Lighting structure and lighting device

Abstract

The invention provides a lighting structure and a lighting device, and relates to the technical field of semiconductors, the lighting structure comprises at least one light emitting diode chip, the light emitting diode chip comprises an N-type semiconductor layer, a P-type semiconductor layer, and a first light emitting layer and a second light emitting layer arranged between the N-type semiconductor layer and the P-type semiconductor layer, the first light-emitting layer is located on the side, close to the P-type semiconductor layer, of the second light-emitting layer. The first light-emitting layer generates light of at least one wave band in an electroluminescent mode, the light generated by the first light-emitting layer excites the second light-emitting layer to generate light of at least one wave band, and the light of each wave band comprises at least one wavelength; the wavebands corresponding to the light generated by the illumination structure comprise cyan wavebands and / or green wavebands. The spectrum continuity and stability of the lighting structure are good, and human factor healthy lighting (including human factor full-spectrum lighting and human factor non-full-spectrum lighting) can be achieved.

Description

Technical Field

[0001] The present application relates to the field of semiconductor technology, and in particular, to an illumination structure and an illumination device. Background Art

[0002] As a light-emitting device that converts electrical energy into light energy, a light-emitting diode (LED) has the advantages of energy conservation, environmental protection, long service life, and high luminous efficiency, and is widely used in the lighting field. At the same time, the light-emitting diode has shifted from the initial goal of pursuing high luminous efficiency and low cost to achieve energy conservation and expand the market penetration rate to a new stage of pursuing light quality and health goals.

[0003] Existing illumination structures usually adopt a packaging form in which at least two conventional single-core single-wavelength light-emitting diode chips are stacked with phosphor, or a packaging form in which multi-wavelength electroluminescent light-emitting diode chips are stacked with phosphor. The former has problems such as high cost, complex driving method, complex packaging process, and poor spectral continuity, and the latter has problems such as the peak intensity will reverse with the change of current and the spectrum is relatively unstable. Most of the existing technologies only consider one or several of full spectrum, low blue light hazard, high color rendering index, high luminous efficiency, circadian lighting, and healthy lighting, and do not comprehensively integrate them into the lighting scheme. Summary of the Invention

[0004] The present application provides an illumination structure and an illumination device, which can reduce costs, simplify the driving method and packaging process, improve the continuity and stability of the spectrum, fully consider vision and rhythm, provide at least three illumination schemes, comprehensively integrate various factors, and achieve all-round healthy lighting.

[0005] In a first aspect, the present application provides an illumination structure, the illumination structure includes at least one light-emitting diode chip, the light-emitting diode chip includes an N-type semiconductor layer, a P-type semiconductor layer, and a first light-emitting layer and a second light-emitting layer disposed between the N-type semiconductor layer and the P-type semiconductor layer, the first light-emitting layer is located on a side of the second light-emitting layer close to the P-type semiconductor layer; the first light-emitting layer generates light of at least one band in an electroluminescent manner, and the light generated by the first light-emitting layer excites the second light-emitting layer to generate light of at least one band, and each band of the light includes at least one wavelength; the bands corresponding to the light generated by the illumination structure include a cyan band and / or a green band.

[0006] In the lighting structure provided by the present application, the light-emitting diode chip has two forms: electroluminescence and photoluminescence, which makes the spectral energy distribution of the lighting structure have good stability with the change of current. The second light-emitting layer of photoluminescence is located between the N-type semiconductor layer and the P-type semiconductor layer. The second light-emitting layer can release stress in advance, so as to improve the external quantum efficiency of the first light-emitting layer. At the same time, the second light-emitting layer itself has good crystal quality and can be reflected and absorbed multiple times between the N-type semiconductor layer and the P-type semiconductor layer, and the external quantum efficiency of the second light-emitting layer can also be improved.

[0007] The light-emitting diode chip includes at least one band and at least two different wavelengths. The number of wavelengths, specific wavelengths, peak wavelengths and full-width at half-maximum of different wavelengths, and the light intensity ratio of different wavelengths of the light-emitting diode chip can be selected according to needs, so as to achieve at least the first lighting mode, the second lighting mode, and the third lighting mode. The above three lighting modes all adopt at least one light-emitting diode chip with two forms of electroluminescence and photoluminescence, and are obtained through packaging. There are multiple packaging methods, the packaging process is simple, the driving method is simple, the control method is simple, which is convenient for cost control, and improves reliability and service life.

[0008] In the lighting structure provided by the present application, the bands corresponding to the light generated by the lighting structure include the cyan band and / or the green band, that is, the lighting source contains at least one of cyan light and green light, and can improve the body function by imitating natural sunlight, so as to achieve human-centered healthy lighting (including human-centered full-spectrum lighting and human-centered non-full-spectrum lighting).

[0009] Among them, in the first lighting mode, the lighting source contains and highlights green light, fully considering the scotopic and photopic vision, selecting the green light that is the most relaxing for the human eye under scotopic and photopic vision, effectively preventing and controlling myopia or the further progression of myopia; it does not contain cyan light, ensuring an extremely low M / P ratio, promoting the secretion of melatonin, promoting the relaxation of body and mind, promoting sleep, and protecting and repairing the human rhythm. In the second lighting mode, the lighting source contains and highlights cyan light, ensuring an extremely high M / P ratio, inhibiting the secretion of melatonin, being able to stimulate human vitality for a long time, promoting the improvement of human learning and work efficiency, etc., and the lighting source does not contain or contains little green light. In the third lighting mode, the lighting source contains and highlights both cyan light and green light at the same time, which can consider eye protection and an extremely high M / P ratio at the same time, and prevent and control myopia while promoting the improvement of human learning and work efficiency.

[0010] In a second aspect, the present application provides a lighting device, including a lighting lamp body, the lighting structure as described above, and a mosquito repellent structure, wherein the mosquito repellent structure generates mosquito repellent light; the lighting structure and the mosquito repellent are placed in the same lighting lamp body or in different lighting lamp bodies.

[0011] In the lighting device according to the embodiments of the present application, the lighting structure realizes three lighting schemes through spectral design, and uses a light-emitting diode chip with two light-emitting modes, namely electroluminescence and photoluminescence, and multiple wavelengths, thereby obtaining a human-centered healthy lighting light with a spectral stability that is closer to natural light, more eye-protecting, more efficient, and fully considering the impact of circadian rhythm. The mosquito repellent structure generates mosquito repellent light to increase the mosquito repellent function. In this way, it is possible to prevent mosquitoes from entering the working area to form interference, and prevent mosquitoes from entering the lamp, which is convenient for cleaning and maintenance.

[0012] The structure of the present application and its other invention purposes and beneficial effects will become more obvious and understandable through the description of the preferred embodiments in conjunction with the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 The first structural diagram of the light-emitting diode chip provided by the embodiment of the present application;

[0015] Figure 2 The second structural diagram of the light-emitting diode chip provided by the embodiment of the present application;

[0016] Figure 3 For Figure 2 the spectral diagram of the light-emitting diode chip in

[0017] Figure 4 The third structural diagram of the light-emitting diode chip provided by the embodiment of the present application;

[0018] Figure 5 For Figure 4 the spectrum of the light-emitting diode chip in

[0019] Figure 6 The fourth structural diagram of the light-emitting diode chip provided by the embodiment of the present application;

[0020] Figure 7 For Figure 6 the spectrum of the light-emitting diode chip in

[0021] Figure 8 The first spectral diagram of the lighting structure provided by the embodiment of the present application;

[0022] Figure 9 The second spectral diagram of the lighting structure provided by the embodiment of the present application;

[0023] Figure 10 The third spectrogram of the lighting structure provided by the embodiments of this application;

[0024] Figure 11 The first schematic diagram of the lighting structure provided by the embodiments of this application;

[0025] Figure 12 The second schematic diagram of the lighting structure provided by the embodiments of this application;

[0026] Figure 13 The third schematic diagram of the lighting structure provided by the embodiments of this application;

[0027] Figure 14 The fourth schematic diagram of the lighting structure provided by the embodiments of this application;

[0028] Figure 15 The fifth schematic diagram of the lighting structure provided by the embodiments of this application;

[0029] Figure 16 The sixth schematic diagram of the lighting structure provided by the embodiments of this application;

[0030] Figure 17 The seventh schematic diagram of the lighting structure provided by the embodiments of this application;

[0031] Figure 18 The eighth schematic diagram of the lighting structure provided by the embodiments of this application;

[0032] Figure 19 The ninth schematic diagram of the lighting structure provided by the embodiments of this application;

[0033] Figure 20 The tenth schematic diagram of the lighting structure provided by the embodiments of this application;

[0034] Figure 21 The eleventh schematic diagram of the lighting structure provided by the embodiments of this application;

[0035] Figure 22 The twelfth schematic diagram of the lighting structure provided by the embodiments of this application;

[0036] Figure 23 The thirteenth schematic diagram of the lighting structure provided by the embodiments of this application;

[0037] Figure 24 The fourteenth schematic diagram of the lighting structure provided by the embodiments of this application;

[0038] Figure 25 The fifteenth schematic diagram of the lighting structure provided by the embodiments of this application;

[0039] Figure 26 The sixteenth schematic diagram of the lighting structure provided by the embodiments of the present application;

[0040] Figure 27 The seventeenth schematic diagram of the lighting structure provided by the embodiments of the present application;

[0041] Figure 28 The eighteenth schematic diagram of the lighting structure provided by the embodiments of the present application;

[0042] Figure 29 A schematic diagram of the first light-emitting layer and the second light-emitting layer provided by the embodiments of the present application;

[0043] Figure 30 Another schematic diagram of the first light-emitting layer and the second light-emitting layer provided by the embodiments of the present application;

[0044] Figure 31 Another schematic diagram of the first light-emitting layer and the second light-emitting layer provided by the embodiments of the present application.

[0045] Explanation of reference numerals:

[0046] 101 - N-type semiconductor layer;

[0047] 102 - Second light-emitting layer;

[0048] 103 - First light-emitting layer;

[0049] 104 - P-type semiconductor layer;

[0050] 105 - Color conversion layer;

[0051] 106 - First barrier layer;

[0052] 107 - Second barrier layer;

[0053] 201 - First sublayer;

[0054] 202 - Second sublayer. Detailed implementation manners

[0055] In related technologies, lighting structures usually have the following forms:

[0056] The first is a packaging form that uses two or three conventional single-core single-wavelength light-emitting diode chips stacked with phosphors. For example, the peak wavelengths of two light-emitting diode chips are 450 nm and 480 nm respectively, and the peak wavelengths of three light-emitting diode chips are 440 nm, 465 nm, and 485 nm respectively. This form of lighting structure uses multiple conventional single-core single-wavelength light-emitting diode chips, which has high costs, complex driving methods, complex packaging processes, uneven control, and poor spectral continuity.

[0057] The second is the packaging form that uses a single light-emitting diode chip stacked with phosphor. This single light-emitting diode chip is a multi-wavelength electroluminescent light-emitting diode chip. The lighting structure of this form changes with the current, the peak intensity will reverse, and the spectrum is relatively unstable, which may cause the blue light hazard to increase or even exceed the standard.

[0058] In addition, existing lighting structures usually only consider one or several of full spectrum, low blue light hazard, high color rendering index, high luminous efficiency, circadian lighting, healthy lighting, etc., and do not comprehensively integrate them. Nor do they consider the influence of mosquitoes, which makes mosquitoes attracted by light and interfere with users. After the lighting structure is used for a period of time, mosquitoes will enter the interior of the lighting structure, affecting the beauty and use of the lighting structure.

[0059] In view of this, the present application provides a lighting structure that generates a lighting source. The lighting structure includes at least one light-emitting diode chip. The light-emitting diode chip includes an N-type semiconductor layer, a P-type semiconductor layer, and a first light-emitting layer and a second light-emitting layer disposed between the N-type semiconductor layer and the P-type semiconductor layer. The first light-emitting layer is located on the side of the second light-emitting layer close to the P-type semiconductor layer; the first light-emitting layer generates at least one band of light in an electroluminescent manner, and the light generated by the first light-emitting layer excites the second light-emitting layer to generate at least one band of light.

[0060] The light-emitting diode chip has two forms: electroluminescence (EL for short) and photoluminescence (PL for short), which makes the spectral energy distribution of the lighting structure stable with the change of current. The second light-emitting layer of photoluminescence is located between the N-type semiconductor layer and the P-type semiconductor layer. The second light-emitting layer can release stress in advance, so that the external quantum efficiency of the first light-emitting layer is improved. At the same time, the second light-emitting layer itself has good crystal quality and can reflect and absorb light conversion multiple times between the N-type semiconductor layer and the P-type semiconductor layer, and the external quantum efficiency of the second light-emitting layer can also be improved, so that the wavelengths generated by the first light-emitting layer and the second light-emitting layer can have higher external quantum efficiency (External Quantum Efficiency, EQE for short) compared with traditional LEDs.

[0061] The light-emitting diode chip includes at least one band and at least two different wavelengths. The number of wavelengths, specific wavelengths, peak wavelengths and full-width at half-maximum of different wavelengths, and the light intensity ratio of different wavelengths of the light-emitting diode chip can be selected as needed to achieve at least the first lighting mode, the second lighting mode, and the third lighting mode. The above three lighting modes all adopt at least one light-emitting diode chip with both electroluminescence and photoluminescence forms, and are obtained through packaging. There are multiple packaging methods, the packaging process is simple, the driving method is simple, the control method is simple, which is convenient for cost control, and at the same time, it is easy to obtain the lighting spectrum in the lighting structure provided by this application. In addition, the sizes of the multi-wavelength chip and the light-emitting diode chip group can be flexibly adjusted to reduce costs, improve reliability and service life.

[0062] In the lighting structure provided by this application, the bands corresponding to the light generated by the lighting structure include the cyan band and / or the green band, that is, at least one of cyan light and green light is included in the lighting source, and human-centered healthy lighting (including human-centered full-spectrum lighting and human-centered non-full-spectrum lighting) can be realized by mimicking natural sunlight to improve the body function. Among them, in the first lighting mode, the lighting source contains green light. Taking into full consideration the scotopic and photopic visions, the green light that makes the human eye most relaxed under scotopic and photopic visions is selected to effectively prevent or further progress myopia; it does not contain cyan light, ensuring a very low M / P ratio, promoting the secretion of melatonin, promoting the relaxation of body and mind, promoting sleep, and protecting and repairing the human body rhythm. In the second lighting mode, the lighting source contains cyan light, ensuring a very high M / P ratio, inhibiting the secretion of melatonin, being able to stimulate human vitality for a long time, promoting the improvement of human efficiency in learning, working, etc., and the lighting source contains little or no green light. In the third lighting mode, when the lighting source contains both cyan light and green light, eye protection and a very high M / P ratio can be considered at the same time, and myopia can be prevented while promoting the improvement of human efficiency in learning, working, etc.

[0063] The lighting structure in the embodiment of this application can also be combined with a mosquito repellent structure to increase the mosquito repellent function. In this way, mosquitoes are prevented from entering the working area to form interference, and mosquitoes are prevented from entering the lamp, which is convenient for cleaning and maintenance.

[0064] To make the purpose, technical solutions and advantages of this application clearer, the technical solutions in the preferred embodiments of this application will be described in more detail below with reference to the accompanying drawings in the preferred embodiments of this application. In the drawings, the same or similar reference numerals represent the same or similar components or components with the same or similar functions from beginning to end. The described embodiments are part of the embodiments of this application, rather than all of the embodiments.

[0065] The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present application, and should not be construed as limiting the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the scope of protection of the present application. The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0066] An embodiment of the present application provides a lighting device, including a lighting structure that generates a lighting light source and can be used for indoor lighting and outdoor lighting, especially suitable for indoor lighting. The lighting device can be a table lamp, an indoor large street lamp, a bedside lamp, a night light, etc. The lighting structure can have one lighting mode, or can integrate two or three lighting modes. The first lighting mode is a sleep mode mainly for enhancing melatonin secretion; the second lighting mode is a wakefulness mode mainly for stimulating human vitality; the third lighting mode is a working mode that both improves alertness and reduces visual fatigue. Exemplarily, the lighting structure of the table lamp can only have the third lighting mode, or can have all three lighting modes at the same time, and select the required mode according to different occasions and times.

[0067] Referring to Figure 1 , the lighting structure includes at least one light-emitting diode chip MC. The light-emitting diode chip MC includes an N-type semiconductor layer 101, a P-type semiconductor layer 104, and a first light-emitting layer 103 and a second light-emitting layer 102 disposed between the N-type semiconductor layer 101 and the P-type semiconductor layer 104. The first light-emitting layer 103 is located on the side of the second light-emitting layer 102 closer to the P-type semiconductor layer 104. The first light-emitting layer 103 generates light of at least one wavelength band in an electroluminescent manner, and the light generated by the first light-emitting layer 103 excites the second light-emitting layer 102 to generate light of at least one wavelength band. Each wavelength band of light includes at least one wavelength. The wavelength band corresponding to the light generated by the lighting structure includes a cyan wavelength band and / or a green wavelength band.

[0068] It can be understood that the lighting structure includes one or more light-emitting diode chips MC, and the light-emitting diode chip MC is a multi-wavelength chip, that is, it has at least two wavelengths. The shape of the light-emitting diode chip MC can be rectangular, square, circular, oval, triangular, rhombic, parallelogram, or other polygons, etc. Each light-emitting diode chip MC correspondingly includes an N-type semiconductor layer 101, a P-type semiconductor layer 104, a first light-emitting layer 103, and a second light-emitting layer 102. The first light-emitting layer 103 and the second light-emitting layer 102 are stacked, and the first light-emitting layer 103 is located on the side of the second light-emitting layer 102 closer to the P-type semiconductor layer 104, that is, the first light-emitting layer 103 is closer to the P-type semiconductor layer 104, and the second light-emitting layer 102 is closer to the N-type semiconductor layer 101.

[0069] Among them, the holes output by the P-type semiconductor layer 104 and the electrons output by the N-type semiconductor layer 101 recombine within the first light-emitting layer 103, causing the first light-emitting layer 103 to generate light of at least one wavelength band in an electroluminescence (EL) manner. The holes output by the P-type semiconductor layer 104 cannot reach the second light-emitting layer 102, and the second light-emitting layer 102 cannot emit light through electroluminescence. The light of the first wavelength band generated by the first light-emitting layer 103 is transmitted into the second light-emitting layer 102, exciting the second light-emitting layer 102, causing the second light-emitting layer 102 to generate light of at least one wavelength band in a photoluminescence (PL) manner.

[0070] It can be understood that when the first light-emitting layer 103 generates light of one wavelength, there is only one light-emitting mechanism, electroluminescence, in the first light-emitting layer 103. When the first light-emitting layer 103 generates light of at least two wavelengths, the minimum wavelength will excite the photoluminescence of the material with a longer wavelength, causing there to be two light-emitting mechanisms, electroluminescence and photoluminescence, in the first light-emitting layer 103. The holes in the P-type semiconductor layer 104 are difficult to transmit to the second light-emitting layer 102, and there is only one light-emitting mechanism, photoluminescence, in the second light-emitting layer 102.

[0071] In this way, the light-emitting diode chip MC has two forms of electroluminescence and photoluminescence, making the stability of the spectral energy distribution of the lighting structure good with respect to current changes. The second light-emitting layer 102 that emits light through photoluminescence is located between the N-type semiconductor layer 101 and the P-type semiconductor layer 104. The second light-emitting layer 102 can release stress in advance, improving the external quantum efficiency of the first light-emitting layer 103. At the same time, the second light-emitting layer 102 itself has good crystal quality and can reflect and absorb multiple times between the N-type semiconductor layer 101 and the P-type semiconductor layer 104, and the external quantum efficiency of the second light-emitting layer 102 can also be improved, enabling the wavelengths generated by the first light-emitting layer 103 and the second light-emitting layer 102 to have a higher external quantum efficiency compared to traditional LEDs.

[0072] Among them, each wavelength band of light can include multiple wavelengths, the number of wavelengths included is greater than or equal to 1 and less than or equal to 10, the number of wavelengths in different wavelength bands of light can be equal or unequal, and the wavelength bands generated by the first light-emitting layer 103 and the second light-emitting layer 102 can be the same or different. For example, Figure 1As shown, the first light-emitting layer 103 generates light of one band, which is the blue band, and the light of this band includes one wavelength. The second light-emitting layer 102 generates light of two bands, namely the blue band and the yellow band. One of the bands is the same as the band generated by the first light-emitting layer 103, and the light of this band includes one wavelength; the other band is different from the band generated by the first light-emitting layer 103, and the light of this band includes one wavelength. By obtaining multiple wavelengths in a single light-emitting diode chip, the continuity of the spectrum can be improved.

[0073] In this way, the number of wavelengths, specific wavelengths, peak wavelengths and full-width at half-maximum of different wavelengths, and the light intensity ratio of different wavelengths of the light-emitting diode chip MC can be selected according to needs, realizing various lighting methods, enabling the spectral design of each lighting to break through the limitations of traditional light-emitting diode chips, fully considering the rhythm impact under light and dark vision, and achieving ultra-low blue light and ultra-high luminous efficiency. At the same time, using this multi-wavelength light-emitting diode chip combining electro-luminescence and photo-luminescence, the driving method is simple, the packaging process is simple, and the control method is simple, which is convenient for cost control and easy to obtain a full-spectrum lighting spectrum. In addition, the sizes of the multi-wavelength chip and the light-emitting diode chip group can be flexibly adjusted to reduce costs, improve reliability and service life.

[0074] Refer to Figure 2 and Figure 3 , the light-emitting diode chip MC is in the B3G form, that is, the light-emitting diode chip MC generates three wavelengths in the blue band and one wavelength in the green band. Among them, at least one wavelength in the blue band is generated by the first light-emitting layer, and the wavelength in the green band is generated by the second light-emitting layer. The spectrum of this light-emitting diode chip MC is as Figure 3 shown.

[0075] Refer to Figure 4 and Figure 5 , the light-emitting diode chip MC is in the BC form, that is, the light-emitting diode chip MC generates one wavelength in the blue band and one wavelength in the green band. Among them, the wavelength in the blue band is generated by the first light-emitting layer 103, and the wavelength in the green band is generated by the second light-emitting layer 102. The spectrum of this light-emitting diode chip MC is as Figure 5 shown.

[0076] Refer to Figure 6 and Figure 7 , the light-emitting diode chip MC is in the B3CG form, that is, the light-emitting diode chip MC generates three wavelengths in the blue band, one wavelength in the cyan band, and one wavelength in the green band. Among them, at least one wavelength in the blue band is generated by the first light-emitting layer, and the wavelength in the green band is generated by the second light-emitting layer. The spectrum of this light-emitting diode chip MC is as Figure 7 shown.

[0077] In some preferred embodiments, the number of wavelengths in each band is greater than or equal to 4 to obtain a spectrum with better continuity. Further, the wavelengths of the light rays in the same band are arranged in ascending order of magnitude, and the difference between two adjacent wavelengths is greater than or equal to 5 nm and less than or equal to 60 nm. For example, in the band of 420 nm - 480 nm, the difference between two adjacent wavelengths is 15 nm.

[0078] The band generated by the first light-emitting layer 103 includes one of a purple band, a blue band, a cyan band, or a green band, and the light rays of the second band include one of a purple band, a blue band, a cyan band, a green band, a yellow band, a red band, or an infrared band. At least one wavelength of the light rays generated by the first light-emitting layer 103 is less than each wavelength of the light rays generated by the second light-emitting layer 102. In this way, the light rays generated by the first light-emitting layer 103 can excite the second light-emitting layer 102 to emit light.

[0079] In some preferred embodiments, the band corresponding to the light rays generated by the first light-emitting layer 103 is a purple band and / or a blue band, that is, the electro-luminescent first light-emitting layer 103 generates purple light and / or blue light. Further, the band corresponding to the light rays generated by the first light-emitting layer 103 can also be a cyan band or a green band, that is, on the basis of generating purple light and / or blue light, the electro-luminescent first light-emitting layer 103 can further generate cyan light and / or green light.

[0080] Among them, the wavelength range of the purple band is 400 nm - 420 nm, the wavelength range of the blue band is 420 nm - 480 nm, the wavelength range of the cyan band is 480 nm - 510 nm, the wavelength range of the green band is 510 nm - 565 nm, the wavelength range of the yellow band is 565 nm - 590 nm, the wavelength range of the red band is 590 nm - 740 nm, and the wavelength range of the infrared band is 740 nm - 1.7 μm.

[0081] It can be understood that the light rays in the purple band are purple light with a purple color; the light rays in the blue band are blue light with a blue color; the light rays in the cyan band are cyan light with a cyan color; the light rays in the green band are green light with a green color; the light rays in the yellow band are yellow light with a yellow color; the light rays in the red band are red light with a red color; the light rays in the infrared band are infrared rays with a colorless color.

[0082] In this way, the light-emitting diode chip MC can contain a total of n colors, where 1 ≤ n ≤ 7. Among them, the electroluminescence mechanism contains a colors, and the photoluminescence mechanism contains b colors, where 1 ≤ a ≤ 4 and 2 ≤ b ≤ 7. Here, the colors correspond to wavelength bands. For example, blue corresponds to the blue wavelength band, and its wavelength range is 420 - 470 nm. For the convenience of description and representation, in the following examples, the purple wavelength band is represented by A, the blue wavelength band is represented by B, the cyan wavelength band is represented by C, the green wavelength band is represented by G, the yellow wavelength band is represented by Y, the red wavelength band is represented by R, and the infrared wavelength band is represented by IR.

[0083] Furthermore, the wavelength bands corresponding to the light generated by the first light-emitting layer 103 of at least one light-emitting diode chip include the blue wavelength band and / or the purple wavelength band, that is, the lighting source at least contains one of blue light and purple light. In this way, on the one hand, the spectral continuity of the lighting source can be improved, and on the other hand, the wavelength range of the wavelength bands corresponding to the light generated by the first light-emitting layer 103 is relatively small, which is convenient for exciting the second light-emitting layer 102 to emit light.

[0084] In the embodiments of the present application, the wavelength bands corresponding to the light generated by the lighting structure include the cyan wavelength band and / or the green wavelength band, that is, the lighting source at least contains one of cyan light and green light. In the first lighting mode, the lighting source contains green light. Considering the scotopic and photopic vision, the green light that is the most relaxing for the human eye under scotopic and photopic vision is selected to effectively prevent myopia or further progression of myopia; it does not contain cyan light, ensuring an extremely low M / P ratio, promoting melatonin secretion, promoting physical and mental relaxation, promoting sleep, and protecting and repairing the human rhythm. In the second lighting mode, the lighting source contains cyan light, ensuring an extremely high M / P ratio, inhibiting melatonin secretion, being able to stimulate human vitality for a long time, promoting the improvement of human learning and work efficiency, etc., and the lighting source does not contain or contains little green light. In the third lighting mode, when the lighting source contains both cyan light and green light, it is possible to consider eye protection and an extremely high M / P ratio at the same time, promoting the improvement of human learning and work efficiency, etc., while preventing myopia.

[0085] For example, in the first lighting scheme, the lighting source includes the wavelengths of three blue wavelength bands and one green wavelength band, and its spectrum is as Figure 8 shown. Also, for example, in the second lighting scheme, the lighting source includes the wavelength of one blue wavelength band and the wavelength of one cyan wavelength band, and its spectrum is as Figure 9 shown. Again, for example, in the third lighting scheme, the lighting source includes the wavelengths of three blue wavelength bands, the wavelength of one cyan wavelength band, and the wavelength of one green wavelength band, and its spectrum is as Figure 10 shown.

[0086] As a first possible embodiment, the wavelength band corresponding to the light generated by the lighting structure includes and emphasizes the green wavelength band, does not include the cyan wavelength band, or the energy of the cyan wavelength band is less than one-tenth of the energy of the green wavelength band, and also includes at least one of the blue wavelength band and the purple wavelength band, and at least one of the red wavelength band and the yellow wavelength band, to achieve the first lighting mode. The lighting source contains green light, fully considering the photopic and scotopic vision, and selects the green light that is the most relaxing for the human eye in photopic and scotopic vision, effectively preventing and controlling myopia or further progression of myopia; it does not contain cyan light or contains very little cyan light, ensuring an extremely low M / P ratio, promoting the secretion of melatonin, promoting physical and mental relaxation, promoting sleep, and protecting and repairing the human rhythm.

[0087] When the wavelength band corresponding to the light generated by the lighting structure includes the blue wavelength band, the hazard level of the light in the blue wavelength band is better than RG0 level (i.e., no danger). The light generated by the lighting structure has low blue light and high green light, that is, high green light energy and low or even no blue light energy, which can reduce blue light damage and reduce eye fatigue. Among them, the evaluation criteria for the hazard level are the national photobiological safety IEC62471 and GB / T 20145 standards.

[0088] In some possible implementation manners, the wavelength band corresponding to the light generated by the lighting structure includes the green wavelength band, the purple wavelength band, and the yellow wavelength band, does not include the cyan wavelength band, and does not include the blue wavelength band, that is, the wavelength band generated by the lighting structure is in the form of Ax+Gy+Yz, where x, y, and z are the number of wavelengths in the corresponding wavelength bands, and the values are all greater than or equal to 1. In this way, the lighting source contains green light, purple light, and yellow light, does not contain cyan light and blue light, and the corresponding spectrum forms a blue-light-free spectrum.

[0089] In some other possible implementation manners, the wavelength band corresponding to the light generated by the lighting structure includes the green wavelength band, the blue wavelength band, the yellow wavelength band, and the red wavelength band, does not include the cyan wavelength band, that is, the wavelength band generated by the lighting structure is in the form of Bx+Gy+Yz+Rm, where m is the number of wavelengths in the corresponding wavelength band, and the value is greater than or equal to 1. In this way, the lighting source contains green light, blue light, yellow light, and red light, does not contain cyan light and blue light, and the corresponding spectrum forms a spectrum with low blue light and high luminous efficiency.

[0090] It can be understood that the wavelength band corresponding to the light generated by the lighting structure can be in the forms of Bx+Gy+Rz, Bx+Gy+Yz, Ax+Gy+Rz, Ax+Gy+Yz+Rm, Ax+By+Gz+Rm, Ax+By+Gz+Ym, Ax+By+Gz+Ym+Rn, etc. Among them, n is the number of wavelengths in the corresponding wavelength band, and the value is greater than or equal to 1.

[0091] In other possible implementation manners, other wavelength bands can be added to the light generated by the lighting structure according to actual requirements. Exemplarily, the wavelength band corresponding to the light generated by the lighting structure further includes an infrared band. Correspondingly, the wavelength band generated by the lighting structure can be in the forms of Ax+By+Gz+Rm+IRn, Ax+By+Gz+Ym+IRn, Ax+By+Gz+Ym+Rn+IRk, Ax+Gy+Rz+IRm, Ax+Gy+Yz+IRm, Ax+Gy+Yz+Rm+IRn, Bx+Gy+Rz+IRm, Bx+Gy+Yz+IRm, Bx+Gy+Yz+Rm+IRn, etc.

[0092] It should be noted that in the above implementation manner, the number of wavelengths of the light in the blue wavelength band generated by the lighting structure can be less than or equal to 1, that is, the lighting source does not contain or contains little blue light, forming a non-full spectrum. The number of wavelengths of the light in the blue wavelength band generated by the lighting structure can also be greater than or equal to 2. In this way, the lighting source can form a full-spectrum light source, and the spectrum of the lighting source is continuous, being closer to natural light (the reflected and scattered light of sunlight in nature).

[0093] In the above embodiment, the ratio of the optical power of the light in the green wavelength band to the sum of the optical powers of the light in the blue wavelength band and the purple wavelength band is equal to 3, forming low-blue or blue-free lighting. It can be understood that when the wavelength band corresponding to the light generated by the lighting structure includes the blue wavelength band and does not include the purple wavelength band, the ratio of the optical power of the light in the green wavelength band to the sum of the optical powers of the light in the blue wavelength band and the purple wavelength band is the ratio of the optical power of the light in the green wavelength band to the optical power of the light in the blue wavelength band, that is, G:B>3. When the wavelength band corresponding to the light generated by the lighting structure includes the purple wavelength band and does not include the blue wavelength band, the ratio of the optical power of the light in the green wavelength band to the sum of the optical powers of the light in the blue wavelength band and the purple wavelength band is the ratio of the optical power of the light in the green wavelength band to the optical power of the light in the purple wavelength band, that is, G:A>3. When the wavelength band corresponding to the light generated by the lighting structure includes the blue wavelength band and the purple wavelength band, the ratio of the optical power of the light in the green wavelength band to the sum of the optical powers of the light in the blue wavelength band and the purple wavelength band, that is, G:(A + B)>3.

[0094] The ratio of the optical power of the light in the green wavelength band to the optical power of the light in the red wavelength band / yellow wavelength band is greater than 1. Among them, when the wavelength band corresponding to the light generated by the lighting structure includes the red wavelength band, the ratio of the optical power of the light in the green wavelength band to the optical power of the light in the red wavelength band is greater than 1. When the wavelength band corresponding to the light generated by the lighting structure includes the yellow wavelength band, the ratio of the optical power of the light in the green wavelength band to the optical power of the light in the yellow wavelength band is greater than 1. When the wavelength band corresponding to the light generated by the lighting structure includes the red wavelength band and the yellow wavelength band, the ratio of the optical power of the light in the green wavelength band to the optical power of the light in the red wavelength band is greater than 1, or the ratio of the optical power of the light in the green wavelength band to the optical power of the light in the yellow wavelength band is greater than 1.

[0095] As a second embodiment, the wavelength band corresponding to the light generated by the lighting structure includes and highlights the cyan wavelength band; it also includes the yellow wavelength band, and / or also includes the green and red wavelength bands, forming a second lighting mode. The lighting source contains cyan light, ensuring an extremely high M / P ratio, suppressing melatonin secretion, being able to stimulate human vitality for a long time, and promoting the improvement of human efficiency in learning, working, etc. The lighting source contains little or no green light. In this way, the light generated by the lighting structure has the characteristics of low blue light and high cyan light, that is, the cyan light energy is high, and the blue light energy is low or even absent, which can reduce blue light damage and increase alertness.

[0096] In a possible example, the wavelength band corresponding to the light generated by the lighting structure includes the cyan wavelength band and the yellow wavelength band. The wavelength band generated by the lighting structure is in the form of Cx+Yy, and the lighting source contains cyan light and yellow light and no green light. In some other possible examples, the wavelength band corresponding to the light generated by the lighting structure includes the cyan wavelength band, the green wavelength band, and the red wavelength band, and the ratio of the optical power of the cyan wavelength band light to the green wavelength band light is less than or equal to 0.1. The wavelength band generated by the lighting structure is in the form of Cx+Gy+Rz, that is, the lighting source contains cyan light, green light, and red light and contains little green light.

[0097] Optionally, other wavelength bands can also be added to the light generated by the lighting structure according to actual needs. Exemplarily, the wavelength band corresponding to the light generated by the lighting structure further includes at least one of the infrared wavelength band and the blue wavelength band to improve the continuity of the lighting source spectrum. Exemplarily, the wavelength band generated by the lighting structure can be in the forms of Bx+Cy+Yz, Bx+Cy+Yz+Gm+Rn+IRk, etc.

[0098] In the above embodiment, the proportion of the optical power of the cyan wavelength band light to the yellow wavelength band light is greater than 1, that is, C:Y is greater than 1. Or, the ratio of the optical power of the cyan wavelength band light to the green / red wavelength band light is greater than 1.5. Among them, when the wavelength band corresponding to the light generated by the lighting structure includes the green wavelength band, the ratio of the optical power of the cyan wavelength band light to the green wavelength band light is greater than 1.5, that is, C:G is greater than 1.5. When the wavelength band corresponding to the light generated by the lighting structure includes the red wavelength band, the ratio of the optical power of the cyan wavelength band light to the red wavelength band light is greater than 1.5, that is, C:R is greater than 1.5. When the wavelength band corresponding to the light generated by the lighting structure includes the green wavelength band and the red wavelength band, the ratio of the optical power of the cyan wavelength band light to the green wavelength band light is greater than 1.5, or the ratio of the optical power of the cyan wavelength band light to the red wavelength band light is greater than 1.5.

[0099] It should be noted that the number of wavelengths of the light in the blue band generated by the lighting structure can be less than or equal to 1, that is, the lighting source contains little or no blue light, forming a non-full spectrum. The number of wavelengths of the light in the blue band generated by the lighting structure can also be greater than or equal to 2. In this way, the lighting source can form a full-spectrum light source, and the spectrum of the lighting source is continuous, being closer to natural light (the reflected and scattered light of sunlight in nature).

[0100] As a third embodiment, the wavelength bands corresponding to the light generated by the lighting structure include and highlight the cyan band and the green band, and also include at least one of the yellow band and the red band, forming a third lighting method. When the lighting source contains both cyan light and green light, both eye protection and an extremely high M / P ratio can be considered, promoting the human body to improve learning and work efficiency while preventing myopia. In this way, the light generated by the lighting structure has the characteristics of low blue light, high cyan light, and high green light, that is, high cyan light energy, high green light energy, and low or even no blue light energy, which can reduce blue light damage, improve alertness, and reduce eye fatigue.

[0101] It should be noted that the third lighting method contains and highlights the green band, and also contains the yellow band and / or the red band. The second lighting method contains little or no green band. The types of light in these two lighting methods can be the same, but the ratio of the optical power of the light in the cyan band to the light in the green band is different. The third lighting method has relatively more green light, while the second lighting method contains little or no green light.

[0102] In some possible implementation manners, the wavelength bands corresponding to the light generated by the lighting structure include the cyan band and the green band, and also include the red band. The wavelength band generated by the lighting structure is in the form of Cx+Gy+Yz. The lighting source contains cyan light, green light, and red light. Among them, the ratio of the optical power of the light in the cyan band to the light in the green band is 0.1-3, that is, C:G is 0.1-3.

[0103] In some other possible implementation manners, the wavelength bands corresponding to the light generated by the lighting structure include the cyan band and the green band, and also include the yellow band and the red band. The wavelength band generated by the lighting structure is in the form of Cx+Gy+Yz+Rm. The lighting source contains cyan light, green light, yellow light, and red light. The ratio of the optical power of the light in the cyan band to the light in the yellow band / red band is greater than 0.7; the ratio of the optical power of the light in the green band to the light in the yellow band / red band is greater than 0.7.

[0104] When the wavelength band corresponding to the light generated by the lighting structure includes the red wavelength band, the ratio of the optical power of the light in the cyan wavelength band to the light in the red wavelength band is greater than 0.7, that is, C:R is greater than 0.7. When the wavelength band corresponding to the light generated by the lighting structure includes the yellow wavelength band, the ratio of the optical power of the light in the cyan wavelength band to the light in the yellow wavelength band is greater than 0.7, that is, C:Y is greater than 0.7. When the wavelength band corresponding to the light generated by the lighting structure includes both the red wavelength band and the yellow wavelength band, the ratio of the optical power of the light in the cyan wavelength band to the light in the red wavelength band is greater than 0.7, or the ratio of the optical power of the light in the cyan wavelength band to the light in the yellow wavelength band is greater than 0.7.

[0105] Moreover, when the wavelength band corresponding to the light generated by the lighting structure includes the red wavelength band, the ratio of the optical power of the light in the green wavelength band to the light in the red wavelength band is greater than 0.7, that is, G:R is greater than 0.7. When the wavelength band corresponding to the light generated by the lighting structure includes the yellow wavelength band, the ratio of the optical power of the light in the green wavelength band to the light in the yellow wavelength band is greater than 0.7, that is, G:Y is greater than 0.7. When the wavelength band corresponding to the light generated by the lighting structure includes both the red wavelength band and the yellow wavelength band, the ratio of the optical power of the light in the green wavelength band to the light in the red wavelength band is greater than 0.7, or the ratio of the optical power of the light in the green wavelength band to the light in the yellow wavelength band is greater than 0.7.

[0106] Optionally, other wavelength bands can be added to the light generated by the lighting structure according to actual needs. Exemplarily, the wavelength band corresponding to the light generated by the lighting structure further includes at least one of the infrared wavelength band and the blue wavelength band to improve the spectral continuity of the lighting source. Exemplarily, the wavelength band generated by the lighting structure can be in the forms of Bx+Cy+Gz+Ym, Bx+Cy+Yz+Gm+Rn+IRk, etc.

[0107] It should be noted that the number of wavelengths of the light in the blue wavelength band generated by the lighting structure can be less than or equal to 1, that is, the lighting source does not contain or contains little blue light, forming a non-full spectrum. The number of wavelengths of the light in the blue wavelength band generated by at least one light-emitting diode chip can also be greater than or equal to 2. In this way, the lighting source can form a full-spectrum light source, and the spectrum of the lighting source is continuous and closer to natural light (the reflected and scattered light of sunlight in nature).

[0108] To implement the above three lighting methods, the lighting structure has various packaging forms, which will be described below with reference to the accompanying drawings.

[0109] In a possible embodiment, the lighting structure includes a light-emitting diode chip, and the light generated by the light-emitting diode chip forms an illumination light source. In this way, a single light-emitting diode chip with multiple wavelengths can obtain the required illumination light source. The cost of a single multi-wavelength light-emitting diode chip is lower than the total cost of multiple multi-wavelength light-emitting diode chips, and is also lower than the total cost of traditional single-wavelength light-emitting diode chips and multiple phosphors, which can reduce the production cost of the lighting structure.

[0110] Among them, the light generated by the first light-emitting layer is at least one of violet light, blue light, cyan light, and green light, and the light generated by the second light-emitting layer is at least one of violet light, blue light, cyan light, green light, yellow light, red light, and infrared light. The light generated by the first light-emitting layer can be included in the types of light generated by the second light-emitting layer and have different wavelengths to improve the continuity of the corresponding light wavelengths, or can be different from the light generated by the second light-emitting layer to enrich the types of light.

[0111] In the first lighting mode, the light generated by a light-emitting diode chip includes light in the green band, does not include light in the cyan band, and also includes at least one of light in the blue band and the violet band, and at least one of light in the red band and the yellow band. For example, the light generated by a light-emitting diode chip includes blue light, green light, and yellow light, or includes violet light, green light, and yellow light, or includes blue light, green light, and red light, or includes violet light, green light, and red light, or includes violet light, blue light, green light, and red light, or includes violet light, blue light, green light, and yellow light, and so on.

[0112] Among them, the light-emitting diode chip can be in the forms of BxGyRz, BxGyYz, BxGyYzRm, BxGyRzIRm, BxGyYzRmIRn, AxGyRz, AxByGzYm, AxByGzYmRnIRk, etc. Refer to Figure 11 , taking the light-emitting diode chip in the form of BxGyRz as an example, the light generated by the first light-emitting layer 103 can be in the form of Bx, and the light generated by the second light-emitting layer 102 can be in the form of GyRz; or, refer to Figure 12 , the light generated by the first light-emitting layer 103 can be in the form of BxGy, and the light generated by the second light-emitting layer 102 can be in the form of Rz.

[0113] In the second lighting mode, the light generated by a light-emitting diode chip includes light in the cyan band; it also includes light in the yellow band, and / or also includes light in the green band and the red band. For example, the light generated by a light-emitting diode chip includes cyan light and yellow light, or includes cyan light, red light, and green light.

[0114] Among them, the light-emitting diode chip can be in the forms of CxYy, CxGyRz, BxCyYz, BxCyGzRm, AxCyGzRm, etc. Taking the light-emitting diode chip in the form of BxCyGzRm as an example, the light generated by the first light-emitting layer can be in the form of Bx, and the light generated by the second light-emitting layer can be in the form of CyGzRm; or, the light generated by the first light-emitting layer can be in the form of BxCy, and the light generated by the second light-emitting layer can be in the form of GzRm; or, the light generated by the first light-emitting layer can be in the form of BxCyGz, and the light generated by the second light-emitting layer can be in the form of Rm.

[0115] In the third lighting mode, the wavelength band corresponding to the light generated by one light-emitting diode chip includes a cyan band and a green band, and also includes at least one of a yellow band and a red band. For example, the light generated by one light-emitting diode chip includes cyan light and yellow light, or includes cyan light, green light, and red light, etc. Among them, the light-emitting diode chip can be in the forms of CxGyYz, CxGyRz, BxCyGzYm, BxCyYzGmRnIRk, etc.

[0116] In some other possible embodiments, the lighting structure includes at least two light-emitting diode chips, and the light generated by the at least two light-emitting diode chips is mixed to form a lighting source, and multiple light-emitting diode chips with multiple wavelengths obtain the required lighting source.

[0117] In the first lighting mode, each light-emitting diode chip does not contain light in the cyan band, and all the light generated by at least two light-emitting diode chips includes light in the green band, and also includes at least one of light in the blue band and the purple band, and at least one of light in the red band and the yellow band. For example, the light generated by each light-emitting diode chip does not include cyan light, and all the light generated by these light-emitting diode chips includes blue light, green light, and yellow light, or includes purple light, green light, and yellow light; or includes blue light, green light, and red light; or includes purple light, green light, and red light, and so on.

[0118] In some possible implementation manners, the lighting structure includes two light-emitting diode chips. Both of the two light-emitting diode chips do not contain light in the cyan band. The two light-emitting diode chips generate light in the green band, and also generate light in the blue band and / or the purple band, and light in the red band and / or the yellow band. Exemplarily, refer to Figure 13, the light-emitting diode chip MC1 is in the form of BxBy, and the light-emitting diode chip MC2 is in the form of GxYy. Additionally, by way of example, the light-emitting diode chip MC1 is in the form of AxBy, and the light-emitting diode chip MC2 is in the form of GxRy. Of course, these two light-emitting diode chips may also include light of other wavelength bands. For example, the light-emitting diode chip MC1 is in the form of AxGy, and the light-emitting diode chip MC2 is in the form of GxRyIRz.

[0119] In some possible implementation manners, the lighting structure includes three light-emitting diode chips. None of the three light-emitting diode chips includes light in the cyan wavelength band. The three light-emitting diode chips generate light in the green wavelength band, and also generate light in the blue wavelength band and / or the purple wavelength band, and light in the red wavelength band and / or the yellow wavelength band. By way of example, refer to Figure 14 , the light-emitting diode chip MC1 is in the form of AxAy, the light-emitting diode chip MC2 is in the form of GxGy, and the light-emitting diode chip MC3 is in the form of BxYy. Of course, these three light-emitting diode chips may also include light of other wavelength bands. For example, the light-emitting diode chip MC1 is in the form of AxYy, the light-emitting diode chip MC2 is in the form of GxRy, and the light-emitting diode chip MC3 is in the form of BxIRy.

[0120] In the second lighting mode, the light generated by at least two light-emitting diode chips includes light in the cyan wavelength band; it also includes light in the yellow wavelength band, and / or, it also includes light in the green wavelength band and the red wavelength band. For example, the light generated by two light-emitting diode chips includes cyan light and yellow light, or includes cyan light, red light, and green light.

[0121] In some possible implementation manners, the lighting structure includes two light-emitting diode chips. The two light-emitting diode chips generate light in the cyan wavelength band, and generate light in the yellow wavelength band, and / or, generate light in the green wavelength band and the red wavelength band. By way of example, refer to Figure 15 , the light-emitting diode chip MC1 is in the form of CxYy, and the light-emitting diode chip MC2 is in the form of GxRy. Of course, these two light-emitting diode chips may also include light of other wavelength bands. For example, the light-emitting diode chip MC1 is in the form of BxCy, and the light-emitting diode chip MC2 is in the form of GxRyIRz.

[0122] In some other possible implementation manners, the lighting structure includes three light-emitting diode chips. The three light-emitting diode chips generate light in the cyan wavelength band, and generate light in the yellow wavelength band, and / or, generate light in the green wavelength band and the red wavelength band. By way of example, refer to Figure 16, the light-emitting diode chip MC1 is in the form of GxYy, the light-emitting diode chip MC2 is in the form of GxRy, and the light-emitting diode chip MC3 is in the form of CxCy. Of course, these two light-emitting diode chips can also include light of other wavelengths. For example, the light-emitting diode chip MC1 is in the form of BxCy, the light-emitting diode chip MC2 is in the form of AxRy, and the light-emitting diode chip MC3 is in the form of GxIRy.

[0123] In the third lighting mode, the light generated by at least two light-emitting diode chips includes light in the cyan and green wavelength bands, and also includes at least one of the yellow and red wavelength bands. For example, the light generated by at least two light-emitting diode chips includes cyan light and yellow light, or includes cyan light, green light, and red light, etc.

[0124] In some possible implementation manners, the lighting structure includes two light-emitting diode chips, and all the light generated by the two light-emitting diode chips includes cyan light and green light, and also includes yellow light and / or red light. Exemplarily, refer to Figure 17 , the light-emitting diode chip MC1 is in the form of CxCy, and the light-emitting diode chip MC2 is in the form of GxRy. Of course, these two light-emitting diode chips can also include light of other wavelengths. For example, the light-emitting diode chip MC1 is in the form of BxCy, and the light-emitting diode chip MC2 is in the form of GxRyIRz.

[0125] In some other possible implementation manners, the lighting structure includes three light-emitting diode chips, and all the light generated by the three light-emitting diode chips includes cyan light and green light, and also includes yellow light and / or red light. Exemplarily, refer to Figure 18 , the light-emitting diode chip MC1 is in the form of CxYy, the light-emitting diode chip MC2 is in the form of GxGy, and the light-emitting diode chip MC3 is in the form of CxRy. Of course, these two light-emitting diode chips can also include light of other wavelengths. For example, the light-emitting diode chip MC1 is in the form of BxCy, the light-emitting diode chip MC2 is in the form of BxGy, and the light-emitting diode chip MC3 is in the form of AxRy.

[0126] In still some other possible embodiments, the lighting structure further includes at least one single-wavelength chip that generates light of a single wavelength. For example, the single-wavelength chip can be in the form of R, G, B, Y, etc. At least one multi-wavelength light-emitting diode chip and at least one single-wavelength chip are mixed to obtain the required lighting source.

[0127] In the first lighting mode, each light-emitting diode chip and each single-wavelength chip do not contain light in the cyan band, and include the green band. Moreover, one or more light-emitting diode chips and one or more single-wavelength chips also include light in the blue band and / or purple band, as well as light in the red band and / or yellow band. For example, the light generated by each light-emitting diode chip and each single-wavelength chip does not include cyan light, and the light generated by one or more light-emitting diode chips and one or more single-wavelength chips includes blue light, green light, and yellow light, or includes purple light, green light, and yellow light; or includes blue light, green light, and red light; or includes purple light, green light, and red light, and so on.

[0128] Exemplarily, referring to Figure 19 , one single light-emitting diode chip and one single-wavelength chip are packaged. The light-emitting diode chip MC is in the form of BxGy, and the single-wavelength chip SC is in the form of Y. Also exemplarily, one or more light-emitting diode chips and one single-wavelength chip are packaged. For example, the light-emitting diode chip MC1 is in the form of BxBy, the light-emitting diode chip MC2 is in the form of GxYy, and the single-wavelength chip SC is in the form of R. Also for example, the light-emitting diode chip MC1 is in the form of GxRy, the light-emitting diode chip MC2 is in the form of GxYy, and the single-wavelength chip SC is in the form of B.

[0129] Still exemplarily, as Figure 20 shown, one single light-emitting diode chip and one or more single-wavelength chips are packaged. The light-emitting diode chip MC is in the form of BxYy, the single-wavelength chip SC1 is in the form of G, and the single-wavelength chip SC2 is in the form of R. Another exemplarily, one or more light-emitting diode chips and one or more single-wavelength chips are packaged. The light-emitting diode chip MC1 is in the form of BxYy, the light-emitting diode chip MC2 is in the form of AxYy, the single-wavelength chip SC1 is in the form of G, and the single-wavelength chip SC2 is in the form of R.

[0130] In the second lighting mode, the light generated by one or more light-emitting diode chips and one or more single-wavelength chips includes light in the cyan band; it also includes light in the yellow band, and / or also includes light in the green band and red band. For example, the light generated by one or more light-emitting diode chips and one or more single-wavelength chips includes cyan light and yellow light, or includes cyan light, red light, and green light.

[0131] Exemplarily, one single light-emitting diode chip and one single-wavelength chip are packaged. The light-emitting diode chip MC is in the form of CxCy, and the single-wavelength chip SC is in the form of Y. Also exemplarily, one or more light-emitting diode chips and one single-wavelength chip are packaged. For example, the light-emitting diode chip MC1 is in the form of CxCy, the light-emitting diode chip MC2 is in the form of GxGy, and the single-wavelength chip SC is in the form of R.

[0132] Exemplarily, a single light-emitting diode chip and multiple single-wavelength chips are packaged. The light-emitting diode chip MC is in the form of CxCy, the single-wavelength chip SC1 is in the form of G, and the single-wavelength chip SC2 is in the form of R. Another exemplarily, multiple light-emitting diode chips and multiple single-wavelength chips are packaged. The light-emitting diode chip MC1 is in the form of CxCy, the light-emitting diode chip MC2 is in the form of GxGy, the single-wavelength chip SC1 is in the form of Y, and the single-wavelength chip SC2 is in the form of R.

[0133] In the third lighting mode, the light generated by the single / multiple light-emitting diode chips and the single / multiple single-wavelength chips includes light in the cyan band and the green band, and also includes at least one of light in the yellow band and the red band. For example, the light of the single / multiple light-emitting diode chips and the single / multiple single-wavelength chips includes cyan light and yellow light, or includes cyan light, green light, and red light, etc.

[0134] Exemplarily, a single light-emitting diode chip and a single single-wavelength chip are packaged. The light-emitting diode chip MC is in the form of CxGy, and the single-wavelength chip SC is in the form of Y. Another exemplarily, multiple light-emitting diode chips and a single single-wavelength chip are packaged. For example, the light-emitting diode chip MC1 is in the form of CxCy, the light-emitting diode chip MC2 is in the form of GxGy, and the single-wavelength chip SC is in the form of R.

[0135] Exemplarily, a single light-emitting diode chip and multiple single-wavelength chips are packaged. The light-emitting diode chip MC is in the form of CxCy, the single-wavelength chip SC1 is in the form of G, and the single-wavelength chip SC2 is in the form of R. Another exemplarily, multiple light-emitting diode chips and multiple single-wavelength chips are packaged. The light-emitting diode chip MC1 is in the form of CxCy, the light-emitting diode chip MC2 is in the form of GxGy, the single-wavelength chip SC1 is in the form of Y, and the single-wavelength chip SC2 is in the form of R.

[0136] Of course, the single / multiple light-emitting diode chips in the above examples also include light in other bands, such as light in the purple band, blue band, and infrared band, to improve the spectral continuity of the lighting source. For example, in the third lighting mode, the light-emitting diode chip MC1 is in the form of BxCy, the light-emitting diode chip MC2 is in the form of AxYy, the single-wavelength chip SC1 is in the form of R, and the single-wavelength chip SC2 is in the form of G.

[0137] In another possible embodiment, refer to Figure 21, the lighting structure further includes a color conversion layer 105. The color conversion layer 105 is disposed on the light-emitting side of the light-emitting diode chip MC. The light generated by at least one light-emitting diode chip is mixed with the light generated by the color conversion layer 105 to form a lighting light source. The color conversion layer 105 can convert the color of the light generated by the light-emitting diode chip MC, for example, convert it into red light, yellow light, green light, etc.

[0138] Among them, the color conversion layer 105 includes at least one color conversion material, and the wavelengths of the light converted by each color conversion material are different. The color conversion material can be added to the encapsulant and set on the light-emitting surface of the light-emitting diode chip during encapsulation, or a film can be formed and attached to the light-emitting surface of the light-emitting diode chip. The color conversion material can be a quantum dot material or a fluorescent material, and the wavelength bands corresponding to the light converted by the color conversion material include a blue band, a green band, a cyan band, a yellow band, a red band, or an infrared band. For example, the color conversion material includes potassium fluorosilicate (KSF) phosphor (i.e., red phosphor), aluminate red phosphor, aluminate green phosphor, europium-doped blue phosphor, yellow phosphor, etc.

[0139] In the first lighting mode, the light generated by at least one light-emitting diode chip and the color conversion layer 105 does not contain light in the cyan band, and all the light generated by the light-emitting diode chip and the color conversion layer 105 includes a green band, and also includes light in the blue band and / or purple band, and light in the red band and / or yellow band. For example, the light generated by each light-emitting diode chip and the color conversion layer 105 does not include cyan light, and all the light generated by the light-emitting diode chip and the color conversion layer 105 includes blue light, green light, and yellow light, or includes purple light, green light, and yellow light; or includes blue light, green light, and red light; or includes purple light, green light, and red light, etc.

[0140] Exemplarily, a single light-emitting diode chip and the color conversion layer 105 are encapsulated, and the color conversion layer 105 generates light of one wavelength. Refer to Figure 22 , the light-emitting diode chip MC is in the form of BxGy, and the color conversion layer 105 is in the form of Y or R. Another exemplarily, multiple light-emitting diode chips and the color conversion layer 105 are encapsulated, and the color conversion layer 105 generates light of one wavelength. For example, the light-emitting diode chip MC1 is in the form of BxBy, the light-emitting diode chip MC2 is in the form of GxGy, and the single-wavelength chip SC is in the form of Y.

[0141] Another exemplarily, a single light-emitting diode chip and the color conversion layer 105 are encapsulated, and the color conversion layer 105 generates at least two wavelengths of light. Refer to Figure 23, the light-emitting diode chip MC is in the form of BxBy, and the color conversion layer 105 is in the form of G+R. Another example is that multiple light-emitting diode chips and the color conversion layer 105 are encapsulated. The color conversion layer 105 generates light of at least two wavelengths. The light-emitting diode chip MC1 is in the form of BxBy, the light-emitting diode chip MC2 is in the form of BxYy, and the color conversion layer 105 is in the form of G+R.

[0142] In the second lighting mode, the light generated by at least one light-emitting diode chip and the color conversion layer 105 includes light in the cyan band; it also includes light in the yellow band, and / or, it also includes light in the green band and the red band. For example, the light generated by a single / multiple light-emitting diode chips and a single / multiple single-wavelength chips includes cyan light and yellow light, or includes cyan light, red light, and green light.

[0143] Exemplarily, referring to Figure 24 , a single light-emitting diode chip and the color conversion layer 105 are encapsulated. The color conversion layer 105 generates light of one wavelength. The light-emitting diode chip MC is in the form of CxCy, and the color conversion layer 105 is in the form of Y. Another example is that multiple light-emitting diode chips and the color conversion layer 105 are encapsulated. The color conversion layer 105 generates light of one wavelength. For example, the light-emitting diode chip MC1 is in the form of CxCy, the light-emitting diode chip MC2 is in the form of BxBy, and the color conversion layer 105 is in the form of G+R.

[0144] Another example is that a single light-emitting diode chip and the color conversion layer 105 are encapsulated. The color conversion layer 105 generates light of at least two wavelengths. The light-emitting diode chip MC is in the form of CxCy, and the color conversion layer 105 is in the form of G+R. Another example is that multiple light-emitting diode chips and the color conversion layer 105 are encapsulated. The color conversion layer 105 generates light of at least two wavelengths. The light-emitting diode chip MC1 is in the form of GxGy, the light-emitting diode chip MC2 is in the form of CxCy, and the color conversion layer 105 is in the form of Y+R.

[0145] In the third lighting mode, the light generated by at least one light-emitting diode chip and the color conversion layer 105 includes light in the cyan band and the green band, and also includes at least one of the light in the yellow band and the red band. For example, the light generated by at least one light-emitting diode chip and the color conversion layer 105 includes cyan light and yellow light, or includes cyan light, green light, and red light, etc.

[0146] Exemplarily, a single light-emitting diode chip and the color conversion layer 105 are encapsulated. The color conversion layer 105 generates light of one wavelength. Referring to Figure 25, the light-emitting diode chip MC is in the form of CxGy, and the color conversion layer 105 is in the form of R. Additionally, by way of example, multiple light-emitting diode chips and the color conversion layer 105 are encapsulated. The color conversion layer 105 generates light of one wavelength. For example, the light-emitting diode chip MC1 is in the form of CxYy, the light-emitting diode chip MC2 is in the form of GxGy, and the single-wavelength chip SC is in the form of R.

[0147] Again, by way of example, a single light-emitting diode chip and the color conversion layer 105 are encapsulated. The color conversion layer 105 generates light of at least two wavelengths. The light-emitting diode chip MC is in the form of CxCy, and the color conversion layer 105 is in the form of G+R. Another example is that multiple light-emitting diode chips and the color conversion layer 105 are encapsulated. The color conversion layer 105 generates light of at least two wavelengths. The light-emitting diode chip MC1 is in the form of GxGy, the light-emitting diode chip MC2 is in the form of CxCy, and the color conversion layer 105 is in the form of Y+R.

[0148] Of course, in each of the above examples, the light generated by at least one light-emitting diode chip and the color conversion layer 105 may also include light in other wavelength bands, such as light in the purple band, blue band, and infrared band, to improve the spectral continuity of the illumination source. For example, in the second illumination mode, the light-emitting diode chip MC is in the form of BxCy, and the color conversion layer 105 is in the form of G+R; or the light-emitting diode chip MC is in the form of BxCyGz, and the color conversion layer 105 is in the form of R, etc.

[0149] In other embodiments, the illumination structure further includes at least one single-wavelength chip and the color conversion layer 105. The single-wavelength chip generates light of a single wavelength, and the color conversion layer 105 is disposed on the light-emitting side of the light-emitting diode chip and / or the single-wavelength chip. The single-wavelength chip generates light of a single wavelength, and the color conversion layer 105 can convert to generate light of at least one wavelength. The color conversion layer 105 can be disposed on the light-emitting side of the single-wavelength chip, can also be disposed on the light-emitting side of the light-emitting diode chip, or is disposed on both the light-emitting side of the single-wavelength chip and the light-emitting side of the light-emitting diode chip. The single-wavelength chip and the color conversion layer 105 can refer to the above embodiments and will not be elaborated here.

[0150] In the first illumination mode, the light generated by at least one light-emitting diode chip, at least one single-wavelength chip, and the color conversion layer 105 does not include light in the cyan band, and all the light includes the green band, and also includes light in the blue band and / or purple band, and light in the red band and / or yellow band. By way of example, referring to Figure 26 , the light-emitting diode chip MC is in the form of AxAy, the single-wavelength chip SC1 is in the form of G, the single-wavelength chip SC2 is in the form of B, and the color conversion layer 105 is in the form of R.

[0151] In the second lighting mode, the light rays generated by at least one light-emitting diode chip, at least one single-wavelength chip, and the color conversion layer 105 include light rays in the cyan band; further include light rays in the yellow band, and / or further include light rays in the green and red bands. Exemplarily, referring to Figure 27 , the light-emitting diode chip MC is in the form of CxCy, the single-wavelength chip SC is in the form of G, and the color conversion layer 105 is in the form of R.

[0152] In the third lighting mode, the light rays generated by at least one light-emitting diode chip, at least one single-wavelength chip, and the color conversion layer 105 include light rays in the cyan and green bands, and further include at least one of light rays in the yellow and red bands. Exemplarily, referring to Figure 28 , the light-emitting diode chip MC is in the form of CxGy, the single-wavelength chip SC is in the form of R, and the color conversion layer 105 is in the form of Y.

[0153] Of course, the light rays generated by at least one light-emitting diode chip, at least one single-wavelength chip, and the color conversion layer 105 in the above examples may further include light rays in other bands, such as light rays in the purple, blue, and infrared bands, to improve the spectral continuity of the lighting source. For example, in the second lighting mode, the light-emitting diode chip MC is in the form of BxCy, the single-wavelength chip SC is in the form of G, and the color conversion layer 105 is in the form of R; or, the light-emitting diode chip MC is in the form of BxCyGz, the single-wavelength chip SC is in the form of G, and the color conversion layer 105 is in the form of R.

[0154] In the embodiments of the present application, referring to Figure 1 、 Figure 29 and Figure 30 , the first light-emitting layer 103 in the light-emitting diode chip MC includes at least one first sub-layer 201, the second light-emitting layer 102 includes at least two second sub-layers 202, at least one first sub-layer 201 and at least two second sub-layers 202 are stacked in sequence, and each first sub-layer 201 and each second sub-layer 202 generate light rays of one wavelength respectively.

[0155] The number of the first sub-layers 201 is consistent with the number of wavelengths included in the light rays generated by the first light-emitting layer 103, and each first sub-layer 201 emits one wavelength. The number of the second sub-layers 202 is consistent with the number of wavelengths included in the light rays generated by the second light-emitting layer 102, and each second sub-layer 202 emits one wavelength. Among them, the first sub-layer 201 and the second sub-layer 202 are formed by an epitaxial process, and the first sub-layer 201 and the second sub-layer 202 can both be a quantum well (QM) or a multi-quantum well (MQW). The quantum well includes a barrier layer 203 and a well layer 204, and the multi-quantum well includes multiple cross-stacked barrier layers 203 and multiple well layers 204.

[0156] In some possible examples, in the light-emitting diode chip MC, except for one first layer 201 close to the second layer 202, the sum of the thicknesses of the remaining first layers 201 is less than the hole diffusion length, and the sum of the thicknesses of each first layer 201 is greater than the hole diffusion length. As Figure 20 shown, the thickness T2 is less than the hole diffusion length, and the thickness T1 is greater than the hole diffusion length. In this way, the holes generated by the P-type semiconductor layer 104 can reach each first layer 201, enabling each first layer 201 to emit light by electroluminescence. The holes generated by the P-type semiconductor layer 104 cannot reach each second layer 202, and each second layer 202 cannot emit light by electroluminescence.

[0157] In some other possible examples, a first barrier layer 106 is provided between adjacent first layer 201 and second layer 202. Except for one first layer 201 close to the second layer 202, the sum of the thicknesses of the remaining first layers 201 is less than the hole diffusion length, and the sum of the thicknesses of each first layer 201 and the first barrier layer 106 is greater than the hole diffusion length. As Figure 30 shown, the thickness T2 is less than the hole diffusion length, and the thickness T1 is greater than the hole diffusion length. In this way, the holes generated by the P-type semiconductor layer 104 can reach each first layer 201, enabling each first layer 201 to emit light by electroluminescence. The holes generated by the P-type semiconductor layer 104 cannot pass through the first barrier layer 106, that is, the holes generated by the P-type semiconductor layer 104 cannot reach each second layer 202, and each second layer 202 cannot emit light by electroluminescence. The material of the first barrier layer 106 can be gallium nitride doped with silicon.

[0158] In some other possible examples, a second barrier layer 107 is provided between two adjacent second layers 202 to block the holes and ensure that the holes do not reach the second layer 202 far from the P-type semiconductor. The material of the first barrier layer 106 can be gallium nitride doped with silicon. As a preferred implementation, refer to Figure 31 . A second barrier layer 107 is provided between every two adjacent second layers 202, and a first barrier layer 106 is provided between adjacent first layer 201 and second layer 202. In this way, the blocking effect on the holes is better, the second layer 202 does not emit light by electroluminescence, and the stability of the spectral energy distribution with respect to the change in current is good.

[0159] The embodiment of the present application further provides an illumination device, which includes an illumination lamp body, a mosquito repellent structure, and an illumination structure. The illumination structure generates an illumination light source, and the mosquito repellent structure generates mosquito repellent light rays to enhance the mosquito repellent function. In this way, it clears the interference of mosquitoes for users and prevents mosquitoes from entering the illumination device, thereby prolonging the service life of the illumination device. Among them, the wavelength range of the mosquito repellent light rays is 560nm - 600nm, and different wavelength bands can be selected according to different mosquitoes. The illumination structure can be encapsulated to form an illumination lamp bead, and the mosquito repellent structure can be encapsulated to form a mosquito repellent lamp bead (i.e., a yellow lamp bead).

[0160] The illumination lamp bead and the mosquito repellent lamp bead can be arranged in a discrete or integrated manner, that is, the illumination structure and the mosquito repellent structure are electrically connected to the same illumination lamp body or to different illumination lamp bodies. In the above two arrangement methods, the illumination lamp bead and the mosquito repellent lamp bead can be enabled simultaneously, or can be enabled separately according to requirements. For example, only the mosquito repellent lamp bead is turned on for mosquito repellent.

[0161] Specifically, the illumination lamp bead and the mosquito repellent lamp bead are arranged in different illumination lamp bodies of the lamp body, and the placement positions of different illumination lamp bodies are not restricted. Exemplarily, the illumination lamp bead is placed in the lower illumination lamp body of the table lamp, and the mosquito repellent lamp bead is placed in the upper illumination lamp body of the table lamp. Another example is that the illumination lamp bead is placed in the lower illumination lamp body of the table lamp, and the mosquito repellent lamp bead is placed in the illumination lamp body on the lamp arm of the table lamp.

[0162] Alternatively, the illumination lamp bead and the mosquito repellent lamp bead are arranged in the same illumination lamp body. Exemplarily, both the illumination lamp bead and the mosquito repellent lamp bead are placed on the lower illumination lamp body of the large street lamp. Another example is that both the illumination lamp bead and the mosquito repellent lamp bead are placed on the upper illumination lamp body of the large street lamp and also on the lower illumination lamp body of the large street lamp, that is, both the upper illumination lamp body and the lower illumination lamp body of the large street lamp are provided with the illumination lamp bead and the mosquito repellent lamp bead.

[0163] In the description of the embodiment of the present application, it should be understood that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, or can be indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations. The terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In the description of the present application, the meaning of "a plurality" is two or more, unless otherwise specifically and precisely specified.

[0164] The terms "first", "second", "third", "fourth", etc. (if any) in the description, claims and the above-mentioned drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of this application described herein can be implemented, for example, in an order different from those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units need not be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0165] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A lighting structure, characterized in that: The lighting structure comprises at least one light-emitting diode chip, wherein the light-emitting diode chip comprises an N-type semiconductor layer, a P-type semiconductor layer, and a first light-emitting layer and a second light-emitting layer disposed between the N-type semiconductor layer and the P-type semiconductor layer, wherein the first light-emitting layer is located on a side of the second light-emitting layer close to the P-type semiconductor layer; The first light-emitting layer generates light of at least one wavelength band in an electroluminescent manner, and the light generated by the first light-emitting layer excites the second light-emitting layer to generate light of at least one wavelength band, and each of the light bands includes at least one wavelength; The wavelength band corresponding to the light generated by the illumination structure includes a cyan wavelength band and / or a green wavelength band.

2. The lighting structure according to claim 1, characterized in that: The wavelength band corresponding to the generated light includes and highlights the green wavelength band, does not include the cyan wavelength band, or includes the cyan wavelength band with energy less than one tenth of the energy of the green wavelength band, and also includes at least one of the blue wavelength band and the purple wavelength band, and at least one of the red wavelength band and the yellow wavelength band; When the wavelength band corresponding to the generated light includes the blue wavelength band, the hazard level of the light in the blue wavelength band is better than the RG0 level.

3. The lighting structure according to claim 2, characterized in that: The ratio of the optical power of the light in the green band to the sum of the optical power of the light in the blue band and the light in the purple band is greater than 3; and The ratio of the optical power of the light in the green wavelength band to the light in the red wavelength band / yellow wavelength band is greater than 1.

4. The lighting structure according to claim 1, characterized in that: The wavelength band corresponding to the generated light includes and highlights the cyan wavelength band; A yellow band is also included, and / or a green band and a red band are also included.

5. The lighting structure according to claim 4, characterized in that: The optical power ratio of the light in the cyan wavelength band to the light in the yellow wavelength band is greater than 1; or The ratio of the optical power of the light in the cyan wavelength band to the light in the green wavelength band / red wavelength band is greater than 1.

5.

6. The lighting structure according to claim 1, characterized in that: The wavelength bands corresponding to the generated light include and highlight the cyan wavelength band and the green wavelength band, and also include at least one of the yellow wavelength band and the red wavelength band.

7. The lighting structure according to claim 6, characterized in that: The ratio of the optical power of the light in the cyan band to the light in the yellow band / red band is greater than 0.7; The ratio of the optical power of the light in the green wavelength band to the light in the yellow wavelength band / red wavelength band is greater than 0.

7.

8. The lighting structure according to any one of claims 1 to 7, characterized in that: The wavelength band corresponding to the light generated by the first light-emitting layer includes at least one of a purple wavelength band, a blue wavelength band, the cyan wavelength band, and the green wavelength band; The corresponding wavelength band generated by the second light-emitting layer includes at least one of the purple wavelength band, the blue wavelength band, the cyan wavelength band, the green wavelength band, the yellow wavelength band, the red wavelength band and the infrared wavelength band; At least one of the wavelengths of the light generated by the first light-emitting layer is smaller than all of the wavelengths of the light generated by the second light-emitting layer.

9. The lighting structure according to any one of claims 1 to 7, characterized in that: The lighting device comprises a light emitting diode chip, and the light generated by the light emitting diode chip forms the lighting light source.

10. The lighting structure according to any one of claims 1 to 7, characterized in that: The lighting device comprises at least two light emitting diode chips, and the light generated by the at least two light emitting diode chips is mixed to form the lighting light source.

11. The lighting structure according to any one of claims 1 to 7, characterized in that: The lighting structure further includes at least one single-wavelength chip, which generates light of a single wavelength.

12. The lighting structure according to claim 11, characterized in that: The light generated by at least one of the light emitting diode chips is mixed with the light generated by at least one of the single wavelength chips to form the illumination light source.

13. The lighting structure according to any one of claims 1 to 7, characterized in that: The lighting structure further comprises a color conversion layer, and the color conversion layer is arranged on the light emitting side of the light emitting diode chip.

14. The lighting structure according to claim 13, characterized in that: The light generated by at least one of the light emitting diode chips is mixed with the light generated by the color conversion layer to form the illumination light source.

15. The lighting structure according to claim 13, characterized in that: The color conversion layer includes at least one color conversion material, and the wavelengths of the light converted by each color conversion material are different; The color conversion material includes quantum dot material or fluorescent material, and the light converted by the color conversion material is in the blue band, green band, cyan band, yellow band, red band or infrared band.

16. The lighting structure according to claim 13, characterized in that: The color conversion layer includes at least one color conversion material, and the wavelengths of the light converted by each color conversion material are different.

17. The lighting structure according to any one of claims 1 to 7, characterized in that: The lighting structure further includes at least one single-wavelength chip and a color conversion layer. The single-wavelength chip generates light of a single wavelength. The color conversion layer is arranged on the light-emitting diode chip and / or the single-wavelength chip at a light-emitting side.

18. The lighting structure according to claim 17, characterized in that: The light generated by at least one of the light emitting diode chips, the light generated by at least one of the single wavelength chips, and the light generated by the color conversion layer are mixed to form the illumination light source.

19. A lighting device, characterized in that: The invention comprises a lighting lamp body, a lighting structure according to any one of claims 1 to 18, and a mosquito and insect repellent structure, wherein the mosquito and insect repellent structure generates mosquito and insect repellent light; The lighting structure and the mosquito and insect repellent structure are placed in the same lighting lamp body or in different lighting lamp bodies.

Images