New-type LED lamp bead

Abstract

The present invention belongs to the technical field of LEDs, and in particular relates to a new-type LED lamp bead. The LED lamp bead comprises a cup body, and a first light-emitting assembly, a second light-emitting assembly and a third light-emitting assembly which are arranged on the cup body, wherein the first light-emitting assembly is configured to emit green light, the second light-emitting assembly is configured to emit blue light, the third light-emitting assembly is configured to emit blue light, and the second light-emitting assembly or the third light-emitting assembly is provided with a phosphor layer, such that the blue light emitted by the second light-emitting assembly or the third light-emitting assembly transmits through the phosphor layer to form red light. The LED lamp bead emits red light by means of the combination of the blue light and the phosphor layer, which replaces the original red light lamp bead, thereby improving the performance of the LED lamp bead and reducing the cost.

Description

A new type of LED lamp beads Technical Field

[0001] The invention belongs to the technical field of LEDs, and in particular relates to a novel LED lamp bead. Background Art

[0002] LED lighting has many advantages, including high color gamut, high brightness, long life, energy conservation and environmental protection, and real-time color control. In particular, the high color gamut LED backlight makes the screens of electronic products such as TVs, mobile phones, and tablets that use it have more vivid colors and higher color reproduction. Currently, LED lamp beads use the three primary colors of RGB to form a variety of colors of light, generally including red lamp beads, blue lamp beads, and green lamp beads. Among the existing three-color lamp beads, the material of the red lamp beads is mostly made of gallium arsenide. However, due to the regulation of gallium arsenide, the production of red lamp beads is difficult and costly, and the power is limited. In addition, during product use, as the temperature rises, the brightness of the red light decreases significantly. This is due to the fact that the existing red lamp beads are directly made of gallium arsenide material. Technical issues

[0003] The purpose of the present invention is to provide a new type of LED lamp bead, which emits red light, orange light or yellow light through a combination of blue light and a phosphor layer, replacing the original red light lamp bead, improving the performance of the LED lamp bead and reducing the cost. Technical Solutions

[0004] Based on this, the present invention provides a new type of LED lamp bead, including a cup body, a first light-emitting component, a second light-emitting component and a third light-emitting component provided on the cup body, wherein the first light-emitting component is configured to emit green light, the second light-emitting component is configured to emit blue light, and the third light-emitting component is configured to emit a third color light;

[0005] The first light-emitting assembly includes at least a first light-emitting chip, the second light-emitting assembly includes a second light-emitting chip for emitting blue light, and the third light-emitting assembly includes a third light-emitting chip for emitting blue light. The second light-emitting chip or the third light-emitting chip is further provided with a first phosphor layer, so that the blue light emitted by the second light-emitting chip or the third light-emitting chip passes through the phosphor layer to form a third color light;

[0006] Wherein, the third color light includes red light, orange light and yellow light.

[0007] In the novel LED lamp bead as described above, the phosphor layer is sprayed or dotted on the outer peripheral surface of the second light-emitting component or the third light-emitting component.

[0008] In the novel LED lamp bead as described above, the thickness of the phosphor layer is 1 to 250 microns.

[0009] In the novel LED lamp bead as described above, the second light-emitting component includes a plurality of second light-emitting chips arranged in series.

[0010] In the novel LED lamp bead as described above, the first light-emitting component includes a plurality of first light-emitting chips arranged in series.

[0011] In the novel LED lamp bead as described above, the third light-emitting component includes a plurality of third light-emitting chips arranged in series.

[0012] As for the novel LED lamp bead described above, the cup body is further encapsulated with an encapsulation layer that covers the first light-emitting component, the second light-emitting component and the third light-emitting component.

[0013] In the novel LED lamp bead as described above, the encapsulation layer is a transparent layer, and the transparent layer is formed by one or a combination of epoxy resin, silicone resin, and silica gel materials.

[0014] In the novel LED lamp bead as described above, the packaging layer is a diffusion powder layer. Beneficial effects

[0015] The implementation of the embodiments of the present invention has the following beneficial effects:

[0016] 1. The present invention provides a new type of LED lamp bead, which adds a first phosphor layer to the second light-emitting component or the third light-emitting component that emits blue light, so that the emitted blue light passes through the phosphor layer and becomes a third color light. It can be configured with red light, orange light or yellow light according to needs, so as to realize the traditional three-color LED lamp bead. Moreover, compared with the traditional red light lamp bead, it is not limited by the material limitations of the red light lamp bead, and can realize higher power lamp beads to meet the brightness requirements and reduce the overall cost.

[0017] 2. The new LED lamp beads of the present invention can use a single wick or a combination of multiple wicks in series to increase the overall power of the light-emitting component and meet brightness requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0019] FIG1 is a schematic diagram of a first embodiment of a novel LED lamp bead according to the present invention;

[0020] FIG2 is a schematic diagram of a second embodiment of a novel LED lamp bead according to the present invention. Modes for Carrying Out the Invention

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0022] As shown in Figure 1, an embodiment of the present invention provides a new type of LED lamp bead, including a cup body 1, and a first light-emitting component 2, a second light-emitting component 3 and a third light-emitting component 4 are provided on the cup body 1. The first light-emitting component 2 is used to emit green light, the second light-emitting component 3 is used to emit blue light, and the third light-emitting component 4 is used to emit a third color light; the first light-emitting component 2 includes at least a first light-emitting chip 21, the second light-emitting component 3 includes a second light-emitting chip 31 for emitting blue light, and the third light-emitting component 4 includes a third light-emitting chip 41 for emitting blue light. A first phosphor layer is also provided on the second light-emitting chip 31 or the third light-emitting chip 41, so that the blue light emitted by the second light-emitting chip 31 or the third light-emitting chip 41 forms a third color light after passing through the phosphor layer; wherein, the third color light includes red light, orange light, and yellow light. The present invention provides a new type of LED lamp bead, which adds a first phosphor layer on the second light-emitting component or the third light-emitting component that emits blue light, so that the emitted blue light passes through the phosphor layer and becomes a third color light. It can be configured with red light, orange light or yellow light according to needs, so as to realize the traditional three-color LED lamp bead. Moreover, compared with traditional red light lamp beads, it is not limited by the material limitations of red light lamp beads, can realize higher power lamp beads, meet brightness requirements, and reduce overall costs.

[0023] Of course, the green light emitted by the first light-emitting component 2 in this embodiment can also be emitted by combining blue light with a phosphor layer. Specifically, the first light-emitting chip 21 is configured to emit blue light, and a second phosphor layer is provided on the first light-emitting chip 21. This allows the blue light emitted by the first light-emitting chip 21 to pass through the phosphor layer and then transform into green light. This only requires the use of a green phosphor layer in combination with the relatively inexpensive blue light-emitting chip, further reducing the overall cost of the three-color LED lamp beads.

[0024] In addition, in embodiments of the present invention, the light-emitting component for emitting blue light can utilize a combination of gallium nitride and sapphire, which is significantly less expensive than gallium arsenide. Furthermore, the combination of a second light-emitting component 3 or a third light-emitting component 4 emitting blue light in conjunction with a phosphor layer to emit red light is less susceptible to ambient temperature during operation, effectively reducing brightness degradation caused by high temperatures.

[0025] In this embodiment of the present invention, a combination of a second light-emitting component 3 or a third light-emitting component 4 emitting blue light in conjunction with a phosphor layer emits red light. The red light can also be adjusted to different wavelengths based on the parameters of the phosphor layer. Generally, the wavelength of red light emitted by this combination is between 50 and 1000 nm. During production, the phosphor layer can be formed by selecting phosphors of different wavelengths according to the preset parameters of the LED lamp beads.

[0026] In this embodiment of the present invention, the phosphor layer is formed by combining red phosphor and AB glue. During production, the phosphor layer is sprayed or dotted onto the outer surface of the second light-emitting component 3 or the third light-emitting component 4. This simplifies production and helps reduce the overall cost of the LED lamp. Furthermore, depending on the intended use, the phosphor layer in this embodiment of the present invention has a thickness of 1 to 250 microns.

[0027] Specifically, in the embodiment of the present invention, the second light-emitting component 3 is located between the first light-emitting component 2 and the third light-emitting component 4 , and the phosphor layer is provided on the second light-emitting component 3 .

[0028] As shown in Figures 1 and 2, in this solution, the light-emitting assembly can use a single wick or a combination of multiple wicks in series, which can increase the overall power of the light-emitting assembly and meet brightness requirements. Specifically, the second light-emitting assembly 3 includes multiple second light-emitting chips 31 arranged in series. The first light-emitting assembly 2 includes multiple first light-emitting chips 21 arranged in series. The third light-emitting assembly 4 includes multiple third light-emitting chips 41 arranged in series. This can achieve different brightness levels of light output according to demand. The light output is efficient, stable, and easy to control, enriching its application in lighting, display and other fields.

[0029] Taking the second light-emitting component as an example, the operating voltage of the second light-emitting component 3 is 3.0V to 100.0V, such as 3.0V, 6.0V, 9.0V, 18.0V, 12.0V, 18.0V, 27.0V, 36.0V, 54.0V, 100.0V, etc.; the light-emitting chip may have the above voltage, or multiple light-emitting chips may be connected in series to form the above operating voltage, for example, 9.0V is achieved by connecting three 3.0 chips in series.

[0030] In order to further enhance the brightness display effect, the cup body 1 in this solution is further encapsulated with an encapsulation layer that covers the first light-emitting component 2 , the second light-emitting component 3 and the third light-emitting component 4 .

[0031] The first embodiment of the encapsulation layer is as follows: the encapsulation layer is a transparent layer, and the transparent layer is formed by one or a combination of epoxy resin, silicone resin, and silica gel materials.

[0032] The second embodiment of the encapsulation layer is: the encapsulation layer is a diffusion powder layer. The use of a diffusion powder layer can make the brightness of the product more uniform when it is illuminated. The composition of the diffusion powder in this solution is:

[0033] Glue A: Glue B: CY-3000 = 100%: 100%: 10%, which has the advantages of uniform light spot modification, consistent aperture color, high product purity, high temperature resistance, small impact on brightness attenuation, and is compatible with both patch and direct plug-in products.

[0034] In an embodiment of the present invention, a base island 5 is provided in the cup body 1, and a first positive electrode pin 51 and a first negative electrode pin 52 are provided on opposite sides of the base island 5. The first light-emitting component 2 is attached to the base island 5 and is electrically connected to the first positive electrode pin 51 and the first negative electrode pin 52 respectively.

[0035] A second positive electrode pin 53 and a second negative electrode pin 54 are further provided on opposite sides of the base island 5 ; the second light-emitting component 3 is attached to the base island 5 and electrically connected to the second positive electrode pin 53 and the second negative electrode pin 54 respectively.

[0036] A third positive pin 55 and a third negative pin 56 are also provided on opposite sides of the base island 5, the third positive pin 55 is provided between the first positive pin 51 and the second positive pin 53, and the third negative pin 56 is provided between the first negative pin 52 and the second negative pin 54; the second light-emitting component 3 is attached to the base island 5 and is electrically connected to the second positive pin 53 and the second negative pin 54 respectively.

[0037] The present invention provides a new type of LED lamp bead, which adds a phosphor layer on the second light-emitting component or the third light-emitting component that emits blue light, so that the emitted blue light passes through the phosphor layer and turns into red light, so as to realize the traditional three-color light LED lamp bead. Moreover, compared with the traditional red light lamp bead, it is not limited by the material limitations of the red light lamp bead, and can realize higher-power lamp beads, meet the brightness requirements, and reduce the overall cost.

[0038] It should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but such information should not be limited to these terms, which are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information. In addition, the orientations or positional relationships indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0039] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A new type of LED lamp bead, characterized in that, The invention comprises a cup body (1), wherein the cup body (1) is provided with a first light-emitting component (2), a second light-emitting component (3) and a third light-emitting component (4), wherein the first light-emitting component (2) is used to emit green light, the second light-emitting component (3) is used to emit blue light, and the third light-emitting component (4) is used to emit a third color light; The first light-emitting component (2) comprises at least a first light-emitting chip (21), the second light-emitting component (3) comprises a second light-emitting chip (31) for emitting blue light, and the third light-emitting component (4) comprises a third light-emitting chip (41) for emitting blue light. A first phosphor layer is further provided on the second light-emitting chip (31) or the third light-emitting chip (41), so that the blue light emitted by the second light-emitting chip (31) or the third light-emitting chip (41) forms a third color light after passing through the phosphor layer; Wherein, the third color light includes red light, orange light and yellow light.

2. A novel LED lamp bead according to claim 1, characterized in that: The first light-emitting chip (21) is used to emit blue light, and a second phosphor layer is further provided on the first light-emitting chip (21), so that the blue light emitted by the first light-emitting chip (21) forms green light after passing through the phosphor layer.

3. A novel LED lamp bead according to claim 2, characterized in that: The phosphor layer is sprayed or dotted on the outer peripheral surface of the second light-emitting component (3) or the third light-emitting component (4).

4. A novel LED lamp bead according to claim 3, characterized in that: The thickness of the phosphor layer is 1 to 250 microns.

5. A novel LED lamp bead according to any one of claims 1-4, characterized in that: The second light-emitting component (3) comprises a plurality of second light-emitting chips (31) arranged in series.

6. A novel LED lamp bead according to claim 5, characterized in that: The first light-emitting component (2) comprises a plurality of first light-emitting chips (21) arranged in series.

7. The novel LED lamp bead according to claim 5, characterized in that: The third light-emitting component (4) comprises a plurality of third light-emitting chips (41) arranged in series.

8. The novel LED lamp bead according to claim 1, characterized in that: The cup body (1) is also encapsulated with an encapsulation layer that covers the first light-emitting component (2), the second light-emitting component (3) and the third light-emitting component (4).

9. The novel LED lamp bead according to claim 8, characterized in that: The encapsulation layer is a transparent layer, and the transparent layer is formed by one or a combination of epoxy resin, silicone resin, and silica gel materials.

10. The novel LED lamp bead according to claim 8, characterized in that: The encapsulation layer is a diffusion powder layer.

Images