KR101495209B1 - Display device - Google Patents

Abstract

A display device capable of reducing the overall size is disclosed. The display device includes a display module and a front case. The display device includes a display module and a front case. The display module displays the image. The front case covers one surface of the display module and includes a front case having a first boss formed corresponding to the inside of the edge of the display module. Accordingly, the display module is formed at a position corresponding to the first boss, and includes a boss fixing portion having a coupling hole into which the first boss is inserted and fixed. Therefore, the display module includes the boss fixing portion in which the coupling hole is formed in which the first boss is inserted and fixed from the inside of the edge, thereby reducing the overall size of the display device.

Description

Display device {DISPLAY DEVICE}

The present invention relates to a display device, and more particularly to a display device capable of reducing the overall size.

In general, a liquid crystal display device includes a backlight assembly that supplies light and a liquid crystal display panel that displays an image using the light.

Liquid crystal displays are widely used throughout the industry because they are thin, light, have low power consumption and low driving voltage. In particular, recently, the amount of use thereof has been rapidly increasing in large electronic devices such as TVs.

The liquid crystal display device used in such a large electronic device is enclosed by a front case and a rear case of a plastic material in order to be protected from the outside and to be aesthetically pleasing. At this time, the outer surface of the liquid crystal display device itself is generally covered with a metal chassis.

Here, a structure in which the liquid crystal display device is coupled to the front case and the rear case will be briefly described. A bracket is coupled to the edge of the liquid crystal display device. The first and second bosses are formed on the front case and the rear case so as to correspond to the bracket, and are coupled to the bracket. Here, the bracket is made of a metal material so as to have the same thermal expansion rate as the chassis, and the first and second bosses are formed integrally with the front case and the rear case, and are made of a plastic material.

However, the display device has a problem that the overall size of the display device is increased due to the bracket. In addition, since the first and second bosses and the bracket are made of different materials, a predetermined collision occurs due to different thermal expansion rates, and noise may be generated.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to reduce the overall size of the display device by forming a boss fixing portion for inserting and fixing the boss into the display device.

The display device according to one aspect of the present invention includes a display module and a front case. The display module displays an image. The front case covers the front surface of the display module and includes a front case having a first boss corresponding to the inside of the edge of the display module. The display module may include a boss fixing part formed at a position corresponding to the first boss and having a coupling hole through which the first boss is inserted and fixed.

The display device further includes a rear case covering the back surface opposite to the first surface of the display module and having a second boss formed to correspond to the first boss and inserted and fixed to the coupling hole.

And the boss fixing part is formed at an edge of the display module. Further, the boss fixing portion includes a boss insertion member having the coupling hole formed therein. The boss insertion member includes a buffer material. For example, the boss insertion member may be made of rubber.

Meanwhile, the coupling hole may have a shape corresponding to an end surface of the first and second bosses. For example, the first and second bosses may have a conical shape, and the coupling hole may have a circular shape.

Further, the boss fixing portion may have a protrusion on the inner surface of the coupling hole. Here, the protrusion may have a hemispherical shape.

The first and second bosses may be coupled to each other at the coupling hole. The boss fixing part may be formed on a side of the display module.

According to such a display device, the display device has a boss fixing portion formed inside the edge of the display module in which a first boss formed in the front case and a second boss formed in the rear case are inserted and fixed in a buffered manner, It is possible to reduce the overall size by removing the conventional bracket.

In addition, when fixing the first and second bosses using a conventional metal bracket, it is possible to prevent noise and cracks caused by differences in thermal expansion rate and contraction ratio.

1 is an exploded perspective view showing a display device according to an embodiment of the present invention.
2 is a plan view showing the display module shown in Fig.
3 is a cross-sectional view taken along line I-I 'of Fig.
4 is an enlarged view showing an embodiment in which the first and second bosses shown in Fig.
FIG. 5 is an enlarged view showing another embodiment in which the first and second bosses shown in FIG. 3 are coupled to the coupling port. FIG.
FIG. 6 is an enlarged view showing another embodiment in which the first and second bosses shown in FIG. 3 are coupled to the coupling port. FIG.
FIG. 7 is an enlarged view showing another embodiment in which the first and second bosses shown in FIG. 3 are coupled to the coupling port. FIG.
8 is a perspective view showing the boss fixing portion shown in Fig. 3 in detail.
9 is a perspective view showing an embodiment of the boss insertion member shown in FIG.
10 is a perspective view showing another embodiment of the boss insertion member shown in Fig.
11 is a plan view showing a display module among display devices according to another embodiment of the present invention.
Fig. 12 is a perspective view specifically showing a side end of the boss fixing portion shown in Fig. 11;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is an exploded perspective view showing a display device according to an embodiment of the present invention, FIG. 2 is a plan view showing the display module shown in FIG. 1, and FIG. 3 is a cross-sectional view taken along the line I- to be.

Referring to FIGS. 1, 2 and 3, a display device 100 according to an embodiment of the present invention includes a display module 200, a front case 300, and a rear case 400.

The display module 200 includes a display unit 210 for displaying an image desired by the user and a cover chassis 220 for covering an edge of the display unit 210. The display unit 210 is substantially divided into a display area in which an image is displayed and a peripheral area.

The cover chassis 220 is made of a metal material having a thermal expansion coefficient and a shrinkage rate relatively lower than those of a plastic material. The cover chassis 220 is opened corresponding to the display area of the display unit 210. That is, the cover chassis 220 covers the peripheral area. At this time, the peripheral region is generally referred to as a bezel.

Meanwhile, the display module 200 may be, for example, a liquid crystal display device that displays an image using liquid crystal. A liquid crystal display generally includes a liquid crystal display panel displaying an image and a backlight assembly supplying light to the liquid crystal display panel. Here, the liquid crystal display panel has a structure in which the liquid crystal is disposed between two substrates. Alternatively, the display module 200 may include an organic light emitting display device for displaying an image using an organic light emitting device, or a plasma display device using plasma.

The front case 300 covers one side of the display module 200. Specifically, when the display module 200 is a liquid crystal display device, the front case 300 can cover the liquid crystal display panel side. The front case 300 includes a front cover 310 directly corresponding to the one surface and a front extension 320 extending from the front cover 310 to cover the display module 200.

The front cover part 310 is substantially opened corresponding to the display area of the display unit 210 so that an image displayed on the display module 200 is exposed to the outside. The front cover portion 310 can substantially cover only the upper surface of the cover chassis 220. [ Alternatively, the front cover 310 may be formed of a transparent material corresponding to the display area.

The front case 300 may further include a front bending portion 330 extending diagonally from the inner side of the front cover portion 310 to the display unit 210. The front bending part 330 prevents the foreign objects formed from the outside from flowing into the inside of the display module 200. In order to further maximize the effect, a gasket made of a sealing material may be further formed at the end of the front bending part 330. Alternatively, the front case 300 may include a gasket, instead of the front bend 330.

The front case 300 is formed with a first boss 312 corresponding to an edge of the display module 200. Specifically, the first boss 312 is protruded from the front cover 310 of the front case 300. The first boss 312 may have a tapered shape whose outer diameter is reduced from the front cover portion 310. That is, the first boss 312 may have a conical shape. Alternatively, the first boss 312 may have a polygonal columnar shape.

For example, the first boss 312 may have an outer diameter of about 12 mm at a position in contact with the front cover portion 310 and an outer diameter of about 8 mm at a position farthest from the front cover portion 310 .

The shape of the first boss 312 is for facilitating the operation of inserting and fixing the coupling boss 510 to be described below. The first boss 312 is formed integrally with the front cover part 310. Alternatively, the first boss 312 may be formed separately from the front case 300 and coupled with the front cover 310. At this time, the first boss 312 and the front case 300 may be coupled by a coupling member such as a bolt or an adhesive for coupling the front case 300. The front case 300 is made of a plastic material having a thermal expansion coefficient and a shrinkage ratio that are relatively higher than those of a metal material.

The rear case 400 covers a back surface opposite to one surface of the display module 200 covered by the front case 300. The rear case 400 includes a rear cover 410 directly covering the back surface and a rear extension 420 extending from the rear cover 410 to engage with the front extension 320 of the front case 300. [ . Such a rear case 400 substantially has a structure for housing the display module 200.

On the other hand, any one of the rear extensions 420 may be extended longer than other positions to improve stability during installation when the display device 100 of the present invention is used upright. The rear cover 410 or the rear extension 420 of the rear case 400 may have a curved shape in order to improve the overall appearance of the display device 100. [

In the rear case 400, a second boss 412 is formed corresponding to the position of the first boss 312. The second boss 412 is made of a material having the same coefficient of thermal expansion and shrinkage as the first boss 312.

The second boss 412 generally includes a control main board for controlling the display module 200 and an electronic device for convenience of the user on the rear surface of the display module 200, Can be formed relatively longer. Hereinafter, the second bosses 412 have the same features as the first bosses 312, and the detailed description thereof will be omitted.

Accordingly, the display module 200 is formed with the boss fixing portions 500 at positions corresponding to the first and second bosses 312 and 412. That is, the boss fixing portion 500 is formed at the edge of the display module 200. Specifically, the boss fixing portion 500 is formed at the edge of the display module 200. The boss fixing portion 500 is formed by modifying a part of the display module 200. Alternatively, the boss fixing portion 500 may be separately manufactured from the outside and coupled to the display module.

If the display module 200 is a liquid crystal display device, the boss fixing part 500 can be formed by changing the shape of the mold frame serving as a frame of the backlight assembly in the liquid crystal display device. That is, the boss fixing portion 500 can be formed by changing the shape of the mold frame. Meanwhile, the cover chassis 220 may have a structure in which a part of the corners is cut to expose the boss fixing part 500 to the outside.

The boss fixing portion 500 serves to fix the first and second bosses 312 and 412 at the same time. The boss fixing portion 500 is formed on the inner side from the edge of the display module 200. This is to prevent the size of the display module 200 from increasing due to the boss fixing portion 500.

The boss fixing part 500 is formed with a coupling hole 510 into which the first and second bosses 312 and 412 are inserted. At this time, the boss fixing portion 500 is formed of a buffer material around the coupling hole 510. Thus, the boss fixing portion 500 can flexibly cope with the thermal expansion of the first and second bosses 312 and 412. Alternatively, the boss fixing portion 500 may be made of a buffer material itself.

Here, since the first and second bosses 312 and 412 generally have a tapered outer diameter of about 8 mm to about 12 mm, the coupling hole 510 has an inner diameter of about 8.5 mm to about 10 mm desirable. In addition, the coupling hole 510 may have a shape corresponding to the cross section of the first and second bosses 312 and 412, and may be circular, preferably, easy to process.

The boss fixing portion 500 has a thickness capable of fixing the first and second bosses 312 and 412 at the same time regardless of the thickness of the display module 200. [ However, in order to guide the first boss 312 or the second boss 412 to be coupled to the boss fixing part 500, the boss fixing part 500 may have a thickness smaller than the circumference. As in the present embodiment, the boss fixing portion 500 may have a thickness of about half the thickness of the display module 200. [

In addition to the engagement of the first and second bosses 312 and 412 with the boss fixing portion 500 in order to further secure the front case 300 and the rear case 400, A specific coupling portion such as a hook may be formed on the rear portion extension 420 of the rear portion case 320 and the rear portion of the rear case 400. [

The display device 100 of the present invention includes a first boss 312 formed in the front case 300 and a second boss 412 formed in the rear case 400, When the first and second bosses 312 and 412 are fixed using the bracket of the conventional metallic material by forming the boss fixing portion 500 having the boss fixing portion 500 formed at the edge of the display module 200, It is possible to prevent noise and cracks caused by the difference. In addition, since the conventional bracket is removed, the overall size of the display device 100 can be reduced.

4 is an enlarged view showing an embodiment in which the first and second bosses shown in Fig.

Referring to FIGS. 3 and 4, the first boss 312 of the front case 300 and the second boss 412 of the rear case 400 are coupled to each other in the coupling hole 510.

For this, a coupling hole may be formed in one of the first and second bosses 312 and 412, and the other coupling hole may be coupled to the coupling hole. Alternatively, a push-type hook may be formed on one of the first and second bosses 312 and 412, and an engaging groove may be formed on the other of the first and second bosses 312 and 412 to engage with the hook. In addition, the first and second bosses 312 and 412 may be coupled with magnets at opposite ends thereof.

Therefore, the front case 300 and the rear case 400 can be easily managed by independently connecting the front case 300 and the rear case 400 regardless of the display module 200.

FIG. 5 is an enlarged view showing another embodiment in which the first and second bosses shown in FIG. 3 are coupled to the coupling port. FIG.

Referring to FIG. 5, the first boss 313 and the second boss 413 are coupled to each other outside the coupling hole 510.

That is, the first boss 313 penetrates through the coupling hole 510 as a whole, and is coupled to the second boss 413. Alternatively, the second boss 413 may be coupled to the first boss 413 through the coupling hole 510 as a whole.

The coupling between the first boss 313 and the second boss 413 is performed outside the coupling hole 510 so that the state in which the first boss 313 and the second boss 413 are engaged can be visually confirmed There is an advantage that it can be.

FIG. 6 is an enlarged view showing another embodiment in which the first and second bosses shown in FIG. 3 are coupled to the coupling port. FIG.

Referring to FIG. 6, the first boss 314 and the second boss 414 are separated from each other.

That is, a predetermined space is formed between the first and second bosses 314 and 414. The first and second bosses 314 and 414 can be fixed only by the boss fixing portion 500. In other words, the front case (300 of FIG. 3) and the rear case (400 of FIG. 3) of FIG. 3 need to be managed like the display module (200 of FIG. 3).

Therefore, the first and second bosses 314 and 414 can secure sufficient space for their own thermal expansion, thereby preventing cracks from being generated due to the thermal expansion. Also, the lengths of the first and second bosses 314 and 414 can be shortened, and the cost saving effect can be obtained.

FIG. 7 is a perspective view showing another embodiment in which the first and second bosses shown in FIG. 3 are coupled to the coupling port. FIG.

Referring to FIG. 7, the first boss 315 and the second boss 415 are separated from each other at the coupling hole 510, and a boss 315 is provided between the first boss 315 and the second boss 415, A part of the fixing part 500 is changed and filled.

At this time, the boss fixing portion 500 includes a buffer material corresponding to the thermal expansion of the first boss 315 and the second boss 415. For example, the boss fixing portion 500 may include a rubber material. Accordingly, the coupling hole 510 can be divided into a first coupling hole 512 into which the first boss 315 is inserted and a second coupling hole 514 into which the second boss 415 is inserted.

If the boss fixing portion 500 is formed by changing the shape of the mold frame of the display module 200 of FIG. 1 (see FIG. 1), the gap between the first boss 315 and the second boss 415 Can be filled.

Accordingly, when the first boss 315 and the second boss 415 are separated from each other, the flow of the first boss 315 and the second boss 415, which may be generated, 2 bosses 415, it is possible to prevent them.

FIG. 8 is a perspective view showing the boss fixing part shown in FIG. 3, and FIG. 9 is a perspective view showing an embodiment of the boss insertion member shown in FIG.

3, 8 and 9, the boss fixing portion 500 includes a boss insertion member 520 having a coupling hole 510 formed therein.

The boss insertion member 520 is formed to be easily engaged and disengaged from the boss fixing portion 500. At this time, the boss fixing portion 500 may include a latching portion 530 to prevent the boss insertion member 520 from being separated naturally. Accordingly, the boss insertion member 520 can be formed with the engaging portion 522 which is engaged with the engaging portion 530.

The boss insertion member 520 is formed with a coupling hole 510 passing through the center thereof. The engagement hole 510 basically has a shape corresponding to the cross section of the first and second bosses. The coupling hole 510 has a hole shape. At this time, the coupling hole 510 may be chamfered to smoothly insert the first and second bosses 312 and 412.

Alternatively, two bosses 510 may be formed in the center of the boss insertion member 520. Specifically, one coupling hole 510 is formed in the direction of the first boss 312, and the other coupling hole 510 is formed in the direction of the second boss 412.

Further, since the first and second bosses 312 and 412 have a tapered shape, the inner surface of the coupling hole 510 also has a taper opposite to the first and second bosses 312 and 412 . That is, the coupling hole 510 may have a circular shape.

The boss insertion member 520 is made of a shock absorbing material having excellent impact absorbing capability. For example, the boss insertion member 520 is made of a rubber material. Alternatively, the boss insertion member 520 may be formed of a foamed resin having many pores. In addition, the boss insertion member 520 may be made of a silicon material having excellent oxidation resistance and durability. In addition, the boss insertion member 520 may be made of a Viton material having excellent corrosion resistance and wear resistance.

As described above, the boss fixing part 500 includes the boss inserting member 520 which is engaged and disengaged while the coupling hole 510 is formed, so that the maintenance cost can be reduced. This is because, when the coupling hole 510 is defective, only the boss insertion member 520 is replaced or repaired, not the entire boss fixing portion 500.

In addition, as the outer diameters of the first and second bosses 312 and 412 change, only the boss insertion member 520, which has a different fitting hole 510, can be replaced, thereby improving workability.

10 is a perspective view showing another embodiment of the boss insertion member shown in Fig.

Referring to FIGS. 3 and 10, the boss insertion member 540 has a protrusion 542 formed on the inner surface of the coupling hole 545. This means that the protrusion 542 can also be formed at the mouth of the engagement hole 545. [

The protrusion 542 is formed when the boss insertion member 540 is manufactured. That is, the protrusion 542 is made of a rubber material excellent in frictional force. The protrusion 542 prevents the first and second bosses 312 and 412 from being pulled out by the frictional force when the first and second bosses 312 and 412 are inserted into the engagement hole 545 .

The protrusions 542 may basically have a rounded shape to facilitate the insertion of the first and second bosses 312, 314. In one example, the protrusion 542 may have a hemispherical shape. Alternatively, the projecting portion 542 may have a rounded band shape along the inner surface of the engaging hole 545. Further, the protrusion 542 may have a shape in which the center is concave and the periphery thereof is protruded roundly.

As described above, the boss insertion member 540 prevents the first and second bosses 312 and 314 from being pulled out after being inserted into the coupling hole 545 by forming the protruding portion 542 having an excellent frictional force, The coupling strength between the second bosses 312 and 314 and the boss fixing portion 500 having the boss insertion member 540 can be improved.

FIG. 11 is a plan view showing a display module of a display device according to another embodiment of the present invention, and FIG. 12 is a perspective view specifically illustrating a side end of the boss fixing portion shown in FIG.

1, 2, 3, 4, 5, 6, 7, 8, 9 and 10, except for the additional formation of the boss fixing portion in the present embodiment, Reference numerals are used, and redundant description thereof will be omitted.

11 and 12, a boss fixing portion 550 formed on the display module 250 is formed at an edge and a side edge 260 at the same time. Alternatively, the boss fixing portion 550 may be formed only at one of the corner and the side edge 260.

Here, those corresponding to the corners of the boss fixing portion 550 have already been described in detail with reference to FIG. 1, FIG. 2, and FIG. 3, and a repeated description thereof will be omitted. It is also defined that the boss fixing portion 550 described below corresponds to the side end 260. [

The side end 260 may be a long side or a short side of the display module 250 when the display module 250 is a liquid crystal display device. Therefore, it is usually preferable to form only the side edge 260 corresponding to the longer side than the short side. This is because the lamps included in the backlight assembly of the liquid crystal display device are disposed along the longer side so that the side edges 260 corresponding to the longer sides have a predetermined margin than the side edges 260 corresponding to the shorter sides.

The boss fixing portion 550 may have a shape in which a portion corresponding to the side end 260 of the indicating unit 230 is recessed inward. That is, the boss fixing portion 550 may have a thickness smaller than the circumference. Accordingly, the cover chassis 240 may have a shape partially cut away from the boss fixing portion 550.

While the present invention has been described in connection with what is presently considered to be practical and exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

100: display device 200: display module
300: front case 312: first boss
400: rear case 412: second boss
500: boss fixing part 510: coupling part
520: boss insertion member

Claims (31)

A display unit for displaying an image; And
And a cover chassis which covers an edge of the display unit,
Wherein the cover chassis has a rectangular shape in a plan view and a part of the edge is cut so as to expose an outline of the fixed unit and the display unit, And a cut-out portion having a shape embedded from one side of the cut-out portion. The display device according to claim 1, wherein the fixing portion is formed at an edge of the display unit. The display device according to claim 2, wherein the fixing portion includes a boss insertion member in which the coupling hole is formed. The display device according to claim 3, wherein the boss insertion member includes a buffer material. The display device according to claim 4, wherein the boss insertion member is made of rubber. The display device according to claim 1, wherein the fixing portion has a protrusion formed on an inner surface of the coupling hole. The display device according to claim 6, wherein the projecting portion has a hemispherical shape. The display device according to claim 1, wherein the fixing portion is formed on a side of the display unit. delete delete The display apparatus according to claim 1, wherein the cover chassis has a top surface portion extending parallel to an upper surface of the display unit and a side surface portion extending vertically from the top surface portion, the top surface portion and the side surface portion being continuously cut, And the second electrode is formed. delete The display device according to claim 1, wherein the cover chassis having a rectangular shape further comprises a cut-out portion having an edge. The display device according to claim 1, wherein the vertical width of the fixing portion is smaller than the vertical width of the cover chassis. A display unit including a fixing part for displaying an image and having a coupling part formed at an edge thereof;
A cutout portion covering the edge of the display unit and having a rectangular shape in a plan view and having a shape embedded in the edge of the rectangular shape so as to expose an outline of the fixed unit and the display unit Cover chassis; And
And a case coupled to the fixing portion. The display device according to claim 15, wherein the case includes a front case having an opening exposing a display area of the display unit. 17. The display device according to claim 16, wherein the front case includes a first boss inserted into the coupling hole. 18. The display device according to claim 17, wherein the first boss has a tapered shape whose outer diameter decreases as the distance from the front case increases. The display device according to claim 16, wherein the case further comprises a rear case covering the rear surface of the display unit. The display device according to claim 19, wherein the rear case includes a second boss inserted into the coupling hole. The display device according to claim 15, wherein the fixing portion is formed at an edge of the display unit. 22. The display device according to claim 21, wherein the fixing portion includes a boss insertion member having the coupling hole formed therein. 23. The display device according to claim 22, wherein the boss insertion member comprises a buffer material. 24. The display device according to claim 23, wherein the boss insertion member is made of rubber. 16. The display device according to claim 15, wherein the fixing portion has a protrusion formed on an inner surface of the coupling hole. The display device according to claim 25, wherein the projecting portion has a hemispherical shape. delete The display device according to claim 15, wherein the cover chassis has a top surface portion extending parallel to an upper surface of the display unit and a side surface portion extending vertically from the top surface portion, the top surface portion and the side surface portion being continuously cut, And the second electrode is formed. delete 16. The display device according to claim 15, wherein the rectangular shaped cover chassis further comprises a cut-out portion having a corner. The display device according to claim 15, wherein the vertical width of the fixing portion is smaller than the vertical width of the cover chassis.

Images