KR20170015727A - Display Device - Google Patents

Abstract

The present invention relates to a display device. Provided is the display device capable of minimizing a bezel size by removing a guide panel which is a plastic structure of a complex structure arranged inside an existing cover bottom and providing a panel support frame which is a bent frame with a simple shape arranged outside a cover bottom.

Description

[0001]

The present invention relates to a display device, and more particularly to a display device having a supporting structure capable of implementing a narrow bezel.

2. Description of the Related Art [0002] As an information-oriented society develops, there have been various demands for display devices for displaying images. Recently, liquid crystal displays (LCDs), plasma display panels (PDPs) Various display devices such as an OLED (Organic Light Emitting Diode Display Device) have been utilized.

Among these display devices, a liquid crystal display (LCD) has an array substrate including a thin film transistor, which is a switching element for controlling on / off each pixel region, and an array substrate including a color filter and / or a black matrix A display panel including a top substrate, a liquid crystal material layer formed therebetween, a driving unit for controlling the thin film transistor, a backlight unit (BLU) for providing light to the display panel, and the like , A pixel (PXL) electrode provided in a pixel region, and a common voltage (Vcom) electrode, and the transmittance of light is adjusted accordingly, thereby displaying an image.

In the case of such a liquid crystal display device, there is a backlight unit for providing light from the outside. Such a backlight unit may include a light source, a light guide plate, a reflection plate, an upper sheet, and the like. One or more frames or a chassis as a structure.

Such a frame or chassis includes a cover bottom or plate bottom which is a plate-like member for supporting the side and rear portions of the backlight unit, and a guide panel (not shown) provided in association with the cover bottom for supporting between the backlight unit and the display panel Guide Panel) are used.

On the other hand, although the optical sheet included in the backlight unit is disposed on the upper side of the light guide plate, since it may not be adhered to the light guide plate and has fluidity, it needs to be supported and fixed on a part of the display support structure such as a frame.

In recent notebook computers and portable electronic devices, attempts have been made to increase the proportion of the display screen in the apparatus along with downsizing of the apparatus. For this purpose, the size of the non-display area, the so-called bezel, The need for a narrow bezel or a narrow bezel is increasing.

The bezel of such a display device includes a non-display area where a drive circuit or the like of the display panel constituting the display device is disposed, a space occupied by the outer structure of the display device, and the like.

On the other hand, although the non-display area of the display panel is continuously reduced due to the improvement of the array substrate forming technique and the like, the outer support structure of the display device has a function to be performed for each component part,

Particularly, in a display device used in a notebook computer or the like, in the case of a guide panel coupled with a cover bottom to support the display panel, the guide panel is disposed inside the cover bottom so as to support the display panel on the upper surface, It is required to have various functions, so that the shape and structure are complicated, and accordingly, the reduction of the size of the bezel is also limited.

SUMMARY OF THE INVENTION The present invention has been made in view of these points, and it is an object of the present invention to provide a support structure for a new type of display device having a simple structure while supporting a display panel and an optical sheet fixing function, present.

In view of the foregoing, it is an object of the present invention to provide a display device including an outer support structure capable of a narrow bezel.

It is another object of the present invention to provide a panel support frame which is a simple form bending frame disposed outside the cover bottom, by removing the guide panel which is a complicated structure plastic structure disposed inside the existing cover bottom and minimizing the size of the bezel And a display device capable of displaying an image.

Another object of the present invention is to provide a panel support frame having a simple structure and a cover bottom of simple structure to be combined with the panel support frame while performing the function of supporting the display panel and the optical sheet in the display device, A display device having a narrow bezel is provided.

According to an aspect of the present invention, there is provided a display device comprising: a display panel; A backlight unit including a light source, a light guide plate, and an optical sheet disposed above the light guide plate and having a fixing protrusion; A cover bottom which houses the backlight unit and has a side wall portion extending parallel to the side surface of the light guide plate; A panel support frame having a vertical support portion covering the side wall portion of the cover bottom from the outside and a horizontal support portion extending in the horizontal direction from the vertical support portion to support the bottom edge of the display panel; And a first double-sided adhesive member for bonding the inner surface of the vertical support portion of the panel support frame and the outer surface of the side wall portion of the cover bottom.

According to an embodiment of the present invention, implementation of a narrow bezel of a display device is possible.

More specifically, by providing a panel support frame, which is a simple form bending frame disposed outside the cover bottom of the display device, by removing the guide panel which is a complicated structure plastic structure disposed inside the existing cover bottom, The structure can be simplified, and as a result, the size of the bezel of the display device can be reduced.

1 is a schematic view of a notebook computer to which the present invention can be applied and a display device used therein.
2 is a cross-sectional view of the light-receiving portion side of a general display device.
Fig. 3 is a cross-sectional view of a non-fixed region in which the optical sheet is not fixed in the non-light-incident portion side of a general display device.
Fig. 4 is a cross-sectional view of a non-light emitting portion side of a general display device, of which a sheet fixing region in which an optical sheet is fixed.
5 is an exploded perspective view of a display device according to an embodiment of the present invention.
6 is a cross-sectional view of a display device according to an embodiment of the present invention.
7 is a cross-sectional view of an optical sheet fixing region of a display device according to an embodiment of the present invention.
8 is a partial cross-sectional view of a display device according to another embodiment of the present invention, showing only a panel support frame and a cover bottom in an enlarged scale.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. In the drawings, like reference numerals are used to denote like elements throughout the drawings, even if they are shown on different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the components from other components, and the terms do not limit the nature, order, order, or number of the components. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; intervening "or that each component may be" connected, "" coupled, "or " connected" through other components.

1 is a schematic view of a notebook computer to which the present invention can be applied and a display device used therein.

As shown in FIG. 1, an electronic device such as a notebook computer may include a display device unit 100, a main device unit 110 'on which a main circuit board and input / output means are mounted, and the like.

The display unit 100 includes a display area 120 in which an image is displayed and a bezel area 130 that is an area in which an image is not displayed while forming an outline around the display area. do.

In addition, the light source unit 110 is disposed on one side of the display device 100, generally, on the side of the main device side.

The bezel area 130 of the display device constituting the display device 110 is formed by a space occupied by the outer structure of the display device in addition to the non-display area of the display panel itself such as a liquid crystal panel included in the display device.

Therefore, in order to reduce the bezel of the display device, it is necessary to reduce the size of the non-display area of the display panel and the support structure of the display device. The non-display area of the display panel is continuously reduced due to the improvement of the array substrate formation technique and the like , The outer support structure of the display device has a function to be performed for each component, and thus there is a limit in reducing the size thereof.

Particularly, as shown in FIG. 1 (a), the side of the light-incident portion where the light source 140 is disposed is not only a portion where the bezel B1 is connected to the main device 110 ' (B2) of the remaining three sides of the non-light-emitting portion side need to be reduced in consideration of the influence on the appearance of the display device and the like, since the necessity or possibility of reducing the size of the bezel is low. This is big.

However, a cover bottom, a guide panel, and the like are used as the outer support structure of the display device on the side of the non-light emitting portion. Since the unique functions and the connection relations of the components are fixed, It was not easy to implement the low-bezel.

Such a reason will be further explained with reference to Figs. 2 to 4 below.

FIG. 2 is a cross-sectional view (A-A 'line in FIG. 1) of a general display device, and FIG. 3 is a cross-sectional view 4 is a cross-sectional view (C-C 'line section in Fig. 1) of the sheet fixing region where the optical sheet is fixed among the non-light-incident portion side of the general display apparatus.

 2, the display device to which the present invention can be applied includes a display panel 240 such as a liquid crystal display panel and a backlight unit 220 disposed below the display panel 240 to irradiate light to the display panel, A Cover Bottom or a Plate Bottom 210 of a metal or plastic material that supports the unit 220 and extends over the entire rear surface of the display device.

Further, a guide panel 230 may be further provided, which is fixed to the cover bottom 210 to connect the backlight unit 220 to the display panel 140. A double-sided tape (not shown) is attached to a part of the upper surface of the horizontally extended portion of the guide panel 230, and the display panel 240 is disposed on the upper surface of the guide panel 230 so that the display panel can be fixedly mounted.

Further, the display device may further include a case top 250 which covers the side surface of the cover bottom 110 disposed at the outermost portion and extends to a part of the front surface of the display panel to protect the front edge of the display panel .

The case top 250 may be disposed at a rear portion of the plate bottom 240 to surround the side surface of the cover bottom 110 to extend to a front portion of the display panel 240, On-film (COF) circuit unit, which is a connection circuit for connecting a printed circuit board (not shown) to a display panel.

Further, in some cases, as shown in Fig. 2, the case top may cover the side of the display device as well as the entire rear surface, and in this case, a different term from the case top may be used.

In the case of a liquid crystal display panel, the display panel 240 includes a plurality of gate lines, a data line and a pixel defined in the intersecting region, and a thin film transistor as a switching element for adjusting the light transmittance in each pixel An upper substrate provided with a color filter and / or a black matrix, and a liquid crystal material layer formed therebetween.

The display panel to which the present invention can be applied is not limited to such a liquid crystal display panel but may be a display panel such as a plasma display or the like, . ≪ / RTI >

2, a backlight unit 220 used in a liquid crystal display device to which an embodiment of the present invention can be applied includes a light source such as an LED, a holder for fixing a light source, a light source driving circuit, and the like A light guide plate (light guide plate) 222 for diffusing light to the entire panel area, a diffuser plate, a reflection plate 224 for reflecting light toward the display panel, a light source On / Off Etc., and one or more optical sheets 226 disposed on the light guide plate for luminance enhancement, diffusion and protection of light, and the like.

The guide panel 230 is a plastic structure which is fixedly coupled to the inner surface of the cover bottom 210 and attaches the display panel 160 on the upper side while covering a part of the front surface of the backlight unit 220.

The guide panel 230 can support a part of the light source part on the light incoming part side and the bottom surface of the guide panel 230 is fixed to the inner surface of the cover bottom 210 by the double sided tape 260 or the like on the non- And supports the display panel 240 by supporting the display panel 240 from below.

At this time, the double-sided adhesive tape 260 not only bonds the bottom surface of the guide panel 230 to the inner surface of the cover bottom 210 but also adheres to the bottom surface of the light guide plate 222 constituting the backlight unit or a part of the bottom surface of the reflector 224 To the inner surface of the cover bottom 210.

The optical sheet 226 of the backlight unit 220 is disposed on the light guide plate 222 and may not be adhered to the light guide plate 222. Even if the optical sheet 226 is bonded to the upper surface of the light guide plate 222 An external impact may be applied in the process of transporting or testing the display device to mount the device on a set device, which is a final electronic product such as a notebook computer, a TV, etc. In this case, the position of the optical sheet 226 may be changed.

As described later, the optical sheet 226 functions to condense and diffuse the light from the light guide plate, so that the display image may be deteriorated when the position of the optical sheet is changed.

Therefore, it is necessary to prevent the change of the position of the optical sheet by fixing the optical sheet to the remaining fixed support structure of the display device, in addition to simply placing the optical sheet on top of the light guide plate.

4, a protruding portion 226 'protruding outward is formed in a part of the optical sheet 226, and a part of the area of the non-light-input-portion-side guiding panel 230 is different from the rest of the optical sheet 226, A foam pad or a single-sided tape 270 capable of fixing the optical sheet can be disposed on the top of the protrusion 226 'of the optical sheet 226 to fix the optical sheet.

3 and 4, in the conventional display support structure, the guide panel 230 is adhered to the inner surface of the cover bottom by the double-sided tape 260 while being disposed inside the cover bottom 210, The strength of the guide panel 230 must be maintained at a predetermined level or more. Therefore, the size of the bottom surface of the guide panel 230 should be maintained to some extent.

Therefore, as shown in Fig. 3, the width W2 of the non-display area which is the area where the bottom surface of the guide panel of the display device and the bottom surface of the light guide plate are adhered to the double- There is a limit in reducing the size of the bezel on the non-light incident side of the display apparatus.

4, the conventional guide panel 230 has a problem that the structure of the guide panel 230 becomes complicated because the shape of the sheet fixing area for fixing the optical sheet is different from that of the sheet fixing area for fixing the optical sheet .

4, the shape of the guide panel is changed in the seat fixing area. However, in order to fix the guide panel 230 to the cover bottom 210 for the same reason as that of FIG. 3, There is still a limit to the size reduction of the bezel.

Particularly, in the apparatus such as the notebook computer shown in Fig. 1, the guide panel is not required to be fixed to the cover bottom at the vertical sides on both sides of the light-incoming portion, and therefore the narrow bezel can be realized on the vertical side.

However, since the structure as shown in Figs. 3 and 4 is required for the horizontal side of the light-receiving portion, a minimum size of 3.9 mm is required for a 14-inch notebook display device, and a bezel size of 3.9 mm There is a problem that the supporting force of the guide panel deteriorates or the supporting force to fix the optical sheet to the guide panel deteriorates.

4, when the width of the foam pad or the cross-section tape 270 for attaching the protrusion 226 'of the optical sheet to the upper surface of the guide panel 230 is too large, There is a problem that the assemblability of the optical sheet fixing is remarkably reduced.

SUMMARY OF THE INVENTION The present invention has been made in view of these points, and it is an object of the present invention to provide a sheet fixing apparatus, which uses a panel supporting frame having a folding structure to surround the outside of a cover bottom in place of a conventional guide panel, The present invention provides a display support structure that is simple yet capable of implementing a narrow bezel while retaining functions such as sheet fixing and display panel support.

Hereinafter, one embodiment of the present invention will be described in detail with reference to FIGS. 5 to 8. FIG.

FIG. 5 is an exploded perspective view of a display device according to an embodiment of the present invention, and FIG. 6 is a cross-sectional view of a display device according to an embodiment of the present invention.

5 and 6, a display device according to an embodiment of the present invention includes a display panel 540 for displaying an image, a backlight unit 520, a cover bottom 510, And a panel support frame 530 having a vertical support part for covering the part from the outside and a horizontal support part extending from the vertical support part in the horizontal direction to support the bottom edge of the display panel.

The backlight unit 520 includes a light source unit (not shown) including a light source, a light guide plate 522 for diffusing the light from the light source to the entire display device, And may include an optical sheet 526 having a fixing protrusion 526 '.

The cover bottom 510 is a support member having a bottom plate covering the entire rear surface of the display device and a side wall portion 512 extending perpendicularly from the edge of the bottom plate. In the region corresponding to the protrusion 536 ', protrusion receiving grooves 514 for receiving the fixing protrusion 536' of the optical sheet are formed with a predetermined width.

The panel support frame 530 is a frame-shaped support member having a "? &Quot; magnetic cross-section disposed on the outside of the cover bottom 510. The panel support frame 530 includes a vertical support portion And a horizontal support portion 532 extending in the horizontal direction from the vertical support portion to support the bottom edge of the display panel 540.

The display device according to the present embodiment further includes a first double-sided adhesive member 560 for bonding the inner surface of the vertical support portion 534 of the panel support frame 530 to the outer surface of the side wall portion 512 of the cover bottom 510 .

The first double-sided adhesive member 560 is formed on the inner surface of the vertical support portion of the panel support frame and the outer surface of the side wall portion of the cover bottom 510 in the region where the projection receiving grooves 514 of the cover bottom 510 do not exist, It can be bonded.

That is, as in Figs. 5 to 7, the first double-sided adhesive member 560 may not be provided in the sheet fixing area (Fig. 7).

7, the height of the side wall part 512 of the cover bottom 520 is lower than that of the remaining area, and therefore the contact area with the vertical support part of the panel support frame may be insufficient.

Therefore, when the first double-sided adhesive member 560 is provided up to such a sheet fixing area, the shape of the first double-sided adhesive member can be somewhat complicated. In the case where the shape of the first double- The width of the tape becomes small and the adhesion of the two members may be deteriorated.

For this reason, the first double-sided adhesive member 560 is provided only at the portion other than the sheet fixing region, thereby making it possible to simplify the form of the first double-sided adhesive member while firmly bonding the panel support frame and the cover bottom .

The display device further includes a case top 550 extending around the entire vertical support portion 534 of the panel support frame 530 and extending to a part of the front surface of the display panel 540 and a part or all of the rear surface of the cover bottom 510 As shown in FIG.

Hereinafter, the detailed configuration of the components constituting the display device according to the present embodiment will be described in detail.

As described above, the backlight unit 520 shown in Figs. 5 and 6 again includes a light source (not shown), a light guide plate 522 for transmitting light from the light source, And an optical sheet 526 formed on the light guide plate 522 and having a protruding portion or protruding portion 526 'protruding outward in a predetermined region.

The light source unit of the backlight unit may include a light source device and a light source holder having a long plate-like structure that supports the light source device and includes an LED driving circuit for driving the light source, and the light source device of the light source module includes a light emitting diode A light emitting diode (LED) or a light emitting diode strip may be used, but the present invention is not limited thereto, and any type of light source may be used as long as it can provide light necessary for a display panel.

The light guide plate (LGP) 522 may be formed of a rectangular clear plastic sheet that is die-cut, extruded, or injection-molded from a plastic sheet, and light from a light source such as a light emitting diode array, And is diffused across the back surface of the display panel while being totally reflected inside the light guide plate. Light emitted through the flat upper surface of the light guide plate functions as a backlight of the display panel.

As the material of the light guide plate 522, a material such as polymethyl methacrylate (PMMA), MS (methystyrene) resin, polystyrene (PS), polypropylene (PP), polyethylene terephthalate : PET) and polycarbonate (PC), but the present invention is not limited thereto.

In particular, the bottom surface of a part of the edge of the light guide plate 524 can be adhesively fixed to the inner surface of the cover bottom 510 by the double-sided tape 380.

The reflection plate 524 is disposed on the back surface of the light guide plate 522 and functions to improve the brightness of light by reflecting the light that has passed through the back surface of the light guide plate toward the display panel (not shown).

The optical sheet 526 on the light guide plate 522 may include a diffusion sheet and at least one light collecting sheet or the like and diffuse or condense light passing through the light guide plate so that a more uniform surface light source is incident on the display panel .

In this case, the optical sheet 526 used in the embodiment of the present invention is provided with the fixing projections (not shown) which are inserted and accommodated in the projection receiving grooves 514 formed in the side wall portion 512 of the cover bottom 510 526 'are formed in two or more regions.

The optical sheet 526 according to the present embodiment is composed of two or more individual sheets. Examples of the individual sheets include a light collecting sheet or a prism sheet PS having a light collecting function, a diffusion sheet A diffusing sheet (DS), and a reflective polarizing film for improving brightness called a dual brightness enhancement film (DBEF), but the present invention is not limited thereto.

That is, the optical sheet 526 according to the present embodiment may be formed of a combination of two or more of a light collecting sheet or a prism sheet, a diffusing sheet, and a reflective polarizing film. For example, A Diffuser Down Sheet, a Prism Down Sheet, and a Prism Up Sheet.

A light collecting sheet or a prism sheet (PS) among the individual functional sheets constituting the optical sheet 526 typically includes a light-converging pattern or the like on a sheet in the form of a transparent film, thereby collecting incident light in a certain direction Condenser function.

On the other hand, a diffusing sheet (DS) for diffusing light is an optical sheet having a function of diffusing incident light in various directions, and may be constituted by including a diffusion pattern or a diffusion particle in a transparent sheet have.

In addition, the reflection type polarizing film is an optical film that transmits only light that vibrates in one direction among natural incident lights while vibrating in various directions, and reflects light that vibrates in the other direction, and has a luminance enhancement called DBEF (dual brightness enhancement film Film.

The cover bottom 510 constitutes the rear and side view and supports of the display device according to the present embodiment, and is a metal or plastic frame structure that is bent in a L-shaped form as a whole.

A reflective plate 524 of the backlight unit 520 and the lower surface of the light guide plate 522 are seated on the inner surface of the cover bottom 510 and a double-sided tape 380 or the like is provided between the edge area of the lower surface of the light guide plate 522 and the inner surface of the cover bottom So that the backlight unit can be fixed to the cover bottom.

The cover bottom 510 according to the present embodiment is different from the conventional cover bottom structure in that it is cut into a constant area (sheet fixing area) for securing the optical sheet among the side wall parts 512 constituting the cover bottom with a constant constant width A protrusion receiving groove 514 for receiving the fixing protrusion 536 'of the optical sheet is formed.

7, the fixing protrusion 526 ', which is an ear part of the optical sheet 526, is inserted into the protrusion receiving groove 514 of the cover bottom 510 and the fixing protrusion 526' By adhering and fixing to the bottom surface of the horizontal support portion 532 of the panel support frame 530, the optical sheet can be firmly fixed to the support structure.

The detailed structure of the sheet fixing area and its effect will be further explained with reference to Fig. 7 below.

In the present specification, the cover bottom 510 is not limited to the terms but may be a cover bottom, a base frame, a metal frame, a metal chassis, a chassis base Chassis base, m-chassis, etc., and it should be understood as a concept including all frame or plate-like structures disposed at the base of the display device as a support for fixing at least one of the display panel and the backlight unit something to do.

The cover bottom 510 may be formed of a metal press structure, but not limited thereto, and may be formed by injection molding of a reinforced plastic material or the like.

The panel supporting frame 530 which is a main constituent part of the present invention is a frame-shaped supporting member having a "? &Quot; magnetic cross-section disposed outside the cover bottom 510, And a horizontal support portion 532 extending in the horizontal direction from the vertical support portion to support the bottom edge of the display panel 540. [

The panel support frame 530 is a simple frame structure having no change in the cross-sectional shape of at least three sides of the four sides of the display device, and is advantageous in that the shape and structure of the panel support frame 530 are simpler than those of the conventional guide panel .

The bottom surface of the display panel 540 is seated on the upper surface of the horizontal support portion 532 of the panel support frame 530 and the upper surface of the horizontal support portion of the panel support frame can be fixedly coupled with a double-

The panel support frame 530 may be formed of a press structure made of a metal like the cover bottom, but it is not limited thereto. The panel support frame 530 may be made of a molding material made of synthetic resin such as polycarbonate, It might be.

In the case of the liquid crystal display panel, the display panel 540 that is seated on the horizontal support portion 532 of the horizontal support frame 530 according to the present embodiment is again composed of a plurality of gate lines and data lines and pixels An array substrate including a thin film transistor serving as a switching element for adjusting light transmittance in each pixel, an upper substrate provided with a color filter and / or a black matrix, and a liquid crystal material layer formed therebetween And the like.

The term " display device " is used herein to refer to a display device such as a liquid crystal module (LCM) including a display panel and a driver for driving the display panel, as well as a notebook computer , A set of electronic devices or set devices such as a television, a computer monitor, a mobile electronic device such as a smart phone or an electronic pad, and the like.

 That is, the display device in this specification is used to mean not only a conferring display device such as LCM but also a set device which is an application including the display device.

In addition, the display panel to which the present invention can be applied is not limited to such a liquid crystal display panel, and may be a display device such as a plasma display or the like. In addition to a display device such as a plasma display, . ≪ / RTI >

The case top 550 is a member that extends to the front portion of the display panel 540 and a part or all of the rear surface of the cover bottom 510 while enclosing the entire vertical support portion 534 of the panel support frame 530, And functions to protect the front surface of the display panel.

The case top 550 includes all the members having the functions described above, and is not limited to the term, and may be expressed by other terms such as a back cover, a front cover, a cover shield, and the like.

The first double-sided adhesive member 560 adheres the inner surface of the vertical support portion 534 of the panel support frame 530 and the outer surface of the side wall portion 512 of the cover bottom 510 to the panel support frame 530 and the cover bottom 510, for example, a double-sided adhesive tape, a foam pad, an adhesive sheet, or the like.

The second double-sided adhesive member 570 is fixed to the panel supporting frame 530 by fixing the upper surface of the fixing projection 526 'of the optical sheet inserted into the projection receiving groove 514 of the side wall part 512 of the cover bottom 510, And may also be implemented in various forms such as a double-sided adhesive tape, a foam pad, an adhesive sheet, and the like.

 1 double-sided adhesive member 560 can bond the inner surface of the vertical support portion of the panel support frame to the outer surface of the side wall portion of the cover bottom 510 only in the region where the projection receiving grooves 514 of the cover bottom 510 do not exist.

The principle of reducing the size of the bezel when the structure according to the present invention is used will be described with reference to FIGS. 6 and 7. FIG.

6, the vertical support portion 534 of the panel support frame 530 is adhered and fixed to the outer side of the side wall portion of the cover bottom 520 according to the present embodiment. At this time, the space occupying the bezel area of the display device becomes the thickness of the side wall portion of the cover bottom and the thickness of the vertical support portion 534 of the panel support frame 530. As a result, in the conventional structure as shown in FIG. 3, Is smaller than the space occupied by the space.

In the structure of FIG. 3, a guide panel exists between the end portion of the light guide plate or optical sheet of the backlight unit and the cover bottom side wall portion, which enlarges the size of the bezel. On the other hand, Since the light guide plate 522 of the unit or the end portion of the optical sheet can be disposed close to the side wall portion of the cover bottom 510, the width W2 'of the non-display area by the support structure as a whole can be reduced.

3, the width of the non-display region of the bezel region formed by the guide panel and the cover bottom is W2, whereas in the embodiment of FIG. 6, the width of the non-display region formed by the panel support frame and the cover bottom The width W2 'of the bezel can be reduced, and consequently the width of the bezel is reduced.

 7, in the conventional structure according to Fig. 4, the adhesive space for fixing the bottom surface of the guide panel, the bottom surface of the light guide plate and the cover bottom, and the non-display area In the embodiment of FIG. 7, the fixing projection 526 'of the optical sheet is adhered to the bottom of the horizontal support portion 532 of the panel support frame and the width of the support structure is larger than the thickness of the cover bottom and the panel support frame The non-display area width W2 'in the resulting sheet fixing area is reduced.

Therefore, the width of the non-display area can be reduced even in the sheet fixing area, so that the overall size of the bezel can be reduced.

As a result of the actual test, when the structure according to the present embodiment is applied, the size of the bezel (B2 in Fig. 6) is at least 3.9 mm, ) To 2.6 mm.

5 and 7, according to the embodiment of the present invention, a portion of the side wall 512 of the cover bottom 510 is removed to form the protrusion receiving portion 514, and the fixing of the optical sheet 526 4 and FIG. 4) by having a structure in which the protrusion 526 'is inserted into the protrusion receiving portion 514 and adhered to the bottom surface of the horizontal support portion 532 of the panel support frame 530 disposed thereon The structure is simplified in that a complicated guide panel is not used in comparison, and the bezel width in the optical sheet fixing region is also reduced.

8 is a partial cross-sectional view of a display device according to another embodiment of the present invention, showing only a panel support frame and a cover bottom in an enlarged scale.

8, the vertical support portion 534 of the panel support frame 530 may further include an extension portion 535 having a wider portion than the extension portion 535. In the extension portion 535, A single-sided adhesive member 710 may be additionally disposed outside the side wall portion 512 of the cover bottom 510 corresponding to the following regions.

 At this time, the first double-sided adhesive member 560 provided on the inner surface of the vertical support portion 534 of the panel support frame 530 must be provided up to the region of the extension portion 535.

The embodiment as shown in FIG. 8 is provided because of the advantages of assembling the panel support frame 530 and the cover bottom 510 according to the embodiment of the present invention.

Since both the panel support frame 530 and the cover bottom 510 according to the present embodiment have a rectangular frame structure surrounding the four sides of the display device, the panel support frame 530 The outer surface of the side wall portion 512 of the cover bottom and the inner surface of the vertical support portion 534 of the panel support frame are bonded and fixed with the first double-sided adhesive member 560. [

At this time, first, the first double-sided adhesive member 560 is first bonded to the inner surface of the vertical support portion 534 of the panel support frame or the outer surface of the side wall portion 512 of the cover bottom, and then the two members are covered and joined We must proceed.

Since the space between the outer surface of the side wall portion 512 of the cover bottom and the inner surface of the vertical support portion 534 of the panel support frame is small, the first double-sided adhesive member previously attached to one side of the two members is pushed There is a possibility that the adhesion of both members may occur due to such a phenomenon.

8, a single-sided adhesive member 710 is adhered to the outside of the side wall portion 512 of the cover bottom 510 corresponding to the area below the extending portion 535, and in this state, The vertical support portion 534 of the panel support frame 530 with the enlarged extension portion 535 is engaged outside the side wall portion of the cover bottom and the first double-sided adhesion member 560 attached to the extension portion 535 Sided adhesive tape 710, whereby the above-described double-sided tape can be prevented from being pushed and thus the contact failure can be minimized.

8, the vertical supporting portion 534 of the panel supporting frame 530 is formed with an enlarged portion 535 that widens the lower portion, so that the assembling property of the panel supporting frame and the cover bottom, Can be improved, and the defective assembly can be minimized.

 According to the embodiments of the present invention as described above, it is possible to provide a panel support frame, which is a simple bending frame disposed outside the cover bottom of a display device, by providing a guide panel, which is a plastic structure of a complicated structure, The outer support structure of the display device can be simplified, and as a result, the bezel size of the display device can be reduced.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. , Separation, substitution, and alteration of the invention will be apparent to those skilled in the art. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

510: cover bottom 512:
514: projection receiving groove 522: light guide plate
526: Optical sheet 530: Panel support frame
532: horizontal support 534: vertical support
550: Case top 560: First double-sided adhesive member
570: second double-faced adhesive member 535:

Claims (6)

Display panel;
A backlight unit including a light source, a light guide plate, and an optical sheet disposed above the light guide plate and having a fixing protrusion;
A cover bottom which houses the backlight unit and has a side wall portion extending parallel to the side surface of the light guide plate;
A panel support frame having a vertical support portion covering the side wall portion of the cover bottom from the outside and a horizontal support portion extending in the horizontal direction from the vertical support portion to support the bottom edge of the display panel;
A first double-sided adhesive member for bonding the inner surface of the vertical support portion of the panel support frame to the outer surface of the side wall portion of the cover bottom;
. The method according to claim 1,
Wherein the side wall portion of the cover bottom is provided with a projection receiving groove for receiving the fixing projection of the optical sheet. 3. The method of claim 2,
Wherein the fixing projecting portion of the optical sheet is inserted into the projection receiving groove of the side wall portion of the cover bottom and is bonded to the bottom surface of the horizontal supporting portion of the panel supporting frame by the second double- The method of claim 3,
Wherein the first double-sided adhesive member adheres the inner surface of the vertical support portion of the panel support frame to the outer surface of the side wall portion of the cover bottom only in a region where the projecting portion receiving groove of the cover bottom does not exist. The method according to claim 1,
Further comprising a case top surrounding a vertical support portion of the panel support frame and extending to a front portion of the display panel and a rear portion of the cover bottom. The method according to claim 1,
Wherein the vertical support portion of the panel support frame includes an extension portion that widens the lower portion, and a one-sided adhesion member is further disposed outside the side wall portion of the cover bottom corresponding to the region below the extension portion.

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