Display unit and display screen

Abstract

The utility model provides a display unit and a display screen, the display unit comprises a box body and a display module, the box body comprises a mounting frame and mounting beams, and the mounting beams are connected to two opposite side edges of the mounting frame. The display module is connected to the box body and comprises a substrate, a light-emitting element and a drive control element, and the light-emitting element and the drive control element are both installed on the substrate and drive the light-emitting element to be turned on or turned off. The mounting beam comprises a main body part and a heat dissipation plate, the main body part faces the substrate, heat on the substrate can be conducted to the main body part, the main body part is provided with a through heat dissipation channel in the length direction of the mounting beam, and the main body part can dissipate heat through the heat dissipation channel. The heat dissipation plate is located on the side, away from the display module, of the main body part and extends in the direction away from the main body part, so that the heat dissipation plate can dissipate heat on the mounting beam to the space of the side, away from the display module, of the mounting beam, the heat dissipation efficiency of the display module is improved, and the heat is prevented from being gathered on a part of the display module.

Description

TECHNICAL FIELD

[0001] The utility model relates to display technical field, especially display unit and display screen. BACKGROUND

[0002] The existing sound transmission screen is all through the hole to carry out the sound transmission, and the LED lamp pearl is placed between the hole and the hole. The size and the quantity of the sound transmission hole are usually considered when the LED sound transmission screen is designed, and the distribution of the LED drive control element and the distribution of the lamp surface temperature are also considered. And the larger the area of the hole is, the better the sound transmission effect is, but a certain area needs to be left to arrange the LED drive control element.

[0003] However, in the existing sound transmission screen, due to the influence of the sound transmission hole, the arrangement of the LED drive control element is relatively concentrated, which leads to a large amount of heat generated when the screen body works and the heat is concentrated in the area where the LED drive control element is arranged, so that the temperature of the area rapidly rises, causing the phenomenon of blueness, and further affecting the display effect. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of display units, which can improve the heat dissipation effect of display module, reduce the temperature difference of display module as a whole, avoid the phenomenon of blueness.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme:

[0006] According to an aspect of the utility model, the utility model provides a kind of display unit described display unit includes: cabinet, it includes installation frame and mounting beam;The mounting beam two ends are respectively connected on the opposite two sides of the installation frame;Display module is set on the installation frame and the mounting beam;The display module includes substrate, the light-emitting element being arranged in one side of the substrate, and the drive control element being arranged in the other side of the substrate and being electrically connected with the light-emitting element;Wherein, the mounting beam includes main part and heat sink plate;The main part is provided with heat dissipation channel, and the heat dissipation channel is along the length direction of the mounting beam and penetrates the main part;The heat sink plate is located in the side of the main part away from the display module, and the heat sink plate extends from the main part to the direction away from the main part, to be used for heat dissipation.

[0007] In an embodiment of the present application, the mounting beam further includes mounting plate;The mounting plate is protruded and extends from the side of the main part in the width direction to the direction away from the main part;The mounting beam is connected with the substrate by the mounting plate.

[0008] In an embodiment of the present application, the side of the mounting plate facing the display module is provided with heat radiation layer, and the heat radiation layer is used to improve the heat dissipation efficiency of the mounting plate.

[0009] In one embodiment of the present application, the mounting beams are provided with at least one, which is arranged apart from the side of the box along the width direction of the mounting beam, or arranged apart from the adjacent mounting beam along the width direction of the mounting beam.

[0010] In one embodiment of the present application, the box further comprises connecting beams; the connecting beams are provided with a plurality of, and the length direction of the connecting beams extends along the width direction of the mounting beam; one end of the connecting beam is connected to the mounting beam, and the other end is connected to the mounting frame or connected to the adjacent mounting beam.

[0011] In one embodiment of the present application, the connecting beam is hollow, and the connecting beam is provided with a connecting part on both sides in the width direction of the mounting beam; the connecting beam is connected to the substrate through the connecting part.

[0012] In one embodiment of the present application, the side of the connecting part facing the display module is provided with a heat radiation layer, which is used to improve the heat dissipation efficiency of the connecting part.

[0013] In one embodiment of the present application, the box further comprises a reinforcing beam; the length direction of the reinforcing beam extends along the width direction of the mounting beam, the reinforcing beam is connected to the opposite sides of the mounting frame, and is located on the side of the connecting beam away from the display module and is arranged apart from the connecting beam; the side of the reinforcing beam facing the connecting beam is provided with a power module.

[0014] The present application also provides a display screen, which comprises any of the display units, and the display units are provided with a plurality of, and the display units are spliced through the box.

[0015] From the above technical solution, the present application at least has the following advantages and positive effects:

[0016] The utility model discloses a display unit, including box and display module, the box includes installation frame and mounting beam, and mounting beam connects on the opposite two side edges of installation frame. Display module is connected on the box, and display module includes substrate, light emitting element and drive control element, and light emitting element and drive control element all are installed on the substrate, and drive control element is connected light emitting element, to drive light emitting element to open or close. Meanwhile, mounting beam includes main part and heat dissipation plate, and main part faces the substrate and sets up, makes the heat on the substrate can conduct to main part. Main part is provided with the heat dissipation channel of through along the length direction of mounting beam, makes main part can pass through heat dissipation channel and carries out heat dissipation. In addition, heat dissipation plate is located on the side of main part and deviates from display module, and extends to the direction of deviating from main part, makes heat dissipation plate can disperse the heat on mounting beam to the space of mounting beam and deviates from display module side, thereby improves the heat dissipation efficiency of display module, avoids the heat gathering in the local part of display module. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the schematic diagram of the display unit of the utility model embodiment.

[0018] Figure 2 It is Figure 1 Another schematic diagram of the display unit of

[0019] Figure 3 It is Figure 1 Still another schematic diagram of the display unit of

[0020] Figure 4 It is Figure 3 The enlarged view of A of

[0021] Figure 5 It is Figure 1 The schematic diagram of display module of the display unit of

[0022] Figure 6 It is Figure 1 The schematic diagram of the box of the display unit of

[0023] Figure 7 It is Figure 1 The schematic diagram of mounting beam of the display unit of

[0024] Figure 8 It is Figure 1 The cross-sectional view schematic diagram of mounting beam of

[0025] Figure 9 It is Figure 1 The partial schematic diagram of the display unit of

[0026] Figure 10 It is Figure 1 The schematic diagram of connecting beam of the display unit of

[0027] Figure 11 is a temperature distribution map of the display unit of the present application when in operation.

[0028] Figure 12 is a temperature distribution map of the display unit of the present application when in operation.

[0029] Figure 13 is another temperature distribution map of the display unit of the present application when in operation.

[0030] Reference signs are explained as follows:

[0031] 1 - power supply; 2 - board card; 10 - box body; 11 - mounting frame; 12 - mounting beam; 20 - display module; 21 - substrate; 23 - driving element; 25 - connecting column; 30 - connecting beam; 31 - connecting part; 40 - reinforcing beam; 121 - main body part; 122 - mounting plate; 123 - heat dissipation plate; 201 - receiving card; 211 - through hole area; 212 - non sound transmission area; 231 - LED driving IC; 232 - row pipe; 1211 - heat dissipation channel. DETAILED DESCRIPTION

[0032] The typical embodiments embodying the features and advantages of the present application will be described in detail in the following description. It should be understood that the present application can have various changes on different embodiments, which do not deviate from the scope of the present application, and the description and drawings in essence are used for illustration, not for limiting the present application.

[0033] In the description of the present application, it should be understood that in the embodiments shown in the drawings, the indication of direction or position relationship (such as up, down, left, right, front and back, etc.) is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation. When these elements are in the position shown in the drawings, these descriptions are appropriate. If the position of these elements changes, the indication of these directions also changes accordingly.

[0034] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0035] In the existing sound-transparent screen, the arrangement of LED driving elements is concentrated due to the influence of sound-transparent holes, so that a large amount of heat is generated in the screen body during operation and the heat is concentrated in the area where the LED driving elements are arranged, so that the temperature of the area rises rapidly, causing the phenomenon of blueness, thereby affecting the display effect. Therefore, a display unit is proposed to solve the above problems.

[0036] The scheme is further illustrated by the following embodiments:

[0037] Figure 1 is a schematic view of the display unit of the embodiment of the utility model. Figure 2 is Figure 1 another schematic view of the display unit of the embodiment. Figure 3 is Figure 1 still another schematic view of the display unit of the embodiment. Figure 4 is Figure 3 an enlarged view of A of the embodiment. Figure 5 is Figure 1 a schematic view of the display module of the display unit of the embodiment.

[0038] Please refer to Figure 1 , the display screen of the embodiment can include a plurality of display units, and the plurality of display units are spliced through the box body 10, so that the plurality of display units can be spliced into an integral display screen, so that the display screen can meet the display requirements of different scenes.

[0039] Please refer to Figure 2 , Figure 3 and Figure 4 , the display unit of the embodiment can include a box body 10, a display module 20, a power supply 1 and a board card 2.

[0040] Among them, the display module 20 is installed on the box body 10, the power supply 1 and the board card 2 are also installed in the box body 10, and the power supply 1 is electrically connected with the display module 20 through the board card 2, so that the power supply module 1 can provide electric energy for the display module 20. At the same time, the board card 2 is integrated with a receiving module or separately provided with a receiving card 201, and the board card 2 is electrically connected with the display module 20, so that the receiving module or the receiving card 201 on the board card 2 can receive external signals to control the work of the display module 20.

[0041] Please refer to Figure 5 , the display module 20 can include a substrate 21, a light emitting element and a driving element 23.

[0042] Among them, the light emitting element and the driving element 23 are installed on the opposite sides of the substrate 21, the light emitting element is electrically connected with the driving element 23, so that the driving element 23 can control and drive the light emitting element to emit light.

[0043] In the embodiment, the substrate 21 can be provided as a rectangular plate, and the substrate 21 includes a sound-transmitting area 211 and a non-sound-transmitting area 212. The sound-transmitting area 211 is uniformly provided with a plurality of sound-transmitting holes, so as to ensure the sound-transmitting effect of the sound-transmitting screen.

[0044] It should be noted that the aperture, number and spacing of the sound-transmitting holes can be set according to actual requirements, so as to ensure the display effect and sound-transmitting effect of the display module 20. In addition, the sound-transmitting area 211 is located in the middle region of the substrate 21, so as to ensure the appearance of the display module 20 and facilitate the wiring on the display module 20.

[0045] Meanwhile, the light-emitting elements can be provided as LED lamp beads. A plurality of light-emitting elements (not shown in the figure) are arranged in an array on the side of the substrate 21 away from the cabinet 10, so as to form the display surface of the display unit.

[0046] In addition, the driving elements 23 are arranged in the non-sound-transmitting area 212 and include a plurality of LED driving ICs 231 and a plurality of row tubes 232. Specifically, the plurality of LED driving ICs 231 are mounted on the non-sound-transmitting area 212 on both sides of the substrate 21 in the width direction, and the plurality of LED driving ICs 231 are arranged in an array in the length direction of the substrate 21. Meanwhile, the plurality of row tubes 232 are mounted on the non-sound-transmitting area 212 on both sides of the substrate 21 in the length direction, and the plurality of row tubes 232 are arranged in an array in the width direction of the substrate 21.

[0047] Figure 6 is a schematic view of the cabinet of the display unit of Figure 1 Figure 7 is a schematic view of the mounting beam of the display unit of Figure 1 Figure 8 is a sectional view of the mounting beam of the display unit of Figure 1 Figure 9 is a partial view of the display unit of Figure 1 Referring to

[0048] and Figure 2 , the cabinet 10 can include a mounting frame 11 and a mounting beam 12. Figure 6 Among them, the mounting frame 11 can be provided as a rectangular frame, and the mounting beam 12 is connected on the opposite two sides of the mounting frame 11, for mounting the display module 20. Specifically, the display module 20 is connected on the mounting frame 11 and the mounting beam 12, that is, at least one side of the display module 20 is connected on the mounting frame 11, and the other side is connected on the mounting beam 12.

[0049]

[0050] ​​​​In the embodiment, at least one mounting beam 12 can be provided, and the mounting beam 12 is connected to the mounting frame 11 and is arranged in the width direction of the mounting beam 12 and is spaced apart from the side of the cabinet 10, or is arranged in the width direction of the mounting beam 12 and is spaced apart from the adjacent mounting beam 12, that is, a plurality of mounting beams 12 are arranged in the width direction of the mounting beam 12, so that the cabinet 10 can be mounted in the width direction of the cabinet 10.

[0051] It should be noted that the length direction of the display module 20 extends in the width direction of the cabinet 10, so that the side of the display module 20 in the width direction can be lapped on the mounting beam 12 or the mounting frame 11.

[0052] Referring to Figure 4 , Figure 7 and Figure 8 , the mounting beam 12 can include a main body part 121, a mounting plate 122, and a heat dissipation plate 123.

[0053] The mounting plate 122 protrudes and extends from the side of the main body part 121 in the width direction of the main body part 121 to the direction away from the main body part 121, and is used to connect the substrate 21. Specifically, the mounting plate 122 is provided with a threaded hole, and the mounting plate 122 is connected to the connecting column 25 on the substrate 21 by a screw, so that the mounting plate 122 is arranged in the width direction of the main body part 121. The mounting plate 122 is spaced apart from the substrate 21.

[0054] In the embodiment, two mounting plates 122 are provided, and the two mounting plates 122 are respectively connected to the two sides of the main body part 121 in the width direction, so that the two sides of the same mounting beam 12 in the width direction can simultaneously connect two substrates 21.

[0055] It should be noted that the mounting plate 122 is opposite to the LED driving IC 231 and is spaced apart from the LED driving IC 231 to avoid interference of the mounting plate 122 to the LED driving IC 231.

[0056] At the same time, the side of the mounting plate 122 facing the display module 20 is provided with a heat radiation layer, which is preferably a functional coating layer with a certain roughness and excellent heat transfer efficiency, so as to improve the heat dissipation efficiency of the mounting plate 122, so that the heat generated by the control element 23 can be quickly guided to the mounting beam 12.

[0057] The heat dissipation plate 123 is located on the side of the main body part 121 away from the display module 20, and the heat dissipation plate 123 extends from the main body part 121 to the direction away from the main body part 121, so as to dissipate heat.

[0058] In the embodiment, the heat dissipation plates 123 are provided in plurality, and the plurality of heat dissipation plates 123 are arranged at intervals along the width direction of the main body 121 to form a hot air flow channel between two adjacent heat dissipation plates 123, so that the air flow speed in the region is accelerated, and the heat dissipation effect is improved.

[0059] It should be noted that the main body 121 is provided with a heat dissipation channel 1211, and the heat dissipation channel 1211 penetrates the main body 121 along the length direction of the mounting beam 12, so that the heat dissipation channel 1211 can also form a hot air flow channel, and the air flow is accelerated to accelerate the heat dissipation of the mounting beam 12.

[0060] Referring to Figure 9 , the main body 121 is arranged to face the substrate 21. Specifically, the side of the main body 121 facing the substrate 21 abuts against the non-acoustic transparent area 212 of the substrate 21, that is, the side of the main body 121 away from the heat dissipation plate 123 abuts against the edge of the substrate 21 in the width direction. At the same time, the heat dissipation channel 1211 is arranged in parallel with the substrate 21 at intervals, so that the heat on the substrate 21 can be dissipated through the heat dissipation channel 1211.

[0061] In the embodiment, the mounting beam 12 is made of aluminum to improve the heat conduction and heat dissipation efficiency of the mounting beam 12.

[0062] It should be noted that since the drive control elements 23 are respectively located on both sides of the substrate 21 in the width direction, when the plurality of drive control elements 23 are arranged side by side along the width direction thereof, a plurality of drive control elements 23 are gathered on the two sides between the two adjacent substrates 21. The drive control elements 23 generate a large amount of heat when working, thereby causing the temperature on the two adjacent sides between the two substrates 21 to rapidly rise. At the same time, the mounting beam 12 is connected to the two adjacent substrates 21 and is located on the side of the drive control elements 23 away from the substrate 21, thereby blocking the air flow in the space, causing the heat generated by the drive control elements 23 in the space to gather between the substrate 21 and the mounting beam 12, and causing the local temperature to rapidly rise.

[0063] Therefore, the mounting beam 12 is provided with the mounting plate 122 and the heat dissipation plate 123, and the heat dissipation channel 1211 is arranged in the main body 121, and the mounting beam 12 is made of aluminum, so that the mounting beam 12 can quickly guide and dissipate the heat generated by the drive control elements 23 to the space on the side of the mounting beam 12 away from the substrate 21, thereby reducing the temperature in the space between the substrate 21 and the mounting beam 12, and ensuring that the temperature in the region is maintained within a lower temperature range.

[0064] Figure 10 is Figure 1 a schematic view of a connecting beam of a display unit.

[0065] Referring to Figure 4 ,Figure 6 and Figure 10 The cabinet 10 can further comprise a connecting beam 30.

[0066] The length direction of the connecting beam 30 extends along the width direction of the mounting beam 12, and one end of the connecting beam 30 is connected to the mounting beam 12, and the other end is connected to the mounting frame 11 or the adjacent mounting beam 12.

[0067] In the embodiment, a plurality of connecting beams 30 are provided, and the connecting beams 30 can be connected between two adjacent mounting beams 12, or the connecting beams 30 are connected between the mounting frame 11 and the mounting beam 12, so as to enhance the structural strength of the cabinet 10 as a whole.

[0068] It should be noted that the connecting beam 30 is connected to the middle part of the mounting beam 12, and the connecting beam 30 is provided with connecting parts 31 on both sides in the width direction of the connecting beam 30, that is, the connecting beam 30 is provided with connecting parts 31 on the opposite sides in the length direction of the mounting beam 12. The connecting parts 31 are used to connect the substrate 21, so that the connecting beam 30 is connected with two substrates 21 on both sides in the length direction of the mounting beam 12, and the connecting parts 31 are connected on both sides in the length direction of the substrate 21.

[0069] In the embodiment, the connecting parts 31 are opposite to the control elements 24 on the substrate 21, and the connecting parts 31 are connected to the substrate 21 through screws and connecting columns 25, so that the connecting parts 31 are spaced apart from the substrate 21 and the control elements 24.

[0070] The side of the connecting part 31 facing the display module 20 is provided with a heat radiation layer, which is preferably a functional coating layer with a certain roughness and excellent heat transfer efficiency, so as to improve the heat dissipation efficiency of the connecting part 31, so that the heat generated by the control elements 24 can be quickly guided to the connecting beam 30.

[0071] At the same time, the connecting beam 30 is made of aluminum and is hollow, so that the connecting part 31 can guide and dissipate the heat generated by the control elements 24, thereby reducing the temperature of the space between the substrate 21 and the connecting beam 30.

[0072] In addition, in the embodiment, the board card 2 is mounted on the connecting beam 30 and located on the side of the connecting beam 30 away from the display module 20, so as to avoid the influence of the heat generated by the components on the board card 2 on the display module 20.

[0073] Referring to Figure 4 and Figure 6 The cabinet 10 can further comprise a reinforcing beam 40.

[0074] The length direction of the reinforcing beam 40 extends along the width direction of the mounting beam 12, and the reinforcing beam 40 is connected to the opposite sides of the mounting frame 11 to enhance the structural strength of the cabinet 10.

[0075] Meanwhile, the reinforcing beam 40 is located on the side of the connecting beam 30 away from the display module 20 and is spaced apart from the connecting beam 30, so that a space is formed between the reinforcing beam 40 and the connecting beam 30 to avoid interference of the reinforcing beam 40 with the board card 2 and to flow out the heat dissipation space, thereby avoiding the heat generated by the board card 2 from being accumulated in the space between the connecting beam 30 and the reinforcing beam 40.

[0076] In addition, the side of the reinforcing beam 40 facing the connecting beam 30 is used to mount the power module 1, so as to avoid the heat generated by the power module 1 from affecting the display module 20.

[0077] It should be noted that in the embodiment, the mounting frame 11 is also connected to the base plate 21 through the connecting column 25, so that the mounting frame 11 is spaced apart from the base plate 21. Since the drive control element 23 and the control element 24 are located on the side edge of the base plate 21, when the base plate 21 is connected to the mounting frame 11, the mounting frame 11 will also face the drive control element 23 and the control element 24 on the base plate 21. Therefore, the mounting frame 11 is spaced apart from the base plate 21, which can not only avoid interference of the mounting frame 11 with the drive control element 23 and the control element 24, but also dissipate the heat generated by the drive control element 23 and the control element 24, thereby reducing the temperature.

[0078] Of course, in the embodiment, the mounting frame 11 can also be an aluminum frame to improve the heat conduction and heat dissipation effect.

[0079] Figure 11 is a temperature distribution diagram of a conventional display unit when working. Figure 12 is a temperature distribution diagram of the display unit of the present application when working. Figure 13 is another temperature distribution diagram of the display unit of the present application when working.

[0080] As shown in Figure 11 , when working, the heat generated by the conventional display unit is accumulated in the area between the connecting beam and the display module, so that the temperature of this area is higher than that of the middle area of the display module, which is easy to cause the edges of the display module to appear cyan, thereby affecting the display effect.

[0081] As shown in Figure 12 and Figure 13As shown, the display unit of the present application works, since the mounting beam 12 and the connecting beam 30 are both aluminum beams, and the mounting beam 12 is provided with the mounting plate 122 and the heat dissipation plate 123, and the connecting beam 30 is provided with the connecting part 31, thereby improving the heat conduction and heat dissipation efficiency of the mounting beam 12 and the connecting beam 30, thereby dissipating the heat in time, keeping the temperature of the area low, reducing the temperature difference between the area and the middle area of the display module, and avoiding the bluish phenomenon of the edge of the display module.

[0082] In conclusion, the display unit comprises the box body 10 and the display module 20, the box body 10 comprises the mounting frame 11 and the mounting beam 12, the mounting beam 12 is connected on the opposite two side edges of the mounting frame 11. The display module 20 is connected on the box body 10, and the display module 20 comprises the substrate 21, the light emitting element and the driving element 23, the light emitting element and the driving element 23 are both mounted on the substrate 21, and the driving element 23 is electrically connected with the light emitting element to drive the light emitting element to open or close. Meanwhile, the mounting beam 12 comprises the main body part 121, the mounting plate 122 and the heat dissipation plate 123, the main body part 121 is arranged to face the substrate 21, so that the heat on the substrate 21 can be conducted to the main body part 121. The main body part 121 is provided with the heat dissipation channel 1211 penetrating along the length direction of the mounting beam 12, so that the main body part 121 can dissipate heat through the heat dissipation channel 1211. The mounting plate 122 is connected on the side edge of the main body part 121 in the width direction, for connecting the substrate 21, and the mounting plate 122 is opposite to the driving element 23 on the substrate 21 and is arranged to be spaced from the driving element 23, for guiding the heat generated by the driving element 23 when working. The heat dissipation plate 123 is located on the side of the main body part 121 away from the display module 20 and extends away from the main body part 121, so that the heat dissipation plate 123 can dissipate the heat on the mounting beam 12 to the space on the side of the mounting beam 12 away from the display module 20, thereby improving the heat dissipation efficiency of the display module 20 and avoiding the heat gathering in the local part of the display module 20.

[0083] Although the present application has been described with reference to several exemplary embodiments, it is understood that the terms used are illustrative and not restrictive ones. Since the present application can be implemented in numerous ways, the embodiments discussed are not limitative but serve as examples for implementing the present application. Therefore, it is understood that various modifications and alterations might be made by those skilled in the art without departing from the spirit and scope of the present application which should be measured by the appended claims and their equivalents.

Claims

1. A display unit, characterized by The display unit comprises: a box body comprising a mounting frame and a mounting beam, the mounting beam being connected to opposite sides of the mounting frame at both ends; a display module arranged on the mounting frame and the mounting beam, the display module comprising a substrate, light-emitting elements arranged on one side of the substrate, and drive control elements arranged on the other side of the substrate and electrically connected to the light-emitting elements; wherein the mounting beam comprises a main body portion and a heat dissipation plate, the main body portion facing the substrate, a heat dissipation channel being arranged in the main body portion, the heat dissipation channel extending through the main body portion along the length direction of the mounting beam, and the heat dissipation plate being located on the side of the main body portion away from the display module and extending from the main body portion in a direction away from the main body portion for heat dissipation.

2. The display unit of claim 1, wherein, The substrate comprises a sound-transmitting area and a non-sound-transmitting area, the sound-transmitting area being uniformly provided with sound-transmitting holes, and the drive control elements being arranged in the non-sound-transmitting area, the non-sound-transmitting area being arranged in contact with the mounting beam.

3. The display unit of claim 1, wherein, The mounting beam further comprises a mounting plate, the mounting plate being protruded and extended from the side of the main body portion in a direction away from the main body portion, and the mounting beam being connected to the substrate through the mounting plate.

4. The display unit of claim 3, wherein, The side of the mounting plate facing the display module is provided with a heat radiation layer for improving the heat dissipation efficiency of the mounting plate.

5. The display unit of claim 1, wherein, The mounting beam is provided with at least one, the mounting beam being arranged in a direction away from the side of the box body along the width direction of the mounting beam or in a direction away from the adjacent mounting beam along the width direction of the mounting beam.

6. The display unit of claim 5, wherein, The box body further comprises connecting beams, the connecting beams being provided in plurality and extending along the width direction of the mounting beam in the length direction, one end of the connecting beam being connected to the mounting beam and the other end being connected to the mounting frame or the adjacent mounting beam.

7. The display unit of claim 6, wherein, The connecting beam is hollow, and connecting portions are protruded on both sides of the connecting beam in the width direction of the mounting beam, the connecting beam being connected to the substrate through the connecting portions.

8. The display unit of claim 7, wherein, The side of the connecting portion facing the display module is provided with a heat radiation layer for improving the heat dissipation efficiency of the connecting portion.

9. The display unit of claim 6, wherein, The box body further comprises a reinforcing beam, the reinforcing beam extending along the width direction of the mounting beam in the length direction, the reinforcing beam being connected to opposite sides of the mounting frame and located on the side of the connecting beam away from the display module and arranged in a direction away from the connecting beam, and the side of the reinforcing beam facing the connecting beam being provided with a power module.

10. A display screen, characterized by The display unit comprises a plurality of display units as claimed in any one of claims 1-9, and the display units are spliced through the box body.

Images