Light source module

Abstract

The present application provides a light source module, which comprises 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 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 to the first light splitting member along a second light path direction, and the first light path direction and the second light path direction are substantially perpendicular. The third light source is used to emit third light with a second wavelength to the first light splitting member and the second light splitting member along a third light path direction, wherein the third light path direction is opposite to the second light path direction, and the second wavelength is different from the first wavelength. 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 with the first wavelength. In this way, the present application uses two light sources with the same wavelength and arranged on adjacent 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 carrying and storing. 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 first light splitting member, the first light path direction being substantially perpendicular 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 to the first light splitting member and the second light splitting member, wherein the third light path direction is opposite to the second 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 splitting member is used to reflect the first light and the second light having the first wavelength, and reflect the third light having the second wavelength; the second light splitting member is used to reflect the first light and the second light having the first wavelength, and allow the third light having the second wavelength to penetrate.

[0006] Preferably, further comprising: a fourth light source for emitting a fourth light having a third wavelength; a third light splitting member oppositely arranged with the third light source and the fourth light source; the third light is incident to the third light splitting member along the third light path direction, the fourth light is incident to the third light splitting member along the first light path direction or the opposite direction of the first light path direction, and the third light and the fourth light travel along the third light path direction to the first light splitting member and the second light splitting member.

[0007] Preferably, the fourth light source is arranged along a center line, and the center line passes through the center of the third light splitting member.

[0008] Preferably, further comprising: a fourth light splitting member disposed between the third light source and the second light source, the fourth light splitting member being configured to allow the first light having the first wavelength to pass through, and the fourth light splitting member being configured to reflect the third light having the second wavelength.

[0009] Preferably, the third light source is disposed along a center line, and the first light splitting member and the fourth light splitting member are disposed on opposite sides of the center line, respectively.

[0010] Preferably, 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.

[0011] Preferably, the first light source is disposed along a first center line, and the first light splitting member is disposed on one side of the first center line; and the second light source is disposed along a second center line, and the first light splitting member is disposed on one side of the second center line.

[0012] Preferably, further comprising: a first reflecting member disposed opposite to the first light source and configured to reflect the first light having the first wavelength; and a second reflecting member disposed opposite to the second light source and configured to reflect the second light having the first wavelength.

[0013] Preferably, the first light splitting member is configured to allow the first light having the first wavelength to pass through, and the first light splitting member is configured to reflect the third light having the second wavelength; and the second light splitting member is configured to reflect the second light having the first wavelength.

[0014] Preferably, the first light source is disposed along a first center line, and the first light splitting member and the first reflecting member are disposed on opposite sides of the first center line, respectively.

[0015] Preferably, the second light source is disposed along a second center line, and the second light splitting member and the second reflecting member are disposed on opposite sides of the second center line, respectively.

[0016] Preferably, the first light source is disposed along a first center line, and the first center line passes through a center of the first light splitting member.

[0017] Preferably, the third light source is disposed along a second center line, and the light source module further comprises: a third light splitting member configured to reflect the third light having the second wavelength; and a fourth light splitting member configured to reflect the third light having the second wavelength, and the fourth light splitting member is configured to allow the first light and the second light having the first wavelength to pass through; wherein the third light splitting member and the fourth light splitting member are disposed on opposite sides of the second center line, respectively.

[0018] Preferably, the light source module further comprises a fourth light source configured to emit fourth light having the third wavelength; wherein the third light splitting element and the fourth light splitting element are further configured to allow the fourth light having the third wavelength to pass through; and wherein the fourth light source is arranged along a fourth center line, and the second light splitting element and the third light splitting element are arranged on opposite sides of the fourth center line, respectively.

[0019] Preferably, the first light splitting element is configured to allow light having the third wavelength to pass through; the light source module further comprises a fifth light splitting element configured to reflect light having the third wavelength, and a fifth light source configured to emit fifth light having the third wavelength, a first portion of the fifth light travels to the first light source via the first light splitting element, and a second portion of the fifth light travels to the second light source via the fifth light splitting element; wherein the first light source further comprises a first wavelength conversion layer, and the second light source further comprises a second wavelength conversion layer, and the first wavelength conversion layer and the second wavelength conversion layer are configured to convert the fifth light having the third wavelength into light having the first wavelength.

[0020] Preferably, the third light source is arranged along a second center line, and the fifth light splitting element is arranged on one side of the second center line.

[0021] Preferably, the first light source, the second light source and the third light source are arranged along a first center line, a second center line and a third center line, respectively, and the first center line and the third center line substantially coincide, and the second center line is substantially perpendicular to the first center line and the third center line.

[0022] 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 adjacent 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

[0023] Figure 1A and Figure 1B A schematic diagram of a light source module according to an embodiment of the present application is shown.

[0024] Figure 2 A light path schematic diagram of a light source module according to another embodiment of the present application is shown.

[0025] Figure 3A and Figure 3B A light path schematic diagram of a light source module according to another embodiment of the present application is shown.

[0026] Figure 4 A light path schematic diagram of a light source module according to another embodiment of the present application is shown.

[0027] Figure 5 A light path schematic diagram of a light source module according to another embodiment of the present application is shown. Detailed Implementation

[0028] To provide a further understanding of the purpose, structure, features, and functions of the present invention, detailed descriptions are provided below with reference to specific embodiments.

[0029] Please refer to Figure 1A and Figure 1B The diagram illustrates a light source module 100 according to an embodiment of the present invention. The light source module 100 can be applied to a device that requires a light source, such as a projector, illuminator, display, or other type of device. When applied to a projection device, the light source module 100 can also be referred to as a light combining module.

[0030] 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 beam splitter 120A, a second beam splitter 120B, a third beam splitter 120C, a fourth beam splitter 120D, and at least one condenser lens (e.g., a first condenser lens 130A, a second condenser lens 130B, a third condenser lens 130C, and a fourth condenser lens 130D).

[0031] like Figure 1A As shown, the first light source 110A emits a first light L1 (a collection of the first part L11 and the second part L12) having a first wavelength, which travels along the first optical path direction P1 to the first beam splitter 120A. Figure 1B As shown, the second light source 110B emits a second light L2 (a combination of the third part L21 and the fourth part L22) with a first wavelength along the second optical path direction P2 to the first beam splitter 120A and the second beam splitter 120B. The first optical path direction P1 is substantially perpendicular to the second optical path direction P2. The third light source 110C emits a third light L3 with a second wavelength that travels along the third optical path direction P3, where the third optical path direction P3 is opposite to the second optical path direction P2, and the second wavelength is different from the first wavelength. In other words, the third optical path direction P3 is opposite to the second optical path direction P2, and the third light L3 travels towards the second light L2. 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 used to reflect light. For example, the first reflective layer 110A1 reflects a portion of the second light L2 (e.g., the fourth part L22, described later), while the second reflective layer 110B1 reflects a portion of the first light L1 (e.g., the second part L12, described later). Thus, by configuring the first beam splitter 120A and the second beam splitter 120B, the light paths of the first light L1 and the second light L2 can be shortened. Furthermore, using two light sources with the same wavelength placed on adjacent sides, the first light source 110A and the second light source 110B, can increase the emitted light brightness of the light source module 100.

[0032] 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.

[0033] like Figure 1A and Figure 1B As shown, the first light source 110A and the second light source 110B are arranged adjacent to each other. The first light source 110A is arranged along the first center line (or optical axis) S1, for example, the first center line S1 passes through the center of the first light source 110A. The first light L1 emitted by the first light source 110A is divided into a first part L11 and a second part L12 relative to the first center line S1. The first part L11 is incident on the module 10 along the first optical path direction P1 on one side of the first center line S1 via the fourth beam splitter 120D. The module 10 is, for example, an illumination module or an imaging module. The second part L12 is incident on the first beam splitter 120A along the first optical path direction P1 on the other side of the first center line S1, and then incident on the second light source 110B via the first beam splitter 120A, and 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.

[0034] like Figure 1B As shown, the second light source 110B is arranged along the second center line S2, for example, the second center line S2 passes through the center of the second light source 110B. 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 second center line S2. The third part L21 is incident on one side of the second center line S2 along the second optical path direction P2 to the fourth beam splitter 120D, and then incident on the module 10 via the fourth beam splitter 120D and the second beam splitter 120B. The fourth part L22 is incident on the other side of the second center line S2 along the second optical path direction P2 to the first beam splitter 120A, and then incident on the first light source 110A via the first beam splitter 120A, and then 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 Similar to or the same as shown, it will not be elaborated further here.

[0035] Similar to the optical path of the second ray L2, the second reflection part L12' ( Figure 1A A 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.

[0036] 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 occur simultaneously.

[0037] 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 first beam splitter 120A than the first reflective layer 110A1. The first light-emitting layer 110A2, for example, contains at least one semiconductor epitaxial layer, which can emit light L1a. The first wavelength conversion layer 110A3 can convert light L1a into first light L1 with a first wavelength. In this embodiment, 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, which can excite light to convert the wavelength of the light. For example, the first wavelength conversion layer 110A3 converts light L1a (e.g., blue light) into 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.

[0038] 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 beam splitter 120A or the fourth beam splitter 120D than the second reflective layer 110B1. The second light-emitting layer 110B2, for example, contains at least one semiconductor epitaxial layer that can emit light L2a. The second wavelength conversion layer 110B3 can convert light L2a into second light L2 having a first wavelength. In this embodiment, light L2a is, for example, light with a second wavelength, such as blue light or red light. The second wavelength conversion layer 110B3 contains a plurality of fluorescent particles 110B4 that can excite light to convert the wavelength of the light. For example, the second wavelength conversion layer 110B3 converts light L2a (e.g., blue light) into second light L2 (e.g., green light) having a first wavelength. In another embodiment, the light L2a emitted by the second light-emitting layer 110B2 may be a second light L2 with a first wavelength; in this example, the second wavelength conversion layer 110B3 may be omitted from the second light source 110B.

[0039] like Figure 1A As shown, the third light source 110C is arranged along the third center line S3. For example, the third center line S3 passes through the center of the third light source 110C. The third light L3 emitted by the third light source 110C is divided into a fifth part L31 and a sixth part L32 relative to the third center line S3. The fifth part L31 is incident on one side of the third center line S3 along the third optical path direction P3 to the third beam splitter 120C, and then incident on the module 10 via the third beam splitter 120C, the second beam splitter 120B, and the fourth beam splitter 120D. The sixth part L32 is incident on the other side of the third center line S3 along the third optical path direction P3 to the third beam splitter 120C, and then incident on the module 10 via the third beam splitter 120C, the first beam splitter 120A, and the second beam splitter 120B. Furthermore, the third center line S3 and the second center line S2 generally coincide, but they can also be offset.

[0040] like Figure 1A As shown, the fourth light source 110D emits a fourth light L4 with a third wavelength, which is incident on the module 10 along the first optical path direction P1 via the third beam splitter 120C, the first beam splitter 120A, and the second beam splitter 120B. The third wavelength is different from the first and second wavelengths. In an embodiment, the second wavelength is, for example, between 620 nm and 750 nm, and the third wavelength is, for example, between 450 nm and 475 nm. Specifically, the third light L3 is, for example, red light, and the fourth light L4 is, for example, blue light.

[0041] like Figure 1AAs shown, the fourth light source 110D is arranged along the fourth center line S4, for example, the fourth center line S4 passes through the center of the fourth light source 110D. The fourth light L4 emitted by the fourth light source 110D is divided into a seventh part L41 and an eighth part L42 relative to the fourth center line S4. The seventh part L41 is incident on one side of the fourth center line S4 along the first optical path direction P1 to the third beam splitter 120C, and after being reflected by the third beam splitter 120C, it travels along the third optical path direction S3, and then after being reflected by the first beam splitter 120A and transmitted by the second beam splitter 120B, it is incident on the module 10. The eighth part L42 is incident on the other side of the fourth center line S4 along the first optical path direction P1 to the third beam splitter 120C, and after being reflected by the third beam splitter 120C, it travels along the third optical path direction S3, and then after being transmitted by the second beam splitter 120B and reflected by the fourth beam splitter 120D, it is incident on the module 10. In other embodiments, the fourth light source 110D can also be incident on the third beam splitter 120C in the opposite direction to the first optical path direction P1; the third beam splitter 120C is disposed opposite to the third light source 110C and the fourth light source 110D, but with... Figure 1A In contrast, the third beam splitter 120C is flipped relative to the third center line S3, and other details are as described above and will not be repeated here.

[0042] like Figure 1A As shown, the first beam splitter 120A and the fourth beam splitter 120D are arranged opposite the first light source 110A. The first beam splitter 120A and the fourth beam splitter 120D are arranged on opposite sides of the first center line S1, so that the first part L11 and the second part L12 of the first light L1 emitted by the first light source 110A are respectively incident on the fourth beam splitter 120D and the first beam splitter 120A.

[0043] like Figure 1A As shown, the first beam splitter 120A and the fourth beam splitter 120D are configured opposite to the third light source 110C. The first beam splitter 120A and the fourth beam splitter 120D are respectively configured on opposite sides of the third center line S3. The fifth part L31 and the sixth part L32 of the third light L3 are incident on the fourth beam splitter 120D and the first beam splitter 120A respectively, and are reflected by the fourth beam splitter 120D and the first beam splitter 120A to the module 10.

[0044] like Figure 1AAs shown, the first beam splitter 120A and the fourth beam splitter 120D are respectively disposed on opposite sides of the third center line S3. Thus, the seventh part L41 of the fourth beam L4 can be reflected by the part of the third beam splitter 120C located on one side of the third center line S3 to the first beam splitter 120A, and then travel to the module 10 through reflection by the first beam splitter 120A and transmission by the second beam splitter 120B. The eighth part L42 can be reflected by the part of the third beam splitter 120C located on the other side of the third center line S3, and travel to the fourth beam splitter 120D through transmission by the second beam splitter 120B. Then the eighth part L42 can be reflected to the module 10 through the fourth beam splitter 120D.

[0045] like Figure 1A As shown, the third beam splitter 120C is configured relative to the third light source 110C. The third center line S3 passes through the third beam splitter 120C; for example, the third center line S3 passes through the center of the third beam splitter 120C. Thus, the third light L3 emitted by the third light source 110C can completely penetrate the third beam splitter 120C. Furthermore, the third beam splitter 120C is configured relative to the fourth light source 110D. The fourth center line S4 passes through the third beam splitter 120C; for example, the fourth center line S4 passes through the center of the third beam splitter 120C. Thus, the fourth light L4 emitted by the fourth light source 110D can be completely reflected by the third beam splitter 120C to both the first beam splitter 120A and the fourth beam splitter 120D.

[0046] like Figure 1A As shown, the first beam splitter 120A, the second beam splitter 120B, and the third beam splitter 120C can be connected to each other. For example, the first beam splitter 120A and the second beam splitter 120B are the surfaces corresponding to the short side and height of a right-angled trapezoidal prism. These two surfaces can be individually coated or continuously coated. The third beam splitter 120C is the surface corresponding to the hypotenuse of the right-angled trapezoidal prism. However, in another embodiment, any two of the first beam splitter 120A, the second beam splitter 120B, and the third beam splitter 120C can be connected to each other. For example, the first beam splitter 120A and the second beam splitter 120B are the surfaces corresponding to the two right-angled sides of a right-angled triangular prism. In addition, the fourth beam splitter 120D can also be the surface corresponding to one right-angled side of a right-angled triangular prism, assembled with the former to form a beam combining prism group. Alternatively, the first beam splitter 120A, the second beam splitter 120B, and the third beam splitter 120C can be configured separately, for example, each being a surface of an independent prism or plane lens. The combination of the first, second, third, fourth, and fifth beam splitters in the light source modules 200, 300, 400, and 500 in the following embodiments refers to the examples above and will not be repeated hereafter.

[0047] In terms of the configuration of the beam splitter, such asFigure 1A As shown, the angle A1 of the first beam splitter 120A relative to a horizontal reference line is, for example, 45 degrees. Similarly, the angles of the other beam splitters relative to the horizontal reference line are also, for example, 45 degrees.

[0048] The beam-splitter in this article is, for example, a dihedral beam splitter. In terms of beam-splitting characteristics, such as... Figure 1B and Figure 1A As shown, the first beam splitter 120A can reflect a first light L1 and a second light L2 having a first wavelength (e.g., green light band), a third light L3 having a second wavelength (red light band), and a fourth light L4 having a third wavelength (e.g., blue light band). The second beam splitter 120B can reflect the second light L2 having the first wavelength (e.g., green light band), but allows the third light L3 having the second wavelength (e.g., red light band) and the fourth light L4 having the third wavelength (e.g., blue light band) to pass through. The third beam splitter 120C can reflect the fourth light L4 having the third wavelength (e.g., blue light band), but allows the third light L3 having the second wavelength (e.g., red light band) to pass through. The fourth beam splitter 120D can reflect a third light L3 having a second wavelength (e.g., red light band) and a fourth light L4 having a third wavelength (e.g., blue light band), but allows a first light L1 (e.g., the first portion L11) and a second light L2 (e.g., the third portion L21) having a first wavelength (e.g., green light band) to pass through.

[0049] 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.

[0050] 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.

[0051] like Figure 1A As shown, the second condenser lens 130B is configured opposite to the second 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).

[0052] As shown in FIG. 1, the first light source 110A is disposed opposite to the first light collector 130A. The first light source 110A is disposed along a first center line S1, for example, the first center line S1 passes through the center of the first light collector 130A, so that the first portion L11 and the second portion L12 of the first light L1 incident to the first light collector 130A are substantially equal in light amount with respect to the first center line S1. Figure 1A As shown in FIG. 1, the third light collector 130C is disposed opposite to the third light source 110C. The third light collector 130C is disposed along a third center line S3, for example, the third center line S3 passes through the center of the third light collector 130C, so that the fifth portion L31 and the sixth portion L32 of the first light L1 incident to the third light collector 130C are substantially equal in light amount with respect to the third center line S3.

[0053] As shown in FIG. 1, the fourth light collector 130D is disposed opposite to the fourth light source 110D. The fourth light collector 130D is disposed along a fourth center line S4, for example, the fourth center line S4 passes through the center of the fourth light collector 130D, so that the seventh portion L41 and the eighth portion L42 of the first light L1 incident to the fourth light collector 130D are substantially equal in light amount with respect to the fourth center line S4. Figure 2 As shown in FIG. 1, the fourth light collector 130D is disposed opposite to the fourth light source 110D. The fourth light collector 130D is disposed along a fourth center line S4, for example, the fourth center line S4 passes through the center of the fourth light collector 130D, so that the seventh portion L41 and the eighth portion L42 of the first light L1 incident to the fourth light collector 130D are substantially equal in light amount with respect to the fourth center line S4.

[0054] Figure 2 As shown in FIG. 1, the fourth light collector 130D is disposed opposite to the fourth light source 110D. The fourth light collector 130D is disposed along a fourth center line S4, for example, the fourth center line S4 passes through the center of the fourth light collector 130D, so that the seventh portion L41 and the eighth portion L42 of the first light L1 incident to the fourth light collector 130D are substantially equal in light amount with respect to the fourth center line S4.

[0055] As shown in FIG. 1, the fourth light collector 130D is disposed opposite to the fourth light source 110D. The fourth light collector 130D is disposed along a fourth center line S4, for example, the fourth center line S4 passes through the center of the fourth light collector 130D, so that the seventh portion L41 and the eighth portion L42 of the first light L1 incident to the fourth light collector 130D are substantially equal in light amount with respect to the fourth center line S4. Figure 2 As shown in FIG. 1, the fourth light collector 130D is disposed opposite to the fourth light source 110D. The fourth light collector 130D is disposed along a fourth center line S4, for example, the fourth center line S4 passes through the center of the fourth light collector 130D, so that the seventh portion L41 and the eighth portion L42 of the first light L1 incident to the fourth light collector 130D are substantially equal in light amount with respect to the fourth center line S4.

[0056] ​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.

[0057] like Figure 2 As 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 220B, and reflected by the second beam splitter 220B and the fourth beam splitter 120D 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.

[0058] 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 better object-image matching. Moreover, since the light rays (spots) returning to the second light source 110B from the second reflector 240B will not be misaligned with the second light source 110B, the light rays (spots) returning to the second light source 110B from the second reflector 240B can be completely reflected by the second reflective layer 110B1 of the second light source 110B, preventing any light leakage.

[0059] like Figure 2 As shown, the first light source 110A is arranged along the first center line S1. The first beam splitter 220A 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 can be incident on the first beam splitter 220A and the first reflector 240A, respectively. Similarly, the second light source 110B is arranged along the second center line S2. The second beam splitter 220B and the second reflector 240B are respectively arranged on opposite sides of the second 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 220B and the second reflector 240B, respectively.

[0060] like Figure 2As shown, the first reflective member 240A is located out of the light path of the first portion L11 of the first light L1 (i.e., the first reflective member 240A is not located in the light path of the first portion L11), which can avoid blocking the travel of the first portion L11 or reduce the amount of blocked light of the first portion L11. Similarly, the second reflective member 240B is located out of the light path of the third portion L21 of the second light L2 (i.e., the second reflective member 240B is not located in the light 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 blocked light of the third portion L21.

[0061] In terms of light splitting characteristics, as shown in FIG. 2A, the first light splitting member 220A can reflect the third light L3 having a second wavelength (e.g., a red light band) and the fourth light L4 having a third wavelength (e.g., a blue light band), but allow the first light L1 having a first wavelength (e.g., a green light band) to penetrate. The second light splitting member 220B can reflect the second light L2 having the first wavelength (e.g., a green light band), and the second light splitting member 220B can also reflect light rays of a full visible spectrum (in other words, can be a mirror). The third light splitting member 220C can reflect the fourth light L4 having the third wavelength (e.g., a blue light band), but allow the third light L3 having the second wavelength (e.g., a red light band) to penetrate. The fourth light splitting member 220D can reflect the third light L3 having the second wavelength (e.g., a red light band) and the fourth light L4 having the third wavelength (e.g., a blue light band), but allow the second light L2 having the first wavelength (e.g., a green light band) to penetrate. Figure 3A Please refer to FIG. 3A and FIG. 3B, which show the light path schematic diagrams 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 110D, a first light splitting member 320A, a second light splitting member 320B, a third light splitting member 320C, a fourth light splitting member 320D, and at least one condenser (e.g., a first condenser 130A, a second condenser 130B, a third condenser 130C, a fourth condenser 130D).

[0062] Figure 3B As shown in FIG. 3A, the first light splitting member 320A can reflect the third light L3 having a second wavelength (e.g., a red light band) and the fourth light L4 having a third wavelength (e.g., a blue light band), but allow the first light L1 having a first wavelength (e.g., a green light band) to penetrate. The second light splitting member 320B can reflect the second light L2 having the first wavelength (e.g., a green light band), and the second light splitting member 320B can also reflect light rays of a full visible spectrum (in other words, can be a mirror). The third light splitting member 320C can reflect the fourth light L4 having the third wavelength (e.g., a blue light band), but allow the third light L3 having the second wavelength (e.g., a red light band) to penetrate. The fourth light splitting member 320D can reflect the third light L3 having the second wavelength (e.g., a red light band) and the fourth light L4 having the third wavelength (e.g., a blue light band), but allow the second light L2 having the first wavelength (e.g., a green light band) to penetrate. Figure 3A As shown in FIG. 3B, the first light splitting member 320A can reflect the third light L3 having a second wavelength (e.g., a red light band) and the fourth light L4 having a third wavelength (e.g., a blue light band), but allow the first light L1 having a first wavelength (e.g., a green light band) to penetrate. The second light splitting member 320B can reflect the second light L2 having the first wavelength (e.g., a green light band), and the second light splitting member 320B can also reflect light rays of a full visible spectrum (in other words, can be a mirror). The third light splitting member 320C can reflect the fourth light L4 having the third wavelength (e.g., a blue light band), but allow the third light L3 having the second wavelength (e.g., a red light band) to penetrate. The fourth light splitting member 320D can reflect the third light L3 having the second wavelength (e.g., a red light band) and the fourth light L4 having the third wavelength (e.g., a blue light band), but allow the second light L2 having the first wavelength (e.g., a green light band) to penetrate.

[0063] Figure 3B ​​As shown, the first light source 110A is arranged along the first center line S1, which passes through the center of the first beam splitter 320A. The first light L1 emitted by the first light source 110A is split into a first part L11 and a second part L12 relative to the first center line S1. The first part L11 is incident on one side of the first center line S1 along the first optical path direction P1 onto the first beam splitter 320A, and then incident on the module 10 via the first beam splitter 320A and the third beam splitter 320C. The second part L12 is incident on the other side of the first center line S1 along the first optical path direction P1 onto the first beam splitter 320A, and then incident on the second light source 110B via the first beam splitter 320A and the fourth beam splitter 320D. It is then 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 (as shown in the diagram). Figure 3B Similar to or the same as shown, it will not be elaborated further here.

[0064] like Figure 3A As shown, the second light source 110B is arranged along the second center line S2, which passes through the center of the second light source 110B. 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 second center line S2. The third part L21 is incident on one side of the second center line S2 along the second optical path direction P2 to the second beam splitter 320B, and then incident on the module 10 via the second beam splitter 320B and the fourth beam splitter 320D. The fourth part L22 is incident on the other side of the second center line S2 along the second optical path direction P2 to the first beam splitter 320A, and then incident on the first light source 110A via the first beam splitter 320A, and then 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 the same as the optical path of the first light L1 of the first light source 110A (e.g., ...). Figure 3A Similar to or the same as shown, it will not be elaborated further here.

[0065] like Figure 3A As shown, the fourth light source 110D emits a fourth light L4 which is incident on the third beam splitter 320C and the second beam splitter 320B along the fourth light path direction P4, wherein the fourth light path direction P4 is opposite to the first light path direction P1.

[0066] like Figure 3BAs shown, the first beam splitter 320A is configured relative to the first light source 110A. A first center line S1 passes through the first beam splitter 320A; for example, the first center line S1 passes through the center of the first beam splitter 320A. Thus, the first light L1 can be incident entirely onto the first beam splitter 320A. Similarly, the first beam splitter 320A is configured relative to the third light source 110C. A third center line S3 passes through the first beam splitter 320A; for example, the third center line S3 passes through the center of the first beam splitter 320A. Thus, the third light L3 can be incident entirely onto the first beam splitter 320A.

[0067] like Figure 1A As shown, the second beam splitter 320B and the fourth beam splitter 320D are respectively disposed on opposite sides of the second center line S2. Thus, the third portion L21 and the fourth portion L22 of the second light L2 can be incident on the second beam splitter 320B and the fourth beam splitter 320D, respectively. Furthermore, the second beam splitter 320B and the third beam splitter 320C are respectively disposed on opposite sides of the fourth center line S4. Thus, the seventh portion L41 and the eighth portion L42 of the fourth light L4 can be incident on the third beam splitter 320C and the second beam splitter 320B, respectively. Additionally, the third beam splitter 320C and the fourth beam splitter 320D are respectively disposed on opposite sides of the third center line S3. Thus, the fifth portion L31 and the sixth portion L32 of the third light L3 can pass through the fourth beam splitter 320D and the third beam splitter 320C and be incident on the module 10, respectively. In addition, the traveling optical paths of the third beam L3 and its fifth part L31 and sixth part L32 are... Figure 1B and Figure 3A The implementation methods are the same and will not be described again here.

[0068] In terms of spectral characteristics, such as Figure 4 As shown, the first beam splitter 320A can reflect a first light L1 and a second light L2 having a first wavelength (e.g., green light band), but allows a third light L3 having a second wavelength (e.g., red light band) to pass through. The second beam splitter 320B can reflect the second light L2 having a first wavelength (e.g., green light band), but allows a fourth light L4 having a third wavelength (e.g., blue light band) to pass through. The third beam splitter 320C can reflect the third light L3 having a second wavelength (e.g., red light band) and the first light L1 having a first wavelength (green light band), but allows the fourth light L4 having a third wavelength (e.g., blue light band) to pass through. The fourth beam splitter 320D can reflect the third light L3 having a second wavelength (e.g., red light band), but allows the second light L2 having a first wavelength (e.g., green light band) and the fourth light L4 having a third wavelength (blue light band) to pass through.

[0069] Please refer to Figure 3AFig. 4 shows a light path diagram of a light source module 400 according to another embodiment of the present application. The light source module 400 includes a first light source 110A, a second light source 110B, a third light source 110C, 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, a fourth light splitting member 420D, a fifth light splitting member 420E, and at least one light collector (e.g., a first light collector 130A, a second light collector 130B, a third light collector 130C, a fourth light collector 130D, a fifth light collector 430E). Although not shown, the light path of the light source module 400 in operation can also include the light path of the first light LI emitted by the first light source 110A and / or the light path of the second light L2 emitted by the second light source 110B.

[0070] The light source module 400 has similar or identical features as the light source module 300, except that the light source module 400 further includes a fifth light source 410E, a fifth light splitting member 420E, and a fifth light collector 430E.

[0071] The fifth light source 410E can emit a fifth light L5 having a third wavelength that passes through the first light splitting member 420A to the first light source 110A and passes through the fifth light splitting member 420E to the second light source 110B. In this embodiment, the fifth light L5 and the fourth light L4 are, for example, blue light, and the third light L3 is, for example, red light.

[0072] The fifth light source 410E is disposed along a fifth center line S5, for example, the fifth center line S5 passes through the center of the fifth light source 410E. The fifth light L5 is divided into a ninth portion L51 and a tenth portion L52 with respect to the fifth center line S5. The ninth portion L51 sequentially passes through the fifth light collector 430E, the first light splitting member 420A, and the first light collector 130A to the first light source 110A. After the ninth portion L51 is converted by the first wavelength conversion layer 110A3 of the first light source 110A into converted light L51a having a first wavelength, a portion of the converted light L51a is reflected by the first reflective layer 110A1 to the first light collector 130A, and another portion of the converted light L51a is emitted by the fluorescent particles 110A4 to the first light collector 130A. In addition, the ninth portion L51 that is not converted by the fluorescent particles 110A4 can be reflected back to the first wavelength conversion layer 110A3 by the first reflective layer 110A1 to increase the probability of conversion of the wavelength of light by the fluorescent particles 110A4. The light path of the converted light L51a provided by the first light source 110A is the same as the light path of the first light LI emitted by the first light source 110A (the first light LI is shown in Fig. 1). Figure 1B) similar or identical, and will not be repeated here. Similarly, after the tenth 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 emitted from the fluorescent particles 110B4 to the second condenser lens 130B. In addition, the tenth 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, which can increase the probability of conversion of the wavelength of light by the fluorescent particles 110B4. The optical path of the converted light L52a provided by the second light source 110B is similar to or identical to the optical path of the second light L2 emitted by the second light source 110B (the second light L2 is not shown in FIG. 4B for clarity). Figure 4 ) similar or identical, and will not be repeated here.

[0073] In summary, although the fifth light L5 emitted by the fifth light source 410E has a wavelength 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, which increases the amount of light having the first wavelength provided by the light source module 400 to the module 10.

[0074] In another embodiment, Figure 4 The first light source 110A can not emit the first light L1 and / or the second light source 110B can not emit the second light L2. In detail, the first light source 110A can provide converted light L51a having the first wavelength (as if emitting converted light L51a) by the first wavelength conversion layer 110A3 and the first reflective layer 110A1 and / or the second light source 11B can provide converted light L52a having the first wavelength (as if emitting converted light L52a) by the second wavelength conversion layer 110B3 and the second reflective layer 110B1. 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, and the second light source 110B includes the second wavelength conversion layer 110B3 disposed on the second reflective layer 110B1.

[0075] In terms of spectral characteristics, as shown in FIG. 4A, the first light splitting member 420A is configured to reflect the first light L1 and the second light L2 (not shown in FIG. 4A) having the first wavelength (e.g., the green light band), but to allow the third light L3 having the second wavelength (e.g., the red light band) and the fifth light L5 having the third wavelength (e.g., the blue light band) to pass through. The second light splitting member 420B is configured to reflect the second light L2 (not shown in FIG. 4A) having the first wavelength (e.g., the green light band), but to allow the third light L3 having the second wavelength (e.g., the red light band) and the fifth light L5 having the third wavelength (e.g., the blue light band) to pass through. Figure 4 Figure 4 Figure 4 ​​), but allows the fourth light L4 having the third wavelength (e.g., the blue light band) to penetrate. The third light splitting member 420C is configured to reflect the third light L3 having the second wavelength (e.g., the red light band) and the light having the first wavelength (e.g., the green light band), but allows the fourth light L4 having the third wavelength (e.g., the blue light band) to penetrate. The fourth light splitting member 420D is configured to reflect the third light L3 having the second wavelength (e.g., the red light band), but allows the fourth light L4 having the third wavelength (e.g., the blue light band) to penetrate and allows the second light L2 (not shown in Figure 5 ) having the first wavelength (e.g., the green light band) to penetrate. The fifth light splitting member 420E can reflect the fifth light L5 having the third wavelength (e.g., the blue light band), but allows the third light L3 having the second wavelength (e.g., the red light band) and the fifth light L5 having the third wavelength (e.g., the blue light band) to penetrate.

[0076] In addition, the fifth condenser lens 430E is disposed opposite to the fifth light source 410E. The fifth condenser lens 430E is disposed along a fifth center line S5, e.g., the fifth center line S5 passes through the center of the fifth condenser lens 430E, so that the ninth portion L51 and the tenth portion L52 incident to the fifth condenser lens 430E are substantially equal light amount with respect to the fifth center line S5.

[0077] Please refer to ​ , which 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 110C, a fourth light source 110D, a first light splitting member 220A, a second light splitting member 220B, a third light splitting member 120C, a fourth light splitting member 120D, 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 first reflecting member 240A, and a second reflecting member 240B.

[0078] The light source module 500 has the same or similar technical features as the aforementioned light source module 200, except that the light source module 500 includes a relay lens 550. The relay lens 550 can make the module pass through a longer path, and also can obtain better efficiency. In other embodiments, the aforementioned light source module 100 can also include a relay lens, e.g., between the third light splitting member 120C and the first light splitting member 120A. In other embodiments, the aforementioned light source module 300 can also include a relay lens, e.g., between the first light splitting member 320A and the third light splitting member 320C. In other embodiments, the aforementioned light source module 400 can also include a relay lens, e.g., between the first light splitting member 420A and the third light splitting member 420C.

[0079] 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 arranged adjacently and / or have optical axes substantially perpendicular to each other. 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 adjacently 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 scatters and / or reflects the light (for example, without a light-emitting layer).

[0080] The present application has been described by the above-mentioned related embodiments, however, the above-mentioned embodiments are only examples for 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 fourth light splitting member; a first light source configured along a first center line to emit a first light having a first wavelength, the first light splitting member being disposed on one side of the first center line, the first light traveling along a first light path direction to the first light splitting member; a second light source configured along a second center line to emit a second light having the first wavelength, the first light splitting member being disposed on one side of the second center line, the second light traveling along a second light path direction to the first light splitting member, the first light path direction being substantially perpendicular to the second light path direction; and a third light source configured along a third center line to emit a third light having a second wavelength, the first light splitting member and the second light splitting member being disposed on opposite sides of the third center line, respectively, the third light traveling along a third light path direction to the first light splitting member and the second light splitting member, respectively, wherein the third light path direction is opposite to the second light path direction, and the second wavelength is different from the first wavelength; wherein the fourth light splitting member is disposed between the third light source and the second light source, and the fourth light splitting member and the first light splitting member are disposed on opposite sides of the first center line, respectively, the fourth light splitting member being configured to allow the first light having the first wavelength to pass through; the first light splitting member and the fourth light splitting member are disposed on opposite sides of the third center line, respectively, the first light splitting member and the fourth light splitting member being further configured to reflect the third light having the second wavelength, respectively. 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 splitting member is configured to reflect the first light and the second light having the first wavelength. The second light splitting member is configured to reflect the first light and the second light having the first wavelength, and to allow the third light having the second wavelength to pass through.

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. Further comprising: a fourth light source configured to emit a fourth light having a third wavelength; a third light splitting member disposed opposite to the third light source and the fourth light source; the third light is incident to the third light splitting member along the third light path direction, the fourth light is incident to the third light splitting member along the first light path direction or a direction opposite to the first light path direction, the third light and the fourth light travel along the third light path direction to the first light splitting member and the second light splitting member, respectively.

4. The light source module of claim 3, 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 disposed along a fourth center line, the fourth center line passing through a center of the third light splitting member.

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. Further comprising: at least one condenser disposed opposite to at least one of the first light source, the second light source, and the third light source.

6. 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 reflector disposed opposite to the first light source and configured to reflect the first light having the first wavelength; and a second reflector disposed opposite to the second light source and configured to reflect the second light having the first wavelength. The first light splitting member is configured to allow the first light having the first wavelength to pass through, and to reflect the third light having the second wavelength.

7. The light source module of claim 6, 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 first reflector are disposed on opposite sides of the first center line, respectively.

8. The light source module of claim 6, wherein the light source module is configured to be mounted on a printed circuit board (PCB) of a display device. ​ 9. The light source module of claim 6, wherein the light source module is configured to be mounted on a printed circuit board (PCB) of a display device. The second light splitting member and the second reflecting member are respectively arranged on opposite sides of the second center line.

10. A light source module, characterized by The light source module comprises: a first light splitting member; a second light splitting member; a third light splitting member; a fourth light splitting member; a first light source arranged along a first center line for emitting first light having a first wavelength, the first center line passing through a center of the first light splitting member, the first light traveling to the first light splitting member along a first light path direction; a second light source arranged along a second center line for emitting second light having the first wavelength, the second light splitting member arranged on one side of the second center line, the second light traveling to the second light splitting member and the first light splitting member along a second light path direction respectively, the first light path direction being substantially perpendicular to the second light path direction; a third light source arranged along a third center line for emitting third light having a second wavelength, the third light splitting member and the fourth light splitting member being respectively arranged on opposite sides of the third center line, the third light traveling to the third light splitting member and the fourth light splitting member along a third light path direction respectively, the third light splitting member and the fourth light splitting member being respectively used for reflecting the third light having the second wavelength, wherein the third light path direction is opposite to the second light path direction, and the second wavelength is different from the first wavelength; wherein the fourth light splitting member and the second light splitting member are respectively arranged on opposite sides of the second center line, the fourth light splitting member is further used for allowing the first light and the second light having the first wavelength to penetrate; wherein the first light source comprises a first reflecting layer, and the second light source comprises a second reflecting layer, the first reflecting layer and the second reflecting layer being used for reflecting light having the first wavelength. The light source module further comprises:

11. The light source module of claim 10, wherein the light source module is configured to be mounted on a printed circuit board (PCB) of a display device. a fourth light source for emitting fourth light having a third wavelength, wherein the third light splitting member and the fourth light splitting member are further used for allowing the fourth light having the third wavelength to penetrate; wherein the fourth light source is arranged along a fourth center line, and the second light splitting member and the third light splitting member are respectively arranged on opposite sides of the fourth center line. The first light splitting member is used for allowing light having the third wavelength to penetrate, and the light source module further comprises:

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. a fifth light splitting member for reflecting light having the third wavelength; and a fifth light source for emitting fifth light having the third wavelength, a first part of the fifth light traveling to the first light source via the first light splitting member, and a second part of the fifth light traveling to the second light source via the fifth light splitting member; 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. The fifth light splitting member is arranged on one side of the second 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 light source, the second light source and the third light source are respectively arranged along a first center line, a second center line and a third center line, and the second center line and the third center line are substantially coincident, and the first center line is substantially perpendicular to the second center line and the third center line.

14. The light source module of claim 1 or 10, wherein the light source module is configured to be mounted on a printed circuit board (PCB) of a display device. ​

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