Light source module and display device

Abstract

The application provides a light source module and a display device. The light source module comprises a back plate, a light source, a reflection layer, a color conversion layer and at least one optical film. The back plate has a first bottom surface, a first side wall surface, a second bottom surface and a second side wall surface. The first side wall surface is connected between the first bottom surface and the second bottom surface. The second bottom surface is higher than the first bottom surface and is connected between the first side wall surface and the second side wall surface. The light source is arranged on the first bottom surface. The reflection layer is arranged on the second bottom surface and the second side wall surface. The color conversion layer is arranged on the reflection layer. The at least one optical film is placed on the second bottom surface. The reflection layer and the color conversion layer are located between the at least one optical film and the back plate.

Description

Technical Field

[0001] This invention relates to a module, and more particularly to a light source module and a display device. Background Technology

[0002] In a typical direct-lit backlight module, optical films (such as color conversion films, diffusers, etc.) are mounted on the back panel and overlapped with blue light-emitting diodes (LEDs). In this architecture, a small portion of the blue light emitted by the LEDs escapes from the periphery of the direct-lit backlight module through the gap between the optical films and the back panel, without being excited / converted by the color conversion films, resulting in a bluish or darker color at the periphery of the direct-lit backlight module.

[0003] Therefore, it is necessary to design a new type of light source module and display device to overcome the above-mentioned defects. Summary of the Invention

[0004] The purpose of this invention is to provide a light source module and display device that can improve the problem of the color around the module being too blue or too dark.

[0005] To achieve the above objectives, the present invention provides a light source module, comprising: a back plate having a first bottom surface, a first side wall surface, a second bottom surface, and a second side wall surface, wherein the first side wall surface is connected between the first bottom surface and the second bottom surface, and the second bottom surface is higher than the first bottom surface and connected between the first side wall surface and the second side wall surface; a light source disposed on the first bottom surface; a reflective layer disposed on the second bottom surface and the second side wall surface; a color conversion layer disposed on the reflective layer; and at least one optical film disposed on the second bottom surface, wherein the reflective layer and the color conversion layer are located between the at least one optical film and the back plate.

[0006] Preferably, the color conversion layer is directly disposed on the reflective layer; or, the color conversion layer is attached to the reflective layer.

[0007] Preferably, the color conversion layer covers only one of the second bottom surface and the second sidewall surface; or, the color conversion layer covers both the second bottom surface and the second sidewall surface.

[0008] Preferably, the color conversion layer includes one or more strip patterns that extend along the extension direction of the junction between the second bottom surface and the first sidewall surface.

[0009] Preferably, the material of the color conversion layer includes at least one of a yellow conversion material, a red conversion material, or a green conversion material.

[0010] Preferably, the light source includes at least one of a blue light-emitting element, a red light-emitting element, and a green light-emitting element.

[0011] Preferably, the reflective layer includes a frosted reflective sheet, a glossy reflective sheet, or a reflective adhesive layer.

[0012] Preferably, the at least one optical film and the light source have an overlapping area, and the color conversion layer is located outside the overlapping area.

[0013] Preferably, the at least one optical film includes a diffuser sheet placed on the second bottom surface and in contact with the color conversion layer.

[0014] Preferably, the at least one optical film further includes a color conversion sheet placed on the diffuser, and the color conversion sheet and the color conversion layer are located on opposite sides of the diffuser.

[0015] Preferably, when viewed from above the light source module, the projected area of ​​the color conversion sheet on the diffuser is larger than the projected area of ​​the color conversion layer on the diffuser.

[0016] Preferably, the material of the color conversion sheet includes at least one of yellow conversion material, red conversion material, or green conversion material.

[0017] Preferably, the at least one optical film further includes at least one of a prism sheet, another diffuser sheet, and a reflective brightening film, disposed on the color conversion sheet.

[0018] The present invention also provides a display device, including the light source module described above.

[0019] Compared with existing technologies, the light source module and display device provided in this invention, through the design of a double bottom surface and double side walls of the back panel, can form a space to accommodate the light source and a space to support at least one optical film. By providing a color conversion layer between the back panel and at least one optical film, at least a portion of the illumination light transmitted between the back panel and at least one optical film can be converted into converted light, so that the light emitted from the periphery of the light source module includes white light formed by the mixture of converted light and illumination light that has not been affected by the color conversion layer, thereby improving the problem of bluish color at the periphery of the module. In addition, by providing a reflective layer between the color conversion layer and the back panel, the problem of light absorption by the back panel or poor light utilization can be improved, which helps to improve the light reflection efficiency, allowing more light to be emitted from the periphery of the module, thereby improving the problem of dark color or insufficient brightness at the periphery of the module. Attached Figure Description

[0020] Figure 1 This is a cross-sectional schematic diagram of a light source module according to an embodiment of the present invention;

[0021] Figure 2 This is a cross-sectional schematic diagram of a light source module according to another embodiment of the present invention;

[0022] Figure 3 This is a cross-sectional schematic diagram of a light source module according to another embodiment of the present invention;

[0023] Figure 4 This is a cross-sectional schematic diagram of a light source module according to another embodiment of the present invention. Detailed Implementation

[0024] To provide a further understanding of the purpose, structure, features and functions of the present invention, detailed descriptions are provided below with reference to embodiments.

[0025] The directional terms used in this document, such as "up," "down," "front," "back," "left," and "right," are only for reference to the accompanying drawings. Therefore, the directional terms used are for illustrative purposes and not for limiting the invention.

[0026] In the accompanying drawings, the various figures illustrate general features of the methods, structures, or materials used in specific embodiments. However, these figures should not be construed as defining or limiting the scope or nature covered by these embodiments. For example, for clarity, the relative dimensions, thicknesses, and locations of various films, regions, or structures may be reduced or enlarged.

[0027] The terms "first" and "second" used in this specification or the claims are used only to name different components or to distinguish different embodiments or scopes, and are not intended to limit the upper or lower limit of the number of components, nor to limit the manufacturing or placement order of the components. Furthermore, the phrase "one component / film layer is disposed / placed on (or above) another component / film layer" can encompass the case where the component / film layer is directly disposed / placed on (or above) the other component / film layer, and the two components / film layers are in direct contact; and the case where the component / film layer is indirectly disposed / placed on (or above) the other component / film layer, and one or more components / film layers exist between the two components / film layers.

[0028] Figures 1 to 4 This is a cross-sectional schematic diagram of a light source module according to several embodiments of the present invention. Figures 1 to 4 In the embodiments shown, the same or similar elements will be referred to by the same or similar reference numerals, and their descriptions will be omitted. Furthermore, features in different embodiments may be combined with each other without conflict, and simple equivalent changes and modifications made in accordance with this specification or the claims are still within the scope of this patent.

[0029] Please refer to Figure 1 The light source module 1 may include a backplate 10, a light source 11, a reflective layer 12, a color conversion layer 13, and at least one optical film 14, but is not limited thereto. Depending on different requirements, the light source module 1 may further include one or more elements or films.

[0030] The backplate 10 can be used to house the light source 11 and support the reflective layer 12, the color conversion layer 13, and at least one optical film 14. For example, the backplate 10 may include iron or other sheets with rigidity or support, but is not limited thereto.

[0031] The back panel 10, for example, has a first bottom surface SB1, a first side wall surface SS1, a second bottom surface SB2, and a second side wall surface SS2. Figure 1 For example, the first bottom surface SB1 and the second bottom surface SB2 may be horizontal planes, and the first side wall surface SS1 and the second side wall surface SS2 may be vertical planes perpendicular to the horizontal planes, but this is not a limitation. Depending on different requirements, the first side wall surface SS1 and the second side wall surface SS2 may not be perpendicular to or parallel to the first bottom surface SB1 and the second bottom surface SB2. For example, the first side wall surface SS1 may extend obliquely from the first bottom surface SB1 to the second bottom surface SB2, but this is not a limitation.

[0032] The first side wall SS1 is connected between the first bottom surface SB1 and the second bottom surface SB2, and the first side wall SS1 surrounds the first bottom surface SB1 to form a space for accommodating the light source 11.

[0033] The second bottom surface SB2 is higher than the first bottom surface SB1 to provide a support surface for at least one optical film 14. In addition, the second bottom surface SB2 is connected between the first side wall surface SS1 and the second side wall surface SS2, and the second side wall surface SS2 surrounds the second bottom surface SB2 to form a space for accommodating at least one optical film 14.

[0034] A light source 11 is disposed on the first bottom surface SB1 and is used to provide illumination light L. For example, the light source 11 may include a circuit board 110 and a light-emitting element 112, but is not limited thereto. The circuit board 110 may include a printed circuit board or a flexible printed circuit board, but is not limited thereto. The light-emitting element 112 is disposed on the circuit board 110 and electrically connected to the circuit board 110. The light-emitting element 112 may include a light-emitting diode, but is not limited thereto.

[0035] In some embodiments, the light source 11 may include a plurality of light-emitting elements 112, which may include at least one of blue light-emitting elements, red light-emitting elements, and green light-emitting elements. For example, the plurality of light-emitting elements 112 may include a plurality of blue light-emitting elements; or, the plurality of light-emitting elements 112 may include a plurality of blue light-emitting elements and a plurality of green light-emitting elements; or, the plurality of light-emitting elements 112 may include a plurality of blue light-emitting elements and a plurality of red light-emitting elements; or, the plurality of light-emitting elements 112 may include a plurality of blue light-emitting elements, a plurality of red light-emitting elements, and a plurality of green light-emitting elements, but are not limited thereto.

[0036] A reflective layer 12 is disposed on the second bottom surface SB2 and the second sidewall surface SS2 to improve light reflection efficiency. For example, the reflective layer 12 may include a matte reflective sheet, a glossy reflective sheet, a reflective adhesive layer (such as white paint or high-reflectivity adhesive), or any film layer with reflective properties, and the reflective layer 12 may be formed on the second bottom surface SB2 and the second sidewall surface SS2 by attachment, printing, or other feasible methods. In some embodiments, the reflective layer 12 may completely cover the second bottom surface SB2 and the second sidewall surface SS2, but is not limited thereto. For example, although not shown, the reflective layer 12 may partially cover the second bottom surface SB2 and / or the second sidewall surface SS2.

[0037] A color conversion layer 13 is disposed on the reflective layer 12 to convert the illumination light L into other colors of light (hereinafter referred to as converted light). For example, the material of the color conversion layer 13 may include fluorescence, phosphorescence, quantum dots (QD), or combinations thereof, but is not limited thereto. In some embodiments, the illumination light L may include blue light, and the material of the color conversion layer 13 may include at least one of a yellow conversion material, a red conversion material, or a green conversion material, but is not limited thereto. For example, a yellow conversion material can convert blue light into yellow light (i.e., convert the light to yellow), a red conversion material can convert blue light into red light (i.e., convert the light to red), and a green conversion material can convert blue light into green light (i.e., convert the light to green).

[0038] In some embodiments, the color conversion layer 13 may include a yellow conversion material, and yellow light (converted light) generated by the action (conversion / excitation) of the yellow conversion material and blue light (illumination light L) not generated by the yellow conversion material can be mixed to form white light. In other embodiments, the color conversion layer 13 may include a red conversion material and a green conversion material, and red light and green light (converted light) generated by the action (conversion / excitation) of the red conversion material and the green conversion material, and blue light (illumination light L) not generated by the red conversion material and the green conversion material can be mixed to form white light. In still other embodiments, the color conversion layer 13 may include a yellow conversion material, a red conversion material, and a green conversion material, and yellow light, red light, and green light (converted light) generated by the action (conversion / excitation) of the yellow conversion material, the red conversion material, and the green conversion material, and blue light (illumination light L) not generated by the yellow conversion material, the red conversion material, and the green conversion material can be mixed to form white light.

[0039] In some embodiments, the color conversion layer 13 may be directly disposed on the reflective layer 12 by means of coating or printing, but this is not a limitation. In other embodiments, the color conversion layer 13 may be attached to the reflective layer 12, that is, there may be an adhesive material (not shown) between the color conversion layer 13 and the reflective layer 12.

[0040] In some embodiments, the color conversion layer 13 may cover only one of the second bottom surface SB2 and the second sidewall surface SS2. For example, the color conversion layer 13 may cover the second bottom surface SB2 but not the second sidewall surface SS2 (e.g., Figure 1 (as shown), or, although not shown in Figure 1 The color conversion layer 13 may cover the second sidewall SS2 but not the second bottom surface SB2, but is not limited thereto. In other embodiments, although not shown in Figure 1 The color conversion layer 13 can cover the second bottom surface SB2 and the second side wall surface SS2.

[0041] In some embodiments, the color conversion layer 13 may include one or more strip patterns P ( Figure 1 (Only one is schematically shown), the strip pattern P may extend, for example, along the extension direction of the boundary IF between the second bottom surface SB2 and the first sidewall SS1 (e.g., perpendicular to the paper). In other embodiments, although not shown, the color conversion layer 13 may include a plurality of dotted patterns (or block patterns) or patterns with spatial gradients. The spatially gradient pattern may, for example, include a plurality of color conversion patterns whose distribution density changes (e.g., increases or decreases) with increasing distance from the center of the light source module 1.

[0042] At least one optical film 14 is placed on the second bottom surface SB2, and the reflective layer 12 and the color conversion layer 13 are located between the at least one optical film 14 and the back plate 10. Figure 1 For example, in the architecture where the color conversion layer 13 covers the second bottom surface SB2, at least one optical film 14 can be directly disposed on the color conversion layer 13, but is not limited thereto.

[0043] At least one optical film 14 and the light source 11 have an overlapping region RR, and the color conversion layer 13 is located outside the overlapping region RR, that is, the color conversion layer 13 and the overlapping region RR do not overlap in the top view direction Z of the light source module 1. By designing the color conversion layer 13 to be located outside the overlapping region RR, the adverse effects of the heat generated by the light source 11 during operation on the color conversion layer 13 can be reduced, or the possibility of damage (such as scratches) to the color conversion layer 13 can be reduced.

[0044] In some embodiments, at least one optical film 14 may include a diffuser 140 to improve the uniformity of emitted light. The diffuser 140 may, for example, be placed on the second bottom surface SB2 and in contact with the color conversion layer 13.

[0045] In some embodiments, at least one optical film 14 may further include a color conversion sheet 142 to convert illumination light L passing through the diffuser 140 into other colors of light. The color conversion sheet 142 may be placed on the diffuser 140, and the color conversion sheet 142 and the color conversion layer 13 may be located on opposite sides (e.g., upper and lower sides) of the diffuser 140, but are not limited thereto. For example, when the color conversion layer 13 covers the second sidewall SS2 but does not cover the second bottom surface SB2, the color conversion sheet 142 and the color conversion layer 13 may be located on adjacent sides of the diffuser 140; or, when the color conversion layer 13 covers both the second bottom surface SB2 and the second sidewall SS2, the color conversion sheet 142 and the color conversion layer 13 may be located on three adjacent sides of the diffuser 140.

[0046] The material of the color conversion sheet 142 may include fluorescence, phosphorescence, quantum dots, or combinations thereof, but is not limited thereto. In some embodiments, the illumination light L may include blue light, and the material of the color conversion sheet 142 may include at least one of a yellow conversion material, a red conversion material, or a green conversion material, but is not limited thereto.

[0047] In some embodiments, the color conversion layer 142 can completely cover the diffuser 140. Compared to the color conversion layer 13, which does not overlap with the overlapping region RR in the top view Z direction of the light source module 1, the projected area of ​​the color conversion layer 142 on the diffuser 140 is larger than the projected area of ​​the color conversion layer 13 on the diffuser 140 when viewed from the top view Z direction of the light source module 1.

[0048] In some embodiments, at least one optical film 14 may further include optical film 144 and optical film 146. Optical film 144 and optical film 146 are sequentially disposed on color conversion film 142, and optical film 144 and optical film 146 are selected from, for example, two of prism sheets, diffuser sheets, and reflective brightness enhancement films, but are not limited thereto. In other embodiments, although not shown, the number of films in at least one optical film 14 may be increased or decreased according to different needs. The following embodiments can all be modified in the same way, and will not be repeated below.

[0049] exist Figure 1In this design, the light source module 1 is, for example, a direct-lit light source module, wherein the light source 11 and at least one optical film 14 are overlapped, and the light guide plate can be omitted from the light source module 1. Through the design of the double bottom surface and double side wall surface of the back plate 10, a space for accommodating the light source 11 and a space for supporting at least one optical film 14 can be formed. By providing a color conversion layer 13 between the back plate 10 and at least one optical film 14, at least a portion of the illumination light L1 (such as blue light) transmitted between the back plate 10 and at least one optical film 14 can be converted into converted light (such as yellow light), so that the light L2 emitted from the periphery of the light source module 1 includes the converted light and the white light formed by the mixture of the illumination light L1 that has not been affected by the color conversion layer 13, thereby improving the problem of the bluish color at the periphery of the module. In addition, by setting a reflective layer 12 between the color conversion layer 13 and the back plate 10, the problem of light being absorbed by the back plate 10 or poor light utilization can be improved, which helps to improve the light reflection efficiency and allow more light L2 to be emitted from the periphery of the module, thereby improving the problem of dark color or insufficient brightness around the module.

[0050] although Figure 1 The light source module described herein is exemplified by a direct-lit light source module; however, it should be understood that the light source module in any embodiment of the present invention is not intended to exclude side-lit light source modules. For example, although not shown, the light source 11 described above may also include a light guide plate and a plurality of light-emitting elements disposed on the side of the light guide plate. The following embodiments can all be modified in the same way, and will not be repeated below.

[0051] Additionally, although not shown in Figure 1 A reflective layer may be formed on the first sidewall SS1, or the first sidewall SS1 may be polished to improve light utilization. The following embodiments can all be modified in the same way, and will not be repeated below.

[0052] Please refer to Figure 2 In the light source module 1A, the stripe pattern P of the color conversion layer 13A, for example, partially covers the second bottom surface SB2 and is positioned near the boundary IF between the second bottom surface SB2 and the first sidewall SS1. However, it should be understood that, although not shown, the shape, position, or coverage area of ​​the stripe pattern P of the color conversion layer 13A can be changed according to different needs. For example, the stripe pattern P of the color conversion layer 13A can be positioned away from the boundary IF between the second bottom surface SB2 and the first sidewall SS1; or, the stripe pattern P of the color conversion layer 13A can partially cover the second sidewall SS2, but is not limited thereto.

[0053] The above design not only improves the problem of the color around the module being too blue or too dark, but also reduces the cost or time of making the color conversion layer.

[0054] Please refer to Figure 3In the light source module 1B, the color conversion layer 13B includes multiple strip patterns P. These strip patterns P, for example, partially cover the second bottom surface SB2 and are arranged in a direction away from the boundary IF between the second bottom surface SB2 and the first sidewall SS1. However, it should be understood that, although not shown, the number, shape, placement, or coverage of the multiple strip patterns P of the color conversion layer 13B can be varied according to different requirements. For example, the number of strip patterns P in the color conversion layer 13B can be greater than two; or, the multiple strip patterns P of the color conversion layer 13B can be respectively disposed on the second bottom surface SB2 and the second sidewall SS2; or, the multiple strip patterns P of the color conversion layer 13B can be disposed on the second sidewall SS2, but are not limited thereto.

[0055] Through the above design, in addition to improving the problem of the color being too blue or too dark around the module, it can also reduce the cost or time of making the color conversion layer and improve the light conversion rate.

[0056] Please refer to Figure 4 In the light source module 1C, the color conversion layer 13C, for example, completely covers the second bottom surface SB2 and the second side wall surface SS2, such that at least one optical film 14 is surrounded by the color conversion layer 13C.

[0057] The above design not only improves the problem of the color around the module being too blue or too dark, but also enhances the light conversion efficiency.

[0058] The present invention also provides a display device, which includes the light source module 1 described above. In this way, when displaying, the display device can not only improve the problem of the surrounding color being too blue or too dark, but also improve the light conversion rate.

[0059] In summary, the present invention provides a light source module and a display device, including a back plate, a light source, a reflective layer, a color conversion layer, and at least one optical film. The back plate has a first bottom surface, a first side wall, a second bottom surface, and a second side wall, wherein the first side wall is connected between the first bottom surface and the second bottom surface, and the second bottom surface is higher than the first bottom surface and connected between the first side wall and the second side wall. The light source is disposed on the first bottom surface; the reflective layer is disposed on the second bottom surface and the second side wall; the color conversion layer is disposed on the reflective layer; at least one optical film is placed on the second bottom surface, and the reflective layer and the color conversion layer are located between the at least one optical film and the back plate. In the embodiments of the present invention, the double bottom surface and double side wall design of the back plate can form a space for accommodating the light source and a space for supporting at least one optical film. By providing a color conversion layer between the back plate and at least one optical film, at least a portion of the illumination light transmitted between the back plate and at least one optical film can be converted into converted light, so that the light emitted from the periphery of the light source module includes white light formed by the mixture of converted light and illumination light that has not been affected by the color conversion layer, thereby improving the problem of bluish color at the periphery of the module. In addition, by setting a reflective layer between the color conversion layer and the back panel, the problem of light being absorbed by the back panel or poor light utilization can be improved, which helps to improve the light reflection efficiency and allow more light to be emitted from all sides of the module, thereby improving the problem of dark colors or insufficient brightness around the module.

[0060] Although the invention has been described in conjunction with the accompanying drawings, the embodiments disclosed in the drawings are intended to illustrate preferred embodiments of the invention and should not be construed as limiting the invention. The scale in the schematic drawings does not represent the actual proportions of the components, in order to clearly describe the required parts.

[0061] The present invention has been described by the above-described embodiments; however, these embodiments are merely examples for implementing the present invention. It must be noted that the disclosed embodiments do not limit the scope of the present invention. Conversely, any modifications and refinements made without departing from the spirit and scope of the present invention are within the scope of patent protection of the present invention.

Claims

1. A light source module, characterized by include: The back panel has a first bottom surface, a first side wall surface, a second bottom surface, and a second side wall surface, wherein the first side wall surface is connected between the first bottom surface and the second bottom surface, the second bottom surface is higher than the first bottom surface and connected between the first side wall surface and the second side wall surface, the first bottom surface and the second bottom surface are horizontal planes, and the first side wall surface and the second side wall surface are neither perpendicular to nor parallel to the first bottom surface and the second bottom surface; The light source is disposed on the first bottom surface; A reflective layer is disposed on the second bottom surface and the second side wall surface; A color conversion layer is disposed on the reflective layer, the color conversion layer covering the second sidewall but not the second bottom surface; and At least one optical film is placed on the second bottom surface, and the reflective layer and the color conversion layer are located between the at least one optical film and the back plate.

2. The light source module of claim 1, wherein The color conversion layer is directly disposed on the reflective layer; Alternatively, the color conversion layer may be attached to the reflective layer.

3. The light source module of claim 1, wherein the light source module is configured to be mounted on a printed circuit board (PCB) of a display device. The color conversion layer includes one or more strip patterns that extend along the extension direction of the junction between the second bottom surface and the first sidewall surface.

4. The light source module of claim 1, wherein the light source module is configured to be mounted on a printed circuit board (PCB) of a display device. The material of the color conversion layer includes at least one of yellow conversion material, red conversion material, or green conversion material.

5. The light source module of claim 1, wherein the light source module is configured to be mounted on a printed circuit board (PCB) of a display device. The light source includes at least one of blue light-emitting elements, red light-emitting elements, and green light-emitting elements.

6. The light source module of claim 1, wherein the light source module is configured to be mounted on a printed circuit board. The reflective layer includes a frosted reflective sheet, a glossy reflective sheet, or a reflective adhesive layer.

7. The light source module of claim 1, wherein the light source module is configured to be mounted on a printed circuit board (PCB) of a display device. The at least one optical film and the light source have an overlapping area, and the color conversion layer is located outside the overlapping area.

8. The light source module of claim 1, wherein the light source module is configured to be mounted on a printed circuit board (PCB) of a display device. The at least one optical film includes: A diffuser sheet is placed on the second bottom surface and in contact with the color conversion layer.

9. The light source module of claim 8, wherein the light source module is configured to be mounted on a printed circuit board (PCB) of a display device. The at least one optical film further includes: A color conversion sheet is placed on the diffuser sheet, and the color conversion sheet and the color conversion layer are located on opposite sides of the diffuser sheet.

10. The light source module of claim 9, wherein the light source module is configured to be mounted on a printed circuit board (PCB) of a display device. Viewed from above the light source module, the projected area of ​​the color conversion sheet on the diffuser is larger than the projected area of ​​the color conversion layer on the diffuser.

11. The light source module of claim 9, wherein the light source module is configured to be mounted on a printed circuit board (PCB) of a display device. The material of the color conversion sheet includes at least one of yellow conversion material, red conversion material, or green conversion material.

12. The light source module of claim 9, wherein the light source module is configured to be mounted on a printed circuit board (PCB) of a display device. The at least one optical film further includes: At least one of a prism sheet, another diffuser sheet, and a reflective brightening film is disposed on the color conversion sheet.

13. A display device comprising: It includes the light source module as described in any one of claims 1 to 12.

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