Light-emitting module and display module

Abstract

A light-emitting module and a display module. The light-emitting module comprises a light source (112) assembly (11); the light source (112) assembly (11) comprises a substrate (111) and a light source (112), and the light source (112) is located on the substrate (111). The substrate (111) comprises a first region (Q1) and a second region (Q2), the first region (Q1) surrounds the second region (Q2), the light-emitting surface of the light source (112) located in the first region (Q1) is inclined, and faces the second region (Q2). The light-emitting module can make the light emitted by the light source (112) located at the edge inclined to the center of the light-emitting module, reduce the light at the edge of the light-emitting module, and thus weaken the light leakage phenomenon at the edge of the light-emitting module, which is beneficial to improve the display quality.

Description

Technical Field

[0001] This application relates to the field of display technology, and more particularly to a light-emitting module and a display module. Background Technology

[0002] In related technologies, the light-emitting module is a crucial component of liquid crystal display (LCD) devices, providing sufficient and uniform surface light sources. Typically, light-emitting modules are classified into edge-lit modules and direct-lit modules. A direct-lit module may include a frame, backplate, light source, diffuser plate, and optical film. The light source is located below the diffuser plate. The light emitted by the light source is transmitted through the diffuser plate and illuminates the LCD panel. However, some of the light emitted by the light source leaks through the gap between the frame of the light-emitting module and the diffuser plate, resulting in noticeable light leakage around the edges of the screen during normal display, significantly reducing the display quality. Summary of the Invention

[0003] This disclosure provides a light-emitting module and a display module.

[0004] According to a first aspect of the present disclosure, a light-emitting module is provided, comprising: a light source assembly;

[0005] The light source assembly includes a substrate and a light source. The light source is located on the substrate. The substrate includes a first region and a second region. The first region surrounds the second region. The light-emitting surface of the light source located in the first region is inclined and faces the second region.

[0006] In one embodiment, the light-emitting module further includes an optical film layer; the optical film layer is located on the light-emitting side of the light source assembly and is used to modulate the light emitted by the light source assembly;

[0007] The light source is located on the side of the substrate facing the optical film layer;

[0008] The light-emitting surface of the light source located in the second region faces the optical film layer and is parallel to the surface of the substrate facing the optical film layer;

[0009] On the same side of the substrate, for each light source located in the second region and adjacent to the boundary between the first and second regions, the following relationship is satisfied between a first distance perpendicular to the substrate between the first vertex of the light source near the first region and the surface of the optical film facing the light source, a second distance between the projection of the first vertex onto the optical film and the first edge of the optical film, and the emission angle of the light source.

[0010]

[0011] Where a is the second distance and b is the first distance. The light emission angle of the light source is denoted as .

[0012] In one embodiment,

[0013] In one embodiment, on the same side of the substrate, in the first region, in a direction from the first boundary of the first region away from the second region to the second boundary of the second region, there are at least two rows of light sources; the first boundary and the second boundary are adjacent and extend in the same direction.

[0014] In the first region, the tilt angle of the emitting surface of the light source closer to the first boundary is greater than the tilt angle of the emitting surface of the light source farther from the first boundary.

[0015] In one embodiment, in the first region, there are two rows of light sources in the direction from the first boundary to the second boundary.

[0016] In one embodiment, the second region is a rectangle;

[0017] In the first region, in each row of light sources, the light source located on the extension of the diagonal of the second region is tilted toward the center of the second region, and the remaining light sources are tilted toward the second region along the central axis of the second region, which is perpendicular to the extension direction of the row where the light source is located.

[0018] In one embodiment, on the same side of the substrate, in the first region, the third distance between the projection of the end of the light source near the first boundary onto the optical film and the first edge of the optical film, the fourth distance between the second vertex of the light source near the first boundary in the first region and the surface of the optical film facing the light source along a direction perpendicular to the substrate, the emission angle of the light source, and the tilt angle of the emission surface of the light source satisfy the following relationship:

[0019]

[0020] Where c is the third distance, d is the fourth distance, and ψ is the tilt angle of the light-emitting surface of the light source. The light emission angle of the light source is denoted as .

[0021] In one embodiment, the optical film layer includes a diffusion layer, the light-emitting module further includes a back plate, a frame, and an adhesive layer, and the light source assembly is located between the back plate and the diffusion layer, and is located on the side of the back plate facing the diffusion layer;

[0022] The adhesive frame is located on the back plate, and the adhesive layer is located between the diffusion layer and the adhesive frame;

[0023] The adhesive layer is made of an opaque material.

[0024] In one embodiment, the light source is used to emit light of a first wavelength;

[0025] The optical film layer further includes a light conversion layer located on the side of the diffusion layer near the light source. The light conversion layer is used to convert light of the first wavelength into light of the second wavelength and light of the third wavelength, and to allow some of the light of the first wavelength to pass through, so that the mixed light of the first wavelength light, the second wavelength light, and the third wavelength light passing through the light conversion layer is white light.

[0026] In one embodiment, the light conversion layer comprises a quantum dot material.

[0027] In one embodiment, the light-emitting module further includes a water-oxygen barrier layer; the water-oxygen barrier layer is located between the diffusion layer and the adhesive layer, and between the light conversion layer and the adhesive layer.

[0028] In one embodiment, the light-emitting module further includes a brightness enhancement film located on the side of the optical film layer away from the light source.

[0029] In one embodiment, the light source assembly further includes a bracket and a circuit board, the circuit board being located between the substrate and the light source, and the bracket being located between the circuit board and the light source.

[0030] In one embodiment, the height of the first end of the bracket is lower than the height of the second end, so that the emitting surface of the light source is tilted; and / or,

[0031] The light source assembly also includes conductive pads located below the second end of the bracket to tilt the light-emitting surface of the light source.

[0032] In one embodiment, the surface of the substrate in the first region that is close to the light source and the surface of the substrate in the second region that is close to the light source are located on the same plane.

[0033] According to a second aspect of the present disclosure, a display module is provided, comprising: a display panel and the above-described light-emitting module, wherein the display panel is located on the side of the light-emitting module away from the light source component. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of a light-emitting module according to an embodiment of the present disclosure;

[0035] Figure 2This is a schematic diagram of another light-emitting module according to an embodiment of the present disclosure;

[0036] Figure 3 This is a schematic diagram of another light-emitting module according to an embodiment of the present disclosure;

[0037] Figure 4 This is a schematic diagram of another light-emitting module according to an embodiment of the present disclosure;

[0038] Figure 5 This is a schematic diagram of another light-emitting module according to an embodiment of the present disclosure;

[0039] Figure 6 This is a schematic diagram of another light-emitting module according to an embodiment of the present disclosure;

[0040] Figure 7 This is a schematic diagram of another light-emitting module according to an embodiment of the present disclosure;

[0041] Figure 8 This is a schematic diagram of another light-emitting module according to an embodiment of the present disclosure;

[0042] Figure 9 This is a schematic diagram of the optical path of a light-emitting module according to an embodiment of the present disclosure;

[0043] Figure 10 This is a schematic diagram of the structure of a display module according to an embodiment of the present disclosure. Detailed Implementation

[0044] To make the above-mentioned objects, features and advantages of this disclosure more apparent and understandable, specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings.

[0045] This disclosure provides a light-emitting module. The light-emitting module, as shown in the embodiments, is... Figure 1 As shown, it includes: a light source assembly 11.

[0046] like Figure 1 As shown, the light source assembly 11 includes a substrate 111 and a light source 112, with the light source 112 located on the substrate 111.

[0047] like Figure 1 and Figure 2 As shown, the substrate 111 includes a first region Q1 and a second region Q2. The first region Q1 surrounds the second region Q2. The light-emitting surface of the light source 112 located in the first region Q1 is tilted and faces the second region Q2.

[0048] In this embodiment, since the first region Q1 surrounds the second region Q2, and the light-emitting surface of the light source 112 located in the first region Q1 is tilted and faces the second region Q2, the light emitted by the light source 112 located at the edge can be tilted towards the center of the light-emitting module, reducing the light at the edge of the light-emitting module, thereby weakening the light leakage phenomenon at the edge of the light-emitting module, which is beneficial to improving the display quality.

[0049] The above provides a brief introduction to the light-emitting module provided in the embodiments of this disclosure. The following provides a detailed description of the light-emitting module provided in the embodiments of this disclosure.

[0050] This disclosure also provides a light-emitting module. This light-emitting module, such as... Figure 1 As shown, it includes: a light source assembly 11, an optical film layer 12, a back plate 13, a frame 14, a brightness enhancement film 16, a water and oxygen barrier layer 17, and an adhesive layer 18.

[0051] In this embodiment, as Figure 1 As shown, the light source assembly 11 is located between the back plate 13 and the optical film layer 12, and is located on the side of the back plate 13 facing the optical film layer 12. The light-emitting side of the light source assembly 11 faces the optical film layer 12, that is, the optical film layer 12 is located on the light-emitting side of the light source assembly 11. The optical film layer 12 is used to modulate the light emitted by the light source assembly 11. For example, modulating the light emitted by the light source assembly 11 includes any one or a combination of diffusing the light emitted by the light source assembly 11 to make the emitted light uniform and adjusting the wavelength of the light emitted by the light source assembly 11.

[0052] In this embodiment, as Figure 1 As shown, the light source assembly 11 includes a substrate 111, a light source 112, a support 113, and a circuit board 114. The substrate 111 is located on the side of the back plate 13 facing the optical film layer 12, and serves to support the circuit board 114 and the light source 112, and also protects the circuit board 114 and the light source 112. The circuit board 114 includes conductive lines, which are electrically connected to the light source 112 through the support 113. The support 113 serves both a supporting and conductive function.

[0053] In this embodiment, as Figure 1 and Figure 2 As shown, the light source assembly 11 includes a plurality of light sources 112 arranged in an array on the substrate 111 and located on the side of the substrate 111 facing the optical film layer 12. Each light source 112 is used to emit light of a first wavelength, for example, each light source 112 is used to emit blue light, but is not limited thereto. For example, each light source 112 can also be used to emit white light.

[0054] In this embodiment, the light source 112 can be an LED chip. The LED chip can be a miniLED chip or a microLED chip, but is not limited to these.

[0055] In this embodiment, as Figure 1 and Figure 2 As shown, the substrate 111 includes a first region Q1 and a second region Q2, with the first region Q1 surrounding the second region Q2. That is, the first region Q1 is the edge region, and the second region Q2 is the central region. The second region Q2 is rectangular or approximately rectangular, and the outer edge of the first region Q1 is rectangular or approximately rectangular. The surface of the substrate 111 facing the light source 112 in the first region Q1 and the surface of the substrate 111 facing the light source 112 in the second region Q2 are located on the same plane. Compared to having them not on the same plane, this allows for a smaller thickness of the substrate 111, which is beneficial for making the display panel thinner. Furthermore, the material of the substrate 111 can be glass or metal, and it is not limited to metal, making the substrate processing less difficult.

[0056] In this embodiment, as Figure 1 As shown, the light-emitting surface of the light source 1121 located in the second region Q2 faces the optical film layer 12 and is parallel to the surface of the substrate 111 facing the optical film layer 12. The light-emitting surface of the light source is the surface of the LED chip emitting light.

[0057] In this embodiment, as Figure 3 As shown, the light-emitting surface F1 of the light source 1121 located in the second region Q2 is parallel to the surface of the substrate 111 facing the optical film layer 12, wherein the surface of the substrate 111 facing the optical film layer 12 is parallel to the surface of the optical film layer 12 facing the substrate 111, that is, the light-emitting surface F1 of the light source 1121 located in the second region Q2 is also parallel to the surface of the optical film layer 12 facing the substrate 111.

[0058] In this embodiment, as Figure 1 As shown, the light-emitting surface of the light source 112 located in the first region Q1 is tilted and faces the second region Q2. In this way, the light emitted by the light source 112 located at the edge of the light-emitting module can be tilted towards the center of the optical film layer 12, reducing the light at the edge of the optical film layer 12.

[0059] In this embodiment, as Figure 2 As shown, the substrate 111 has a rectangular or approximately rectangular surface facing the optical film layer 12. The substrate 111 includes a first side S1 and a second side S2 opposite each other in the first direction X, and a third side S3 and a fourth side S4 opposite each other in the second direction Y.

[0060] In this embodiment, as Figure 2As shown, on the same side of the substrate 111, for example, on the second side S2, in the first region Q1, in the direction from the first boundary B1 of the first region Q1 away from the second region Q2 to the second boundary B2 of the second region Q2, there are at least two rows of light sources 112; the first boundary B1 and the second boundary B2 are adjacent and extend in the same direction. The spacing between the first boundary B1 and the second boundary B2 on all four sides of the substrate 111 can be the same, but is not limited to this. For example, on the second side S2 of the substrate 111, the first spacing between the first boundary B1 and the second boundary B2 is the spacing in the first direction X; on the third side S3 of the substrate 111, the second spacing between the first boundary B1 and the second boundary B2 is the spacing in the second direction Y, and the first spacing and the second spacing are the same.

[0061] In this embodiment, as Figure 1 As shown, on the same side of substrate 111, in the first region Q1, the tilt angle of the light-emitting surface of light source 1123 near the first boundary B1 is greater than the tilt angle of the light-emitting surface of light source 1122 away from the first boundary B1. The tilt angle of the light-emitting surface is equal to the angle between the light-emitting surface and the surface of substrate 111 facing the optical film layer 12, or the tilt angle of the light-emitting surface is equal to the angle between the light-emitting surface and the surface of optical film layer 12 facing substrate 111. The angle between the light-emitting surface and the surface of substrate 111 facing the optical film layer 12 is an acute angle formed by the light-emitting surface and the surface of substrate 111 facing the optical film layer 12. The angle between the light-emitting surface and the surface of optical film layer 12 facing substrate 111 is an acute angle formed by the light-emitting surface and the surface of optical film layer 12 facing substrate 111.

[0062] In this embodiment, in the first region Q1, in the direction from the first boundary B1 to the second boundary B2, there are two rows of light sources 112. The tilt angle of the light-emitting surface of the light source 1123 closer to the first boundary B1 is greater than the tilt angle of the light-emitting surface of the light source 1122 farther from the first boundary B1. When there are multiple rows of light sources 112 in the first region Q1 in the direction from the first boundary B1 to the second boundary B2, the tilt angle of the light-emitting surface of the light source 112 decreases as the distance from the light source 112 to the first boundary B1 increases.

[0063] In this embodiment, as Figure 4 As shown, in the first region Q1, the tilt angle of the emitting surface F3 of the light source 1123 near the first boundary B1 is ψ1, as follows: Figure 5 As shown, in the first region Q1, the tilt angle of the emitting surface F2 of the light source 1122, which is far from the first boundary B1, is ψ2, and ψ1 is greater than ψ2. For example, ψ1 is equal to 13 degrees and ψ2 is equal to 5 degrees, but it is not limited to this.

[0064] In this embodiment, as Figures 3-5As shown, the support 113 of all light sources 112 has the same height. For example, it can be 0.2 mm. In the first region Q1, the distance between the highest point of the emitting surface of the light source 1123, which is closer to the first boundary B1, and the substrate 111 is 0.9 mm, and the distance between the highest point of the emitting surface of the light source 1122, which is farther from the first boundary B1, and the substrate 111 is 0.7 mm. In the second region Q2, the distance between the emitting surface of the light source 1121 and the substrate 111 is 0.7 mm.

[0065] In this embodiment, the shape and size of the light-emitting surface of all light sources 112 are the same. For example, the shape of the light-emitting surface is rectangular or approximately rectangular, the length of the light-emitting surface is 1 mm, and the width of the light-emitting surface is 0.5 mm, but it is not limited to this.

[0066] In this embodiment, as Figure 6 As shown, the diagonals of the second region Q2 include the first diagonal L1 and the second diagonal L2. The central axis of the second region Q2 includes the first central axis L3 and the second central axis L4. The first central axis L3 extends along the first direction X, and the second central axis L4 extends along the second direction Y.

[0067] In this embodiment, as Figure 6 As shown, in the first region Q1, in each row of light sources 112, the light sources 112 located on the extension line of the first diagonal L1 of the second region Q2 and the light sources 112 located on the extension line of the second diagonal L2 of the second region Q2 are inclined toward the center of the second region Q2. The remaining light sources 112 are inclined toward the second region Q2 along one of the first central axis L3 and the second central axis L4, and the central axis is perpendicular to the extension direction of the row where the light sources 112 are located. Figure 6 The arrows in the diagram indicate the orientation of the light-emitting surface of the light source 112. For example, on the second side S2 of the substrate 111, among the row of light sources 112 near the first boundary B1 in the first region Q1, those light sources 112 not located on the extension lines of the first diagonal L1 and the second diagonal L2 are tilted towards the second region Q2 along the first central axis L3. This allows for more uniform light mixing and avoids bright lines at the corners.

[0068] In this embodiment, as Figure 7 As shown, on the same side of the substrate 111, for each light source 1121 located in the second region Q2 and adjacent to the boundary between the first region Q1 and the second region Q2, the following relationship is satisfied between the first distance between the first vertex of the light source 1121 near the first region Q1 and the surface of the optical film layer 12 facing the light source 1121 in a direction perpendicular to the substrate 111, the second distance between the projection of the first vertex on the optical film layer 12 and the first edge of the optical film layer 12, and the emission angle of the light source 1121.

[0069]

[0070] Where a is the second distance and b is the first distance. The first vertex is the emission angle of the light source 1121. The first vertex is the vertex of the light source 1121 facing the optical film layer 12. In this way, it can be ensured that the light rays with the maximum emission angle of all light sources 112 are exactly incident on the outermost edge of the optical film layer 12 without light leakage.

[0071] In this embodiment, the value of b ranges from 10 to 40 mm. The value of b can be set according to requirements.

[0072] In this embodiment, a = 70mm, b = 30mm, arctan(a / b) = 67 degrees, and the emission angle of light source 1121 is 120 degrees. It equals 120 degrees. It should be noted that in at least one embodiment, all light sources 112 in the light-emitting module have the same light-emitting angle, for example, all of them can be 120 degrees, but it is not limited to this.

[0073] In this embodiment, as Figure 8 As shown, on the same side of the substrate 111, in the first region Q1, the third distance between the projection of the end of the light source 112 near the first boundary B1 onto the optical film layer 12 and the first edge of the optical film layer 12, the fourth distance between the second vertex of the light source 112 near the first boundary in the first region Q1 and the surface of the optical film layer 12 facing the light source 112 along a direction perpendicular to the substrate 111, the emission angle of the light source 112, and the tilt angle of the emission surface of the light source 112 satisfy the following relationship:

[0074]

[0075] Where c is the third distance, d is the fourth distance, and ψ is the tilt angle of the emitting surface of light source 112. The emission angle of the light source 112. The second vertex of the light source 112 near the first boundary B1 is the vertex that is near the first boundary B1 and faces the optical film layer 12. Figure 8 In the diagram, ∠4 is the tilt angle of the emitting surface of light source 112, and ∠1 + ∠2 is the emission angle of light source 112, i.e. Since ∠1+∠2+∠3=∠2+∠3+∠4=90°, therefore, ∠1=∠4=ψ.

[0076] In this embodiment, for the light source 1123 near the first boundary B1 in the first region Q1, the third distance between the projection of the end of the light source 1123 near the first boundary B1 onto the optical film layer 12 and the first edge of the optical film layer 12 is 32 mm, and the fourth distance between the second vertex of the light source 1123 near the first boundary B1 and the optical film layer 12 is 30 mm. Using formula (2), ψ1 = 13° can be calculated. This ensures that the light from the maximum emission angle of the light source 1123 is precisely incident on the outermost edge of the optical film layer 12 without light leakage. Furthermore, the tilt angle of the light-emitting surface of the light source 1123 can be the maximum tilt angle that allows for mass production, thus enabling mass production.

[0077] In this embodiment, for the light source 1122 in the first region Q1 that is far from the first boundary B1, the third distance between the projection of the end of the light source 1122 near the first boundary B1 onto the optical film layer 12 and the first edge of the optical film layer 12 is 43 mm, and the fourth distance between the second vertex of the light source 1122 near the first boundary B1 and the optical film layer 12 is 30 mm. Using formula (2), ψ2 = 5° can be calculated. Compared to the light source 1123, the third distance of the light source 1122 is larger, while the fourth distance changes less and can be considered unchanged. Therefore, the tilt angle of the light-emitting surface can be reduced accordingly, while still ensuring that the light from the maximum emission angle of the light source 1122 is precisely incident on the outermost edge of the optical film layer 12 without light leakage.

[0078] In this embodiment, as Figure 1 As shown, the optical film layer 12 includes a diffusion layer 121 for diffusing the light emitted by the light source assembly 11 to ensure uniform light emission. The material of the diffusion layer 121 includes PMMA (polymethyl methacrylate), PC (polycarbonate), or PS (polystyrene), but is not limited to these. When the optical film layer 12 only includes the diffusion layer 121, the light emitted by the light source 112 can be white light. Thus, the solution provided in this disclosure can avoid the phenomenon of increased brightness at the edges of the light-emitting module.

[0079] In this embodiment, as Figure 1As shown, the optical film layer 12 may further include a light conversion layer 122, located on the side of the diffusion layer 121 near the light source 112. The light conversion layer 122 converts light of a first wavelength into light of a second wavelength and a third wavelength, while allowing some of the first wavelength light to pass through, so that the mixture of the first wavelength light, the second wavelength light, and the third wavelength light passing through the light conversion layer 122 is white light. For example, the first wavelength light is blue light, and the second and third wavelength lights are red and green light, respectively. The light conversion layer 122 converts blue light into red and green light, and allows some blue light to pass through, so that the mixture of blue, red, and green light passing through the light conversion layer 122 is white light. Thus, the solution provided in this disclosure can avoid light leakage at the edges of the light-emitting module, resulting in blue light or a bluish tint to the displayed image.

[0080] In this embodiment, the light conversion layer 122 includes a quantum dot material. The quantum dot material includes group III-V compounds, such as cadmium-based CdS (cadmium sulfide), CdSn (cadmium tin sulfide), etc., or cadmium-free ZnS (zinc sulfide), InP (indium phosphide), perovskite, etc.

[0081] In this embodiment, as Figure 1 As shown, the brightness enhancement film 16 is located on the side of the optical film layer 12 away from the light source 112. The brightness enhancement film 16 can be a prism film used to improve the brightness of the light emission.

[0082] In this embodiment, as Figure 1 As shown, the frame 14 is located on the back panel 13, and the adhesive layer 18 is located between the water and oxygen barrier layer 17 and the frame 14. The adhesive layer 18 is made of an opaque material, such as opaque adhesive. The water and oxygen barrier layer 17 is located between the brightness enhancement film 16 and the adhesive layer 18, and is used to prevent water and oxygen from eroding the light conversion layer 122. The water and oxygen barrier layer 17 is also made of an opaque material. The opacity of both the adhesive layer 18 and the water and oxygen barrier layer 17 can reduce light leakage.

[0083] In this embodiment, the emitting surface of a portion of the light source 112 is tilted relative to the surface of the substrate 111 facing the optical film layer 12. In some embodiments, the tilting of the emitting surface of the light source 112 relative to the surface of the substrate 111 facing the optical film layer 12 is achieved through irregular processing of the internal structure of the light source. In other embodiments, it is achieved through the connection structure between the light source 112 and the substrate 111. For example, it can be achieved through a bracket, conductive pads, or at least one of the two. When the emitting surface of the light source 112 is tilted through a bracket, the internal structure of the light source 112 is uniform in the first region Q1, that is, no irregular processing is performed internally. The height of the first end of the bracket 113 is lower than the height of the second end, so that the emitting surface of the light source 112 is tilted. When the emitting surface of the light source 112 is tilted through conductive pads, the internal structure of the light source 112 is uniform in the first region Q1, and no irregular processing is performed internally. The light source assembly 11 also includes conductive pads, which are located below the second end of the bracket 113. No conductive pads are provided below the first end of the bracket 113, so that the emitting surface of the light source 112 is tilted.

[0084] In this embodiment, as Figure 9 As shown, this ensures that the light rays O1 and O2 at the maximum emission angle of all light sources 112 are incident precisely on the outermost edge of the light conversion layer 122 without light leakage.

[0085] In this embodiment, there is no need to use a color coating or specially designed baffles and light-shielding films to block light leaking from the edges of the light-emitting module, greatly reducing product costs and processes. Furthermore, this embodiment offers easier reassembly, allowing for convenient disassembly and reconfiguration without affecting product performance.

[0086] Embodiments of this disclosure also propose a display module. For example... Figure 10 As shown, the display module includes a display panel 1001 and a light-emitting module as described in any of the above embodiments. The display panel 1001 is located on the side of the light-emitting module away from the light source assembly 11.

[0087] In this embodiment, the display panel 1001 may be a liquid crystal display panel, but is not limited thereto.

[0088] In this embodiment, since the first region Q1 surrounds the second region Q2, and the light-emitting surface of the light source in the first region Q1 is tilted and faces the second region Q2, the light emitted by the light source 112 located at the edge can be tilted towards the center of the light-emitting module, reducing the light at the edge of the light-emitting module, thereby weakening the light leakage phenomenon at the edge of the light-emitting module, which is beneficial to improving the display quality of the display module.

[0089] While the above disclosure is provided, it is not limited thereto. Any person skilled in the art may make various alterations and modifications without departing from the spirit and scope of this disclosure; therefore, the scope of protection of this disclosure shall be determined by the scope defined in the claims.

Claims

1. A light-emitting module, characterized in that, include: Light source components; The light source assembly includes a substrate and a light source. The light source is located on the substrate. The substrate includes a first region and a second region. The first region surrounds the second region. The light-emitting surface of the light source located in the first region is inclined and faces the second region. The light-emitting module also includes a back plate, the back plate having a groove, a portion of the substrate being disposed in the groove, and another portion of the substrate being located outside the groove; It also includes an optical film layer; the optical film layer is located on the light-emitting side of the light source assembly and is used to modulate the light emitted by the light source assembly; The light source is located on the side of the substrate facing the optical film layer; On the same side of the substrate, in the first region, the third distance between the projection of the end of the light source near the first boundary onto the optical film and the first edge of the optical film, the fourth distance between the second vertex of the light source near the first boundary in the first region and the surface of the optical film facing the light source along a direction perpendicular to the substrate, the emission angle of the light source, and the tilt angle of the emission surface of the light source satisfy the following relationship: arctan(c / d) + ψ = φ / 2 Wherein, c is the third distance, d is the fourth distance, ψ is the tilt angle of the light-emitting surface of the light source, φ is the light-emitting angle of the light source, and the first boundary is the boundary of the first region away from the second region.

2. The light-emitting module according to claim 1, characterized in that, The light-emitting surface of the light source located in the second region faces the optical film layer and is parallel to the surface of the substrate facing the optical film layer; On the same side of the substrate, for each light source located in the second region and adjacent to the boundary between the first and second regions, the following relationship is satisfied between a first distance perpendicular to the substrate between the first vertex of the light source near the first region and the surface of the optical film facing the light source, a second distance between the projection of the first vertex onto the optical film and the first edge of the optical film, and the emission angle of the light source. arctan(a / b)≥φ / 2 Where a is the second distance, b is the first distance, and φ is the emission angle of the light source.

3. The light-emitting module according to claim 2, characterized in that, 。 4. The light-emitting module according to claim 2, characterized in that, On the same side of the substrate, in the first region, in the direction from the first boundary of the first region away from the second region to the second boundary of the second region, there are at least two rows of light sources; The first boundary is adjacent to the second boundary and extends in the same direction; In the first region, the tilt angle of the emitting surface of the light source closer to the first boundary is greater than the tilt angle of the emitting surface of the light source farther from the first boundary.

5. The light-emitting module according to claim 4, characterized in that, In the first region, there are two rows of light sources in the direction from the first boundary to the second boundary.

6. The light-emitting module according to claim 4, characterized in that, The second region is rectangular; In the first region, in each row of light sources, the light source located on the extension of the diagonal of the second region is tilted toward the center of the second region, and the remaining light sources are tilted toward the second region along the central axis of the second region, which is perpendicular to the extension direction of the row where the light source is located.

7. The light-emitting module according to claim 2, characterized in that, The optical film layer includes a diffusion layer, and the light-emitting module further includes a back plate, a frame, and an adhesive layer. The light source assembly is located between the back plate and the diffusion layer, and is located on the side of the back plate facing the diffusion layer. The adhesive frame is located on the back plate, and the adhesive layer is located between the diffusion layer and the adhesive frame; The adhesive layer is made of an opaque material.

8. The light-emitting module according to claim 7, characterized in that, The light source is used to emit light of a first wavelength; The optical film layer further includes a light conversion layer located on the side of the diffusion layer near the light source. The light conversion layer is used to convert light of the first wavelength into light of the second wavelength and light of the third wavelength, and to allow some of the light of the first wavelength to pass through, so that the mixed light of the first wavelength light, the second wavelength light, and the third wavelength light passing through the light conversion layer is white light.

9. The light-emitting module according to claim 8, characterized in that, The light conversion layer comprises quantum dot materials.

10. The light-emitting module according to claim 8, characterized in that, The light-emitting module further includes a water-oxygen barrier layer; the water-oxygen barrier layer is located between the diffusion layer and the adhesive layer, and between the light conversion layer and the adhesive layer.

11. The light-emitting module according to claim 2, characterized in that, It also includes a brightness enhancement film, which is located on the side of the optical film layer away from the light source.

12. The light-emitting module according to claim 1, characterized in that, The light source assembly also includes a bracket and a circuit board, with the circuit board located between the substrate and the light source, and the bracket located between the circuit board and the light source.

13. The light-emitting module according to claim 12, characterized in that, The height of the first end of the bracket is lower than the height of the second end, so that the light-emitting surface of the light source is tilted; and / or, The light source assembly also includes conductive pads located below the second end of the bracket to tilt the light-emitting surface of the light source.

14. The light-emitting module according to claim 1, characterized in that, The surface of the substrate in the first region that is close to the light source is located on the same plane as the surface of the substrate in the second region that is close to the light source.

15. A display module, characterized in that, include: The display panel is located on the side of the light-emitting module away from the light source assembly, according to any one of claims 1 to 14.

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