Dimming assembly and LED display device

Abstract

The utility model provides a dimming assembly and an LED display device, the dimming assembly is arranged on the front side of a lamp panel, and the dimming assembly comprises a support arranged on the front side of the lamp panel; the light passing plate is movably arranged on the support, and a light passing hole is formed in the light passing plate; the driving part is arranged on the lamp panel and drives the light passing plate to move, so that light rays emitted by the lamp beads of the lamp panel can penetrate through the light passing holes to be adjusted; and the guide structure is arranged between the bracket and the light passing plate and can guide the light passing plate. According to the technical scheme, the problem that different pieces of picture information cannot be displayed at the same time from multiple angles in the prior art is effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to LED display technical field, specifically, relate to a light -adjusting assembly and LED display device. BACKGROUND

[0002] The LED display device includes a lamp panel, the lamp panel includes a PCB board and a plurality of lamp beads arranged on the front side of the PCB board.

[0003] The picture content displayed by the LED display device in the related art is fixed, and the displayed picture cannot be dynamically adjusted according to the change of the viewing angle, so there is obvious limitation in the viewing angle adaptability. UTILITY MODEL CONTENT

[0004] The main purpose of the utility model is to provide a light -adjusting assembly and LED display device, to solve the problem of the related art that different picture information cannot be displayed simultaneously from multiple angles.

[0005] In order to realize the above-mentioned purpose, according to one aspect of the utility model, a light -adjusting assembly is provided, which is arranged on the front side of the lamp panel, and the light -adjusting assembly comprises: a support arranged on the front side of the lamp panel; a light passing plate movably arranged on the support, the light passing plate is provided with a light passing hole; a driving part arranged on the lamp panel, the driving part drives the light passing plate to move, so that the light emitted by the lamp beads of the lamp panel can be adjusted through the light passing hole; a guide structure arranged between the support and the light passing plate, the guide structure can guide the light passing plate.

[0006] Further, the driving part is arranged on the rear side of the lamp panel, the light -adjusting assembly further comprises a swing part swingably arranged on the lamp panel and a transmission part arranged on the light passing plate, the swing part and the transmission part are in transmission cooperation, the driving part drives the swing part to swing to drive the light passing plate to move through the transmission part.

[0007] Further, the swing part is provided with a driving gap, the transmission part comprises a transmission rod movably arranged in the driving gap and a connecting plate connected between the transmission rod and the light passing plate; when the swing part swings, the side wall of the driving gap and the transmission rod abut to drive the transmission rod to move.

[0008] Further, the connecting plate is two spaced apart, the transmission rod is connected between the two connecting plates, and the swing part is located between the two connecting plates.

[0009] Further, the driving part comprises a driving motor, a transmission shaft and a seat body, the driving motor and the transmission shaft are in transmission connection, the transmission shaft is rotatably arranged in the seat body, the swing part is connected to the transmission shaft and is in rotation-stopping cooperation with the transmission shaft.

[0010] Further, the guide structure comprises a guide rod and a clamping piece in guide cooperation with the guide rod, the clamping piece is movably clamped on the guide rod, one of the guide rod and the clamping piece is arranged on the bracket, and the other of the guide rod and the clamping piece is arranged on the light passing plate.

[0011] Further, the clamping piece comprises a first clamping arm, a first clamping block, a second clamping arm and a second clamping block, the first clamping block is arranged on the first clamping arm, the second clamping block is arranged on the second clamping arm, the guide rod is located between the first clamping arm and the second clamping arm, the first clamping block and the second clamping block are oppositely arranged, the first clamping block is in stop cooperation with the guide rod, and the second clamping block is in stop cooperation with the guide rod.

[0012] Further, a first guide inclined surface is arranged on a surface of the first clamping block facing the second clamping block, the guide rod is in guide cooperation with the first guide inclined surface when the guide rod is inserted between the first clamping arm and the second clamping arm, and / or a second guide inclined surface is arranged on a surface of the second clamping block facing the first clamping block, the guide rod is in guide cooperation with the second guide inclined surface when the guide rod is inserted between the first clamping arm and the second clamping arm.

[0013] Further, the bracket comprises a plurality of baffle plates arranged at intervals, the plurality of baffle plates are arranged on the front side of the lamp plate to separate the lamp plate into a plurality of display areas, and / or the light passing hole is a long strip hole, the long strip hole penetrates through the front surface of the light passing plate and the rear surface of the light passing plate, and the long strip hole gradually shrinks in the direction from the rear side of the lamp plate to the front side of the lamp plate.

[0014] According to another aspect of the present application, an LED display device is provided, comprising a lamp plate and a light adjusting assembly arranged on the front side of the lamp plate, and the light adjusting assembly is the light adjusting assembly described above.

[0015] The technical scheme of the utility model discloses that the light adjusting assembly is arranged on the front side of the lamp panel.The light adjusting assembly comprises a support, a light passing plate, a driving piece and a guide structure.The support is arranged on the front side of the lamp panel.The light passing plate is movably arranged on the support, and a light passing gap is formed between the light passing plate and the front surface of the lamp panel, and the light passing plate is provided with a light passing hole.The driving piece is arranged on the lamp panel.The driving piece drives the light passing plate to move, so that the light emitted by the lamp beads of the lamp panel can be adjusted through the light passing hole.The guide structure is arranged between the support and the light passing plate, and the guide structure can guide the movement of the light passing plate.The support is arranged to facilitate the installation of the light passing plate.In this way, the viewer can see the light emitted by the lamp beads through the light passing hole of the light passing plate.Moreover, when the angle between the line of sight of the viewer and the light passing hole changes, the viewer can see the light emitted by different lamp beads, so that when the viewing angle of the viewer changes, the viewer can see different picture information through the light passing hole.The light passing gap is arranged to facilitate the viewer to see the light emitted by different lamp beads when the angle changes, thereby increasing the picture information that can be displayed.The light passing plate is movably arranged on the support, so that the relative position of the light passing hole and the lamp panel can be adjusted when the light passing plate moves, thereby further enriching the picture information that can be displayed.The movable arrangement of the light passing plate enables the light adjusting assembly to adjust the position of the light passing plate according to the need of the viewing angle, so as to adjust different picture information, thereby improving the viewing angle adaptability of the LED display device.The arrangement of the driving piece makes the movement of the light passing plate more convenient.The arrangement of the guide structure makes the movement of the light passing plate more stable and reliable, and the light passing plate can move along the preset direction.Therefore, the technical scheme of the utility model effectively solves the problem that different picture information cannot be displayed simultaneously from multiple angles in the related art. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings accompanying the specification of the present application form a part thereof, serve to provide further understanding of the present application, and together with the description of the present application, serve to explain the present application. In the drawings:

[0017] Figure 1 Partially exploded structural schematic diagram of an embodiment of the LED display device according to the utility model is shown;

[0018] Figure 2 Partially exploded structural schematic diagram of an embodiment of the LED display device according to the utility model is shown; Figure 1 Partially exploded structural schematic diagram of an embodiment of the LED display device according to the utility model is shown;

[0019] Figure 3 Partially exploded structural schematic diagram of an embodiment of the LED display device according to the utility model is shown; Figure 2 Partially exploded structural schematic diagram of an embodiment of the LED display device according to the utility model is shown;

[0020] Figure 4 Partially exploded structural schematic diagram of an embodiment of the LED display device according to the utility model is shown;

[0021] Figure 5A perspective structure schematic view at a swing piece of the LED display device is shown.

[0022] Figure 6 A perspective structure schematic view at a guide structure of the LED display device is shown.

[0023] Wherein, the above figures include the following reference signs:

[0024] 10, lamp plate; 11, lamp bead;

[0025] 20, support; 21, baffle;

[0026] 30, light passing plate; 31, light passing hole;

[0027] 41, driving motor; 42, transmission shaft; 43, seat body;

[0028] 51, guide rod; 521, first clamping arm; 522, first clamping block; 523, first guide inclined surface; 524, second clamping arm; 525, second clamping block; 526, second guide inclined surface;

[0029] 60, swing piece; 61, driving gap;

[0030] 70, transmission piece; 71, transmission rod; 72, connecting plate. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] In the present embodiment, as shown in the drawings, Figures 1 to 3 The light adjusting assembly includes a support 20, a light passing plate 30, a driving piece and a guide structure. The support 20 is arranged at the front side of the lamp plate 10. The light passing plate 30 is movably arranged on the support 20, and has a light passing gap between the front surface of the lamp plate 10 and the light passing plate 30, and the light passing plate 30 is provided with a light passing hole 31. The driving piece is arranged on the lamp plate 10. The driving piece drives the light passing plate 30 to move, so that the light emitted by the lamp bead 11 of the lamp plate 10 can be adjusted through the light passing hole 31. The guide structure is arranged between the support 20 and the light passing plate 30, and can guide the movement of the light passing plate 30.

[0033] The bracket 20 is arranged to facilitate the installation of the light passing plate 30. In this way, the viewer can see the light emitted by the plurality of lamp beads 11 through the light passing holes 31 on the light passing plate 30. Moreover, the angle between the line of sight of the viewer and the light passing holes 31 changes, and the viewer can see the light emitted by different lamp beads 11, so that the viewer can see different picture information through the light passing holes 31 when the viewing angle of the viewer changes. The arrangement of the light passing gaps facilitates the viewer to see the light emitted by different lamp beads 11 when the viewing angle changes, thereby increasing the picture information that can be displayed. The light passing plate 30 is movably arranged on the bracket 20, so that the relative position of the light passing holes 31 and the lamp panel 10 can be adjusted when the light passing plate 30 moves, thereby further enriching the picture information that can be displayed. The movable arrangement of the light passing plate 30 enables the light adjusting assembly to adjust the position of the light passing plate 30 according to the needs of the viewing angle, so as to adjust different picture information, thereby improving the viewing angle adaptability of the LED display device. The arrangement of the driving member facilitates the movement of the light passing plate 30. The arrangement of the guide structure facilitates the stable and reliable movement of the light passing plate 30, and the light passing plate 30 can move along the preset direction. Therefore, the technical scheme of the embodiment effectively solves the problem in the related art that different picture information cannot be displayed simultaneously from multiple angles.

[0034] In the embodiment, the lamp panel 10 includes a PCB plate and the lamp beads 11 arranged on one side of the PCB plate. The side of the PCB plate on which the lamp beads 11 are arranged is the front side.

[0035] As shown in Figures 1 to 5 The driving member is arranged on the rear side of the lamp panel 10. The light adjusting assembly further includes a swing member 60 swingably arranged on the lamp panel 10 and a transmission member 70 arranged on the light passing plate 30. The swing member 60 and the transmission member 70 are in transmission cooperation. The driving member drives the swing member 60 to swing to drive the light passing plate 30 to move through the transmission member 70. The swing member 60 and the transmission member 70 have simple structures and reliable transmission. The arrangement of the driving member on the rear side of the lamp panel 10 not only avoids the shielding of the light emitted by the lamp beads 11 by the driving member, thereby improving the display effect, but also realizes the movement of the light passing plate 30 through the transmission cooperation of the swing member 60 and the transmission member 70.

[0036] In the embodiment, the lamp panel 10 is provided with an avoiding hole for avoiding the swing of the swing member 60.

[0037] As shown in Figures 1 to 5As shown, the swing member 60 is provided with a driving gap 61, the transmission member 70 includes a transmission rod 71 movably arranged in the driving gap 61 and a connecting plate 72 connected between the transmission rod 71 and the light passing plate 30. When the swing member 60 swings, the side wall of the driving gap 61 abuts against the transmission rod 71 to drive the transmission rod 71 to move. The swing member 60 is provided with the driving gap 61, which facilitates the transmission cooperation between the swing member 60 and the transmission rod 71, and the movement of the light passing plate 30 can be driven more conveniently. When the swing member 60 swings, the side wall of the driving gap 61 abuts against the transmission rod 71, which realizes the transmission of driving force and facilitates the movement of the light passing plate 30 through the transmission rod 71 and the connecting plate 72.

[0038] As shown in the figure, Figures 1 to 5 The connecting plate 72 is arranged in two, the transmission rod 71 is connected between the two connecting plates 72, and the swing member 60 is located between the two connecting plates 72. The two spaced connecting plates 72 are connected with the transmission rod 71, and the swing member 60 is arranged between the two spaced connecting plates 72. This design not only enhances the connection stability between the light passing plate 30 and the transmission member 70, but also limits the relative movement between the swing member 60 and the transmission rod 71, so that the transmission cooperation between the swing member 60 and the transmission rod 71 is more reliable.

[0039] As shown in the figure, Figures 1 to 5 The driving member includes a driving motor 41, a transmission shaft 42 and a seat body 43. The driving motor 41 is in transmission connection with the transmission shaft 42, the transmission shaft 42 is rotatably arranged in the seat body 43, and the swing member 60 is connected to the transmission shaft 42 and in rotational stop cooperation with the transmission shaft 42. The seat body 43 facilitates the rotatable arrangement of the transmission shaft 42. The swing member 60 is in rotational stop cooperation with the transmission shaft 42, so that the transmission shaft 42 can better drive the swing member 60 to swing when the transmission shaft 42 rotates. The above arrangement forms an efficient and stable power transmission system, which ensures that the power output by the driving motor 41 can be effectively transmitted to the swing member 60.

[0040] In this embodiment, the light adjusting assembly further includes a controller, which is in control connection with the driving motor 41. The driving motor 41 is a micro servo motor.

[0041] As shown in the figure, Figures 1 to 6 The guide structure includes a guide rod 51 and a clamping member in guide cooperation with the guide rod 51, and the clamping member is movably clamped on the guide rod 51. The guide rod 51 is arranged on the bracket 20, and the clamping member is arranged on the light passing plate 30. The guide cooperation between the guide rod 51 and the clamping member ensures that the light passing plate 30 can move smoothly along the preset direction. Moreover, the guide rod 51 and the clamping member have simple structure and reliable guide.

[0042] In other embodiments, the clamping member is arranged on the bracket 20, and the guide rod 51 is arranged on the light passing plate 30.

[0043] As shown in Figures 1 to 6 The clamping piece includes a first clamping arm 521, a first clamping block 522, a second clamping arm 524, and a second clamping block 525. The first clamping block 522 is arranged on the first clamping arm 521, and the second clamping block 525 is arranged on the second clamping arm 524. The guide rod 51 is located between the first clamping arm 521 and the second clamping arm 524. The first clamping block 522 and the second clamping block 525 are oppositely arranged, the first clamping block 522 is in abutting cooperation with the guide rod 51, and the second clamping block 525 is in abutting cooperation with the guide rod 51. The structure of the clamping piece is simple, and the relative movement and guidance between the guide rod 51 and the clamping piece are facilitated. The arrangement of the first clamping block 522 and the second clamping block 525 can be in abutting cooperation with the guide rod 51, so that the guidance cooperation between the guide rod 51 and the clamping piece is more reliable, the possibility of disengagement between the guide rod 51 and the clamping piece is reduced, the stability of the light passing plate 30 during movement is improved, and the deviation or shaking of the light passing plate 30 caused by external force is prevented.

[0044] As shown in Figures 1 to 6 The surface of the first clamping block 522 facing the second clamping block 525 is provided with a first guide inclined surface 523, and when the guide rod 51 is inserted between the first clamping arm 521 and the second clamping arm 524, the guide rod 51 is in guidance cooperation with the first guide inclined surface 523. The surface of the second clamping block 525 facing the first clamping block 522 is provided with a second guide inclined surface 526, and when the guide rod 51 is inserted between the first clamping arm 521 and the second clamping arm 524, the guide rod 51 is in guidance cooperation with the second guide inclined surface 526. The arrangement of the first guide inclined surface 523 and the second guide inclined surface 526 makes the assembly process of the guide rod 51 and the clamping piece more smooth, facilitates the guide rod 51 to enter between the first clamping arm 521 and the second clamping arm 524 more conveniently, reduces the resistance and wear in the assembly process, and improves the assembly efficiency. In other embodiments, the surface of the first clamping block 522 facing the second clamping block 525 is provided with a first guide inclined surface 523, and when the guide rod 51 is inserted between the first clamping arm 521 and the second clamping arm 524, the guide rod 51 is in guidance cooperation with the first guide inclined surface 523. Alternatively, the surface of the second clamping block 525 facing the first clamping block 522 is provided with a second guide inclined surface 526, and when the guide rod 51 is inserted between the first clamping arm 521 and the second clamping arm 524, the guide rod 51 is in guidance cooperation with the second guide inclined surface 526.

[0045] As shown in Figures 1 to 6As shown, the support 20 comprises a plurality of baffles 21 arranged at intervals, which are arranged on the front side of the lamp panel 10 to separate the lamp panel 10 into a plurality of display areas. The arrangement of the baffles 21 can block the light between the plurality of display areas to prevent light leakage between different display areas, and the display area formed between two adjacent baffles 21 can also form a channel for light transmission, and the arrangement of the baffles 21 can further improve the display effect. The light transmission hole 31 is a long hole that penetrates the front surface of the light transmission plate 30 and the rear surface of the light transmission plate 30, and the long hole gradually shrinks in the direction from the rear side of the lamp panel 10 to the front side of the lamp panel 10. The light transmission hole 31 is designed as a long hole, so that each light transmission hole 31 can display the light emitted by a plurality of lamp beads 11 to improve the display effect of each light transmission hole 31. The long hole gradually shrinks in the direction from the rear side of the lamp panel 10 to the front side of the lamp panel 10, which can effectively concentrate the light and better transmit the light when the angle between the viewer's line of sight and the light transmission hole 31 changes, further improving the display effect of each light transmission hole 31.

[0046] In this embodiment, the long hole is a plurality of long holes arranged at intervals in the vertical direction, and the plurality of long holes extend in the horizontal direction. Each display area corresponds to a long hole, and a single display picture can be seen in one viewing angle in one long hole, without scene mixing. When the viewer views the plurality of long holes, a plurality of display pictures in the plurality of long holes can be seen in one viewing angle to see the shooting point images of the plurality of display areas and restore the real image space.

[0047] In this embodiment, the plurality of baffles 21 are arranged at intervals in the vertical direction, and the guide rod 51 extends in the vertical direction. The guide rod 51 is connected to the plurality of baffles 21. Each display area includes a plurality of rows of lamp beads 11, and each row of lamp beads 11 is controlled by a driving chip to display different images, and different content display images can be seen in different viewing angles through the light transmission hole.

[0048] In other embodiments, the support 20 comprises a plurality of baffles 21 arranged at intervals, which are arranged on the front side of the lamp panel 10 to separate the lamp panel 10 into a plurality of display areas. Alternatively, the light transmission hole 31 is a long hole that penetrates the front surface of the light transmission plate 30 and the rear surface of the light transmission plate 30, and the long hole gradually shrinks in the direction from the rear side of the lamp panel 10 to the front side of the lamp panel 10.

[0049] The application also provides an LED display device, which comprises a lamp panel 10 and a light adjusting assembly arranged on the front side of the lamp panel 10, and the light adjusting assembly is the light adjusting assembly described above. Figures 1 to 3 As shown, the LED display device comprises a lamp panel 10 and a light adjusting assembly arranged on the front side of the lamp panel 10, and the light adjusting assembly is the light adjusting assembly described above. The light adjusting assembly described above can solve the problem that different picture information cannot be displayed simultaneously from multiple angles in the related art, so that the LED display device with the light adjusting assembly can solve the same technical problem.

[0050] In the embodiment, the LED display device comprises a plurality of lamp panels 10 and a plurality of light adjusting assemblies arranged on the front side of the lamp panels 10, and the plurality of lamp panels 10 and the plurality of light adjusting assemblies are one-to-one corresponding. The plurality of lamp panels 10 and the plurality of light adjusting assemblies are spliced into a plane to form a plane display device, and the plurality of lamp panels 10 and the plurality of light adjusting assemblies are spliced into a curved surface to form a curved surface display device.

[0051] In the description of the utility model, it needs to be understood that the orientation words such as '' front, back, top, bottom, left, right '' '' horizontal, vertical, perpendicular, horizontal '' and '' top, bottom '' and the like indicated orientation or position relation generally is based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, under the condition of not making opposite statement, these orientation words do not indicate and imply the orientation or position of the indicated device or element must have a particular or with a particular orientation construction and operation, therefore can not be understood as the restriction of the protection scope of the utility model, the orientation words '' inside, outside '' refer to the inside and outside relative to the contour of each component.

[0052] In addition, it needs to be explained that the word '' first, second '' and the like are used to limit the parts, only for the convenience of distinguishing the corresponding parts, like not declaring above-mentioned word has special meaning, therefore can not be understood as the restriction of the protection scope of the utility model.

[0053] The above only describes the preferred embodiment of the utility model, and does not limit the utility model, and the utility model can be changed and varied for the person skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A light adjusting assembly provided at the front side of a light panel (10), characterized in that, The light adjusting assembly comprises: a support (20) arranged on the front side of the lamp panel (10); a light passing panel (30) movably arranged on the support (20), the light passing panel (30) having a light passing gap between the front surface of the lamp panel (10), and the light passing panel (30) being provided with a light passing hole (31); a driving member arranged on the lamp panel (10), the driving member driving the light passing panel (30) to move so that the light emitted by the lamp beads (11) of the lamp panel (10) can pass through the light passing hole (31) to be adjusted; a guide structure arranged between the support (20) and the light passing panel (30), the guide structure being capable of guiding the movement of the light passing panel (30).

2. The dimming assembly of claim 1, wherein, The driving member is arranged on the rear side of the lamp panel (10), the light adjusting assembly further comprises a swing member (60) swingably arranged on the lamp panel (10) and a transmission member (70) arranged on the light passing panel (30), the swing member (60) and the transmission member (70) are in transmission cooperation, and the driving member drives the swing member (60) to swing to drive the light passing panel (30) to move through the transmission member (70).

3. The dimming assembly of claim 2, wherein, The swing member (60) is provided with a driving gap (61), the transmission member (70) comprises a transmission rod (71) movably arranged in the driving gap (61) and a connecting plate (72) connected between the transmission rod (71) and the light passing panel (30); when the swing member (60) swings, the side wall of the driving gap (61) abuts against the transmission rod (71) to drive the transmission rod (71) to move.

4. The dimming assembly of claim 3, wherein, The connecting plate (72) is two spaced apart connecting plates, the transmission rod (71) is connected between the two connecting plates (72), and the swing member (60) is located between the two connecting plates (72).

5. The dimming assembly of claim 2, wherein, The driving member comprises a driving motor (41), a transmission shaft (42) and a seat body (43), the driving motor (41) is in transmission connection with the transmission shaft (42), the transmission shaft (42) is rotatably arranged in the seat body (43), the swing member (60) is connected to the transmission shaft (42) and is in rotation-stopping cooperation with the transmission shaft (42).

6. The dimming assembly of claim 1, wherein, The guide structure comprises a guide rod (51) and a clamping member in guide cooperation with the guide rod (51), the clamping member is movably clamped on the guide rod (51), one of the guide rod (51) and the clamping member is arranged on the support (20), and the other of the guide rod (51) and the clamping member is arranged on the light passing panel (30).

7. The dimming assembly of claim 6, wherein, The clamping piece comprises a first clamping arm (521), a first clamping block (522), a second clamping arm (524) and a second clamping block (525), the first clamping block (522) is arranged on the first clamping arm (521), the second clamping block (525) is arranged on the second clamping arm (524), the guide rod (51) is located between the first clamping arm (521) and the second clamping arm (524), the first clamping block (522) and the second clamping block (525) are arranged oppositely, the first clamping block (522) is in abutting cooperation with the guide rod (51), and the second clamping block (525) is in abutting cooperation with the guide rod (51).

8. The light adjusting assembly according to claim 7, characterized in that, a first guide inclined surface (523) is arranged on a surface of the first clamping block (522) facing the second clamping block (525), the guide rod (51) is in guide cooperation with the first guide inclined surface (523) when the guide rod (51) is inserted between the first clamping arm (521) and the second clamping arm (524); and / or, a second guide inclined surface (526) is arranged on a surface of the second clamping block (525) facing the first clamping block (522), the guide rod (51) is in guide cooperation with the second guide inclined surface (526) when the guide rod (51) is inserted between the first clamping arm (521) and the second clamping arm (524).

9. The light adjusting assembly according to claim 1, characterized in that, the support (20) comprises a plurality of baffle plates (21) arranged at intervals, the plurality of baffle plates (21) are arranged on the front side of the lamp panel (10) to divide the lamp panel (10) into a plurality of display areas; and / or, the light passing hole (31) is a long strip hole, the long strip hole penetrates through the front surface of the light passing plate (30) and the rear surface of the light passing plate (30), and the long strip hole gradually shrinks in the direction from the rear side of the lamp panel (10) to the front side of the lamp panel (10).

10. An LED display device comprising a lamp panel (10) and a light adjusting assembly provided on the front side of the lamp panel (10), characterized in that, The light adjusting assembly is the light adjusting assembly according to any one of claims 1 to 9.

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