TWM565405U - LED light emitting device - Google Patents

Abstract

An LED lighting device comprises a substrate, four light emitting diodes and a package. The four light-emitting diodes are respectively defined as a first light-emitting diode, a second light-emitting diode, a third light-emitting diode, and a fourth light-emitting diode, which can respectively emit a wavelength of 610 nm to 780 nm, Beams with a wavelength of 500 nm to 570 nm and 450 nm to 495 nm and white light beams. The illumination range of any of the light-emitting diodes may partially overlap the illumination range of at least one of the remaining light-emitting diodes. The four light emitting diodes are arranged in a plurality of rows on the substrate. The package is covered with four light emitting diodes. The light-emitting angle of the fourth light-emitting diode is smaller than the light-emitting angle of the other light-emitting diodes. When the LED lighting device is energized, the light beams emitted by the four light emitting diodes can be mixed with each other to become a mixed light beam.

Description

LED lighting device

The present invention relates to a light emitting device, and more particularly to an LED light emitting device.

As the related manufacturers or consumers are increasingly demanding the color of the light emitted by the lamps, displays, etc., the existing lamps and displays using the three primary colors of LEDs as the light source have been unable to meet the needs of the industry or consumers.

Therefore, the author is concentrating on research and using the application of theory, and proposes a creation that is reasonable in design and effective in improving the above problems.

The main purpose of the present invention is to provide an LED lighting device for improving the prior art, such as lamps, displays, and the like using three primary color LEDs as light sources, and the colors presented cannot meet the needs of the industry or the consumer.

In order to achieve the above object, the present invention provides an LED lighting device, including: a substrate; a first light emitting diode, a second light emitting diode, a third light emitting diode, and a fourth light emitting diode. The first light emitting diode is fixedly disposed on the substrate, and the first light emitting diode can emit a light beam having a wavelength of 610 nm to 780 nm; the second light emitting diode is fixedly disposed on the substrate, and the second light emitting The diode can emit a light beam having a wavelength of 500 nm to 570 nm; the third light emitting diode is fixedly disposed on the substrate, and the third light emitting diode can emit a light beam having a wavelength of 450 nm to 495 nm; An illumination range of any one of the light emitting diode, the second light emitting diode, the third light emitting diode, and the fourth light emitting diode, and an irradiation range portion of at least one of the remaining light emitting diodes The fourth light-emitting diode is fixedly disposed on the substrate, and the fourth light-emitting diode can emit a white light beam; the first light-emitting diode The polar body, the second light emitting diode, the third light emitting diode, and the fourth light emitting diode are arranged in a plurality of rows on the substrate; at least one package is disposed on the substrate, and the package is disposed on the substrate The first light emitting diode, the second light emitting diode, the third light emitting diode, and the fourth light emitting diode are coated, and the package has a light emitting surface on a side away from the substrate, The light beam emitted by the first light emitting diode, the second light emitting diode, the third light emitting diode, and the fourth light emitting diode can be emitted outward through the light emitting surface; wherein the fourth light emitting diode The light-emitting angle of the body is smaller than the light-emitting angle of the first light-emitting diode, and the light-emitting angle of the fourth light-emitting diode is smaller than the light-emitting angle of the second light-emitting diode, and the light-emitting angle of the fourth light-emitting diode is smaller than the light-emitting angle a light-emitting angle of the third light-emitting diode; wherein, when the LED light-emitting device is energized, the first light-emitting diode, the second light-emitting diode, the third light-emitting diode, and the fourth light-emitting diode The beams emitted by the body can be mixed with each other to form a mixed beam

In order to achieve the above object, the present invention also provides an LED light-emitting device, wherein the LED light-emitting device comprises: a substrate; a first light-emitting diode, a second light-emitting diode, a third light-emitting diode, and a first a fourth light-emitting diode, the first light-emitting diode is fixedly disposed on the substrate, and the first light-emitting diode can emit a light beam having a wavelength of 610 nm to 780 nm; the second light-emitting diode is fixedly disposed on the substrate The second light emitting diode can emit a light beam having a wavelength of 500 nm to 570 nm; the third light emitting diode is fixedly disposed on the substrate, and the third light emitting diode can emit a wavelength of 450 nm to 495 nm. a light beam; an illumination range of the first light emitting diode, the second light emitting diode, the third light emitting diode, and the fourth light emitting diode can be at least equal to at least one of the remaining light emitting diodes The illumination range of the first light emitting diode, the second light emitting diode, the third light emitting diode, and the fourth light emitting diode are arranged in a plurality of rows on the substrate; Two packages, each defined as one a first package body and a second package body are disposed on the substrate, the first package body covering the first light emitting diode, the second light emitting diode, and the second package body a third light emitting diode having a light emitting surface on a side of the first package away from the substrate, the first light emitting diode, the second light emitting diode, and The light emitted by the third light emitting diode can be emitted through the light emitting surface of the first package; the second package covers the fourth light emitting diode, and the second package is away from the side of the substrate Having a light-emitting surface; the fourth light-emitting diode can emit a light beam having a wavelength of 450 nm to 495 nm, and the second package body contains yellow phosphor powder, and the light beam emitted by the fourth light-emitting diode can excite a yellow phosphor and a white light beam emitted from the light-emitting surface of the second package; wherein, when the LED light-emitting device is energized, the light beam emitted from the light-emitting surface of the first package and the light emitted by the second package The outwardly directed beams can be mixed with each other to form a mixed beam.

The beneficial effect of the present invention may be that the user can control the current and voltage of the four light-emitting diodes, and can finely adjust the brightness and color temperature of the mixed light beam emitted by the LED light-emitting device, thereby satisfying the correlation. The color or the requirements of the industry or consumer.

In order to further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings are only for reference and description, and are not intended to limit the creation.

1‧‧‧LED lighting device

11‧‧‧First Light Emitting Diode

12‧‧‧Second light-emitting diode

13‧‧‧ Third Light Emitting Diode

14, 14' ‧ ‧ fourth luminous diode

141‧‧‧ grain structure

1411‧‧‧Glossy

1412‧‧‧ ring side

20‧‧‧Substrate

21‧‧‧ feet

30‧‧‧Package

30a‧‧‧Glossy

30b‧‧‧ring side

31‧‧‧First package

31a‧‧‧Glossy

32, 32'‧‧‧ second package

32a‧‧‧Glossy

40‧‧‧Opacity package

50‧‧‧ opaque layer

60‧‧‧light cup

601‧‧‧ first opening

602‧‧‧ second opening

603‧‧‧ inside

1A is a schematic view of a first embodiment of the LED lighting device of the present invention.

FIG. 1B is a schematic diagram of a first light emitting diode, a second light emitting diode, and a third light emitting diode of the LED light emitting device of the present invention.

1C is a schematic view of a fourth light emitting diode of the LED light emitting device of the present invention.

2 is a plan view of a first embodiment of the LED lighting device of the present invention.

3 is a cross-sectional view of the LED lighting device of FIG. 1 taken along section line III.

4 is a schematic view of a second embodiment of the LED lighting device of the present invention.

5 is a cross-sectional view of the LED lighting device of FIG. 4 taken along section line V.

Fig. 6 is a schematic view showing the second embodiment of the LED light-emitting device of the present invention in the manufacturing process.

Fig. 7 is a schematic view showing a third embodiment of the LED light-emitting device of the present invention.

Fig. 8 is a schematic view showing a fourth embodiment of the LED light-emitting device of the present invention.

Figure 9 is a plan view of Figure 8.

Fig. 10 is a schematic view showing a fifth embodiment of the LED light-emitting device of the present invention.

Figure 11 is a schematic view of a sixth embodiment of the LED lighting device of the present invention.

Figure 12 is a plan view of Figure 11 .

Fig. 13 is a top plan view showing a seventh embodiment of the LED light-emitting device of the present invention.

The following describes an embodiment of the LED lighting device of the present invention by a specific specific example, and those skilled in the art can easily understand other advantages and effects of the present invention by the contents disclosed in the present specification. The present invention may also be implemented or applied by other specific examples. The details of the present specification may also be based on different viewpoints and applications, and various modifications and changes may be made without departing from the spirit of the present invention. The drawing of this creation is only a brief description, and is not depicted in actual size, that is, the actual size of the relevant composition is not reflected, which will be described first. The following embodiments are intended to further explain the scope of this creation, but do not limit the scope of the creation in any way.

Please refer to FIG. 1A, FIG. 1B, FIG. 1C, FIG. 2 and FIG. 3, which are schematic diagrams of a first embodiment of the LED light-emitting device of the present invention. As shown in the figure, the LED lighting device 1 includes four LEDs, a substrate 20 and a package 30. The four light-emitting diodes are fixedly disposed on the substrate 20, and the package body 30 is covered with four light-emitting diodes. In practical applications, the LED lighting device 1 shown in FIG. 1A and FIG. 2 can be used as a single module, and the user can connect the plurality of pins 21 exposed on the substrate 20 to select the respective LEDs. The power input; of course, in different embodiments, the substrate 20 shown in FIG. 1A and FIG. 2 may be one of the areas of the circuit board of the electronic device, that is, the LED light-emitting device 1 may also be directly fabricated on the electronic device. On the circuit board.

The four light emitting diodes are respectively defined as a first light emitting diode 11, a second light emitting diode 12, a third light emitting diode 13 and a fourth light emitting diode 14. The first light-emitting diode 11 can emit a light beam having a wavelength of 610 nm to 780 nm, that is, a light beam which is red by the naked eye; and the second light-emitting diode 12 can emit a wavelength of 500 nm to 570. The light beam of the nanometer is a green light beam which is viewed by the naked eye; the third light-emitting diode 13 can emit a light beam having a wavelength of 450 nm to 495 nm, that is, a light beam which is blue in the naked eye. The first light-emitting diode 11, the second light-emitting diode 12, and the third light-emitting diode 13 can each have a single-grain structure, and can be fabricated in any manufacturing manner according to requirements, and can be matched with different means according to requirements. It is fixed to the substrate 20 and is not limited thereto.

Specifically, as shown in FIG. 1B, the first light-emitting diode 11, the second light-emitting diode 12, and the third light-emitting diode 13 emit light beams that can be scattered in any direction, that is, The grain structure of the light-emitting diode 11, the second light-emitting diode 12, and the third light-emitting diode 13 is not provided with any light-shielding structure. In addition, the crystal shape of the first light-emitting diode 11, the second light-emitting diode 12, and the third light-emitting diode 13 may be a rectangular shape, a hemispherical shape, or the like, and is not limited thereto.

As shown in FIG. 1C, the fourth light-emitting diode 14 can emit a white light beam. In a specific application, the fourth light-emitting diode 14 can be composed of a single-grain structure or a multi-grain structure. Limit it. The grain structure 141 of the fourth LED 14 includes a light-emitting surface 1411 and a ring side surface 1412. The light-emitting surface 1411 is located on the opposite side of the substrate structure 20 from the substrate 20, and the ring-side surface 1412 is connected to the periphery of the light-emitting surface 1411. The white light beam emitted by the fourth light-emitting diode 14 will only be emitted outward through the light-emitting surface 1411, and the white light beam will not be emitted outward through the ring side 1412. The specific structure of the fourth light-emitting diode 14 can be selected according to requirements, as long as the white light beam can be emitted, which is covered by the embodiment. For example, the fourth light-emitting diode 14 can be a blue light-emitting diode. The grain structure of the yellow phosphor powder and the ultraviolet light emitting diode are mixed with the crystal structure of blue, green and red phosphor powder or by the blue light emitting diode, the red light emitting diode and the blue light emitting light The grain structure of the polar body.

Please refer to FIG. 1B , FIG. 1C and FIG. 3 . FIG. 1B is a schematic diagram showing the grain structure of the first LED, the second LED 12 and the third LED 13; FIG. 1C shows A schematic view of the grain structure of the fourth light-emitting diode 14; FIG. 3 is a schematic view of the LED light-emitting device 1 of FIG. 1 cut along section line III. fourth The exit angle of the light beam emitted by the grain structure of the light-emitting diode 14 is smaller than that of the first light-emitting diode 11 (the second light-emitting diode 12 or the third light-emitting diode 13). The angle of light exiting the beam.

As shown in FIG. 2, the four light emitting diodes 11, 12, 13, 14 are arranged in a plurality of rows on the substrate 20, that is, the four light emitting diodes 11, 12, 13, 14 are not in line. Arranged on the substrate 20, and the illumination range of any one of the light-emitting diodes can overlap with a portion of the illumination range of at least one of the remaining light-emitting diodes; specifically, as shown in FIG. 2, the second light-emitting diode The irradiation range of the body 12 may overlap with the portions of the first light-emitting diode 11 and the third light-emitting diode 13 , and the irradiation range of the fourth light-emitting diode 14 may be the second light-emitting diode. 12. The portions of the illumination range of the third light-emitting diode 13 overlap each other. Preferably, the four light emitting diodes 11, 12, 13, 14 are disposed on the substrate 20 in an array, such that the first light emitting diode 11, the second light emitting diode 12, and the third light emitting diode 13 And the light beam emitted by the fourth light-emitting diode 14 can mix a relatively uniform mixed light beam.

The package body 30 is provided with four light-emitting diodes 11, 12, 13, and 14. The package body 30 can be a light-transmitting structure, and the light emitted by the four light-emitting diodes 11, 12, 13, and 14 can be packaged. The body 30 is ejected outward. In this embodiment, an opaque package 40 is disposed around the package 30, which covers the ring side 30b of the package 30 (as shown in FIG. 3), and four LEDs 11, 12, The light beams emitted by the semiconductors 13 and 14 can be emitted only through a light-emitting surface 30a (shown in FIG. 3) of the package 30, and the light-emitting surface 30a is located on a side away from the substrate 20. In this embodiment, the opaque package 40 is disposed around the transparent package 30, but not limited thereto. In different applications, the ring of the transparent package 30 may also be used. The side surface is formed with an opaque layer by coating or the like.

In addition, the opaque package 40 may have a reflective structure (for example, a reflective paint or the like) on one side of the ring side surface 30b of the light-transmissive package 30, whereby the four light-emitting diodes 11 are provided. The light beams emitted by 12, 13, and 14 will be reflected by the reflective structure of the opaque package 40, thereby increasing the emission of the four light-emitting diodes. The light beam, the light extraction efficiency emitted by the light exit surface 30a. Of course, in different applications, before the opaque package 40 is disposed, the reflective structure is formed before the ring side of the transparent package 30, and then the periphery of the transparent package 30 is opaque. Light package 40.

In the embodiment in which the ring side surface 30b of the light-transmissive package 30 is formed by coating or the like, and the opaque layer is formed, the opaque layer may have a reflected beam for one side of the transparent package 30. The function is to increase the light-emitting efficiency of the light emitted by the four light-emitting diodes 11, 12, 13, 14 from the light-emitting surface 30a.

In addition, depending on the application mode of the LED light-emitting device 1, the light-transmissive package 30 may be provided with no opaque package 40, an opaque layer or an associated reflective structure. For example, the LED light-emitting device When the application is an indicator light, the opaque package 40, the opaque layer or the related reflective structure may not be disposed around the transparent package 30.

In practical applications, the light-transmissive package 30 may also incorporate light-diffusing particles (for example, PMMA, Silicone, etc.) so that the light beams emitted by the four light-emitting diodes 11, 12, 13, 14 are more uniformly The light-emitting surface 30a is emitted, so that the light-mixed light beam emitted from the light-emitting surface 30a can exhibit a better light-mixing performance. It is to be noted that, in this embodiment, the transparent package 30 is a rectangular cube. However, the shape of the transparent package 30 may be changed according to requirements. For example, the LED lighting device 1 of the present embodiment may be a surface light source, and when the LED lighting device 1 is used as an indicator light, the light-transmitting package 30 may be in a hemispherical shape.

The order in which the light-transmitting package 30 and the opaque package 40 are disposed on the substrate 20 is not limited thereto, and may be selected according to requirements. For example, the opaque package 40 having the recess may be formed on the substrate 20, and then the transparent encapsulant is filled in the recess of the opaque package 40 to form a transparent package. 30; Alternatively, the light-emitting package 30 may be formed first, and then the opaque package 40 may be formed on the periphery thereof.

As described above, the red light emitted by the four light-emitting diodes 11, 12, 13, and 14, respectively The light beam, the green light beam, the blue light beam and the white light beam are collectively emitted from the light emitting surface 30a of the light transmissive package 30, and are mutually mixed to form a mixed light beam, and the relevant user can adjust the input. a voltage or current of the light-emitting diode 11, a voltage or current input to the second light-emitting diode 12, a voltage or current input to the third light-emitting diode 13, and a voltage or current input to the fourth light-emitting diode 14, The brightness, color temperature, and the like of the light-mixing light beam emitted from the light-emitting surface 30a are adjusted. The LED light-emitting device 1 of the present invention is provided on the four light-emitting diodes 11, 12, 13, and 14 of the substrate 20 in a plurality of rows, and the user can finely adjust the mixed light beams of different color temperatures according to requirements.

In a specific application, the LED lighting device 1 may further include a processing module (for example, a microprocessor fixedly disposed on the substrate 20) electrically connected to the four LEDs 11, 12, 13, 14 and the processing module. The group can individually control the brightness, color temperature, and the like of the first light-emitting diode 11, the second light-emitting diode 12, the third light-emitting diode 13, and the fourth light-emitting diode 14, and the user can pass the processing mode. The group controls the brightness and color temperature of the four light-emitting diodes 11, 12, 13, and 14 respectively, and adjusts the mixed light beams of different color temperatures and brightness according to the demand.

Please refer to FIG. 4 to FIG. 6 together, which is a schematic diagram of a second embodiment of the LED lighting device of the present invention. As shown in the figure, the present embodiment is different from the previous embodiment in that the LED light-emitting device 1 can include two packages 30, which are respectively defined as a first package body 31 and a second package body 32. And the light beam generated by the fourth light-emitting diode 14 is not only emitted by the light-emitting surface 1411 of the grain structure 141 (as shown in FIG. 1C), but the light beam generated by the fourth light-emitting diode 14 can be made of crystal grains. Any side of the structure 141 exits outwardly, i.e., the beam path emitted by the fourth LED 14 is similar to that of Figure 1B.

As shown in FIG. 5, it is a schematic cross-sectional view showing the LED light-emitting device 1 shown in FIG. 4 cut along a section line V. As shown in the figure, the light-emitting angle of the first light-emitting diode 11 (which may be the second light-emitting diode 12 or the third light-emitting diode 13) is substantially the same as the light-emitting angle of the fourth light-emitting diode 14.

As shown in FIG. 6 , the first package body 31 may be first formed on the substrate 20 , and the first package body 31 correspondingly covers the first light emitting diode 11 , the second light emitting diode 12 , and the third light emitting diode Body 13. The shape of the first package body 31 may be changed according to the arrangement of the first light emitting diode 11, the second light emitting diode 12 and the third light emitting diode 13 on the substrate 20, not in the figure. It is limited to the appearance of the L-shaped. The first package body 31 has a light transmitting structure, and the light beams generated by the first light emitting diode 11, the second light emitting diode 12, and the third light emitting diode 13 can be used by the first package 31. One side is shot outwards.

In practical applications, the ring side surface of the first package body 31 (connecting the periphery of the light exit surface 31a) is provided with an opaque layer 50, which may be formed on the ring side surface of the first package body 31 by coating or the like. No restrictions. The light-impermeable layer 50 can block the light beams emitted by the first light-emitting diode 11, the second light-emitting diode 12, and the third light-emitting diode 13 from being emitted outward, and the first light-emitting diode 11 and the second light-emitting body The light beams emitted from the diodes 12 and the third light-emitting diodes 13 can only be emitted outward through the light-emitting surface 31a of the first package body 31. In the different embodiments, the opaque layer 50 can also reflect the first light-emitting diode 11, the second light-emitting diode 12, and the third light-emitting diode 13 beam.

As shown in FIG. 4 and FIG. 5, the second package body 32 covers the fourth LED body 14. The side surface of the second package body 32 away from the substrate 20 is a light-emitting surface 32a, and the remaining side surface of the light-emitting surface 32a is defined as The ring side surface of the second package body 32 is provided with an opaque layer 50, which prevents the light beam emitted by the fourth light-emitting diode 14 from being emitted outward from the side of the non-light-emitting surface 32a of the second package body 32. The light beam emitted from the fourth light-emitting diode 14 can be emitted only through the light-emitting surface 32a of the second package 32. The opaque layer 50 disposed on the side surface of the ring of the second package body 32 is the same as the opaque layer 50 except that the light beam emitted from the fourth light-emitting diode 14 is emitted from the side of the ring. The light layer 50 may also be a light beam that is reflected by the fourth light-emitting diode 14.

As described above, the opaque layer 50 is disposed on the side of the ring of the first package body 31. And the opaque layer 50 disposed on the side of the ring of the second package 32, the light beams emitted by the four LEDs 11, 12, 13, 14 are limited by the light-emitting surface 31a of the first package 31 and The light exit surface 32a of the second package 32 is emitted.

In the embodiment of the present embodiment, the second package body 32 is a rectangular body, but the shape of the second package body 32 may also be changed according to requirements. For example, the second package body 32 is adjacent to the second package body 32. A portion of the light-emitting surface 31a of the first package 31 may be in a hemispherical shape. The thickness of the first package body 31 and the thickness of the second package body 32 may be substantially the same as shown in the figure, but not limited thereto. In different embodiments, the thickness of the second package body 32 may also be , not greater than the thickness of the first package body 31.

Please refer to FIG. 7, which is a schematic diagram of a third embodiment of the LED lighting device of the present invention. As shown in the figure, the difference between the embodiment and the foregoing embodiment is that the package 30 of the LED lighting device 1 is a light transmitting structure, and the light beams emitted by the four LEDs 11, 12, 13, 14 are It can be emitted outward through any side of the package 30. In addition, a light cup 60 is disposed on the substrate 20, and a first opening 601 and a second opening 602 are respectively defined at the two ends. The diameter of the first opening 601 is smaller than the diameter of the second opening 602. As shown in the figure, the side cross-sectional view of the lamp cup 60 may be a hollow truncated cone shape, and the first opening 601 may be correspondingly sleeved on the LED lighting device 1. The inner side surface 603 of the lamp cup 60 is a reflective surface (or has a reflective structure), and the mixed light beam emitted outwardly from the transparent package 30 can be reflected by the inner side surface of the lamp cup 60 to the second opening. Shot in the direction of 602. The appearance of the lamp cup 60 and its arrangement with respect to the LED lighting device 1 are not limited to those shown in the drawings, and may be changed as needed. Of course, in practical applications, the appearance of the package 30 may be changed according to requirements, and is not limited to the rectangular body shown in the drawing.

In different applications, the LED lighting device 1 may also have no package 30, and the four LEDs 1, 12, 13, 14 are correspondingly located in the first opening 601.

Please refer to FIG. 8 and FIG. 9 together, which is a schematic diagram of a fourth embodiment of the present invention. As shown in the figure, the biggest difference between this embodiment and the foregoing embodiment is that the substrate 20 is disposed. There is a first package body 31, a second package body 32' and an opaque package body 40. The opaque package 40 and the substrate 20 are formed with four recesses, and the four LEDs 11, 12, 13, 14' are correspondingly located in the four recesses, and the first package 31 is formed on the first illuminator The second package 32 ′ is formed in the recess in which the fourth light-emitting diode 12 ′ is located, and the second light-emitting diode 12 and the third light-emitting diode 13 are located in the three recesses. . The fourth light-emitting diode 14' may be a light beam capable of emitting a wavelength of 450 nm to 495 nm, that is, a light beam which is blue in the naked eye, and the second package 32' contains yellow phosphor powder, and the fourth The light beam emitted by the light-emitting diode 14' can excite the yellow phosphor, and the white light beam is emitted from the light-emitting surface 32a of the second package 32'.

The four recesses formed by the opaque package 40 can block the light emitted by the LEDs 11, 12, 13, 14' disposed in the recesses, and emit light to the non-first package 31. The side surface of the light-emitting surface 32a of the surface 31a or the non-second package 32' is emitted, that is, the light beams emitted from the respective light-emitting diodes 11, 12, 13, 14' cannot be emitted outward through the side walls forming the respective grooves. In this embodiment, the opaque package 40 is exemplified as the structure formed on the substrate 20, but not limited thereto. In different embodiments, the first package may be formed on the substrate 20. After 31, an opaque layer (similar to the opaque layer 50 shown in FIG. 4) is formed on the ring side surface of the first package body 31 (the side surface connected to the periphery of the light exit surface 31a), and then formed on the substrate 20. The second package body 32' (which contains the yellow phosphor powder) covering the fourth light-emitting diode 14' is finally formed, and finally, the opaque layer is formed on the ring side surface of the second package body 32'. In other words, the four light-emitting diodes 11, 12, 13, 14' of the LED lighting device 1 of the present embodiment can only pass the light-emitting surface 31a of the first package body 31 or the second package body 32. The light exiting surface 32a is emitted outwardly and cannot be emitted outward from other directions. Of course, in a practical application, the sidewall of the recess or the side of the opaque layer facing the first package 31 or the second package 32' may have a function of reflection, which is not limited herein.

In particular, in the present embodiment, the opaque package 40 is formed into a structure similar to a field type (ie, having the aforementioned four grooves) as an example, but the light-tight seal is not provided. The shape of the body 40 is not limited thereto. As shown in FIG. 10, in various embodiments, the opaque package 40 is formed in a non-tower structure.

Referring to FIG. 11 to FIG. 13 together, FIG. 11 and FIG. 12 are a sixth embodiment of the LED light-emitting device of the present invention, and FIG. 13 is a schematic view of a seventh embodiment of the LED light-emitting device of the present invention. As shown in FIG. 10, the LED light-emitting device 1 may include nine light-emitting diodes, which respectively include two of the foregoing first light-emitting diodes 11, two second light-emitting diodes 12, and two The three light emitting diodes 13 and the three fourth light emitting diodes 14'; the three fourth light emitting diodes 14' may be arranged in a line, while the remaining light emitting diodes are three fourth light emitting side by side. The diodes 14' are disposed, and the same light-emitting diodes are not adjacently disposed. In the embodiment of the present invention, nine recesses are formed correspondingly to the opaque package 40, and the opaque package 40 exhibits a shape similar to a nine-square grid, and the first package 31 and the second package 32 are provided. ' Correspondingly formed in the grooves as an example, but not limited thereto.

As shown in FIG. 13, the LED light-emitting device 1 may include two first light-emitting diodes 11, three second light-emitting diodes 12, three third light-emitting diodes 13, and a fourth light-emitting diode. The body 14 has nine light-emitting diodes arranged substantially in an array on the substrate 20, and the fourth light-emitting diodes 14 are correspondingly surrounded by the remaining light-emitting diodes, and the same light-emitting diodes are not adjacently disposed. Of course, in different embodiments, the number of the first LEDs 11, the second LEDs 12, and the third LEDs 13 may be changed according to requirements, and is not limited to the one shown in the figure. .

As described above, the number of the light-emitting diodes included in the LED light-emitting device 1 of the present invention may be changed according to requirements, and is not limited to four of the foregoing embodiments or nine of the embodiments. In order to enable the LED light-emitting device 1 to emit a relatively uniform light-mixing beam, the number of the light-emitting diodes may be four, nine, sixteen, twenty-five, and the like, and the arrangement of the light-emitting diodes on the substrate 20 Then it can correspond to 2X2, 3X3, 4X4, 5X5 and so on.

It is worth mentioning that the LED light-emitting device described in the foregoing embodiments may be formed by a package of a plastic leaded chip carrier (PLCC). The manufacturing, that is, the LED lighting device 1 can be modularly designed, and the related user can quickly and conveniently fix the LED lighting device 1 to the desired circuit board. Of course, the LED lighting device 1 is not limited to the above-described packaging method, or may be directly fixed to a desired circuit board in different manners.

In particular, the thickness of the package shown in each figure and its relative ratio to each of the light-emitting diodes are only one of the exemplary aspects. In practical applications, the thickness of the package can be changed according to requirements. , not limited to the one shown in the figure. In addition, the LED light-emitting device of the present invention can be used as various light sources, such as a surface light source, a point light source, etc., according to requirements, and can be applied to various types of lighting products, such as outdoor lighting, floodlighting, etc., and is not limited herein.

In summary, the LED lighting device of the present invention allows the user to finely adjust the brightness, color temperature, etc. of the mixed light beam projected by the LED light-emitting device through the design of the four light-emitting diodes. The LED lighting device has a good light distribution effect.

The above description is only a preferred and feasible embodiment of the present invention, and thus does not limit the scope of the patent of the present invention. Therefore, any equivalent technical changes made by using the present specification and the contents of the schema are included in the scope of protection of the present creation. .

Claims (10)

An LED light-emitting device, wherein the LED light-emitting device comprises: a substrate; a first light-emitting diode, a second light-emitting diode, a third light-emitting diode, and a fourth light-emitting diode; A light-emitting diode is fixedly disposed on the substrate, and the first light-emitting diode can emit a light beam having a wavelength of 610 nm to 780 nm; the second light-emitting diode is fixedly disposed on the substrate, and the second light-emitting diode can Generating a light beam having a wavelength of 500 nm to 570 nm; the third light emitting diode is fixedly disposed on the substrate, and the third light emitting diode can emit a light beam having a wavelength of 450 nm to 495 nm; the first light emitting diode The illumination range of the body, the second light emitting diode, the third light emitting diode, and the fourth light emitting diode may partially overlap the illumination range of at least one of the remaining light emitting diodes; The fourth light emitting diode is fixedly disposed on the substrate, and the fourth light emitting diode can emit a white light beam; the first light emitting diode, the second light emitting diode, the third light emitting diode, and the fourth Light-emitting diodes are arranged in multiple rows The substrate; the at least one package is disposed on the substrate, the package encapsulating the first LED, the second LED, the third LED, and the fourth LED The package has a light-emitting surface on a side away from the substrate, and the light beam emitted by the first light-emitting diode, the second light-emitting diode, the third light-emitting diode, and the fourth light-emitting diode The light emitting angle of the fourth light emitting diode is smaller than the light emitting angle of the first light emitting diode, and the light emitting angle of the fourth light emitting diode is smaller than the second light emitting diode. The light-emitting angle of the fourth light-emitting diode is smaller than the light-emitting angle of the third light-emitting diode; wherein, when the LED light-emitting device is energized, the first light-emitting diode and the second light-emitting diode Body, the third illuminating The light beams emitted by the diode and the fourth light emitting diode can be mixed with each other to form a mixed light beam. The LED light-emitting device of claim 1, wherein the fourth light-emitting diode has a grain structure, and the light beam emitted by the fourth light-emitting diode can only be emitted from the light-emitting surface of the grain structure. The LED light-emitting device of claim 1, wherein the package is a light-transmitting structure, the LED light-emitting device further comprising an opaque package, the opaque package surrounding the periphery of the package, The light beams emitted by the first light-emitting diode, the second light-emitting diode, the third light-emitting diode, and the fourth light-emitting diode can be emitted only through the light-emitting surface. The LED light-emitting device of claim 1, wherein the package is a light-transmissive structure, the package defines a ring side, the side of the ring is connected to the periphery of the light-emitting surface, and the side of the ring is provided with an impervious surface. a light layer, the opaque layer can prevent the light emitted by the first light emitting diode, the second light emitting diode, the third light emitting diode or the fourth light emitting diode from being emitted outward, and The light beam emitted by the first light emitting diode, the second light emitting diode, the third light emitting diode or the fourth light emitting diode can only be emitted outward through the light emitting surface. The LED lighting device of claim 1, wherein the LED lighting device comprises two packages, and the two packages are respectively defined as a first package and a second package, the first package Body coating the first light emitting diode, the second light emitting diode and the third light emitting diode, the second package covering the fourth light emitting diode; the first package and the first A side surface of the second package opposite to the substrate is a light exiting surface, and an annular opaque layer is disposed around a ring side of the periphery of the light emitting surface of the first package body, and a ring side surface surrounding the periphery of the light emitting surface of the second package body is disposed There is another opaque layer, and the first illuminating The light beam emitted by the diode, the second light emitting diode, the third light emitting diode, and the fourth light emitting diode can pass only through the light emitting surface of the first package and the second package. The light is emitted out of the way. The LED lighting device of claim 1, wherein the LED lighting device further comprises a processing module, the processing module electrically connecting the first LED, the second LED, the first a three-emitting diode and the fourth light-emitting diode, and the processing module can individually control the voltage and current entering any one of the light-emitting diodes to change the brightness and color temperature of the mixed light beam emitted by the LED light-emitting device . An LED light-emitting device, wherein the LED light-emitting device comprises: a substrate; a first light-emitting diode, a second light-emitting diode, a third light-emitting diode, and a fourth light-emitting diode; A light-emitting diode is fixedly disposed on the substrate, and the first light-emitting diode can emit a light beam having a wavelength of 610 nm to 780 nm; the second light-emitting diode is fixedly disposed on the substrate, and the second light-emitting diode can Generating a light beam having a wavelength of 500 nm to 570 nm; the third light emitting diode is fixedly disposed on the substrate, and the third light emitting diode can emit a light beam having a wavelength of 450 nm to 495 nm; the first light emitting diode The illumination range of the body, the second light emitting diode, the third light emitting diode, and the fourth light emitting diode may partially overlap the illumination range of at least one of the remaining light emitting diodes; The first light emitting diode, the second light emitting diode, the third light emitting diode, and the fourth light emitting diode are arranged in a plurality of rows on the substrate; at least two packages are respectively defined as a first package and a second package, the The first package covers the first light emitting diode, the second light emitting diode, and the third light emitting diode, and the first package is disposed on the substrate. The first package covers the first light emitting diode, the second light emitting diode, and the third light emitting diode. a light away from the side of the substrate The light emitted by the first light emitting diode, the second light emitting diode, and the third light emitting diode can be emitted through the light emitting surface of the first package; the second package covers the light a fourth light emitting diode having a light emitting surface on a side of the second package away from the substrate; the fourth light emitting diode emitting a light beam having a wavelength of 450 nm to 495 nm, wherein the second package includes a yellow fluorescent powder, the light beam emitted by the fourth light emitting diode can excite the yellow fluorescent powder and emit a white light beam from the light emitting surface of the second package; wherein when the LED light emitting device is energized, the first light emitting powder The light beam emitted from the light exit surface of the package and the light beam emitted from the light exit surface of the second package body can be mixed to form a mixed light beam. The LED light-emitting device of claim 7, wherein the LED light-emitting device comprises an opaque package, the opaque package is disposed on the substrate, and the opaque package is formed with the substrate a recess, the four recesses are not in communication with each other, and the sidewalls of each of the recesses are opaque, the first LED, the second LED, and the third LED The body and the fourth light-emitting diode are correspondingly located in the four recesses, and the second package body is correspondingly formed in the recess in which the fourth light-emitting diode is located, and the first package body is formed correspondingly to the rest. The light beam generated by the first light emitting diode, the second light emitting diode, and the third light emitting diode can only pass through the corresponding light emitting surface of the first package Shoot out. The LED light-emitting device of claim 7, wherein a ring-shaped side surface surrounding a periphery of the light-emitting surface of the first package body is provided with an opaque layer, and a ring side surface surrounding the periphery of the light-emitting surface of the second package body is provided with another An opaque layer. The LED lighting device of claim 7, wherein the LED lighting device further comprises a processing module, the processing module electrically connecting the first LED, the second LED, the first Three-emitting diode and the The fourth light emitting diode, and the processing module can individually control the voltage and current entering any one of the light emitting diodes to change the brightness and color temperature of the mixed light beam emitted by the LED light emitting device.