Backlight module and display device

Abstract

The present invention relates to a backlight module and a display device. The backlight module includes a light source structure and an optical film. The light source structure includes a substrate, a plurality of light-emitting units, and an encapsulation body. The plurality of light-emitting units are arranged on the substrate. The encapsulation body covers the plurality of light-emitting units, wherein the encapsulation body has a plurality of protrusions. The optical film is disposed above the light source structure, wherein the optical film and the plurality of protrusions of the encapsulation body contact each other.

Description

Technical Field

[0001] The present invention relates to a light source module and applications thereof, and in particular to a backlight module and a display device. Background Art

[0002] Generally, the light source used in a direct-lit backlight module mainly includes a substrate, a plurality of light-emitting diodes arrayed on the substrate, and a packaging adhesive covering the light-emitting diodes. After the light generated by the light-emitting diodes exits the packaging adhesive, it will further pass through an optical film to be mixed to form a surface light source.

[0003] However, in addition to the optical film, there are other components such as the display panel above the encapsulant. Therefore, the optical film above the encapsulant is often adsorbed to the surface of the encapsulant, which will seriously affect the appearance and uniformity of the backlight module and the display device. Summary of the Invention

[0004] Therefore, an object of the present invention is to provide a backlight module and a display device, wherein the problem of an optical film in the backlight module and the display device being adsorbed to the light source structure and affecting the appearance can be avoided through the design of the light source structure.

[0005] In accordance with the above-mentioned objectives of the present invention, a backlight module is provided. The backlight module includes a light source structure and an optical film. The light source structure includes a substrate, a plurality of light-emitting units, and an encapsulation body. The plurality of light-emitting units are arranged on the substrate. The encapsulation body covers the plurality of light-emitting units, wherein the encapsulation body has a plurality of protrusions. The optical film is disposed above the light source structure, wherein the optical film and the plurality of protrusions of the encapsulation body contact each other.

[0006] According to an embodiment of the present invention, the protruding portion of the package body has a plurality of triangular prism structures, pyramid prism structures or arc prism structures spliced ​​together.

[0007] According to an embodiment of the present invention, the package body further includes a plurality of recessed portions, and the plurality of protruding portions and the recessed portions are alternately arranged.

[0008] According to an embodiment of the present invention, the light emitting unit is correspondingly disposed directly below the recessed portion.

[0009] According to an embodiment of the present invention, the light emitting unit is correspondingly disposed directly below the protruding portion.

[0010] According to one embodiment of the present invention, the light source structure further includes a plurality of partition walls disposed on a substrate, wherein the plurality of partition walls and the substrate together form a plurality of accommodation spaces, and the plurality of light-emitting units are correspondingly distributed in the plurality of accommodation spaces. The package body includes a plurality of packaging units, each of which is correspondingly disposed in the plurality of accommodation spaces and covers the plurality of light-emitting units. The height of some packaging units is greater than the height of the partition walls to form the protrusions, the height of some packaging units is less than the height of the partition walls, and the height of some other packaging units is equal to the height of the partition walls.

[0011] According to an embodiment of the present invention, the packaging units having a height greater than the partition walls, the packaging units having a height less than the partition walls, and the packaging units having a height equal to the partition walls are alternately arranged.

[0012] According to one embodiment of the present invention, the light source structure further includes a plurality of partition walls disposed on a substrate, wherein the plurality of partition walls and the substrate together form a plurality of accommodating spaces, and the plurality of light-emitting units are correspondingly distributed in the plurality of accommodating spaces. The package body includes a plurality of packaging units, each of which is correspondingly disposed in the accommodating spaces and covers the plurality of light-emitting units. The partition walls are disposed between two adjacent protrusions.

[0013] According to one embodiment of the present invention, the surface of the protrusion is a tension surface formed by capillary phenomenon.

[0014] In accordance with the above-mentioned purpose of the present invention, a display device is further provided. The display device comprises the above-mentioned backlight module and a display panel. The display panel is disposed above the backlight module.

[0015] In accordance with the above-mentioned objectives of the present invention, a display device is further provided. The display device comprises the above-mentioned backlight module and a display panel. The display panel is disposed above the backlight module. The height of the packaging unit located at the edge of the display panel is less than the height of the partition wall.

[0016] As can be seen from the above, the present invention primarily incorporates a protrusion on the light source structure's encapsulation. This not only facilitates light uniformity but also resolves the problem of the optical film adhering to the light source structure. Furthermore, the encapsulation's fill height can be adjusted to meet light output requirements, thereby achieving improved light uniformity for the entire backlight module and display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to make the above and other objects, features, advantages and embodiments of the present invention more apparent, the following description will now be made with reference to the accompanying drawings:

[0018] Figure 1 FIG2 is a side view schematically illustrating a direct-lit backlight module according to a first embodiment of the present invention;

[0019] Figure 2 FIG2 is a side view schematically illustrating a direct-lit backlight module according to a second embodiment of the present invention;

[0020] Figure 3 FIG2 is a side view schematically illustrating a direct-lit backlight module according to a third embodiment of the present invention;

[0021] Figure 4A FIG2 is a partial side view showing a light source structure according to a fourth embodiment of the present invention;

[0022] Figure 4B and Figure 4C FIG2 is a schematic diagram illustrating a light emitting state of a light source structure according to a fourth embodiment of the present invention;

[0023] Figure 4D is a side view schematically illustrating another light source structure according to a fourth embodiment of the present invention;

[0024] Figure 5 FIG2 is a side view schematically illustrating a direct-lit backlight module according to a fifth embodiment of the present invention;

[0025] Figure 6A is a top view illustrating a light source structure according to a sixth embodiment of the present invention;

[0026] Figure 6B It is along Figure 6A Schematic diagram of the cross section cut by the AA section line in FIG;

[0027] Figure 6C It is along Figure 6A Schematic diagram of the cross section taken by the BB section line in FIG;

[0028] Figure 7 FIG. 1 is a schematic side view of a display device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0029] The features and technical contents of the related patent applications of the present invention will be clearly presented in the detailed description of the preferred embodiments with reference to the accompanying drawings. Before the detailed description, it should be noted that similar elements are represented by the same numbers.

[0030] Please refer to Figure 1 , which is a side schematic diagram of a direct-lit backlight module according to a first embodiment of the present invention. The backlight module 100 of this embodiment includes a light source structure 110 and at least one optical film (e.g., four optical films 200 in the figure). The optical film 200 is disposed above the light source structure 110, so that light generated by the light source structure 110 can pass through the optical film 200 and be emitted from the optical film 200.

[0031] Please continue to refer to Figure 1 The light source structure 110 includes a substrate 111, a plurality of light emitting units 112, and a package body 113. The plurality of light emitting units 112 are arranged on the substrate 111. The package body 113 covers the plurality of light emitting units 112, wherein the package body 113 has a plurality of protrusions 113a. The optical film 200 is arranged above the light source structure 110, wherein the optical film 200 is in contact with the protrusions 113a of the package body 113. Figure 1 In the embodiment, the protrusion 113a of the package body 113 comprises a plurality of interconnected triangular prism structures. Thus, when the optical film 200 is placed on the light source structure 110, the optical film 200 closest to the package body 113 contacts only the protrusion 113a of the package body 113, leaving an air gap between any two adjacent protrusions 113a and the optical film 200. This prevents the optical film 200 from adhering to the package body 113.

[0032] In the present invention, the protrusion of the package body can also have different shapes. For example Figure 2 As shown, Figure 2 FIG. 1 is a side view schematically illustrating a direct-lit backlight module according to a second embodiment of the present invention. Figure 2 The structure of the backlight module 300 is similar to Figure 1 The structures of the backlight module 100 shown are substantially the same, and the only difference is that the light source structure 310 of the backlight module 300 has a different structural design. Figure 2 As shown, the light source structure 310 includes a substrate 311, a plurality of light-emitting units 312 and a package body 313. The plurality of light-emitting units 312 are arranged on the substrate 311. The package body 313 covers the plurality of light-emitting units 312, wherein the package body 313 has a plurality of protrusions 313a. In this embodiment, the protrusions 313a of the package body 313 have an arc prism structure that is spliced ​​with each other. Therefore, when the optical film 200 is placed on the light source structure 310, the optical film 200 closest to the package body 313 only contacts the protrusions 313a of the package body 313, so an air gap can also be formed between any two adjacent protrusions 313a and the optical film 200, thereby preventing the optical film 200 from being adsorbed on the package body 313. It should be noted that the protrusions of the package body may have, for example, Figure 1 and Figure 2 In addition to the shapes of the embodiments shown, other shapes such as pyramidal prism structure, strip structure or particle structure may also be used. Figure 3As shown, the surface of the protrusion 413a (convex arc surface) and the surface of the recessed portion 413b (concave arc surface) form a continuous sinusoidal waveform surface. In this way, when the optical film 200 is placed on the light source structure 410, the optical film 200 closest to the package body 413 only contacts the protrusion 413a of the package body 413, and the recessed portion 413b can form an air gap with the optical film 200, thereby preventing the optical film 200 from being adsorbed on the package body 413.

[0033] In other embodiments of the present invention, the package body may also be arranged corresponding to the position distribution of the light emitting units. Figure 3 As shown, Figure 3 FIG. 1 is a side view schematically showing a direct-lit backlight module according to a third embodiment of the present invention. Figure 3 The structure of the backlight module 400 is similar to Figure 1 The structures of the backlight module 100 shown are substantially the same, and the only difference is that the light source structure 410 of the backlight module 400 has a different structural design. Figure 3 As shown, the light source structure 410 includes a substrate 411, a plurality of light-emitting units 412, and a package body 413. The plurality of light-emitting units 412 are arranged on the substrate 411. The package body 413 covers the plurality of light-emitting units 412, wherein the package body 413 has a plurality of protrusions 413a and a plurality of recesses 413b.

[0034] like Figure 3 As shown, in this embodiment, a plurality of protrusions 413a and a plurality of recesses 413b are arranged in an alternating manner, and the light-emitting units 412 are correspondingly arranged directly below the protrusions 413a. In other words, the protrusions 413a are located directly above the light-emitting units 412, while the recesses 413b are located between any two adjacent light-emitting units 412. Since the plurality of light-emitting units 412 are arranged in an array, and the light directly above the light-emitting units 412 is stronger than the light between any two adjacent light-emitting units 412, the light-diverging function of the protrusions 413a can be used to disperse the higher-intensity light emitted from directly above the light-emitting units 412, while the recesses 413b can be used to guide the light to the dark area between any two adjacent light-emitting units 412, thereby achieving the effect of uniform light generation by the light source structure 410.

[0035] In other embodiments, the protrusion and the recess of the package body may have different shapes. Figure 4A , Figure 4A FIG. 1 is a partial side view of a light source structure according to a fourth embodiment of the present invention. Figure 4A The light source structure 420 shown is Figure 3 The structure of the light source structure 410 is substantially the same as that of the light source structure 410, and the only difference is that the package body 423 of the light source structure 420 has a different shape design. Figure 4A As shown, the light source structure 420 includes a substrate 421, a plurality of light emitting units 422 and a package body 423. The plurality of light emitting units 422 are arranged on the substrate 421. The package body 423 covers the plurality of light emitting units 422, wherein the package body 423 has a plurality of protrusions 423a and a plurality of recesses 423b. The light emitting units 422 are correspondingly arranged below the protrusions 423a. Figure 4A As shown, the protrusion 423a of this embodiment has an arc surface drawn according to the first circle center R1, and the recessed portion 423b has an arc surface drawn according to the second circle center R2. Taking the position of the light-emitting unit 422 as a reference, the first circle center R1 is located on the side facing away from the light-emitting surface of the light-emitting unit 422. In other words, the light-emitting unit 422 is located between the arc surface of the protrusion 423a and the first circle center R1. The second circle center R2 is located on the plane where the light-emitting unit 422 is located, for example Figure 4A The second center R2 of the arc surface of the recessed portion 423b located on the left side of the light-emitting unit 422 is located on the right side of the light-emitting unit 422. Similarly, the second center R2 of the arc surface of the recessed portion 423b located on the right side of the light-emitting unit 422 is located on the left side of the light-emitting unit 422.

[0036] Please also refer to Figures 4A to 4C ,in Figure 4B and Figure 4C This is a schematic diagram illustrating the light emission state of the light source structure according to the fourth embodiment of the present invention. Since the refractive index of the package body 423 is greater than that of air, when the light of each light emitting unit 422 is emitted from the protrusion 423a, in addition to the normal light emitted in the direction parallel to the optical axis, the light with a smaller emission angle is dispersed in the direction deviating from the normal line, and the farther the light is from the optical axis, the greater the deviation from the normal line is. Figure 4B For point A on the protrusion 423a, the light emitted by the light-emitting unit 422 enters from the lower right of the normal line L1 and exits from the upper left, thereby directing the light to the region R to the left of the normal line L1. However, because the intensity of the light directed to this region R is not as high as the intensity of the light directly above the LED, a dark area is easily generated in the region R.

[0037] In order to solve the dark area problem, the light of each light emitting unit 422 with a larger angle is emitted from the concave portion 423b and disperses in a direction deviating from the normal line after passing through the normal line. Figure 4BAt point B located in the recessed portion 423b, light emitted by the light-emitting unit 422 enters from the lower left of the normal line L2 and exits from the upper right, directing the light toward the region R to the right of the normal line L2. Therefore, the recessed portion 423b can further guide the oblique light emitted by each light-emitting unit 422 toward the dark region R between any two adjacent light-emitting units 422, and toward the light-emitting surface of the direct-lit backlight module, thereby reducing the number of light-emitting units while achieving a good light uniformity effect.

[0038] In another embodiment, for example Figure 4D As shown, the light-emitting unit 422 can also be positioned below the recessed portion 423b instead of directly below the protruding portion 423a. However, the adsorption problem can still be solved by forming an air gap between any two adjacent protruding portions 423a and the optical film 200. In addition, while the light emission angle directly above the light-emitting unit 422 remains unchanged, the remaining light is directed toward the dark area R between any two adjacent light-emitting units 422 on the periphery, achieving a good light uniformity effect.

[0039] In the present invention, the light source structure can have different structural designs. Figure 5 , Figure 5 FIG. 5 is a side view of a direct-lit backlight module according to a fifth embodiment of the present invention. The structure of the backlight module 500 of this embodiment is similar to Figure 1 The structures of the backlight module 100 shown are substantially the same, and the only difference is that the light source structure 510 of the backlight module 500 has a different structural design. Figure 5 As shown, the light source structure 510 includes a substrate 511, a plurality of partition walls 512, a plurality of light-emitting units 513 and a package body 514. The plurality of partition walls 512 are arranged on the substrate 511 and form a plurality of accommodating spaces 521 with the substrate 511. The light-emitting units 513 are arranged on the substrate 511 and are located in the accommodating spaces 521. For example, each accommodating space 521 in the present invention may preferably include an array of N*N light-emitting units 513. In this embodiment, each accommodating space 521 is provided with four light-emitting units 513 (i.e., 2*2 light-emitting units 513), but the present invention is not limited thereto. In other embodiments, the number of light-emitting units 513 in each accommodating space 521 may be determined according to demand.

[0040] like Figure 5As shown, the package body 514 includes a plurality of package units 515, each of which is arranged in the accommodating space 521 and covers the light-emitting unit 513. The height of the package unit 515 is higher than the height of the partition wall 512, and the portion of the package unit 515 that is higher than the top of the partition wall 512 is the protrusion 515a. In this embodiment, the surface of the protrusion 515a of each package unit 515 is a tension surface formed by capillary phenomenon. Therefore, when the optical film 200 is placed on the light source structure 510, the optical film 200 closest to the package body 514 only contacts the protrusion 515a of the package unit 515, and the top of the partition wall 512 can form an air gap with the optical film 200, so as to achieve the effect of preventing the optical film 200 from being adsorbed on the package body 514. On the other hand, the protrusion 515 a is designed to have a light diverging function, so it can disperse the light above the partition wall 512 to compensate the light to the position above the partition wall 512 with relatively low brightness, thereby improving the light uniformity of the entire light source structure 510.

[0041] Please also refer to Figure 6A 、 Figure 6B and Figure 6C ,in Figure 6A FIG. 1 is a top view showing a light source structure according to a sixth embodiment of the present invention. Figure 6B Along Figure 6A Schematic diagram of the section cut by the AA section line in, Figure 6C Along Figure 6A Schematic cross-sectional view taken along line BB in FIG. The light source structure 600 of this embodiment includes a substrate 610, a plurality of partition walls 620, a plurality of light-emitting units 630, and a package body 640. The plurality of partition walls 620 are disposed on the substrate 610 and form a plurality of accommodation spaces 611 together with the substrate 610. The light-emitting units 630 are disposed on the substrate 610 and are located in the accommodation spaces 611. In one embodiment, the package body 640 includes a plurality of packaging units (e.g., packaging unit 641, packaging unit 642, and packaging unit 643), and the packaging unit 641, packaging unit 642, and packaging unit 643 are each disposed in the accommodation space 611 and cover the light-emitting units 630.

[0042] like Figure 6B and Figure 6CAs shown, the height of the packaging unit 641 is higher than the height of the partition wall 620, and the portion of the packaging unit 641 that is higher than the top of the partition wall 620 is the protrusion 641a. The height of the packaging unit 642 is equal to the height of the partition wall 620. The height of the packaging unit 643 is less than the height of the partition wall 620. In this embodiment, the packaging unit 641 whose height is greater than the partition wall 620, the packaging unit 643 whose height is less than the partition wall 620, and the packaging unit 642 whose height is equal to the partition wall 620 are staggered. In some application examples, the heights of the packaging unit 641, the packaging unit 642, and the packaging unit 643 can be designed according to actual needs, so the brightness of the light-emitting unit 630 can be adjusted by changing the heights of these packaging units, and the staggered design of the heights of the packaging units can better ensure that the optical film 200 is stably supported by the protrusion 641a. When Figure 5 When the optical film 200 is placed on the light source structure 600, the portion of the optical film 200 closest to the packaging unit 641 contacts only the protrusion 641a of the packaging unit 641, creating an air gap between the top of the partition wall 620 and the optical film 200. This prevents the optical film 200 from being attached to the packaging body 640. Furthermore, the light-scattering function of the protrusion 641a of the packaging unit 641 disperses the higher-intensity light emitted directly above the light-emitting unit 630. At the same time, the packaging unit 643, which is shorter than the partition wall 620, transmits the light to the dark area and emits it in the forward direction, thereby achieving the effect of producing uniform light across the entire light source structure 600.

[0043] See also Figure 7 , Figure 7 1 is a side view of a display device according to an embodiment of the present invention. The display device 700 of this embodiment mainly includes a backlight module formed by a light source structure 800 and an optical film 200, and a display panel 710 disposed on the optical film 200. The structure of the light source structure 800 is similar to that of the display device 700. Figure 5 The light source structure 510 shown is substantially the same, the only difference being that the package body 840 of the light source structure 800 has a different structural design. Figure 7 As shown, the light source structure 800 includes a substrate 810, a plurality of partition walls 820, a plurality of light-emitting units 830, and a package body 840. The plurality of partition walls 820 are disposed on the substrate 810 and form a plurality of accommodation spaces 811 with the substrate 810. The light-emitting units 830 are disposed on the substrate 810 and located in the accommodation spaces 811.

[0044] like Figure 7As shown, the packaging body 840 includes a plurality of packaging units (such as packaging unit 841 and packaging unit 842). Among them, the height of the packaging unit 842 is less than the height of the partition wall 820, and the packaging unit 842 is correspondingly arranged at the edge of the display panel 710. The height of the packaging unit 841 is higher than the height of the partition wall 820, and the portion higher than the top of the partition wall 820 forms a protrusion 841a. With the help of the design of the packaging unit 841 and the packaging unit 842, in addition to avoiding the phenomenon of the optical film 200 being adsorbed on the light source structure 800, the packaging unit 842 located at the edge of the display panel 710 can also solve the problem of blue edges appearing at the edge of the display area. It should be noted that if there is no blue edge problem at the edge of the display area, there is no need to design the packaging unit 842 whose height is lower than the partition wall 820, and it can be directly used, for example Figure 5 The light source structure 510 shown. On the other hand, Figure 7 The embodiment of the present invention is described by taking the light source structure 800 as an example, but it is not intended to limit the present invention. Figure 1 Light source structure 110, Figure 2 Light source structure 310, Figure 3 Light source structure 410, Figure 5 Light source structure 510, Figure 6A The light source structure 600 can be applied to a display device to produce the same effect.

[0045] As can be seen from the aforementioned embodiments of the present invention, the present invention primarily incorporates a protrusion on the light source structure's encapsulation. This not only facilitates light uniformity but also resolves the problem of the optical film adhering to the light source structure. Furthermore, the encapsulation's fill height can be adjusted based on light output requirements, thereby achieving improved light uniformity for the entire backlight module and display device.

[0046] Although the embodiments of the present invention have been disclosed above, they are not intended to limit the present invention. Any technician in the field should be able to make some changes and modifications without departing from the spirit and scope of the embodiments of the present invention. Therefore, the scope of protection of the embodiments of the present invention should be based on the attached claims.

[0047] Reference Signs List

[0048] 100: Backlight module

[0049] 110: Light source structure

[0050] 111: Substrate

[0051] 112: Light-emitting unit

[0052] 113: Encapsulation

[0053] 113a: protrusion

[0054] 200: Optical film

[0055] 300: Backlight module

[0056] 310: Light source structure

[0057] 311: Substrate

[0058] 312: Light-emitting unit

[0059] 313: Encapsulation

[0060] 313a: protrusion

[0061] 400: Backlight module

[0062] 410: Light source structure

[0063] 411: Substrate

[0064] 412: Light-emitting unit

[0065] 413: Encapsulation

[0066] 413a: protrusion

[0067] 413b: Depression

[0068] 420: Light source structure

[0069] 421: Substrate

[0070] 422: Light-emitting unit

[0071] 423: Encapsulation

[0072] 423a: protrusion

[0073] 423b: Depression

[0074] 500: Backlight module

[0075] 510: Light source structure

[0076] 511: Substrate

[0077] 512: Next door

[0078] 513: Light-emitting unit

[0079] 514: Encapsulation

[0080] 515: Encapsulation unit

[0081] 515a: protrusion

[0082] 521: Accommodation space

[0083] 600: Light source structure

[0084] 610: Substrate

[0085] 620: Next door

[0086] 630: Light-emitting unit

[0087] 640: Encapsulation

[0088] 641: Encapsulation unit

[0089] 641a: protrusion

[0090] 642: Encapsulation unit

[0091] 643: Encapsulation unit

[0092] 700: Display device

[0093] 710: Display panel

[0094] 800: Light source structure

[0095] 810: Substrate

[0096] 811: Accommodation Space

[0097] 820: Next door

[0098] 830: Light-emitting unit

[0099] 840: Encapsulation

[0100] 841: Encapsulation unit

[0101] 841a: protrusion

[0102] 842: Encapsulation unit

[0103] A: Point

[0104] B: Point

[0105] L1: Normal

[0106] L2: Normal

[0107] R1: First circle center

[0108] R2: The center of the second circle.

Claims

1. A backlight module, characterized in that: Include: A light source structure, wherein the light source structure comprises: substrate; a plurality of light-emitting units arranged on the substrate; and a package body covering the plurality of light-emitting units, wherein the package body has a plurality of protrusions; as well as An optical film is disposed above the light source structure, wherein the optical film is in contact with the plurality of protrusions of the package body, wherein: The light source structure further includes a plurality of partition walls disposed on the substrate, wherein the plurality of partition walls and the substrate together form a plurality of accommodating spaces, and the plurality of light-emitting units are correspondingly distributed in the plurality of accommodating spaces; The package body includes a plurality of package units, and the plurality of package units are respectively and correspondingly arranged in the plurality of accommodating spaces and cover the plurality of light-emitting units; The height of some of the plurality of package units is greater than the height of the partition wall to form the protrusion, the height of some of the plurality of package units is less than the height of the partition wall, and the height of another part of the plurality of package units is equal to the height of the partition wall; The portion of packaging units having a height greater than that of the partition wall, the portion of packaging units having a height less than that of the partition wall, and the other portion of packaging units having a height equal to that of the partition wall are alternately arranged.

2. The backlight module according to claim 1, wherein: The plurality of protrusions of the package body have a plurality of triangular prism structures, pyramid prism structures or arc prism structures spliced ​​together.

3. The backlight module according to claim 1, wherein: The package body further includes a plurality of recessed portions, and the plurality of protruding portions and the plurality of recessed portions are alternately arranged.

4. The backlight module according to claim 3, wherein: The plurality of light emitting units are correspondingly arranged directly below the plurality of recessed portions.

5. The backlight module according to claim 1, wherein: The plurality of light emitting units are correspondingly arranged directly below the plurality of protrusions.

6. The backlight module according to claim 1, wherein: The partition wall is correspondingly arranged between two adjacent protrusions.

7. The backlight module according to claim 6, wherein: The surface of the protrusion is a tension surface formed by capillary phenomenon.

8. A display device, characterized in that: Include: The backlight module according to any one of claims 1 to 7; and The display panel is arranged above the backlight module.

9. The display device according to claim 8, wherein The height of the packaging unit located at the edge of the display panel is smaller than the height of the partition wall.

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