Lamp panel and display device

Abstract

The invention provides a lamp panel and a display device. The lamp panel comprises a substrate and a plurality of light-emitting units. A plurality of light-emitting units are arranged on a substrate, the light-emitting units are arranged in columns in the first direction and arranged in rows in the second direction on the substrate, the first direction is perpendicular to the second direction, every two adjacent columns of light-emitting units are arranged in a staggered mode, the distance between the light-emitting units in the first row of the m-th column and the light-emitting units in the second row of the m-th column is a first distance a, and the distance between the light-emitting units in the second row of the m-th column is a second distance b. The distance between the light-emitting units in the first row of the (m + 1) th column and the light-emitting units in the second row of the (m + 1) th column is a second distance b, m is a positive integer, and a and b meet the conditions that a is smaller than b, and a-b / 2 is smaller than or equal to 0.5 mm. According to the lamp panel, on the premise that the number of the light-emitting units is not increased, lamp shadows in the internal area and the edge area can be improved, and uniform display is achieved.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a lamp panel and a display device. Background Art

[0002] The arrangement of the light-emitting units of the light board on the base substrate is generally a rectangular arrangement or a diamond arrangement. When a rectangular arrangement is adopted, more light-emitting units need to be used to reduce the lamp shadow effect. When a diamond arrangement is adopted, although the number of light-emitting units can be reduced, a jagged and uneven brightness phenomenon is likely to occur at the edge of the light board. Summary of the invention

[0003] The purpose of the embodiments of the present invention is to provide a light board and a display device, which can reduce the number of light-emitting units used and improve the problem of uneven brightness and jagged edges of the light board. The specific technical solution is as follows:

[0004] In a first aspect, the present application provides a light board, comprising: a base substrate; a plurality of light-emitting units, wherein the plurality of light-emitting units are arranged on the base substrate, the light-emitting units are arranged in columns along a first direction on the base substrate, and in rows along a second direction, the first direction and the second direction are perpendicular, the light-emitting units in two adjacent columns are staggered, the spacing between the light-emitting units in the first row of the m-th column and the light-emitting units in the second row of the m-th column is a first spacing a, and the spacing between the light-emitting units in the first row of the m+1-th column and the light-emitting units in the second row of the m+1-th column is a second spacing b, wherein m is a positive integer, and a and b satisfy: a<b, and ab / 2≤0.5mm.

[0005] In addition, the light board provided according to the first aspect of the present application may also have the following technical features:

[0006] In some embodiments, the spacing between the light-emitting units in the penultimate row of the mth column and the light-emitting units in the penultimate row of the mth column is a first spacing a, and the spacing between the light-emitting units in the penultimate row of the m+1th column and the penultimate row of the m+1th column is b, where a and b satisfy: a<b, and ab / 2≤0.5mm.

[0007] In some embodiments, the total number of columns along the first direction is an odd number, the mth column is an odd column, the m+1th column is an even column, and along the first direction, the light-emitting units in the first row of the mth column are closer to the edge of the substrate than the light-emitting units in the first row of the m+1th column.

[0008] In some embodiments, along the first direction, the interval between the light-emitting units in the first row of the mth column and the light-emitting units in the first row of the m+1th column is less than or equal to 0.5 mm, and the interval between the light-emitting units in the penultimate row of the mth column and the light-emitting units in the penultimate row of the m+1th column is less than or equal to 0.5 mm.

[0009] In some embodiments, the light-emitting units in the two alternating columns are symmetrically distributed relative to the middle column, the spacing between each adjacent row between the second row of the mth column and the second to last row of the mth column is the second spacing b, and the spacing between each adjacent row in the m+1th column is the second spacing b.

[0010] In some embodiments, the region where the spacing between two adjacent rows is the second spacing b is an inner region, and a center line connecting four adjacent light-emitting units in two adjacent columns of the inner region is a rhombus.

[0011] In some embodiments, the region where the spacing between two adjacent rows is the second spacing b is an internal region, and a line connecting the centers of three adjacent light-emitting units in two adjacent columns of the internal region is an equilateral triangle.

[0012] In some embodiments, the light emitting unit is one of LED, MiniLED or MicroLED.

[0013] A second aspect of the present application provides a display device, which includes the light board described above.

[0014] In some embodiments, the display device includes a liquid crystal panel and a backlight module, the backlight module includes a light board, the liquid crystal panel is arranged on the light emitting side of the backlight module, and the light board is used to provide a light source for the liquid crystal panel.

[0015] In some embodiments, a packaging layer is provided on the side of the light emitting unit away from the base substrate, and the backlight module further comprises a first diffusion film, which is provided on the side of the packaging layer away from the base substrate, and the first diffusion film is in direct contact with the packaging layer.

[0016] In some embodiments, the backlight module further includes a blue light-transmitting film, a color conversion film, a light-homogenizing film, a brightness-enhancing film, and a second diffusion film, which are arranged on a side of the first diffusion film away from the base substrate.

[0017] In some embodiments, the backlight module includes a rubber frame and a back panel. The rubber frame is disposed in the back panel and abuts or bonds with the side wall of the back panel. The rubber frame is at least partially higher than the upper surface of the back panel and is used to support the liquid crystal panel and bonded to a side of the liquid crystal panel close to the back film module. The light panel is located in the rubber frame and bonded to the side wall of the back panel through the rubber frame.

[0018] Beneficial effects of the embodiments of the present invention:

[0019] In the light board and display device provided by the embodiment of the present invention, the first spacing a and the second spacing b between the light-emitting units in the first row and the second row of two adjacent columns on the light board satisfy: a<b, so that the spacing between the light-emitting units in the second row of the mth column and the edge of the substrate is reduced, which can increase the arrangement density of the light-emitting units in the area close to the edge of the substrate, and can reduce the number of light-emitting units used compared to the spacing between the light-emitting units in the first row and the second row in the two adjacent columns being the first spacing a, and can improve the density of the light-emitting units in the edge area compared to the spacing between the light-emitting units in the first row and the second row in the two adjacent columns being the second spacing b, and improve the jagged brightness unevenness caused by the sudden decrease in the number of light-emitting units in the edge area of ​​the light board due to the misaligned arrangement of the two adjacent columns. Furthermore, ab / 2≤0.5mm, so that the second spacing a<b≤2a-1, can reduce the difference between the first spacing a and the second spacing b, so that the arrangement of the light-emitting units is a gradual arrangement from the inside to the edge, so that the overall light emission of the light board is more uniform.

[0020] Of course, it is not necessary to achieve all of the advantages described above at the same time to implement any product or method of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention, and for ordinary technicians in this field, other embodiments can also be obtained based on these drawings.

[0022] Figure 1 A simplified structural schematic diagram of a light board provided in an embodiment of the present application in one embodiment;

[0023] Figure 2 for Figure 1 The luminous effect diagram of the middle light board;

[0024] Figure 3 This is a light-emitting effect diagram of a light panel in the related art;

[0025] Figure 4A schematic diagram of the local structure of the upper left portion of a light board provided in an embodiment of the present application;

[0026] Figure 5 A schematic diagram of the local structure of the lower edge of a light panel provided in an embodiment of the present application;

[0027] Figure 6 A schematic diagram of the structure of a display device provided in an embodiment of the present application in one embodiment.

[0028] The figures are marked as follows: backlight module 100; lamp board 101; base substrate 1011; light-emitting unit 1012; encapsulation layer 1013; first diffusion film 102; blue light-transmitting film 103; color conversion film 104; uniform light film 105; brightness enhancement film 106; second diffusion film 107; plastic frame 108; adhesive tape 109; back plate 110; liquid crystal panel 200; first polarizer 300; second polarizer 400; first spacing a; second spacing b; spacing c; edge area A; internal area B; first direction X; second direction Y. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field based on this application belong to the scope of protection of the present invention.

[0030] The first aspect of the present application provides a light board 101, such as Figure 1 As shown, the light board 101 includes: a base substrate 1011 and a plurality of light-emitting units 1012. The plurality of light-emitting units 1012 are arranged on the base substrate 1011, and the light-emitting units 1012 are arranged in columns along a first direction X and in rows along a second direction Y on the base substrate 1011, the first direction X and the second direction Y are perpendicular, the light-emitting units 1012 in two adjacent columns are arranged in a staggered manner, the spacing between the light-emitting units 1012 in the first row of the m-th column and the light-emitting units 1012 in the second row of the m-th column is a first spacing a, and the spacing between the light-emitting units 1012 in the first row of the m+1-th column and the light-emitting units 1012 in the second row of the m+1-th column is a second spacing b, wherein m is a positive integer, and a and b satisfy: a<b, ab / 2≤0.5mm.

[0031] In this embodiment, the first direction X can be the long side direction of the light board 101 or the short side direction of the light board 101, and this application does not impose any restrictions on this. The first spacing a and the second spacing b satisfy: a<b, so that the spacing between the light-emitting unit 1012 in the second row of the mth column and the edge of the substrate 1011 is reduced, which can increase the arrangement density of the light-emitting unit 1012 in the edge area A close to the substrate 1011, and can reduce the number of light-emitting units 1012 used compared to the spacing between the first and second rows of the light-emitting units 1012 in the two adjacent columns being the first spacing a, and can improve the density of the light-emitting units 1012 in the edge area A compared to the spacing between the first and second rows of the light-emitting units 1012 in the two adjacent columns being the second spacing b, and can improve the jagged brightness unevenness caused by the sudden decrease in the number of light-emitting units 1012 in the edge area A of the light board 101 due to the staggered arrangement of the two adjacent columns. Furthermore, ab / 2≤0.5mm, so that the second spacing a<b≤2a-1, can reduce the difference between the first spacing a and the second spacing b, so that the arrangement of the light-emitting unit 1012 is a gradual arrangement from the inside to the edge, making the overall light emission of the lamp board 101 more uniform.

[0032] like Figure 2 Schematic diagram of the lighting effect when the first spacing a and the second spacing b satisfy: ab / 2≤0.5mm. Figure 3 Schematic diagram of the lighting effect when the first spacing a and the second spacing b do not satisfy ab / 2≤0.5 mm. It can be seen that when the first spacing a and the second spacing b satisfy ab / 2≤0.5 mm, the jagged brightness unevenness of the edge area A can be significantly improved.

[0033] In this embodiment, the distance between a row of light-emitting units 1012 close to the edge of the base substrate 1011 and the next adjacent row of light-emitting units 1012 is reduced, so that the luminous brightness of the edge area A of the base substrate 1011 is improved, thereby compensating for the jagged brightness unevenness caused by the staggered arrangement of the edge area A of the base substrate 1011 resulting in a reduction in the number of light-emitting units 1012 per unit area.

[0034] In order to improve the improvement effect of the jagged light and dark of the edge area A, Figure 1 , Figure 4As shown, the first row of the mth column is usually arranged closer to the edge of the base substrate 1011 than the first row of the m+1th column, so as to further increase the arrangement density of the light emitting units 1012 in the edge region A. The edge region A refers to the region where all or part of the first row of each of the two adjacent columns are located, and the region where the spacing between each of the two adjacent rows is the second spacing b is the internal region B, and the boundary between the internal region B and the edge region A is defined as: in the two adjacent columns arranged in a staggered manner, the first row thereof is further away from the center of the light emitting unit 1012 at the edge of the base substrate 1011, and part of the light emitting unit 1012 in the row belongs to the edge region A and part to the internal region B.

[0035] Optionally, taking a 16-inch NB (Narrow Beam) light panel as an example, the first spacing a may be: 0.5 mm ≤ a ≤ 2.5 mm, and the second spacing b may be: 1 mm ≤ b ≤ 4 mm.

[0036] In actual production, the absolute value of the difference between the column spacing between two adjacent columns and the row spacing between two adjacent rows is less than or equal to 0.3 mm, for example, it can be 0.3 mm, 0.2 mm, 0.1 mm, 0 mm, etc. The specific difference varies depending on the film material selected.

[0037] In some embodiments, Figure 5 As shown, the spacing between the light-emitting units 1012 in the penultimate row of the mth column and the light-emitting units 1012 in the penultimate row of the mth column is a first spacing a, and the spacing between the light-emitting units 1012 in the penultimate row of the m+1th column and the penultimate row of the m+1th column is b, where a and b satisfy: a<b, and ab / 2≤0.5mm.

[0038] In this embodiment, the penultimate row refers to a row close to the edge of the other side of the base substrate 1011 along the first direction X, and the arrangement of the light-emitting units 1012 in the penultimate row and the penultimate row on this side of the base substrate 1011 is the same as the arrangement of the first row and the second row, thereby improving the jagged brightness unevenness caused by the sudden decrease in the number of light-emitting units 1012 in the edge area A on the other side of the lamp board 101, and improving the overall light uniformity of the lamp board 101.

[0039] Since two adjacent columns are staggered in distribution, the number of rows in the mth column is not necessarily equal to the number of rows in the m+1th column.

[0040] Optionally, the total number of columns along the first direction X is an odd number, the mth column is an odd column, the m+1th column is an even column, and along the first direction X, the light-emitting units 1012 of the first row of the mth column are closer to the edge of the base substrate 1011 than the light-emitting units 1012 of the first row of the m+1th column.

[0041] In this embodiment, since the total number of columns is an odd number, the light-emitting units 1012 at the two vertex positions where the substrate 1011 is sequentially arranged along the second direction Y are arranged in a consistent manner, so that the light-emitting brightness at the two vertex positions tends to be consistent, thereby improving the uniformity of the overall light-emitting brightness of the light board 101. In addition, the distance between the light-emitting units 1012 in the first row of the odd-numbered columns and the edge of the substrate 1011 is smaller, so that the arrangement density of the light-emitting units 1012 at the four vertex positions of the substrate 1011 is relatively large, thereby improving the problem of low brightness at the corner positions of the light board 101 due to the reduction in the number of light-emitting units 1012.

[0042] In some embodiments, Figure 5 As shown, along the first direction X, the interval c between the light-emitting units 1012 in the first row of the m-th column and the light-emitting units 1012 in the first row of the m+1-th column is less than or equal to 0.5 mm, for example, the interval c can be 0.5 mm, 0.4 mm, 0.3 mm, etc., and the interval c between the light-emitting units 1012 in the last row of the m-th column and the light-emitting units 1012 in the last row of the m+1-th column is less than or equal to 0.5 mm, for example, the interval c can be 0.5 mm, 0.4 mm, 0.3 mm, etc.

[0043] In this embodiment, the interval c between the light emitting units 1012 in the first row of two adjacent columns refers to the interval c between the center points of the two light emitting units 1012 along the first direction X, which is numerically equal to the length of one light emitting unit 1012 along the first direction X plus the length of the gap between the two light emitting units 1012. The interval c between the two light emitting units 1012 is less than or equal to 0.5 mm, so that the misalignment interval c between the two light emitting units 1012 in the first row of two adjacent columns or the two light emitting units 1012 in the last row is smaller, thereby improving the jagged brightness unevenness phenomenon caused by the misaligned arrangement of the edge area A.

[0044] In some embodiments, Figure 1 , Figure 4 , Figure 5 As shown, the light emitting units 1012 in two alternating columns are symmetrically distributed relative to the middle column, the spacing between each adjacent row between the second row of the mth column and the second to last row of the mth column is the second spacing b, and the spacing between each adjacent row in the m+1th column is the second spacing b.

[0045] When the light-emitting units 1012 in two adjacent columns are arranged alternately and the two alternate columns are symmetrically distributed about the middle column, for the inner area B, the light-emitting units 1012 in the two adjacent columns are aligned along the second direction Y, and the spacing between the light-emitting units 1012 in the same column is not changed, and the column spacing of the light-emitting units 1012 is not changed. However, since the area between any two adjacent light-emitting units 1012 is illuminated by the light emitted by other light-emitting units 1012, the dark area between the two adjacent light-emitting units 1012 will be greatly reduced, and the overall display brightness of the light board 101 will be improved.

[0046] Optionally, the center line connecting four adjacent light-emitting units 1012 in two adjacent columns of the inner area B is a diamond shape, such as Figure 4 The four adjacent light emitting units 1012 are shown in the dashed box C.

[0047] It can be understood that when any two alternating columns of the light-emitting units 1012 are arranged symmetrically about the middle column, for the inner region B, the center line between the adjacent four light-emitting units 1012 of any two adjacent columns is a parallelogram. When the center line between the adjacent four light-emitting units 1012 is a rhombus, compared with the parallelogram arrangement, the spacing between the light-emitting units 1012 in the same column and the column spacing between the two adjacent columns are not changed. However, since the distance between the two light-emitting units 1012 along the rhombus side is equal, the area between any two adjacent light-emitting units 1012 is illuminated more widely, so the dark area between the two adjacent light-emitting units 1012 will be greatly reduced, and the overall display brightness of the light board 101 will be improved. That is, the inner region B adopts a rhombus arrangement, which can improve the light shadow effect when the distance between the light-emitting units 1012 in the first direction X and the second direction Y is greatly different, and reduce the occurrence of light shadow.

[0048] The inner area B provided in the embodiment of the present application is arranged in a diamond shape, and the edge area A can improve the light shadows of the inner area B and the edge area A of the light board 101 by reducing the distance between the first row and the second row and the penultimate row, thereby achieving uniform display.

[0049] Optionally, the center line connecting three adjacent light-emitting units 1012 in two adjacent columns of the inner area B is an equilateral triangle, such as Figure 4 The dotted box D shows three adjacent light emitting units 1012 .

[0050] Compared with the diamond arrangement, since the area between any two adjacent light-emitting units 1012 is illuminated by the light emitted by the third light-emitting unit 1012, and since the equilateral triangle has the characteristic of equal length of each side, the center line between any two light-emitting units 1012 is equal, so the position of each light-emitting unit 1012 is identical, which can further improve the brightness uniformity of the light board 101 and reduce the occurrence of lamp shadows.

[0051] The inner area B provided in the embodiment of the present application is arranged in an equilateral triangle, and the edge area A can improve the light shadows of the inner area B and the edge area A of the light board 101 by reducing the distance between the first row and the second row and the penultimate row, thereby achieving uniform display.

[0052] In the above embodiments, the light emitting unit 1012 is one of LED, MiniLED or MicroLED, wherein the light emitting unit 1012 may be a single LED or a group of light emitting units 1012 formed by a plurality of LEDs.

[0053] A second aspect of the present application provides a display device, such as Figure 6 As shown, the display device includes the light board 101 mentioned above.

[0054] Since the first spacing a and the second spacing b between two adjacent rows of the light-emitting units 1012 of the light board 101 of the display device satisfy: a<b, by reducing the spacing between a row of light-emitting units 1012 close to the edge of the base substrate 1011 and the next row of light-emitting units 1012 adjacent thereto, the light-emitting brightness of the edge region A is improved, compensating for the jagged brightness unevenness caused by the reduction in the number of light-emitting units 1012 per unit area due to the staggered arrangement of the edge region A. And ab / 2≤0.5mm, the difference between the first spacing a and the second spacing b can be reduced, so that the arrangement of the light-emitting units 1012 is a gradual arrangement from the inside to the edge, making the overall light emission of the light board 101 more uniform.

[0055] Among them, the light board 101 can be a display unit of a display device, or it can be a backlight unit that provides a light source for the display unit, and this application does not impose any restrictions on this.

[0056] In some embodiments, Figure 6 As shown, the display device includes a liquid crystal panel 200 and a backlight module 100 . The backlight module 100 includes a lamp board 101 . The liquid crystal panel 200 is arranged on the light emitting side of the backlight module 100 . The lamp board 101 is used to provide a light source for the liquid crystal panel 200 .

[0057] In this embodiment, the lamp board 101 is used as a backlight unit and is a part of the backlight module 100 . The display device may be a liquid crystal display panel, and the lamp board 101 is used to provide a light source for the liquid crystal panel 200 .

[0058] In some embodiments, a packaging layer 1013 is provided on a side of the light emitting unit 1012 away from the base substrate 1011 . The backlight module 100 further includes a first diffusion film 102 . The first diffusion film 102 is provided on a side of the packaging layer 1013 away from the base substrate 1011 . The first diffusion film 102 is in direct contact with the packaging layer 1013 .

[0059] In this embodiment, the first diffusion film 102 is used to homogenize the light emitted by the light emitting unit 1012. The light emitting unit 1012 is located between the base substrate 1011 and the first diffusion film 102, and the first diffusion film 102 is in direct contact with the encapsulation layer 1013 of the light board 101, that is, the OD value is 0, so that the thickness of the display device is reduced, thereby adapting to the light and thin design of the display device.

[0060] In some embodiments, the first diffusion film 102 and the encapsulation layer 1013 of the light-emitting unit 1012 may be spaced a distance c apart, that is, a light mixing area is formed between the first diffusion film 102 and the light-emitting unit 1012, and the light emitted by the light-emitting unit 1012 may be mixed in the light mixing area to make the light emitted by the backlight module 100 more uniform.

[0061] Alternatively, if Figure 6 As shown, the backlight module 100 further includes a blue light-transmitting film 103, a color conversion film 104, a light-homogenizing film 105, a brightness-enhancing film 106, and a second diffusion film 107, which are arranged on a side of the first diffusion film 102 away from the base substrate 1011. The blue light-transmitting film 103, the color conversion film 104, the light-homogenizing film 105, the brightness-enhancing film 106, and the second diffusion film 107 can further process the light emitted by the light-emitting unit 1012, and further improve the brightness and uniformity of the light emitted by the backlight module 100.

[0062] In some embodiments, the backlight module 100 includes a rubber frame 108 and a back panel 110. The rubber frame 108 is disposed in the back panel 110 and is abutted or bonded to the side wall of the back panel 110. The rubber frame 108 is at least partially higher than the upper surface of the back panel 110 and is used to support the liquid crystal panel 200 and is bonded to a side of the liquid crystal panel 200 close to the back film module. The light panel 101 is located in the rubber frame 108 and is bonded to the side wall of the back panel 110 through the rubber frame 108.

[0063] In this embodiment, the adhesive frame 108 is used to bond the backlight module 100 to the back plate 110, and the back plate 110 can support and protect the backlight module 100. The adhesive frame 108 is at least partially higher than the upper surface of the back plate 110, which is convenient for bonding the liquid crystal panel 200 and supports the liquid crystal panel 200. The liquid crystal panel 200 and the back plate 110 are bonded by the adhesive tape 109. The adhesive tape 109 is U-shaped, with one side bonded to the top surface of the liquid crystal panel 200 and the other side bonded to the bottom surface of the back plate 110.

[0064] Depend on Figure 6 It can be seen that the backlight module 100 is not completely located in the back panel 110, so that the side of the glue frame 108 facing away from the liquid crystal panel 200 can be bonded to the back panel 110, and the other side is bonded to the liquid crystal panel 200. The glue frame 108 can realize the bonding of the backlight module 100 and the back panel 110, and the bonding of the liquid crystal panel 200 and the back panel 110, so that the display device becomes a whole. Through the bonding of the tape 109, the connection reliability of the display device can be further improved.

[0065] A first polarizer 300 and a second polarizer 400 are further disposed on the upper and lower sides of the liquid crystal panel 200 .

[0066] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0067] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0068] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A light board, characterized in that: The light board comprises: substrate substrate; A plurality of light-emitting units, wherein the plurality of light-emitting units are arranged on the base substrate, the light-emitting units are arranged in columns along a first direction on the base substrate, and in rows along a second direction, the first direction and the second direction are perpendicular, the light-emitting units in two adjacent columns are staggered, the spacing between the light-emitting units in the first row of the m-th column and the light-emitting units in the second row of the m-th column is a first spacing a, and the spacing between the light-emitting units in the first row of the m+1-th column and the light-emitting units in the second row of the m+1-th column is a second spacing b, wherein m is a positive integer, and a and b satisfy: a<b, and ab / 2≤0.5mm.

2. The light board according to claim 1, characterized in that: The spacing between the light-emitting units in the last row of the mth column and the second-to-last row of the mth column is a first spacing a, and the spacing between the light-emitting units in the last row of the m+1th column and the second-to-last row of the m+1th column is b, where a and b satisfy: a<b, and ab / 2≤0.5mm.

3. The light board according to claim 2, characterized in that: The total number of columns along the first direction is an odd number, the mth column is an odd column, the m+1th column is an even column, and along the first direction, the light-emitting units in the first row of the mth column are closer to the edge of the substrate than the light-emitting units in the first row of the m+1th column.

4. The light board according to claim 2 or 3, characterized in that: Along the first direction, the interval between the light-emitting units in the first row of the m-th column and the light-emitting units in the first row of the m+1-th column is less than or equal to 0.5 mm, and the interval between the light-emitting units in the penultimate row of the m-th column and the light-emitting units in the penultimate row of the m+1-th column is less than or equal to 0.5 mm.

5. The light board according to claim 4, characterized in that: The light-emitting units in the two alternating columns are symmetrically distributed relative to the middle column, the spacing between each adjacent row between the second row in the mth column and the second to last row in the mth column is the second spacing b, and the spacing between each adjacent row in the m+1th column is the second spacing b.

6. The light board according to claim 5, characterized in that: The area where the intervals between two adjacent rows are the second interval b is an inner area, and the center connecting line of four adjacent light-emitting units in two adjacent columns in the inner area is a rhombus.

7. The light board according to claim 5, characterized in that: The area where the intervals between two adjacent rows are the second interval b is an inner area, and a line connecting the centers of three adjacent light-emitting units in two adjacent columns of the inner area forms an equilateral triangle.

8. The light board according to any one of claims 1-3 or 5-7, characterized in that: The light emitting unit is one of LED, MiniLED or MicroLED.

9. A display device, characterized in that: The display device comprises the light board according to any one of claims 1-8.

10. The display device according to claim 9, characterized in that: The display device comprises a liquid crystal panel and a backlight module. The backlight module comprises a lamp board. The liquid crystal panel is arranged on the light emitting side of the backlight module. The lamp board is used to provide a light source for the liquid crystal panel.

11. The display device according to claim 9, characterized in that A packaging layer is disposed on a side of the light emitting unit away from the base substrate. The backlight module further comprises a first diffusion film, which is disposed on a side of the packaging layer away from the base substrate. The first diffusion film is in direct contact with the packaging layer.

12. The display device according to claim 10, characterized in that: The backlight module further includes a blue light-transmitting film, a color conversion film, a light-homogenizing film, a brightness-enhancing film and a second diffusion film, which are arranged on a side of the first diffusion film away from the base substrate.

13. The display device according to claim 9, characterized in that: The backlight module includes a rubber frame and a back plate. The rubber frame is arranged in the back plate and abuts or bonds with the side wall of the back plate. The rubber frame is at least partially higher than the upper surface of the back plate and is used to support the liquid crystal panel and bonded to a side of the liquid crystal panel close to the back film module. The light panel is located in the rubber frame and bonded to the side wall of the back plate through the rubber frame.

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