KR20230153209A - Display apparatus and electronic device - Google Patents

Abstract

Provides display devices and electronic devices. The display device includes a display panel, a display case that supports the display panel and includes a board mounting portion, a printed circuit board mounted on the board mounting portion, and a line filter ( Line Filter), the line filter is a core, a shielding member disposed between the core and the board mounting portion and shielding electric or magnetic fields, and a core case in which the core is accommodated, and a coil is wound on at least a portion of the outer side of the core case, It includes a core case including a shielding support portion that supports one side of the board mounting portion of the shielding member.

Description

Display device and electronic device {DISPLAY APPARATUS AND ELECTRONIC DEVICE}

The present disclosure relates to a display device, and more specifically, to a display device including a line filter for reducing current noise.

Electronic devices such as display devices may include a power supply board that supplies power to drive the electronic device, and the power supply board may be a Switched Mode Power Supply (SMPS) board.

Electronic devices can generate electromagnetic waves for a variety of reasons, and electromagnetic waves can affect nearby devices, acting as noise that interferes with the functions of nearby devices, or affecting the human body. International regulations are continuing to prevent this. .

For example, SMPS boards of electronic devices can generate various noises due to electromagnetic interference (EMI) phenomenon that occurs during switching operations.

Accordingly, electronic devices may be equipped with various noise filters, such as a line filter that passes current necessary for operation and removes noise.

One aspect of the present disclosure provides a display device and an electronic device having an improved structure including a line filter to reduce current noise.

One aspect of the present disclosure provides a display device and an electronic device having an improved structure to reduce vibration of a product by shielding an electric or magnetic field generated from a line filter.

One aspect of the present disclosure provides a display device and an electronic device having an improved structure so that the size of the product can be miniaturized by reducing the distance between components.

One aspect of the present disclosure provides a display device and an electronic device having an improved structure to simplify the structure of a line filter and reduce production costs.

A display device according to an example of the present disclosure includes a display panel, a display case that supports the display panel and includes a board mounting portion, a printed circuit board mounted on the board mounting portion, and is mounted on the printed circuit board to reduce current noise. It includes a line filter provided to reduce, wherein the line filter includes a core, a shielding member disposed between the core and the board mounting portion and shielding an electric field or a magnetic field, and a core case in which the core is accommodated. , a coil is wound on at least a portion of the outer side of the core case, and may include a core case including a shielding support portion supporting one side of the board mounting portion of the shielding member.

The shielding member may extend in a direction parallel to the board mounting portion, and the shielding support portion may extend in a direction parallel to the shielding member and the board mounting portion.

The shield support part includes a first support part facing one side of the board mounting part of the shield member, and a second support part supporting an outer edge of the shield member, and the second support part is bent from one end of the first support part. may be extended.

The shielding support part includes a third support part that faces the first support part and supports the other surface of the shielding member opposite to the one side of the board mounting part, and the first support part, the second support part, and the shielding member so that the shielding member is inserted. It may further include a groove formed between the third support parts.

The shielding member may be provided to be insertable into the groove in a direction parallel to the board mounting portion.

The second support unit connects the first support unit and the third support unit.

The first support part and the second support part may extend in a direction perpendicular to each other.

The coil is wound around the core case to extend in a direction parallel to the board mounting portion, and the shielding member may cover one side of the coil facing the board mounting portion.

The shield support includes a plurality of shield supports arranged to be spaced apart from each other, and the plurality of shield supports may be arranged parallel to the direction in which the coil extends.

A portion of one surface of the shielding member on the board mounting portion side may be covered by the shield support portion, and the other portion of one surface of the shielding member on the board mounting portion side may be open.

The core is formed to have an annular shape, the core case is formed to have an annular shape corresponding to the core, and the coil includes a first coil wound around a first area outside the core and the core case, and a second coil wound around the core facing the first area and a second area outside the core case, wherein the line filter is a separator provided to insulate between the first coil and the second coil. ), and the shielding member may be disposed between the separator and the board mounting portion.

The separator may be formed integrally with at least a portion of the board mounting portion side of the core case.

The line filter is fixed to the printed circuit board and further includes a connection pin containing a conductive material, and the coil has a winding portion wound on the outside of the core case and a connection extending from the winding portion and connected to the connection pin. It includes an end, and the shield support part includes a coil through-hole formed between the shielding member and the board mounting part, and the coil has at least a portion between the winding part and the connection end penetrating the coil through-hole. , it is possible to prevent the shielding member from being separated from the shielding support.

The printed circuit board is provided at a location where the line filter is mounted, and includes a substrate hole formed to correspond to the core case, and at least a portion of the shield support portion may be inserted into the substrate hole.

The display case includes a bottom chassis that supports the rear of the display panel, and the board mounting portion may be provided at the rear of the bottom chassis.

A display device according to another example of the present disclosure includes a display panel that displays a screen, a bottom chassis that supports the rear of the display panel, and a power supply board mounted on the bottom chassis, and is mounted on a printed circuit board and the printed circuit board. A power supply board including a line filter provided to reduce current noise, wherein the line filter includes a core disposed in parallel with the bottom chassis, and at least a portion of the core. A coil disposed so as to be disposed between the core and the bottom chassis, a shielding member for shielding an electric or magnetic field, and a core case in which the core is accommodated and the coil is wound, supporting one side of the bottom chassis of the shielding member. It may include a core case including a shielding support.

The shielding member extends in a direction parallel to the bottom chassis, and the shield support part includes a groove extending in a direction parallel to the bottom chassis, and the shielding member is inserted into the groove in a direction parallel to the bottom chassis. It can be prepared as much as possible.

The shielding member may cover one side of the bottom chassis of the coil.

The shielding member may be composed of a magnetic material.

An electronic device according to an example of the present disclosure includes a main body including a board mounting portion, a printed circuit board mounted on the board mounting portion, and a line filter electrically connected to the printed circuit board and provided to reduce current noise, The line filter includes a core assembly, the core assembly including a core, a core base that covers one side of the core and is coupled to the printed circuit board, and a core cover that covers the other side of the core and is coupled to the core base. A shielding member that shields a coil wound on the outside and an electric or magnetic field, and is disposed parallel to the board mounting portion between the core and the board mounting portion, and one surface of the shielding member on the board mounting portion is supported by the core base. Preferably, it may include a shielding member inserted into the core base.

According to the spirit of the present disclosure, the display device and the electronic device include a core case in which the line filter supports the shielding member, thereby shielding the electric or magnetic field generated from the line filter and reducing vibration of the product.

According to the spirit of the present disclosure, display devices and electronic devices can reduce the distance between a line filter and other components, including a shielding member, and miniaturize the size of the product.

According to the spirit of the present disclosure, the display device and the electronic device include a core case in which some components are integrated, thereby simplifying the structure of the line filter and reducing production costs.

Figure 1 is a perspective view showing a display device according to an embodiment of the present disclosure.
FIG. 2 is a diagram showing the rear cover removed from the display device of FIG. 1.
FIG. 3 is a block diagram schematically illustrating the operation of a power supply board in a display device according to an embodiment of the present disclosure.
FIG. 4 is a circuit diagram schematically showing a noise filter for reducing current noise in a display device according to an embodiment of the present disclosure.
FIG. 5 is a diagram illustrating a line filter of a display device according to an embodiment of the present disclosure.
Figure 6 is an exploded perspective view of the line filter of Figure 5.
Figure 7 is a diagram showing the line filter of Figure 5 as seen from the bottom.
Figure 8 is an exploded perspective view showing the line filter of Figure 5 disassembled and viewed from the bottom.
FIG. 9 is a cross-sectional view taken along line X-X' of FIG. 5.
FIG. 10 is a diagram illustrating a line filter of a display device according to another embodiment of the present disclosure, in which the shape of the shielding support portion is modified.
FIG. 11 is a diagram illustrating a line filter of a display device according to another embodiment of the present disclosure, in which the shape of the shielding support portion is modified.
FIG. 12 is a diagram illustrating a line filter of a display device according to another embodiment of the present disclosure, which does not include a separator.
Figure 13 is an exploded perspective view showing the line filter of Figure 12 disassembled.
FIG. 14 is a diagram illustrating a modified example of a line filter mounted on a printed circuit board in a line filter of a display device according to another embodiment of the present disclosure.
FIG. 15 is a diagram showing the line filter of FIG. 14 separated from the printed circuit board.
FIG. 16 is a cross-sectional view taken along line Y-Y' of FIG. 14.
FIG. 17 is a diagram illustrating a line filter of a display device according to another embodiment of the present disclosure, which is configured to prevent the shielding member from being separated by a coil.
Figure 18 is an enlarged view showing A in Figure 17 enlarged.

The embodiments described in this specification and the configurations shown in the drawings are only preferred examples of the disclosed invention, and at the time of filing this application, there may be various modifications that can replace the embodiments and drawings in this specification.

In addition, the same reference numbers or symbols shown in each drawing of this specification indicate parts or components that perform substantially the same function.

Additionally, the terms used herein are used to describe embodiments and are not intended to limit and/or limit the disclosed invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. The existence or addition of numbers, steps, operations, components, parts, or combinations thereof is not excluded in advance.

In addition, terms including ordinal numbers such as “first”, “second”, etc. used in this specification may be used to describe various components, but the components are not limited by the terms, and the terms It is used only for the purpose of distinguishing one component from another. For example, a first component may be named a second component, and similarly, the second component may also be named a first component without departing from the scope of the present invention. The term “and/or” includes any of a plurality of related stated items or a combination of a plurality of related stated items.

Meanwhile, the terms “front”, “rear”, etc. used in the following description are defined based on the drawings, and the shape and location of each component are not limited by these terms.

Hereinafter, in explaining an embodiment of the present disclosure, a display device, which is a type of electronic device, is used as an example for convenience, but the spirit of the present disclosure is not limited thereto. The idea of the present disclosure can be applied to various electronic devices to which a line filter can be applied to reduce current noise.

For example, an electronic device according to the spirit of the present disclosure may include a computer body (not shown) including a central processing unit (CPU) of a personal computer (PC) (not shown).

In addition, although the present disclosure describes a flat display device as an example, the configuration of the present disclosure can also be applied to a curved display device or a bendable or flexible display device in which the flat state and the curved state are variable. Additionally, the configuration of the present disclosure can be applied to all display devices regardless of the screen size of the display device.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the attached drawings.

Figure 1 is a perspective view showing a display device according to an embodiment of the present disclosure. FIG. 2 is a diagram showing the rear cover removed from the display device of FIG. 1.

Referring to FIGS. 1 and 2 , an electronic device according to an embodiment of the present disclosure may be a display device 1.

The display device 1 is a device that processes image signals received from the outside and visually displays the processed images. 1 and 2 illustrate the case where the display device 1 is a television (TV), but the display device 1 is not limited thereto. For example, the display device 1 can be implemented in various forms such as a monitor, a portable multimedia device, and a portable communication device, and the form of the display device 1 is not limited as long as it is a device that visually displays images. .

In addition, the display device 1 may be a large format display (LFD) installed outdoors, such as on the roof of a building or at a bus stop. Here, the outdoors is not necessarily limited to the outdoors, and the display device 1 according to an embodiment of the present disclosure can be installed in any place where a large number of people can come and go even indoors, such as a subway station, shopping mall, movie theater, company, or store. You can.

The display device 1 can receive content including video signals and audio signals from various content sources, and output video and audio corresponding to the video signals and audio signals. For example, the display device 1 may receive content data through a broadcast reception antenna or a wired cable, receive content data from a content playback device, or receive content data from a content provision server of a content provider.

The display device 1 may be configured to display a screen. Specifically, the display device 1 may include a display panel 10 that displays an image on the front.

A plurality of pixels are formed on the display panel 10, and a screen displayed on the display panel 10 may be formed by combining light emitted from a plurality of pixels. For example, one screen can be formed by combining light emitted from a plurality of pixels like a mosaic.

Each of the plurality of pixels may emit light of various brightnesses and colors. Specifically, each of the plurality of pixels may include subpixels, wherein the subpixels include a red subpixel capable of emitting red light, a green subpixel capable of emitting green light, and a blue subpixel capable of emitting blue light. may include. Each of the plurality of pixels may emit light of various brightnesses and colors by combining the light emitted from the red subpixel, green subpixel, and blue subpixel.

The display panel 10 may be a self-emitting display panel such as an organic light-emitting diode (OLED) or a water-emitting display panel such as a liquid crystal display (LCD). There is no particular limitation on the type of display panel 10, and the display device 1 may include various types of display panels 10.

When the display panel 10 is an LCD panel, the display panel 10 includes a thin film transistor substrate in which thin film transistors (TFTs, Thin Film Transistors) are formed in a matrix form, a color filter substrate and a thin film transistor substrate combined in parallel with the thin film transistor substrate. It may include a liquid crystal that is injected between the color filter substrate and whose optical properties vary depending on changes in voltage or temperature. Additionally, a back light unit (BLU) (not shown) may be provided at the rear of the display panel 10.

The backlight unit may be provided to emit light from the rear of the display panel 10 toward the display panel 10 . In this case, the display panel 10 may block or pass the light emitted from the backlight unit.

However, the present invention is not limited thereto, and as described above, the display panel 10 may be a self-luminous display panel such as an OLED panel.

On one side of the display panel 10, there is a cable (not shown) that transmits image data to the display panel 10, and a display driver integrated circuit (DDI) that processes digital image data and outputs an analog image signal. (not shown) may be provided.

The display device 1 may include display cases 20, 30, and 40 that support the display panel 10. The display cases 20, 30, and 40 may support the front, side, and back of the display panel 10.

The display cases 20, 30, and 40 form the exterior of the display device 1, and the display cases 20, 30, and 40 include various parts for the display device 1 to display images or perform various functions. It can be provided. 1 and 2, the case 40 is shown as having a flat plate shape, but the shape of the case 40 is not limited thereto. For example, the case 40 may have a curved plate shape to correspond to the shape of the display panel 10. Alternatively, the case 40 is provided so that its flat state and curved state can be varied and can be applied to the bendable or flexible display device 1.

The display cases 20, 30, and 40 may include a top chassis 20 that supports the front or side surfaces of the display panel 10. The top chassis 20 may support the front of the display panel 10 by forming a bezel that is disposed to face the front of the display device 1. However, if the display device 1 is a bezel-less type display device with a very narrow or no bezel, the top chassis 20 may be provided to support only the side surface of the display panel 10. Furthermore, when the bottom chassis 40 supports the side of the display panel 10, the display device 1 may not include the top chassis 20.

The display device 1 may include a bottom chassis 40 that supports the rear of the display panel 10. The bottom chassis 40 covers the rear of the display panel 10 and can support various components such as a backlight unit (not shown) and a printed circuit board assembly (PCBA) 50. The printed circuit board assembly 50 includes a printed circuit board (PCB) 51 and various electronic components mounted on the printed circuit board 51, and a detailed description thereof will be provided later.

When the display device 1 includes the top chassis 20, the bottom chassis 40 may be coupled to the rear of the top chassis 20.

The display device 1 may include a rear cover 30 that forms the rear of the display device 1. The rear cover 30 is disposed at the rear of the bottom chassis 40 and covers the bottom chassis 40 and various components (e.g., printed circuit board assembly 50, etc.) mounted on the rear of the bottom chassis 40. It can be covered.

As shown in FIG. 2, a printed circuit board 51 may be mounted on the display cases 20, 30, and 40. In other words, the display cases 20, 30, and 40 may include a board mounting portion 41 (see FIG. 5) on which the printed circuit board 51 is mounted. The printed circuit board 51 may be mounted on the board mounting portion 41, and ultimately the printed circuit board assembly 50 may be mounted on the board mounting portion 41.

Specifically, the printed circuit board 51 may be mounted on the bottom chassis 40. In particular, the printed circuit board 51 may be mounted on the rear of the bottom chassis 40. In other words, the board mounting portion 41 may be provided at the rear of the bottom chassis 40, and the printed circuit board assembly 50 including the printed circuit board 51 is connected to the bottom chassis 40 and the rear cover 30. It can be placed between .

However, the present invention is not limited to this, and the board mounting portion 41 may be provided at various positions of the display cases 20, 30, and 40 to enable the printed circuit board 51 to be stably supported.

Specific details about the board mounting portion 41 will be described later.

Meanwhile, as described above, the configuration according to the spirit of the present disclosure is not limited to being applied to the display device 1 and can be applied to various types of electronic devices.

Specifically, the display device 1 according to an embodiment of the present disclosure may be referred to as an electronic device in general terms, and the display cases 20, 30, and 40 of the display device 1 may be referred to as electronic devices in general terms. It can be referred to as the main body. The main body of the electronic device may form the exterior of the electronic device or may be configured to accommodate parts necessary for driving the electronic device. Like the printed circuit boards 50, 60, and 70 of the display device 1, at least one printed circuit board may be mounted on the main body of the electronic device. In other words, the main body of the electronic device may be provided with a board mounting portion for mounting a printed circuit board.

In other words, the description of the configuration of the board mounting portion, printed circuit board, and line filter of the electronic device according to the spirit of the present disclosure includes the board mounting portion 41 and printed circuit boards 50, 60, and 70 of the display device 1. It may be consistent with or similar to the description of the configuration of the line filter 100, etc.

Therefore, for convenience of explanation, hereinafter, in explaining examples according to the spirit of the present disclosure, description will be made based on the display device 1, which is a type of electronic device, and descriptions of other types of electronic devices or electronic devices. General explanations can be omitted.

As described above, the printed circuit board assembly 50 may include a printed circuit board 51 mounted on the board mounting unit 41 and electronic components mounted on the printed circuit board 51.

The printed circuit board 51 can be formed by printing a circuit line pattern with a conductive material such as copper on an electrically insulating board.

The circuit line pattern on the printed circuit board 51 and the electronic components mounted on the printed circuit board 51 may be prepared differently depending on the functions that the printed circuit assembly 50 is intended to provide.

That is, the printed circuit board assembly 50 may be prepared as various types of printed circuit board assemblies 50 depending on the function or configuration to be provided for driving the display device 1.

For example, the printed circuit board assembly 50 may include a main board, a power supply board, a source board, etc.

The main board may include a processor for driving the display device 1 and a power management device. The power supply board can supply power to drive the display device 1. The source board can control the display panel 10 of the display device 1.

A plurality of printed circuit board assemblies 50, such as a main board, a power supply board, and a source board, may be arranged independently or merged with each other. Printed circuit board assemblies 50 arranged independently from each other may be electrically connected to each other to exchange data, signals, or power.

As shown in FIG. 2, a plurality of printed circuit board assemblies 50 may be provided, and each of the plurality of printed circuit board assemblies 50 may be composed of the above-described main board, power supply board, source board, etc. . The plurality of printed circuit board assemblies 50 may be electrically connected to each other to perform a function for driving the display device 1. However, unlike this, the printed circuit board assembly 50 may be configured to perform functions by being integrated with each other.

Hereinafter, the printed circuit board assembly 50 will be described by taking the example of a power supply board.

However, the idea of the present disclosure is not limited to the case where the printed circuit board assembly 50 is composed of a power supply board, and the idea of the present disclosure can be applied to other types of printed circuit board assemblies 50 other than the power supply board.

FIG. 3 is a block diagram schematically illustrating the operation of a power supply board in a display device according to an embodiment of the present disclosure.

Referring to FIG. 3, an operation in which a power supply board supplies power to a display device according to an embodiment of the present disclosure will be described.

Referring to FIG. 3, the power supply board 50 may be configured to receive power from an external power source (not shown) and supply power to the display device 1. The power supply board 50 may include various components mounted on the printed circuit board 51 to supply power for driving the printed circuit board 51 and the display device 1.

The power supply board 50 can be connected to the power terminals (L, N) and can be electrically connected to an external power source through the power terminals (L, N). The external power source may be comprised of AC power, and the power supply board 50 may receive AC power through the power terminals (L, N). The power terminals (L, N) may include a live line and a neutral line.

The display device 1 may include a load 60 that can perform an operation or function by receiving power.

The load 60 is a variety of components provided to drive the display device 1, and can collectively refer to components that perform various functions by consuming power supplied from the power supply board 50.

The power supply board 50 can receive power from an external power source through the power terminals (L, N) and supply operating power and/or standby power to the load 60.

The power supply board 50 may include a switched mode power supply board, or SMPS board (Switched Mode Power Supply Board), which includes a switch element that performs on/off switching operations.

The SMPS board is a modular power supply board that converts electricity supplied from the outside to use in various electronic devices such as computers, TVs, and wireless communication devices. It uses the switching of semiconductor devices and the power conversion function of the transformer to transform commercial power into It performs the role of converting and supplying high-efficiency/high-quality power required by various electronic devices.

The power supply board 50 includes a power converter (not shown) and can convert power input from the outside to be supplied to the load 60. The power converter may be provided between the load 60 and a noise filter (NF, see FIG. 4), which will be described later.

FIG. 4 is a circuit diagram schematically showing a noise filter for reducing current noise in a display device according to an embodiment of the present disclosure.

Referring to FIG. 4, the configuration of a noise filter that reduces current noise in the power supply board 50 of the display device according to an embodiment of the present disclosure will be described.

Referring to FIG. 4, the power supply board 50 may include a noise filter (NF) configured to reduce current noise. The noise filter (NF) may be mounted on the printed circuit board (51).

The noise filter (NF) can be connected to the power terminals (L, N) to receive power. As described above, the power terminals (L, N) connected to the noise filter (NF) may include an active line (L) and a neutral line (N).

The noise filter (NF) may be connected to frame ground (FG). For example, the noise filter (NF) is mounted on the printed circuit board 51, and the printed circuit board 51 is mounted on the display case (20, 30, 40), where the display case (20, 30, 40) Can be provided as a frame ground (FG).

Noise may occur in the printed circuit board assembly 50, such as the power supply board, as current flows. Types of noise caused by current include spatial noise transmitted into the air and conductive noise transmitted through wires such as power lines, signal lines, and ground lines.

Conducted noise is normal mode noise that is transmitted through wires connected to the power terminals (L, N) and travels back and forth between the power terminals (L, N), and the power terminals (Live, Neutral) and the frame ground terminal. There is common mode noise transmitted between (FG).

As shown in Figure 4, the noise filter (NF) includes first and second normal mode choke coils (L1 and L2), line cross capacitors (Cx), and first and second normal mode choke coils (L1 and L2). It may include a common mode choke coil (L3, L4).

The first normal mode choke coil (L1) may be connected to the active line (L), and the second normal mode choke coil (L2) may be connected to the neutral line (N).

A line cross capacitor (Cx) may be connected between the first and second normal mode choke coils (L1 and L2), and first and second common mode choke coils (L3 and L4) may be connected to both ends of the line cross capacitor (Cx). You can.

A plurality of capacitors C1, C2, and Cy may be connected to the first and second common mode choke coils L3 and L4.

The first and second normal mode choke coils L1 and L2 may each be wound on the outside of the core (not shown) to have magnetic flux in one direction. The first and second normal mode choke coils (L1, L2) can effectively reduce normal mode noise by combining with the line cross capacitor (Cx). In this respect, the first and second normal mode choke coils L1 and L2 may form part of a normal mode noise filter that reduces normal mode noise.

The first and second common mode choke coils L3 and L4 may be wound in opposite directions on the outside of the core 200 (see FIG. 6). The first common mode choke coil L3 and the second common mode choke coil L4 may each be wound around the same core 200. Therefore, when common mode noise flows through the first and second common mode choke coils (L3 and L4), the first and second common mode choke coils (L3 and L4) form magnetic fluxes passing in the same direction with respect to the core 200. This is possible, and the first and second common mode choke coils (L3, L4) can effectively reduce common mode noise. In this respect, the first and second common mode choke coils L3 and L4 may form part of the common mode noise filter 100 that reduces common mode noise.

In this way, a noise filter (NF) may be mounted on the printed circuit board 51 to prevent electromagnetic interference (EMI) caused by current noise. Additionally, the noise filter NF may include a common mode noise filter 100 that suppresses common mode noise and a normal mode noise filter that suppresses normal mode noise.

In the above, the configuration and function of the noise filter (NF) included in the display device 1 according to an embodiment of the present disclosure has been described with reference to FIG. 4. However, the embodiment described above is only an example of a noise filter that can be included in a display device according to the spirit of the present disclosure, and the spirit of the present disclosure is not limited thereto.

Hereinafter, for convenience of explanation, the common mode noise filter 100 is referred to as a line filter. Additionally, the first common mode choke coil L3 is referred to as the first coil 310, and the second common mode choke coil L4 is referred to as the second coil 320.

FIG. 5 is a diagram illustrating a line filter of a display device according to an embodiment of the present disclosure. Figure 6 is an exploded perspective view of the line filter of Figure 5. Figure 7 is a diagram showing the line filter of Figure 5 as seen from the bottom. Figure 8 is an exploded perspective view showing the line filter of Figure 5 disassembled and viewed from the bottom. Figure 9 is a cross-sectional view taken along line X-X' of Figure 5.

5 to 9, the display device 1 may include a board mounting portion 41 provided in the display case 20, 30, and 40, and a printed circuit board 51 mounted on the board mounting portion 41. You can. In other words, the display device 1 may include a board mounting portion 41 and a printed circuit board assembly 50 mounted on the board mounting portion 41. For example, the printed circuit board assembly 50 may be a power supply board. It could be (50).

The board mounting portion 41 may be provided on the bottom chassis 40. In other words, the power supply board 50 may be mounted on the bottom chassis 40.

The board mounting portion 41 may be provided at the rear of the bottom chassis 40, and thus the power supply board 50 may be disposed between the bottom chassis 40 and the rear cover 30. Specifically, the printed circuit board 51 may be mounted on the rear of the bottom chassis 40, and the electronic components mounted on the printed circuit board 51 extend from the printed circuit board 51 to the rear of the display device 1. It can be placed in any direction.

For example, as shown in FIG. 5, electronic components such as a line filter 100 may be mounted on the printed circuit board 51. Electronic components such as the line filter 100 may be mounted on a side opposite to the bottom chassis 40 of the printed circuit board 51, that is, on a side facing the rear cover 30 of the printed circuit board 51. Like the line filter 100 shown in FIGS. 5 and 6, a substrate hole 51a is formed in the printed circuit board 51, so that at least a portion of the electronic component is inserted into the substrate hole 51a or the printed circuit board 51 ), the electronic component may be mounted on the printed circuit board 51 from one side facing the rear cover 30 of the printed circuit board 51 to the other side facing the bottom chassis 40.

However, as described above, the printed circuit board 51 may be mounted in various positions of the display cases 20, 30, and 40 even if it is not mounted on the rear of the bottom chassis 40. In other words, the board mounting portion 41 may be provided at various positions on the display case 20, 30, and 40 to enable the printed circuit board 51 to be mounted stably.

It may be desirable to maintain a predetermined distance between the printed circuit board 51 and at least a portion of the board mounting portion 41 for product lifespan, reduction of vibration during operation, and safety. Accordingly, the printed circuit board 51 may be arranged so that one side of the printed circuit board 51 facing the board mounting portion 41 is spaced apart from at least a portion of the board mounting portion 41 . In other words, the printed circuit board 51 may be arranged such that one side of the printed circuit board 51 faces the bottom chassis 40 and is spaced apart from at least a portion of the bottom chassis 40 .

For example, the printed circuit board 51 may be equipped with a supporter (not shown) provided to maintain a separation distance from the board mounting portion 41. The supporter may have a shape that protrudes from the printed circuit board 51 in a direction toward the board mounting portion 41.

Conversely, the board mounting portion 41 may be provided with a structure (not shown) that protrudes toward the printed circuit board 51, and the printed circuit board 51 may be mounted directly on the above structure to form the board mounting portion 41. ) can be installed.

The display device 1 may include a line filter 100 provided to reduce current noise. The line filter 100 may be mounted on a printed circuit board 51.

The line filter 100 may include a core 200, a core case 400 in which the core 200 is accommodated, and a coil 300 wound on at least a portion of the outer side of the core case 400. Current may flow through the coil 300, and magnetic flux generated by the current flowing through the coil 300 may flow along the core 200.

The coil 300 may be configured to allow current to flow when voltage is applied. For example, the coil 300 may be made of a conductive material such as copper (Cu). However, the present invention is not limited thereto, and the coil 300 may be made of various materials.

The coil 300 may be formed in a shape in which a thin and long wire is wound. The coil 300 may be wound along at least a portion of the outer side of the core 200 and the core case 400. Accordingly, the coil 300 may have a space formed inside and have a shape extending in at least one direction.

The coil 300 may be arranged in parallel with at least a portion of the core 200. In other words, the coil 300 may extend in a direction parallel to at least a portion of the core 200.

The coil 300 includes a winding portion 300a wound on the outside of the core case 400, and a connection end 300b (see FIGS. 17 and 18) extending from the winding portion 300a and connected to the connection pin 440. It can be included.

The winding unit 300a may be arranged parallel to at least a portion of the core 200.

The connection pin 440 is a component of the line filter 100 fixed to the printed circuit board 51 and may be made of a conductive material. The coil 300 may be electrically connected to the power terminals (L, N) and the frame ground (FG) by being connected to the connection pin 440 through the connection end (300b). Furthermore, the coil 300 can generate magnetic flux by current supplied from the power terminals (L, N) and generate induced electromotive force based on the amount of change in current.

A detailed description of the connection pin 440 will be described later.

The coil 300 may include a first coil 310 and a second coil 320. The first coil 310 and the second coil 320 may be wound on the outside of the core 200 and the core case 400, respectively. The first coil 310 and the second coil 320 may be arranged to be spaced apart from each other and may be arranged to face each other on the outside of the core case 400.

The outer area of the core 200 and core case 400 where the first coil 310 is wound is the first area, and the outer area of the core 200 and the core case 400 where the second coil 320 is wound is the first area. It may be referred to as the second area.

The first area and the second area are areas provided outside the core case 400, and the first area and the second area may be arranged to be spaced apart from each other in opposing positions.

The first coil 310 may be arranged in parallel with the first area, and the second coil 320 may be arranged in parallel with the second area.

A separator 430 may be provided between the first area and the second area to insulate the first coil 310 and the second coil 320, which will be described later.

The first coil 310 and the second coil 320 may be connected to the power terminals (L, N), respectively. For example, the first coil 310 is connected to the active line (L), and the second coil ( 320) can be connected to the neutral wire (N). However, this is only an example, and the second coil 320 may be connected to the active line (L), and the first coil 310 may be connected to the neutral line (N).

The core 200 may be composed of a material with high permeability. A coil 300 may be wound around the outside of the core 200, and the core 200 may provide a path through which magnetic flux generated by current flowing in the coil 300 passes.

The core 200 may be formed to have an annular shape. More specifically, the core 200 may be formed to have a closed loop shape so that the magnetic flux generated by the current flowing along the coil 300 can circulate along the core 200.

The core 200 may be made of a magnetic material, which is a magnetic material made of an iron compound such as ferrite. Accordingly, the magnetic flux generated by the current flowing along the coil 300 can circulate more easily along the core 200, and the induced electromotive force according to the change in current can be generated more efficiently. Ultimately, the efficiency of the line filter 100 in reducing current noise can be improved. However, it is not limited thereto, and the core 200 may be composed of various materials.

The core case 400 can accommodate the core 200. The core 200 may be placed inside the core case 400.

The core case 400 may include a core cover 410 and a core base 420. The core base 420 covers one side of the core 200 and may be coupled to the printed circuit board 51. The core cover 410 covers the other side of the core 200 and may be coupled to the core base 420.

The core base 420 may cover one side of the core 200 in the direction facing the printed circuit board 51, and the core cover 410 may cover one side of the core 200 in the direction opposite to the printed circuit board 51 of the core 200. Can cover the other side.

The core cover 410 may have a concave inner side facing the core 200 and the core base 420. Alternatively, the core base 420 may be formed to have a concave inner side facing the core 200 and the core base 420. Accordingly, a receiving space in which the core 200 can be accommodated may be formed between the core cover 410 and the core base 420.

However, the configuration of the core cover 410 and core base 420 described above is only an example of the configuration of the core case 400 of the line filter 100 according to an embodiment of the present disclosure, and the core case ( 400) may include various configurations to accommodate the core 200.

The coil 300 may be wound on at least a portion of the outer side of the core case 400. Specifically, the coil 300 may be wound along the core 200 outside the core case 400. As described above, the first coil 310 may be wound in the first region outside the core 200 and the core case 400, and the core 200 and the core case 400 opposite the first region may be wound. A second coil 320 may be wound in the second outer region.

In other words, the coil 300 may not be wound directly on the outside of the core 200, but may be wound on the outside of the core case 400 surrounding the core 200.

The core 200 and the core case 400 in which the core 200 is accommodated may be referred to as a core assembly. The coil 300 may be wound on the outside of the core assemblies 200 and 400. The first coil 310 may be wound in a first area outside the core assemblies 200 and 400, and the second coil 320 may be wound in a second area outside the core assemblies 200 and 400 opposite the first area. It can be wound on.

The core case 400 may be formed to have a shape corresponding to the core 200. For example, as shown in FIGS. 5 to 9 , the core case 400 may be formed to have a substantially annular shape corresponding to the core 200 which has an annular shape. That is, the core assemblies 200 and 400 may have a substantially annular shape.

The core cover 410 and the core base 420 may each be formed to have a substantially circular shape.

The first coil 310 may be wound along a portion of one side of the edge of the annular core 200 and the core case 400. Likewise, the second coil 320 may be wound along one side of the edge of the annular core 200 and the core case 400 and a portion of the other side opposite to the other side.

In other words, the first coil 310 may be wound along a portion of one side of the edge of the annular core assemblies 200 and 400, and the second coil 320 may be wound along a portion of the edge of the annular core assemblies 200 and 400. It may be wound along one side of the edge and a portion of the other side opposite to the edge.

The first coil 310 and the second coil 320 are each connected to the active line (L) or the neutral line (N), and need to be insulated from each other because input current or output current can flow, respectively. Therefore, the first coil 310 and the second coil 320 need to be arranged to have a predetermined distance from each other.

The line filter 100 may further include a separator 430 provided to insulate the first coil 310 and the second coil 320.

The separator 430 may be formed to penetrate the inside of the core assemblies 200 and 400. Specifically, the separator 430 may be formed in the core assemblies 200 and 400 having an annular shape to penetrate the inside of the annular shape. In other words, the separator 430 may be formed to penetrate the inside of the core case 400. In other words, the separator 430 may be provided to penetrate both the inside of the core cover 410 and the core base 420. That is, the separator 430 may be disposed to penetrate between the first outer region and the second outer region of the core assemblies 200 and 400.

Accordingly, the separator 430 may be disposed between the first coil 310 and the second coil 320, and ensures a predetermined separation distance between the first coil 310 and the second coil 320, The first coil 310 and the second coil 320 may be insulated from each other.

As the line filter 100 includes the separator 430, the first coil 310 and the second coil 320 are insulated from each other even if the separation distance between the first coil 310 and the second coil 320 is reduced. It is possible to do so. Accordingly, the size of the line filter 100 can be miniaturized and production costs can be reduced.

The separator 430 may be coupled to at least a portion of the core case 400. For example, as shown in FIGS. 5 to 9 , the separator 430 may be coupled to at least a portion of the core case 400 on the board mounting portion 41 side. That is, the separator 430 may be coupled to the core base 420 and may be formed to extend in a direction from the core base 420 toward the core cover 410.

More specifically, the separator 430 may be formed integrally with at least a portion of the core case 400. For example, as shown in FIGS. 5 to 9 , the separator 430 may be formed integrally with at least a portion of the core case 400 on the board mounting portion 41 side. That is, the separator 430 may be formed integrally with the core base 420.

As the separator 430 is integrally formed as a part of the core case 400, the structure of the line filter 100 including the core case 400 and the separator 430 can be simplified and production costs are reduced. It can be. That is, the productivity of the line filter 100 can be improved.

Furthermore, as will be described later, the fixing portion 422 of the core case 400 may be injection-formed integrally with the core base 420 or the core cover 410, and the separator 430 is also a part of the core case 400. When formed integrally with the core case 400, it may be composed of a very small number of parts, for example, only two parts, the core cover 410 and the core base 420, thereby reducing the productivity of the core case 400. This could be greatly improved.

However, the present invention is not limited thereto, and the separator 430 may be formed in various ways. For example, the separator 430 may be coupled to the core cover 410 or may be formed integrally with the core cover 410, in which case the separator 430 separates the core base 420 from the core cover 410. It can be formed to extend in the direction it faces.

Alternatively, the separator 430 may not be formed integrally with at least a portion of the core case 400, and may be provided as a separate structure from the core case 400.

The core assemblies 200 and 400 may be fixed to the printed circuit board 51. The core case 400 supports the core 200 and the coil 300, and can be coupled to the connection pin 440 and fixed to the printed circuit board 51.

The connection pin 440 may be fixed to the printed circuit board 51. For example, as shown in FIGS. 5 to 9, a connection pin hole 51b may be formed in the printed circuit board 51, and the connection pin 440 may be inserted into the connection pin hole 51b. . The connection pin 440 inserted into the connection pin hole 51b may be fixed to the printed circuit board 51 by soldering. However, it is not limited to this, and the connection pin 440 may be fixed to the printed circuit board 51 in various ways, such as being directly soldered and fixed on one side of the rear cover 30 of the printed circuit board 51.

A plurality of connection pins 440 may be provided, and each of the plurality of connection pins 440 may be connected to an active line (L) or a neutral line (N). For example, the connection pin 440 connected to the first coil 310 may be connected to the active line (L), and the connection pin 440 connected to the second coil 320 may be connected to the neutral line (N). there is. Additionally, the connection pin 440 may be connected to frame ground (FG). The connection pin 440 may be connected to the power terminals (L, N) to the frame ground (FG) through the circuit line pattern of the printed circuit board (51).

The connection pin 440 may be coupled to the core case 400. The core case 400 may include a fixing part 422 that secures the connection pin 440 fixed to the printed circuit board 51 to the core case 400.

A connection pin 440 may be coupled to the fixing portion 422. In order to be fixed to the printed circuit board 51, the connection pin 440 may have at least one end positioned outside the fixing portion 422. For example, the connection pin 440 may penetrate the fixing part 422 and have at least one end extending from the fixing part 422 toward the printed circuit board 51 .

The fixing part 422 may be formed to extend in an outward direction of the core case 400. For example, the fixing part 422 may be formed to extend outward from the edge of the core base 420. The fixing part 422 may extend outward from the core base 420 and parallel to the printed circuit board 51.

However, the present invention is not limited to this, and the fixing part 422 may be configured to have various shapes to couple the connection pin 440 to the core case 400. For example, the fixing part 422 may have a shape extending from the core base 420 toward the printed circuit board 51. In this case, the fixing part 422 is connected to the core base 420 and the printed circuit board. It may be placed between the substrates 51. Alternatively, the fixing part 422 may be formed to extend outward from the edge of the core cover 410.

The fixing part 422 may be injection-molded integrally with the core base 420 or may be integrally injection-molded with the core cover 410 . However, the present invention is not limited to this, and the fixing part 422 may be formed separately from the core cover 410 or the core base 420.

A plurality of fixing parts 422 may be provided to correspond to the number of connection pins 440. However, it is not limited to this, and the number of fixing parts 422 may be provided in various ways.

The printed circuit board 51 may include a board hole 51a provided at a location where the line filter 100 is mounted. The line filter 100 is fixed to the printed circuit board 51 by the connection pin 440, and at least a portion of the line filter 100 is inserted into the board hole 51a and mounted on the printed circuit board 51. You can.

The substrate hole 51a may be formed to correspond to the core case 400. Accordingly, at least a portion of the core case 400 may be inserted into the substrate hole 51a.

At least a portion of the shield support portion 421 of the core case 400, which will be described later, may be inserted into the substrate hole 51a.

The connection pin hole 51b may be formed in an outer direction of the substrate hole 51a. The connection pin 440 may be fixed to the printed circuit board 51 in the outer direction of the board hole 51a. The fixing part 422 may extend outward from the substrate hole 51a.

As at least a portion of the line filter 100 is inserted into the substrate hole 51a, the length at which the line filter 100 protrudes from the printed circuit board 51 can be reduced, ultimately reducing the size of the display device 1. It can be miniaturized.

However, the present invention is not limited thereto, and the line filter 100 may be mounted on the printed circuit board 51 in various ways. For example, as shown in FIGS. 14 to 16, a separate board hole 51a may not be formed in the printed circuit board 51, and the line filter 100 may be formed on one side of the printed circuit board 51. It may be seated on or placed at some distance from one side of the printed circuit board 51.

In order to miniaturize the display device 1, it may be desirable to reduce the distance between the board mounting portion 41 and the printed circuit board 51 or the distance between the board mounting portion 41 and the line filter 100.

However, in this case, an electric or magnetic field is generated as the line filter 100 operates, and the electric or magnetic field may be affected on the board mounting portion 41 disposed adjacent to the line filter 100. For example, as the electric or magnetic field generated when the line filter 100 operates affects the board mounting portion 41, the display such as the board mounting portion 41, the line filter 100, and the printed circuit board 51. Vibration may occur in various components of device 1. If vibration occurs in the components of the display device 1, noise due to vibration may be generated or parts may be damaged, which may shorten the lifespan of the product. This may become a more important problem, especially since the board mounting portion 41, such as the bottom chassis 40, may be made of a metal material.

To solve this problem, the line filter 100 may include a shielding member 500 that shields electric or magnetic fields.

The shielding member 500 is disposed between the core 200 and the board mounting portion 41 to reduce electromagnetic force that may occur between the core 200 and the board mounting portion 41. When the board mounting portion 41 is provided on the bottom chassis 40, the shielding member 500 may be disposed between the core 200 and the bottom chassis 40.

The shielding member 500 may be made of a magnetic material to shield electric or magnetic fields. For example, the shielding member 500 may be composed of a magnetic material made of an iron compound such as ferrite. However, the present invention is not limited thereto, and the shielding member 500 may be made of various materials configured to shield electric or magnetic fields.

The shielding member 500 may extend in a direction parallel to the board mounting portion 41. When the board mounting portion 41 is provided on the bottom chassis 40, the shielding member 500 may extend in a direction parallel to the bottom chassis 40. The shielding member 500 may cover one side facing the board mounting portion 41 of the core assemblies 200 and 400. Additionally, the shielding member 500 may cover one side of the coil 300 facing the board mounting portion 41.

The shielding member 500 may be formed in a substantially flat plate shape extending in a direction parallel to the board mounting portion 41. Accordingly, the size of the display device 1 can be further miniaturized, and the weight and production cost of the line filter 100 can be reduced.

However, the configuration of the shielding member 500 described above is only an example of the shielding member 500 included in the line filter 100 in the display device 1 according to an embodiment of the present disclosure, and is the spirit of the present disclosure. The shielding member is not limited to the above and may be configured in various ways.

The core case 400 may include a shielding support portion 421 that supports the shielding member 500. The shielding support part 421 may be provided so that the shielding member 500 can be disposed between the core 200 and the board mounting part 41 and supported by the core case 400.

The shielding support portion 421 may support one surface of the shielding member 421 on the board mounting portion 41 side. In other words, the shield support 421 may support one side of the shield member 421 opposite to the side facing the core 200. When the board mounting portion 41 is provided on the bottom chassis 40, the shield support portion 421 may support one surface of the shield member 421 on the bottom chassis 40 side.

In the line filter 100, the shielding member 500 is oriented toward the board mounting portion 41 with respect to the core 200, the portion covering the core 200 of the core case 400, and the coil 300. It can be located on the side. Therefore, in order to prevent the shielding member 500 from being separated from the line filter 100 toward the board mounting portion 41, it may be desirable for one surface of the shielding member 500 on the board mounting portion 41 side to be supported. Even if there are components of the line filter 100 such as the core assembly 200 and 400 on the side opposite to the board mounting portion 41 of the shielding member 500, the side facing the board mounting portion 41 of the shielding member 500 is completely This is because the shielding member 500 may be separated from the line filter 100 when open. This is a structure (not shown) where one side of the shielding member 500 opposite to the board mounting portion 41 is attached to the core case 400 or protrudes in a direction opposite to the board mounting portion 41 of the shielding member 500. ) may be the same when combined in a manner such as being inserted into the core case 400. In other words, the shield support part 421 supports one surface of the shield member 421 on the board mounting part 41 side, and thus can be more stably supported by the core case 400.

The shield support portion 421 may be provided to support the shield member 500 while spaced apart from the coil 300.

The shielding support portion 421 may extend in a direction parallel to the shielding member 500 and the board mounting portion 41. In other words, the shield support portion 421 may extend along one side of the shield member 500 facing the board mounting portion 41. Accordingly, the shielding support 421 can support the shielding member 500 more stably.

However, the extent to which the shielding support portion 421 extends in a direction parallel to the shielding member 500 and the board mounting portion 41 may be provided in various ways. For example, the shield support 421 extends to the same extent as the embodiment shown in Figures 5 to 9, extends to the same extent as the embodiment shown in Figure 10 (shield support 1421), or is shown in Figure 11. It can be extended to the same extent as the present embodiment (shielding support 2421). Alternatively, the shield support according to the spirit of the present disclosure may be extended to a degree different from the extent to which the shield supports 421, 1421, and 2421 of the embodiments shown in FIGS. 5 to 11 are extended.

As shown in FIGS. 5 to 9 , the shield support portion 421 may not entirely cover one surface of the shield member 500 on the board mounting portion 41 side. In other words, the shielding support portion 421 supports only a portion of one side of the shielding member 500 on the board mounting portion 41 side, and the other portion of the shielding member 500 on the board mounting portion 41 side supports the board mounting portion 41. It may be formed to be open toward the side. The weight and production cost of the line filter 100 can be reduced.

A plurality of shielding supports 421 may be provided. The plurality of shielding supports 421 may be arranged to be spaced apart from each other. Accordingly, a portion of the shielding member 500 that is not supported by the plurality of shielding supports 421 may be opened toward the board mounting portion 41.

The plurality of shielding supports 421 spaced apart from each other may be arranged parallel to the direction in which the coil 300 extends. Alternatively, the plurality of shielding supports 421 spaced apart from each other may be arranged parallel to the direction in which the core 200 extends.

However, the present invention is not limited to this, and the shielding support 421 may be provided as a single unit.

As the shielding member 500 is disposed between the core 200 and the board mounting portion 41, the shielding support portion 421 may be formed on a portion of the core case 400 on the board mounting portion 41 side. For example, the shield support 421 may be provided on the core base 420, that is, it may be included in the core base 420. In other words, one surface of the shielding member 500 on the board mounting portion 41 side may be supported by the core base 420.

However, unlike this, the shield support portion 421 may be included in the core cover 410 and may be configured to extend from a portion of the core cover 410 toward the core base 420.

The shield support portion 421 may be disposed between the separator 430 and the board mounting portion 41. Accordingly, the shielding member 500 may be disposed between the separator 430 and the board mounting portion 41, and the shielding member 500 may be supported on the shield support portion 421 without being interfered with by the separator 430. You can.

The shield support part 421 may be formed to extend from the fixing part 422. Specifically, the shield support portion 421 may be bent from the fixing portion 422 and extended toward the board mounting portion 41. However, the present invention is not limited to this, and the shielding support portion 421 may be formed to be distinct from the fixing portion 422.

The core 200 may extend in a direction parallel to the board mounting portion 41, and correspondingly, the coil 300 may be wound around the core case 400 to extend in a direction parallel to the board mounting portion 41. When the board mounting portion 41 is provided on the bottom chassis 40, the core 200 and the coil 300 may extend in a direction parallel to the bottom chassis 40.

When the core 200 and the coil 300 extend in a direction parallel to the board mounting portion 41, the core 200 and the coil 300 extend in a direction perpendicular to the direction in which the board mounting portion 41 extends. Compared to the previous case, the length that the line filter 100 protrudes from the printed circuit board 51 can be reduced. Accordingly, the size of the display device 1 can be miniaturized.

In this case, the shielding member 500 may extend in a direction parallel to the core 200 and the coil 300. Additionally, the shield support 421 may extend in a direction parallel to the core 200 and the coil 300.

However, the present invention is not limited thereto, and the core 200 and coil 300 may not extend in a direction parallel to the board mounting portion 41.

The core 200 and the coil 300 may be formed to extend in at least one direction, and the direction in which the core 200 and the coil 300 extend may be different from the direction in which the board mounting portion 41 extends. Even in this case, the shielding member 500 can be disposed between the core 200 and the board mounting portion 41, and furthermore, the shielding member 500 and the shielding support portion 421 are still aligned with the board mounting portion 41. It can also be extended in this direction. The shielding member 500 may extend in a direction different from the direction in which the core 200 and the coil 300 extend, and the shield support 421 may also extend in a direction different from the direction in which the core 200 and the coil 300 extend. can be extended to

When at least a portion of the line filter 100 is mounted on the printed circuit board 51 to be inserted into the substrate hole 51a, at least a portion of the shield support portion 421 may be inserted into the substrate hole 51a.

For example, as shown in FIG. 9, a portion of the shield support 421 may be inserted into the substrate hole 51a. Alternatively, the entire shield support portion 421 may pass through the substrate hole 51a. Accordingly, the line filter 100 can be arranged to be in closer contact with the printed circuit board 51, reduce the length that the line filter 100 protrudes from the printed circuit board 51, and reduce the size of the display device 1. It can be miniaturized.

However, the present invention is not limited to this, and the shield support part 421 may not be inserted into the substrate hole 51a.

Below, the shape of the shield support portion 421 will be described in more detail.

The shielding support part 421 may include a first support part 421a facing one side of the board mounting part 41 of the shielding member 500, and a second support part 421b supporting the outer edge of the shielding member 500. You can. The outer edge of the shielding member 500 supported by the second support part 421b may be bent from one surface of the shielding member 500 supported by the first support part 421a. In other words, the side of the shielding member 500 disposed between one side of the shielding member 500 supported by the first support portion 421a and the other opposite side of the shielding member 500 is supported on the second support portion 421b. can do.

The shielding member 500 has one surface on the board mounting portion 41 side supported by the first support portion 421a, and at the same time, its outer edge is supported by the second support portion 421b, making it more stable by the shielding support portion 421. It can be supported.

The second support portion 421b may be bent and extended from one end of the first support portion 421a. For example, the first support part 421a and the second support part 421b may extend in directions perpendicular to each other. However, it is not limited to this, and the second support part 421b is connected to a part other than one end of the first support part 421a and may extend in a direction different from the direction in which the first support part 421a extends.

The shielding support part 421 faces the first support part 421 and may include a third support part 421c supporting one side of the shielding member 500 opposite to the other side of the board mounting part 41 side. The shielding member 500 is supported on one side of the board mounting portion 41 of the shielding member 500 by the first support portion 421a, and at the same time, the core 200 of the shielding member 500 is supported by the third support portion 421c. As the side surface is supported, it can be supported more stably. In addition, the third support portion 421c is disposed between the shielding member 500 and the winding portion 300a of the coil 300, so that the shielding member 500 and the coil 300 can be spaced apart from each other.

The second support part 421b may connect the first support part 421a and the third support part 421c. In other words, the second support part 421b may be connected to the first support part 421a and the third support part 421c, respectively.

The second support portion 421b may extend from one end of the third support portion 421c and may extend in a direction different from the direction in which the third support portion 421c extends. For example, the second support part 421b and the third support part 421c may extend in directions perpendicular to each other.

However, the present invention is not limited to this, and the first support part 421a, the second support part 421b, and the third support part 421c may be formed in various ways. For example, the second support part 421b may be connected to the first support part 421a, but may not be connected to the third support part 421c.

The shield support part 421 may further include a groove 421d formed between the first support part 421a, the second support part 421b, and the third support part 421c. The shielding member 500 may be supported by being inserted into the groove 421d.

When the shield support 421 is provided on the core base 420, a groove 421d may be formed in the core base 420. In other words, the shielding member 500 may be inserted into the core base 420 so that one surface of the shielding member 500 on the board mounting portion 41 is supported by the core base 420.

The shielding member 500 may be provided to be insertable into the groove 421d in a direction parallel to the board mounting portion 41. For example, the groove 421d may be formed to have at least one end open in a direction parallel to the board mounting portion 41 and may extend in a direction parallel to the board mounting portion 41.

In other words, when the board mounting portion 41 is provided on the bottom chassis 40, the groove 421d may extend in a direction parallel to the bottom chassis 40, and the shielding member 500 is connected to the bottom chassis 40. It may be arranged to be inserted into the groove 421d in a direction parallel to .

5 to 9, the groove 421d is shown as being formed so that the shielding member 500 can be inserted in a direction parallel to the direction in which the coil 300 extends. However, unlike this, the groove 421d may be formed so that the shielding member 500 can be inserted in a direction different from the direction in which the coil 300 extends, for example, in a direction perpendicular to the direction in which the coil 300 extends. .

Accordingly, in the manufacturing stage of the line filter 100, the shielding member 500 can be easily inserted into the groove 421d, and the production efficiency of the line filter 100 can be improved.

However, the present invention is not limited thereto, and the shielding member 500 may be inserted into the groove 421d in various ways.

The shape of the shield support 421 described above is only an example of a shape that the shield support part according to the spirit of the present disclosure can have, and the shield support member according to the spirit of the present disclosure supports one surface of the board mounting portion of the shield member. It can be formed to have various shapes.

With the above configuration, the display device 1 according to the spirit of the present disclosure can reduce noise of current by including a line filter 100, and the line filter 100 includes a shielding member 500 to It may be configured to shield electric or magnetic fields resulting from the operation of the filter 100. Accordingly, vibration and noise caused by electric or magnetic fields generated when the line filter 100 is operated can be reduced, and the distance between the line filter 100 and the board mounting portion 41 can be reduced, thereby reducing the size of the display device 1. can be miniaturized.

In addition, the core case 400, which accommodates the core 200 of the line filter 100 and around which the coil 300 is wound, includes a shield support portion 421 and can stably support the shielding member 500 together, thereby stably supporting the core. The structure of the case 400 can be simplified and production costs can be reduced. In addition, at least a portion of the core case 400 may be formed integrally with the separator 430 that insulates the first coil 310 and the second coil 320, thereby simplifying the structure of the line filter 100 and Productivity can be further improved.

FIG. 10 is a diagram illustrating a line filter of a display device according to another embodiment of the present disclosure, in which the shape of the shielding support portion is modified.

With reference to FIG. 10, a line filter of a display device according to another embodiment of the present disclosure will be described. In describing the embodiment shown in FIG. 10, the same reference numerals may be assigned to the same components as those shown in FIGS. 1 to 9 and the description may be omitted.

Referring to FIG. 10, the core case 400 of the line filter 100 may include a shield support portion 1421 provided to support one surface of the shield member 500 on the board mounting portion 41 side.

The shielding support portion 1421 may be formed to extend along at least one side of one side of the board mounting portion 41 of the shielding member 500. Specifically, for example, as shown in FIG. 10, when one side of the shielding member 500 on the board mounting portion 41 side has a substantially polygonal shape, the shielding support portion 1421 has at least one side of the polygon. It can be extended accordingly.

A plurality of shielding supports 1421 may be provided, and the plurality of shielding supports 1421 may be arranged to be spaced apart from each other. The plurality of shielding supports 1421 may be arranged to face each other. The plurality of shielding supports 1421 may extend in parallel directions.

The shielding support part 1421 may include a first support part 1421a facing one side of the board mounting part 41 of the shielding member 500, and a second support part 1421b supporting the outer edge of the shielding member 500. You can. The outer edge of the shielding member 500 supported by the second support part 1421b may be bent from one surface of the shielding member 500 supported by the first support part 1421a. In other words, the side of the shielding member 500 disposed between one side of the shielding member 500 supported by the first support portion 1421a and the other opposite side of the shielding member 500 is supported on the second support portion 1421b. can do.

The second support portion 1421b may be bent and extended from one end of the first support portion 1421a. For example, the first support part 1421a and the second support part 1421b may extend in directions perpendicular to each other. However, it is not limited to this, and the second support part 1421b is connected to a part other than one end of the first support part 1421a and may extend in a direction different from the direction in which the first support part 1421a extends.

The first support part 1421a may be provided to connect a plurality of second support parts 1421b arranged to face each other. For example, as shown in FIG. 10, the first support parts 1421a are arranged adjacent to each other and can connect the opposing second support parts 1421b. In other words, a plurality of second support parts 1421b facing each other may be connected to both ends of the first support part 1421a.

In Figure 10, the first support portion 1421a is shown as extending in a direction different from the extension direction of the coil 300 or parallel to the direction in which the first coil 310 and the second coil 320 face each other. The shape of the support portion 1421a is not limited to this. The first support portion 1421a may extend in a direction parallel to the direction in which the coil 300 extends.

The shielding support part 1421 faces the first support part 1421 and may include a third support part 1421c supporting one side of the shielding member 500 opposite to the other side of the board mounting portion 41 side.

The second support part 1421b may connect the first support part 1421a and the third support part 1421c. In other words, the second support part 1421b may be connected to the first support part 1421a and the third support part 1421c, respectively.

The second support portion 1421b may extend from one end of the third support portion 1421c and may extend in a direction different from the direction in which the third support portion 1421c extends. For example, the second support part 1421b and the third support part 1421c may extend in directions perpendicular to each other.

However, the present invention is not limited to this, and the first support part 1421a, the second support part 1421b, and the third support part 1421c may be formed in various ways. For example, the second support part 1421b may be connected to the first support part 1421a, but may not be connected to the third support part 1421c.

The shield support part 1421 may further include a groove 1421d formed between the first support part 1421a, the second support part 1421b, and the third support part 1421c. The shielding member 500 may be supported by being inserted into the groove 1421d.

The shielding member 500 may be provided to be insertable into the groove 1421d in a direction parallel to the board mounting portion 41. For example, the groove 1421d may be formed to have at least one end open in a direction parallel to the board mounting portion 41 and may extend in a direction parallel to the board mounting portion 41.

Referring to FIG. 10, the groove 1421d is shown as being formed so that the shielding member 500 can be inserted in a direction parallel to the direction in which the coil 300 extends. However, unlike this, the groove 1421d may be formed so that the shielding member 500 can be inserted in a direction different from the direction in which the coil 300 extends, for example, in a direction perpendicular to the direction in which the coil 300 extends. .

FIG. 11 is a diagram illustrating a line filter of a display device according to another embodiment of the present disclosure, in which the shape of the shielding support portion is modified.

With reference to FIG. 11, a line filter of a display device according to another embodiment of the present disclosure will be described. In describing the embodiment shown in FIG. 11, the same reference numerals may be assigned to the same components as those shown in FIGS. 1 to 9 and the description may be omitted.

Referring to FIG. 11, the core case 400 of the line filter 100 may include a shield support portion 2421 provided to support one surface of the shield member 500 on the board mounting portion 41 side.

The shielding support portion 2421 may be formed to cover the entire surface of the shielding member 500 on the board mounting portion 41 side. For example, as shown in FIG. 11, the shield support 2421 may have a shape corresponding to the shield member 500 and may be formed to include a substantially flat plate shape.

The shielding support part 2421 may include a first support part 2421a facing one side of the board mounting part 41 of the shielding member 500, and a second support part 2421b supporting the outer edge of the shielding member 500. You can. The outer edge of the shielding member 500 supported by the second support part 2421b may be bent from one surface of the shielding member 500 supported by the first support part 2421a. In other words, the side of the shielding member 500 disposed between one side of the shielding member 500 supported by the first support portion 2421a and the other opposite side of the shielding member 500 is supported on the second support portion 2421b. can do.

The second support portion 2421b may be bent and extended from one end of the first support portion 2421a. For example, the first support part 2421a and the second support part 2421b may extend in directions perpendicular to each other. However, it is not limited to this, and the second support part 2421b is connected to a part other than one end of the first support part 2421a and may extend in a direction different from the direction in which the first support part 2421a extends.

The first support part 2421a may be provided to connect a plurality of second support parts 2421b. For example, as shown in FIG. 11, the first support part 2421a may connect all of the plurality of second support parts 2421b.

The shielding support part 2421 faces the first support part 2421 and may include a third support part 2421c supporting one side of the shielding member 500 opposite to the other side of the board mounting portion 41 side.

The second support part 2421b may connect the first support part 2421a and the third support part 2421c. In other words, the second support part 2421b may be connected to the first support part 2421a and the third support part 2421c, respectively.

The second support portion 2421b may extend from one end of the third support portion 2421c and may extend in a direction different from the direction in which the third support portion 2421c extends. For example, the second support part 2421b and the third support part 2421c may extend in directions perpendicular to each other.

However, the present invention is not limited to this, and the first support part 2421a, second support part 2421b, and third support part 2421c may be formed in various ways. For example, the second support part 2421b may be connected to the first support part 2421a, but may not be connected to the third support part 2421c.

The shield support part 2421 may further include a groove 2421d formed between the first support part 2421a, the second support part 2421b, and the third support part 2421c. The shielding member 500 may be supported by being inserted into the groove 2421d.

The shielding member 500 may be provided to be insertable into the groove 2421d in a direction parallel to the board mounting portion 41. For example, the groove 2421d may be formed to have at least one end open in a direction parallel to the board mounting portion 41 and may extend in a direction parallel to the board mounting portion 41.

Referring to FIG. 11, the groove 2421d is shown as being formed so that the shielding member 500 can be inserted in a direction parallel to the direction in which the coil 300 extends. However, unlike this, the groove 2421d may be formed so that the shielding member 500 can be inserted in a direction different from the direction in which the coil 300 extends, for example, in a direction perpendicular to the direction in which the coil 300 extends. .

FIG. 12 is a diagram illustrating a line filter of a display device according to another embodiment of the present disclosure, which does not include a separator. Figure 13 is an exploded perspective view showing the line filter of Figure 12 disassembled.

With reference to FIGS. 12 and 13 , a line filter of a display device according to another embodiment of the present disclosure will be described. In describing the embodiment shown in FIGS. 12 and 13, the same components as those shown in FIGS. 1 to 9 may be assigned the same reference numerals and descriptions may be omitted.

Referring to FIGS. 12 and 13 , the line filter 100 may not be provided with the separator 430 shown in FIGS. 1 to 9 .

A coil 300 may be wound on at least a portion of the outside of the core assemblies 200 and 400 of the line filter 100, and the coil 300 includes a first coil 310 and a second coil 320 that are wound spaced apart from each other. may include. In other words, the first coil 310 is wound in the first area outside the core assembly (200, 400), and the second coil (310) is wound in the second area outside the core assembly (200, 400) opposite the first area. 320) can be wound.

At this time, the first coil 310 and the second coil 320 may be arranged while maintaining a sufficient distance from each other. Accordingly, a separator for insulating the first coil 310 and the second coil 320 may not be provided between the first coil 310 and the second coil 320.

FIG. 14 is a diagram illustrating a modified example of a line filter mounted on a printed circuit board in a line filter of a display device according to another embodiment of the present disclosure. FIG. 15 is a diagram showing the line filter of FIG. 14 separated from the printed circuit board. FIG. 16 is a cross-sectional view taken along line Y-Y' of FIG. 14.

14 to 16, a line filter of a display device according to another embodiment of the present disclosure will be described. In describing the embodiment shown in FIGS. 14 to 16, the same components as those shown in FIGS. 1 to 9 may be assigned the same reference numerals and descriptions may be omitted.

14 to 16, the line filter 100 may be mounted on one side of the printed circuit board 51.

Specifically, at least part of the line filter 100 other than the connection pin 440 may not be inserted into the printed circuit board 51 . In other words, the entire core case 400 of the line filter 100 may be disposed on one side of the printed circuit board 51 . That is, the line filter 100 may be provided so that the entire core case 400 is disposed on one side opposite to the board mounting portion 41 of the printed circuit board 51.

More specifically, the printed circuit board 51 may not have the substrate hole 51a shown in FIGS. 5 to 9.

Accordingly, the shielding member 500 may be disposed between the printed circuit board 51 and the core 200, and the shielding support portion 421 may be disposed between the printed circuit board 51 and the core 200. You can.

As shown in FIG. 16, the core base 420 may be in contact with one surface of the printed circuit board 51 on the side opposite to the board mounting portion 41. More specifically, the shield support portion 421 may be in contact with one surface of the printed circuit board 51 on the side opposite to the board mounting portion 41.

However, the present invention is not limited to this, and the shielding support portion 421 may be arranged to be spaced apart from the printed circuit board 51, and further, the entire core case 400 may be arranged to be spaced apart from the printed circuit board 51. Accordingly, the line filter 100 may be supported on the printed circuit board 51 only by the connection pin 440.

FIG. 17 is a diagram illustrating a line filter of a display device according to another embodiment of the present disclosure, which is configured to prevent the shielding member from being separated by a coil. Figure 18 is an enlarged view showing A in Figure 17 enlarged.

With reference to FIGS. 17 and 18 , a line filter of a display device according to another embodiment of the present disclosure will be described. In describing the embodiments shown in FIGS. 17 and 18, the same components as those shown in FIGS. 1 to 9 may be assigned the same reference numerals and descriptions may be omitted.

17 and 18, as described above, the line filter 100 includes a core 200, a core case 400 accommodating the core 200, and a coil 300 wound on the outside of the core case 400. ) may include,

The coil 300 may include a winding portion 300a wound on the outside of the core case 400 and a connection end 300b extending from the winding portion 300a and connected to the connection pin 440. The coil 300 is connected to the connection pin 440 through the connection end 300b, and may be connected to the power terminals L and N to allow current to flow. When current flows through the coil 300, the winding unit 300a can generate a magnetic field due to the current and generate induced electromotive force.

The line filter 100 may include a shielding member 500 configured to shield the electric or magnetic field generated when the line filter 100 operates, and the core case 400 may support the shielding member 500. there is. The shielding member 500 may be disposed between the core 200 and the board mounting portion 41, and the core case 400 includes a shielding support portion 421 and is located on the board mounting portion 41 side of the shielding member 500. One side can be supported.

The shielding support part 421 may include a first support part 421a, a second support part 421b, and a third support part 421c, and the first support part 421a, the second support part 421b, and the third support part ( It is formed between 421c) and may further include a groove 421d into which the shielding member 500 is inserted.

At least one end of the groove 421d in the direction in which the shielding member 500 is inserted may be open so that the shielding member 500 can be easily inserted. For example, at least one end of the groove 421d in a direction parallel to the direction in which the board mounting portion 41 extends may be open.

At this time, even after the shielding member 500 is inserted into the groove 421d, it may flow inside the groove 421d due to various causes such as severe vibration of the product or gravity applied to the shielding member 500. Furthermore, the shielding member 500 may be separated from the shielding support 421 due to increased flow inside the groove 421d.

To solve this problem, the shield support portion 421 may further include coil through-holes 421e and 421f.

The coil 300 penetrates the coil through-holes 421e and 421f, thereby preventing the shielding member 500 from being separated from the shielding support portion 421. Specifically, at least a portion of the coil 300 located between the winding portion 300a and the connection end 300b penetrates the coil through-holes 421e and 421f and the shielding member 500 separates from the shielding support portion 421. You can prevent it from happening.

In the coil 300, a portion of the coil 300 extending from the winding portion 300a covers one side of the shielding member 500 on the outside of the shielding support portion 421 and penetrates the coil through-holes 421e and 421f. It may be provided to extend toward the connection pin 440.

Specifically, at least a portion of the coil 300 located between the winding portion 300a and the connection end 300b is one side of the shield support portion 421 that is open to allow the shield member 500 to be inserted into the shield support portion 421. It partially covers and can penetrate the coil through-holes 421e and 421f. Accordingly, the shielding member 500 can be prevented from being separated from the shield support portion 421 by a portion of the coil 300.

Here, the one side of the shielding support 421 that is open to allow the shielding member 500 to be inserted into the shielding support 421 means at least one side of the groove 421d that is open in the direction in which the shielding member 500 is inserted into the groove 421d. It can be temporary.

The coil through-holes 421e and 421f are a first coil through-hole 421e through which a portion of the coil 300 on the side adjacent to the winding portion 300a penetrates, and a coil 300 on the side adjacent to the connection end 300b. may include a second coil through-hole 421f through which a portion of the . That is, the coil 300 extends from the winding portion 300a, sequentially passes through the first coil through-hole 421e and the second coil through-hole 421f, and extends to the connection end 300b, and connects the connection pin 440. ) can be connected to.

The first coil through-hole 421e and the second coil through-hole 421f may each be formed to penetrate the shield support portion 421.

For example, as shown in FIGS. 17 and 18, the first coil through hole 421e may be formed to penetrate the first support portion 421a. Additionally, the second coil through-hole 421f may penetrate the second support portion 421b.

A portion of the coil 300 disposed between the first coil through-hole 421e and the second coil through-hole 421f may be located inside the groove 421d. Therefore, so that the shielding member 500 inserted into the groove 421d and the part of the coil 300 located inside the groove 421d do not interfere with each other, the shield support portion 421 is positioned closer to the end of the shielding member 500. It may extend longer in the outward direction. In other words, the outer end of the shield support 421 may protrude outward than the end of the shield member 500, and the end of the shield member 500 is arranged to be recessed more than the outer end of the shield support 421. It can be.

That is, the shielding member 500 is recessed in the direction in which the shielding member 500 is inserted into the groove 421d, forming a space inside the groove 421d through which a portion of the coil 300 can penetrate. You can.

However, the present invention is not limited to this, and the coil through-holes 421e and 421f may be formed at various positions of the shield support portion 421.

For example, the coil through-holes 421e and 421f may both be formed to penetrate the first support portion 421a, or may be formed to penetrate the first support portion 421a and the third support portion 421c, respectively. Furthermore, the coil through-holes 421e and 421f may be provided so that at least a portion of the coil 300 does not pass through the inside of the groove 421d.

Coil through-holes 421e and 421f may be provided in each of the plurality of shielding supports 421. Alternatively, the coil through-holes 421e and 421f may be provided in only one part of the plurality of shielding supports 421.

Furthermore, the core case 400 is provided with a protruding structure (not shown) on the outside of the core case 400 (especially the core base 420) to more firmly fix the coil 300 and form a shielding member ( 500) may be provided to more stably prevent separation from the shield support 421.

With this configuration, the shielding member 500 can be prevented from being separated from the shield support portion 421. However, the characteristics of the positions of the coil through-holes 421e and 421f described above are only examples according to the spirit of the present disclosure, and the spirit of the present disclosure is not limited to the above. Unlike shown in FIGS. 17 and 18, at least a portion of the coil 300 located between the winding portion 300a and the connection end 300b covers one side of the shielding member 500 in various ways, thereby forming the shielding member 500. (500) can be prevented from being separated from the shield support portion 421.

In the above, specific embodiments are shown and described. However, it is not limited to the above-described embodiments, and those skilled in the art can make various changes without departing from the gist of the technical idea of the invention as set forth in the claims below. .

One; Display devices, electronic devices
10; display panel
20; top chassis
30; rear cover
40; bottom chassis
41; Board mounting part
50; Power supply board, printed circuit board assembly
51; printed circuit board
51a; board hole
51b; Connection pin hole
100; line filter
200; core
300; coil
310; first coil
320; second coil
400; core case
410; core cover
420; core base
421; shield support
422; fixed part
430; separator
440; connection pin
500; Shielding member

Claims (20)

display panel;
a display case supporting the display panel and including a board mounting portion;
A printed circuit board mounted on the board mounting unit; and
A line filter mounted on the printed circuit board and provided to reduce current noise,
The line filter is,
core;
a shielding member disposed between the core and the board mounting portion and shielding an electric or magnetic field; and
A display device comprising a core case in which the core is accommodated, a core case having a coil wound around at least a portion of an outer side of the core case, and a shield support part supporting one surface of the shield member on a side of the board mounting portion. According to paragraph 1,
The shielding member extends in a direction parallel to the board mounting portion,
A display device wherein the shielding support portion extends in a direction parallel to the shielding member and the board mounting portion. According to paragraph 1,
The shielding support part includes a first support part facing one side of the board mounting part of the shielding member, and a second support part supporting an outer edge of the shielding member,
A display device wherein the second support part is bent and extended from one end of the first support part. According to paragraph 3,
The shield support part,
A third support portion opposite the first support portion and supporting the other side of the shielding member opposite to the one side of the board mounting portion,
The display device further includes a groove formed between the first support part, the second support part, and the third support part to insert the shielding member. According to paragraph 4,
The display device is provided so that the shielding member can be inserted into the groove in a direction parallel to the board mounting portion. According to paragraph 4,
The second support unit connects the first support unit and the third support unit. According to paragraph 3,
A display device wherein the first support part and the second support part extend in a direction perpendicular to each other. According to paragraph 1,
The coil is wound around the core case to extend in a direction parallel to the board mounting portion,
The shielding member covers one side of the coil facing the board mounting portion. According to clause 8,
The shield support includes a plurality of shield supports arranged to be spaced apart from each other,
A display device wherein the plurality of shielding supports are arranged parallel to a direction in which the coil extends. According to paragraph 1,
A portion of one surface of the shielding member on the board mounting portion side is covered by the shielding support portion,
A display device wherein the other part of one side of the shielding member on the board mounting portion side is open. According to paragraph 1,
The core is formed to have an annular shape,
The core case is formed to have an annular shape corresponding to the core,
The coil includes a first coil wound around a first area outside the core and the core case, and a second coil wound around a second area outside the core and the core case opposite the first area,
The line filter further includes a separator provided to insulate between the first coil and the second coil,
The shielding member is a display device disposed between the separator and the board mounting portion. According to clause 11,
The separator is a display device formed integrally with at least a portion of the board mounting portion side of the core case. According to paragraph 1,
The line filter is fixed to the printed circuit board and further includes a connection pin containing a conductive material,
The coil includes a winding portion wound on the outside of the core case and a connection end extending from the winding portion and connected to the connection pin,
The shield support portion includes a coil through hole formed between the shield member and the board mounting portion,
A display device in which at least a portion of the coil between the winding portion and the connection end penetrates the coil through-hole to prevent the shielding member from being separated from the shielding support portion. According to paragraph 1,
The printed circuit board is provided at a position where the line filter is mounted and includes a board hole formed to correspond to the core case,
A display device wherein at least a portion of the shielding support portion is inserted into the substrate hole. According to paragraph 1,
The display case includes a bottom chassis supporting the rear of the display panel,
The board mounting unit is a display device provided at the rear of the bottom chassis. A display panel that displays a screen;
a bottom chassis supporting the rear of the display panel; and
A power supply board mounted on the bottom chassis, including a printed circuit board and a line filter mounted on the printed circuit board to reduce noise of current. ,
The line filter is,
a core disposed in parallel with the bottom chassis;
a coil disposed in parallel with at least a portion of the core;
a shielding member disposed between the core and the bottom chassis and shielding an electric or magnetic field; and
A display device comprising: a core case in which the core is accommodated and the coil is wound, and a core case including a shielding support portion supporting one surface of the bottom chassis side of the shielding member. According to clause 16,
The shielding member extends in a direction parallel to the bottom chassis,
The shield support portion includes a groove extending in a direction parallel to the bottom chassis,
The shielding member is provided to be inserted into the groove in a direction parallel to the bottom chassis. According to clause 16,
The shielding member covers one surface of the bottom chassis side of the coil. According to clause 16,
A display device in which the shielding member includes a magnetic material. A main body including a board mounting portion;
A printed circuit board mounted on the board mounting unit; and
A line filter electrically connected to the printed circuit board and provided to reduce current noise,
The line filter is,
A core assembly including a core, a core base that covers one side of the core and is coupled to the printed circuit board, and a core cover that covers the other side of the core and is coupled to the core base;
a coil wound on the outside of the core assembly; and
A shielding member that shields an electric field or a magnetic field, disposed parallel to the board mounting portion between the core and the board mounting portion, and inserted into the core base so that one side of the shielding member on the board mounting portion is supported by the core base. An electronic device including a shielding member.

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