Dimming LED device and system

Abstract

The utility model discloses a dimming LED device and a dimming LED system, which are applied to the field of LED lamp banks and comprise a substrate and at least three LED components connected with the substrate. The at least three LED components comprise a first LED component, a second LED component and a third LED component; a color point of light emitted by the first LED component, a color point of light emitted by the second LED component and a color point of light emitted by the third LED component serve as reference color points of the dimming LED device, and the reference color points are correspondingly located in areas of a five-order Mecanum ellipse with coordinate points of (0.6406, 0.3571), (0.3920, 0.5160) and (0.1677, 0.1940) as centers respectively on a CIE1931 chromaticity diagram. According to the utility model, the light of the color points in the closed pattern area formed by all the reference color points on the chromaticity diagram can be adjusted, so that the color gamut width of the dimming LED device and the power density of the device are improved.

Description

Technical Field

[0001] This utility model relates to the field of LED lighting, and in particular to a dimming LED device and system. Background Technology

[0002] Currently, LED (Light Emitting Diode) lighting dimming devices mainly use two color temperatures to achieve mixed dimming: one low color temperature and one high color temperature. The LED chips emitting these two color temperatures can be integrated into the same emitting surface or set up independently. The color temperature of the LED chips in existing dimming LED devices is mainly concentrated between 2700K and 6500K, and these devices are primarily used for functional lighting. However, because current dimming LED devices can only adjust the color temperature between 2700-6500K, they cannot meet the requirements for scenarios that require emitting soft, colored light, such as malt green, lemon yellow, or dusk red—non-lighting functions—as auxiliary colors that influence human psychology and rhythms. This is due to their narrow color gamut and low power density.

[0003] Therefore, there is an urgent need in the field to provide a dimming LED device that can solve the problems of narrow color gamut and low power density of current dimming LED devices. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a dimming LED device and system that solves the problems of narrow color gamut and low power density of dimming LED devices in the prior art.

[0005] To solve the above-mentioned technical problems, this utility model provides a dimming LED device, comprising:

[0006] A substrate and at least three LED components, wherein the LED components are connected to the substrate;

[0007] The at least three LED components include a first LED component, a second LED component, and a third LED component;

[0008] The color point of the light emitted by the first LED component is located in the region of a 5th-order McAdam ellipse centered at the coordinate point (0.5918, 0.3916) on the CIE1931 chromaticity diagram.

[0009] The color point of the light emitted by the second LED component is located in the region of a 5th-order McAdam ellipse centered at the coordinate point (0.3920, 0.5160) on the CIE1931 chromaticity diagram;

[0010] The color point of the light emitted by the third LED component is located in the region of a 5th-order McAdam ellipse centered at the coordinate point (0.1677, 0.1940) on the CIE1931 chromaticity diagram.

[0011] The color point of the light emitted by the first LED component, the color point of the light emitted by the second LED component, and the color point of the light emitted by the third LED component are the reference color points of the dimming LED device.

[0012] Optionally, the dimming LED device includes at least four LED components;

[0013] The at least four LED components include the first LED component, the second LED component, the third LED component, and the white LED component;

[0014] The color point of the light emitted by the first LED component, the color point of the light emitted by the second LED component, the color point of the light emitted by the third LED component, and the color point of the light emitted by the white LED component are the reference color points of the dimming LED device.

[0015] Optionally, the dimming LED device includes four LED components;

[0016] The four LED components include a first LED component, a second LED component, a third LED component, and a white LED component.

[0017] Optionally, the dimming LED device includes five LED components;

[0018] The five LED components include one first LED component, one second LED component, one third LED component, and two white LED components.

[0019] Optionally, the two white LED components include an LED component that emits low color temperature white light and an LED component that emits high color temperature white light;

[0020] The low color temperature is between 1000K and 2700K, and the high color temperature is between 5000K and 6500K.

[0021] Optionally, the LED component is flip-chip bonded to the substrate.

[0022] Optionally, the LED component is connected to the substrate using flip-chip eutectic bonding.

[0023] Optionally, the electrodes of the LED component are gold-tin alloy electrodes;

[0024] A metal plating layer is formed on the area where the substrate surface is welded to the gold-tin alloy electrode, and the surface flatness of the metal plating layer is less than 0.3 micrometers.

[0025] Optionally, the LED component includes an LED chip and a fluorescent film disposed at the light-emitting area of ​​the LED chip.

[0026] Optionally, the fluorescent film is made of phosphor and silicone.

[0027] This utility model also provides a dimming LED system, including the dimming LED device as described above.

[0028] As can be seen, the dimming LED device provided by this utility model includes a substrate and at least three LED components, which are connected to the substrate. The at least three LED components include a first LED component, a second LED component, and a third LED component. The color point of the light emitted by the first LED component is located in the region of a 5th-order McAdam ellipse centered at the coordinate point (0.5918, 0.3916) on the CIE1931 chromaticity diagram. The color point of the light emitted by the second LED component is located in the region of a 5th-order McAdam ellipse centered at the coordinate point (0.3920, 0.5160) on the CIE1931 chromaticity diagram. The color point of the light emitted by the third LED component is located in the region of a 5th-order McAdam ellipse centered at the coordinate point (0.1677, 0.1940) on the CIE1931 chromaticity diagram. The color points of the light emitted by the first LED component, the second LED component, and the third LED component are the reference color points of the dimming LED device. This invention sets the color points emitted by the first, second, and third LED components as the reference color points of the device. At this time, the light emitted by all the LED components within the closed graphic area formed on the chromaticity diagram can be adjusted by the dimming LED device, which improves the color gamut width and power density of the dimming LED device. It can adjust non-lighting functions such as malt green, lemon yellow, and dusk red to influence human psychology and rhythm.

[0029] In addition, this utility model also provides a dimming LED system, which also has the above-mentioned beneficial effects. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0031] Figure 1 An example diagram showing the positions of the color points on the CIE1931 chromaticity diagram of the light emitted by each LED component in a dimming LED device, provided as an embodiment of this utility model;

[0032] Figure 2 A schematic diagram of the structure of a dimming LED device provided in an embodiment of this utility model;

[0033] Figure 3 A schematic diagram of another dimming LED device provided in this embodiment of the present invention;

[0034] The attached figures are labeled as follows:

[0035] 1-LED chip, 2-substrate, 3-circuit layer, 4-white wall layer, 10-first fluorescent film, 20-second fluorescent film, 30-third fluorescent film, 40-low color temperature fluorescent film, 50-high color temperature fluorescent film. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0037] Example 1:

[0038] Please refer to Figure 1 , Figure 1 An example diagram illustrating the positions of color dots on the CIE 1931 chromaticity diagram of the light emitted by each LED component in a dimming LED device, provided as an embodiment of this utility model. The dimming LED device may include:

[0039] A substrate and at least three LED components, with the LED components connected to the substrate;

[0040] The at least three LED components include a first LED component, a second LED component, and a third LED component;

[0041] The color point of the light emitted by the first LED component is located in the region of a 5th-order McAdam ellipse centered at the coordinate point (0.5918, 0.3916) on the CIE1931 chromaticity diagram.

[0042] The color point of the light emitted by the second LED component is located in the region of a 5th-order McAdam ellipse centered at the coordinate point (0.3920, 0.5160) on the CIE1931 chromaticity diagram.

[0043] The color point of the light emitted by the third LED component is located in the region of a 5th-order McAdam ellipse centered at the coordinate point (0.1677, 0.1940) on the CIE1931 chromaticity diagram.

[0044] The color points of light emitted by the first LED component, the second LED component, and the third LED component serve as the reference color points for the dimming LED device.

[0045] like Figure 1As shown, when the dimming LED device has three LED components, the reference point formed by the light emitted by the first, second, and third LED components is located on the CIE1931 chromaticity diagram within the region of a 5th-order McAdam ellipse centered on the three vertices that form a black triangle. The three vertices are the coordinates (0.5918, 0.3916), (0.3920, 0.5160), and (0.1677, 0.1940). In this embodiment, the color point of the light emitted by the first LED component is set on the CIE 1931 chromaticity diagram, located within the region of a 5th-order McAdam ellipse centered at the coordinate point (0.5918, 0.3916). The color point of the light emitted by the second LED component is set on the CIE 1931 chromaticity diagram, located within the region of a 5th-order McAdam ellipse centered at the coordinate point (0.3920, 0.5160). The color point of the light emitted by the third LED component is set on the CIE 1931 chromaticity diagram, located within the region of a 5th-order McAdam ellipse centered at the coordinate point (0.1677, 0.1940). The purpose is to determine the color points of the light emitted by the first, second, and third LED components, specifically determining the color, color temperature, and intensity of the light emitted by the first, second, and third LED components. The aforementioned 5th-order McAdam ellipse represents a range of color differences that are difficult for the human eye to distinguish. A 5th-order McAdam ellipse means that its boundary corresponds to the standard deviation of the color matching result variation five times the distance from the target color. The region centered at the coordinate point (0.5918, 0.3916) is red light, the region centered at the coordinate point (0.3920, 0.5160) is green light, and the region centered at the coordinate point (0.1677, 0.1940) is blue light. Therefore, it should be noted that the first, second, and third LED components in this application are not limited to representation on the CIE1931 chromaticity diagram. For different chromaticity diagrams, the color points emitted by the first, second, and third LED components in this embodiment also have corresponding color point coordinates. That is, other chromaticity diagrams can also be used to represent the color point positions of the light emitted by the first, second, and third LED components in this embodiment. In this embodiment, the LED component includes an LED chip for emitting light. The connection between the LED component and the substrate is achieved by connecting the electrodes of the LED chip to a metal layer disposed on the surface of the substrate. In this embodiment, the LED chip can employ a vertical chip structure, a flip-chip structure, or other chip structures. Furthermore, this embodiment does not limit the specific type of substrate; for example, a ceramic substrate can be used, specifically a 2835 substrate, a 3030 substrate, or other surface-mount substrates.

[0046] In this embodiment, the color points emitted by the first LED component, the second LED component, and the third LED component are set as reference color points for the dimming LED device. The light emitted by the LED device is adjusted using these reference color points. The light of the color points within the closed shape enclosed by the reference color points in the chromaticity diagram can all be adjusted, thus improving the color gamut width of the device. Furthermore, the use of three reference color points for dimming in this application, compared to existing devices that use two reference color points for dimming, increases the power density of the emitted light. It can adjust auxiliary colors such as malt green, lemon yellow, and dusk red, which are used to influence human psychology and rhythms, and can achieve a wider range of color temperature adjustment and color mixing effects.

[0047] The dimming method for the dimming LED device in this embodiment can refer to existing technologies. Existing technologies adjust the color and brightness of emitted light by controlling the channel ratio of different color LED chips when combining multi-color LED components. For example, by adjusting the current magnitude and ratio of red, green, and blue LED components, various colors of light can be mixed and adjusted, and the brightness of different colors can be regulated. This method can achieve rich color effects, but it also places higher demands on the control system. In this embodiment, the substrate provides mechanical support, electrical connection, and heat dissipation. The LED components and the substrate can be connected by welding, conductive adhesive, or other methods.

[0048] Furthermore, in order to increase the power density of the dimming LED device, the dimming LED device can be configured to include at least four LED components;

[0049] The at least four LED components include a first LED component, a second LED component, a third LED component, and a white LED component;

[0050] The color points emitted by the first LED component, the second LED component, the third LED component, and the white LED component serve as the reference color points for the dimming LED device.

[0051] Using three-color LED components for dimming LED devices has limitations, including a limited color temperature adjustment range and insufficiently pure white light output or low luminous efficacy. Therefore, this embodiment uses a dimming LED device comprising at least four LED components. These at least four LED components include a first LED component, a second LED component, a third LED component, and a white LED component. The purpose of adding this white LED component is to optimize the performance and function of the dimming LED device, improving the color temperature, color rendering index, brightness, and color performance of the emitted light. Therefore, by adding an additional white LED component, the color temperature range and luminous efficacy of the dimming LED device can be expanded, achieving smoother color temperature transitions, higher luminous efficacy, and purer white light output.

[0052] Furthermore, the color point emitted by the white LED component added in this embodiment, together with the color points emitted by the first, second, and third LED components, serves as the reference color point for the dimming LED device. This embodiment does not limit the color point of the white LED component's emitted light on the CIE 1931 chromaticity diagram. In this embodiment, the color point with color coordinates (0.3461, 0.3467) on the CIE 1931 chromaticity diagram can be used, or other white light color points can also be used. For example, the color point of the white LED component's emitted light on the CIE 1931 chromaticity diagram is located within the region of a 5th-order McAdam ellipse centered at the coordinate point (0.3461, 0.3467). It should also be noted that, in addition to the first, second, third, and white LED components mentioned above, this embodiment can also include LED components capable of emitting other colors of light.

[0053] Furthermore, in order to improve the color gamut and power density of the dimming LED device while taking into account the manufacturing cost of the device, the dimming LED device can be configured to include four LED components.

[0054] The four LED components include a first LED component, a second LED component, a third LED component, and a white LED component.

[0055] It should be noted that in this embodiment, the number of LED components is set to four, which ensures both the color gamut width of the dimming LED device and the manufacturing cost of the device. For example... Figure 1As shown, when the dimming LED device has four LED components, the reference points for the light emitted by the first, second, and third LED components are the three vertices of a red triangle on the CIE1931 chromaticity diagram. These three vertices can be coordinates (0.6406, 0.3571), (0.4242, 0.5223), and (0.1973, 0.2177). The reference point for the light emitted by the white LED component is the white light color point selected within the area enclosed by the red triangle on the CIE1931 chromaticity diagram. This white light color point can be coordinates (0.3461, 0.3467).

[0056] Furthermore, in order to improve the stability of the connection between the LED component and the substrate and to improve the heat dissipation performance of the device, the LED component and the substrate can be flip-chip bonded.

[0057] It should be noted that in this embodiment, the LED component is flip-chip bonded to the substrate. This bonding method improves the stability of the connection and increases the contact area with the substrate, thus improving the heat dissipation of the device. Furthermore, flip-chip bonding allows the active surface of the LED chip to face downwards, directly connecting it to the substrate. This shortens the signal transmission path, reduces signal delay and parasitic inductance and capacitance effects, thereby improving signal transmission speed and stability. This better meets the application requirements of high-speed communication and other applications with high signal integrity requirements, while also saving packaging area, increasing I / O pin density, reducing fabrication complexity, and improving production efficiency.

[0058] Furthermore, in order to reduce the complexity of the manufacturing process and improve the precision and stability of the welding, the LED components can be connected to the substrate using flip-chip eutectic bonding.

[0059] It should be noted that this embodiment utilizes the excellent conductivity of eutectic solder to form a low-resistance connection path after soldering. This helps reduce resistance and voltage drop during signal transmission, decreases energy loss, and improves signal integrity and transmission efficiency. Simultaneously, it possesses good conductivity stability and high thermal conductivity, improving device stability and heat dissipation performance. Furthermore, it should be noted that the substrate is generally made of non-metallic material. Therefore, if the LED component is connected to the substrate using flip-chip eutectic soldering, a corresponding metal layer needs to be prepared on the substrate to achieve eutectic bonding with the electrodes of the chip in the LED component.

[0060] Furthermore, in order to ensure that the LED component and the substrate achieve eutectic bonding, the electrodes of the LED component can be set as gold-tin alloy electrodes;

[0061] A metal plating layer is formed on the area where the substrate surface is welded to the gold-tin alloy electrode, and the surface flatness of the metal plating layer is less than 0.3 micrometers.

[0062] It should be noted that in this embodiment, the electrodes of the LED component are set as gold-tin alloy electrodes, and a metal plating layer is formed on the surface of the substrate for eutectic bonding with the gold-tin alloy electrodes. This enables the LED component to be bonded to the substrate. Furthermore, the surface flatness of the metal plating layer is less than 0.3 micrometers, ensuring smooth contact between the metal plating layer and the gold-tin alloy electrodes during eutectic bonding, thus improving the stability of the eutectic bond. In addition, this embodiment does not limit the specific material of the metal plating layer on the substrate surface, as long as it can achieve eutectic bonding with the electrodes of the chip in the LED component. For example, a silver plating layer or a gold plating layer can be used.

[0063] Furthermore, in order to ensure the accuracy of the color point of the light emitted by the LED component and reduce the complexity of LED component manufacturing, the LED component can be configured to include an LED chip and a fluorescent film disposed at the light emission point of the LED chip.

[0064] It should be noted that in this embodiment, the LED component is composed of an LED chip and a fluorescent film. That is, the color point of the light emitted by the LED component is converted into light of the corresponding color when the light emitted by the LED chip shines on the fluorescent film.

[0065] Furthermore, in order to ensure that the light passing through the fluorescent film achieves the required color, the fluorescent film can be made of phosphor and silicone.

[0066] In this embodiment, the fluorescent film is made by uniformly mixing phosphor and silicone. It can be bonded to the light-emitting surface of the LED chip using silicone as an adhesive layer. The color rendering index (CRI) of the emitted color can be freely adjusted from 30 to 97 by the phosphor formulation and ratio. The silicone acts as a shaping agent. When the phosphor is irradiated by the light emitted from the LED chip, it is excited and emits light. Different phosphors emit different colors of light. By setting different fluorescent films, the LED component can emit light of a specified color, thereby reducing the manufacturing cost of the LED chip.

[0067] The dimming LED device provided by this utility model embodiment includes a substrate and at least three LED components connected to the substrate. The at least three LED components include a first LED component, a second LED component, and a third LED component. The color point of the light emitted by the first LED component is located within a 5th-order McAdam ellipse centered at coordinates (0.5918, 0.3916) on the CIE 1931 chromaticity diagram. The color point of the light emitted by the second LED component is located within a 5th-order McAdam ellipse centered at coordinates (0.3920, 0.5160) on the CIE 1931 chromaticity diagram. The color point of the light emitted by the third LED component is located within a 5th-order McAdam ellipse centered at coordinates (0.1677, 0.1940) on the CIE 1931 chromaticity diagram. The color points of the light emitted by the first, second, and third LED components are the reference color points of the dimming LED device. This invention sets the color points emitted by the first, second, and third LED components as the reference color points of the device. At this time, the light emitted by all the LED components within the closed graphic area formed on the chromaticity diagram can be adjusted by the dimming LED device, which improves the color gamut width and power density of the dimming LED device. It can adjust non-lighting functions such as malt green, lemon yellow, and dusk red to influence human psychology and rhythm.

[0068] Furthermore, by adding a white LED component to the first, second, and third LED components, this embodiment of the invention optimizes the performance and function of the dimming LED device, improving the color temperature, color rendering index, brightness, and color performance of the emitted light. By setting the number of LED components to four, the manufacturing cost of the device can be reduced while maintaining its color gamut width. Flip-chip bonding of the LED components to the substrate enhances connection stability and increases the contact area with the substrate, improving heat dissipation. The excellent conductivity of the eutectic solder forms a low-resistance connection path after bonding, helping to reduce resistance and voltage drop during signal transmission and minimizing energy loss. This design improves signal integrity and transmission efficiency while maintaining good electrical conductivity and high thermal conductivity, thus enhancing device stability and heat dissipation. By setting the electrodes of the LED component as gold-tin alloy electrodes and depositing a metal coating on the substrate surface with a surface flatness of less than 0.3 micrometers, a smooth contact between the metal coating and the gold-tin alloy electrodes during eutectic bonding is ensured, improving the stability of the eutectic bond. The LED component includes an LED chip and a fluorescent film at the light emission point of the LED chip, ensuring the accuracy of the emitted light color point while reducing the complexity of LED component fabrication. Furthermore, by using a fluorescent film made of phosphor and silicone, the light passing through the fluorescent film achieves the desired color.

[0069] Example 2:

[0070] The dimming LED device provided in this embodiment differs from that in Embodiment 1 above in that:

[0071] The aforementioned dimming LED device comprises five LED components;

[0072] The five LED components include a first LED component, a second LED component, a third LED component, and two white LED components.

[0073] It should be noted that the dimming LED device in this embodiment includes five LED components. Besides one first LED component, one second LED component, and one third LED component, two white LED components are also included. This further increases the power density of the LED device and improves the color temperature, color rendering index, brightness, and color performance of the emitted light, while avoiding the high cost caused by too many LED components. Furthermore, in this embodiment, the two white LED components can be configured to include one emitting low color temperature white light and one emitting high color temperature white light, with the low color temperature ranging from 1000K to 2700K and the high color temperature ranging from 5000K to 6500K. This further optimizes the stability of the dimming LED device during color temperature adjustment and improves device performance.

[0074] By applying the dimming LED device provided in this embodiment of the present invention, and by setting the dimming LED device to include five LED components, including two white LED components, the power density of the LED device can be further improved, the color temperature, color rendering, brightness and color performance of the emitted light can be further improved, and the manufacturing cost of the device can be reduced.

[0075] In one feasible implementation, the dimming LED device can refer to Figure 2 , Figure 2 A schematic diagram of a dimming LED device provided in an embodiment of this utility model. The device may include:

[0076] The substrate 2 and five LED components are connected to the substrate 2; each LED component includes an LED chip 1 and a fluorescent film disposed at the light emission point of the LED chip 1.

[0077] The five LED components include a first LED component, a second LED component, a third LED component, a low color temperature LED component, and a high color temperature LED component;

[0078] The color point of the light emitted by the first LED component is located in the region of a 5th-order McAdam ellipse centered at the coordinate point (0.5918, 0.3916) on the CIE1931 chromaticity diagram.

[0079] The color point of the light emitted by the second LED component is located in the region of a 5th-order McAdam ellipse centered at the coordinate point (0.3920, 0.5160) on the CIE1931 chromaticity diagram.

[0080] The color point of the light emitted by the third LED component is located in the region of a 5th-order McAdam ellipse centered at the coordinate point (0.1677, 0.1940) on the CIE1931 chromaticity diagram.

[0081] The low color temperature LED component emits light with a color temperature of 1000K-2700K, while the high color temperature LED component emits light with a color temperature of 5000K-6500K. Furthermore, the color points emitted by both the low and high color temperature LED components are located within the closed graphic area enclosed by the color points emitted by the first, second, and third LED components.

[0082] The color points of light emitted by the first LED component, the second LED component, the third LED component, the low color temperature LED component, and the high color temperature LED component serve as the reference color points for the dimming LED device.

[0083] like Figure 2 In this dimming LED device, a circuit layer 3 and a white wall layer 4 formed around the LED component are also included. The white wall layer 4 prevents light emitted by the LED chip from leaking out from all sides, thereby improving the luminous efficiency of the dimming LED device. Additionally, as... Figure 2 As shown, for different LED components, different fluorescent films can be set to enable the LED components to emit light from different color point areas. Specifically, for the first LED component, which includes a first fluorescent film 10, a red fluorescent film can be set for the corresponding color point area; for the second LED component, which includes a second fluorescent film 20, a green fluorescent film can be set for the corresponding color point area; for the third LED component, which includes a third fluorescent film 30, a blue fluorescent film can be set for the corresponding color point area; for the low color temperature LED component, which includes a low color temperature fluorescent film 40, a low color temperature white fluorescent film can be set for the corresponding color point area; and for the high color temperature LED component, which includes a high color temperature fluorescent film 50, a high color temperature white fluorescent film can be set for the corresponding color point area. Furthermore, the top view of the dimming LED device in this embodiment can be referenced... Figure 3 , Figure 3 This is a schematic diagram of another dimming LED device provided in an embodiment of the present invention.

[0084] The dimming LED system provided in the embodiments of this utility model is described below. The dimming LED system described below can be referred to in correspondence with the dimming LED device described above.

[0085] The dimming LED system provided in this embodiment of the present invention may include the dimming LED devices described above.

[0086] In this embodiment, the dimming LED system may include only one dimming LED device, or it may include multiple dimming LED devices.

[0087] The dimming LED system provided in this embodiment includes the dimming LED device as described above. Therefore, its beneficial effects are at least as follows: by setting the color points of the light emitted by the first LED component, the second LED component, and the third LED component as the reference color points of the device, the dimming LED device can adjust the light of the color points of the color points of all LED components within the closed graphic area formed on the chromaticity diagram. This improves the color gamut width and power density of the dimming LED device, and enables the adjustment of non-lighting functions such as malt green, lemon yellow, and dusk red, which are auxiliary color lights used to influence human psychology and rhythm.

[0088] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0089] Furthermore, it should be noted that in this document, relationships such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations are intended to cover non-exclusive inclusion.

[0090] The above provides a detailed description of a dimming LED device and system provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the structure and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A dimming LED device, characterized in that, include: A substrate and at least three LED components, wherein the LED components are connected to the substrate; The at least three LED components include a first LED component, a second LED component, and a third LED component; The color point of the light emitted by the first LED component is located in the region of a 5th-order McAdam ellipse centered at the coordinate point (0.5918, 0.3916) on the CIE1931 chromaticity diagram. The color point of the light emitted by the second LED component is located in the region of a 5th-order McAdam ellipse centered at the coordinate point (0.3920, 0.5160) on the CIE1931 chromaticity diagram; The color point of the light emitted by the third LED component is located in the region of a 5th-order McAdam ellipse centered at the coordinate point (0.1677, 0.1940) on the CIE1931 chromaticity diagram. The color point of the light emitted by the first LED component, the color point of the light emitted by the second LED component, and the color point of the light emitted by the third LED component are the reference color points of the dimming LED device.

2. The dimming LED device according to claim 1, characterized in that, The dimming LED device includes at least four LED components; The at least four LED components include the first LED component, the second LED component, the third LED component, and the white LED component; The color point of the light emitted by the first LED component, the color point of the light emitted by the second LED component, the color point of the light emitted by the third LED component, and the color point of the light emitted by the white LED component are the reference color points of the dimming LED device.

3. The dimming LED device according to claim 2, characterized in that, The dimming LED device includes four LED components; The four LED components include a first LED component, a second LED component, a third LED component, and a white LED component.

4. The dimming LED device according to claim 2, characterized in that, The dimming LED device includes five LED components; The five LED components include one first LED component, one second LED component, one third LED component, and two white LED components.

5. The dimming LED device according to claim 1, characterized in that, The LED component is flip-chip bonded to the substrate.

6. The dimming LED device according to claim 5, characterized in that, The LED component is connected to the substrate using flip-chip eutectic bonding.

7. The dimming LED device according to claim 6, characterized in that, The electrodes of the LED component are gold-tin alloy electrodes; A metal plating layer is formed on the area where the substrate surface is welded to the gold-tin alloy electrode, and the surface flatness of the metal plating layer is less than 0.3 micrometers.

8. The dimming LED device according to claim 1, characterized in that, The LED component includes an LED chip and a fluorescent film disposed at the light-emitting area of ​​the LED chip.

9. The dimming LED device according to claim 8, characterized in that, The fluorescent film is made of fluorescent powder and silicone.

10. A dimming LED system, characterized in that, Includes the dimming LED device as described in any one of claims 1 to 9.

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