Light source assembly and backlight module

Abstract

The application discloses a light source assembly and a backlight module, and relates to the technical field of display. The light source assembly comprises a support structure and at least four light emitting components. The support structure is formed with at least four accommodating grooves arranged at intervals and a light emitting surface formed on one side of the accommodating grooves. The at least four light emitting components are arranged corresponding to the at least four accommodating grooves and comprise a first light emitting component, a second light emitting component, a third light emitting component and a fourth light emitting component. Light emitted by at least three light emitting components can be mixed to form white light on one side of the light emitting surface, and at least one light emitting component can emit white light on one side of the light emitting surface. The application places each light emitting component in a plurality of accommodating grooves arranged at intervals, so that each light emitting component independently emits light and dissipates heat, and a light emitting component emitting white light in a full spectrum fills the peak and valley between narrow-band primary color spectra, thereby suppressing color deviation and reducing light leakage and color cast, giving consideration to high color gamut and high color rendering, and improving the stability of display quality.

Description

Technical Field

[0001] This invention relates to the field of display technology, and in particular to a light source assembly and a backlight module. Background Technology

[0002] With the continuous evolution of LCD technology, LED backlighting has become a key element in achieving high-quality display in LCD TVs. To meet consumers' demands for a wider color gamut, more realistic color reproduction, and a healthier spectrum, the industry has gradually developed the RGBW LED backlighting solution. This solution adds a white (W) light-emitting unit to the traditional RGB (red, green, and blue) three-color LED chips. The RGB chips provide high-purity, narrow-band primary color light to achieve wide color gamut coverage, while the white light unit supplements the missing bands between the RGB peaks in the visible light spectrum. This improves spectral continuity and color rendering performance while maintaining a high color gamut, making the colors in the picture more closely resemble the true performance under natural lighting, while also ensuring vivid and saturated colors.

[0003] In existing technologies, the packaging structure of RGBW LED chips typically adopts a dual-cup design, which means that two cups (reflective cavities) are set inside the chip package. One cup contains three chips: red (R), green (G), and blue (B), while the other cup contains a white (W) chip.

[0004] However, the above structure is prone to color shift problems of varying degrees during long-term use of RGBW LED beads, making it difficult to maintain stable color accuracy and high standard of display quality. Summary of the Invention

[0005] The main objective of this invention is to propose a light source component and a backlight module, which aims to solve the problems of heat accumulation, color deviation, and crosstalk caused by the mutual influence of chips in existing RGBW LED lamp beads, so that the light source can have high color rendering and continuous stable display quality while taking into account a high color gamut.

[0006] To achieve the above objectives, the present invention provides a light source assembly comprising: A support structure having at least four spaced-apart receiving slots, the support structure forming a light-emitting surface on one side of the slot opening; and, At least four light-emitting components are provided, and the at least four light-emitting components are arranged corresponding to at least four receiving slots. The at least four light-emitting components include a first light-emitting component, a second light-emitting component, a third light-emitting component, and a fourth light-emitting component. Among them, the light emitted by at least three of the light-emitting components can be mixed on one side of the light-emitting surface to form white light, and at least one of the light-emitting components can emit white light on one side of the light-emitting surface.

[0007] In one embodiment, the first light-emitting component includes a first light-emitting chip and a first light conversion unit. The light emitted by the first light-emitting chip is converted into red light and emitted on one side of the light-emitting surface after passing through the first light conversion unit.

[0008] In one embodiment, the first light-emitting chip is a first blue light-emitting chip and / or a first violet light-emitting chip; and / or, The first light conversion section contains red phosphor and / or red quantum dot powder.

[0009] In one embodiment, the second light-emitting component includes a second light-emitting chip and a second light conversion unit. The light emitted by the second light-emitting chip is converted into green light by the second light conversion unit and emitted on one side of the light-emitting surface.

[0010] In one embodiment, the second light-emitting chip is a second blue light-emitting chip and / or a second violet light-emitting chip; and / or, The second light conversion section contains green phosphor and / or green quantum dot powder.

[0011] In one embodiment, the first light-emitting component is a red light-emitting wafer; and / or, The second light-emitting component uses a green light-emitting wafer; and / or, The third light-emitting component employs a third blue light-emitting chip; and / or, The fourth light-emitting component uses a cyan light-emitting wafer.

[0012] In one embodiment, the fourth light-emitting component includes a third light-emitting chip and a full-spectrum phosphor. The light emitted by the third light-emitting chip is converted into white light and emitted from one side of the light-emitting surface after passing through the full-spectrum phosphor.

[0013] In one embodiment, the full-spectrum phosphor includes cyan phosphor, yellow-green phosphor, and red phosphor; and / or, The third light-emitting chip is either a fourth blue light chip or a third violet light chip.

[0014] In one embodiment, the wavelength of the light excited by the cyan phosphor is between 470 nm and 510 nm; and / or, The wavelength of the light excited by the yellow-green phosphor is between 540 nm and 580 nm; and / or, The wavelength of the light excited by the red phosphor is between 640 nm and 670 nm.

[0015] In one embodiment, the light source assembly further includes pads, and each of the receiving slots is provided with a corresponding pad. The pads include a first pad and a second pad, and both the first pad and the second pad are at least partially located in the corresponding receiving slot. Each light-emitting component is disposed on the corresponding first pad, and the light-emitting component is electrically connected to the first pad and the second pad, respectively.

[0016] In one embodiment, the light source assembly further includes a controller, which is electrically connected to the first light-emitting component, the second light-emitting component, the third light-emitting component, and the fourth light-emitting component, and can individually control the first light-emitting component, the second light-emitting component, the third light-emitting component, and the fourth light-emitting component to emit light.

[0017] The present invention also proposes a backlight module, including the above-mentioned light source component.

[0018] In the technical solution provided by the present invention, by forming at least four spaced-apart receiving slots in the support structure and placing at least four light-emitting components in each of the receiving slots, each light-emitting component independently occupies a receiving slot space. As a result, the light emitted by each light-emitting component is independent and does not cross-contaminate in color. Moreover, the heat generated by each light-emitting component is separated by the spaced-apart receiving slots, avoiding the heat accumulation effect caused by the concentrated die bonding of multiple chips. This suppresses the color shift phenomenon caused by inconsistent heat and light decay, and significantly improves the color accuracy stability and reliability of the light source during long-term use. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the structure of an embodiment of the light source assembly provided by the present invention; Figure 2 for Figure 1 A partial cross-sectional view of one embodiment of the provided light source assembly; Figure 3 for Figure 1 Another partial cross-sectional view of one embodiment of the provided light source assembly.

[0021] 100. Light source assembly; 1. Support structure; 11. Receiving groove; 2. Light-emitting component; 21. First light-emitting component; 211. First light-emitting chip; 212. First light conversion unit; 22. Second light-emitting component; 221. Second light-emitting chip; 222. Second light conversion unit; 23. Third light-emitting component; 24. Fourth light-emitting component; 241. Third light-emitting chip; 242. Full-spectrum phosphor; 3. Pad; 31. First pad; 32. Second pad; 4. Gold wire.

[0022] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0024] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0025] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0026] Existing RGBW LED chips typically employ a dual-cup packaging structure, placing the red, green, and blue chips in one cup and the white chip in another, with all chips bonded to the same heat sink. During long-term use, this structure suffers from heat accumulation due to the concentration of heat from multiple chips. Furthermore, differences in materials, current, and voltage characteristics among different chips within the same cup lead to inconsistent light decay, resulting in varying degrees of color shift. Additionally, crosstalk and color mixing between different chips further reduce luminous efficacy, limit contrast improvement, and increase power consumption, making it difficult to consistently maintain high-quality display performance.

[0027] To address the aforementioned technical problems, the present invention provides a light source assembly.

[0028] Please see Figure 1 The light source assembly 100 provided in this embodiment of the invention includes a support structure 1 and at least four light-emitting components 2. The support structure 1 has at least four spaced-apart receiving slots 11, and a light-emitting surface is formed on one side of the opening of each slot 11. The at least four light-emitting components 2 are disposed corresponding to the at least four receiving slots 11, meaning each light-emitting component 2 is installed in one receiving slot 11. The at least four light-emitting components 2 include a first light-emitting component 21, a second light-emitting component 22, a third light-emitting component 23, and a fourth light-emitting component 24. The light emitted by at least three of the light-emitting components 2 can mix on one side of the light-emitting surface to form white light, and at least one light-emitting component 2 can emit white light on one side of the light-emitting surface.

[0029] In the technical solution provided by this invention, at least four spaced-apart receiving slots 11 are formed on the support structure 1, and at least four light-emitting components 2 are placed one-to-one in each receiving slot 11, so that each light-emitting component 2 independently occupies the space of a receiving slot 11. This ensures that the light emitted by each light-emitting component 2 is independent and does not interfere with each other before reaching the light-emitting surface, fundamentally avoiding cross-light and color mixing caused by multiple chips in the same cup, thus improving luminous efficiency and contrast. Furthermore, the heat generated by each light-emitting component 2 is separated by the spaced-apart receiving slots 11, avoiding the heat accumulation effect when multiple chips are concentrated for die bonding, ensuring that the heat generated by any one light-emitting component 2 does not significantly affect adjacent light-emitting components 2, thereby suppressing color shift caused by inconsistent heat and light decay, and significantly improving the reliability and color accuracy stability of the LED. At the same time, at least three light-emitting components 2 mix light on one side of the light-emitting surface to form white light, giving the light source the high color gamut characteristics of direct synthesis of narrow-band primary color light; at least one light-emitting component 2 directly emits white light to fill the peaks and valleys between the peaks of the narrow-band primary color spectrum, so that the overall output spectrum is smooth and continuous, taking into account both high color gamut and high color rendering.

[0030] For example, the support structure 1 can be a one-piece injection-molded plastic support with at least four independent cup-shaped receiving grooves 11 recessed on its upper surface; for example, the support structure 1 can also be a ceramic substrate support, with the receiving grooves 11 formed by setting mutually spaced cavities on the ceramic substrate; for example, the support structure 1 can also be a metal substrate with a reflective cup structure, with at least four reflective cups arranged at intervals on the metal substrate to form the receiving grooves 11. The inner wall of each receiving groove 11 can be configured as a reflective wall that gradually expands towards the light-emitting surface, so as to converge and guide the light emitted by the light-emitting component 2 to the light-emitting surface side, thereby improving the light emission efficiency. It should be noted that the number of receiving grooves 11 is not limited to four, in cases where more primary color light or redundant design is used.

[0031] Furthermore, the light-emitting component 2 can be implemented in various ways. In one embodiment of the present invention, please refer to... Figure 2 and Figure 3 The first light-emitting component 21 includes a first light-emitting chip 211 and a first light conversion unit 212. The light emitted by the first light-emitting chip 211 is converted into red light after passing through the first light conversion unit 212 and emitted on one side of the light-emitting surface. In this way, the red light is obtained by exciting the light conversion unit with a short-wavelength chip, so that the center wavelength and spectral width of the red primary color light can be precisely controlled by the material formula of the light conversion unit, thereby obtaining a narrow-band red primary color light with higher purity and better consistency, which is beneficial for expanding the color gamut and improving the color consistency of mass production.

[0032] Furthermore, the first light-emitting chip 211 may employ a first blue light-emitting chip and / or a first violet light-emitting chip; and / or, the first light conversion section 212 may contain red phosphor and / or red quantum dot powder. That is, the excitation chip can flexibly employ either a blue light-emitting chip or a violet light-emitting chip, and the light conversion section can flexibly employ either phosphor or quantum dot material. For example, the first light conversion section 212 may be formed by filling and curing silicone containing dispersed red phosphor within a receiving tank 11; for example, the first light conversion section 212 may also be implemented using a red quantum dot film coated on the first light-emitting chip 211; for example, the first light conversion section 212 may also be implemented using an encapsulating adhesive mixed with red quantum dot powder or red quantum crystals.

[0033] Furthermore, in one embodiment of the present invention, the second light-emitting component 22 includes a second light-emitting chip 221 and a second light conversion unit 222. The light emitted from the second light-emitting chip 221 is converted into green light by the second light conversion unit 222 and emitted on one side of the light-emitting surface. Thus, the center wavelength and spectral width of the green primary color light can also be precisely controlled by the material formulation of the light conversion unit to obtain high-purity narrow-band green primary color light, which, in combination with the aforementioned red primary color light, further enhances the color gamut coverage and color consistency of the light source.

[0034] Furthermore, the second light-emitting chip 221 may employ a second blue light-emitting chip and / or a second violet light-emitting chip; and / or, the second light conversion section 222 may contain green phosphor and / or green quantum dot powder. Exemplarily, the second light conversion section 222 may be formed by filling and curing silicone containing dispersed green phosphor within a receiving groove 11; exemplarily, the second light conversion section 222 may also be implemented using a green quantum dot film coated on the second light-emitting chip 221; exemplarily, the second light conversion section 222 may also be implemented using an encapsulating adhesive mixed with green quantum dot powder or green quantum crystals. Thus, the implementation of the second light-emitting component 22 is also flexible and diverse, and can be coordinated with the implementation of the first light-emitting component 21, facilitating the unification and optimization of the overall packaging process.

[0035] In another embodiment of the present invention, each light-emitting component 2 may also be implemented using a direct-emitting chip without light conversion. Specifically, the first light-emitting component 21 uses a red light-emitting chip; and / or, the second light-emitting component 22 uses a green light-emitting chip; and / or, the third light-emitting component 23 uses a third blue light-emitting chip; and / or, the fourth light-emitting component 24 uses a cyan light-emitting chip. In other words, in this embodiment, the light source assembly 100 may use four direct-emitting chips (red, green, blue, and cyan) placed in four receiving slots 11, wherein the red, green, and blue light are mixed on one side of the light-emitting surface to form white light, and the cyan chip is used to supplement the cyan band between blue and green (its corresponding wavelength is about 490nm), thereby filling the band gap between narrowband primary colors and making the output spectrum more continuous. This embodiment directly uses narrowband chips for light emission, without the need for a light conversion process, resulting in small light efficiency loss and fast response speed.

[0036] In another embodiment of the present invention, the fourth light-emitting component 24 includes a third light-emitting chip 241 and a full-spectrum phosphor 242. The light emitted by the third light-emitting chip 241 is converted into white light after passing through the full-spectrum phosphor 242 and emitted on one side of the light-emitting surface. That is, the fourth light-emitting component 24 occupies a receiving slot 11 and directly outputs a continuous and smooth white light spectrum to fill the peak and valley bands between the narrow-band primary color light provided by the other light-emitting components 2.

[0037] Furthermore, the full-spectrum phosphor 242 includes cyan phosphor, yellow-green phosphor, and red phosphor; and / or, the third light-emitting chip 241 adopts a fourth blue light-emitting chip or a third violet light-emitting chip. That is, through the compounding of cyan phosphor, yellow-green phosphor, and red phosphor, the fourth light-emitting component 24, after being excited by the blue light-emitting chip or the violet light-emitting chip, can simultaneously emit in the cyan band, yellow-green band, and red band, thereby covering the transition band between the narrow bands of blue, green, and red primary color light peaks, forming continuous full-spectrum white light. For example, the full-spectrum phosphor 242 can be formed by mixing and dispersing cyan phosphor, yellow-green phosphor and red phosphor in a certain mass ratio in an encapsulating adhesive and filling it in the receiving groove 11 where the fourth light-emitting component 24 is located and then curing it. For example, the full-spectrum phosphor 242 can also be realized by a multi-layer structure in which cyan phosphor, yellow-green phosphor and red phosphor are layered and coated. For example, the full-spectrum phosphor 242 can also be realized by a combination of some phosphor and some quantum dot materials to balance spectral continuity and color purity.

[0038] Furthermore, the wavelength of light excited by cyan phosphor is between 470nm and 510nm; and / or, the wavelength of light excited by yellow-green phosphor is between 540nm and 580nm; and / or, the wavelength of light excited by red phosphor is between 640nm and 670nm. Thus, the cyan band excited by cyan phosphor precisely fills the valley between the peaks of blue and green light, the yellow-green band excited by yellow-green phosphor precisely fills the valley between the peaks of green and red light, and the deep red band excited by red phosphor supplements the energy of the long-wavelength side of red light. This allows the overall spectrum to smoothly extend and continuously cover the visible light range from deep red to blue-violet, achieving a high color rendering index (Ra) of 95. Meanwhile, since the fourth light-emitting component 24 provides a continuous white light substrate, the other light-emitting components 2 can be paired with a narrowband RGB spectrum chip to provide high-purity primary color light, thereby achieving a color gamut coverage of more than 95%, taking into account both high color gamut and high color rendering, and overcoming the defects of "vibrant but not true" and spectral breaks in traditional solutions.

[0039] In one specific embodiment, the wavelength of light excited by cyan phosphor can be 470nm, 500nm or 510nm, the wavelength of light excited by yellow-green phosphor can be 540nm, 560nm or 580nm, and the wavelength of light excited by red phosphor can be 640nm, 650nm or 670nm.

[0040] It should be noted that the combination of the light-emitting components 2 within the four receiving slots 11 of the present invention is not limited to the above-described scheme of blue light chip exciting full-spectrum phosphor combined with narrowband RGB, and can also have various combination forms. For example, a combination of blue light chip combined with green light chip, blue light chip exciting red phosphor, and blue light chip exciting full-spectrum phosphor can be used; for example, a combination of blue light chip exciting red quantum dots and green quantum dots respectively, combined with blue light chip exciting full-spectrum phosphor, wherein the red quantum dots can be red quantum dot film, red quantum dot powder, or red quantum crystal; for example, a combination of violet light chip exciting red, green, and blue phosphors respectively, combined with blue light chip or violet light chip exciting full-spectrum phosphor. Each of the above combination schemes can enable at least three light-emitting components to mix light to form white light, or at least one light-emitting component to directly emit white light.

[0041] Further, please refer to Figure 1 The light source assembly 100 also includes pads 3. Each receiving slot 11 has a corresponding pad 3, which includes a first pad 31 and a second pad 32. Both the first pad 31 and the second pad 32 are at least partially located within their respective receiving slots 11. Each light-emitting component 2 is disposed on its corresponding first pad 31, and the light-emitting component 2 is electrically connected to both the first pad 31 and the second pad 32. That is, each receiving slot 11 is equipped with an independent pair of first pads 31 and second pads 32. The light-emitting component 2 is die-bonded to the first pad 31 and forms positive and negative electrical connections with both the first pad 31 and the second pad 32, respectively. Thus, the power supply circuits of each light-emitting component 2 are independent and do not interfere with each other. In a specific embodiment, the first pad 31 is electrically connected to the negative electrode of the light-emitting component 2 via a gold wire 4, and the second pad 32 is electrically connected to the positive electrode of the light-emitting component 2 via a gold wire 4.

[0042] For example, the first pad 31 can also serve as the die-bonding and heat dissipation pad for the light-emitting component 2, allowing the heat from each light-emitting component 2 to be dissipated outward through its own independent first pad 31. For example, the light source assembly 100 can also have a separate heat dissipation pad at the corresponding position of each receiving slot 11, with the light-emitting component 2 die-bonded on the heat dissipation pad. The heat dissipation pad is independent of the first pad 31 and the second pad 32, thereby further separating the power supply circuit and the heat dissipation circuit. For example, the first pad 31 and the second pad 32 can also be configured as pins extending to the back of the bracket structure 1, to facilitate surface mounting of the light source assembly 100 to the external circuit board. Since each receiving slot 11 uses an independent control pad and an independent heat dissipation pad, when a certain light-emitting component 2 is controlled and heats up independently, its heat will not be conducted to the other light-emitting components 2, thereby greatly reducing the thermal impact between the light-emitting components 2 and avoiding the heat accumulation caused by all chips sharing the middle heat dissipation pad in the existing dual-cup structure, significantly improving the reliability and color accuracy stability of the LED.

[0043] Furthermore, the light source assembly 100 also includes a controller, which is electrically connected to the first light-emitting component 21, the second light-emitting component 22, the third light-emitting component 23, and the fourth light-emitting component 24, and can individually control the light emitted by the first light-emitting component 21, the second light-emitting component 22, the third light-emitting component 23, and the fourth light-emitting component 24. That is, the light intensity of each light-emitting component 2 can be independently adjusted by the controller, thereby achieving true separate control and individual color accuracy control.

[0044] For example, the controller can use a driver chip with multiple independent drive channels, each drive channel being connected to a light-emitting component 2, and independently adjusting each output in a closed loop according to the target color coordinates and brightness. Since each light-emitting component 2 is placed in an independent receiving slot 11 and is independently electrically connected, the controller's adjustment of any light-emitting component 2 is not affected by the light color of the other light-emitting components 2. Therefore, it can compensate and adjust for the different light decays generated by each light-emitting component 2 during long-term use, continuously maintaining the white balance and color accuracy of the lamp output, thereby maintaining a high standard of display quality over a long period of time.

[0045] The operation of the light source assembly 100 is described below. When the light source assembly 100 is powered on, the controller outputs independent drive signals to the first light-emitting component 21, the second light-emitting component 22, the third light-emitting component 23, and the fourth light-emitting component 24. Among them, at least three light-emitting components 2 that provide narrowband primary color light emit high-purity red, green, and blue light respectively, which mix on one side of the light-emitting surface to form a white light base, giving the light source a high color gamut characteristic; the fourth light-emitting component 24 that provides full-spectrum white light directly outputs a continuous and smooth white light spectrum, filling the peak and valley bands between the peaks of the narrowband primary color light, so that the overall output spectrum is continuous.

[0046] The present invention also provides a backlight module, which includes a light source assembly 100 from the above embodiments. The specific structure of the light source assembly 100 is as described in the above embodiments. Since this backlight module adopts all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be elaborated further here. The backlight module can be applied to devices with liquid crystal display panels that require backlighting, such as LCD TVs, LCD monitors, automotive displays, and commercial displays.

[0047] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A light source assembly, characterized in that, include: A support structure having at least four spaced-apart receiving slots, wherein the support structure forms a light-emitting surface on one side of the slot opening; as well as, At least four light-emitting components are provided, and the at least four light-emitting components are arranged corresponding to at least four receiving slots. The at least four light-emitting components include a first light-emitting component, a second light-emitting component, a third light-emitting component, and a fourth light-emitting component. Among them, the light emitted by at least three of the light-emitting components can be mixed on one side of the light-emitting surface to form white light, and at least one of the light-emitting components can emit white light on one side of the light-emitting surface.

2. The light source assembly as described in claim 1, characterized in that, The first light-emitting component includes a first light-emitting chip and a first light conversion unit. The light emitted by the first light-emitting chip is converted into red light and emitted on one side of the light-emitting surface after passing through the first light conversion unit.

3. The light source assembly as described in claim 2, characterized in that, The first light-emitting chip is a first blue light-emitting chip and / or a first violet light-emitting chip; and / or, The first light conversion section contains red phosphor and / or red quantum dot powder.

4. The light source assembly as described in claim 1, characterized in that, The second light-emitting component includes a second light-emitting chip and a second light conversion unit. The light emitted by the second light-emitting chip is converted into green light by the second light conversion unit and emitted from one side of the light-emitting surface.

5. The light source assembly as described in claim 4, characterized in that, The second light-emitting chip employs a second blue light-emitting chip and / or a second violet light-emitting chip; and / or, The second light conversion section contains green phosphor and / or green quantum dot powder.

6. The light source assembly as described in claim 1, characterized in that, The first light-emitting component uses a red light-emitting wafer; and / or, The second light-emitting component uses a green light-emitting wafer; and / or, The third light-emitting component employs a third blue light-emitting chip; and / or, The fourth light-emitting component uses a cyan light-emitting wafer.

7. The light source assembly as described in claim 1, characterized in that, The fourth light-emitting component includes a third light-emitting chip and a full-spectrum phosphor. The light emitted by the third light-emitting chip is converted into white light after passing through the full-spectrum phosphor and emitted from one side of the light-emitting surface.

8. The light source assembly as described in claim 7, characterized in that, The full-spectrum phosphor includes cyan phosphor, yellow-green phosphor, and red phosphor; and / or, The third light-emitting chip is either a fourth blue light chip or a third violet light chip.

9. The light source assembly as described in claim 8, characterized in that, The wavelength of the light excited by the cyan phosphor is between 470 nm and 510 nm; and / or, The wavelength of the light excited by the yellow-green phosphor is between 540 nm and 580 nm; and / or, The wavelength of the light excited by the red phosphor is between 640 nm and 670 nm.

10. The light source assembly as claimed in claim 1, characterized in that, The light source assembly also includes pads, and each of the receiving slots is provided with a corresponding pad. The pads include a first pad and a second pad. The first pad and the second pad are at least partially located in the corresponding receiving slots. Each light-emitting component is disposed on the corresponding first pad, and the light-emitting component is electrically connected to the first pad and the second pad, respectively.

11. The light source assembly as claimed in claim 1, characterized in that, The light source assembly also includes a controller, which is electrically connected to the first light-emitting component, the second light-emitting component, the third light-emitting component, and the fourth light-emitting component, and can individually control the first light-emitting component, the second light-emitting component, the third light-emitting component, and the fourth light-emitting component to emit light.

12. A backlight module, characterized in that, Includes the light source assembly as described in any one of claims 1 to 11.

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