LED lamp panel and LED display device with same

Abstract

The utility model provides an LED lamp panel and an LED display device with the same, the LED lamp panel comprises a pixel group, the pixel group comprises a first pixel row, a second pixel row and a third pixel row which are arranged along a first direction, the second pixel row comprises a plurality of first pixels arranged along a second direction, and the third pixel row comprises a plurality of second pixels arranged along a third direction; each of the first pixel row and the third pixel row comprises a plurality of second pixels and a plurality of third pixels which are alternately arranged in the second direction, in the first direction, one second pixel and one third pixel are arranged on the two sides of the first pixel respectively, and an included angle is formed between the first direction and the second direction; the number of the pixel groups is multiple, and the multiple pixel groups are arranged in the first direction. According to the technical scheme, the problem that the color cast condition of LED display is high in the prior art can be effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to LED display technical field, specifically, relate to a kind of LED lamp panel and the LED display device with it. BACKGROUND

[0002] LED display screen as a kind of image display equipment has been very common application in various fields, LED display screen usually has the LED lamp panel of realizing display function, LED lamp panel includes several array settings LED lamp pearl, and LED lamp pearl usually includes three colors of light emitting chip, respectively first color light emitting chip, second color light emitting chip, third color light emitting chip, three light emitting chips respectively emit red light, blue light and green light.

[0003] Usually, the sequence of LED lamp pearl on LED lamp panel and the light emitting chip in LED lamp pearl is repeated according to certain rule, when two LED lamp panels are presented at an angle, since the same rule arrangement of two LED lamp panels exists different visual angle difference when being seen by human eye, color deviation phenomenon will appear, color deviation phenomenon will greatly reduce use experience. INVENTION CONTENTS

[0004] The main purpose of the utility model is to provide a kind of LED lamp panel and the LED display device with it, to solve the problem of strong LED display color deviation in the related art.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a kind of LED lamp panel is provided, including: pixel group, including along the first direction arrangement first pixel row, second pixel row and third pixel row, second pixel row includes along the second direction arrangement multiple first pixels, first pixel row and third pixel row are all including along the second direction alternately arranged multiple second pixels and multiple third pixels, in the first direction, the two sides of first pixel are a second pixel and a third pixel respectively, first direction and second direction are arranged at an angle;Wherein, pixel group is multiple, multiple pixel groups are arranged along the first direction.

[0006] Further, in the first direction, corresponding first pixel, second pixel and third pixel in a pixel group form a pixel unit, in the first direction, corresponding two pixel units in adjacent two pixel groups are same.

[0007] Further, in the first pixel row, the connecting line of the center point of first pixel is arranged parallel to the second direction;And / or, in the second pixel row, the connecting line of the center point of second pixel and third pixel is arranged parallel to the second direction;And / or, in the third pixel row, the connecting line of the center point of second pixel and third pixel is arranged parallel to the second direction.

[0008] Further, in one pixel unit, the line connecting the center points of the first pixel, the second pixel and the third pixel is arranged parallel to the first direction.

[0009] Further, in one pixel unit, the line connecting the center points of the first pixel, the second pixel and the third pixel is arranged parallel to the first direction.

[0010] Further, the first pixel comprises a green light emitting chip, the second pixel comprises a red light emitting chip, and the third pixel comprises a blue light emitting chip, the green light emitting chip, the red light emitting chip and the blue light emitting chip have the same size in the first direction, and the green light emitting chip, the red light emitting chip and the blue light emitting chip have the same size in the second direction.

[0011] Further, the size of the green light emitting chip in the second direction is three times the size of the green light emitting chip in the first direction.

[0012] According to another aspect of the present application, an LED display device is provided, which comprises a first straight screen and a second straight screen arranged at an angle, the first straight screen and the second straight screen each comprise an LED lamp plate, and the LED lamp plate is the above-mentioned LED lamp plate.

[0013] According to another aspect of the present application, an LED display device is provided, which comprises a first half-spherical screen and a second half-spherical screen abutting each other, the first half-spherical screen and the second half-spherical screen each comprise an LED lamp plate, and the LED lamp plate is the above-mentioned LED lamp plate.

[0014] According to another aspect of the present application, an LED display device is provided, which comprises a third half-spherical screen, a fourth half-spherical screen and a cylindrical curved screen, the third half-spherical screen and the fourth half-spherical screen are arranged opposite to the openings and are connected to the two ends of the cylindrical curved screen respectively, the third half-spherical screen, the fourth half-spherical screen and the cylindrical curved screen each comprise an LED lamp plate, and the LED lamp plate is the above-mentioned LED lamp plate.

[0015] The technical scheme of the utility model discloses, the pixel group is multiple, multiple pixel groups arrange along the first direction, and the pixel group includes the first pixel row, the second pixel row and the third pixel row along the first direction arrangement;In a pixel group, the second pixel row includes multiple first pixels along the second direction arrangement, and the first pixel row and the third pixel row all include multiple second pixels and multiple third pixels along the second direction alternate arrangement, that is to say, for a pixel group, in addition to the second pixel row is the same color display, the first pixel row and the third pixel row all are by different color second pixel and third pixel alternate arrangement, avoid the first pixel row and the third pixel row also same color display situation;For multiple pixel groups, in the first direction, the first pixel row of one pixel group and the third pixel row of another pixel group are adjacent arrangement, compared with the scheme that the first pixel row and the third pixel row of adjacent in the related art are same color display, the present application presents the second pixel and third pixel alternate arrangement situation in the second direction, avoid the first pixel row and the third pixel row of adjacent in the second direction appear large area same color display situation, reduce the same color display situation through this, even if the human eye looks at the two same LED lamp panels of presenting the included angle setting when there is the visual angle difference, also will because the same color display situation is less and slow down the degree of color cast. Therefore, the technical scheme of the present application can effectively solve the problem that the LED display color cast situation is strong 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 exemplary embodiments of the present application, serve to explain the present application, and do not constitute improper limitations on the present application. In the drawings:

[0017] Figure 1 A front view schematic diagram showing part of the structure of an embodiment of the LED lamp panel according to the present application is shown.

[0018] Figure 2 A structure diagram of a first embodiment of the LED display device according to the present application is shown.

[0019] Figure 3 A front view schematic diagram of a third embodiment of the LED display device according to the present application is shown.

[0020] Figure 4 A front view schematic diagram of an LED lamp panel in the related art is shown.

[0021] Among them, the above-mentioned drawing includes the following sign:

[0022] 1, first color light emitting chip;2, second color light emitting chip;3, third color light emitting chip;

[0023] a, first direction; b, second direction;

[0024] 10, pixel group; 11, first pixel row; 12, second pixel row; 13, third pixel row; 101, first pixel; 1011, green light emitting chip; 102, second pixel; 1021, red light emitting chip; 103, third pixel; 1031, blue light emitting chip; 14, pixel unit;

[0025] 20, first straight screen; 30, second straight screen; 40, third hemispherical screen; 50, fourth hemispherical screen; 60, cylindrical curved screen. DETAILED DESCRIPTION

[0026] 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 the present application.

[0027] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.

[0028] Unless specifically stated otherwise, the relative arrangement of components and steps, numerical expressions, and numerical values set forth in the various embodiments described herein are not meant to limit the scope of the present application. At the same time, it should be understood that the sizes of the various parts shown in the drawings are not drawn in proportion. The techniques, methods and devices known to those skilled in the relevant art can not be discussed in detail, but should be considered as part of the specification under appropriate circumstances. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0029] As Figure 1As shown, the LED lamp panel provided in the present application, the embodiment of the LED lamp panel of the present application comprises: a pixel group 10; the pixel group 10 comprises a first pixel row 11, a second pixel row 12 and a third pixel row 13 arranged along a first direction a, the second pixel row 12 comprises a plurality of first pixels 101 arranged along a second direction b, and the first pixel row 11 and the third pixel row 13 each comprise a plurality of second pixels 102 and a plurality of third pixels 103 arranged alternately along the second direction b, in the first direction a, one second pixel 102 and one third pixel 103 are respectively arranged on both sides of the first pixel 101, and the first direction a and the second direction b are arranged at an angle; wherein the pixel group 10 is multiple, and the multiple pixel groups 10 are arranged along the first direction a.

[0030] The technical scheme of the present embodiment is applied, the pixel group 10 is multiple, the multiple pixel groups 10 are arranged along the first direction a, and the pixel group 10 comprises a first pixel row 11, a second pixel row 12 and a third pixel row 13 arranged along the first direction a; in one pixel group 10, the second pixel row 12 comprises a plurality of first pixels 101 arranged along the second direction b, and the first pixel row 11 and the third pixel row 13 each comprise a plurality of second pixels 102 and a plurality of third pixels 103 arranged alternately along the second direction b, that is, for one pixel group, in addition to the second pixel row 12 being same-color display, the first pixel row 11 and the third pixel row 13 are alternately arranged by second pixels 102 and third pixels 103 of different colors, avoiding the case that the first pixel row 11 and the third pixel row 13 are also same-color display; for multiple pixel groups, in the first direction a, the first pixel row 11 of one of the two adjacent pixel groups 10 is arranged adjacent to the third pixel row 13 of the other pixel group 10, compared with the scheme that the first pixel row 11 and the third pixel row 13 of the related art are adjacent and same-color display, the present embodiment presents the case that the second pixel 102 and the third pixel 103 are arranged alternately in the second direction b, avoiding the case that the adjacent first pixel row 11 and the third pixel row 13 appear large-area same-color display in the second direction b, by reducing the case of same-color display in this way, even if there is a viewing angle difference when the human eye looks at two same LED lamp panels arranged at an angle, the degree of color deviation will be slowed down because of the less same-color display. Therefore, the technical scheme of the present embodiment can effectively solve the problem of strong LED display color deviation in the related art.

[0031] It should be noted that "in the first direction a, the first pixel row 11 of one of the two adjacent pixel groups 10 is arranged adjacent to the third pixel row 13 of the other pixel group 10, the present embodiment presents the case that the second pixel 102 and the third pixel 103 are arranged alternately in the second direction b" refers to:

[0032] In the first case, as described in other embodiments, the pixels of the first pixel row of a pixel group and the pixels of the third pixel row of another adjacent pixel group are the same. These two pixels are the same and adjacent in the first direction. However, in the second direction, these two pixels are different from the two adjacent pixels. Therefore, it will not cause a large area of ​​the same color display between the adjacent first pixel row and the adjacent third pixel row in the second direction.

[0033] The second scenario, such as Figure 1 As shown in this embodiment, in the first direction a, the first pixel 101, the second pixel 102, and the third pixel 103 in a pixel group 10 form a pixel unit 14. In the first direction a, two adjacent pixel units 14 are identical. Specifically, this arrangement ensures that the pixels in the first pixel row 11 of a pixel group 10 and the pixels in the third pixel row 13 of another adjacent pixel group 10 are different. These two pixels are different and adjacent in the first direction a. In the second direction b, these two pixels are also different from their respective adjacent pixels. In this way, adjacent pixels are different from both the first direction a and the second direction b, further reducing the occurrence of the same color display. In addition, "two adjacent pixel units 14 are identical" means that in the first direction a, the order of the pixels in two adjacent pixel units 14 is the same, which also simplifies the arrangement of the LEDs.

[0034] In related technologies, such as Figure 4 As shown, the LEDs arranged horizontally are identical. Taking a single LED in the first row as an example, its vertically arranged LED chips are first color LED chip 1, second color LED chip 2, and third color LED chip 3. Taking a single LED in the second row as an example, its vertically arranged LED chips are third color LED chip 3, second color LED chip 2, and first color LED chip 1. The LEDs in the third row are the same as those in the first row. In this way, when looking at a row of LEDs, the LED chips in each row are the same color. When looking at two adjacent rows of LEDs, the LED chips in the third row of the upper LED and the LED chips in the first row of the lower LED are also the same color. This arrangement will result in more instances of the same color being displayed, thus leading to a stronger color deviation.

[0035] Furthermore, for this embodiment, there is no need to design additional LED beads with different arrangement orders; existing LED beads can be used to achieve the arrangement of this embodiment, saving costs. In this embodiment, the LED light board includes a substrate and multiple mounting plates. One pixel unit 14 is connected to one mounting plate to form an LED bead. The LED bead is connected to the substrate, and the pixel unit 14 includes a first pixel 101, a second pixel 102, and a third pixel 103. Figure 1In the embodiment, the pixel unit 14 at the left upper corner has the pixel arrangement order from top to bottom as: the first pixel 101, the second pixel 102, and the third pixel 103. The pixel unit 14 at the right of the left upper corner has the pixel arrangement order from top to bottom as: the third pixel 103, the second pixel 102, and the first pixel 101. That is, the lamp bead containing the pixel unit 14 at the left upper corner is rotated 180° to obtain the lamp bead containing the pixel unit 14 at the right of the left upper corner, and there is no need to redesign the lamp bead.

[0036] As shown in Figure 1 the first pixel 101 includes a green light emitting chip 1011, the second pixel 102 includes a red light emitting chip 1021, and the third pixel 103 includes a blue light emitting chip 1031. The green light emitting chip 1011, the red light emitting chip 1021, and the blue light emitting chip 1031 have the same size in the first direction a, and have the same size in the second direction b. Specifically, the green light emitting chip 1011, the blue light emitting chip 1031, and the red light emitting chip 1021 are arranged such that each lamp bead can emit light of a full color spectrum, and meet the size requirement, so that the light emitted by each light emitting chip is more uniform.

[0037] As shown in Figure 1 the size of the green light emitting chip 1011 in the second direction b is three times the size of the green light emitting chip 1011 in the first direction a. Specifically, in the embodiment, the blue light emitting chip 1031 and the red light emitting chip 1021 have similar features with the green light emitting chip 1011. When the three light emitting chips meet the requirement, the cross section of the three light emitting chips forms a square-like structure, and the three light emitting chips are arranged in the middle of the mounting plate, so that the light emitted by the lamp bead is more uniform.

[0038] As shown in Figure 1As shown, in the first pixel row 11, the line connecting the center points of the first pixel 101 is parallel to the second direction b; in the second pixel row 12, the line connecting the center points of the second pixel 102 and the third pixel 103 is parallel to the second direction b; and in the third pixel row 13, the line connecting the center points of the second pixel 102 and the third pixel 103 is parallel to the second direction b. Specifically, this arrangement results in the first pixel row 11 having a symmetry line parallel to the second direction b, with each first pixel 101 arranged parallel to this symmetry line; the second pixel row 12 having a symmetry line parallel to the second direction b, with each second pixel 102 and the third pixel 103 arranged parallel to this symmetry line; and the third pixel row 13 having a symmetry line parallel to the second direction b, with each second pixel 102 and the third pixel 103 arranged parallel to this symmetry line. Through this arrangement, the LED display can be made more uniform, and the arrangement of the LED beads can be made more regular.

[0039] like Figure 1 As shown, in a pixel unit 14, the line connecting the center points of the first pixel 101, the second pixel 102, and the third pixel 103 is parallel to the first direction a. Specifically, this arrangement gives the pixel unit 14 a line of symmetry, which is parallel to the first direction a. In this pixel unit 14, the first pixel 101, the second pixel 102, and the third pixel 103 are all arranged parallel to this line of symmetry, which makes the light emission of each LED bead more uniform.

[0040] like Figure 1 As shown, in the multiple pixel groups 10, the line connecting the center points of the corresponding pixel units 14 in the first direction a is parallel to the first direction a. Specifically, this arrangement allows the multiple pixel units 14 to form a pixel unit column in the first direction a. The pixel unit column has a symmetry line, which is parallel to the first direction a. In this pixel unit column, each pixel unit 14 is arranged parallel to this symmetry line. This arrangement allows the LED beads to be arranged according to an array pattern, making the LED light panel display more uniform.

[0041] In addition, such as Figure 2As shown, the present application also provides an LED display device, and a first embodiment of the LED display device of the present application includes a first straight screen 20 and a second straight screen 30 arranged at an angle, and the first straight screen 20 and the second straight screen 30 each include an LED lamp panel, wherein the LED lamp panel is the above-mentioned LED lamp panel. The above-mentioned LED lamp panel can effectively solve the problem of strong color cast in the related art, and the LED display device with the above-mentioned LED lamp panel also has the above-mentioned advantages. Specifically, in the present embodiment, the LED display device forms a hexahedral structure, and the adjacent straight screens are arranged at an angle, and the angle is 90°. When the above-mentioned LED lamp panel is applied, the display screen of the first straight screen 20 and the second straight screen 30 is seen by the human eye at different viewing angle differences. Since the same color display in the first straight screen 20 and the second straight screen 30 is less, the color cast can be reduced. When splicing the first straight screen 20 and the second straight screen 30, the lamp beads need to be arranged corresponding to each other at the splicing ridge line, that is, even if the second pixel 102 adjacent to the second pixel 102 or the third pixel 103 adjacent to the third pixel 103 appears at the splicing ridge line, it will not affect the effect of reducing the color cast of the LED lamp panel as a whole.

[0042] In addition, a second embodiment of the LED display device of the present application includes a first hemispherical screen and a second hemispherical screen abutting each other, and the first hemispherical screen and the second hemispherical screen each include an LED lamp panel, wherein the LED lamp panel is the above-mentioned LED lamp panel. The above-mentioned LED lamp panel can effectively solve the problem of strong color cast in the related art, and the LED display device with the above-mentioned LED lamp panel also has the above-mentioned advantages. Specifically, in the present embodiment, the LED display device has a spherical structure, and the first hemispherical screen and the second hemispherical screen have the same structure, and there is no need to separately design two different hemispherical screens. The first hemispherical screen is rotated by 180° to form the second hemispherical screen. At this time, in the corresponding lamp beads at the splicing position of the first hemispherical screen and the second hemispherical screen, the first pixel row 11 of the lamp bead of the first hemispherical screen corresponds to the third pixel row 13 of the lamp bead of the second hemispherical screen. Even so, there will be no increase in the same color display area.

[0043] In addition, as Figure 3As shown, the third embodiment of the LED display device of the present application comprises a third hemispherical screen 40, a fourth hemispherical screen 50 and a cylindrical curved screen 60, the third hemispherical screen 40 and the fourth hemispherical screen 50 are oppositely arranged at the openings of the cylindrical curved screen 60 and are respectively connected at two ends of the cylindrical curved screen 60, and the third hemispherical screen 40, the fourth hemispherical screen 50 and the cylindrical curved screen 60 all comprise LED lamp panels, wherein the LED lamp panels are the above-mentioned LED lamp panels. The above-mentioned LED lamp panels can effectively solve the problem of strong LED display color deviation in the related art, and the LED display device with the above-mentioned LED lamp panels also has the above-mentioned advantages. The structure of the hemispherical screen of this embodiment is similar to that of the hemispherical screen of the second embodiment.

[0044] In the description of the present application, it should be understood that the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, without making the opposite statement, these orientation words do not indicate and imply that the indicated device or element must have a specific orientation or be constructed and operated in a specific orientation, therefore it cannot be understood as a limitation on the protection scope of the present application; the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0045] For the convenience of description, spatial relative terms such as "on", "above", "upper surface", "upper" and the like can be used herein to describe the spatial positional relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawing is inverted, the device described as "above" or "on" other devices or structures will be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0046] In addition, it should be noted that the use of the words "first", "second" and the like to define parts only facilitates the differentiation of the corresponding parts, and unless otherwise stated, the above words have no special meaning, and therefore cannot be understood as a limitation on the protection scope of the present application.

[0047] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An LED light panel, characterized in that, The pixel group (10) comprises a first pixel row (11), a second pixel row (12) and a third pixel row (13) arranged along a first direction (a), the second pixel row (12) comprises a plurality of first pixels (101) arranged along a second direction (b), the first pixel row (11) and the third pixel row (13) each comprises a plurality of second pixels (102) and a plurality of third pixels (103) arranged alternately along the second direction (b), in the first direction (a), one second pixel (102) and one third pixel (103) are arranged on both sides of the first pixel (101), and the first direction (a) and the second direction (b) are arranged at an angle; wherein The pixel group (10) is a plurality of pixel groups (10), and the plurality of pixel groups (10) are arranged along the first direction (a). In the first direction (a), the corresponding first pixel (101), second pixel (102) and third pixel (103) in one pixel group (10) form a pixel unit (14), and in the first direction (a), the corresponding two pixel units (14) in two adjacent pixel groups (10) are the same.

2. The LED lamp panel of claim 1, wherein, 3. The LED lamp panel according to claim 2, wherein In the first pixel row (11), the connecting line of the center points of the first pixels (101) is arranged parallel to the second direction (b); and / or In the second pixel row (12), the connecting line of the center points of the second pixels (102) and the third pixels (103) is arranged parallel to the second direction (b); and / or In the third pixel row (13), the connecting line of the center points of the second pixels (102) and the third pixels (103) is arranged parallel to the second direction (b). In one pixel unit (14), the connecting line of the center points of the first pixel (101), the second pixel (102) and the third pixel (103) is arranged parallel to the first direction (a).

4. The LED lamp panel of claim 2, wherein, In the plurality of pixel groups (10), the connecting line of the center points of the corresponding pixel units (14) in the first direction (a) is arranged parallel to the first direction (a).

5. The LED lamp panel of claim 2, wherein, The first pixel (101) comprises a green light emitting chip (1011), the second pixel (102) comprises a red light emitting chip (1021), and the third pixel (103) comprises a blue light emitting chip (1031), the size of the green light emitting chip (1011), the red light emitting chip (1021) and the blue light emitting chip (1031) in the first direction (a) is the same, and the size of the green light emitting chip (1011), the red light emitting chip (1021) and the blue light emitting chip (1031) in the second direction (b) is the same.

6. The LED lamp panel according to any one of claims 1 to 5, characterized in that, The size of the green light emitting chip (1011) in the second direction (b) is three times the size of the green light emitting chip (1011) in the first direction (a).

7. The LED lamp panel of claim 6, wherein, ​ 8. An LED display device comprising a first straight face screen (20) and a second straight face screen (30) arranged at an angle, the first straight face screen (20) and the second straight face screen (30) each comprising an LED light plate, characterized in that, The LED lamp panel is the LED lamp panel of any one of claims 1 to 7.

9. An LED display device comprising a first hemispherical screen and a second hemispherical screen which are butted against each other, the first hemispherical screen and the second hemispherical screen each comprising an LED light plate, characterized in that, The LED lamp panel is the LED lamp panel of any one of claims 1 to 7.

10. An LED display device comprising a third hemispherical screen (40), a fourth hemispherical screen (50) and a cylindrical curved screen (60), the third hemispherical screen (40) and the fourth hemispherical screen (50) are oppositely arranged and connected at two ends of the cylindrical curved screen (60) respectively, the third hemispherical screen (40), the fourth hemispherical screen (50) and the cylindrical curved screen (60) all comprise LED lamp panels, characterized in that, The LED lamp panel is the LED lamp panel of any one of claims 1 to 7.

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