowchart illustrating an operation method of the electrode part 311 and the gas tube 321 of the electronic device 101 according to embodiments of the present invention.

8B is a cross-sectional view illustrating an operation in which the flexible display 161 of the electronic device 101 is drawn out according to embodiments of the present disclosure.

8C is a cross-sectional view illustrating an operation in a state in which the drawing of the flexible display 161 of the electronic device 101 is completed according to embodiments of the present invention.

8D is a cross-sectional view illustrating the operation of the electrode part 311 in a state in which the loading/unloading operation of the flexible display of the electronic device 101 is stopped according to embodiments of the present invention.

8E is a cross-sectional view illustrating an operation in which the flexible display 161 of the electronic device 101 is retracted according to embodiments of the present invention.

The cross-sections of FIGS. 8B and 8E are cross-sectional views taken along the A-A' direction of FIG. 2A, and the cross-sections of FIGS. 8C and 8D are cross-sectional views taken along the A-A' direction of FIG. 2B.

Referring to FIG. 8A , the electronic device 101 according to embodiments of the present invention operates a foreign material discharging operation of a gas tube when the flexible display 161 starts drawing out or retracting (C01), and collects foreign materials from the electrode part. Performing the step of stopping the operation (S01), and when the drawing or drawing in operation of the flexible display 161 is completed (C02), starting the foreign material collecting operation of the electrode part and stopping the foreign material discharging operation of the gas tube (S02) can be carried out.

When the electrode unit 311 is operated, foreign matter is collected in the electrode unit 311 , and the amount of foreign matter collected increases so that the foreign material comes into contact with the display surface of the flexible display 161 in a state in which the drawing operation is performed. It may cause damage such as scratches on the surface of the flexible display 161 due to foreign substances. Referring to FIGS. 8B and 8C , when the drawing-out or drawing-in operation of the flexible display 161 is started, the foreign material collecting action of the electrode part 311 is stopped, and the gas tube 321 is operated to collect it by the electrode part 321 . As the foreign material is discharged, an effect of preventing damage such as scratches on the surface of the flexible display 161 due to the foreign material is generated. In addition, referring to FIG. 8E , the flow of the gas discharged from the gas tube 321 when foreign substances existing on the surface of the flexible display 161 in the drawn-out state are introduced into the electronic device following the retracting operation of the flexible display 161 . can be prevented through

Referring to FIG. 8D , in a state in which the drawing-out operation of the flexible display 161 is completed, the gas tube 321 may stop operating and the electrode part 311 may be operated. The electrode part 31 may collect foreign substances from the opening 311 and block the foreign substances from flowing into the electronic device. In this case, since the amount of foreign material flowing into the electronic device 101 is reduced, energy consumed for maintaining the positive gas pressure by the gas tube 321 can be saved.

Referring back to FIGS. 8B, 8C, and 8E , the flexible display 161 of the electronic device according to embodiments of the present invention may include a physical foreign material removing member 1611 . The physical foreign material removing member 1611 may be positioned at an end of the flexible display 161 in a direction in which it enters the electronic device, and may move by following the loading/unloading operation of the flexible display 161 . In some embodiments, the physical foreign material removing member 1611 may be a scraper, a sweeper, a brush, or the like, a technical means for removing a foreign material from a surface by sliding motion.

Referring to FIG. 8B , in the electronic device 101 , a foreign material may exist between the display surface of the flexible display 161 and the inner surface of the main body 3 facing it. Referring to FIG. 8C , when the operation of withdrawing the flexible display 161 is performed, the foreign material is removed by the physical foreign material removing member 1611 following the withdrawing operation and moved to the foreign material receiving space 32 . can be The foreign material moved to the foreign material receiving space 32 may be discharged to the outside of the electronic device by the gas tube 321 . To this end, as shown in FIG. 8c , the foreign material accommodating space 32 and the gas tube 321 are preferably installed in an area where the physical foreign material removing member 1611 is located when the flexible display 161 is pulled out. do.

9 is an enlarged cross-sectional view of a part of the main body 3 and the fixed housing 212 of the electronic device 101 according to embodiments of the present invention.

Referring to FIG. 9 , the electronic device 101 according to embodiments of the present invention may include a physical foreign material blocking member 25 .

When the body part 3 and the display housing part 21 are coupled, a gap may exist due to causes such as assembly tolerance or securing a free space for a sliding operation. The physical foreign material blocking member 25 may seal a gap existing between the main body 3 and the display housing unit 21 to block foreign matter from entering. In some embodiments, the physical foreign material blocking member may include rubber, nitrile butadiene rubber (NBR), fluoroethylene chloride (TFE) rubber, silicone, fluorosilicone, or the like, a soft material for sealing. . In some embodiments, the physical foreign material blocking member 25 may be positioned between the fixed housing 212 and the main body 3 of the display housing 21 , and such a configuration is dependent on the sliding operation of the electronic device 101 . This has the effect of reducing the risk of breaking the seal.

An electronic device according to various embodiments of the present disclosure is an electronic device including a main body and a flexible display panel that is drawn into or drawn out from one end of the main body by a sliding action, wherein the one end on the inner surface of the main body It is located in an area close to the part, is spaced apart from the surface of the flexible display, and is disposed to be spaced apart from the surface of the flexible display on the inner surface of the electrode part and the body part for collecting foreign substances introduced into the body part by electrostatic force, the main body and a gas tube having a gas outlet directed to discharge gas from the inside of the unit in a direction in which the flexible display is withdrawn. In various embodiments of the present invention, the gas emitted from the gas outlet is air, and it is installed in a pipe for supplying the air to the gas tube and the body part and is connected to the pipe to pass the air through the pipe to the gas. It may include a blower for supplying the tube. In various embodiments, an auxiliary gas tube that is spaced apart from the display surface of the flexible display upstream of the electrode part based on the flow direction of the gas and assists in discharging foreign substances by additionally emitting the gas may be included.

In various embodiments of the present disclosure, the electrode unit may include a charging electrode configured to discharge electric charges to charge the foreign material, and a collecting electrode to absorb the foreign material charged by the charging electrode by electrostatic attraction. In various embodiments, the charging electrode may emit ions by corona discharge, and the dust collecting electrode may have a polarity opposite to the charge of the ions.

In various embodiments of the present invention, the body part has a recess formed on the inner surface of the body part facing the flexible display introduced into the body part, and the foreign material receiving space corresponds to the recessed part among the inner surfaces of the body part It may be a space between the region and the flexible display facing the recessed portion. In various embodiments, the shape of the region corresponding to the recessed portion on the inner surface of the body portion is configured such that the cross-sectional area of the foreign material accommodation space becomes gradually smaller with respect to the flow direction of the gas in the foreign material accommodation space, The foreign material receiving space may increase the flow rate of the gas flow.

In various embodiments of the present disclosure, the flexible display may include a physical foreign material removing member that is provided at an end of the flexible display in an incoming direction to follow the withdrawing and withdrawing operation of the flexible display. In various embodiments, the physical foreign material removing member may include at least one of a brush, a sweeper, and a scraper. In various embodiments, the gas tube is installed in a region where the physical foreign material removing member is located when the flexible display is pulled out, and the physical foreign material removing member moves in accordance with the withdrawing operation of the flexible display to move the inside of the electronic device of the foreign material into the foreign material accommodating space, and the gas tube may discharge the gas, thereby discharging the foreign material in the foreign material accommodating space moved by the physical foreign material removing member to the outside of the main body.

In various embodiments of the present disclosure, when the gas tube discharges gas, the electrode unit may stop collecting foreign substances.

In various embodiments of the present invention, when the operation of depositing and withdrawing the flexible display is performed, the electrode unit does not perform foreign material collection, the gas tube performs foreign material discharge operation, and the operation of depositing and withdrawing the flexible display is performed When stopped, the electrode unit may collect foreign substances, and the gas tube may stop gas discharge.

In various embodiments of the present disclosure, the foreign material of the electrode part and the gas tube may intermittently operate with at least one time interval. In various embodiments, a foreign material detection sensor for measuring a foreign material concentration in the surrounding environment may be included, and the time interval may be shortened when the foreign material concentration detected by the foreign material detection sensor is high, and extended when the foreign material concentration is low.

In various embodiments of the present invention, a display housing unit supporting the retracting and withdrawing operation of the flexible display and

and a physical foreign material blocking member positioned between the main body and the display housing and sealing a gap between the main body and the display housing to block the inflow of foreign matter.

And the embodiments disclosed in the present document disclosed in the present specification and drawings are merely presented as specific examples to easily explain the technical content according to the embodiments disclosed in this document and help the understanding of the embodiments disclosed in this document, It is not intended to limit the scope of the embodiment. Accordingly, the scope of the various embodiments disclosed in this document is that, in addition to the embodiments disclosed herein, all changes or modifications derived from the technical ideas of the various embodiments disclosed in this document are included in the scope of the various embodiments disclosed in this document. should be interpreted

Claims

In an electronic device comprising a main body and a flexible display panel that is drawn into or drawn out from one end of the main body by a sliding action,

an electrode part located in a region adjacent to the one end on the inner surface of the body part, spaced apart from the surface of the flexible display, and collecting foreign substances introduced into the body part by electrostatic force; and

and a gas tube disposed to be spaced apart from a surface of the flexible display on the inner surface of the body portion and having a gas outlet directed to discharge gas in a direction in which the flexible display is withdrawn from the inside of the body portion.
The method of claim 1,

The gas discharged from the gas outlet is air,

a pipe for supplying the air to the gas tube; and

and a blower installed in the main body and connected to the pipe to supply the air to the gas tube through the pipe.
The method of claim 1,

and an auxiliary gas tube positioned upstream of the electrode unit and spaced apart from the display surface of the flexible display based on the flow direction of the gas, and assisting in discharging foreign substances by additionally emitting the gas.
The method of claim 1,

The electronic device comprising: a charging electrode for discharging electric charges to charge the foreign material; and a collecting electrode for adsorbing the foreign material charged by the charging electrode by electrostatic attraction.
5. The method of claim 4,

The charging electrode emits ions by corona discharge, and the dust collecting electrode has a polarity opposite to the charge of the ions.
The method of claim 1,

The body part has a recess formed on the inner surface of the body part facing the flexible display drawn into the body part,

The foreign material accommodating space is a space between an area corresponding to the recessed part among the inner surfaces of the main body and the flexible display facing the recessed part.
7. The method of claim 6,

The shape of the region corresponding to the recessed portion on the inner surface of the body portion is configured such that the cross-sectional area of the foreign material accommodation space becomes gradually smaller with respect to the flow direction of the gas in the foreign material accommodation space,

The foreign material accommodating space increases the flow rate of the gas flow.
The method of claim 1,

The flexible display is provided at an end of the flexible display in an incoming direction, the electronic device comprising a physical foreign material removing member that moves in accordance with the withdrawing operation of the flexible display.
9. The method of claim 8,

The physical foreign material removing member includes at least one of a brush, a sweeper, and a scraper.
9. The method of claim 8,

The gas tube is installed in the area where the physical foreign material removal member is located when the withdrawal of the flexible display is completed,

The physical foreign material removing member moves the foreign material inside the electronic device to the foreign material receiving space by moving by following the drawing operation of the flexible display,

The gas tube is an electronic device for discharging the foreign material in the foreign material accommodating space moved by the physical foreign material removing member to the outside of the main body by discharging gas.
The method of claim 1,

When the gas tube discharges gas, the electrode part stops collecting foreign substances.
The method of claim 1,

When the operation of withdrawing and withdrawing the flexible display is performed, the electrode part does not collect foreign substances, and the gas tube performs a foreign substance discharge action,

When the operation of withdrawing and withdrawing the flexible display is stopped, the electrode unit collects foreign substances, and the gas tube stops gas discharge.
The method of claim 1,

The foreign material of the electrode part and the gas tube operate intermittently with at least one time interval.
14. The method of claim 13,

A foreign object detection sensor for measuring the concentration of foreign matter in the surrounding environment,

The time interval is shortened when the foreign material concentration detected by the foreign material detection sensor is high, and is extended when the foreign material concentration is low.
The method of claim 1,

a display housing unit supporting the retracting and withdrawing operations of the flexible display; and

and a physical foreign material blocking member positioned between the main body part and the display housing part and sealing a gap between the main body part and the display housing part to block the inflow of foreign substances.