Backlight module, display device and electronic equipment

Abstract

The present application relates to a backlight module, a display device and an electronic device. The backlight module includes: a driving substrate and a light-emitting layer, the light-emitting layer is arranged on the driving substrate, the light-emitting layer includes a plurality of first light-emitting chains and a plurality of second light-emitting chains, the first light-emitting chains and the second light-emitting chains are arranged alternately in sequence along a first direction and are connected in pairs, the first light-emitting chain and the second light-emitting chain both include a plurality of light-emitting groups arranged in a second direction and connected in sequence, each light-emitting group includes a sub-light-emitting group and a first light-emitting unit, each sub-light-emitting group includes eight light-emitting units and the eight light-emitting units form an octagonal structure, the first light-emitting unit is located in the octagonal structure, and any two adjacent sub-light-emitting groups share two light-emitting units; each octagonal structure of the first light-emitting chain and two adjacent octagonal structures on the second light-emitting chain share one light-emitting unit, wherein the first direction intersects with the second direction. The backlight display of the backlight module is uniform and has a good display effect.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a backlight module, a display device and an electronic device. Background Art

[0002] With the rapid development of Mini-Light Emitting Diode (Mini-LED) display technology, display panels with Mini-LED driving architecture as backlight modules are widely used in products such as TVs, laptops, desktop computers and mobile phones because they can achieve regional dimming, have high dynamic contrast and high brightness.

[0003] The common Mini-LED arrangement is basically a quadrilateral. When the LED lamp beads are tilted at a certain angle, the side of the Mini-LED will emit light. However, because the commonly used Mini-LED structure is a rectangular structure, there is a difference in the light-emitting area of ​​the long side and the short side of the Mini-LED, which makes the brightness of the adjacent matrix centers different, which in turn leads to uneven backlight display and affects the display effect. In addition, when the Mini-LED is arranged in a quadrilateral, the spacing between the Mini-LEDs is small, and the number of Mini-LEDs required to achieve the same light-emitting area is large, which is not conducive to reducing the production cost of the backlight module. Summary of the invention

[0004] In view of this, the present application provides a backlight module, a display device and an electronic device. The backlight module has uniform backlight display, good display effect, and a smaller number of light-emitting units while ensuring the same light output area, and the production cost of the backlight module is low.

[0005] The present application provides a backlight module, which includes: a driving substrate and a light-emitting layer, wherein the light-emitting layer is arranged on the driving substrate, and the light-emitting layer includes a plurality of first light-emitting chains and a plurality of second light-emitting chains, wherein the first light-emitting chains and the second light-emitting chains are alternately arranged in sequence along a first direction and are connected in pairs, and the first light-emitting chains and the second light-emitting chains each include a plurality of light-emitting groups arranged in a second direction and connected in sequence, each of the light-emitting groups includes a sub-light-emitting group and a first light-emitting unit, each sub-light-emitting group includes eight light-emitting units, and the eight light-emitting units form an octagonal structure, the first light-emitting unit is located in the octagonal structure, and any two adjacent sub-light-emitting groups share two of the light-emitting units; each of the octagonal structures of the first light-emitting chain and two adjacent octagonal structures on the second light-emitting chain share one light-emitting unit, wherein the first direction intersects with the second direction.

[0006] Further, the sub-light-emitting groups include a second light-emitting unit, a third light-emitting unit, a fourth light-emitting unit, a fifth light-emitting unit, a sixth light-emitting unit, a seventh light-emitting unit and an eighth light-emitting unit, and the second light-emitting unit, the third light-emitting unit, the fourth light-emitting unit, the fifth light-emitting unit, the sixth light-emitting unit, the seventh light-emitting unit and the eighth light-emitting unit are arranged in sequence along the corners of the octagonal structure; the second light-emitting unit, the third light-emitting unit, the sixth light-emitting unit and the seventh light-emitting unit of each sub-light-emitting group of the first light-emitting chain are shared with the adjacent second light-emitting chain, and the fourth light-emitting unit, the fifth light-emitting unit, the eighth light-emitting unit and the ninth light-emitting unit of each sub-light-emitting group are shared with the adjacent sub-light-emitting group.

[0007] Furthermore, the first light-emitting unit, the fourth light-emitting unit, the fifth light-emitting unit, the eighth light-emitting unit and the ninth light-emitting unit of each of the light-emitting groups have a first light-emitting surface and a second light-emitting surface that are bent and connected, the area of ​​the first light-emitting surface is larger than the area of ​​the second light-emitting surface, and the first light-emitting surface of the first light-emitting unit, the first light-emitting surface of the fourth light-emitting unit, the first light-emitting surface of the fifth light-emitting unit, the first light-emitting surface of the eighth light-emitting unit and the first light-emitting surface of the ninth light-emitting unit of each of the light-emitting groups are parallel to each other.

[0008] Furthermore, the second light-emitting unit and the sixth light-emitting unit of each of the light-emitting groups have a third light-emitting surface and a fourth light-emitting surface that are connected by a bending, the area of ​​the third light-emitting surface is larger than the area of ​​the fourth light-emitting surface, and the third light-emitting surface of the second light-emitting unit is parallel to the third light-emitting surface of the sixth light-emitting unit; the third light-emitting unit and the seventh light-emitting unit of each of the light-emitting groups have a fifth light-emitting surface and a sixth light-emitting surface that are connected by a bending, the area of ​​the fifth light-emitting surface is larger than the area of ​​the sixth light-emitting surface, and the fifth light-emitting surface of the third light-emitting unit is parallel to the fifth light-emitting surface of the seventh light-emitting unit.

[0009] Furthermore, the distances between the first light emitting unit and the fourth light emitting unit, the fifth light emitting unit, the eighth light emitting unit and the ninth light emitting unit are all equal.

[0010] Furthermore, the distances between the first light emitting unit and the second light emitting unit, the sixth light emitting unit, the third light emitting unit and the seventh light emitting unit are all equal.

[0011] Furthermore, the bisector of the angle formed by the third light-emitting surface of the second light-emitting unit and the fifth light-emitting surface of the third light-emitting unit is perpendicular to the second direction; the bisector of the angle formed by the third light-emitting surface of the sixth light-emitting unit and the fifth light-emitting surface of the seventh light-emitting unit is perpendicular to the second direction.

[0012] Further, the first light-emitting surface of the fourth light-emitting unit, the first light-emitting surface of the fifth light-emitting unit, the first light-emitting surface of the eighth light-emitting unit and the first light-emitting surface of the ninth light-emitting unit are all perpendicular to the second direction.

[0013] The present application also provides a display device, which includes: a liquid crystal display panel and a backlight module provided in the present application, wherein the backlight module is used to emit light toward the liquid crystal display panel to provide backlight for the liquid crystal display panel.

[0014] The present application also provides an electronic device, characterized in that the electronic device includes: a shell, a display device provided in the present application and a processor, the shell is used to accommodate the display device, and the processor is electrically connected to the display device to control the display device to display.

[0015] In the backlight module provided in the present application, each sub-light-emitting group includes eight light-emitting units and the eight light-emitting units are surrounded by an octagonal structure, which is conducive to widening the distance between the multiple light-emitting units, so that under the premise of ensuring the same light-emitting area, the number of light-emitting units in the backlight module can be reduced to reduce the production cost of the backlight module. In addition, any two adjacent sub-light-emitting groups share two light-emitting units, and each of the octagonal structures of the first light-emitting chain and the two adjacent octagonal structures on the second light-emitting chain share one light-emitting unit, then each of the light-emitting units can provide light sources for the two octagonal structures, which is conducive to saving the number of the light-emitting units and reducing the production cost of the backlight module. Furthermore, the eight light-emitting units are surrounded by an octagonal structure, and the brightness inside the octagonal structure is relatively weak. The first light-emitting unit is arranged in the octagonal structure, which is conducive to improving the brightness inside the octagonal structure, so that the backlight display of the backlight module is uniform and has a better display effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the implementation will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of a backlight module in the prior art;

[0018] Figure 2 This is a schematic structural diagram of a backlight module according to an embodiment of the present application;

[0019] Figure 3 This is a circuit block diagram of a backlight module according to an embodiment of the present application;

[0020] Figure 4 The backlight module of one embodiment of the present application is Figure 2 The enlarged view of the dashed box C in the middle;

[0021] Figure 5 This is a schematic structural diagram of a display device according to an embodiment of the present application;

[0022] Figure 6 A display device according to an embodiment of the present application Figure 5 Schematic diagram of a partial cross section of EE;

[0023] Figure 7 A schematic diagram of the structure of an electronic device according to an embodiment of the present application;

[0024] Figure 8 A circuit block diagram of an electronic device according to an embodiment of the present application.

[0025] Description of reference numerals:

[0026] 100-backlight module, 110-driving substrate, 120-light-emitting layer, 121-first light-emitting chain, 122-second light-emitting chain, 123-light-emitting group, 124-sub-light-emitting group, 1241-second light-emitting unit, 1242-third light-emitting unit, 1243-fourth light-emitting unit, 1244-fifth light-emitting unit, 1245-sixth light-emitting unit, 1246-seventh light-emitting unit, 1247-eighth light-emitting unit, 1248-ninth light-emitting unit, 125-third A light-emitting unit, 126-a first light-emitting surface, 127-a second light-emitting surface, 128-a third light-emitting surface, 129-a fourth light-emitting surface, 130-a fifth light-emitting surface, 131-a sixth light-emitting surface, 200-a display device, 210-a liquid crystal display panel, 220-a frame, 230-a rubber frame, 240-a back plate, 250-a reflective plate, 260-a diffuser plate, 270-an optical film material, 300-an electronic device, 310-a housing, 320-a processor, and 330-a memory. DETAILED DESCRIPTION

[0027] 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 described embodiments 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 ordinary technicians in this field without creative work are within the scope of protection of this application.

[0028] The terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices.

[0029] Reference to "embodiment" or "implementation" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment or implementation may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0030] See also Figure 1 The common Mini-LED wick arrangement is basically a quadrilateral, such as Figure 1 As shown, multiple Mini-LEDs are arranged at intervals on the driving substrate. When the LED lamp beads are arranged at a certain angle, light sources will be emitted from the sides of the Mini-LEDs. However, because the structure of the commonly used Mini-LEDs is a rectangular structure, there is a difference between the luminous area of ​​the surface where the long side of the Mini-LED is located and the luminous area of ​​the surface where the short side is located, resulting in differences in the brightness of adjacent matrix centers. Figure 1 The matrix structure consisting of the first row and first column, the first row and second column, the second row and first column, and the second row and second column is structure 1 (such as Figure 1 (shown in the dotted box in A); Figure 1 The matrix structure composed of the second row and first column, the second row and second column, the third row and first column, and the third row and second column is structure 2 (such as Figure 1 In structure 1, the surface where the long side of the Mini-LED is located is arranged toward the center of the matrix, so that the brightness of the center of the matrix in structure 1 is greater; in structure 2, the surface where the short side of the Mini-LED is located is arranged toward the center of the matrix, so that the brightness of the center of the matrix in structure 2 is smaller. Figure 1 On the driving substrate shown, structure 1 and structure 2 are arranged alternately, which makes the backlight display of the entire backlight module uneven, affecting the display effect. In addition, under the condition of the same light output area, when Mini-LEDs are arranged in a quadrilateral, the distance between adjacent Mini-LEDs is small, so that the number of Mini-LEDs required is large, which is not conducive to reducing the production cost of the backlight module.

[0031] See also Figure 2 The present application provides a backlight module 100, the backlight module 100 comprising: a driving substrate 110 and a light-emitting layer 120, the light-emitting layer 120 being arranged on the driving substrate 110, the light-emitting layer 120 comprising a plurality of first light-emitting chains 121 and a plurality of second light-emitting chains 122, the first light-emitting chains 121 and the second light-emitting chains 122 being arranged along a first direction (such as Figure 2 The first light-emitting chain 121 and the second light-emitting chain 122 each include a light-emitting chain 121 and a light-emitting chain 122 along the second direction (as shown in FIG. Figure 2 A plurality of light-emitting groups 123 are arranged and sequentially connected (as shown in FIG. 1 ), each of the light-emitting groups 123 includes a sub-light-emitting group 124 and a first light-emitting unit 125, each of the sub-light-emitting groups 124 includes eight light-emitting units, and the eight light-emitting units form an octagonal structure (as shown in FIG. Figure 2 As shown in the dashed box in C, the first light-emitting unit 125 is located in the octagonal structure, and any two adjacent sub-light-emitting groups 124 share two of the light-emitting units; each of the octagonal structures of the first light-emitting chain 121 and two adjacent octagonal structures on the second light-emitting chain 122 share one light-emitting unit, wherein the first direction intersects the second direction.

[0032] See also Figure 2 and Figure 3 Optionally, in some embodiments of the present application, the driving substrate 110 has a driving circuit, and the driving substrate 110 is electrically connected to the light-emitting layer 120, and is used to drive the light-emitting layer 120 to emit light. Specifically, the driving substrate 110 is electrically connected to each of the sub-light-emitting groups 124 and each of the first light-emitting units 125, and is used to drive each of the sub-light-emitting groups 124 and each of the first light-emitting units 125 to emit light. In some embodiments, the driving substrate 110 can be a thin film transistor (TFT) substrate.

[0033] Optionally, in some embodiments, the first direction is perpendicular to the second direction.

[0034] Optionally, in some specific embodiments, the sub-light emitting group 124 and the first light emitting unit 125 are Mini-LEDs. When the sub-light emitting group 124 and the first light emitting unit 125 are Mini-LEDs, the backlight module 100 can achieve regional dimming, high dynamic contrast and high brightness.

[0035] Optionally, in some embodiments, the first light emitting unit 125 is disposed at the center of the matrix of the octagonal structure. When the first light emitting unit 125 is disposed at the center of the matrix of the octagonal structure, it is beneficial to improve the uniformity of the brightness of each of the octagonal structures, thereby making the backlight display of the backlight module 100 uniform.

[0036] In the embodiment of the present application, each sub-light-emitting group 124 includes eight light-emitting units and the eight light-emitting units form an octagonal structure, which is conducive to increasing the distance between the multiple light-emitting units, so that under the premise of ensuring the same light-emitting area, the number of light-emitting units in the backlight module 100 can be reduced to reduce the production cost of the backlight module 100. In addition, any two adjacent sub-light-emitting groups 124 share two light-emitting units, and each of the octagonal structures of the first light-emitting chain 121 and the two adjacent octagonal structures on the second light-emitting chain 122 share one light-emitting unit, so each light-emitting unit can provide light sources for the two octagonal structures, which is conducive to saving the number of light-emitting units and reducing the production cost of the backlight module 100. Furthermore, the eight light-emitting units form an octagonal structure, and the brightness inside the octagonal structure is relatively weak. The first light-emitting unit 125 is arranged in the octagonal structure, which is conducive to improving the brightness inside the octagonal structure, so that the backlight display of the backlight module 100 is uniform and has a good display effect.

[0037] See also Figure 2 and Figure 4 In some embodiments, the sub-light-emitting group 124 includes a second light-emitting unit 1241, a third light-emitting unit 1242, a fourth light-emitting unit 1243, a fifth light-emitting unit 1244, a sixth light-emitting unit 1245, a seventh light-emitting unit 1246 and an eighth light-emitting unit 1247, and the second light-emitting unit 1241, the third light-emitting unit 1242, the fourth light-emitting unit 1243, the fifth light-emitting unit 1244, the sixth light-emitting unit 1245, the seventh light-emitting unit 1246 and the eighth light-emitting unit 1247 are arranged in sequence along the corners of the octagonal structure; the second light-emitting unit 1241, the third light-emitting unit 1242, the sixth light-emitting unit 1245 and the seventh light-emitting unit 1246 of each sub-light-emitting group 124 of the first light-emitting chain 121 are shared with the adjacent second light-emitting chain 122, and the fourth light-emitting unit 1243, the fifth light-emitting unit 1244, the eighth light-emitting unit 1247 and the ninth light-emitting unit 1248 of each sub-light-emitting group 124 are shared with the adjacent sub-light-emitting group 124.

[0038] In the embodiment of the present application, the second light emitting unit 1241, the third light emitting unit 1242, the fourth light emitting unit 1243, the fifth light emitting unit 1244, the sixth light emitting unit 1245, the seventh light emitting unit 1246 and the eighth light emitting unit 1247 enclose the octagonal structure, and the second light emitting unit 1241, the third light emitting unit 1242, the fourth light emitting unit 1243, the fifth light emitting unit 1244, the sixth light emitting unit 1245, the seventh light emitting unit 1246 and the eighth light emitting unit 1247 are respectively located at the eight corners of the octagon. The octagonal structure enclosed by the sub-light emitting group 124 is conducive to increasing the distance between the multiple light emitting units, so that under the premise of ensuring the same light emitting area, the number of light emitting units in the backlight module 100 can be reduced to reduce the production cost of the backlight module 100. In addition, in the embodiment of the present application, along the first direction, the first light-emitting chains 121 and the second light-emitting chains 122 are alternately arranged and connected in pairs, the second light-emitting unit 1241, the third light-emitting unit 1242, the sixth light-emitting unit 1245 and the seventh light-emitting unit 1246 of each sub-light-emitting group 124 are shared with the adjacent second light-emitting chain 122, and the fourth light-emitting unit 1243, the fifth light-emitting unit 1244, the eighth light-emitting unit 1247 and the ninth light-emitting unit 1248 of each sub-light-emitting group 124 are shared with the adjacent sub-light-emitting group 124, so that the eight light-emitting units of the sub-light-emitting group 124 can provide light sources for the two octagonal structures, which is beneficial to saving the number of the light-emitting units and reducing the production cost of the backlight module 100.

[0039] In some embodiments, the first light-emitting unit 125, the fourth light-emitting unit 1243, the fifth light-emitting unit 1244, the eighth light-emitting unit 1247 and the ninth light-emitting unit 1248 of each of the light-emitting groups 123 have a first light-emitting surface 126 and a second light-emitting surface 127 that are bent and connected, the area of ​​the first light-emitting surface 126 is larger than the area of ​​the second light-emitting surface 127, and the first light-emitting surface 126 of the first light-emitting unit 125, the first light-emitting surface 126 of the fourth light-emitting unit 1243, the first light-emitting surface 126 of the fifth light-emitting unit 1244, the first light-emitting surface 126 of the eighth light-emitting unit 1247 and the first light-emitting surface 126 of the ninth light-emitting unit 1248 of each of the light-emitting groups 123 are parallel to each other.

[0040] In the embodiment of the present application, the first light-emitting surface 126 of the first light-emitting unit 125, the first light-emitting surface 126 of the fourth light-emitting unit 1243, the first light-emitting surface 126 of the fifth light-emitting unit 1244, the first light-emitting surface 126 of the eighth light-emitting unit 1247 and the first light-emitting surface 126 of the ninth light-emitting unit 1248 are parallel to each other, which is beneficial to concentrate the light sources emitted by the first light-emitting unit 125, the fourth light-emitting unit 1243, the fifth light-emitting unit 1244, the eighth light-emitting unit 1247 and the ninth light-emitting unit 1248, providing the octagonal structure with a brighter light source, which is beneficial to improving the overall brightness of the backlight module 100.

[0041] In some embodiments, the second light-emitting unit 1241 and the sixth light-emitting unit 1245 of each of the light-emitting groups 123 have a third light-emitting surface 128 and a fourth light-emitting surface 129 connected by bending, the area of ​​the third light-emitting surface 128 is larger than the area of ​​the fourth light-emitting surface 129, and the third light-emitting surface 128 of the second light-emitting unit 1241 is parallel to the third light-emitting surface 128 of the sixth light-emitting unit 1245;

[0042] In an embodiment of the present application, the third light-emitting surface 128 of the second light-emitting unit 1241 is parallel to the third light-emitting surface 128 of the sixth light-emitting unit 1245, which is beneficial to concentrate the light sources emitted by the second light-emitting unit 1241 and the sixth light-emitting unit 1245, and provide a brighter light source for the center of the octagonal structure.

[0043] In some embodiments, the third light-emitting unit 1242 and the seventh light-emitting unit 1246 of each of the light-emitting groups 123 have a fifth light-emitting surface 130 and a sixth light-emitting surface 131 that are bent and connected, the area of ​​the fifth light-emitting surface 130 is larger than the area of ​​the sixth light-emitting surface 131, and the fifth light-emitting surface 130 of the third light-emitting unit 1242 is parallel to the fifth light-emitting surface 130 of the seventh light-emitting unit 1246.

[0044] In an embodiment of the present application, the fifth light-emitting surface 130 of the third light-emitting unit 1242 is parallel to the fifth light-emitting surface 130 of the seventh light-emitting unit 1246, which is beneficial to concentrate the light sources emitted by the third light-emitting unit 1242 and the seventh light-emitting unit 1246, and provide a brighter light source for the center of the octagonal structure, thereby improving the overall brightness of the backlight module 100, so that the backlight module 100 has a better display effect.

[0045] In some embodiments, the distances between the first light emitting unit 125 and the fourth light emitting unit 1243 , the fifth light emitting unit 1244 , the eighth light emitting unit 1247 and the ninth light emitting unit 1248 are all equal.

[0046] In the embodiment of the present application, the first light-emitting unit 125 is arranged in the octagonal structure, and the distances between the first light-emitting unit 125 and the fourth light-emitting unit 1243, the fifth light-emitting unit 1244, the eighth light-emitting unit 1247 and the ninth light-emitting unit 1248 are all equal, and the first light-emitting unit 125 is located at the center of the matrix of the octagonal structure. When the fourth light-emitting unit 1243, the fifth light-emitting unit 1244, the eighth light-emitting unit 1247 and the ninth light-emitting unit 1248 are located at the four corners of the octagonal structure, the area away from the center of the matrix in each octagonal structure has a higher brightness. The first light-emitting unit 125 is arranged at the center of the octagonal structure, which is conducive to compensating the brightness of the center of the octagonal structure, so that the octagonal structure has uniform brightness, and then improves the uniformity of the overall brightness of the backlight module 100, so that the backlight module 100 has a better display effect.

[0047] In some embodiments, the distances between the first light emitting unit 125 and the second light emitting unit 1241 , the sixth light emitting unit 1245 , the third light emitting unit 1242 , and the seventh light emitting unit 1246 are all equal.

[0048] In the embodiment of the present application, the first light-emitting unit 125 is arranged in the octagonal structure, and the distances between the first light-emitting unit 125 and the second light-emitting unit 1241, the sixth light-emitting unit 1245, the third light-emitting unit 1242 and the seventh light-emitting unit 1246 are all equal, and the first light-emitting unit 125 is located at the center of the matrix of the octagonal structure. When the second light-emitting unit 1241, the sixth light-emitting unit 1245, the third light-emitting unit 1242 and the seventh light-emitting unit 1246 are located at the four corners of the octagonal structure, the area away from the center of the matrix in each octagonal structure has a higher brightness. The first light-emitting unit 125 is arranged at the center of the octagonal structure, which is conducive to compensating the brightness of the center of the octagonal structure, so that the octagonal structure has uniform brightness, and then improves the uniformity of the overall brightness of the backlight module 100, so that the backlight module 100 has a better display effect.

[0049] In some embodiments, the bisector of the angle formed by the third light-emitting surface 128 of the second light-emitting unit 1241 and the fifth light-emitting surface 130 of the third light-emitting unit 1242 is perpendicular to the second direction.

[0050] In the embodiment of the present application, the second light-emitting unit 1241 and the third light-emitting unit 1242 are adjacently arranged in the octagonal structure, and the angle bisector of the angle formed by the third light-emitting surface 128 of the second light-emitting unit 1241 and the fifth light-emitting surface 130 of the third light-emitting unit 1242 is perpendicular to the second direction, then the angle formed by the third light-emitting surface 128 of the second light-emitting unit 1241 and the second direction is complementary to the angle formed by the fifth light-emitting surface 130 of the third light-emitting unit 1242 and the second direction, so that in the octagonal structure The third light-emitting surface 128 of the second light-emitting unit 1241 is arranged to face the center of the octagonal structure, and the fifth light-emitting surface 130 of the third light-emitting unit 1242 is arranged to face the center of the octagonal structure. The third light-emitting surface 128 of the second light-emitting unit 1241 and the fifth light-emitting surface 130 of the third light-emitting unit 1242 have a larger light-emitting area, which can provide more light sources for the octagonal structure, thereby improving the overall brightness of the backlight module 100, so that the backlight module 100 has a better display effect.

[0051] Optionally, in some embodiments, the third light-emitting surface 128 of the second light-emitting unit 1241 has a first angle α1 with the second direction, the fifth light-emitting surface 130 of the third light-emitting unit 1242 has a second angle α2 with the second direction, the first angle and the second angle are complementary to each other, and the first angle α1 satisfies α1<90°, and the second angle α2 satisfies α2>90°.

[0052] In the embodiment of the present application, when the first angle and the second angle are complementary angles, the third light-emitting surface 128 with a larger light-emitting area in the second light-emitting unit 1241 is arranged facing the center of the octagonal structure, and the fifth light-emitting surface 130 with a larger light-emitting area in the third light-emitting unit 1242 is arranged facing the center of the octagonal structure, so that the second light-emitting unit 1241 and the third light-emitting unit 1242 can provide more light sources for the octagonal structure, thereby improving the overall brightness of the backlight module 100. Furthermore, the third light-emitting surface 128 of the second light-emitting unit 1241 is arranged facing the center of the octagonal structure, and among the light sources provided by the second light-emitting unit 1241 for the octagonal structure, the component parallel to the first direction is greater than the component parallel to the second direction, so that more light sources parallel to the first direction are provided for the octagonal structure. The fifth light-emitting surface 130 with a larger light-emitting area in the third light-emitting unit 1242 is arranged to face the center of the octagonal structure. Among the light sources provided by the third light-emitting unit 1242 for the octagonal structure, the component parallel to the first direction is greater than the component parallel to the second direction, thereby providing the octagonal structure with more light sources parallel to the first direction.

[0053] Optionally, in some embodiments, the first angle α1 of the second light emitting unit 1241 is 45°, and the second angle α2 of the third light emitting unit 1242 is 135°. In other embodiments, the first angle α1 of the second light emitting unit 1241 is 30°, and the second angle α2 of the third light emitting unit 1242 is 150°. In still other embodiments, the first angle α1 of the second light emitting unit 1241 is 60°, and the second angle α2 of the third light emitting unit 1242 is 120°.

[0054] In some embodiments, the bisector of the angle formed by the third light-emitting surface 128 of the sixth light-emitting unit 1245 and the fifth light-emitting surface 130 of the seventh light-emitting unit 1246 is perpendicular to the second direction.

[0055] In the embodiment of the present application, the sixth light-emitting unit 1245 and the seventh light-emitting unit 1246 are adjacently arranged in the octagonal structure, and the angle bisector of the angle formed by the third light-emitting surface 128 of the sixth light-emitting unit 1245 and the fifth light-emitting surface 130 of the seventh light-emitting unit 1246 is perpendicular to the second direction, then the angle formed by the third light-emitting surface 128 of the sixth light-emitting unit 1245 and the second direction and the angle formed by the fifth light-emitting surface 130 of the seventh light-emitting unit 1246 and the second direction are complementary, so that in the octagonal structure The third light-emitting surface 128 of the sixth light-emitting unit 1245 is arranged to face the center of the octagonal structure, and the fifth light-emitting surface 130 of the seventh light-emitting unit 1246 is arranged to face the center of the octagonal structure. The third light-emitting surface 128 of the sixth light-emitting unit 1245 and the fifth light-emitting surface 130 of the seventh light-emitting unit 1246 have a larger light-emitting area, which can provide more light sources for the octagonal structure, thereby improving the overall brightness of the backlight module 100, so that the backlight module 100 has a better display effect.

[0056] Optionally, in some embodiments, the third light-emitting surface 128 of the sixth light-emitting unit 1245 has a third angle α3 with the second direction, the fifth light-emitting surface 130 of the seventh light-emitting unit 1246 has a fourth angle α4 with the second direction, the third angle and the fourth angle are complementary angles, and the third angle α3 satisfies α3>90°, and the fourth angle α4 satisfies α4<90°.

[0057] In the embodiment of the present application, when the third angle and the fourth angle are complementary angles, the third light-emitting surface 128 with a larger light-emitting area in the sixth light-emitting unit 1245 is arranged facing the center of the octagonal structure, and the fifth light-emitting surface 130 with a larger light-emitting area in the seventh light-emitting unit 1246 is arranged facing the center of the octagonal structure, so that the sixth light-emitting unit 1245 and the seventh light-emitting unit 1246 can provide more light sources for the octagonal structure, thereby improving the overall brightness of the backlight module 100. Furthermore, the third light-emitting surface 128 of the sixth light-emitting unit 1245 is arranged facing the center of the octagonal structure, and among the light sources provided by the sixth light-emitting unit 1245 for the octagonal structure, the component parallel to the first direction is greater than the component parallel to the second direction, so that more light sources parallel to the first direction are provided for the octagonal structure. The fifth light-emitting surface 130 with a larger light-emitting area in the seventh light-emitting unit 1246 is arranged to face the center of the octagonal structure. Among the light sources provided by the seventh light-emitting unit 1246 for the octagonal structure, the component parallel to the first direction is greater than the component parallel to the second direction, thereby providing the octagonal structure with more light sources parallel to the first direction.

[0058] Optionally, in some embodiments, the third angle α3 of the sixth light emitting unit 1245 is 135°, and the fourth angle α4 of the seventh light emitting unit 1246 is 45°. In other embodiments, the third angle α3 of the sixth light emitting unit 1245 is 150°, and the fourth angle α4 of the seventh light emitting unit 1246 is 30°. In still other embodiments, the third angle α3 of the sixth light emitting unit 1245 is 120°, and the fourth angle α4 of the seventh light emitting unit 1246 is 60°.

[0059] In some embodiments, the first light emitting surface 126 of the fourth light emitting unit 1243 , the first light emitting surface 126 of the fifth light emitting unit 1244 , the first light emitting surface 126 of the eighth light emitting unit 1247 and the first light emitting surface 126 of the ninth light emitting unit 1248 are all perpendicular to the second direction.

[0060] In an embodiment of the present application, the first light-emitting surface 126 of the fourth light-emitting unit 1243, the first light-emitting surface 126 of the fifth light-emitting unit 1244, the first light-emitting surface 126 of the eighth light-emitting unit 1247 and the first light-emitting surface 126 of the ninth light-emitting unit 1248 are all perpendicular to the second direction, then the first light-emitting surface 126 with a larger light-emitting area in the fourth light-emitting unit 1243, the first light-emitting surface 126 with a larger light-emitting area in the fifth light-emitting unit 1244, the first light-emitting surface 126 with a larger light-emitting area in the eighth light-emitting unit 1247 and the first light-emitting surface 126 with a larger light-emitting area in the ninth light-emitting unit 1248 are all arranged to face the interior of the octagonal structure, so that the fourth light-emitting unit 1243, the fifth light-emitting unit 1244, the eighth light-emitting unit 1247 and the ninth light-emitting unit 1248 can provide more light sources for the octagonal structure, thereby improving the overall brightness of the backlight module 100.

[0061] It can be understood that in some embodiments, the first light-emitting surface 126 of the first light-emitting unit 125 of each of the light-emitting groups 123, the first light-emitting surface 126 of the fourth light-emitting unit 1243, the first light-emitting surface 126 of the fifth light-emitting unit 1244, the first light-emitting surface 126 of the eighth light-emitting unit 1247 and the first light-emitting surface 126 of the ninth light-emitting unit 1248 are parallel to each other, and the first light-emitting surface 126 of the first light-emitting unit 125 is perpendicular to the second direction.

[0062] In the embodiment of the present application, the first light-emitting surface 126 of the first light-emitting unit 125 is perpendicular to the second direction and the first light-emitting unit 125 is arranged inside the octagonal structure. In the light source provided by the first light-emitting unit 125 for the octagonal structure, the component parallel to the first direction is smaller than the component parallel to the second direction, and the first light-emitting unit 125 can provide more light sources parallel to the second direction for the octagonal structure. In the light source provided by the second light-emitting unit 1241, the third light-emitting unit 1242, the sixth light-emitting unit 1245 and the seventh light-emitting unit 1246 for the octagonal structure, the component parallel to the first direction is larger than the component parallel to the second direction, and the first light-emitting surface 126 of the first light-emitting unit 125 is arranged perpendicular to the second direction, which is conducive to compensating for the deficiency of the light source component of the octagonal structure in the second direction, so that the octagonal structure has uniform brightness, and then improves the uniformity of the overall brightness of the backlight module 100, so that the backlight module 100 has a better display effect.

[0063] See also Figure 2Optionally, in some embodiments, the first light-emitting chains 121 and the second light-emitting chains 122 are alternately arranged in sequence along the first direction and connected in pairs, and the first light-emitting chains 121 and the second light-emitting chains 122 each include a plurality of light-emitting groups 123 arranged in the second direction and connected in sequence, each of the light-emitting groups 123 includes eight light-emitting units and a first light-emitting unit 125, and the eight light-emitting units form an octagonal structure, and the first light-emitting unit 125 is located in the octagonal structure. Then, along the first direction, the light-emitting layer 120 includes a plurality of octagonal structures and a plurality of triangular structures (such as Figure 2 As shown in the dashed box D in the middle, the light-emitting layer 120 is a structure in which octagonal structures and triangular structures are alternately arranged; each of the octagonal structures includes a light-emitting group 123, and each of the triangular structures shares a light-emitting unit with three adjacent octagonal structures.

[0064] In the embodiment of the present application, the first light-emitting chains 121 and the second light-emitting chains 122 are alternately arranged in sequence along the first direction and connected in pairs, and the first light-emitting chains 121 and the second light-emitting chains 122 both include a plurality of light-emitting groups 123 arranged in the second direction and connected in sequence. Then, along the first direction, adjacent octagonal structures will share at least one light-emitting unit, and adjacent octagonal structures and triangular structures will share at least one light-emitting unit, so that each of the light-emitting units can provide a light source for at least one octagonal structure and one triangular structure, which is beneficial to improving the utilization rate of the light-emitting units and reducing the number of the light-emitting units under the same light-emitting area, so as to reduce the production cost of the backlight module 100. By adjusting the distance between each of the light-emitting units in the octagonal structure and the first angle of the second light-emitting unit 1241, the second angle of the third light-emitting unit 1242, the third angle of the sixth light-emitting unit 1245 and the fourth angle of the seventh light-emitting unit 1246 in each of the octagonal structures, the octagonal structure and the triangular structure have uniform brightness, thereby improving the uniformity of the overall brightness of the backlight module 100, so that the backlight module 100 has a better display effect.

[0065] See also Figure 5 and Figure 6 The embodiment of the present application further provides a display device 200, which includes: a liquid crystal display panel 210 and a backlight module 100 provided in the present application, wherein the backlight module 100 is used to emit light toward the liquid crystal display panel 210 to provide backlight for the liquid crystal display panel 210.

[0066] In the embodiment of the present application, the backlight module 100 is used to provide backlight for the liquid crystal display panel 210, and the liquid crystal display panel 210 is used to receive the light emitted by the backlight module 100 and finally present a picture. The backlight display of the backlight module 100 is uniform, and can provide the liquid crystal display panel 210 with a backlight with uniform brightness, so that the liquid crystal display panel 210 can present a picture with uniform brightness, and the display device 200 has a good display effect.

[0067] Optionally, in some embodiments, the display device 200 also includes a back panel 240, a frame 220 and a plastic frame 230, the back panel 240 is used to support the backlight module 100 and the liquid crystal display panel 210, the frame 220 is used to accommodate the backlight module 100 and the liquid crystal display panel 210, and the plastic frame 230 is used to fix and support the liquid crystal display panel 210. It can be understood that the display device 200 may also include other components, and the other components of the display device 200 should not constitute a limitation on the display device 200 provided in the embodiment of the present application.

[0068] Optionally, in some embodiments, the backlight module 100 further includes a reflector 250, a diffuser 260 and an optical film 270. The reflector 250 may be, but is not limited to, arranged to fit the back plate 240. The optical film 270 and the diffuser 260 are sequentially arranged at intervals on the side of the liquid crystal display panel 210 facing the light-emitting layer 120. The reflector 250 is used to direct the light irradiated from the backlight module 100 to the reflector 250 toward the liquid crystal display panel 210 of the display device 200 to which the backlight module 100 is applied. The diffuser 260 is used to evenly reflect and scatter the light emitted by the light-emitting unit, thereby ensuring the consistency of the screen brightness of the display device 200. The optical film 270 is used to enhance the display brightness and display effect of the display device 200.

[0069] See also Figure 7 and Figure 8 The embodiment of the present application also provides an electronic device 300, characterized in that the electronic device 300 includes: a shell 310, a display device 200 provided in the present application and a processor 320, the shell 310 is used to accommodate the display device 200, and the processor 320 is electrically connected to the display device 200 for controlling the display device 200 to display.

[0070] In an embodiment of the present application, the shell 310 is used to protect the display device 200 from impact and dust. The processor 320 is electrically connected to the display device 200 to control the display device 200 to display a picture. The display device 200 has a good display effect, so that the electronic device 300 has a good display effect, which is beneficial to improving the user experience.

[0071] Optionally, in some embodiments, the electronic device 300 further includes a memory 330, which is electrically connected to the processor 320, and is used to store program codes required for the processor 320 to run, control the display content of the liquid crystal display panel 210, etc.

[0072] Optionally, the memory 330 may include a volatile memory (Volatile Memory), such as a random access memory (Random Access Memory, RAM); the memory 330 may also include a non-volatile memory (NVM), such as a read-only memory (Read-Only Memory, ROM), a flash memory (Flash Memory, FM), a hard disk drive (Hard Disk Drive, HDD) or a solid-state drive (SSD). The memory 330 may also include a combination of the above-mentioned types of memory 330.

[0073] Optionally, the processor 320 includes one or more general-purpose processors, wherein the general-purpose processor can be any type of device capable of processing electronic instructions, including a central processing unit (CPU), a microprocessor, a microcontroller, a main processor, and a controller, etc. The processor 320 is used to execute various types of digital storage instructions, such as software or firmware programs stored in the memory 330, which enables the computing device to provide a wide variety of services.

[0074] Optionally, the electronic device 300 may be, but is not limited to, a portable electronic device 300 such as a smart phone, a tablet computer, a laptop computer, a desktop computer, a smart bracelet, an e-reader, a game console, etc.

[0075] Mentioning "embodiment" and "implementation method" in this application means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrases in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments. In addition, it should also be understood that the features, structures or characteristics described in the various embodiments of the present application can be arbitrarily combined to form another embodiment that does not deviate from the spirit and scope of the technical solution of the present application, provided that there is no contradiction between them.

[0076] Finally, it should be noted that the above implementation modes are only used to illustrate the technical solution of the present application and are not intended to limit it. Although the present application has been described in detail with reference to the above preferred implementation modes, a person of ordinary skill in the art should understand that the technical solution of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application.

Claims

1. A backlight module, characterized in that: The backlight module comprises: a driving substrate; and A light-emitting layer, wherein the light-emitting layer is arranged on the driving substrate, the light-emitting layer includes a plurality of first light-emitting chains and a plurality of second light-emitting chains, the first light-emitting chains and the second light-emitting chains are alternately arranged in sequence along a first direction and are connected in pairs, the first light-emitting chain and the second light-emitting chain each include a plurality of light-emitting groups arranged in a second direction and connected in sequence, each of the light-emitting groups includes a sub-light-emitting group and a first light-emitting unit, each sub-light-emitting group includes eight light-emitting units, and the eight light-emitting units form an octagonal structure, the first light-emitting unit is located in the octagonal structure, and any two adjacent sub-light-emitting groups share two light-emitting units; each of the octagonal structures of the first light-emitting chain and the two adjacent octagonal structures on the second light-emitting chain are The first direction intersects with the second direction; the sub-light-emitting group includes a second light-emitting unit, a third light-emitting unit, a fourth light-emitting unit, a fifth light-emitting unit, a sixth light-emitting unit, a seventh light-emitting unit, an eighth light-emitting unit and a ninth light-emitting unit, and the second light-emitting unit, the third light-emitting unit, the fourth light-emitting unit, the fifth light-emitting unit, the sixth light-emitting unit, the seventh light-emitting unit, the eighth light-emitting unit and the ninth light-emitting unit are sequentially arranged along the corners of the octagonal structure, and the second light-emitting unit, the third light-emitting unit, the sixth light-emitting unit and the seventh light-emitting unit of each sub-light-emitting group of the first light-emitting chain are shared with the adjacent second light-emitting chain, and the fourth light-emitting unit, the fifth light-emitting unit, the eighth light-emitting unit and the ninth light-emitting unit of each sub-light-emitting group are shared with the adjacent second light-emitting chain. The light-emitting unit and the ninth light-emitting unit are shared with adjacent sub-light-emitting groups; the first light-emitting unit, the fourth light-emitting unit, the fifth light-emitting unit, the eighth light-emitting unit and the ninth light-emitting unit of each light-emitting group have a first light-emitting surface and a second light-emitting surface connected by bending, and the area of ​​the first light-emitting surface is larger than the area of ​​the second light-emitting surface; the first light-emitting surface of the first light-emitting unit, the first light-emitting surface of the fourth light-emitting unit, the first light-emitting surface of the fifth light-emitting unit, the first light-emitting surface of the eighth light-emitting unit and the first light-emitting surface of the ninth light-emitting unit of each light-emitting group are parallel to each other; the second light-emitting unit and the sixth light-emitting unit of each light-emitting group have a third light-emitting surface and a fourth light-emitting surface connected by bending, and the area of ​​the third light-emitting surface is larger than the area of ​​the fourth light-emitting surface The third light-emitting surface of the second light-emitting unit is parallel to the third light-emitting surface of the sixth light-emitting unit; the third light-emitting unit and the seventh light-emitting unit of each light-emitting group have a fifth light-emitting surface and a sixth light-emitting surface connected by a bending, the area of ​​the fifth light-emitting surface is larger than the area of ​​the sixth light-emitting surface, and the fifth light-emitting surface of the third light-emitting unit is parallel to the fifth light-emitting surface of the seventh light-emitting unit; the third light-emitting surface of the second light-emitting unit is arranged facing the center of the octagonal structure, the fifth light-emitting surface of the third light-emitting unit is arranged facing the center of the octagonal structure, the third light-emitting surface of the sixth light-emitting unit is arranged facing the center of the octagonal structure, and the fifth light-emitting surface of the seventh light-emitting unit is arranged facing the center of the octagonal structure.

2. The backlight module according to claim 1, characterized in that: The distances between the first light emitting unit and the fourth light emitting unit, the fifth light emitting unit, the eighth light emitting unit and the ninth light emitting unit are all equal.

3. The backlight module according to claim 1, characterized in that: The distances between the first light emitting unit and the second light emitting unit, the sixth light emitting unit, the third light emitting unit and the seventh light emitting unit are all equal.

4. The backlight module according to claim 1, characterized in that: The bisector of the angle formed by the third light-emitting surface of the second light-emitting unit and the fifth light-emitting surface of the third light-emitting unit is perpendicular to the second direction; the bisector of the angle formed by the third light-emitting surface of the sixth light-emitting unit and the fifth light-emitting surface of the seventh light-emitting unit is perpendicular to the second direction.

5. The backlight module according to claim 1, characterized in that: The first light emitting surface of the fourth light emitting unit, the first light emitting surface of the fifth light emitting unit, the first light emitting surface of the eighth light emitting unit and the first light emitting surface of the ninth light emitting unit are all perpendicular to the second direction.

6. A display device, characterized in that: The display device comprises: Liquid crystal display panel; and The backlight module according to any one of claims 1 to 5 is used to emit light toward the liquid crystal display panel to provide backlight for the liquid crystal display panel.

7. An electronic device, characterized in that: The electronic device comprises: case; The display device according to claim 6, wherein the housing is used to accommodate the display device, and A processor is electrically connected to the display device and is used to control the display device to display.

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