Lighting panel, backlight module and display device

Abstract

The application discloses a lamp panel, a backlight module and a display device. The lamp panel comprises a plurality of partition units arranged in an array. Each partition unit is a polygon. A light emitting unit is arranged on each vertex of the polygon. The plurality of partition units comprise a plurality of first partition units. By staggered arrangement of the first partition units in adjacent two rows and / or adjacent two columns, the number of partition units of the lamp panel can be increased, and the light distribution can be changed. The display picture brightness unevenness and the lamp shadow problem can be improved, and the display effect and the Halo taste effect are improved.

Description

Technical Field

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

[0002] Mini light-emitting diode (Mini LED) technology has great potential to become one of the next-generation display technologies. With the launch of mid-to-high-end tablets and laptops based on Mini-LED technology, the dark display effect of LCD products has been greatly improved. Compared with organic light-emitting diode technology, although MiniLED technology still needs improvement in thickness and response time, it has significant advantages in power consumption, contrast ratio, brightness uniformity, and product reliability.

[0003] Improving the contrast of Mini-LED products requires active local dimming to control the brightness of each zone unit. Increasing the number of controllable zones or reducing the zone area significantly helps improve the Halo effect (the halo effect in a black background with white highlights). However, since the current LED panels use conventional rectangular or triangular arrays for their zone units, it is difficult to make significant changes given the limited number of integrated circuit (IC) channels and LEDs. This often leads to uneven brightness and shadows in the displayed image, resulting in a poor Halo effect. Therefore, the rational and effective design and arrangement of the position of each LED and the number of zones is crucial. Summary of the Invention

[0004] This invention provides a lamp panel, a backlight module, and a display device, which can solve the technical problem that existing lamp panels use conventional rectangular or triangular arrays for their partitioning units, which easily leads to uneven brightness and shadows in the displayed image, resulting in poor Halo quality.

[0005] This invention provides a light panel comprising multiple partition units arranged in multiple rows / columns, each partition unit being a polygon, with a light-emitting unit disposed at each vertex of the polygon; wherein the multiple partition units include multiple first partition units, and the multiple first partition units located in adjacent rows and / or adjacent columns are staggered.

[0006] According to the lamp panel provided in the embodiment of the present invention, two adjacent first partition units are arranged at intervals.

[0007] According to the lamp panel provided in the embodiment of the present invention, no partition unit is provided between two adjacent first partition units.

[0008] According to the lamp panel provided in the embodiment of the present invention, 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.

[0009] According to the lamp panel provided in the embodiment of the present invention, all the light-emitting units in each partition unit are linked together. The plurality of partition units further include a plurality of second partition units. The second partition units are disposed between two adjacent first partition units located in the same row and / or the same column, and share a side and two light-emitting units with the adjacent first partition units.

[0010] According to the lamp panel provided in the embodiment of the present invention, the lamp panel further includes a plurality of partition groups, each partition group including three adjacent first partition units and an interval region located between the three first partition units;

[0011] In each of the partition groups, the line connecting the center point of the interval region and the center point of each of the first partition units is located within the same semicircle of the circular region.

[0012] According to the lamp panel provided in the embodiment of the present invention, for each of the partition groups, the interior angles of the triangles formed by connecting the three center points of the three partition units in pairs are all less than 90 degrees.

[0013] According to the light panel provided in the embodiment of the present invention, the shape of each partition unit includes any one of an equilateral triangle, a regular quadrilateral, a regular hexagon, or other regular polygons.

[0014] This invention provides a backlight module, including the aforementioned lamp board; and

[0015] An optical film assembly is disposed on the light-emitting side of the lamp panel.

[0016] This invention provides a display device, comprising:

[0017] Display panel; and

[0018] The aforementioned backlight module is disposed on the non-light-emitting side of the display panel.

[0019] Beneficial effects: In the lamp board, backlight module, and display device provided in the embodiments of the present invention, by staggering the arrangement of multiple 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 pattern distribution can be changed, so that the light-emitting area projected by each partition unit is closer to the circular light pattern distribution, which is beneficial to improving the uneven brightness and shadow problems of the display screen, and improving the display effect of the light-emitting units in each partition unit and the Halo effect; at the same time, compared with the conventional rectangular or triangular arrangement method used in the prior art, the present invention can achieve staggered arrangement of partition units by simply changing the wiring arrangement 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. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the partitioning of a lamp panel in the prior art;

[0022] Figure 2 This is a schematic diagram of the first type of partitioning of the lamp panel provided in an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of a second type of partitioning of the lamp panel provided in an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the third partition of the lamp panel provided in an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the fourth partition of the lamp panel provided in an embodiment of the present invention;

[0026] Figure 6 A schematic diagram of the fifth partition of the lamp panel provided in the embodiments of this application;

[0027] Figure 7 A schematic diagram of the sixth partition of the lamp panel provided in an embodiment of the present invention;

[0028] Figure 8 for Figure 7 The circuit diagram of the lamp board in the middle;

[0029] Figure 9 This is a schematic diagram of the backlight module provided in an embodiment of this application;

[0030] Figure 10This is a schematic diagram of the structure of the display device provided in the embodiments of this application. Detailed Implementation

[0031] 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 a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0032] In the description of this invention, it should be understood that the terms "length," "width," "thickness," "upper," "lower," etc., indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] In this invention, unless otherwise expressly specified and limited, the first feature "above" or "below" the second feature may include direct contact between the first and second features, or contact between the first and second features not in direct contact but through another feature between them.

[0034] This invention provides a lamp panel, a backlight module, and a display device. These are described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments.

[0035] Please see Figure 1 , Figure 1 This is a schematic diagram of the partitioning of a lamp panel in the prior art. The partitioning units of a lamp panel in the prior art are generally arranged in a conventional rectangular or triangular array. For example, Figure 1 The light panel 100' adopts a conventional rectangular array arrangement, with each zone unit 10 including 4 light-emitting units 11', i.e., a 4-light-per-zone design. Specifically, Figure 1 The light panel 100' comprises multiple partition units 10' arranged in multiple rows / columns. Each partition unit 10 is a polygon, and each vertex of the polygon is provided with a light-emitting unit 11'. Specifically, every four light-emitting units 11' form one partition unit 10' (e.g., Figure 1Each rectangular square in the diagram represents a partition unit 10', and each partition unit 10' is controlled by a corresponding integrated circuit control channel to control the light-emitting unit 11' within that partition unit 10' to emit light. Multiple partition units 10' are arranged in multiple rows / columns, with intervals between adjacent partition units 10, and each partition unit 10 uses a different light-emitting unit 11'. The multiple partition units 10' are arranged at equal intervals in both the row and column directions, and the multiple light-emitting units 11' are also arranged at equal intervals in both 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 dimensions of the lamp panel 100', and the shape of each partition unit 10' is generally a rectangle with two sides of unequal length.

[0036] For example, Figure 1 The light panel 100' includes 64 light-emitting units 11' arranged in an array, with a gap between adjacent partition units 10, and the size of this gap is equivalent to the size of one partition unit 10. Accordingly, Figure 1 The number of IC channels in the 100' light board is 16.

[0037] It is understandable that when the target brightness is located between multiple partition units 10, the light patterns between the partition units 10 are irregularly arranged. For the driving algorithm, the closer the light pattern is to a circle, the easier it is to adjust the Halo lighting effect. Figure 1 As shown, taking three adjacent partition units 10' as an example, triangular region A' refers to the area enclosed by the lines connecting the three closest light-emitting units 11' in the three partition units 10', triangular region B' refers to the area enclosed by the lines connecting the center points of the three partition units 10', and the light pattern of the three partition units 10' is a circular region C'. When the target brightness is within the range of triangular region A', the three adjacent partition units 10' (i.e., 12 light-emitting units) will brighten. Each partition unit 10' acts as an independent circular light source, distributed around triangle A' in the form of triangular region B'. The distance from the center point of each partition unit 10' to the center point O' of triangle A' is not equal, and they are unevenly distributed within the same semicircular area of ​​circular region C'. This results in lower energy on the weaker side, making it more difficult to adjust the light effect, easily leading to uneven brightness and shadow problems in the display screen, and poor display effect and Halo effect.

[0038] It should be noted that the partitioning units of the lamp panel in the existing technology can also adopt a conventional triangular array arrangement. One partitioning unit includes 3 light-emitting units, that is, a 3-lamp-per-zone design. Similar to a 4-lamp-per-zone design, the conventional triangular array arrangement makes it more difficult to adjust the light effect, which can easily lead to uneven brightness and shadow problems in the display screen, resulting in poor display effect and Halo taste effect.

[0039] In view of this, in order to reduce the difficulty of adjusting the light effect of the light panel, improve the uneven brightness and shadow problems of the displayed image, and enhance the display effect and Halo aesthetic, this embodiment of the invention provides a light panel 100. Please refer to [link / reference]. Figures 2-6 The light panel 100 includes multiple partition units 10 arranged in an array. Each partition unit 10 is a polygon, and a light-emitting unit 11 is disposed at each vertex of the polygon. The multiple partition units 10 include multiple first partition units 101, which are staggered in adjacent rows and / or adjacent columns. By adopting a staggered arrangement of the first partition units 101, the light pattern distribution is changed, resulting in a significant change in the light pattern, which is closer to a circular light pattern distribution and presents a smooth halo distribution. This helps to reduce the difficulty of adjusting the light effect of the light panel 100, improves the uneven brightness and shadow problems of the displayed image, and enhances the display effect and Halo aesthetic.

[0040] like Figure 2 and Figure 3 As shown, all the light-emitting units 11 within each partition unit 10 are linked. The plurality of partition units 10 also include a plurality of second partition units 102. The second partition units 102 are disposed between two adjacent first partition units 101 located in the same row and / or the same column, and share an edge and two light-emitting units 11 with the adjacent first partition units 101. That is, the plurality of partition units 10 are arranged in a track-like pattern, and the spacing between two adjacent partition units 10 is 0.

[0041] like Figure 2 As shown, compared to Figure 1 In this embodiment of the invention, the arrangement of four lights per zone remains unchanged. Specifically, every four adjacent light-emitting units 11 form a partition unit 10 for dynamic backlight statistics. The number of partition units 10 is one-quarter of the total number of light-emitting units 11. The light-emitting units 11 within each partition unit 10 are arranged in a rectangular pattern; that is, four rectangularly distributed light-emitting units 11 constitute one partition unit 10. Specifically, when one partition unit 10 is lit, all other partition units 10 dim.

[0042] However, unlike other embodiments, this invention sets the spacing between two adjacent partition units 10 to 0. Specifically, two adjacent partition units 10 are arranged close together, sharing a single edge, so that the multiple partition units 10 on the entire lamp panel 100 are arranged in a track-like manner. Because the multiple partition units 10 on the lamp panel 100 are arranged more closely in this embodiment, the number of partitions in the partition unit 10 can be increased. For example, taking the total number of light-emitting units 11 on the lamp panel 100 as 64, using the above design, the number of partition units 10 on the lamp panel 100 increases from... Figure 1 The number of light-emitting units increased from 16 to 49, while the total number of light-emitting units 11 remained unchanged at 64.

[0043] Since there is a positive correlation between increasing the number of controllable zones and improving the Halo aesthetic effect, the partitioning method of the lamp panel 100 provided in this embodiment of the invention can increase the number of zones without increasing the number of light-emitting units 11, thereby reducing the difficulty of adjusting the light effect of the lamp panel 100, improving the uneven brightness and shadow problems of the display screen, and enhancing the display effect and Halo aesthetic effect.

[0044] Specifically, in this embodiment of the invention, the light-emitting unit 11 can be the effective light-emitting part in an LED chip. The present invention 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 micrometers.

[0045] It should be noted that, Figure 2 The illustration only shows the location of the center of the light-emitting unit 11 and does not represent the shape and angle of the light-emitting unit 11 in actual application. Furthermore, the present invention 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, any one of the following: circle, ellipse, rectangle, or other polygonal or irregular shapes. No limitation is made here.

[0046] Specifically, in this embodiment of the invention, the light-emitting units 11 located in adjacent rows or adjacent columns are arranged facing each other.

[0047] Specifically, in this embodiment of the invention, the shape of the partition unit 10 can be square.

[0048] It should be noted that the total number of light-emitting units 11 on the lamp board 100 in the embodiments of the present invention is not limited to 16, but may be other numbers, and the embodiments of the present invention do not limit this.

[0049] Correspondingly, Figure 2The number of IC channels in the lamp board 100 is 49, which is an increase compared to the prior art.

[0050] In another embodiment, such as Figure 3 As shown, the partitioning units 10 on the light panel 100 can also be arranged in a triangular pattern, i.e., a 3-light-per-zone arrangement. Specifically, every three adjacent light-emitting units 11 form one partitioning unit 10. The partitioning unit 10 is triangular in shape, and the number of partitioning units 10 is one-third of the total number of light-emitting units 11. The light-emitting units 11 within each partitioning unit 10 are arranged in a triangular pattern, i.e., three light-emitting units 11 arranged in a triangular pattern constitute one partitioning unit 10. The light-emitting units 11 located in adjacent rows or columns are staggered.

[0051] Understandably, with Figure 2 Similarly, in this embodiment of the invention, multiple second partition units 102 are also provided, with the spacing between two adjacent partition units 10 being 0. Specifically, two adjacent partition units 10 are arranged close together, sharing a common edge, so that the multiple partition units 10 on the entire light panel 100 are arranged in a track-like advancing manner. Because the multiple partition units 10 on the light panel 100 in this embodiment of the invention are arranged more closely, the number of partition units 10 can be increased. Meanwhile, compared to... Figure 2 In the previous embodiment of the invention, a 3-lamp-per-zone arrangement was adopted instead of a 4-lamp-per-zone arrangement. Since the number of light-emitting units 11 in each zone 10 is reduced, the number of zone 10 can be further increased while keeping the total number of light-emitting units 11 unchanged. This further increases the number of zones in the lamp panel 100, which helps to further reduce the difficulty of adjusting the light effect of the lamp panel 100, improves the uneven brightness and shadow problems of the display screen, and enhances the display effect and Halo aesthetic.

[0052] For example, in this embodiment of the invention, the total number of light-emitting units 11 on the lamp panel 100 is still 64. Using the above design, the number of partition units 10 on the lamp panel 100 is reduced from... Figure 2 The number of partition units 10 in the present invention increases from 49 to 104, and compared to the conventional triangular arrangement, the number of partition units 10 in this embodiment increases from 20 to 104. Meanwhile, the total number of light-emitting units 11 remains unchanged at 64. Therefore, the partitioning method of the lamp panel 100 provided in this embodiment can further reduce the difficulty of adjusting the light efficiency of the lamp panel 100 without increasing the total number of light-emitting units 11.

[0053] Furthermore, since there is a negative correlation between the partition area and the improvement of the Halo effect—that is, the larger the partition area, the worse the improvement of the Halo effect, and the smaller the partition area, the better the improvement of the Halo effect—it is understandable that in this embodiment of the invention, with the spacing between every two adjacent light-emitting units 11 remaining unchanged, since the area of ​​a triangle is smaller than the area of ​​a rectangle, the partition area of ​​the 3-lamp-per-zone arrangement is significantly smaller than that of the 4-lamp-per-zone arrangement. This helps to further reduce the difficulty of adjusting the light effect of the lamp panel 100, improve the uneven brightness and shadow problems of the displayed image, and enhance the display effect and Halo effect.

[0054] Specifically, in this embodiment of the invention, the shape of the partition unit 10 can be an equilateral triangle.

[0055] Correspondingly, Figure 3 The number of IC channels in the lamp board 100 is 104, compared to Figure 2 Compared with existing technologies, the number of IC channels has increased.

[0056] It should be noted that, in addition to the squares and equilateral triangles in the above embodiments, the shape of each partition unit 10 can also be any one of a regular hexagon or other regular polygon. Please refer to... Figure 4 and Figure 5 , Figure 4 Compared to Figure 2 The layout of 4 lights per zone remains unchanged; Figure 5 Compared to Figure 3 The layout remains unchanged, with three lights per zone. However, the difference is... Figure 4 Compared to Figure 2 , Figure 5 Compared to Figure 3 The two adjacent first partition units are spaced apart.

[0057] Specifically, no partition unit 10 is provided between two adjacent first partition units 101, that is, the light-emitting unit 11 is not shared between two adjacent first partition units 101, and no second partition unit 102 is provided.

[0058] As described above, when the target bright area is located between multiple partition units 10, the light patterns between the partition units 10 are irregularly arranged. For the driving algorithm, the closer the light pattern is to a circle and the smoother the halo distribution, the easier it is to adjust the Halo lighting effect. This embodiment of the invention changes the light pattern distribution by using a staggered arrangement of partition units 10, resulting in a significant change in the light pattern that is closer to a circular light pattern distribution. This helps to reduce the difficulty of adjusting the lighting effect of the lamp panel 100, improves the uneven brightness and shadow problems of the displayed image, and enhances the display effect and Halo aesthetic.

[0059] Specifically, in this embodiment of the invention, the light panel 100 further includes multiple partition groups. Each partition group includes three adjacent partition units 10 and a spacing region 12 located between the three partition units 10. The illuminateable area of ​​each partition group is a circular area. For each partition group, the line connecting the center point of the spacing region 12 to the center point of each partition unit 10 is located within the same semicircle of the circular area. The spacing region 12 is a triangular area formed by connecting the three closest light-emitting units 11 of the three partition units 10 in pairs. It can be understood that, compared to... Figure 1 The lines connecting the center point of each partition unit 10 to the center point of the interval region 12 are unevenly distributed within the same semicircular region of the circular region, making the distribution of the connecting lines within the circular region more uniform and helping to reduce the difficulty of adjusting the light effect of the lamp panel 100.

[0060] Specifically, in this embodiment of the invention, for each partition group, the interior angles of the triangles formed by connecting the three center points of the three partition units 10 in pairs are all less than 90 degrees. The reason for this setting is that the larger the interior angles of the triangles formed by connecting the three center points of the three partition units 10 in pairs, the more difficult it is to adjust the light effect of the lamp panel 100. In particular, when the interior angles of the triangles are right angles or obtuse angles, the difficulty of adjusting the light effect is poor. Therefore, in this embodiment, the interior angles of the triangles are controlled to be less than 90 degrees, which helps to reduce the difficulty of adjusting the light effect of the lamp panel 100.

[0061] In one embodiment, such as Figure 4 As shown, compared to Figure 1 This embodiment retains the 4-lamp-per-zone arrangement, but the difference lies in the staggered arrangement of the multiple partition units 10 located in adjacent rows and / or adjacent columns. Similarly, taking three adjacent partition units 10 as an example, triangular region A refers to the area enclosed by the lines connecting the three closest light-emitting units 11 within the three partition units 10, i.e., the interval region 12; triangular region B refers to the area enclosed by the lines connecting the center points of the three partition units 10; and the light pattern of the three partition units 10 is a circular region C. While the distance from the center point of each partition unit 10 to the center point O of triangular region A remains slightly different, compared to... Figure 1The distance difference between the center point of each partition unit 10 and the center point O of the triangular region A is reduced, meaning the distances between the lines connecting the center point of each partition unit 10 and the center point O of the triangular region A are nearly equal, which helps reduce the difficulty of adjusting lighting effects. Simultaneously, the lines connecting the center point O of the triangular region A and the center point of each partition unit 10 are all located within the same semicircle of the circular region, resulting in a more uniform distribution. This allows for smoother transitions when the image changes, making lighting effect adjustment easier and producing a more delicate, uniform, and stable image, significantly reducing shadow effects.

[0062] Specifically, in this embodiment of the invention, the shape of the partition unit 10 can be square.

[0063] Accordingly, this embodiment of the invention still takes the total number of light-emitting units 11 on the lamp board 100 as 64 as an example. In this embodiment, the number of IC channels in the lamp board 100 is 16. Compared to the prior art, the number of IC channels remains unchanged, while compared to... Figure 2 and Figure 3 The number of IC channels is greatly reduced.

[0064] In one embodiment, such as Figure 5 As shown, with Figure 4 The difference lies in the fact that this embodiment uses a 3-light-per-zone arrangement. In this embodiment, multiple partition units 10 located in adjacent rows and / or adjacent columns are staggered. The distance from the center point of each partition unit 10 to the center point O of the triangular region A is the same, and the line connecting the center point O of the interval region 12 to the center point of each partition unit 10 is trisected within the same semicircle of the circular region, making the connection distribution more uniform, allowing for a smoother transition when the image changes, further reducing the difficulty of adjusting the lighting effect, resulting in a more delicate, uniform, and stable image, and greatly reducing shadow phenomena.

[0065] Specifically, in this embodiment of the invention, the shape of the partition unit 10 can be an equilateral triangle.

[0066] Accordingly, in this embodiment of the invention, the total number of light-emitting units 11 on the lamp panel 100 is 60, compared to Figures 2-4 The total number of light-emitting units 11 is reduced. In this embodiment of the invention, the number of IC channels in the lamp board 100 is 20, which is slightly increased compared to the prior art. Figure 2 and Figure 3 The number of IC channels is greatly reduced.

[0067] all in all, Figure 2 and Figure 3The lamp panel 100 in the above-mentioned light panel 100 increases the number of partitions by arranging multiple partition units 10 in a track-like manner, thereby reducing the difficulty of adjusting the light effect of the lamp panel 100 and improving the display effect and Halo taste effect. The difference is that... Figure 4 and Figure 5 The lamp panel 100 in the image alters the light distribution by staggering multiple partition units 10 located in adjacent rows and / or adjacent columns. This makes the light-emitting area projected by each partition unit 10 closer to a near-circular light distribution, reducing the difficulty of adjusting the light effect of the lamp panel 100 and thus improving the display effect and Halo aesthetic. Therefore, both of these methods can improve the uneven brightness and shadow problems of the displayed image.

[0068] However, it should be noted that... Figure 1 The number of IC channels in the lamp board 100 in the prior art is 16. Figure 2 The number of IC channels in the lamp board 100 is 49. Figure 3 The number of IC channels in the lamp board 100 is 104. Figure 4 The number of IC channels in the lamp board 100 is 16. Figure 4 The number of IC channels in the lamp board 100 is 16. Therefore, compared to existing technologies, Figure 2 and Figure 3 The number of IC channels in the lamp board 100 is increased. Figure 3 and Figure 4 The number of IC channels in the lamp board 100 remains constant. Since a higher number of IC channels leads to a more complex driver board design for the lamp board 100 and higher costs, the lamp board 100 of this invention preferably improves display quality and Halo effect without increasing the complexity of the driver board. Figure 4 and 5 The partitioned arrangement method in the lamp board 100 reduces the number of IC channels without increasing the total number of light-emitting units 11 used on the lamp board 100. The staggered arrangement of partitioned units 10 can be achieved simply by changing the wiring arrangement, which helps to reduce the pressure on the layout space and lower the design requirements of the driver board.

[0069] In one embodiment, such as Figure 6 As shown, Figure 6 and Figure 4 The difference is that two adjacent first partition units 101 located in different rows share one light-emitting unit 11, while two adjacent first partition units 101 located in the same row do not share the light-emitting unit 11.

[0070] As shown in Table 1 below, Table 1 is a comparison chart of the uniformity of the light panels provided in the embodiments of the present invention using different partitioning arrangements. For example, the table below shows... Figure 1 , Figure 4 as well as Figure 5 The table shows the area of ​​single, double, and triple partitioning, where the distance between any two adjacent light-emitting units 11 is equal, and each light-emitting unit 11 is a regular polygon with a side length of 3. As can be seen from this table, for any of the single, double, or triple partitioning methods, the area of ​​single, double, or triple partitioning is... Figure 5 The areas shown in the partition arrangement are all smaller than those using... Figure 1 and Figure 4 When arranging the zones in a symmetrical pattern, the smaller the area, the closer the light distribution is to a circle, resulting in a better Halo effect. Therefore, the symmetrical arrangement is preferred. Figure 5 The uniformity of the partitioned arrangement shown is compared to that of the method used. Figure 1 and Figure 4 The uniformity of the partition arrangement is better, which is more conducive to improving the display effect and Halo taste effect, and thus can better improve the uneven brightness and shadow problems of the display screen.

[0071] Table 1

[0072]

[0073] Please see Figure 7 and Figure 8 The lamp panel 100 further includes a driving circuit, which is used to drive the plurality of partition units on the lamp panel to emit light. To clearly describe the lamp panel light emission technical solution in this application, this embodiment uses... Figure 7 Taking the light panel with a 4-lamp-per-zone arrangement as an example, exemplarily, Figure 7 The light panel 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 sequentially, light-emitting units 5-8 are located in the second row and arranged sequentially, light-emitting units 9-12 are located in the third row and arranged sequentially, and light-emitting units 13-16 are located in the fourth row and arranged sequentially. The light panel uses a design similar to... Figure 2 The track-like partition arrangement in the light-emitting unit makes four adjacent light-emitting units form a partition unit. Specifically, light-emitting units 1 / 2 / 5 / 6 form partition unit 1, light-emitting units 2 / 3 / 6 / 7 form partition unit 2, light-emitting units 3 / 4 / 7 / 8 form partition unit 3, light-emitting units 5 / 6 / 9 / 10 form partition unit 4, light-emitting units 6 / 7 / 10 / 11 form partition unit 5, light-emitting units 7 / 8 / 11 / 12 form partition unit 6, light-emitting units 9 / 10 / 13 / 14 form partition unit 7, light-emitting units 10 / 11 / 14 / 15 form partition unit 8, and light-emitting units 11 / 12 / 15 / 16 form partition unit 9.

[0074] The driving circuit includes an input terminal and an output terminal. The input terminal is used to electrically connect to the main 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 of the light-emitting units of the driving circuit will be explained below.

[0075] 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.

[0076] 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 1, and the second end of the light-emitting unit 2 is electrically connected to the first end of the light-emitting unit 6.

[0077] 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;

[0078] 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;

[0079] 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;

[0080] 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;

[0081] 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.

[0082] 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;

[0083] 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;

[0084] The first end of the light-emitting unit 16 is connected to the second end of the light-emitting unit 12;

[0085] 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.

[0086] Correspondingly, such as Figure 9 As shown in the figure, this embodiment of the invention also provides a backlight module, which can be a direct-lit backlight module. The backlight module includes a lamp panel 100, a back plate 110, a light guide plate 120, and an optical film assembly 130 as described in the above embodiment. The back plate 110 includes a base plate 1101 and a side plate 1102 connected to the base plate 1101 and extending upward along the base plate 1101. The base plate 1101 and the side plate 1102 form an accommodating space. The lamp panel 100, the back plate 110, the light guide plate 120, and the optical film assembly 130 are located within the accommodating space. The lamp panel 100 is located on the base plate 1101, the light guide plate 120 is located on the light-emitting side of the lamp panel 100, and the optical film assembly 130 is located on the side of the light guide plate 120 away from the lamp panel 100. Other film layer structures of the backlight module can refer to the film layer structures of existing backlight modules, and no specific limitations are made here.

[0087] Correspondingly, such as Figure 10 As shown in the figure, this embodiment of the invention also provides a display device, which includes a display panel 2 and a backlight module 1 as described in the above embodiment. 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 can be a liquid crystal display panel. Specifically, the display panel 2 includes 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 includes a plurality of liquid crystal molecules. A 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.

[0088] Beneficial effects: In the lamp board, backlight module, and display device provided in the embodiments of the present invention, by staggering the arrangement of multiple 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 pattern distribution can be changed, so that the light-emitting area projected by each partition unit is closer to the circular light pattern distribution, which is beneficial to improving the uneven brightness and shadow problems of the display screen, and improving the display effect of the light-emitting units in each partition unit and the Halo effect; at the same time, compared with the conventional rectangular or triangular arrangement method used in the prior art, the present invention can achieve staggered arrangement of partition units by simply changing the wiring arrangement 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.

[0089] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0090] The foregoing has provided a detailed description of a lamp board, backlight module, and display device provided in the embodiments of the present invention. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the technical solutions and core ideas of the present invention. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions 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 invention.

Claims

1. A light panel, characterized in that, It includes multiple partition units arranged in multiple rows / columns, each partition unit being a polygon, with a light-emitting unit disposed at each vertex of the polygon; wherein, the multiple partition units include multiple first partition units, and any two first partition units located in adjacent rows and / or adjacent columns are staggered. Two adjacent first partition units are spaced apart and no partition unit is set between two adjacent first partition units; each first partition unit and another first partition unit located in an adjacent row and adjacent to each other have some of their light-emitting units located in the same row, and / or each first partition unit and another first partition unit located in an adjacent column have some of their light-emitting units located in the same column. The lamp board further includes a driving circuit, which is used to drive multiple partition units on the lamp board to emit light. The driving circuit includes an input terminal and an output terminal. The input terminal is used to be electrically connected to the input total signal, and the output terminal is used to output the signal to each partition unit. 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.

2. The lamp panel according to claim 1, characterized in that, The light panel also includes multiple partition groups, each partition group including three adjacent first partition units and an interval area located between the three first partition units; In each of the partition groups, the line connecting the center point of the interval region to the center point of each of the first partition units is equal.

3. The lamp panel according to claim 2, characterized in that, For each of the partition groups, the interior angles of the triangles formed by connecting the three center points of the three partition units in pairs are all less than 90 degrees.

4. The lamp panel according to claim 1, characterized in that, The shape of each partition unit includes any one of a regular quadrilateral, a regular hexagon, or other regular polygons.

5. A backlight module, characterized in that, Including the lamp panel as described in any one of claims 1-4; and An optical film assembly is disposed on the light-emitting side of the lamp panel.

6. A display device, characterized in that, include: Display panel; as well as The backlight module as described in claim 5 is disposed on the non-light-emitting side of the display panel.

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