A lamp panel and display device

Abstract

The application provides a lamp panel and a display device. The lamp panel comprises a substrate and a plurality of light emitting units. The plurality of light emitting units are arranged on the substrate. The light emitting units are arranged in columns along a first direction and arranged in rows along a second direction on the substrate. The first direction and the second direction are perpendicular. Adjacent two columns of light emitting units are arranged in a staggered manner. The spacing between the light emitting units of the first row of the mth column and the light emitting units of the second row of the mth column is a first spacing a. The spacing between the light emitting units of the first row of the (m+1)th column and the light emitting units of the second row of the (m+1)th column is a second spacing b. m is a positive integer. a and b satisfy: a < b, and a-b / 2 ≤ 0.5 mm. The lamp panel can improve the light shadow of the internal area and the edge area without increasing the number of light emitting units, and realize uniform display.

Description

Technical Field

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

[0002] The light-emitting units of the lamp board are generally arranged in a rectangular or diamond pattern on the substrate. When a rectangular arrangement is used, more light-emitting units are needed to reduce the shadow effect. When a diamond arrangement is used, although the number of light-emitting units can be reduced, jagged uneven brightness is likely to appear at the edge of the lamp board. Summary of the Invention

[0003] The purpose of this invention is to provide a light panel and display device that, while reducing the number of light-emitting units, improves the problem of jagged, uneven brightness at the edges of the light panel. The specific technical solution is as follows:

[0004] The first aspect of this application provides a lamp board, the lamp board comprising: a substrate; a plurality of light-emitting units, the plurality of light-emitting units being disposed on the substrate, the light-emitting units being arranged in columns along a first direction and in rows along a second direction on the substrate, the first direction and the second direction being perpendicular, the light-emitting units in adjacent columns being staggered, 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 being a first distance a, 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 being a second distance b, wherein m is a positive integer, and a and b satisfy: a < b, and ab / 2 ≤ 0.5 mm.

[0005] In addition, the light panel provided in the first aspect of this application may also have the following technical features:

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

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

[0008] In some embodiments, along the first direction, the interval between the light-emitting unit in the first row of the m-th column and the light-emitting unit 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 unit in the penultimate row of the m-th column and the light-emitting unit in the penultimate row of the (m+1)-th 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 with respect to the middle column, the spacing between each pair of adjacent rows between the second row of the m-th column and the penultimate row of the m-th column is a second spacing b, and the spacing between each pair of adjacent rows in the (m+1)-th column is also a second spacing b.

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

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

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

[0013] A second aspect of this application provides a display device, the display device comprising the lamp panel described above.

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

[0015] In some embodiments, the light-emitting unit has an encapsulation layer on the side away from the substrate, and the backlight module further includes a first diffusion film, which is disposed on the side of the encapsulation layer away from the substrate and is in direct contact with the encapsulation layer.

[0016] In some embodiments, the backlight module further includes a blue light transmission film, a color conversion film, a light uniform film, a brightness enhancement film, and a second diffusion film disposed on the side of the first diffusion film away from the substrate.

[0017] In some embodiments, the backlight module includes a frame and a back plate. The frame is disposed within the back plate and abuts against or is bonded to the side wall of the back plate. The frame is at least partially higher than the upper surface of the back plate to support the liquid crystal panel and is bonded to the side of the liquid crystal panel near the back film module. The lamp plate is located within the frame and is bonded to the side wall of the back plate through the frame.

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

[0019] The lamp board and display device provided in this embodiment of the invention satisfy the following condition: a < b between the first spacing 'a' and the second spacing 'b' between the light-emitting units in the first and second rows of adjacent columns on the lamp board. This reduces the distance between the light-emitting units in the second row of the m-th column and the edge of the substrate, increasing the density of light-emitting units near the edge of the substrate. Compared to a situation where the spacing between the light-emitting units in the first and second rows of adjacent columns is the first spacing 'a', this reduces the number of light-emitting units used. Compared to a situation where the spacing between the light-emitting units in the first and second rows of adjacent columns is the second spacing 'b', this increases the density of light-emitting units in the edge region, improving the jagged unevenness in brightness caused by the sudden reduction in the number of light-emitting units in the edge region due to the staggered arrangement of adjacent columns. Furthermore, ab / 2 ≤ 0.5 mm ensures that the second spacing a < b ≤ 2a-1, reducing the difference between the first spacing 'a' and the second spacing 'b'. This results in a gradual arrangement of light-emitting units from the inside to the edge, making the overall light emission of the lamp board more uniform.

[0020] Of course, implementing any product or method of the present invention does not necessarily require achieving all of the advantages described above at the same time. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other embodiments can be obtained based on these drawings.

[0022] Figure 1 A simplified structural diagram of the light panel provided in one embodiment of this application;

[0023] Figure 2 for Figure 1 Illumination effect diagram of the central light panel;

[0024] Figure 3 This is a diagram illustrating the light-emitting effect of a light panel in a related technology.

[0025] Figure 4A partial structural diagram of the upper left part of the lamp panel provided in one embodiment of this application;

[0026] Figure 5 A schematic diagram of a partial structure of the lower edge of the lamp panel provided in one embodiment of this application;

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

[0028] The reference numerals in the attached figures are as follows: backlight module 100; lamp board 101; substrate 1011; light-emitting unit 1012; encapsulation layer 1013; first diffusion film 102; blue light transmission film 103; color conversion film 104; light uniform film 105; brightness enhancement film 106; second diffusion film 107; frame 108; tape 109; back plate 110; liquid crystal panel 200; first polarizer 300; second polarizer 400; first spacing a; second spacing b; interval c; edge region A; inner region B; first direction X; second direction Y. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art based on this application are within the scope of protection of the present invention.

[0030] The first aspect of this application provides a light panel 101, such as... Figure 1 As shown, the lamp board 101 includes a substrate 1011 and a plurality of light-emitting units 1012. The plurality of light-emitting units 1012 are disposed on the substrate 1011. The light-emitting units 1012 are arranged in columns along a first direction X and in rows along a second direction Y on the substrate 1011. The first direction X and the second direction Y are perpendicular. Adjacent columns of light-emitting units 1012 are staggered. The distance 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 distance a, and the distance 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 distance b. Here, m is a positive integer, and a and b satisfy: a < b, ab / 2 ≤ 0.5 mm.

[0031] In this embodiment, the first direction X can be either the long side direction of the lamp board 101 or the short side direction of the lamp board 101, and this application does not limit this. The first spacing a and the second spacing b satisfy: a < b, which reduces the distance between the light-emitting unit 1012 in the second row of the m-th column and the edge of the substrate 1011. This increases the density of the light-emitting unit 1012 in the edge region A near the substrate 1011. Compared to the first spacing a in the first and second rows of adjacent columns, the number of light-emitting units 1012 used can be reduced. Compared to the second spacing b in the first and second rows of adjacent columns, the density of light-emitting units 1012 in the edge region A can be increased, improving the jagged uneven brightness caused by the sudden reduction in the number of light-emitting units 1012 in the edge region A of the lamp board 101 due to the staggered arrangement of adjacent columns. Furthermore, ab / 2≤0.5mm, which makes the second spacing a<b≤2a-1, can reduce the difference between the first spacing a and the second spacing b, thereby making the arrangement of the light-emitting units 1012 gradually change from the inside to the edge, making the overall light emission of the lamp board 101 more uniform.

[0032] like Figure 2 This diagram illustrates the luminous effect when the first spacing 'a' and the second spacing 'b' satisfy the condition ab / 2 ≤ 0.5 mm. Figure 3 This diagram illustrates the light emission 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 unevenness in brightness and darkness of the edge region A can be significantly improved.

[0033] In this embodiment, by reducing the spacing between a row of light-emitting units 1012 near the edge of the substrate 1011 and its adjacent next row of light-emitting units 1012, the brightness of the edge region A of the substrate 1011 is increased, which compensates for the jagged uneven brightness caused by the reduced number of light-emitting units 1012 per unit area due to the staggered arrangement of the edge region A of the substrate 1011.

[0034] To improve the effect of reducing jagged highlights and shadows in edge area A, such as Figure 1 , Figure 4As shown, the first row of the m-th column is typically positioned closer to the edge of the substrate 1011 than the first row of the (m+1)-th column to further increase the density of the light-emitting units 1012 in the edge region A. Edge region A refers to the area containing all or part of the first row of each of two adjacent columns. The area where the spacing between each pair of adjacent rows is the second spacing b is the inner region B. The boundary between inner region B and edge region A is defined as follows: in two staggered adjacent columns, the light-emitting units 1012 in the first row that are further away from the edge of the substrate 1011 belong partly to edge region A and partly to inner region B.

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

[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 0.3mm. For example, it can be 0.3mm, 0.2mm, 0.1mm, 0mm, etc. The specific difference varies depending on the choice of membrane material.

[0037] In some embodiments, such as Figure 5 As shown, the distance between the light-emitting unit 1012 in the last row of the m-th column and the light-emitting unit 1012 in the second-to-last row of the m-th column is the first distance a, and the distance between the light-emitting unit 1012 in the last row of the (m+1)-th column and the light-emitting unit 1012 in the second-to-last row of the (m+1)-th column is b, where a and b satisfy: a < b, and ab / 2 ≤ 0.5 mm.

[0038] In this embodiment, the last row refers to the row along the first direction X that is close to the other edge of the substrate 1011. The arrangement of the light-emitting units 1012 in the last row and the second row on this side of the substrate 1011 is the same as that in the first and second rows. This can improve the jagged unevenness of light and dark caused by the sudden reduction in the number of light-emitting units 1012 in the other edge area A of the lamp board 101, and improve the overall light emission uniformity of the lamp board 101.

[0039] Because adjacent columns are staggered, the number of rows in column m and column (m+1) are not necessarily equal.

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

[0041] In this embodiment, since the total number of columns is odd, the light-emitting units 1012 arranged sequentially at the two vertices along the second direction Y on the substrate 1011 are arranged in a consistent manner, thereby making the luminous brightness at the two vertices more uniform and improving the overall uniformity of the luminous brightness of the lamp board 101. Furthermore, 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, resulting in a higher density of light-emitting units 1012 at the four vertices of the substrate 1011, thus mitigating the problem of lower brightness at the corners of the lamp board 101 due to the reduced number of light-emitting units 1012.

[0042] In some embodiments, such as Figure 5 As shown, along the first direction X, the interval c between the light-emitting unit 1012 in the first row of the m-th column and the light-emitting unit 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. The interval c between the light-emitting unit 1012 in the last row of the m-th column and the light-emitting unit 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. Numerically, it is 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 two light-emitting units 1012 is less than or equal to 0.5 mm, making 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 smaller, thus improving the jagged uneven brightness phenomenon in the edge region A caused by misaligned arrangement.

[0044] In some embodiments, such as Figure 1 , Figure 4 , Figure 5 As shown, the light-emitting units 1012 in two alternating columns are symmetrically distributed with respect to the middle column. The spacing between each pair of adjacent rows between the second row of the m-th column and the penultimate row of the m-th column is the second spacing b, and the spacing between each pair of adjacent rows in the (m+1)-th column is also the second spacing b.

[0045] When the light-emitting units 1012 in two adjacent columns are staggered and the two columns are symmetrically distributed about the middle column, for the inner region B, the light-emitting units 1012 in the two adjacent columns are aligned along the second direction Y. The spacing between the light-emitting units 1012 in the same column is not changed, nor is the column spacing of the light-emitting units 1012. 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 two adjacent light-emitting units 1012 will be greatly reduced, and the overall display brightness of the light panel 101 will be improved.

[0046] Optionally, the center line connecting four adjacent light-emitting units 1012 in two adjacent columns of the internal region B forms a rhombus, such as... Figure 4 The four adjacent light-emitting units 1012 are shown in the dashed box C.

[0047] Understandably, when two rows of light-emitting units 1012 are symmetrically arranged about the middle row, for the internal region B, the center line connecting the four adjacent light-emitting units 1012 in any two adjacent rows forms a parallelogram. When the center line connecting the four adjacent light-emitting units 1012 forms a rhombus, compared to the parallelogram arrangement, the spacing between the light-emitting units 1012 in the same column and the column spacing between adjacent columns remain unchanged. However, since the distance between two light-emitting units 1012 along the rhombus is equal, the area between any two adjacent light-emitting units 1012 is illuminated more widely, thus greatly reducing the dark area between two adjacent light-emitting units 1012 and improving the overall display brightness of the light panel 101. In other words, by using a rhombus arrangement in the internal region B, without increasing the number of light-emitting units 1012, the lighting effect can be improved when the distance between the light-emitting units 1012 along the first direction X and the second direction Y differs significantly, reducing the occurrence of lighting shadows.

[0048] The internal region B provided in this embodiment is arranged in a diamond shape. By reducing the distance between the first and second rows, as well as between the last row and the second-to-last row, the edge region A can not only improve the light shadows of the internal region B and the edge region A of the light panel 101, but also achieve uniform display.

[0049] Optionally, the center line connecting three adjacent light-emitting units 1012 in two adjacent columns of the internal region B forms an equilateral triangle, such as... Figure 4 The three adjacent light-emitting units 1012 are shown in the dashed box D.

[0050] Compared to a rhomboid arrangement, since the area between any two adjacent light-emitting units 1012 is illuminated by the light emitted from the third light-emitting unit 1012, and since the equilateral triangle has the characteristic that all sides are of equal length, the center lines connecting any two light-emitting units 1012 are equal. Therefore, the position of each light-emitting unit 1012 is identical, which can further improve the brightness uniformity of the lamp panel 101 and reduce the occurrence of lamp shadows.

[0051] The internal region B provided in this embodiment is arranged in an equilateral triangle, and the edge region A is narrowed by reducing the distance between the first and second rows, as well as the penultimate and penultimate rows. This not only improves the light shadows of the internal region B and the edge region A of the light panel 101, but also achieves uniform display.

[0052] In the above embodiments, the light-emitting unit 1012 is one of LED, MiniLED, or MicroLED. The light-emitting unit 1012 can be a single LED or a group of multiple LEDs forming a light-emitting unit 1012.

[0053] A second aspect of the embodiments of this application provides a display device, such as... Figure 6 As shown, the display device includes the lamp panel 101 described above.

[0054] Since the first spacing a and the second spacing b between adjacent rows of light-emitting units 1012 in the lamp panel 101 of the display device satisfy the condition a < b, by reducing the spacing between a row of light-emitting units 1012 near the edge of the substrate 1011 and its adjacent next row of light-emitting units 1012, the brightness of the edge region A is increased, compensating for the jagged uneven brightness caused by the reduced number of light-emitting units 1012 per unit area due to the staggered arrangement in the edge region A. Furthermore, ab / 2 ≤ 0.5 mm, which reduces the difference between the first spacing a and the second spacing b, thereby making the arrangement of the light-emitting units 1012 a gradual transition from the inside to the edge, resulting in more uniform overall light emission from the lamp panel 101.

[0055] The lamp board 101 can be a display unit of the display device or a backlight unit that provides a light source for the display unit; this application does not limit this.

[0056] In some embodiments, such as 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 disposed on the light-emitting side of the backlight module 100, and 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. The lamp board 101 is part of the backlight module 100, and the display device can be a liquid crystal display panel. The lamp board 101 is used to provide a light source for the liquid crystal panel 200.

[0058] In some embodiments, the light-emitting unit 1012 is provided with an encapsulation layer 1013 on the side away from the substrate 1011, and the backlight module 100 further includes a first diffusion film 102, which is disposed on the side of the encapsulation layer 1013 away from the substrate 1011, and the first diffusion film 102 is in direct contact with the encapsulation 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 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 lamp board 101, i.e., the OD value is 0, so as to reduce the thickness of the display device and thus adapt to the thin and light 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 can be spaced apart by a distance c, that is, a light mixing region is formed between the first diffusion film 102 and the light-emitting unit 1012, and the light emitted by the light-emitting unit 1012 can be mixed in the light mixing region so that the light emitted by the backlight module 100 is more uniform.

[0061] Optionally, such as Figure 6 As shown, the backlight module 100 also includes a blue light-transmitting film 103, a color conversion film 104, a light-diffusing film 105, a brightness enhancement film 106, and a second diffusion film 107 disposed on the side of the first diffusion film 102 away from the substrate 1011. The blue light-transmitting film 103, the color conversion film 104, the light-diffusing film 105, the brightness enhancement film 106, and the second diffusion film 107 can further process the light emitted by the light-emitting unit 1012, further improving the brightness and uniformity of the light emitted by the backlight module 100.

[0062] In some embodiments, the backlight module 100 includes a frame 108 and a back plate 110. The frame 108 is disposed within the back plate 110 and abuts against or is bonded to the side wall of the back plate 110. The frame 108 is at least partially higher than the upper surface of the back plate 110 for supporting the liquid crystal panel 200 and is bonded to the side of the liquid crystal panel 200 near the back film module. The lamp plate 101 is located within the frame 108 and is bonded to the side wall of the back plate 110 through the frame 108.

[0063] In this embodiment, the adhesive frame 108 is used to bond the backlight module 100 to the back plate 110, which supports and protects the backlight module 100. The adhesive frame 108 extends at least partially above the upper surface of the back plate 110, facilitating the bonding of the LCD panel 200 and providing support for the LCD panel 200. The LCD panel 200 is bonded to the back plate 110 using adhesive tape 109, which is U-shaped and adheres to both the top and bottom surfaces of the LCD panel 200 and the back plate 110, respectively.

[0064] Depend on Figure 6 As can be seen, the backlight module 100 is not completely located within the back plate 110, allowing the side of the frame 108 facing away from the LCD panel 200 to be bonded to the back plate 110, while the other side is bonded to the LCD panel 200. The frame 108 achieves both bonding of the backlight module 100 to the back plate 110 and bonding of the LCD panel 200 to the back plate 110, making the display device a whole. Furthermore, the bonding with the tape 109 further improves the connection reliability of the display device.

[0065] The LCD panel 200 is also provided with a first polarizer 300 and a second polarizer 400 on the top and bottom sides.

[0066] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0067] The various embodiments in this specification are described in a related manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0068] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention are included within the scope of protection of the present invention.

Claims

1. A light panel, characterized in that, The light panel includes: Substrate; Multiple light-emitting units are disposed on the substrate. The light-emitting units are arranged in columns along a first direction and in rows along a second direction on the substrate. The first direction and the second direction are perpendicular. The light-emitting units in adjacent columns are staggered. 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. 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. Here, m is a positive integer, and a and b satisfy: a < b, and ab / 2 ≤ 0.5 mm.

2. The lamp panel according to claim 1, characterized in that, The distance between the light-emitting unit in the penultimate row of the m-th column and the light-emitting unit in the penultimate row of the m-th column is a first distance a, and the distance between the light-emitting units in the penultimate row of the (m+1)-th column and the penultimate row of the (m+1)-th column is b, where a and b satisfy: a < b, and ab / 2 ≤ 0.5 mm.

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

4. The lamp panel according to claim 2 or 3, characterized in that, Along the first direction, the interval between the light-emitting unit in the first row of the m-th column and the light-emitting unit 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 unit in the last row of the m-th column and the light-emitting unit in the last row of the (m+1)-th column is less than or equal to 0.5 mm.

5. The lamp panel according to claim 4, characterized in that, The light-emitting units in the two alternating columns are symmetrically distributed with respect to the middle column. The spacing between each pair of adjacent rows between the second row of the m-th column and the penultimate row of the m-th column is the second spacing b. The spacing between each pair of adjacent rows in the (m+1)-th column is also the second spacing b.

6. The lamp panel according to claim 5, characterized in that, The region where the spacing between each pair of adjacent rows is the second spacing b is the inner region, and the center line connecting the four adjacent light-emitting units in two adjacent columns of the inner region forms a rhombus.

7. The lamp panel according to claim 5, characterized in that, The region where the spacing between each pair of adjacent rows is the second spacing b is the inner region, and the line connecting the centers of three adjacent light-emitting units in two adjacent columns of the inner region forms an equilateral triangle.

8. The lamp panel 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 includes the lamp panel according to any one of claims 1-8.

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

11. The display device according to claim 10, characterized in that, The light-emitting unit has an encapsulation layer on the side away from the substrate. The backlight module also includes a first diffusion film, which is disposed on the side of the encapsulation layer away from the substrate and is in direct contact with the encapsulation layer.

12. The display device according to claim 11, characterized in that, The backlight module further includes a blue light transmission film, a color conversion film, a light uniform film, a brightness enhancement film, and a second diffusion film disposed on the side of the first diffusion film away from the substrate.

13. The display device according to claim 10, characterized in that, The backlight module includes a frame and a back plate. The frame is disposed inside the back plate and abuts against or is bonded to the side wall of the back plate. The frame is at least partially higher than the upper surface of the back plate to support the liquid crystal panel and is bonded to the side of the liquid crystal panel near the backlight module. The lamp plate is located inside the frame and is bonded to the side wall of the back plate through the frame.

Images