KR102468443B1 - Display device - Google Patents

Abstract

Embodiments of the present invention relate to a display device, and more particularly, a display panel including a first substrate having a pad part on the rear surface and a second substrate disposed below the first substrate, and a guide panel disposed below the display panel. And, one or more printed circuits connected to the pad part of the first substrate and bent to be located in an outer direction of the guide panel, and a cover shield covering the outer side of the one or more printed circuits, wherein the second substrate is the first substrate is disposed to expose the pad part of the cover shield, the end of the cover shield is spaced apart from the display panel, and at least one of a first structure between the printed circuit and the guide panel and a second structure located on the outer side of the cover shield is further included. It is about a display device that does. According to the embodiments of the present invention, while enabling a borderless design, damage to the configuration of the display fan and the driving circuit can be prevented.

Description

Display device {DISPLAY DEVICE}

The present invention relates to a display device.

As the information society develops, the demand for display devices for displaying images is increasing in various forms. Recently, liquid crystal displays (LCDs), plasma displays (PDPs), Various display devices such as organic light emitting diode display devices (OLEDs) are being utilized.

Among these display devices, a liquid crystal display device displays an image by adjusting light transmittance of liquid crystal using an electric field. To this end, the liquid crystal display device includes a display panel in which liquid crystal cells are arranged in a matrix, a backlight unit supplying light to the display panel, and at least one driving circuit for driving the display panel and the backlight unit. And, the liquid crystal display device is provided with components for casing the display panel, the backlight unit, and the driving circuit.

However, the conventional liquid crystal display device has a problem in that the bezel becomes larger and the display area in which an image is displayed is relatively reduced as components for the casing surround the bezel, which is the upper edge of the display panel.

Therefore, in order to widen the display area or improve aesthetics, research on minimizing the width of the bezel area is being continued.

However, when designing a structure to reduce the bezel area, the display panel or drive circuit components are not sufficiently covered by the case structure, or the display panel or drive circuit components are damaged from external impact. .

Against this background, an object of embodiments of the present invention is to provide a display device having a structure capable of preventing damage to a driving circuit configuration while enabling a borderless design.

Another object of the embodiments of the present invention is to provide a display device having a structure capable of preventing damage to a display panel while enabling a borderless design.

Another object of the embodiments of the present invention is to provide a display device having a structure in which a display panel and a driving circuit can be protected from external forces.

In one aspect, in a display device according to embodiments of the present invention, the display device includes a display panel including a first substrate provided with a pad portion below and a second substrate positioned below the first substrate; A guide panel located below the display panel, one or more printed circuits connected to the pad part of the first substrate and bent to be located outside the guide panel, and covering the outer side of the one or more printed circuits. a cover shield, the second substrate is disposed to expose the pad portion of the first substrate, and the printed circuit includes a bonding portion bonded to the pad portion of the first substrate and extending from the bonding portion; A first structure including an extension portion bent in an outward direction of the display device and positioned outside the guide panel, and located between the extension portion of the printed circuit and the guide panel, and a first structure located on an outer side surface of the cover shield. 2 structures may be included.

In this case, the second structure may overlap at least one first structure. In addition, at least one of the first structure and the second structure may be an elastic body, and the elasticity of the first structure may be less than that of the second structure. In addition, the cover shield may include at least three protrusions protruding in the direction of the display panel, and a portion of at least one printed circuit may be exposed between the at least three protrusions. Alternatively, a finishing material may be attached to the side surface of the first substrate.

In such a display device, the first substrate is a TFT substrate, the second substrate is a color filter substrate, and an upper surface of the first substrate may be a viewing surface.

In addition, the display device further includes a cover bottom positioned below the guide panel, and the extension portion of the printed circuit is bent from an outer direction of the guide panel to an inward direction of the display device and is positioned below the cover bottom, and the extension portion of the printed circuit A driving chip may be mounted on.

According to the embodiments of the present invention described above, it is possible to provide a display device having a structure capable of preventing damage to a driving circuit configuration while enabling a borderless design.

According to embodiments of the present invention, it is possible to provide a display device having a structure capable of preventing damage to a display panel while enabling a borderless design.

According to embodiments of the present invention, a display device having a structure in which a display panel and a driving circuit can be protected from external force can be provided.

1 is a plan view of a display device according to example embodiments.
2 and 3 are cross-sectional views taken along XY of FIG. 1 .
4 is a cross-sectional view illustrating a portion of an area where a first structure is disposed in a display device according to example embodiments.
5 is a cross-sectional view of a display device according to other exemplary embodiments of the present invention.
6 and 7 are perspective views of a portion of a display device according to another exemplary embodiment of the present invention.
FIG. 8 is a cross-sectional view of a display device corresponding to area A of FIG. 7 .
9 is a perspective view of a portion of an outer side of a display device according to embodiments of the present invention.
FIG. 10 is a diagram illustrating a disposition relationship between a protruding portion and a printed circuit in a partial area of a cover shield in a display device according to embodiments of the present invention.
11 is a view showing the arrangement relationship between protrusions and printed circuits in the entire area of the cover shield.
12 is a perspective view of a part of a display device according to another exemplary embodiment of the present invention.
13 is a cross-sectional view taken along line AB of FIG. 12;
14 is a cross-sectional view of a display device according to another exemplary embodiment of the present invention.
15 is a diagram illustrating a display device according to another exemplary embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The embodiments introduced below are provided as examples to sufficiently convey the spirit of the present invention to those skilled in the art. Accordingly, the present invention may be embodied in other shapes without being limited to the embodiments described below. And in the drawings, the size and thickness of the device may be exaggerated for convenience. Like reference numbers indicate like elements throughout the specification.

Advantages and features of the present invention, and methods of achieving them, will become clear with reference to the detailed description of the following embodiments taken in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in a variety of different shapes, only these embodiments make the disclosure of the present invention complete, and common knowledge in the art to which the present invention pertains. It is provided to completely inform the person who has the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numbers designate like elements throughout the specification. The sizes and relative sizes of layers and regions in the drawings may be exaggerated for clarity of explanation.

When an element or layer is referred to as “on” or “on” another element or layer, it includes both cases where another element or layer is intervening as well as directly on another element or layer. do. On the other hand, when an element is referred to as “directly on” or “directly on”, it indicates that no other element or layer is intervening.

The spatially relative terms "below, beneath", "lower", "above", "upper", etc., refer to one element or component as shown in the drawing. It can be used to easily describe the correlation between and other elements or components. Spatially relative terms should be understood as terms that include different orientations of elements in use or operation in addition to the directions shown in the figures. For example, when flipping elements shown in the figures, elements described as “below” or “beneath” other elements may be placed “above” the other elements. Thus, the exemplary term “below” may include directions both below and above.

Also, terms such as first, second, A, B, (a), and (b) may be used in describing the components of the present invention. These terms are only used to distinguish the component from other components, and the nature, sequence, order, or number of the corresponding component is not limited by the term.

1 is a plan view of a display device according to example embodiments.

Referring to FIG. 1 , a display device 100 according to embodiments of the present invention includes a display panel 110, a gate driving circuit 130, a data driving circuit 150, and a source printed circuit board (SPCB). Board, 155) and a control printed circuit board (CPCB: Control Printed Circuit Board, 159).

Although not shown in the drawing, a plurality of data lines and a plurality of gate lines are disposed on the display panel 110 of the display device 100 according to embodiments of the present invention, and the plurality of data lines and the plurality of gate lines A number of subpixels defined by s are arranged.

In addition, the display panel 110 includes at least one gate driving circuit 130 disposed on at least one side. At least one gate driving circuit is a gate driving circuit 130 that drives a plurality of gate lines disposed on the display panel 110 .

The gate driving circuit 130 sequentially drives the plurality of gate lines by sequentially supplying scan signals to the plurality of gate lines. Here, the gate driving circuit 130 is also referred to as a scan driving circuit.

The gate driving circuit 130 may be implemented by including at least one gate driver integrated circuit (GDIC) 131.

Each gate driving circuit integrated circuit 131 is connected to a bonding pad of the display panel 110 by a tape automated bonding (TAB) method or a chip on glass (COG) method, or is connected to a gate in panel (GIP) method. It may be implemented as a type and directly disposed on the display panel 110 , or may be integrated and disposed on the display panel 110 in some cases. In addition, each gate driving circuit integrated circuit (GDIC) may be implemented in a chip on film (COF) method mounted on a film connected to the display panel 110 .

When the gate driving circuit 132 is implemented in a chip on film (COF) method, the gate driving circuit 132 is mounted on the gate-side film 130 connected to the display panel 110 and the gate-side film 130. It may be implemented by including the gate driving circuit integrated circuit 131.

Also, a data driving circuit 152 for driving data lines may exist on one side of the display panel 110 .

For example, the data driving circuit 152 may be implemented in a Chip On Film (COF) method.

As such, when the data driving circuit 152 is implemented in a chip on film (COF) method, the data driving circuit 152 includes the source-side film 150 connected to the display panel 110 and the source-side film 150. It may be implemented by including the source driving circuit integrated circuit 151 mounted thereon.

Below, the source driving circuit integrated circuit 151 is also referred to as a driving chip. Also, the source-side film 150 is also referred to as a printed circuit.

Meanwhile, each source driving circuit integrated circuit 151 may be connected to a bonding pad of the display panel 110 using a tape automated bonding (TAB) method.

Meanwhile, the display device 100 according to embodiments of the present invention includes at least one source printed circuit board 155 and a control circuit for circuit connection between a plurality of source driving circuit integrated circuits 151 and other devices. It may include a control printed circuit board 159 for mounting parts and various electrical devices.

Specifically, the printed circuit 150 on which the source driving circuit integrated circuit 151 is mounted may be connected to at least one source printed circuit board 155 . That is, the printed circuit 150 on which the source driving circuit integrated circuit 151 is mounted has one side electrically connected to the display panel 110 and the other side electrically connected to the source printed circuit board 155.

On the control printed circuit board 159, a panel driving controller 158a for controlling operations of the data driving circuit 152 and the gate driving circuit 132, the display panel 110, the data driving circuit 152, and the gate A power management integrated circuit (PMIC: Power Management IC, 158b) that supplies various voltages or currents to the driving circuit 132 or controls various voltages or currents to be supplied may be mounted.

The at least one source printed circuit board 155 and the control printed circuit board 159 may be circuitically connected through at least one connecting member.

Here, the connecting member may be, for example, a flexible printed circuit (FPC) 156, a flexible flat cable (FFC), or the like.

At least one source printed circuit board 155 and the control printed circuit board 159 may be integrated into one printed circuit board.

In the following description, the display device 100 according to embodiments of the present invention will be mainly described as a liquid crystal display device, but the display device according to embodiments of the present invention is not limited to the liquid crystal display device.

A backlight unit may be disposed below the display panel 110 of the display device according to example embodiments. The structure of the display panel 110 of the display device 100 according to the exemplary embodiments and the backlight unit disposed under the display panel 110 will be described below.

2 and 3 are cross-sectional views taken along line X-Y of FIG. 1 .

Referring to FIGS. 2 and 3 , the display device 100 according to example embodiments includes a backlight unit disposed below the display panel 110 . The backlight unit of the source printed circuit board 150 includes a printed circuit 150 , a guide panel 260 , a cover shield 270 and a first structure 280 .

The display panel 110 includes a first substrate 211 having a pad portion 213 formed on a rear surface thereof, and a first substrate 211 disposed under the first substrate 211 and exposing the pad portion 213 of the first substrate 211 . It may include two substrates 212 .

Here, the first substrate 211 may be a TFT substrate. A plurality of thin film transistors, a plurality of wires, and electrodes may be disposed on the first substrate 211 . The second substrate 212 may be a color filter substrate. A plurality of color filters of different colors and a black matrix partitioning each subpixel may be disposed on the second substrate 212 .

In the display device 100 according to embodiments of the present invention, unlike a conventional liquid crystal display device, the display panel 110 is turned over so that a first substrate 211 having a relatively large area, that is, a thin film transistor array substrate is formed on a second substrate ( 212), that is, to be located on the top of the color filter substrate.

Accordingly, since the pad part 213 provided on the rear surface of the first substrate 211 is disposed facing the bottom of the display panel 110, it is possible to remove a mechanism such as a case top for covering the pad part 213. , a four-sided borderless type display device can be implemented.

Specifically, in a display panel in which the second substrate 212 is disposed on the first substrate 211, the driving circuit such as the printed circuit 150 is connected to the upper surface of the first substrate 211 and extends to the rear surface, Constructions for casing them were needed. However, as the components for the casing cover the outer portion of the display panel, a phenomenon in which the width of a bezel increases has occurred.

However, in the display device 100 of the present invention, since the display panel 110 is turned over, the driving circuit such as the printed circuit 150 is located on the rear surface of the first substrate 211, that is, the pad portion of the first substrate 211. 213, components for covering the drive circuit are not required. Accordingly, the width of the bezel may be increased as much as the casing structure is deleted.

A guide panel 260 is disposed below the display panel 110 . The guide panel 260 may serve to support the display panel 110 .

In addition, one or more printed circuits 150 may be connected to the pad portion 213 of the first substrate 211 and bent to be positioned outside the guide panel 260 . Here, the printed circuit 150 may be any one of a printed circuit board (PCB), a flexible printed circuit board (FPCB), a flexible printed circuit (FPC), and a chip on film (COF). have.

Specifically, the one or more printed circuits 150 include a bonding portion 251 bonded to the pad portion 213 of the first substrate 211 and extending from the bonding portion 251 in an outward direction of the display device 100 . It may include an extension portion 252 that is bent and positioned in an outer direction of the guide panel 260 .

And, the cover shield 270 is positioned to cover the outer side of one or more printed circuits 150 . In addition, the end of the curvy shield 270 is spaced apart from the display panel 110 . And, it includes a first structure 280 located between the extension part 252 of the printed circuit 150 and the guide panel 260 .

As described above, the end 273 of the cover shield 270 is spaced apart from the first substrate 211 of the display panel 110, so that the cover shield 270 extends to the extended portion 252 of the printed circuit 150. Since the cover shield 270 does not come into contact with the bent region of ), interference between the cover shield 270 and the printed circuit 150 can be prevented.

For example, when an external force is applied in an inward direction of the display device 100, the external force may cause the end 271 of the cover shield 270 to move in the same direction as the direction of the external force. Meanwhile, when the cover shield 270 presses the printed circuit 150 by contacting the bent area of the extended portion 252 with the printed circuit 150, the printed circuit 150 is cracked or has a line defect. Damages such as defects may occur.

On the other hand, in the embodiments of the present invention, since the end 273 of the cover shield 270 is disposed apart from the first substrate 211, the cover shield 270 moves in the direction of the printed circuit 150 by an external force. Even if it is, the printed circuit 150 can be prevented from being damaged by the cover shield 270 because it does not come into contact with the bent area of the extended portion 252 of the printed circuit 150 .

And, as shown in FIG. 2 , the first structure 280 may be positioned between the extension 252 of the printed circuit 150 and the guide panel 260 .

Even if an external force is applied to the cover shield 270 in an inward direction of the display device 100 , the distance at which the cover shield 270 is pushed or moved by the external force can be reduced by disposing the first structure 280 . Accordingly, a distance in which the printed circuit 152 is pushed or moved while being pressed against the cover shield 270 can be shortened.

That is, the influence of the movement of the cover shield 270 applied to the printed circuit 150 disposed inside the cover shield 270 due to the first structure 280 can be minimized.

In addition, the display device 100 according to embodiments of the present invention is not limited thereto, and as shown in FIG. 3 , the second structure 390 positioned on the outer side 371 of the cover shield 270 can include

The second structure 390 may absorb an external force applied to the cover shield 390 . That is, even if an external force is applied to the cover shield 270, since the second structure 390 absorbs the external force, the movement of the cover shield 270 may be reduced compared to the applied external force. Accordingly, a distance in which the printed circuit 152 is pushed or moved while being pressed against the cover shield 270 can be shortened.

In addition, when a worker transports the display device 100 using his or her hands or a transport tool, force is applied to the portion where the second structure 390 is located so that the display device 100 can be transported.

Meanwhile, as the end of the cover shield 270 is disposed apart from the display panel 110 , a portion of the extended portion 251 of the printed circuit 150 may be exposed to the outside. In detail, a partial area including a bent area of the extended portion 251 of the printed circuit 130 may be exposed to the outside.

At this time, since the second structure 390 serves as a guide, it is possible to prevent damage caused by contact of the operator's hand or transport mechanism with the printed circuit 150 exposed to the outside when the operator transports the display device 100 . .

As described above, it is sufficient for the display device 100 according to the exemplary embodiments to include at least one of the first structure 280 and the second structure 390 .

Next, a structure in the case where the display device 100 according to embodiments of the present invention includes the first structure will be described in detail.

4 is a cross-sectional view illustrating a portion of an area where a first structure is disposed in a display device according to example embodiments. In the description to be described later, overlapping content with the above-described embodiments may be omitted.

Referring to FIG. 4 , a display device 100 according to example embodiments includes a display panel 110 and a guide panel 260 disposed below the display panel 110 . The guide panel 260 includes a first area 461 facing a portion of the display panel 110 and a second area 462 extending from the first area 461 and bending toward the inside of the display device 100 . can be distinguished.

The guide panel 260 may serve to support the display panel 110 . In this case, the first fixing member 430 may be disposed between the guide panel 260 and the display panel 110 . At this time, the first fixing member 430 may serve to connect the guide panel 260 and the display panel 110 so that they are not separated.

Under the guide panel 260, a light guide plate 400, a plurality of optical sheets 410, a reflector 420, a cover bottom 430, and a light source module 450 are disposed.

Specifically, a plurality of optical sheets 410 are disposed below the guide panel 260 . A second fixing member 431 is disposed between the guide panel 260 and the plurality of optical sheets 410 . The second fixing member 431 may prevent the plurality of optical sheets 410 from moving.

The plurality of optical sheets 410 include a protection sheet 414, an upper prism sheet 413 disposed under the protection sheet 414, a lower prism sheet 412 disposed under the upper prism sheet 413, and a lower prism sheet. (412) may include a diffusion sheet 411 disposed below.

Here, the diffusion sheet 411 prevents spots from occurring on an image displayed on the display panel 110 due to partial concentration of light by dispersing light incident from the light guide plate 420, and It refracts light vertically. The upper prism sheet 413 and the lower prism sheet 412 collect light incident from the diffusion sheet 411 and uniformly distribute it over the entire surface of the display panel 110 . The protective sheet 414 may serve to protect the optical sheets 410 that are sensitive to dust or scratches, and prevent movement of the optical sheets 410 when the backlight unit is transported.

A light guide plate 400 is disposed under the plurality of optical sheets 41 . The light guide plate 400 converts the point light source introduced from the light source module 450 into a surface light source through total internal reflection, diffuse reflection, and diffusion. A reflector 410 is disposed below the light guide plate 400 . The reflector 410 may serve to suppress light loss by reflecting the surface light source emitted from the lower portion of the light guide plate 400 upward again.

A light source module 450 generating light is disposed on at least one side of the light guide plate 400 . The light source module 450 includes a light source 451, a light source printed circuit board 452 having a light source mounted on one surface, and a light source housing 453 disposed on the other surface of the light source printed circuit board 452.

The light source printed circuit board 452 may include a plurality of wires for driving the light source 451 . Also, the light source housing 453 may serve to dissipate heat generated from the light source 451 to the outside.

A cover bottom 430 is disposed below the light source module 450 and the reflector 420 . The cover bottom 430 may be fastened to the guide panel 260 below the guide panel 260 .

The printed circuit 150 is connected to the pad part 213 of the first substrate 211 of the display panel 110 and is bent to be positioned outside the guide panel 260 . The printed circuit 150 includes a bonding portion 251 bonded to the pad portion 213 of the first substrate 211, and a guide panel ( 260) and an extension part 252 located in the outer direction.

In addition, the extended portion 252 of the printed circuit 150 is bent from the outside of the guide panel 260 to the inside of the display device 100 and is located below the cover bottom 430, and the extension of the printed circuit A source driving circuit integrated circuit 151 may be mounted on the unit. In this case, the source driving circuit integrated circuit 151 may be located under the cover bottom 430 .

The cover shield 270 covers the outer side of the printed circuit 150 and may be bent to cover the source driving circuit integrated circuit 151 . Thus, the cover shield 270 can protect the printed circuit 150 and the source driving circuit integrated circuit 151 mounted on the printed circuit 150 . In this case, the end 271 of the cover shield 270 may be spaced apart from the display panel 110 . Through this, since the cover shield 270 does not contact the bent area of the extended portion 252 of the printed circuit 150, the printed circuit 150 can be prevented from being damaged.

Meanwhile, since the cover shield 270 is disposed apart from the display panel 110, a portion of the display panel 110 may be exposed to the outside. Specifically, at least one side of the first substrate 211 of the display panel 110 (eg, one side corresponding to the area where the end 271 of the cover shield 270 is located) is exposed to the outside. may be in a state of

To protect the exposed first substrate 211 substrate, a finishing material 435 may be provided on one side of the first substrate 211 .

The first structure 280 is positioned between the extension 252 of the printed circuit 150 and the guide panel 260 . That is, the distance W1 between the inner side surface 454 of the printed circuit 150 and the first structure 280 is the inner side surface 454 of the printed circuit 150 and the outer side surface 461 of the guide panel 260 It is closer than the distance (W2) between them.

Accordingly, a distance in which the printed circuit 152 is pushed or moved while being pressed by the cover shield 270 in an area corresponding to the area where the first structure 280 is disposed may be shortened.

Meanwhile, although FIG. 4 discloses a configuration in which the first structure 280 and the printed circuit 150 are spaced apart from each other, the display device 100 according to the present exemplary embodiments is not limited thereto. For example, the inner side surface 454 of the printed circuit 150 and the outer side surface of the first structure 280 may be disposed to be in contact with each other.

A portion of the cover shield 270 may overlap the first structure 280 . Specifically, the end 271 of the cover shield 270 may overlap the first structure 280 . Therefore, even if the end 271 of the cover shield 270 moves inward of the display device 100 by an external force, the thickness of the first structure 280 protrudes from the outer side surface 461 of the guide panel 260. The movable distance of the cover shield 270 is shortened as much as possible.

Due to this, the influence applied to the printed circuit 150 can be minimized. Specifically, it is possible to prevent the cover shield 270 from being interfered with the printed circuit 150 by an external force. In addition, it is possible to prevent a phenomenon in which the printed circuit 150 is folded due to movement of the display device 100 or movement of the cover shield 270 .

The distance W3 between the end 271 of the cover shield 270 and the display panel 221 may be longer than the distance W4 between the first structure 280 and the display panel 110 .

Meanwhile, since the end 271 of the cover shield 270 overlaps with the first structure 280, when the end 271 of the cover shield 270 moves in the direction of the display device 100, 1 overlaps with the structure 280 .

Therefore, as described above, the effect applied to the printed circuit 150 according to the movement of the cover shield 270, that is, the phenomenon that the cover shield 270 and the printed circuit 150 interfere with each other and the effect of the printed circuit 150 Folding phenomenon can be minimized.

Meanwhile, in FIG. 4 , the configuration in which the first structure 280 is disposed in an area corresponding to one side where the light source module 450 is disposed has been described, but the present invention is not limited thereto. This is reviewed with reference to FIG. 5 as follows.

5 is a cross-sectional view of a display device according to other exemplary embodiments of the present invention. In the description to be described later, overlapping content with the above-described embodiments may be omitted.

Referring to FIG. 5 , a first structure 280 may be disposed in an area corresponding to one side of the light guide plate 400 and a light source module may be disposed in an area corresponding to the other side of the light guide plate 400 .

In the above structured display device 100, when the printed circuit 150 is not disposed in an area corresponding to the other side of the light guide plate 400, the distance between the light source module and the printed circuit 150 can be increased. . Therefore, it is possible to prevent heat generated from the light source module from being transferred to the printed circuit 150 .

Meanwhile, FIGS. 4 and 5 show a configuration in which the light source module 450 is disposed on one side of the light guide plate 400 in the display device 100 according to the present invention, but the present invention is not limited thereto. For example, the light source module 450 may be disposed on at least both sides of the light guide plate 400 or may be disposed under the light guide plate 400 .

The display device 100 according to the present invention may include a configuration capable of preventing the first structure 280 from being pushed due to heat generated from the light source module 450 . This is reviewed with reference to FIGS. 6 to 8 as follows.

6 and 7 are perspective views of a portion of a display device according to another exemplary embodiment of the present invention. In the description to be described later, overlapping content with the above-described embodiments may be omitted.

Referring to FIG. 6 , a cover bottom 330 is disposed inside the guide panel 260 . At this time, the cover bottom 330 may be fastened to at least one fastening part provided on the guide panel 260 .

Also, a groove 665 may be present on the outer side surface 461 of the guide panel 260 .

In addition, as shown in FIG. 7 , the first structure 280 may be provided in the groove 665 of the guide panel 260 . In this case, the first structure 280 may have a shape protruding outward from the guide panel 260 from an area in which the groove 665 is not provided on the outer side surface 461 of the guide panel 260 .

The first structure 280 may be disposed at each location where a printed circuit is disposed. Through this, it is possible to protect all printed circuits exposed to the outside.

A configuration in which the first structure 280 is positioned in the groove 665 of the guide panel 260 described above is specifically reviewed as follows.

FIG. 8 is a cross-sectional view of a display device corresponding to area A of FIG. 7 . In the description to be described later, overlapping content with the above-described embodiments may be omitted.

Referring to FIG. 8 , a groove 665 may be provided on an outer side surface 461 of the guide panel 260 . Specifically, the groove 665 may be located on a part of the outer side 461 of the guide panel 260 facing the inner side 454 of the printed circuit 150 . That is, the outer side surface 461 of the guide panel 260 may have a step by the groove 665 .

The first structure 280 may be positioned in the groove 665 . The first structure 280 may be provided inside the groove 665 through double-sided tape or adhesive.

Meanwhile, when heat is continuously transferred to the first structure 280, the first structure 280 may be pushed or moved. For example, a phenomenon in which the first structure 280 is pushed due to heat generated from the light source module 450 may occur.

However, in the display device 100 according to the present embodiments, since the first structure 280 is seated in the groove 280 of the guide panel 260, even if the first structure 280 is pushed by heat, the guide panel ( The first structure 280 may not fall due to the step difference between the outer side surface 461 of the 260 and the groove 280 . In other words, even if the first structure 280 is pushed by heat, it may be seated inside the groove 665 without a significant change in position.

In this case, the thickness t1 of the first structure 280 may be longer than the depth t2 of the groove 665 . Here, the thickness t1 of the first structure 280 is the length from the surface of the first structure 280 facing the printed circuit 150 to the surface in contact with the guide panel 260 . Also, the depth t2 of the groove 665 is the depth based on the inward direction of the display device 100 .

Since the thickness t1 of the first structure 280 is longer than the depth t2 of the groove 665, one side of the first structure 280 is longer than the outer side 461 of the guide panel 260. It may protrude outward of (100).

Therefore, the distance D1 between the inner side surface 454 of the printed circuit 150 and the first structure 280 is the distance between the inner side surface 250 of the printed circuit 150 and the outer side surface 461 of the guide panel. could be closer

Here, the end 271 of the cover shield 270 may be disposed to overlap the first structure 280 .

That is, even if the end 271 of the cover shield 270 moves toward the inside of the display device 100 by an external force, the thickness of the first structure 280 protrudes from the outer side surface 461 of the guide panel 260. As much as possible, the movable distance of the cover shield 270 may be shortened.

In other words, since the area in which the cover shield 270 can move is narrowed, the degree of change in the position or shape of a portion of the printed circuit 150 due to the cover shield 270 may be reduced. Therefore, it is possible to prevent the printed circuit 150 from being damaged by an external force.

Subsequently, the structure of the outer side of the display device 100 according to the exemplary embodiments will be reviewed in detail with reference to FIGS. 9 to 11 .

9 is a perspective view of a portion of an outer side of a display device according to embodiments of the present invention. In the description to be described later, overlapping content with the above-described embodiments may be omitted.

Referring to FIG. 9 , the display device 100 according to embodiments of the present invention includes a guide panel 260 disposed below the display panel 110, a plurality of optical sheets 410, a light guide plate 200, a reflector ( 420) and a cover bottom 430.

Also, one or more printed circuits 150 connected to the pad part 213 of the first substrate of the display panel 110 and bent to be positioned outside the guide panel 260 are disposed. The cover shield 270 is disposed to cover a portion of the outer side of the one or more printed circuits 150 . Here, a first structure may be disposed between the guide panel 260 and the extended portion of the printed circuit 150 .

Also, the cover shield 270 includes at least three protrusions 971 protruding in the direction of the display panel 110 . At least three protrusions 971 may serve to support the cover shield 270 so as not to move.

Here, the protrusion 971 may be disposed apart from the display panel 110 . A portion of the guide panel 260 may be exposed in the separation space between the protrusion 971 and the display panel 110 . Specifically, a part of the outer side of the guide panel 260 may be exposed.

In other words, at least three protrusions 971 may be positioned to correspond to areas where the printed circuit 150 is not disposed.

In addition, the distance W5 between the protrusion 971 and the display panel 110 is the distance W3 between the end 271 of the cover shield 270 and the display panel 110 in an area where the protrusion is not provided. ) is shorter than Also, the distance W5 between the protrusion 971 and the display panel 110 may be shorter than the distance between the first structure and the display panel 110 .

That is, when an external force is applied in the inward direction of the display device 100 and the printed circuit 150 is disposed in an area corresponding to the area where the protruding portion 971 is disposed, the protruding portion 971 is aligned with the printed circuit 150. The printed circuit 150 may be damaged by contact.

On the other hand, in the display device 100 according to the present invention, the printed circuit 150 is not provided in an area corresponding to the area where the at least three protrusions 971 are disposed. ) can be prevented from being damaged.

Referring to FIGS. 10 and 11, the above-described arrangement relationship between the protruding portion 971 and the printed circuit 150 is examined in detail as follows.

FIG. 10 is a diagram illustrating a disposition relationship between a protrusion and a printed circuit in a partial area of a cover shield in a display device according to embodiments of the present invention. 11 is a view showing the arrangement relationship between protrusions and printed circuits in the entire area of the cover shield. In the description to be described later, overlapping content with the above-described embodiments may be omitted.

Referring to FIGS. 10 and 11 , a cover shield 270 is disposed to cover the outer side of the printed circuit 150 .

A portion of the end of the cover shield 270 includes at least three protrusions 971 extending toward the display panel 110 . At this time, at least three protrusions 971 are spaced apart from each other.

Here, the separation distance D3 between the printed circuit 150 and another printed circuit 150 adjacent to the printed circuit 150 in the area where the protrusion 971 is located is adjacent to the printed circuit 150 in the area where the protrusion 971 is not located. It may be longer than the separation distance D4 between the other printed circuits 150.

Also, a plurality of printed circuits 150 may be disposed between one protrusion 971 and another protrusion 971 disposed adjacent thereto. For example, three printed circuits 150 may be disposed between one protrusion 971 and another protrusion 971 adjacent thereto.

In other words, the separation distance D4 between the printed circuit 150 and the adjacent printed circuit 150 is very short, making it difficult for the protruding portion 971 to be located. Also, as shown in FIG. 10 , the width D5 of the protrusion 971 may be greater than the separation distance D4 between the printed circuit 150 and another adjacent printed circuit 150 . Therefore, in order to arrange the protrusion 971 between the printed circuits 150, a space wider than the width of the protrusion 971 is required.

However, as the number of protrusions 971 increases, the area where the printed circuit 150 can be disposed may decrease. Meanwhile, in a high-resolution display device, a large number of printed circuits 150 are required, and as the number of protrusions 971 decreases, a space in which the printed circuits 150 can be placed can be secured.

Accordingly, the display device 100 according to example embodiments includes at least three protrusions 971 .

For example, when the cover shield 270 includes three protrusions 971 , as shown in FIG. 11 , the protrusions 971 may be located at both ends and the center of the cover shield 270 . Due to the protrusion 971, the cover shield 270 can be evenly supported at any position.

In addition, although FIG. 11 shows a configuration in which three printed circuits 150 are spaced apart from each other and disposed between the protrusion 971 and the adjacent protrusion 971, the display device according to the exemplary embodiments of the present invention is not limited thereto. A configuration in which three or more printed circuits 150 are disposed between the protrusions 971 is sufficient.

Subsequently, a display device according to another exemplary embodiment of the present invention will be reviewed with reference to FIGS. 12 and 13 .

12 is a perspective view of a part of a display device according to another exemplary embodiment of the present invention. FIG. 13 is a cross-sectional view taken along line A-B of FIG. 12 . In the description to be described later, overlapping content with the above-described embodiments may be omitted.

12 and 13, a display device 100 according to another embodiment of the present invention includes a display panel 110, a printed circuit 150, a guide panel 260, a cover shield 270, and a first 2 includes structure 390.

The cover shield 270 covers the outer side of the one or more printed circuits 150 . And, the second structure 390 is disposed on the outer side surface 371 of the cover shield 270 . The second structure 390 may absorb an external force applied to the cover shield 390 .

As shown in FIG. 13 , the second structure 390 may correspond to the extended portion 252 of the printed circuit and be positioned on the outer side surface 371 of the cover shield 270 . Through this, a partial region of the second structure 390 including the bent region of the extension 252 of the printed circuit 150 may be exposed.

Meanwhile, a worker can transport the display device 100 by hand or by using a transport tool. At this time, force is applied to the portion where the second structure 390 is located so that the display device 100 can be transported.

When the display device 100 is transported through the arrangement of the second structure 390 , a probability that an operator directly contacts the printed circuit 150 may be reduced.

Meanwhile, the display device according to the exemplary embodiments of the present invention is not limited thereto and may be configured as shown in FIG. 14 to be described later.

14 is a cross-sectional view of a display device according to another exemplary embodiment of the present invention. In the description to be described later, overlapping content with the above-described embodiments may be omitted.

Referring to FIG. 14 , a display device according to another embodiment of the present invention includes a display panel 110, a printed circuit 150, a guide panel 260, a cover shield 270, a first structure 280 and A second structure 390 is included.

The display panel 110 includes a first substrate 211 and a second substrate 212, and the second substrate 212 is disposed to expose the pad portion 213 provided on the rear surface of the second substrate 211. .

The printed circuit 150 is connected to the pad part 213 of the first substrate 211 and is bent to be positioned outside the guide panel 260 . The cover shield 9270 covers the outer side of the printed circuit 150 .

Here, the printed circuit 150 includes a bonding portion 251 bonded to the pad portion 213 of the first substrate 211, extending to the bonding portion 251, and bent outwardly of the display device 100 to provide a guide. It includes an extension part 252 located in the outer direction of the panel 260 .

In addition, a first structure 260 located between the extension 252 of the printed circuit 150 and the guide panel 260 and a second structure 390 located on the outer side 371 of the cover shield 270 are included. do.

The size of the second structure 390 may be greater than that of the first structure 280 . Through this, the second structure 390 may be disposed to overlap with at least one first structure 280 . Meanwhile, one first structure 280 may be disposed to overlap one printed circuit 150. When an external force is applied to the display device 100, the second structure 390 first absorbs the external force, The magnitude of the external force applied to the film of the printed circuit 150 overlapping the first structure 280 may be reduced.

For example, as shown in FIG. 12 , the second structure 390 may be disposed to cover the entire outer side surface 371 of the cover shield 270 . In some cases, the second structure 390 may even cover a position corresponding to the protrusion of the cover shield 270 . Meanwhile, at least one of the first structure 280 and the second structure 390 may be an elastic body. That is, the first structure 280 and the second structure 390 may be made of a material capable of sufficiently absorbing an external force.

The elasticity of the first structure 280 may be less than that of the second structure 390 . Specifically, the second structure 390 may have greater elasticity than the first structure 280 because it must directly absorb an external force applied to the display device 100 .

Next, referring to FIG. 15, a display device according to another exemplary embodiment of the present invention will be reviewed. In the description to be described later, overlapping content with the above-described embodiments may be omitted.

15 is a diagram illustrating a display device according to another exemplary embodiment of the present invention. Referring to FIG. 15 , a display device 100 according to another embodiment of the present invention includes a display panel 110, a printed circuit 150, a guide panel 260, and a cover shield 1570. And, it may include at least one of the first structure 280 and the second structure 390 .

Here, the end 1571 of the cover shield 1570 may cover at least one side surface of the display panel 110 . In other words, it may be located at the same position as the one surface 1511 of the first substrate 211 of the display panel 110 . Here, one surface 1511 of the first substrate 211 may be a viewing surface of the display device 100 .

As described above, the end 1571 of the cover shield 1570 covers the side surface of the display panel 110, thereby protecting the side surface of the display panel 110.

According to the embodiments of the present invention described above, a display having a structure capable of preventing damage to a driving circuit configuration (eg, the printed circuit 150, etc.) while enabling a borderless design design. Apparatus 100 may be provided.

According to embodiments of the present invention, it is possible to provide a display device 100 having a structure capable of preventing damage to the display panel 110 while enabling a borderless design.

According to the embodiments of the present invention, the display device 100 having a structure in which the display panel 110 and the driving circuit configuration can be protected from external force can be provided.

The above description and accompanying drawings are merely illustrative of the technical idea of the present invention, and those skilled in the art can combine the configuration within the scope not departing from the essential characteristics of the present invention. , various modifications and variations such as separation, substitution and alteration will be possible. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but to explain, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed according to the claims below, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

100: display device
110: display panel
150: printed circuit
270: cover shield
280: first structure
390: second structure

Claims (17)

In the display device,
a display panel including a first substrate having a pad portion below and a second substrate positioned below the first substrate;
a guide panel positioned below the display panel;
one or more printed circuits connected to the pad part of the first board and bent to be positioned outside the guide panel; and
A cover shield covering the outer side of the one or more printed circuits,
The second substrate is disposed to expose the pad portion of the first substrate,
The printed circuit,
a bonding portion bonded to the pad portion of the first substrate, and an extension portion extending from the bonding portion and bent toward the outside of the display device and positioned outside the guide panel;
Further comprising a first structure located between the extension of the printed circuit and the guide panel, and a second structure located on an outer side of the cover shield,
The second structure overlaps at least one first structure. In the display device,
a display panel including a first substrate having a pad portion below and a second substrate positioned below the first substrate;
a guide panel positioned below the display panel;
one or more printed circuits connected to the pad part of the first board and bent to be positioned outside the guide panel; and
A cover shield covering the outer side of the one or more printed circuits,
The second substrate is disposed to expose the pad portion of the first substrate,
The printed circuit,
a bonding portion bonded to the pad portion of the first substrate, and an extension portion extending from the bonding portion and bent toward the outside of the display device and positioned outside the guide panel;
Further comprising a first structure located between the extension of the printed circuit and the guide panel, and a second structure located on an outer side of the cover shield,
The first structure and the second structure are elastic bodies, and the elasticity of the first structure is less than that of the second structure. In the display device,
a display panel including a first substrate having a pad portion below and a second substrate positioned below the first substrate;
a guide panel positioned below the display panel;
one or more printed circuits connected to the pad part of the first board and bent to be positioned outside the guide panel; and
A cover shield covering the outer side of the one or more printed circuits,
The second substrate is disposed to expose the pad portion of the first substrate,
The printed circuit,
a bonding portion bonded to the pad portion of the first substrate, and an extension portion extending from the bonding portion and bent toward the outside of the display device and positioned outside the guide panel;
Further comprising a first structure located between the extension of the printed circuit and the guide panel, and a second structure located on an outer side of the cover shield,
The cover shield includes at least three protrusions protruding in a direction of the display panel;
A display device in which a portion of at least one printed circuit is exposed between the at least three protrusions. In the display device,
a display panel including a first substrate having a pad portion below and a second substrate positioned below the first substrate;
a guide panel positioned below the display panel;
one or more printed circuits connected to the pad part of the first board and bent to be positioned outside the guide panel; and
A cover shield covering the outer side of the one or more printed circuits,
The second substrate is disposed to expose the pad portion of the first substrate,
The printed circuit,
a bonding portion bonded to the pad portion of the first substrate, and an extension portion extending from the bonding portion and bent toward the outside of the display device and positioned outside the guide panel;
Further comprising a first structure located between the extension of the printed circuit and the guide panel, and a second structure located on an outer side of the cover shield,
A display device having a finishing material attached to a side surface of the first substrate. According to any one of claims 1 to 4,
The second structure,
A display device positioned on an outer side of the cover shield corresponding to the extended portion of the printed circuit. According to any one of claims 1 to 4,
A size of the second structure is greater than a size of the first structure. According to any one of claims 1 to 4,
The display device of claim 1 , wherein a groove exists on an outer side surface of the guide panel, and the first structure is positioned in the groove. According to claim 7 ,
The display device of claim 1 , wherein a thickness of the first structure is greater than a depth of the groove. According to any one of claims 1 to 4,
The distance between the inner side of the printed circuit and the first structure,
A display device closer than the distance between the inner side of the printed circuit and the outer side of the guide panel. According to any one of claims 1 to 4,
A portion of the cover shield overlaps the first structure. According to any one of claims 1 to 4,
A distance between an end of the cover shield and the display panel is longer than a distance between the first structure and the display panel. According to any one of claims 1 to 4,
The printed circuits are arranged spaced apart from each other,
A display device in which the first structure is disposed at each location where the printed circuit is disposed. According to any one of claims 1 to 4,
Further comprising a cover bottom located below the guide panel,
The extension of the printed circuit,
It is bent from the outer direction of the guide panel to the inner direction of the display device and is located below the cover bottom,
A display device in which a driving chip is mounted on an extended portion of the printed circuit. According to claim 13,
The cover shield
A display device that covers an outer side of the printed circuit and is bent to cover the driving chip. According to claim 3,
A display device in which a portion of the guide panel is exposed between the at least three protrusions and the display panel. According to any one of claims 1 to 4,
The first substrate is a TFT substrate, the second substrate is a color filter substrate,
A display device wherein an upper surface of the first substrate is a viewing surface. According to any one of claims 1 to 4,
An end of the cover shield covers a side surface of the display panel.

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