Light panel, backlight module, and display device

Abstract

A light panel (100), a backlight module, and a display device. The light panel (100) comprises a plurality of partition units (10) arranged in an array, wherein each of the partition units (10) is a polygon, and each of the vertices of the polygon is provided with one light-emitting unit (11); and the plurality of partition units (10) comprise a plurality of first partition units (101), and the plurality of first partition units (101) located in two adjacent rows and / or two adjacent columns are arranged in a staggered manner.

Description

Light board, backlight module and display device

[0001] This application claims priority to Chinese patent application No. 202311723472.5 filed on December 13, 2023, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of display technology, and in particular to a light board, a backlight module and a display device. Background Art

[0003] Mini-LED (mini-light-emitting diode) technology holds great potential as a key development direction for next-generation display technology. The introduction of mid-range and high-end tablets and laptops based on Mini-LED technology has significantly improved the dark-state display quality of LCDs. While Mini-LED technology still faces challenges in thickness and response time compared to organic light-emitting diodes, it offers significant advantages in power consumption, contrast, brightness uniformity, and product reliability.

[0004] Improving the contrast ratio of Mini-LED products requires controlling the brightness of each sub-unit through active local dimming. Increasing the number of controllable sub-units or reducing their area can significantly improve the halo effect (haloing of light on a white background) in a black image. However, since the sub-units of current light panels are arranged in conventional rectangular or triangular arrays, it is difficult to make significant changes given the limited number of integrated circuit (IC) channels and LED lamps. This can lead to uneven brightness and shadowing on the display, resulting in a poor halo effect. Therefore, the rational and effective design and arrangement of the position of each LED lamp and the number of sub-units are crucial. SUMMARY OF THE INVENTION

[0005] The embodiments of the present application provide a light board, a backlight module and a display device, which can solve the technical problems that the partition units of the existing light board are distributed in a conventional rectangular or triangular array, resulting in uneven brightness and light shadow problems in the display screen, and poor Halo quality effect.

[0006] In a first aspect, an embodiment of the present application provides a light board comprising a plurality of partition units arranged in multiple rows / columns, each of the partition units being a polygon, and a light-emitting unit being provided on each vertex of the polygon; wherein the plurality of partition units comprise a plurality of first partition units, and the plurality of first partition units located in two adjacent rows and / or two adjacent columns are staggered.

[0007] In a second aspect, an embodiment of the present application provides a backlight module, comprising the above-mentioned light board; and

[0008] The optical film group is arranged on the light-emitting side of the lamp panel.

[0009] In a third aspect, an embodiment of the present application provides a display device, including:

[0010] display panel; and

[0011] The backlight module is arranged on the non-light-emitting side of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0013] FIG1 is a schematic diagram of the partitions of a light panel in the prior art;

[0014] FIG2 is a schematic diagram of a first partition of a light panel provided in an embodiment of the present application;

[0015] FIG3 is a schematic diagram of a second partition of a light panel provided in an embodiment of the present application;

[0016] FIG4 is a schematic diagram of a third partition of a light panel provided in an embodiment of the present application;

[0017] FIG5 is a schematic diagram of a fourth partition of a light panel provided in an embodiment of the present application;

[0018] FIG6 is a schematic diagram of a fifth partition of a light panel provided in an embodiment of the present application;

[0019] FIG7 is a sixth partition diagram of the light panel provided in an embodiment of the present application;

[0020] FIG8 is a circuit diagram of the light board in FIG7;

[0021] FIG9 is a schematic structural diagram of a backlight module provided in an embodiment of the present application;

[0022] FIG10 is a schematic structural diagram of a display device provided in an embodiment of the present application. Modes for Carrying Out the Invention

[0023] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0024] In the description of this application, it should be understood that the terms "length," "width," "thickness," "upper," "lower," and the like, indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0025] In the present application, unless otherwise clearly specified and limited, a first feature being "on" or "under" a second feature may include the first and second features being in direct contact, or the first and second features not being in direct contact but being in contact through another feature between them.

[0026] As an introduction to the embodiments of the present application, a light board is introduced. Please refer to FIG1 . The partition units of the light board are generally arranged in a conventional rectangular or triangular array. For example, the light board 100 'in FIG1 is arranged in a conventional rectangular array, and one partition unit 10 'includes four light-emitting units 11 ', that is, a four-light-one-zone design. Specifically, the light board 100 'in FIG1 includes a plurality of partition units 10 'arranged in multiple rows / columns, and each partition unit 10 'is a polygon, and a light-emitting unit 11 'is provided on each vertex of the polygon. Specifically, every four light-emitting units 11 'compose a partition unit 10 ' (e.g., each rectangular grid in FIG1 represents a partition unit 10 '), and each partition unit 10 'is controlled by a corresponding integrated circuit control channel, which is used to control the light-emitting unit 11 'in the corresponding partition unit 10 'to emit light. The multiple partition units 10' are also arranged in multiple rows and columns, with spacing between adjacent partition units 10'. Each partition unit 10' utilizes a different light-emitting unit 11'. The multiple partition units 10' are arranged at equal spacing in the row and column directions, and the multiple light-emitting units 11' are arranged at equal spacing in the row and column directions. It should be noted that the spacing in the row and column directions is limited by the inconsistent length and width of the light board 100', so each partition unit 10' generally has a rectangular shape with unequal sides.

[0027] For example, the light board 100' in Figure 1 includes 64 light-emitting units 11' arranged in an array, with a gap between two adjacent partition units 10', and the size of the gap is equivalent to the size of one partition unit 10'. Accordingly, the number of IC channels in the light board 100' in Figure 1 is 16.

[0028] It's understandable that when the target brightness is between multiple partitions 10', the light patterns between these partitions 10' may be irregular. For the driver algorithm, the closer the light pattern is to a circle, the easier it is to adjust the Halo lighting effect. As shown in Figure 1, taking three adjacent partitions 10' as an example, triangular area A' refers to the area enclosed by the lines connecting the three closest light-emitting units 11' within the three partitions 10', and triangular area B' refers to the area enclosed by the lines connecting the center points of the three partitions 10. The light pattern of the three partitions 10' is circular area C'. When the target brightness is within the range of triangular area A', the three adjacent partition units 10' (i.e., 12 light-emitting units) will become brighter. Each partition unit 10' acts as an independent circular light source and is distributed around triangle A' in the form of triangular area B'. The distance from the center point of each partition unit 10' to the center point O' of triangular area A' is not equal, and they are unevenly dispersed in the same semicircular area of ​​circular area C', resulting in lower energy on the weak side (lower right corner), making it more difficult to adjust the light effect, and easily leading to uneven brightness and light shadow problems on the display screen, resulting in poor display effect and Halo taste effect.

[0029] It should be noted that the partition units of the light board can also be arranged in a conventional triangular array. One partition unit includes 3 light-emitting units, that is, a 3-light-one-zone design, which is similar to the 4-light-one-zone design. The conventional triangular array arrangement is also difficult to adjust the light effect, which can easily lead to uneven brightness and light shadow problems on the display screen, and poor display effect and Halo taste effect.

[0030] In view of this, in order to reduce the difficulty of adjusting the light effect of the light board, improve the problem of uneven brightness and light shadow of the display screen, and enhance the display effect and Halo taste effect, the embodiment of the present application provides a light board 100, please refer to Figures 2 to 6, the light board 100 includes a plurality of partition units 10 arranged in an array, each of the partition units 10 is a polygon, and a light-emitting unit 11 is provided on each vertex of the polygon. The plurality of partition units 10 include a plurality of first partition units 101, and the plurality of the first partition units 101 located in two adjacent rows and / or two adjacent columns are staggered. By adopting the staggered arrangement of the first partition units 101 to change the light pattern distribution, the light pattern is significantly changed, closer to the circular light pattern distribution, and presents a smooth halo distribution, which is conducive to reducing the difficulty of adjusting the light effect of the light board 100, improving the problem of uneven brightness and light shadow of the display screen, and enhancing the display effect and Halo taste effect.

[0031] The embodiments of the present application provide a light board, a backlight module, and a display device. Detailed descriptions are provided below. It should be noted that the order in which the following embodiments are described does not limit the preferred order of the embodiments.

[0032] An embodiment of the present application provides a light board, comprising a plurality of partition units arranged in multiple rows / columns, each of the partition units being a polygon, and a light-emitting unit being provided on each vertex of the polygon; wherein the plurality of partition units comprises a plurality of first partition units, and the plurality of first partition units located in two adjacent rows and / or two adjacent columns are staggered.

[0033] According to the light board provided in the embodiment of the present application, two adjacent first partition units are arranged at intervals.

[0034] According to the light board provided in the embodiment of the present application, no partition unit is provided between two adjacent first partition units.

[0035] According to the light board provided by the embodiment of the present application, two adjacent first partition units located in different rows share one light-emitting unit, and two adjacent first partition units located in the same row do not share the light-emitting unit.

[0036] According to the light board provided in the embodiment of the present application, all the light-emitting units in each of the partition units are linked together, and the multiple partition units also include multiple second partition units. The second partition units are arranged between two adjacent first partition units located in the same row and / or the same column, and share an edge and two light-emitting units with the adjacent first partition units.

[0037] According to the light board provided in an embodiment of the present application, the light board further includes a plurality of partition groups, each of the partition groups includes three adjacent first partition units and a spacing area between the three first partition units, and the lightable area of ​​the partition group is a circular area;

[0038] For each of the partition groups, a line connecting a center point of the interval area and a center point of each of the first partition units is not located in a same semicircular area of ​​the circular area.

[0039] According to the light board provided in the embodiment of the present application, for each of the partition groups, the inner angles of the triangles formed by connecting the three center points of the three partition units in pairs are all less than 90 degrees.

[0040] According to the light board provided in the embodiment of the present application, the shape of each of the partition units includes any one of an equilateral triangle, a regular quadrilateral, a regular hexagon or other regular polygons.

[0041] In a second aspect, an embodiment of the present application provides a backlight module, comprising the above-mentioned light board; and

[0042] The optical film group is arranged on the light-emitting side of the lamp panel.

[0043] In a third aspect, an embodiment of the present application provides a display device, including:

[0044] display panel; and

[0045] The backlight module is arranged on the non-light-emitting side of the display panel.

[0046] Beneficial effects: In the lamp board, backlight module and display device provided in the embodiments of the present application, by staggering the plurality of first partition units located in two adjacent rows and / or two adjacent columns, the number of partitions of the lamp board can be increased or the light distribution can be changed, so that the light-emitting area projected by each partition unit is closer to the circular light distribution, which is beneficial to improving the uneven brightness and shadow problems of the display screen, and enhancing the display effect and Halo taste effect of the light-emitting unit in each partition unit; at the same time, compared with the conventional rectangular or triangular arrangement, the present application can achieve a staggered arrangement of the partition units by simply changing the wiring arrangement method without increasing the total number of light-emitting units used on the lamp board, which is beneficial to reducing the pressure of the arrangement space.

[0047] As shown in Figures 2 and 3, all the light-emitting units 11 within each partition unit 10 are linked together. The multiple partition units 10 also include multiple second partition units 102. The second partition units 102 are arranged between two adjacent first partition units 101 in the same row and / or column, and share a side and two light-emitting units 11 with the adjacent first partition units 101. In other words, the multiple partition units 10 are arranged in a crawler-like manner, with zero spacing between adjacent partition units 10.

[0048] As shown in FIG2 , compared to the structure in FIG1 , the embodiment of the present application still maintains the arrangement of four lights in one zone, that is, every four adjacent light-emitting units 11 form a partition unit 10 for performing backlight dynamic statistics. The light-emitting units 11 within the partition unit 10 are arranged in a rectangular shape, that is, four light-emitting units 11 distributed in a rectangular shape constitute a partition unit 10. Specifically, when one of the partition units 10 is lit, the other partition units 10 are dimmed.

[0049] However, the difference is that the embodiment of the present application sets the spacing between two adjacent partition units 10 to 0. Specifically, the two adjacent partition units 10 are set close together and share a common edge, so that the multiple partition units 10 on the entire light board 100 are arranged in a crawler-like propulsion. Since the multiple partition units 10 on the light board 100 in the embodiment of the present application are arranged more closely, the number of partitions of the partition unit 10 can be increased. For example, the embodiment of the present application still takes the total number of the light-emitting units 11 on the light board 100 as 64 as an example. With the above design, the number of partition units 10 on the light board 100 increases from 16 in Figure 1 to 49, while the total number of the light-emitting units 11 remains 64 and has not changed.

[0050] Since increasing the number of controllable partitions is positively correlated with improving the Halo taste effect, the partitioning method of the light board 100 provided in the embodiment of the present application can increase the number of partitions to a certain extent without increasing the number of the light-emitting units 11, thereby reducing the difficulty of adjusting the light effect of the light board 100, improving the uneven brightness and light shadow problems of the display screen, and enhancing the display effect and Halo taste effect.

[0051] Specifically, in the embodiment of the present application, the light-emitting unit 11 can be an effective light-emitting part in a light-emitting diode (LED) chip. The present application does not limit the size of the LED chip. Preferably, the LED chip is an M-LED chip with a size of less than 200 microns.

[0052] It should be noted that Figure 2 only illustrates the center position of the light-emitting unit 11 and does not represent the shape and angle of the light-emitting unit 11 in actual application, and this application does not specifically limit the shape and angle of the light-emitting unit 11. For example, the shape of the light-emitting unit 11 may include, but is not limited to, a circle, an ellipse, a rectangle, or other polygonal or irregular shape, and is not limited here.

[0053] Specifically, in the embodiment of the present application, the light emitting units 11 located in two adjacent rows or two adjacent columns are arranged opposite each other.

[0054] Specifically, in the embodiment of the present application, the partition unit 10 may be in the shape of a square.

[0055] It should be noted that the total number of the light-emitting units 11 on the light board 100 in the embodiment of the present application is not limited to 64, and can also be other numbers, which is not limited in the embodiment of the present application.

[0056] Correspondingly, the number of IC channels in the lamp board 100 in FIG. 2 is 49, which is an increase compared to FIG. 1 .

[0057] In another embodiment, as shown in FIG3 , the partition units 10 on the light board 100 may also be arranged in a triangular pattern, i.e., a three-light-per-zone arrangement. Specifically, each three adjacent light-emitting units 11 form a partition unit 10 , and the partition unit 10 is triangular in shape. The light-emitting units 11 within the partition unit 10 are arranged in a triangular pattern, i.e., three light-emitting units 11 arranged in a triangular pattern constitute one partition unit 10 .

[0058] It can be understood that, similar to FIG2 , the embodiment of the present application also sets a plurality of second partition units 102, and sets the spacing between two adjacent partition units 10 to 0. Specifically, the two adjacent partition units 10 are set close together and share a side, so that the plurality of partition units 10 on the entire light board 100 are arranged in a crawler-like manner. Since the plurality of partition units 10 on the light board 100 in the embodiment of the present application are arranged more closely, the number of partition units 10 can be increased. At the same time, compared with the 4-lamp-one-zone arrangement in FIG2 , FIG3 of the application adopts a 3-lamp-one-zone arrangement. Since the number of the light-emitting units 11 in each partition unit 10 is reduced, the number of partition units 10 can be further increased while the total number of the light-emitting units 11 remains unchanged, thereby further increasing the number of partitions of the light board 100, which is conducive to further reducing the difficulty of adjusting the light effect of the light board 100, improving the uneven brightness and light shadow problems of the display screen, and enhancing the display effect and Halo taste effect.

[0059] For example, the embodiment of the present application still takes the total number of the light-emitting units 11 on the light board 100 as 64 as an example. With the above design, the number of the partition units 10 on the light board 100 increases from 49 in FIG. 2 to 104. Moreover, compared with the conventional triangular arrangement, the number of the partition units 10 in the embodiment of the present application increases from 20 to 104. At the same time, the total number of the light-emitting units 11 remains 64 and has not changed. Therefore, the partitioning method of the light board 100 provided in the embodiment of the present application can further reduce the difficulty of adjusting the light effect of the light board 100 without increasing the total number of the light-emitting units 11.

[0060] In addition, since there is a negative correlation between the partition area and the improvement of the Halo quality effect, that is, the larger the partition area, the worse the effect of improving the Halo quality effect, and the smaller the partition area, the better the effect of improving the Halo quality effect. It can be understood that in the embodiment of the present application, when the spacing between each two adjacent light-emitting units 11 remains unchanged, since the area of ​​the triangle is smaller than the area of ​​the rectangle, the partition area of ​​the 3-lamp-one-zone arrangement is significantly smaller than the 4-lamp-one-zone arrangement, which is conducive to further reducing the difficulty of adjusting the light effect of the light board 100, improving the uneven brightness and light shadow problems of the display screen, and improving the display effect and Halo quality effect.

[0061] Specifically, in the embodiment of the present application, the partition unit 10 may be in the shape of an equilateral triangle.

[0062] Correspondingly, the number of IC channels in the lamp board 100 in FIG3 is 104, which is an increase compared to FIG2 and FIG1.

[0063] It should be noted that, in addition to the square and regular triangle in the above embodiments, the shape of each partition unit 10 can also be a regular hexagon or any other regular polygon.

[0064] Please refer to Figures 4 and 5. Compared with Figure 2, Figure 4 still maintains the 4-lamp-per-zone arrangement; Figure 5 still maintains the 3-lamp-per-zone arrangement compared with Figure 3. However, the difference is that, compared with Figure 2, Figure 4 and Figure 3, two adjacent first partition units 101 are spaced apart.

[0065] Specifically, no partition unit 10 is provided between two adjacent first partition units 101 , that is, the two adjacent first partition units 101 do not share the light-emitting unit 11 , and no second partition unit 102 is provided.

[0066] As described above, when the target bright area is located between multiple partition units 10, there is an irregular arrangement of light patterns between the partition units 10. However, for the driving algorithm, the closer the light pattern is to a circle and the smoother the halo distribution is, the easier it is to adjust the Halo light effect. The embodiment of the present application changes the light pattern distribution by adopting a staggered arrangement of the partition units 10, causing the light pattern to change significantly and become closer to a circular light distribution. This helps to reduce the difficulty of adjusting the light effect of the light board 100, improve the uneven brightness and shadow problems of the display screen, and enhance the display effect and Halo taste effect.

[0067] Specifically, in the embodiment of the present application, the light board 100 also includes a plurality of partition groups, each of the partition groups includes three adjacently arranged partition units 10 and a spacing area 12 located between the three partition units 10, and the illuminated area of ​​the partition group is a circular area; for each of the partition groups, the line connecting the center point of the spacing area 12 and the center point of each of the partition units 10 is not located in the same semicircular area of ​​the circular area. Among them, the spacing area 12 is a triangular area formed by connecting two of the three light-emitting units 11 that are closest to the three partition units 10. It can be understood that compared with FIG1 , the line connecting the center point of each partition unit 10 to the center point of the spacing area 12 is unevenly distributed in the same semicircular area of ​​the circular area, so that the distribution of the above-mentioned lines in the circular area is more uniform, which is conducive to reducing the difficulty of adjusting the light effect of the light board 100.

[0068] Specifically, in the embodiment of the present application, for each partition group, the inner angle of the triangle formed by connecting the three center points of the three partition units 10 in pairs is less than 90 degrees. The reason for this setting is that the larger the inner angle of the triangle formed by connecting the three center points of the three partition units 10 in pairs, the more difficult it is to adjust the lighting effect of the light board 100, especially when the inner angle of the triangle is a right angle or an obtuse angle, the difficulty of adjusting the lighting effect is poor. Therefore, this embodiment controls the inner angle of the triangle to be less than 90 degrees, which is beneficial to reducing the difficulty of adjusting the lighting effect of the light board 100.

[0069] In one embodiment, as shown in FIG4 , compared to FIG1 , this embodiment still maintains the arrangement of 4 lights in one zone, but the difference is that the multiple partition units 10 located in two adjacent rows and / or two adjacent columns are staggered. Similarly, still taking three adjacent partition units 10 as an example, the triangular area A refers to the area surrounded by the lines connecting the three light-emitting units 11 closest to each other in the three partition units 10, that is, the spacing area 12, and the triangular area B refers to the area surrounded by the lines connecting the center points of the three partition units 10. The light pattern of the three partition units 10 is a circular area C. Among them, although the distance from the center point of each partition unit 10 to the center point O of the triangular area A is still not exactly the same, compared to FIG1 , the difference in the distance from the center point of each partition unit 10 to the center point O of the triangular area A is reduced, that is, the distance from the center point of each partition unit 10 to the line connecting the center point O of the triangular area A is almost equal, which helps to reduce the difficulty of adjusting the light effect. At the same time, the line connecting the center point O of the triangular area A and the center point of each of the partition units 10 is not located in the same semicircular area of ​​the circular area, and the distribution is more uniform, so that the picture can transition more smoothly when changing, and the difficulty of adjusting the light effect is lower, making the generated image more delicate, uniform and stable, and greatly reducing the shadow phenomenon.

[0070] Specifically, in the embodiment of the present application, the partition unit 10 may be in the shape of a square.

[0071] Correspondingly, the embodiment of the present application still takes the total number of the light-emitting units 11 on the lamp board 100 as 64 as an example. The number of IC channels in the lamp board 100 in the embodiment of the present application is 16. Compared with Figure 1, the number of IC channels remains unchanged, while compared with Figures 2 and 3, the number of IC channels is greatly reduced.

[0072] In one embodiment, as shown in FIG5 , the difference from FIG4 is that this embodiment adopts a 3-light-per-zone arrangement. In this embodiment of the present application, the plurality of partition units 10 located in adjacent rows and / or adjacent columns are staggered. The center point of each partition unit 10 is at the same distance from the center point O of the triangular area A, and the line connecting the center point O of the spacing area 12 and the center point of each partition unit 10 is divided into three equal parts and located within the circular area, making the connection distribution more uniform, enabling a smoother transition when the picture changes, further reducing the difficulty of adjusting the light effect, making the generated image more delicate, uniform and stable, and greatly reducing the shadow phenomenon.

[0073] Specifically, in the embodiment of the present application, the partition unit 10 may be in the shape of an equilateral triangle.

[0074] Correspondingly, the total number of the light-emitting units 11 on the lamp board 100 in the embodiment of the present application is 60. Compared with Figures 2 to 4, the total number of light-emitting units 11 is reduced. The number of IC channels in the lamp board 100 in the embodiment of the present application is 20. Compared with Figure 1, the number of IC channels is slightly increased, and compared with Figures 2 and 3, the number of IC channels is greatly reduced.

[0075] In summary, the light board 100 in Figures 2 and 3 reduces the difficulty of adjusting the light effect of the light board 100 by arranging the multiple partition units 10 in a crawler-like manner to increase the number of partitions of the light board 100, thereby improving the display effect and Halo taste effect. The difference is that the light board 100 in Figures 4 and 5 changes the light pattern distribution by staggering the multiple partition units 10 located in adjacent rows and / or adjacent columns, so that the light-emitting area projected by each partition unit 10 is closer to a near-circular light pattern distribution, thereby reducing the difficulty of adjusting the light effect of the light board 100, thereby improving the display effect and Halo taste effect. It can be seen that the above two methods can both improve and improve the uneven brightness and light shadow problems of the display screen.

[0076] However, it should be noted that the number of IC channels on the lamp board 100 in Figure 1 is 16, the number of IC channels on the lamp board 100 in Figure 2 is 49, the number of IC channels on the lamp board 100 in Figure 3 is 104, and the number of IC channels on the lamp board 100 in Figure 4 is 16. This shows that compared to Figure 1, the number of IC channels on the lamp board 100 in Figures 2 and 3 has increased, while the number of IC channels on the lamp board 100 in Figures 3 and 4 remains unchanged. A greater number of IC channels increases the complexity of the driver board design for the lamp board 100, leading to higher costs. Therefore, in order to improve the display effect and Halo taste effect without increasing the complexity of the driver board, the lamp board 100 of the present application preferably adopts the partition arrangement method shown in Figures 4 and 5. Without increasing the total number of light-emitting units 11 used on the lamp board 100, the number of IC channels is small, and the staggered arrangement of the partition units 10 can be achieved by simply changing the wiring arrangement method, which is beneficial to reducing the layout space pressure and lowering the design requirements of the driver board.

[0077] In one embodiment, as shown in FIG6 , FIG6 differs from FIG4 in that two adjacent first partition units 101 located in different rows share one light-emitting unit 11 , and two adjacent first partition units 101 located in the same row do not share the light-emitting unit 11 .

[0078] As shown in Table 1 below, Table 1 is a comparison diagram of the uniformity of the light panels provided in the embodiment of the present application using different partition arrangements. For example, the following table shows the areas when the partition arrangements in Figures 1, 4 and 5 are single / double / triple partitions, respectively, wherein the distances between any two adjacent light-emitting units 11 are equal, and the shape of each light-emitting unit 11 is a regular polygon with a side length of 3. From this table, it can be seen that for any of the single / double / triple partitions, the area when the partition arrangement shown in Figure 5 is adopted is smaller than the area when the partition arrangement in Figures 1 and 4 is adopted. Since the smaller the area, the closer the light distribution is to a circle, the better the Halo effect. Therefore, the uniformity when the partition arrangement shown in Figure 5 is adopted is better than the uniformity when the partition arrangement in Figures 1 and 4 is adopted, which is more conducive to improving the display effect and Halo taste effect, thereby being able to improve the uneven brightness and shadow problems of the display screen.

[0079] Table 1

[0080] Figure 1 (Conventional four-light one-zone arrangement) Figure 4 (four-light one-zone staggered arrangement) Figure 5 (three-light one-zone staggered arrangement) Single zone area 993.9 Double zone area 272719.5 Three zone area 45 / 45 / 63 45 / 63 / 63 35 / 35 / 39

[0081] Please refer to Figures 7 and 8. The lamp board 100 also includes a driving circuit, which is used to drive the multiple partition units on the lamp board to emit light. In order to clearly describe the technical solution for the light board to emit light in this application, this embodiment takes the lamp board in Figure 7 with a 4-lamp-one-zone arrangement as an example. For example, the lamp board in Figure 7 includes 16 light-emitting units, namely light-emitting unit 1, light-emitting unit 2, light-emitting unit 3...light-emitting unit 16, light-emitting units 1-4 are located in the first row and arranged in sequence, light-emitting units 5-8 are located in the second row and arranged in sequence, light-emitting units 9-12 are located in the third row and arranged in sequence, and light-emitting units 13-16 are located in the fourth row and arranged in sequence. Among them, the light board adopts a crawler-type partition arrangement similar to that in Figure 2, so that four adjacent light-emitting units constitute a partition unit. Specifically, light-emitting units 1 / 2 / 5 / 6 constitute partition unit 1, light-emitting units 2 / 3 / 6 / 7 constitute partition unit 2, light-emitting units 3 / 4 / 7 / 8 constitute partition unit 3, light-emitting units 5 / 6 / 9 / 10 constitute partition unit 4, light-emitting units 6 / 7 / 10 / 11 constitute partition unit 5, light-emitting units 7 / 8 / 11 / 12 constitute partition unit 6, light-emitting units 9 / 10 / 13 / 14 constitute partition unit 7, light-emitting units 10 / 11 / 14 / 15 constitute partition unit 8, and light-emitting units 11 / 12 / 15 / 16 constitute partition unit 9.

[0082] The driver circuit includes an input terminal and an output terminal. The input terminal is used to electrically connect to the input signal, and the output terminal is used to output the signal to each partition unit. The output terminal includes output sub-terminals K1-K9, which correspond to partition units 1-9 respectively. The electrical connection relationship between the light-emitting units of the driver circuit is explained below.

[0083] The input terminal LEDA is electrically connected to the first terminal of the light emitting unit 1, the first terminal of the light emitting unit 9, the first terminal of the light emitting unit 11 and the first terminal of the light emitting unit 3;

[0084] The second end of the light-emitting unit 1 is electrically connected to the first end of the light-emitting unit 5, the second end of the light-emitting unit 5 is electrically connected to the first end of the light-emitting unit 2, and the second end of the light-emitting unit 2 is electrically connected to the first end of the light-emitting unit 6;

[0085] The second end of the light emitting unit 9 is connected between the second end of the light emitting unit 1 and the first end of the light emitting unit 5;

[0086] The first end of the light emitting unit 13 is connected to the second end of the light emitting unit 9 , and the second end of the light emitting unit 13 is connected between the second end of the light emitting unit 5 and the first end of the light emitting unit 2 , as well as the first end of the light emitting unit 10 ;

[0087] The second end of the light emitting unit 10 is connected to the second end of the light emitting unit 2, the first end of the light emitting unit 6, and the first end of the light emitting unit 14;

[0088] The first end of the light emitting unit 15 is connected to the second end of the light emitting unit 11 , and the second end of the light emitting unit 15 is connected to the second end of the light emitting unit 13 ;

[0089] The second end of the light emitting unit 3 is electrically connected to the first end of the light emitting unit 7, the second end of the light emitting unit 7 is electrically connected to the first end of the light emitting unit 4, and the second end of the light emitting unit 4 is electrically connected to the first end of the light emitting unit 8;

[0090] The second end of the light emitting unit 11 is connected between the second end of the light emitting unit 3 and the first end of the light emitting unit 7;

[0091] The first end of the light emitting unit 12 is connected between the second end of the light emitting unit 7 and the first end of the light emitting unit 4 , and the second end of the light emitting unit 12 is connected between the second end of the light emitting unit 4 and the first end of the light emitting unit 8 ;

[0092] The first end of the light emitting unit 16 is connected to the second end of the light emitting unit 12;

[0093] The second end of the light emitting unit 6 and the second end of the light emitting unit 14 are connected to K2, K1, K4, K7, K8 and K5, the second end of the light emitting unit 8 is connected to K3 and K6, and the second end of the light emitting unit 16 is connected to K9.

[0094] Correspondingly, as shown in FIG9 , an embodiment of the present application further provides a backlight module, which can be a direct-lit backlight module. The backlight module includes the light board 100, backboard 110, light guide plate 120, and optical film group 130 in the above embodiment. The backboard 110 includes a bottom plate 1101 and a side plate 1102 connected to the bottom plate 1101 and extending upward along the bottom plate 1101. The bottom plate 1101 and the side plate 1102 enclose a storage space, and the light board 100, the backboard 110, the light guide plate 120, and the optical film group 130 are located in the storage space. The light board 100 is located on the bottom plate 1101, the light guide plate 120 is located on the light-emitting side of the light board 100, and the optical film group 130 is located on the side of the light guide plate 120 away from the light board 100. The other film layer structures of the backlight module may refer to the film layer structures of existing backlight modules and are not specifically limited here.

[0095] Correspondingly, as shown in FIG10 , an embodiment of the present application further provides a display device, comprising a display panel 2 and the backlight module 1 of the above embodiment, wherein the backlight module 1 is located on the non-light-emitting side of the display panel 2 to provide backlight for the display panel 2. The display panel 2 may be a liquid crystal display panel. Specifically, the display panel 2 comprises an array substrate and a color filter substrate disposed opposite to each other, and a liquid crystal layer located between the array substrate and the color filter substrate. The liquid crystal layer comprises a plurality of liquid crystal molecules. Voltage is applied to the array substrate and the color filter substrate to generate a voltage difference between the two substrates that drives the liquid crystal molecules to deflect.

[0096] Beneficial effects: In the lamp board, backlight module and display device provided in the embodiments of the present application, by staggering the plurality of first partition units located in two adjacent rows and / or two adjacent columns, the number of partitions of the lamp board can be increased or the light distribution can be changed, so that the light-emitting area projected by each partition unit is closer to the circular light distribution, which is beneficial to improving the uneven brightness and shadow problems of the display screen, and enhancing the display effect and Halo taste effect of the light-emitting unit in each partition unit; at the same time, compared with the conventional rectangular or triangular arrangement, the present application can achieve a staggered arrangement of the partition units by simply changing the wiring arrangement method without increasing the total number of light-emitting units used on the lamp board, which is beneficial to reducing the pressure of the arrangement space.

[0097] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0098] The above is a detailed introduction to a lamp board, a backlight module and a display device provided in the embodiments of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A light panel, comprising a plurality of partition units arranged in multiple rows / columns, each of the partition units being a polygon, and a light-emitting unit being disposed on each vertex of the polygon; wherein: The plurality of partition units include a plurality of first partition units, and the plurality of first partition units located in two adjacent rows and / or two adjacent columns are arranged in a staggered manner.

2. The light board according to claim 1, wherein: Two adjacent first partition units are arranged at an interval.

3. The light board according to claim 1, wherein: No partition unit is arranged between two adjacent first partition units.

4. The light board according to claim 1, wherein: Two adjacent first partition units located in different rows share one light-emitting unit, and two adjacent first partition units located in the same row do not share the light-emitting unit.

5. The light board according to claim 4, wherein: All the light-emitting units in each of the partition units are linked together, and the multiple partition units also include multiple second partition units, which are arranged between two adjacent first partition units located in the same row and / or the same column, and share an edge and two light-emitting units with the adjacent first partition units.

6. The light panel according to claim 1, wherein: The light panel further comprises a plurality of partition groups, each of the partition groups comprises three adjacently arranged first partition units and a spacing area between the three first partition units, and the lightable area of ​​the partition group is a circular area; For each of the partition groups, a line connecting a center point of the interval area and a center point of each of the first partition units is not located in a same semicircular area of ​​the circular area.

7. The light board according to claim 6, wherein: For each of the partition groups, the inner angles of the triangles formed by connecting two of the three center points of the three partition units are all less than 90 degrees.

8. The light panel according to claim 1, wherein: The shape of each of the partition units includes any one of a regular triangle, a regular quadrilateral, a regular hexagon or other regular polygons.

9. A backlight module, comprising a light board, wherein the light board comprises a plurality of partition units arranged in multiple rows / columns, each of the partition units is a polygon, and a light-emitting unit is disposed on each vertex of the polygon; wherein: The multiple partition units include multiple first partition units, and the multiple first partition units located in two adjacent rows and / or two adjacent columns are staggered; as well as The optical film group is arranged on the light emitting side of the lamp panel.

10. The backlight module according to claim 9, wherein: Two adjacent first partition units are arranged at an interval.

11. The backlight module according to claim 9, wherein: No partition unit is arranged between two adjacent first partition units.

12. The backlight module according to claim 9, wherein: Two adjacent first partition units located in different rows share one light-emitting unit, and two adjacent first partition units located in the same row do not share the light-emitting unit.

13. The backlight module according to claim 12, wherein: All the light-emitting units in each of the partition units are linked together, and the multiple partition units also include multiple second partition units, which are arranged between two adjacent first partition units located in the same row and / or the same column, and share an edge and two light-emitting units with the adjacent first partition units.

14. The backlight module according to claim 9, wherein: The light panel further comprises a plurality of partition groups, each of the partition groups comprises three adjacently arranged first partition units and a spacing area between the three first partition units, and the lightable area of ​​the partition group is a circular area; For each of the partition groups, a line connecting a center point of the interval area and a center point of each of the first partition units is not located in a same semicircular area of ​​the circular area.

15. The backlight module according to claim 14, wherein: For each of the partition groups, the inner angles of the triangles formed by connecting two of the three center points of the three partition units are all less than 90 degrees.

16. A display device, comprising: Display panel; as well as A backlight module, wherein the backlight module is arranged on the non-light-emitting side of the display panel, and the backlight module includes a light board and an optical film group arranged on the light-emitting side of the light board; wherein the light board includes a plurality of partition units arranged in multiple rows / columns, each of the partition units is a polygon, and a light-emitting unit is arranged on each vertex of the polygon; wherein the plurality of partition units include a plurality of first partition units, and the plurality of the first partition units located in two adjacent rows and / or two adjacent columns are staggeredly arranged. The display device according to claim 16 , wherein two adjacent first partition units are arranged at an interval.

18. The display device according to claim 16, wherein: No partition unit is arranged between two adjacent first partition units.

19. The display device according to claim 16, wherein: Two adjacent first partition units located in different rows share one light-emitting unit, and two adjacent first partition units located in the same row do not share the light-emitting unit.

20. The display device according to claim 19, wherein: All the light-emitting units in each of the partition units are linked together, and the multiple partition units also include multiple second partition units, which are arranged between two adjacent first partition units located in the same row and / or the same column, and share an edge and two light-emitting units with the adjacent first partition units.

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