CN111724700A

CN111724700A - Display screen

Info

Publication number: CN111724700A
Application number: CN202010685846.9A
Authority: CN
Inventors: 汪生和; 杨俊丰; 李振龙; 何东
Original assignee: Liya Wisdom Display Shenzhen Co ltd
Current assignee: Liya Wisdom Display Shenzhen Co ltd
Priority date: 2020-07-16
Filing date: 2020-07-16
Publication date: 2020-09-29

Abstract

The invention relates to a display screen, which comprises a frame, wherein the frame is provided with a mounting surface which is arranged opposite to a support. The light-emitting strips are arranged on one side where the mounting surface is located and detachably connected with the frame, the number of the light-emitting strips is multiple, and the light-emitting strips are arranged at intervals so that a gap exists between every two adjacent light-emitting strips; wherein, the luminous strip can realize the assembly and the dismantlement with the frame on the side that the installation face is located. When the light-emitting strips need to be maintained, the light-emitting strips with faults can be independently unloaded from the frame on the side where the mounting surface is located so as to be convenient for maintenance, so that the blocking effect of the support is eliminated, the frame is still fixed on the support, and the whole display screen is prevented from being unloaded from the support. Meanwhile, the successfully repaired luminous strip can be reinstalled on the frame on the side where the mounting surface is located, so that convenience in display screen maintenance can be improved.

Description

Display screen

Technical Field

The invention relates to the technical field of display screens, in particular to a display screen.

Background

An LED (Light Emitting Diode) display screen is used to display various information such as text, images, and video. The LED display screen integrates an electronic technology, a computer technology and an information processing technology, adopts a modular structure to perform display control, and changes the screen display contents such as characters, animations, pictures or videos by lightening or extinguishing lamp beads. The LED display screen has the advantages of bright color, wide dynamic range, high brightness, long service life, stable and reliable work and the like, thereby being widely applied to commercial media, cultural performance markets, stadiums, information dissemination, news distribution, security trading and the like and meeting the requirements of different environments.

Generally, the display screen includes frame and light-emitting strip, and the frame is fixed in the support in order to realize the installation of display screen, however, to traditional display screen, when needing to maintain the light-emitting strip, need to uninstall whole display screen from the support, because the display screen weight is heavier, leads to influencing the convenience that the light-emitting strip maintained.

Disclosure of Invention

The invention solves the technical problem of how to improve the convenience of the maintenance of the display screen.

A display screen, comprising:

a frame having a mounting surface disposed opposite the support;

the light-emitting strips are arranged on one side where the mounting surface is located and detachably connected with the frame, the number of the light-emitting strips is multiple, and the light-emitting strips are arranged at intervals so that a gap exists between every two adjacent light-emitting strips; wherein, the luminous strip can realize the assembly and the dismantlement with the frame on the side that the installation face is located.

In one embodiment, the lighting device further comprises a bearing piece and a threaded fastener, wherein the bearing piece is used for supporting the lighting strip, the threaded fastener is arranged in the bearing piece in a penetrating mode and is in threaded connection with the frame, and a nut of the threaded fastener is located on one side where the mounting surface is located.

In one embodiment, the bearing component comprises a fixing plate and a guide plate which are connected with each other, a sliding groove is formed in the luminous strip, the fixing plate is fixed on the mounting surface, and the guide plate is in sliding fit with the sliding groove.

In one embodiment, the number of the guide plates is two, the two guide plates are arranged at intervals and are positioned on the same side of the fixing plate, and the light-emitting strip is clamped between the two guide plates.

In one embodiment, the sliding groove includes a first sliding groove, the guide plate includes a connecting portion and a first guiding portion, the connecting portion is disposed on the fixing plate, and the first guiding portion is bent and connected with the connecting portion and is in sliding fit with the first sliding groove.

In one embodiment, the sliding groove further comprises a second sliding groove formed by recessing the side wall of the first sliding groove, and the recessing directions of the first sliding groove and the second sliding groove are intersected to form a set included angle; the guide plate further comprises a second guide part connected with the first guide part in a bending mode, the connecting part and the second guide part are both located on the same side of the first guide part, and the second guide part is in sliding fit with the second sliding groove.

In one embodiment, the light bar includes a support having two end surfaces facing opposite directions, and an end cap, the sliding groove extends along the length direction of the light bar and penetrates through the two end surfaces, and the end cap is detachably connected with the end surfaces and covers the end of the sliding groove.

In one embodiment, the light-emitting strip is further provided with a water drainage hole, and the water drainage hole is communicated with the sliding groove and the outside.

In one embodiment, the light-emitting strip comprises a support, a face mask and a lamp assembly, wherein the support is provided with a containing cavity, the lamp assembly is contained in the containing cavity, the face mask is provided with a through hole, a part of the lamp assembly penetrates through the through hole, and the face mask closes the containing cavity and is connected with the support in a buckling mode.

In one embodiment, a clamping groove is concavely formed on the side wall of the accommodating cavity, a plurality of convex strips are convexly arranged on the side surface of the mask, the convex strips are arranged at intervals along the length direction of the mask, and the convex strips are matched with the clamping groove.

One technical effect of one embodiment of the invention is that: because the luminous strip can realize the assembly and the dismantlement with the frame in the one side that the installation face was located, when needs maintain the luminous strip, can will break down the luminous strip alone from the frame uninstallation so that the maintenance in the one side that the installation face was located to eliminate the barrier effect of support, make the frame still fix on the support, avoid uninstalling whole display screen from the support. Meanwhile, the successfully repaired luminous strip can be reinstalled on the frame on the side where the mounting surface is located, so that convenience in display screen maintenance can be improved.

Drawings

Fig. 1 is a schematic perspective view of a display screen according to an embodiment;

FIG. 2 is a schematic perspective view of the display screen shown in FIG. 1 at another viewing angle;

FIG. 3 is a schematic view of a portion of the display screen shown in FIG. 1 including a light bar and a carrier;

FIG. 4 is an exploded view of FIG. 3;

FIG. 5 is a schematic plan sectional view of the structure of FIG. 3;

FIG. 6 is a schematic perspective view of a support base of the display screen of FIG. 1;

FIG. 7 is a schematic perspective view of a lamp assembly of the display screen of FIG. 1;

fig. 8 is a schematic perspective view of a carrier in the display screen shown in fig. 1.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "inner", "outer", "left", "right" and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Referring to fig. 1 and 2, a display screen 10 according to an embodiment of the present invention includes a frame 100, a light bar 400, a carrier 200, and a threaded fastener 300. The frame 100 includes a first support frame 110 and a second support frame 120, the first support frame 110 and the second support frame 120 are spaced apart from each other along the length of the light bar 400, and both the first support frame 110 and the second support frame 120 can be used to be fixed on a support such as a wall, a glass curtain wall or a pillar, so as to implement the installation of the whole display screen 10. Both the first support frame 110 and the second support frame 120 have the mounting surface 130, the mounting surface 130 is disposed away from the support, and the mounting surface 130 faces the same direction as the light exiting direction of the display screen 10, in short, the mounting surface 130 can be understood as the front surface of the frame 100.

In some embodiments, the light bar 400 is disposed at a side where the mounting surface 130 is located, for example, one end of the light bar 400 is detachably connected to the first support frame 110, while the other end of the light bar 400 is detachably connected to the second support frame 120. The light bar 400 can be assembled with and disassembled from the frame 100 at the side where the mounting surface 130 is located.

Under the condition of installing whole display screen 10 on the wall, if luminous strip 400 can't assemble and dismantle in the one side that installation face 130 is located, when luminous strip 400 broke down and need maintain it, because the effect of blockking of wall, operating personnel can't dismantle luminous strip 400 from frame 100 alone, must first dismantle frame 100 from the support, then realize the dismantlement of whole display screen 10 on the support to individual luminous strip 400 that breaks down maintains, because display screen 10 weight is heavier, lead to influencing the convenience that luminous strip 400 maintained. With the above embodiment, when maintenance of the failed light bar or light bars 400 is required, the frame 100 is still fixed on the support, the entire display screen 10 does not need to be dismounted from the support, the wall-type obstruction is also eliminated, the operator can dismount the failed light bar 400 from the frame 100 for maintenance on the side where the mounting surface 130 is located, and can remount the light bar 400 successfully repaired on the frame 100 on the side where the mounting surface 130 is located. Therefore, the light-emitting strip 400 can be maintained without disassembling the whole display screen 10, thereby greatly improving the convenience of maintaining the display screen 10.

The quantity of light-emitting strip 400 is a plurality of, and the even interval of a plurality of light-emitting strips 400 sets up for there is equal clearance 401 between each two adjacent light-emitting strips 400, forms above-mentioned clearance 401 through the setting, makes light can pierce through between the front side and the rear side of display screen 10 through this clearance 401 on the one hand, thereby improves the light transmission performance of display screen 10, for example, when display screen 10 installs on the glass curtain wall, can make display screen 10 can not influence glass curtain wall's daylighting performance. On the other hand, the air flow can penetrate between the front side and the rear side of the display screen 10 through the gap 401, so that the air flow resistance (such as wind resistance) borne by the display screen 10 is reduced, and the stable reliability of the installation of the display screen 10 is ensured. On the other hand, the heat generated by the light-emitting bars 400 can be quickly discharged from the gaps 401 to the outside, thereby improving the heat dissipation performance of the display panel 10.

Referring to fig. 2, 3 and 4, in some embodiments, the carrier 200 is used for supporting the light-emitting strips 400, the carrier 200 is disposed on each of the first support frame 110 and the second support frame 120, the threaded fasteners 300 are inserted into the carrier 200 and are in threaded connection with the frame 100, and each light-emitting strip 400 can be fixed on the frame 100 through a plurality of carriers 200. When the carrier 200 is fixed to the frame 100, the nut 310 of the threaded fastener 300 is located on the side where the mounting surface 130 is located, so that an operator can remove the obstruction of the support to apply force to the nut 310 on the side where the mounting surface 130 is located, and can tighten or loosen the entire threaded fastener 300, and finally, the installation and the uninstallation of the carrier 200 and the light bar 400 on the frame 100 can be smoothly realized.

Referring to fig. 4, 5 and 8, the carrier 200 includes a fixing plate 210 and a guide plate 220, the fixing plate 210 and the guide plate 220 are connected to each other, a sliding slot 415 is formed on the light bar 400, and the threaded fastener 300 is inserted into the fixing plate 210, so that the fixing plate 210 is directly fixed on the mounting surface 130 of the frame 100. At the same time, guide plate 220 is slidably engaged with slide slot 415 of light bar 400. For example, the number of the guide plates 220 may be two, and the two guide plates 220 are both located on the same side of the fixing plate 210 and are spaced apart from each other on the fixing plate 210; when the light-emitting strip 400 is mounted on the carrier 200, the light-emitting strip 400 is sandwiched between the two guide plates 220, that is, the sandwiching of the two guide plates 220 limits the light-emitting strip 400, and simultaneously, a supporting force is directly applied to the light-emitting strip 400 from two sides of the light-emitting strip 400, so that the light-emitting strip 400 is prevented from falling off the carrier 200, and finally, the light-emitting strip 400 is mounted on the carrier 200.

Referring to fig. 4, 5 and 6, in some embodiments, for example, the sliding groove 415 includes a first sliding groove 415a, and the first sliding groove 415a is formed by recessing an outer side surface of the light emitting bar 400. The guide plate 220 includes a first guide portion 221 and a connection portion 223, one end of the connection portion 223 is fixed to the fixing plate 210, and the connection portion 223 may be perpendicular to the fixing plate 210. The first guide portion 221 is connected to the other end of the connection portion 223 in a bent manner, and the first guide portion 221 may be perpendicular to the connection portion 223. When the light-emitting strip 400 is mounted on the carrier 200, the first guide portion 221 is inserted into the first sliding groove 415a, so that the first guide portion 221 and the first sliding groove 415a are in a sliding fit relationship, and the light-emitting strip 400 mounted on the carrier 200 can also slide relative to the carrier 200. When the light bar 400 slides relative to the carrier 200 fixed on the frame 100, the frame 100 and the carrier 200 move synchronously, so that the frame 100 and the carrier 200 slide relative to the light bar 400 along the length extension direction of the light bar 400, thereby changing the installation position of the frame 100 and the carrier 200 relative to the light bar 400. When the display screen 10 is installed, because the frame 100 is directly fixed on the support, when the frame 100 slides relative to the light-emitting strip 400 and the installation position is changed, the frame 100 can avoid the related obstacles to adapt to different installation conditions, and the applicability of the display screen 10 to various installation conditions is improved.

For another example, the sliding slot 415 may further include a second sliding slot 415b, the second sliding slot 415b is formed by a side wall of the first sliding slot 415a being recessed, recessed directions of the first sliding slot 415a and the second sliding slot 415b may intersect to form an angle, and recessed directions of the first sliding slot 415a and the second sliding slot 415b may intersect to form an angle of ninety degrees. The guide plate 220 may further include a second guide portion 222, the second guide portion 222 is connected to an end of the first guide portion 221 away from the connection portion 223 in a bending manner, the first guide portion 221 and the second guide portion 222 may be perpendicular to each other, and the connection portion 223 and the second guide portion 222 may be located on the same side of the first guide portion 221, such that the guide plate 220 is substantially C-shaped. Of course, both the connecting portion 223 and the second guide portion 222 may also be located on opposite sides of the first guide portion 221 such that the guide plate 220 is substantially zigzag-shaped. After the first guide portion 221 is slidably engaged with the first sliding groove 415a, the second guide portion 222 is slidably engaged with the second sliding groove 415b, and the first sliding groove 415a and the second sliding groove 415b are provided, so that the vibration and interference resistance generated during the sliding process of the carrier 200 relative to the light-emitting strip 400 can be further eliminated, and the stability of the carrier 200 relative to the light-emitting strip 400 in sliding can be further improved.

Referring to fig. 3, 4 and 7, in some embodiments, the light bar 400 includes a support 410, a face cover 420, a lamp assembly 430 and an end cover 440, a receiving cavity 411 is formed in the support 410, the lamp assembly 430 includes a circuit board 431, a lamp bead 432 and a control element 433, the lamp bead 432 is also an LED lamp bead, the cross-sectional shape of the lamp bead 432 may be rectangular or square, and the like, and of course, the cross-sectional shape of the lamp bead 432 may also be circular. The circuit board 431 includes oppositely facing first and

second surfaces

431a and 431b, the first surface 431a being disposed toward the face mask 420 and the second surface 431b being disposed away from the face mask 420. The lamp beads 432 are arranged on the first surface 431a at intervals, the control element 433 is arranged on the second surface 431b, and the control element 433 is electrically connected with the lamp beads 432 to control the light emission of the lamp beads 432. The mask 420 is formed with a through hole 421, the through hole 421 penetrates through two opposite surfaces of the mask 420 in the thickness direction, and the mask 420 is connected with the support 410 and covers the opening 411a of the receiving cavity 411. When the circuit board 431 is accommodated in the accommodating cavity 411, the lamp beads 432 penetrate through the through holes 421 of the face mask 420. The maximum width dimension a of the circuit board 431 is smaller than the minimum width dimension a of the receiving cavity 411, which enables the circuit board 431 to be taken out of the opening 411a or put into the receiving cavity 411.

The receiving cavity 411 may be a rectangular receiving cavity 411, and the receiving cavity 411 penetrates three surfaces of the holder 410 to form three openings, one of the three openings is formed by the receiving cavity 411 penetrating an end surface (front surface) of the holder 410 in the thickness direction, and the opening is the opening 411 a. The other two openings 411b are formed by the housing cavity 411 penetrating both end surfaces 416 (side surfaces) in the length direction of the holder 410. If the entire housing cavity 411 is provided as a first portion and a second portion communicating with each other, the first portion includes the above-mentioned opening 411a, and the width dimension of the first portion is smaller than the width dimension of the circuit board 431; meanwhile, the second portion is disposed apart from the opening 411a, and the width dimension of the second portion is greater than that of the circuit board 431. During the assembly of the lamp assembly 430 to the holder 410, since the width dimension of the circuit board 431 with respect to the first portion is large, the circuit board 431 cannot be taken out of or put into the receiving cavity 411 from the above-mentioned opening 411a, that is, the circuit board 431 cannot move in the thickness direction of the holder 410 to be taken out of or put into the receiving cavity 411 from the front surface of the holder 410; at this time, although the width of the circuit board 431 is smaller than that of the second portion, the circuit board 431 cannot pass through the first portion from the opening 411a and then be received in the second portion, so that the circuit board 431 can only be inserted into the second portion of the receiving cavity 411 from the other two openings 411b, i.e., the circuit board 431 can only move in the length direction of the cradle 410 to be taken out from the side of the cradle 410 or put into the receiving cavity 411. When the circuit board 431 is taken and placed from the side face of the support 410, because the length of the circuit board 431 is long and relatively flexible, the circuit board 431 can be gradually inserted into the second part of the accommodating cavity 411 only by debugging for a long time, namely, all parts of the whole circuit board 431 successively enter the accommodating cavity 411, so that the assembly efficiency of the lamp assembly 430 is undoubtedly affected, meanwhile, more collisions exist between the circuit board 431 and the support 410 in the assembling process, and the risk of damage to the circuit board 431 and the lamp beads 432 is also existed.

As for the above embodiment, since the minimum width a of the receiving cavity 411 is greater than the maximum width a of the circuit board 431, the entire lamp assembly 430 can directly enter the receiving cavity 411 from the opening 411a (corresponding to the front surface of the support 410) at the same time, thereby avoiding the situation that the receiving cavity 411 is inserted from the side surface of the support 410 in sequence, on one hand, the assembly efficiency of the lamp assembly 430 is improved, on the other hand, the collision and abrasion between the lamp assembly 430 and the support 410 are reduced, and the lamp assembly 430 is prevented from being damaged in the assembly process.

Referring to fig. 5 and 6, the support 410 has a supporting surface 414, the supporting surface 414 defines a portion of the boundary of the receiving cavity 411, and the supporting surface 414 can be simply understood as a bottom wall surface of the receiving cavity 411. When the lamp assembly 430 is received in the receiving cavity 411, the control element 433 is supported on the supporting surface 414, for example, a surface of the control element 433 is directly attached to the supporting surface 414. The support 410 may be made of an aluminum alloy material, so that the support 410 has a good thermal conductivity, and since the control element 433 is directly in contact with the supporting surface 414 of the support 410, the heat generated by the control element 433 may be directly transmitted to the outside through the support 410, i.e., the support 410 may be directly used as a heat sink for the control element 433. In some embodiments, the supporting surface 414 may further have a sinking groove 412, and the width of the sinking groove 412 is smaller than the width of the control element 433, so that the control element 433 spans the sinking groove 412, and two ends of the control element 433 may be directly attached to the supporting surface 414. The sink 412 may suitably reduce the weight of the entire support 410.

Two side walls of the accommodating cavity 411 are concavely provided with clamping grooves 413, the side surface of the face mask 420 is convexly provided with convex strips 422, the number of the convex strips 422 can be multiple, and the convex strips 422 are arranged at intervals along the length direction of the face mask 420. When the face mask 420 and the support 410 are installed, the protruding strips 422 are matched with the clamping grooves 413, so that the face mask 420 and the support 410 form a clamping connection relationship, screws for connecting the support 410 and the face mask 420 are eliminated, namely, the connection between the face mask 420 and the support 410 is realized without screws, and the assembly efficiency of the face mask 420 and the support 410 is improved. The face mask 420 further has an outer surface facing away from the circuit board 431 and located outside the receiving cavity 411, a plurality of grooves 423 are concavely formed on the outer surface, the grooves 423 extend along the width direction of the face mask 420, and the grooves 423 are spaced along the length direction of the face mask 420. By providing the grooves 423, the surface area of the mask 420 can be increased, thereby improving the heat dissipation performance of the mask 420.

Referring to fig. 3 and 4, the sliding grooves 415 are disposed on two outer lateral surfaces in a width direction of the holder 410, the sliding grooves 415 extend in a length direction of the holder 410 and penetrate two end surfaces 416 in the length direction of the holder 410, the number of the end caps 440 is two, the two end caps 440 are respectively connected to the two end surfaces 416, and the end caps 440 can cover the end portions of the sliding grooves 415 and the openings 411b of the receiving cavities 411. The end cap 440 is detachably connected to the support 410, for example, the end cap 440 may be fixed to the support 410 by a bolt, and the side wall of the sinking groove 412 may be provided with an internal thread, so that when the bolt is inserted into the end cap 440 and engaged with the internal thread in the sinking groove 412, the support 410 and the end cap 440 may be connected. The end cover 440 may further have a water discharge hole 441, and the water discharge hole 441 is communicated with the outside and the sliding groove 415. The drainage hole 441 can be used for draining accumulated water in the sliding groove 415, so as to prevent the accumulated water staying in the sliding groove 415 for a long time from entering the accommodating cavity 411 and prevent the accumulated water from corroding the support 410 and the lamp assembly 430.

When the light bar 400 is disassembled, there may be two disassembling methods, the first is to directly unscrew the screw fastener 300 and unload the carrier 200 from the frame 100, thereby disassembling the light bar 400 from the frame 100 separately for maintenance, and the main characteristic of the disassembling method is that the light bar 400 is unloaded from the frame 100 simultaneously with the carrier 200. Secondly, the threaded fastener 300 is not loosened, so that the carrier 200 is still fixed on the frame 100, at this time, the end cap 440 at one end of the support 410 can be firstly unloaded from the support 410, so that the end cap 440 can remove the covering effect on the end of the sliding slot 415, and then the whole light-emitting strip 400 is dragged to move relative to the carrier 200, when the carrier 200 is completely slid out from the end of the sliding slot 415, so that the light-emitting strip 400 is not restrained by the carrier 200, and the light-emitting strip 400 is ensured to be smoothly detached from the carrier 200 and the frame 100. The main feature of this detachment is that the carrier 200 remains fixed to the frame 100, so that the light bar 400 is unloaded separately from the frame 100.

According to the different installation environments of the display screen 10, a plurality of disassembling manners may be adopted for the light bar 400, for example, when the installation environment of the display screen 10 is relatively loose and no obstacle exists around the display screen 10, at this time, the first disassembling manner or the second disassembling manner may be adopted. For another example, when there is an obstacle around the display screen 10, when the second detachment mode is adopted, all the carriers 200 for mounting the light bar 400 cannot slide off the light bar 400 from the end of the sliding slot 415 due to the obstacle blocking the light bar 400, so that the light bar 400 cannot be effectively detached, and at this time, the light bar 400 can be detached only by the first detachment mode.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A display screen, comprising:

a frame having a mounting surface disposed opposite the support;

2. The display screen of claim 1, further comprising a bearing member and a threaded fastener, wherein the bearing member is used for supporting the light-emitting strip, the threaded fastener is arranged in the bearing member in a penetrating manner and is in threaded connection with the frame, and a nut of the threaded fastener is located on one side where the mounting surface is located.

3. The display screen of claim 2, wherein the carrier comprises a fixing plate and a guiding plate connected to each other, the light bar has a sliding slot, the fixing plate is fixed on the mounting surface, and the guiding plate is slidably engaged with the sliding slot.

4. The display screen of claim 3, wherein the number of the guide plates is two, the two guide plates are spaced apart and located on the same side of the fixing plate, and the light-emitting strip is sandwiched between the two guide plates.

5. The display screen of claim 3, wherein the sliding slot comprises a first sliding slot, the guide plate comprises a connecting portion and a first guiding portion, the connecting portion is disposed on the fixing plate, and the first guiding portion is connected with the connecting portion in a bending manner and is in sliding fit with the first sliding slot.

6. The display screen of claim 5, wherein the sliding groove further comprises a second sliding groove formed by recessing a side wall of the first sliding groove, and the recessed directions of the first sliding groove and the second sliding groove intersect to form a set included angle; the guide plate further comprises a second guide part connected with the first guide part in a bending mode, the connecting part and the second guide part are both located on the same side of the first guide part, and the second guide part is in sliding fit with the second sliding groove.

7. A display screen as recited in claim 3, wherein the light bar includes a support having oppositely facing end surfaces and an end cap, the channel extending along the length of the light bar and extending through both of the end surfaces, the end cap being removably attached to the end surfaces and covering the ends of the channel.

8. The display screen of claim 3, wherein the light bar further defines a drainage hole, and the drainage hole is connected to the chute and the outside.

9. The display screen of claim 1, wherein the light bar comprises a support, a mask and a lamp assembly, the support is provided with a receiving cavity, the lamp assembly is received in the receiving cavity, the mask is provided with a through hole, a part of the lamp assembly penetrates through the through hole, and the mask closes the receiving cavity and is connected with the support in a buckling manner.

10. The display screen of claim 9, wherein a slot is concavely formed on a side wall of the accommodating cavity, a plurality of convex strips are convexly arranged on a side surface of the mask, the convex strips are arranged at intervals along the length direction of the mask, and the convex strips are matched with the slot.