Light source module

Abstract

The present application provides a light source module, which includes a first light splitting member, a second light splitting member, a first light source, a second light source and a third light source. The first light source is used to emit first light with a first wavelength, and the first light travels to the first light splitting member along a first light path direction. The second light source is used to emit second light with the first wavelength, and the second light travels to the second light splitting member along a second light path direction, and the first light path direction is opposite to the second light path direction. The third light source is used to emit third light with a second wavelength, and the third light travels along a third light path direction, wherein the third light path direction is substantially perpendicular to the first light path direction, and the second wavelength is different from the first wavelength. The first light source includes a first reflective layer, and the second light source includes a second reflective layer, and the first reflective layer and the second reflective layer are used to reflect light with the first wavelength. In this way, the present application uses two light sources with the same wavelength and arranged on opposite sides to increase the light brightness of the light source module.

Description

TECHNICAL FIELD

[0001] The present invention relates to a light source module, in particular, a light source module applied in a projector. BACKGROUND

[0002] The light source module has a wide range of applications. Many devices need light source modules, such as projectors, illuminators, flashlights, etc. Generally speaking, the greater the luminous brightness of the light source module, the wider the range of applications of the light source module and the better the lighting effect. In addition, the existing light source modules occupy a large space, and thus the projectors and the like using them are large in size, which is not conducive to transportation and storage. Therefore, it is one of the goals of those skilled in the art to provide a new light source module that can provide higher brightness with smaller size. SUMMARY

[0003] The present invention relates to a light source module, in particular, a light source module applied in a projector.

[0004] The present invention provides a light source module, comprising: a first light splitting member; a second light splitting member; a first light source for emitting a first light having a first wavelength, the first light traveling along a first light path direction to the first light splitting member; a second light source for emitting a second light having the first wavelength, the second light traveling along a second light path direction to the second light splitting member, the first light path direction being opposite to the second light path direction; and a third light source for emitting a third light having a second wavelength, the third light traveling along a third light path direction, wherein the third light path direction is substantially perpendicular to the first light path direction, and the second wavelength is different from the first wavelength; wherein the first light source comprises a first reflective layer, the second light source comprises a second reflective layer, and the first reflective layer and the second reflective layer are used to reflect light having the first wavelength.

[0005] Preferably, the first light source and the second light source are arranged along a center line, and the third light source, the first light splitting member and the second light splitting member are arranged on the same side of the center line.

[0006] Preferably, the center line passes through the center of the first light source and the center of the second light source.

[0007] Preferably, the third light source is arranged along a center line, and the first light splitting member and the second light splitting member are arranged on opposite sides of the center line, respectively.

[0008] Preferably, further comprising: a third light splitting member for reflecting the first light and the second light having the first wavelength, and reflecting the third light having the second wavelength; wherein the center line passes through the center of the third light splitting member.

[0009] Preferably, further comprising:

[0010] At least one condenser is disposed opposite at least one of the first light source, the second light source, and the third light source.

[0011] Preferably, the application further comprises a third light splitting element for reflecting the first light and the second light having the first wavelength, and reflecting the third light having the second wavelength, and allowing light having a third wavelength to pass through; and a fourth light source for emitting fourth light having the third wavelength, the fourth light traveling along the first light path direction to the third light splitting element.

[0012] Preferably, a condenser is disposed opposite the fourth light source.

[0013] Preferably, the first light splitting element and the second light splitting element are connected to each other; wherein the third light is incident on the first light splitting element and the second light splitting element along the third light path direction; or the first light splitting element and the second light splitting element have a space therebetween, at least a portion of the third light passing through the space along the third light path direction.

[0014] Preferably, the first light comprises a first portion and a second portion, the first portion being incident on the first light splitting element along the first light path direction, and the second portion being incident on the second light source along the first light path direction; the second light comprises a third portion and a fourth portion, the third portion being incident on the second light splitting element along the second light path direction, and the fourth portion being incident on the first light source along the second light path direction.

[0015] Preferably, the application further comprises a first reflecting element disposed opposite the first light source, and a second reflecting element disposed opposite the second light source; wherein the first light comprises a first portion and a second portion, the first portion being incident on the first light splitting element along the first light path direction, and the second portion being incident on the first reflecting element along the first light path direction; the second light comprises a third portion and a fourth portion, the third portion being incident on the second light splitting element along the second light path direction, and the fourth portion being incident on the second reflecting element along the second light path direction.

[0016] Preferably, the first light source and the second light source are disposed along a center line, the third light source, the first light splitting element, and the second light splitting element are disposed on one side of the center line, and the first reflecting element and the second reflecting element are disposed on the other side of the center line.

[0017] Preferably, the first reflecting element is located outside the light path of the first portion of the first light; and the second reflecting element is located outside the light path of the third portion of the second light.

[0018] Preferably, the application further comprises a third reflecting element disposed opposite the fourth light source; wherein the fourth light comprises a fifth portion and a sixth portion, the fifth portion being incident on the third light splitting element along the first light path direction, and the sixth portion traveling along the first light path direction to the third reflecting element.

[0019] Preferably, the fourth light source is arranged along a center line, and the third reflecting member is arranged on one side of the center line.

[0020] Preferably, the light source module further comprises: a fourth reflecting member; a fifth reflecting member; and a fifth light source for emitting fifth light having the third wavelength, the fifth light traveling along a fourth light path direction, wherein the fifth light comprises a seventh portion and an eighth portion, the seventh portion being incident to the fourth reflecting member along the fourth light path direction, and the eighth portion being incident to the fifth reflecting member along the fourth light path direction.

[0021] Preferably, the fifth light source is arranged along a center line, and the fourth reflecting member and the fifth reflecting member are arranged on opposite sides of the center line, respectively.

[0022] Preferably, the light source module further comprises: a fifth light source for emitting fifth light having the third wavelength, the fifth light being incident to the first light splitting member and the second light splitting member along a fourth light path direction opposite to the third light path direction; wherein the first light source further comprises a first wavelength conversion layer, and the second light source further comprises a second wavelength conversion layer, the first wavelength conversion layer and the second wavelength conversion layer being used for converting the fifth light having the third wavelength into light having the first wavelength.

[0023] Compared with the prior art, the present application can increase the light brightness of the light source module by using two light sources having the same wavelength and arranged on opposite sides, and can further stack other light sources having different wavelengths, so that the light source module formed has a small volume and high brightness. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1A and Figure 1B FIG. 1 shows a schematic diagram of a light source module according to an embodiment of the present application.

[0025] Figure 2 FIG. 2 shows a schematic diagram of a light path of a light source module according to another embodiment of the present application.

[0026] Figure 3 FIG. 3 shows a schematic diagram of a light path of a light source module according to another embodiment of the present application.

[0027] Figure 4 FIG. 4 shows a schematic diagram of a light path of a light source module according to another embodiment of the present application.

[0028] Figure 5 FIG. 5 shows a schematic diagram of a light path of a light source module according to another embodiment of the present application.

[0029] Figure 6 FIG. 6 shows a schematic diagram of a light path of a light source module according to another embodiment of the present application. DETAILED DESCRIPTION

[0030] To further understand the purpose, structure, features, and functions of the present application, the following detailed description is provided in conjunction with the embodiments.

[0031] Please refer to Figure 1A and Figure 1B , which show a schematic diagram of a light source module 100 according to an embodiment of the present application. The light source module 100 can be applied to a device requiring a light source, such as a projector, a luminaire, a display, or other types of devices. In the case of being applied to a projection device, the light source module 100 can also be referred to as a light combining module.

[0032] The light source module 100 includes a first light source 110A, a second light source 110B, a third light source 110C, a fourth light source 110D, a first light splitting member 120A, a second light splitting member 120B, a third light splitting member 120C, and at least one condenser lens (e.g., a first condenser lens 130A, a second condenser lens 130B, and a third condenser lens 130C).

[0033] As shown in Figure 1A , the first light source 110A is configured to emit first light L1 (a set of L11, L12) having a first wavelength along a first light path direction P1 to the first light splitting member 120A. As shown in Figure 1B , the second light source 110B is configured to emit second light L2 (a set of L21, L22) having the first wavelength along a second light path direction P2 to the second light splitting member 120B, the first light path direction P1 being opposite to the second light path direction P2, in other words, the first light path direction P1 and the second light path direction P2 are opposite in direction, the first light L1 and the second light L2 travel in opposite directions. The third light source 110C is configured to emit third light L3 having a second wavelength along a third light path direction P3, wherein the third light path direction P3 is substantially perpendicular to the first light path direction P1. The second wavelength is different from the first wavelength. The first light source 110A includes a first reflective layer 110A1, and the second light source 110B includes a second reflective layer 110B1, the first reflective layer 110A1 and the second reflective layer 110B1 are configured to reflect light rays, for example, the first reflective layer 110A1 reflects part of the second light L2 (e.g., the fourth part L22, which will be described later), and the second reflective layer 110B1 reflects part of the first light L1 (e.g., the second part L12, which will be described later). In this way, by the configuration of the first light splitting member 120A, the optical path of the first light L1 can be shortened, and by the configuration of the second light splitting member 120B, the optical path of the second light L2 can be shortened. In addition, using two first light sources 110A and second light sources 110B of the same wavelength and placed on opposite sides can increase the brightness of the light source module 100.

[0034] In this embodiment, the first wavelength is, for example, between 495 nm and 570 nm, and the second wavelength is, for example, between 450 nm and 475 nm, or between 620 nm and 750 nm. Specifically, the first light L1 and the second light L2 are, for example, green light, and the third light L3 is, for example, blue light or red light. Green light accounts for approximately 70% of white light; the higher the proportion of green light, the higher the brightness of the white light. Since the light emitted by the light source module 100 includes a mixture of two green lights (the first light L1 and the second light L2), the brightness of the white light emitted by the light source module 100 can be enhanced.

[0035] like Figure 1A and Figure 1B As shown, a first light source 110A and a second light source 110B are arranged opposite to each other. The first light source 110A and the second light source 110B are arranged along a first center line S1. For example, the first center line S1 passes through the center of the first light source 110A and the center of the second light source 110B. The first light source 110A and the second light source 110B are divided into two halves by the first center line S1. Thus, the first light L1 emitted by the first light source 110A is divided into a first portion L11 and a second portion L12 relative to the first center line S1. The first portion L11 is incident from above the first center line S1 along the first optical path direction P1 to the first beam splitter 120A, and is reflected sequentially by the first beam splitter 120A and the third beam splitter 120C to the module 10, which is, for example, an illumination module or an imaging module. The second part L12 is incident on the second light source 110B along the first optical path direction P1, and is reflected by the second reflective layer 110B1 of the second light source 110B (hereinafter referred to as "the second reflective part L12'"). The optical path of the second reflective part L12' is the same as the optical path of the second light L2 of the second light source 110B (e.g., ...). Figure 1B Similar to or the same as shown, the optical path of the second light L2 will be described later.

[0036] like Figure 1B As shown, the second light L2 emitted by the second light source 110B is divided into a third part L21 and a fourth part L22 relative to the first center line S1. The third part L21 is incident on the second beam splitter 120B from above the first center line S1 via the second optical path direction P2, and is reflected sequentially by the second beam splitter 120B and the third beam splitter 120C to the module 10. The fourth part L22 is incident on the first light source 110A along the second optical path direction P2, and is reflected by the first reflective layer 110A1 of the first light source 110A (hereinafter referred to as "the fourth reflective part L22'"). The optical path of the fourth reflective part L22' is different from the optical path of the first light L1 of the first light source 110A (e.g., ...). Figure 1A The similarities or identicalities shown are not repeated here.

[0037] Similar to the optical path of the second ray L2, the second reflection part L12' ( Figure 1AA portion of the light is incident on the first light source 110A, while another portion exits to the module 10. Similar to the optical path of the first light source L1, the fourth reflecting portion L22'... Figure 1B A portion of the light is incident on the second light source 110B, while the other portion exits to the module 10. This architecture can improve light utilization. After several reflections, the first light L1 and the second light L2 are finally emitted from the module 10.

[0038] Although the optical paths of the first light L1 and the second light L2 are respectively drawn in Figure 1A and Figure 1B However, in reality Figure 1A The optical path of the first light L1 shown is as follows: Figure 1B The optical path of the second light L2 shown can also occur simultaneously.

[0039] like Figure 1A As shown, the first light source 110A further includes a first light-emitting layer 110A2 and a first wavelength conversion layer 110A3. The first light-emitting layer 110A2 is formed between the first wavelength conversion layer 110A3 and the first reflective layer 110A1, and the first wavelength conversion layer 110A3 is closer to the second light source 110B than the first reflective layer 110A1. The first light-emitting layer 110A2, for example, contains at least one semiconductor epitaxial layer that can emit light L1a, and the first wavelength conversion layer 110A3 can convert the light L1a into a first light L1 with a first wavelength. In this embodiment, the light L1a is, for example, light with a second wavelength, such as blue light or red light. The first wavelength conversion layer 110A3 contains a plurality of fluorescent particles 110A4 that can excite the light to convert the wavelength of the light. For example, the first wavelength conversion layer 110A3 converts the light L1a (e.g., blue light) into the first light L1 with a first wavelength (e.g., green light). In another embodiment, the light L1a emitted by the first light-emitting layer 110A2 may be a first light L1 with a first wavelength; in this example, the first wavelength conversion layer 110A3 may be omitted from the first light source 110A.

[0040] like Figure 1BAs shown, the second light source 110B further includes a second light emitting layer 110B2 and a second wavelength conversion layer 110B3. The second light emitting layer 110B2 is formed between the second wavelength conversion layer 110B3 and the second reflective layer 110B1, and the second wavelength conversion layer 110B3 is closer to the first light source 110A than the second reflective layer 110B1. The second light emitting layer 110B2 is, for example, a semiconductor epitaxial layer including at least one semiconductor epitaxial layer, which can emit light L2a. The second wavelength conversion layer 110B3 can convert the light L2a into a second light L2 having a first wavelength. In the present embodiment, the light L2a is, for example, light having a second wavelength, such as blue light or red light. The second wavelength conversion layer 110B3 includes a plurality of fluorescent particles 110B4, which can excite light to convert the wavelength of the light. For example, the second wavelength conversion layer 110B3 converts the light L2a (e.g., blue light) into the second light L2 (e.g., green light) having the first wavelength. In another embodiment, the light L2a emitted by the second light emitting layer 110B2 can be the second light L2 having the first wavelength; in this example, the second light source 110B can omit the second wavelength conversion layer 110B3.

[0041] As shown in FIG. 1, the third light source 110C is disposed on one side of the first center line S1. In addition, the third light source 110C is disposed along the second center line S2, so that the third light L3 emitted by the third light source 110C is divided into two portions L31 and L32 with respect to the second center line S2. In addition, the second center line S2 passes through the center of the third light source 110C, so that the two portions L31 and L32 of the third light L3 have substantially equal light intensity with respect to the second center line S2. Figure 1A As shown in FIG. 1, the third light source 110C is disposed on one side of the first center line S1. In addition, the third light source 110C is disposed along the second center line S2, so that the third light L3 emitted by the third light source 110C is divided into two portions L31 and L32 with respect to the second center line S2. In addition, the second center line S2 passes through the center of the third light source 110C, so that the two portions L31 and L32 of the third light L3 have substantially equal light intensity with respect to the second center line S2.

[0042] As shown in FIG. 1, the third light source 110C is disposed on one side of the first center line S1. In addition, the third light source 110C is disposed along the second center line S2, so that the third light L3 emitted by the third light source 110C is divided into two portions L31 and L32 with respect to the second center line S2. In addition, the second center line S2 passes through the center of the third light source 110C, so that the two portions L31 and L32 of the third light L3 have substantially equal light intensity with respect to the second center line S2. Figure 1A As shown in FIG. 1, the third light source 110C is disposed on one side of the first center line S1. In addition, the third light source 110C is disposed along the second center line S2, so that the third light L3 emitted by the third light source 110C is divided into two portions L31 and L32 with respect to the second center line S2. In addition, the second center line S2 passes through the center of the third light source 110C, so that the two portions L31 and L32 of the third light L3 have substantially equal light intensity with respect to the second center line S2.

[0043] As shown in FIG. 1, the third light source 110C is disposed on one side of the first center line S1. In addition, the third light source 110C is disposed along the second center line S2, so that the third light L3 emitted by the third light source 110C is divided into two portions L31 and L32 with respect to the second center line S2. In addition, the second center line S2 passes through the center of the third light source 110C, so that the two portions L31 and L32 of the third light L3 have substantially equal light intensity with respect to the second center line S2. Figure 1A As shown in FIG. 1, the third light source 110C is disposed on one side of the first center line S1. In addition, the third light source 110C is disposed along the second center line S2, so that the third light L3 emitted by the third light source 110C is divided into two portions L31 and L32 with respect to the second center line S2. In addition, the second center line S2 passes through the center of the third light source 110C, so that the two portions L31 and L32 of the third light L3 have substantially equal light intensity with respect to the second center line S2.

[0044] As shown in FIG. 1, the third light source 110C is disposed on one side of the first center line S1. In addition, the third light source 110C is disposed along the second center line S2, so that the third light L3 emitted by the third light source 110C is divided into two portions L31 and L32 with respect to the second center line S2. In addition, the second center line S2 passes through the center of the third light source 110C, so that the two portions L31 and L32 of the third light L3 have substantially equal light intensity with respect to the second center line S2. Figure 1AAs shown, the first light splitting member 120A is disposed opposite to the first light source 110A. The first light splitting member 120A is located at one side of the first center line S1, such as the side close to the third light source 110C, so that the first portion L11 of the first light L1 is incident to the first light splitting member 120A, but the second portion L12 is not incident to the first light splitting member 120A. In this way, the second portion L12 of the first light L1 can be incident to the second light source 110B to be reflected by the second light source 110B.

[0045] As shown, Figure 1B the second light splitting member 120B is located at one side of the first center line S1, such as the side close to the third light source 110C, so that the third portion L21 of the second light L2 is incident to the second light splitting member 120B, but the fourth portion L22 is not incident to the second light splitting member 120B. In this way, the fourth portion L22 of the second light L2 can be incident to the first light source 110A to be reflected by the first light source 110A.

[0046] As shown, Figure 1A there is a space SP between the first light splitting member 120A and the second light splitting member 120B, i.e., the first light splitting member 120A and the second light splitting member 120B are disposed separately. The second center line S2 is, for example, through the space SP. In this way, at least a portion of the third light L3 passes through the space SP along the third light path direction P3, i.e., this portion does not penetrate the solid material of the first light splitting member 120A and the second light splitting member 120B. In addition, the first light splitting member 120A and the second light splitting member 120B are disposed opposite to the third light source 110C. For example, the first light splitting member 120A and the second light splitting member 120B are respectively disposed on opposite sides of the second center line S2. In this way, the fifth portion L31 and the sixth portion L32 of the third light L3 can pass through the second light splitting member 120B and the first light splitting member 120A, respectively. In another embodiment, the first light splitting member 120A and the second light splitting member 120B can be connected to each other, for example, the first light splitting member 120A and the second light splitting member 120B are integrally formed, so that the entire third light L3 penetrates the solid material of the first light splitting member 120A and the second light splitting member 120B along the third light path direction P3; more specifically, for example, the first light splitting member 120A and the second light splitting member 120B can also be the lower two surfaces of the same triangular prism, which can be respectively coated and formed, or continuously coated and formed, so that the entire third light L3 penetrates the solid material of the prism and penetrates the first light splitting member 120A or the second light splitting member 120B along the third light path direction P3.

[0047] As shown, Figure 1AAs shown, the first beam splitter 120A and the second beam splitter 120B are configured relative to the third light source 110C. For example, the first beam splitter 120A and the second beam splitter 120B are respectively configured on opposite sides of the second center line S2, so that the two parts L31 and L32 of the third light L3 can be incident on the first beam splitter 120A and the second beam splitter 120B respectively.

[0048] like Figure 1A As shown, the first beam splitter 120A and the second beam splitter 120B can move parallel to each other along the third optical path direction P3 or its opposite direction to adjust the size of the beams with the first wavelength formed by the first light L1 and the second light L2 emitted from the first beam splitter 120A and the second beam splitter 120B, respectively. Preferably, the size of the beam with the first wavelength formed is as close as possible to the size of the beam with the second wavelength formed by the third light L3.

[0049] like Figure 1A As shown, the third beam splitter 120C is configured relative to the third light source 110C. The second center line S2 passes through the third light source 110C and the third beam splitter 120C, for example, through the center of the third light source 110C and the center of the third beam splitter 120C. Thus, the third light L3 emitted by the third light source 110C can be entirely incident on the third beam splitter 120C. Furthermore, the third beam splitter 120C is configured relative to the fourth light source 110D. The center line S3 passes through the fourth light source 110D and the third beam splitter 120C, for example, through the center of the fourth light source 110D and the center of the third beam splitter 120C. Thus, the fourth light L4 emitted by the fourth light source 110D can be entirely incident on the third beam splitter 120C.

[0050] In terms of the configuration of the beam splitter, such as Figure 1A As shown, the angle A1 of the third beam splitter 120C relative to the horizontal reference line is, for example, 45 degrees, so that the light reflected from the third beam splitter 120C is emitted along the first optical path direction P1. In another embodiment, the angle A1 of the third beam splitter 120C relative to the horizontal reference line can be 135 degrees or -45 degrees, and the fourth light source 110D can be configured in... Figure 1A On the other side of the third beam splitter 120C, the light reflected from the third beam splitter 120C can exit along the second optical path direction P2. In addition, the angle A1 of the first beam splitter 120A relative to the horizontal reference line is, for example, 45 degrees, while the angle A1 of the second beam splitter 120B relative to the horizontal reference line is, for example, 135 degrees or -45 degrees.

[0051] In terms of spectral splitting characteristics, a beam splitter is, for example, a dihedral beam splitter. Figure 1A and Figure 1BAs shown, the first beam splitter 120A can reflect a first light L1 with a first wavelength (e.g., green light band) but allows a third light L3 with a second wavelength (e.g., blue light band) to pass through. The second beam splitter 120B can reflect a second light L2 with a first wavelength (e.g., green light band) but allows a third light L3 with a second wavelength (e.g., blue light band) to pass through. The third beam splitter 120C can reflect the first light L1 and the second light L2 with a first wavelength (e.g., green light band) and the third light L3 with a second wavelength (e.g., blue light band), but allows a fourth light L4 with a third wavelength (e.g., red light band) to pass through.

[0052] A condenser lens can focus the light emitted by a light source, making the light collimated (or parallel or nearly parallel) after passing through the condenser lens. A condenser lens contains at least one lens, which can be a spherical lens, an aspherical lens, or a combination thereof.

[0053] like Figure 1A As shown, the first condenser lens 130A is configured opposite to the first light source 110A. The first condenser lens 130A is configured along the first center line S1. For example, the first center line S1 passes through the center of the first condenser lens 130A, so that the first part L11 and the second part L12 incident on the first condenser lens 130A have approximately equal light intensity relative to the first center line S1.

[0054] like Figure 1A As shown, the second condenser lens 130B is configured opposite to the second phase light source 110B. The second condenser lens 130B is configured along the first center line S1, for example, the first center line S1 passes through the center of the second condenser lens 130B, so that the third portion L21 and the fourth portion L22 incident on the second condenser lens 130B have approximately equal light intensity relative to the first center line S1. The first condenser lens 130A and the second condenser lens 130B have the same or similar effective focal length (EFL) to ensure that the beam sizes of the first light and the second light are close (or even equal).

[0055] like Figure 1A As shown, the third condenser lens 130C is arranged opposite to the third light source 110C. The third condenser lens 130C is arranged along the second center line S2. For example, the second center line S2 passes through the center of the third condenser lens 130C, so that the fifth part L31 and the sixth part L32 incident on the third condenser lens 130C have approximately the same amount of light relative to the second center line S2.

[0056] like Figure 2As shown, the fourth condenser lens 130D is arranged opposite to the fourth light source 110D. The fourth condenser lens 130D is arranged along the center line S3. For example, the center line S3 passes through the center of the fourth condenser lens 130D, so that the fifth part L41 and the sixth part L42 incident on the fourth condenser lens 130D have approximately the same amount of light relative to the center line S3.

[0057] Please refer to Figure 2 The diagram illustrates the optical path of a light source module 200 according to another embodiment of the present invention. The light source module 200 includes a first light source 110A, a second light source 110B, a third light source 110C, a fourth light source 110D, a first beam splitter 120A, a second beam splitter 120B, a third beam splitter 120C, at least one condenser lens (e.g., a first condenser lens 130A, a second condenser lens 130B, and a third condenser lens 130C), a first reflector 240A, and a second reflector 240B. The light source module 200 of this embodiment has similar or identical technical features to the light source module 100, except that the light source module 200 includes additional reflectors, such as mirrors.

[0058] like Figure 2 As shown, the first reflector 240A is configured relative to the first light source 110A. A first portion L11 of the first light L1 is incident along the first optical path direction P1 onto the first beam splitter 120A, and reflected by the first beam splitter 120A and the third beam splitter 120C to the module 10. A second portion L12 of the first light L1 is incident along the first optical path direction P1 onto the first reflector 240A, and reflected back from the first reflector 240A to the first light source 110A (hereinafter referred to as "second reflection portion L12'"). After reflection from the first light source 110A, the second reflection portion L12' becomes the second reflection portion L12''. The optical path of this second reflection portion L12'' is similar to or the same as the optical path of the first light L1, and will not be described further here.

[0059] Furthermore, due to the configuration of the first reflector 240A, the light rays (spots) reflected back from the first reflector 240A to the first light source 110A will not be misaligned with the first light source 110A, thus achieving a better object-image matching effect. Moreover, since the light rays (spots) reflected back from the first reflector 240A to the first light source 110A will not be misaligned with the first light source 110A, the light rays (spots) reflected back from the first reflector 240A to the first light source 110A can be completely reflected by the first reflective layer 110A1 of the first light source 110A, preventing any light leakage.

[0060] like Figure 2As shown, the second reflector 240B is positioned relative to the second light source 110B. The third portion L21 of the second light L2 is incident along the second optical path direction P2 onto the second beam splitter 120B, and reflected by the second beam splitter 120B and the third beam splitter 120C to the module 10. The fourth portion L22 of the second light L2 is incident along the second optical path direction P2 onto the second reflector 240B, and reflected back from the second reflector 240B to the second light source 110B (hereinafter referred to as "the fourth reflection portion L22'"). After being reflected from the second light source 110B, the fourth reflection portion L22' becomes the fourth reflection portion L22''. The optical path of this fourth reflection portion L22'' is similar to or the same as the optical path of the second light L2, and will not be described further here.

[0061] Furthermore, due to the configuration of the second reflector 240B, the light rays (spots) reflected back to the second light source 110B from the second reflector 240B will not be misaligned with the second light source 110B, thus achieving a better object-image matching effect. Moreover, since the light rays (spots) returning from the second reflector 240B to the second light source 110B will not be misaligned with the second light source 110B, the light rays (spots) returning from the second reflector 240B to the second light source 110B can be completely reflected by the second reflective layer 110B1 of the second light source 110B, preventing any light leakage.

[0062] like Figure 2 As shown, the first light source 110A and the second light source 110B are arranged along the first center line S1. The first beam splitter 120A and the first reflector 240A are respectively arranged on opposite sides of the first center line S1. Thus, the first portion L11 and the second portion L12 of the first light L1 are incident on the first beam splitter 120A and the first reflector 240A, respectively. Similarly, the second beam splitter 120B and the second reflector 240B are respectively arranged on opposite sides of the first center line S1. Thus, the third portion L21 and the fourth portion L22 of the second light L2 are incident on the second beam splitter 120B and the second reflector 240B, respectively.

[0063] like Figure 3 As shown, the first reflector 240A is located outside the optical path of the first portion L11 of the first light L1 (i.e., the first reflector 240A is not located in the optical path of the first portion L11), which can avoid blocking the travel of the first portion L11, or reduce the amount of light blocked from the first portion L11. The second reflector 240B is located outside the optical path of the third portion L21 of the second light L2 (i.e., the second reflector 240B is not located in the optical path of the third portion L21), which can avoid blocking the travel of the third portion L21 of the second light L2, or reduce the amount of light blocked from the third portion L21.

[0064] Please refer to Figure 4Fig. 3 shows a schematic diagram of an optical path of a light source module 300 according to another embodiment of the present application. The light source module 300 includes a first light source 110A, a second light source 110B, a third light source 110C, a fourth light source 310D, a fifth light source 310E, a first light splitting member 120A, a second light splitting member 120B, a third light splitting member 120C, at least one condenser lens (e.g., a first condenser lens 130A, a second condenser lens 130B, a third condenser lens 130C, a fourth condenser lens 130D, a fifth condenser lens 330E), a first reflecting member 240A, a second reflecting member 240B, a third reflecting member 340A, a fourth reflecting member 340B, and a fifth reflecting member 340C.

[0065] The third light source 110C is configured to emit a third light L3 having a second wavelength, the fourth light source 310D is configured to emit a fourth light L4 having a third wavelength, and the fifth light source 310E is configured to emit a fifth light L5 having the third wavelength. In the present embodiment, the third light L3 is, for example, blue light, and the fourth light L4 and the fifth light L5 are, for example, red light.

[0066] The fifth light source 310E is disposed along a fourth center line S4, for example, the fourth center line S4 passes through the center of the fifth light source 310E. The fifth light L5 is split into a seventh portion L51 and an eighth portion L52 with respect to the fourth center line S4. The fourth reflecting member 340B and the fifth reflecting member 340C are disposed on opposite sides of the fourth center line S4, respectively. In this way, the seventh portion L51 and the eighth portion L52 of the fifth light L5 can be incident to the fourth reflecting member 340B and the fifth reflecting member 340C, respectively.

[0067] In detail, the seventh portion L51 of the fifth light L5 is incident to the fourth reflecting member 340B along a fourth optical path direction P4, and sequentially incident to the module 10 via the fourth reflecting member 340B and the third light splitting member 120C. The eighth portion L52 of the fifth light L5 is reflected from the fifth reflecting member 340C back to the fifth light source 310E (hereinafter referred to as an eighth reflected portion L52’). The fifth light source 310E includes a reflecting layer 310E1. The eighth reflected portion L52’ is reflected from the reflecting layer 310E1 to become an eighth reflected portion L52”, and the optical path of the eighth reflected portion L52” is similar or identical to that of the fifth light L5, which will not be described herein again. In addition, the fourth optical path direction P4 is opposite to the third optical path direction P3.

[0068] In one embodiment, the fifth light source 310E further includes a light emitting layer 310E2 and a wavelength conversion layer 310E3. The light emitting layer 310E2 is formed between the wavelength conversion layer 310E3 and the reflective layer 310E1, and the wavelength conversion layer 310E3 is closer to the fifth condenser lens 330E than the reflective layer 310E1. The light emitting layer 310E2 is, for example, a semiconductor epitaxial layer including at least one semiconductor epitaxial layer, which can emit light L51b. The wavelength conversion layer 310E3 converts the light L51b into the fifth light L5 having a second wavelength. The wavelength conversion layer 310E3 includes a plurality of fluorescent particle wavelength conversion layers 310E4, which are excited by incident light to emit converted light different from the incident light. For example, the wavelength conversion layer 310E3 converts the light L51b (e.g., blue light) into the fifth light L5 (e.g., red light) having a second wavelength. In another embodiment, the light emitting layer 310E2 can directly emit red light, and in this case, the fifth light source 310E can omit the wavelength conversion layer 310E3.

[0069] The third reflective member 340A is disposed opposite the fourth light source 310D. For example, the third reflective member 340A is disposed on one side of the center line S3, such as the side close to the fifth light source 310E. The fourth light L4 includes a fifth portion L41 and a sixth portion L42, the fifth portion L41 is incident to the third light splitting member 120C along the first light path direction P1 and penetrates the third light splitting member 120C to be incident to the module 10. The sixth portion L42 is incident to the third reflective member 340A along the first light path direction P1 and is reflected by the third reflective member 340A back to the fourth light source 310D (hereinafter referred to as "the sixth reflected portion L42'"). The fourth light source 310D includes a reflective layer 310D1. The sixth reflected portion L42' is reflected from the fourth light source 310D to become a sixth reflected portion L42", and the light path of the sixth reflected portion L42" is similar or identical to that of the fourth light L4, which will not be described herein again.

[0070] In one embodiment, the fourth light source 310D further includes a light emitting layer 310D2 and a wavelength conversion layer 310D3. The light emitting layer 310D2 is formed between the wavelength conversion layer 310D3 and the reflective layer 310D1, and the wavelength conversion layer 310D3 is closer to the fourth condenser lens 130D than the reflective layer 310D1. The light emitting layer 310D2 is, for example, a semiconductor epitaxial layer including at least one semiconductor epitaxial layer, which can emit light L41a. The wavelength conversion layer 310D3 converts the light L41a into the fourth light L4 having a second wavelength. The wavelength conversion layer 310D3 includes a plurality of fluorescent particle wavelength conversion layers 310D4, which are excited by incident light to emit converted light different from the incident light. For example, the wavelength conversion layer 310D3 converts the light L41a (e.g., blue light) into the fourth light L4 (e.g., red light) having a second wavelength. In another embodiment, the light emitting layer 310D2 can directly emit red light, and in this case, the fourth light source 310D can omit the wavelength conversion layer 310D3.

[0071] The fourth light source 110D of the foregoing embodiment has the same or similar structure as the fourth light source 310D, except that the fourth light source 110D can selectively omit the reflective layer.

[0072] In addition, a fifth condenser 330E is disposed opposite the fifth light source 310E. The fifth condenser 330E is disposed along a fourth center line S4, e.g., the fourth center line S4 passes through the center of the fifth condenser 330E, so that the seventh portion L51 and the eighth portion L52 of the light incident to the fifth condenser 330E have substantially equal light amounts with respect to the fourth center line S4.

[0073] Please refer to Figure 1A which shows a light path schematic diagram of a light source module 400 according to another embodiment of the present application. Although not shown, the light path of the light source module 400 can further include the light path of the first light L1 emitted by the first light source 110A and / or the light path of the second light L2 emitted by the second light source 110B.

[0074] The light source module 400 includes the first light source 110A, the second light source 110B, the third light source 410C, the fourth light source 410D, the fifth light source 410E, the first light splitting member 420A, the second light splitting member 420B, the third light splitting member 420C, and at least one condenser (e.g., the first condenser 130A, the second condenser 130B, the third condenser 130C, the fourth condenser 130D, the fifth condenser 330E).

[0075] The third light source 410C is configured to emit third light L3 having a second wavelength along a third light path direction P3 to the first light splitting member 420A and the second light splitting member 420B. The fourth light source 410D is configured to emit fourth light L4 having a third wavelength along the first light path direction P1 to the third light splitting member 420C. The fifth light source 410E is configured to emit fifth light L5 having the third wavelength along a fourth light path direction P4 to the third light splitting member 420C. The first wavelength conversion layer 110A3 and the second wavelength conversion layer 110B3 are configured to convert the fifth light L5 having the third wavelength into light having a first wavelength. In this embodiment, the third light L3 is, for example, red light, and the fourth light L4 and the fifth light L5 are, for example, blue light.

[0076] The relative relationship between the third light source 410C, the first light splitting member 420A, and the second light splitting member 420B is similar to the relative relationship between the third light source 110C, the first light splitting member 420A, and the second light splitting member 420B, which will not be described again. The relative relationship between the fourth light source 410D and the third light splitting member 420C is similar to the relative relationship between the fourth light source 110D and the third light splitting member 120C, which will not be described again.

[0077] The fifth light source 410E is disposed along a fourth center line S4, for example, the fourth center line S4 passes through the center of the fifth light source 410E. The fifth light L5 is split into a seventh portion L51 and an eighth portion L52 relative to the fourth center line S4. The seventh portion L51 sequentially passes through the fourth condenser lens 330E, the third light splitting piece 420C, the first light splitting piece 420A, and the first condenser lens 130A to the first light source 110A. After the seventh portion L51 is converted by the first wavelength conversion layer 110A3 of the first light source 110A into converted light L51a having the first wavelength, a portion of the converted light L51a is reflected by the first reflective layer 110A1 to the first condenser lens 130A, while another portion of the converted light L51a can be directly reflected from the fluorescent particles 110A4 (without passing through the first reflective layer 110A1) to the first condenser lens 130A. In addition, the seventh portion L51 that is not converted by the fluorescent particles 110A4 can be reflected again by the first reflective layer 110A1 back to the first wavelength conversion layer 110A3 to increase the probability of being converted by the fluorescent particles 110A4. The optical path of the converted light L51a provided by the first light source 110A is similar or the same as the optical path of the first light L1 emitted by the first light source 110A (the first light L1 is shown in FIG. 1), which will not be described herein again. Similarly, after the eighth portion L52 is converted by the second wavelength conversion layer 110B3 of the second light source 110B into converted light L52a having the first wavelength, a portion of the converted light L52a is reflected by the second reflective layer 110B1 to the second condenser lens 130B, while another portion of the converted light L52a can be directly reflected from the fluorescent particles 110B4 (without passing through the second reflective layer 110B1) to the second condenser lens 130B. In addition, the eighth portion L52 that is not converted by the fluorescent particles 110B4 can be reflected again by the second reflective layer 110B1 back to the second wavelength conversion layer 110B3 to increase the probability of being converted by the fluorescent particles 110B4. The optical path of the converted light L52a provided by the second light source 110B is similar or the same as the optical path of the second light L2 emitted by the second light source 110B (the second light L2 is shown in FIG. 1), which will not be described herein again Figure 1B Figure 4

[0078] In summary, although the wavelength of the fifth light L5 emitted by the fifth light source 410E is different from the first wavelength, the fifth light L5 can be converted by the first wavelength conversion layer 110A3 and the second wavelength conversion layer 110B3 into converted light L51a and L52a having the first wavelength, thereby increasing the amount of light having the first wavelength provided by the light source module 400 to the module 10.

[0079] In another embodiment, Figure 4 ​​The first light source 110A can not emit the first light Ll and / or the second light source 110B can not emit the second light L2. In detail, by the first wavelength conversion layer 110A3 and the first reflective layer 110A1, the first light source 110A can provide the converted light L51a with the first wavelength (as if emitting the converted light L51a) and / or by the second wavelength conversion layer 110B3 and the second reflective layer 110B1, the second light source 11B can provide the converted light L52a with the first wavelength (as if emitting the converted light L52a). In this example, the first light source 110A can omit the first light emitting layer 110A2 and / or the second light source 11B can omit the second light emitting layer 110B2; that is, the first light source 110A includes the first wavelength conversion 110A3 disposed on the first reflective layer 110A1, while the second light source 110B includes the second wavelength conversion layer 110B3 disposed on the second reflective layer 110B1.

[0080] In terms of the light splitting characteristics, as shown in FIG. 4A, the first light splitting member 420A can reflect the first light Ll and the second light L2 (not shown in FIG. 4A) with the first wavelength (e.g., the green light band) and reflect the fifth light L5 (e.g., the blue light band) with the third wavelength, but allow the third light L3 (e.g., the red light band) with the second wavelength to penetrate. The second light splitting member 420B can reflect the second light L2 and the first light Ll (not shown in FIG. 4A) with the first wavelength (e.g., the green light band) and reflect the fifth light L5 (e.g., the blue light band) with the third wavelength, but allow the third light L3 (e.g., the red light band) with the second wavelength to penetrate. The third light splitting member 420C can reflect the first light Ll (not shown in FIG. 4A) and the second light L2 (not shown in FIG. 4A) with the first wavelength (e.g., the green light band) and reflect the third light L3 (e.g., the red light band) with the second wavelength, but allow the fourth light L4 (e.g., the yellow light band) and the fifth light L5 (e.g., the blue light band) with the third wavelength to penetrate. Figure 4 Figure 4 Figure 4 Figure 4 Figure 5

[0081] Figure 5 FIG. 5 shows a light path diagram of a light source module 500 according to another embodiment of the present application. The light source module 500 includes a first light source 110A, a second light source 110B, a third light source 410C, a fourth light source 410D, a fifth light source 410E, a first light splitting member 420A, a second light splitting member 420B, a third light splitting member 420C, at least one condenser lens (e.g., a first condenser lens 130A, a second condenser lens 130B, a third condenser lens 130C, a fourth condenser lens 130D, a fifth condenser lens 130E), a first reflective member 240A, and a second reflective member 240B.

[0082] ​​​​​​The light source module 500 of the embodiment of the present application has the same or similar features as the light source module 400, except that the light source module 500 further comprises a first reflecting member 240A and a second reflecting member 240B. The first reflecting member 240A and the second reflecting member 240B are configured and / or function in the same or similar manner as the first reflecting member 240A and the second reflecting member 240B of the light source module 200 described above, and thus will not be described again here.

[0083] As shown in FIG. 6, a seventh portion L51 of the fifth light L5 is incident on the first light source 110A via the third light splitting member 420C and the first light splitting member 420A. The seventh portion L51 is converted by the first wavelength conversion layer 110A3 of the first light source 110A into converted light L51a having the first wavelength, and the converted light L51a is reflected by the first reflecting layer 110A1 to the first condenser lens 130A. The optical path of the converted light L51a reflected from the first light source 110A is similar or identical to the optical paths of the first portion L11 and the second portion L12 of the first light L1, and thus will not be described again here. Similarly, an eighth portion L52 of the fifth light L5 is incident on the second light source 110B via the third light splitting member 420C and the second light splitting member 420B. The eighth portion L52 is converted by the second wavelength conversion layer 110B3 of the second light source 110B into converted light L52a having the first wavelength, and the converted light L51a is reflected by the second reflecting layer 110B1 to the second condenser lens 130B. The optical path of the converted light L52a reflected from the second light source 110B is similar or identical to the optical paths of the third portion L21 and the fourth portion L22 of the second light L2, and thus will not be described again here. Figure 3 Figure 3 As shown in FIG. 6, a seventh portion L51 of the fifth light L5 is incident on the first light source 110A via the third light splitting member 420C and the first light splitting member 420A. The seventh portion L51 is converted by the first wavelength conversion layer 110A3 of the first light source 110A into converted light L51a having the first wavelength, and the converted light L51a is reflected by the first reflecting layer 110A1 to the first condenser lens 130A. The optical path of the converted light L51a reflected from the first light source 110A is similar or identical to the optical paths of the first portion L11 and the second portion L12 of the first light L1, and thus will not be described again here. Similarly, an eighth portion L52 of the fifth light L5 is incident on the second light source 110B via the third light splitting member 420C and the second light splitting member 420B. The eighth portion L52 is converted by the second wavelength conversion layer 110B3 of the second light source 110B into converted light L52a having the first wavelength, and the converted light L51a is reflected by the second reflecting layer 110B1 to the second condenser lens 130B. The optical path of the converted light L52a reflected from the second light source 110B is similar or identical to the optical paths of the third portion L21 and the fourth portion L22 of the second light L2, and thus will not be described again here. Figure 6

[0084] Please refer to FIG. 6, which shows a schematic diagram of the optical path of a light source module 600 according to another embodiment of the present application. The light source module 600 comprises a first light source 110A, a second light source 110B, a third light source 410C, a fourth light source 110D, a fifth light source 410E, a first light splitting member 420A, a second light splitting member 420B, a third light splitting member 420C, at least one condenser lens (e.g., a first condenser lens 130A, a second condenser lens 130B, a third condenser lens 130C, a fourth condenser lens 130D, a fifth condenser lens 330E), and a relay lens 650. ​ The light source module 600 has the same or similar technical features as the light source module 400 described above, except that the light source module 600 comprises the relay lens 650. The relay lens 650 can make the module pass through a longer path, and also obtain better efficiency.

[0085]

[0086] ​​​In summary, the present disclosure provides a light source module, which includes at least one light splitting member and two light sources. The two light sources are oppositely arranged and / or have substantially parallel optical axes. The at least one light splitting member is arranged between the two light sources, so that the optical path of the light emitted from the two light sources can be shortened. In addition, the use of two light sources with the same wavelength and arranged on opposite sides can increase the brightness of the light source module. Furthermore, the light source herein is, for example, an active light source (with a semiconductor epitaxial layer), such as a light-emitting diode (LED) or a laser diode (LD), but can also be a light source that converts the wavelength of external light and reflects it out (for example, without a light-emitting layer).

[0087] The present application has been described by the above-mentioned related embodiments, however, the above-mentioned embodiments are only examples of implementing the present application. It must be pointed out that the disclosed embodiments do not limit the scope of the present application. On the contrary, modifications and improvements made without departing from the spirit and scope of the present application are within the scope of the patent protection of the present application.

Claims

1. A light source module, characterized by Comprising: a first light splitting member; a second light splitting member; a first light source configured to emit a first light having a first wavelength, the first light traveling in a first light path direction to the first light splitting member; a second light source configured to emit a second light having the first wavelength, the second light traveling in a second light path direction to the second light splitting member, the first light path direction being opposite to the second light path direction; and a third light source configured to emit a third light having a second wavelength, the third light traveling in a third light path direction, wherein the third light path direction is substantially perpendicular to the first light path direction, and the second wavelength is different from the first wavelength; wherein the first light source comprises a first reflective layer, and the second light source comprises a second reflective layer, the first reflective layer and the second reflective layer being configured to reflect light having the first wavelength.

2. The light source module of claim 1, wherein The first light source and the second light source are disposed along a center line, and the third light source, the first light splitting member and the second light splitting member are disposed on the same side of the center line.

3. The light source module of claim 2, wherein the light source module is configured to be mounted on a printed circuit board (PCB) of a display device. The center line passes through the center of the first light source and the center of the second light source.

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 third light source is disposed along a center line, and the first light splitting member and the second light splitting member are disposed on opposite sides of the center line, respectively.

5. The light source module of claim 4, wherein the light source module is configured to be mounted on a printed circuit board (PCB) of a display device. Further comprising: a third light splitting member configured to reflect the first light and the second light having the first wavelength, and reflect the third light having the second wavelength; wherein the center line passes through the center of the third light splitting member.

6. The light source module of claim 1, wherein the light source module is configured to be mounted on a printed circuit board. Further comprising: at least one condenser mirror disposed opposite to at least one of the first light source, the second light source and the third light source.

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. Further comprising: a third light splitting member configured to reflect the first light and the second light having the first wavelength, and reflect the third light having the second wavelength, and allow light having a third wavelength to pass through; and a fourth light source configured to emit a fourth light having the third wavelength, the fourth light traveling in the first light path direction to the third light splitting member.

8. The light source module of claim 7, wherein the light source module is configured to be mounted on a printed circuit board (PCB) of a display device. Further comprising: a condenser mirror disposed opposite to the fourth light source.

9. 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 first light splitting member and the second light splitting member are connected to each other; wherein the third light is incident on the first light splitting member and the second light splitting member in the third light path direction; or The first light splitting member and the second light splitting member have a gap therebetween, and at least a portion of the third light passes through the gap in the third light path direction.

10. 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 first light comprises a first portion and a second portion, the first portion is incident on the first light splitting member in the first light path direction, and the second portion is incident on the second light source in the first light path direction; the second light comprises a third portion and a fourth portion, the third portion is incident on the second light splitting member in the second light path direction, and the fourth portion is incident on the first light source in the second light path direction.

11. 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. Further comprising: a first reflective member disposed opposite to the first light source; and a second reflective member disposed opposite to the second light source; wherein the first light comprises a first portion and a second portion, the first portion is incident on the first light splitting member in the first light path direction, and the second portion is incident on the first reflective member in the first light path direction; the second light comprises a third portion and a fourth portion, the third portion is incident on the second light splitting member in the second light path direction, and the fourth portion is incident on the second reflective member in the second light path direction. ​ 12. The light source module of claim 11, wherein the light source module is configured to be mounted on a printed circuit board (PCB) of a display device. The first light source and the second light source are arranged along a center line, the third light source, the first light splitting member and the second light splitting member are arranged on one side of the center line, and the first reflecting member and the second reflecting member are arranged on the other side of the center line.

13. The light source module of claim 12, wherein the light source module is configured to be mounted on a printed circuit board (PCB) of a display device. The first reflecting member is located outside the light path of the first part of the first light, and the second reflecting member is located outside the light path of the third part of the second light.

14. The light source module of claim 7, wherein the light source module is configured to be mounted on a printed circuit board (PCB) of a display device. Further comprising: a third reflecting member arranged opposite the fourth light source; wherein the fourth light comprises a fifth part and a sixth part, the fifth part is incident on the third light splitting member along the first light path direction, and the sixth part travels along the first light path direction to the third reflecting member.

15. The light source module of claim 14, wherein the light source module is configured to be mounted on a printed circuit board (PCB) of a display device. The fourth light source is arranged along a center line, and the third reflecting member is arranged on one side of the center line.

16. The light source module of claim 7, wherein the light source module is configured to be mounted on a printed circuit board (PCB) of a display device. Further comprising: a fourth reflecting member; a fifth reflecting member; and a fifth light source for emitting fifth light having the third wavelength, the fifth light travels along a fourth light path direction, wherein the fifth light comprises a seventh part and an eighth part, the seventh part is incident on the fourth reflecting member along the fourth light path direction, and the eighth part is incident on the fifth reflecting member along the fourth light path direction.

17. The light source module of claim 16, wherein the light source module is configured to be mounted on a printed circuit board (PCB) of a display device. The fifth light source is arranged along a center line, and the fourth reflecting member and the fifth reflecting member are arranged on opposite sides of the center line.

18. The light source module of claim 7, wherein the light source module is configured to be mounted on a printed circuit board (PCB) of a display device. Further comprising: a fifth light source for emitting fifth light having the third wavelength, the fifth light is incident on the first light splitting member and the second light splitting member along a fourth light path direction, and the fourth light path direction is opposite to the third light path direction; wherein the first light source further comprises a first wavelength conversion layer, and the second light source further comprises a second wavelength conversion layer, the first wavelength conversion layer and the second wavelength conversion layer are used to convert the fifth light having the third wavelength into light having the first wavelength.

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