CN112029335A - Blue-light-removing coating for LED - Google Patents
Blue-light-removing coating for LED Download PDFInfo
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- CN112029335A CN112029335A CN202010972594.8A CN202010972594A CN112029335A CN 112029335 A CN112029335 A CN 112029335A CN 202010972594 A CN202010972594 A CN 202010972594A CN 112029335 A CN112029335 A CN 112029335A
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- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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Abstract
The invention provides a blue light removing coating for an LED, which comprises epoxy resin, silver colloid, red fluorescent powder, green fluorescent powder, blue fluorescent powder, nano rare earth oxide, silicon, gallium nitride and gallium arsenide. According to the invention, the blue light removing coating is formed by adding the nano rare earth oxide with a proper proportion and proportioning the fluorescent powder, adding substances such as gallium nitride and gallium arsenide and the like, and is sprayed on the surface of the LED chip during packaging, so that the proportion of harmful blue light emitted by the LED is greatly reduced, the eye pathological damage and the human rhythm damage of myopia, cataract and macular lesion caused by blue light are effectively avoided, the proportion of harmless blue light is increased, the effect of suppressing melatonin secretion is increased, the effect of making people be delightful is played, meanwhile, the spectrum distribution is uniform, the uniformity and softness of emergent illumination light are ensured, and glare is effectively avoided; the blue light removing coating can reduce the packaging difficulty and the manufacturing cost, and is particularly suitable for manufacturing LED lamps in classrooms to protect the eyesight of children.
Description
Technical Field
The invention relates to the technical field of illumination, in particular to a blue light removing coating for an LED.
Background
Nature does not have separate white light, but the blue light is mixed with the green light and the yellow light to form white light. Green light and yellow light have less energy and are less irritating to eyes; the blue light wave is short, the energy is high, when the blue light reaches the fovea centralis of the macula lutea, lutein contained in the macula lutea can absorb a proper amount of blue light, the incidence of unabsorbed blue light can generate active oxygen, the excessive active oxygen can oxidize and damage retinal pigment epithelial cells, so that the retinal pigment epithelial cells cannot normally provide nutrition and metabolism for visual cells, the visual cell nutrition supply is poor, the main visual cells in the macula lutea are dead, the visual cells are non-renewable, and the visual health is greatly influenced. Especially for children, the retina macula has weak blue light absorption capacity, so that the blue light radiation received by the retina is about 2 times that of adults, and therefore the blue light radiation has the greatest influence on the eyesight health of children and is the group which needs protection most.
In the blue light, not all the wavelengths of the blue light can cause damage to human eyes, as shown in fig. 1, the damage of the 415-455nm wavelength blue light to retinal pigment epithelial cells is 2-4 times of the 480-500nm wavelength blue light, which belongs to harmful blue light and is a wavelength range that needs to be removed particularly; the 480-one 500nm wavelength range blue light has low damage to retinal pigment epithelial cells and large effect of suppressing melatonin secretion, but plays a role in making people refreshed, belongs to harmless blue light and is a wavelength range which needs to be reserved.
In daily schools and families, a fluorescent lamp or an LED lamp is mostly used as a light source for children to study, but due to the light emitting principle of the fluorescent lamp or the common LED lamp, as shown in FIG. 2 and FIG. 3, the light source emitted by the fluorescent lamp or the common LED lamp usually has higher intensity in the range of 415-.
The rare earth element oxide refers to 15 kinds of lanthanide element oxides with atomic numbers of 57 to 71 in the periodic table of elements, and 17 kinds of element oxides of scandium (Sc) and yttrium (Y) which are chemically similar to the lanthanide elements. The rare earth elements are widely applied in the fields of petroleum, chemical industry, metallurgy, textile, ceramics, glass, permanent magnet materials and the like, and the value of rare earth oxides is increased along with the technological progress and the continuous breakthrough of application technology. In the multi-electron atom of rare earth element, there can be several different S, L, J states for a definite electronic configuration, and these states have different spins (S), orbitals (L) and total angular momentum (J), i.e. contain different interaction situations among electrons, so that the energy is different, the energy level of the atom is related to the size of S, and the spectral term of the atom is expressed by 2S + 1L. In the case of L-S coupling, the energy of the individual spectral terms emerging from the same configuration is different. Many energy level sub-layers are generated due to interaction and coupling (L-S) of electron spin angular momentum and orbital angular momentum on the E4f energy level, an f-f electron transition (delta E = E2-E1= h ν) is generated, and a linear absorption spectrum is generated, and the selective absorption of visible light caused by the f-f transition is the root cause of the luminescence of the rare earth element. The electronic energy level and spectral line of rare earth elements are more various than other elements, and the rare earth elements have absorption or emission phenomena in the ultraviolet light region, the visible light region and the infrared light region, thereby being very good colored substances with wider color spectrum.
The family of GaN (gallium nitride) materials is an ideal short wavelength light emitting device material, with the band gap of GaN and its alloys covering the spectral range from red to ultraviolet. Since the development of homojunction GaN blue LEDs in japan in 1991, InGaN/AlGaN double-heterojunction super-luminance blue LEDs, InGaN single quantum well GaN LEDs, were successively introduced. Zcd and 6cd single quantum well GaN blue and green LEDs have now entered the mass production phase, filling the gap in blue LEDs on the market for many years. The blue light emitting device has a huge application market in the fields of information access of high-density optical disks, full-light display, laser printers and the like. With the continuous deepening of research and development work of III group nitride materials and devices, the GaInN ultrahigh blue light and green light LED technology has already been commercialized, and now, various companies and research institutions in the world invest huge amounts of capital into competition ranks for developing blue light LEDs.
GaAs is an important semiconductor material, and belongs to III-V group compound semiconductor, and has a zinc blende type lattice structure with a lattice constant of 5.65 × 10-10m, melting point of 1237 ℃, and forbidden band width of 1.4 electron volts. Gallium arsenide is put into practical use in 1964, and can be made into semi-insulating high-resistance material with resistivity higher than that of silicon and germanium by more than 3 orders of magnitude, which is used for manufacturing integrated circuit substrates, infrared detectors, gamma photon detectors, etc. The electron mobility of the material is 5-6 times higher than that of silicon, so that the material is applied to the aspects of manufacturing microwave devices and high-speed digital circuits.The semiconductor device made of gallium arsenide has the advantages of good high-frequency, high-temperature and low-temperature performances, low noise, strong radiation resistance and the like. In the 50 s of the 20 th century, uk scientists invented the first LED of modern interest using the semiconductor gallium arsenide.
Based on the research of the existing blue light removing LED lamp, how to eliminate harmful blue light in an LED illumination light source by utilizing a coating and retain harmless blue light so as to protect human eyes and human health is a problem which needs to be solved urgently in the field of LED illumination.
Disclosure of Invention
Technical problem to be solved
The invention aims to provide a blue light removing coating for an LED, which has the functions of removing harmful blue light and leaving harmless blue light, can be used for manufacturing an LED lamp and is beneficial to protecting eye health. In order to achieve the purpose, the invention adopts the following technical scheme:
(II) technical scheme
An LED blue light removing coating comprises the following components in percentage by mass: 18.73 to 19.73 percent of epoxy resin, 9.75 to 10.75 percent of silver colloid, 10.74 to 12.14 percent of red fluorescent powder, 9.86 to 10.86 percent of green fluorescent powder, 5.12 to 6.62 percent of blue fluorescent powder, 12.38 to 17.38 percent of nano rare earth oxide, 9.84 to 10.34 percent of silicon, 7.55 to 8.55 percent of gallium nitride and 9.13 to 10.13 percent of gallium arsenide.
Further, the red fluorescent powder is GP-0764A type fluorescent powder produced by the company Limited for new rare earth materials.
Further, the green phosphor is GP-2751 type phosphor produced by GmbH (rare earth new materials Co., Ltd.).
Further, the blue fluorescent powder is GP-0730 type fluorescent powder produced by the company Limited for new rare earth materials.
Further, the nano rare earth oxide is nano oxide of lanthanum or yttrium.
(III) advantageous effects
Compared with the prior art, the LED chip has obvious advantages and beneficial effects, specifically, by adding the nano rare earth oxide with a proper proportion and proportioning each fluorescent powder, and adding substances such as gallium nitride, gallium arsenide and the like to form the LED blue light removing coating, the coating can be sprayed to the light emitting surface of the LED chip in the packaging process of the LED chip, so that the proportion of harmful blue light emitted by the LED chip is greatly reduced, myopia, cataract and eye pathological hazard and human rhythm hazard of macular lesion caused by blue light are effectively avoided, the proportion of harmless blue light is increased, the effect of suppressing melatonin secretion is increased, the effect of making people be refreshing and profitable is achieved, meanwhile, the spectrum distribution is uniform, the uniformity and softness of emergent illumination light are ensured, and glare is effectively avoided; the blue light removing function is realized by using the blue light removing coating, the packaging difficulty is effectively reduced, the manufacturing cost is reduced, and the LED lamp is particularly suitable for manufacturing LED lamps used in classrooms and protecting the eyesight of children.
Drawings
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
FIG. 1 is a bar graph of retinal pigment epithelial cell damage values for various wavelengths of blue light;
FIG. 2 is a spectrum diagram of a fluorescent lamp at a color temperature of 6500K;
FIG. 3 is a spectrum diagram of a conventional LED lamp at 6500K color temperature;
FIG. 4 is a spectrum of example 1 at a color temperature of 6500K;
FIG. 5 is a spectrum of example 2 at a color temperature of 6500K;
FIG. 6 is a spectrum chart of example 3 at a color temperature of 6500K.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The invention is further described with reference to the following detailed description and accompanying drawings.
In order to achieve the best effect, the red fluorescent powder, the pink green fluorescent powder and the blue fluorescent powder used in each embodiment are GP-0764A type fluorescent powder, GP-2751 type fluorescent powder and GP-0730 type fluorescent powder which are produced by new rare earth material research corporation respectively, and the nano rare earth oxide is also the nano rare earth oxide produced by new rare earth material research corporation.
Examples 1,
An LED blue light removing coating comprises the following components in percentage by mass: 18.73 percent of epoxy resin, 10.75 percent of silver colloid, 10.74 percent of red fluorescent powder, 9.86 percent of green fluorescent powder and 5.62 percent of blue fluorescent powderFluorescent powder, 17.38% nanometer lanthanum oxide (La)2O3) 10.24% of silicon, 7.55% of gallium nitride and 9.13% of gallium arsenide, and spraying the silicon, the gallium nitride and the gallium arsenide on the light-emitting surface of the UVLED chip, so that the UVLED chip forms an LED lamp, and the spectrogram of the LED lamp is shown in FIG. 4;
examples 2,
An LED blue light removing coating comprises the following components in percentage by mass: 19.73% of epoxy resin, 9.75% of silver colloid, 12.14% of red fluorescent powder, 10.86% of green fluorescent powder, 6.62% of blue fluorescent powder and 12.38% of nano yttrium oxide (Y)2O3) 9.84% of silicon, 8.55% of gallium nitride and 10.13% of gallium arsenide, and spraying the silicon, the gallium nitride and the gallium arsenide on a light-emitting surface in which a UVLED chip is arranged to form an LED lamp, wherein a spectrogram of the LED lamp is shown in FIG. 5;
examples 3,
An LED blue light removing coating comprises the following components in percentage by mass: 19.23% of epoxy resin, 10.25% of silver colloid, 11.64% of red fluorescent powder, 10.36% of green fluorescent powder, 5.12% of blue fluorescent powder and 15.38% of nano lanthanum oxide (La)2O3) 10.34% of silicon, 8.05% of gallium nitride and 9.63% of gallium arsenide, and the materials are sprayed on the light-emitting surface of the UVLED chip, so that the UVLED chip forms an LED lamp, and the spectrogram of the LED lamp is shown in FIG. 6.
According to the three embodiments, the blue light removing coating is formed by adding the nano rare earth oxide with a proper proportion, proportioning the fluorescent powder and adding substances such as gallium nitride, gallium arsenide and the like, and is sprayed to the light emitting surface of the LED chip during packaging, so that the proportion of harmful blue light emitted by the LED is greatly reduced, the eye pathological damage and the human rhythm damage of myopia, cataract and macular degeneration caused by blue light are effectively avoided, the proportion of harmless blue light is increased, the effect of suppressing melatonin secretion is increased, the effect of making people be delightful is achieved, meanwhile, the spectrum distribution is uniform, the uniformity and softness of emergent illumination light are ensured, and glare is effectively avoided; the blue light removing coating can reduce the packaging difficulty and the manufacturing cost, and is particularly suitable for manufacturing LED lamps in classrooms to protect the eyesight of children.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.
Claims (5)
1. An LED with a blue-removing coating, characterized in that: calculated by mass percent, the method comprises the following steps: 18.73 to 19.73 percent of epoxy resin, 9.75 to 10.75 percent of silver colloid, 10.74 to 12.14 percent of red fluorescent powder, 9.86 to 10.86 percent of green fluorescent powder, 5.12 to 6.62 percent of blue fluorescent powder, 12.38 to 17.38 percent of nano rare earth oxide, 9.84 to 10.34 percent of silicon, 7.55 to 8.55 percent of gallium nitride and 9.13 to 10.13 percent of gallium arsenide.
2. The de-bluing coating for LEDs according to claim 1, wherein: the red fluorescent powder is GP-0764A type fluorescent powder produced by the company Limited for the research of new rare earth materials.
3. The de-bluing coating for LEDs according to claim 1, wherein: the green fluorescent powder is GP-2751 type fluorescent powder produced by the company Limited for the research of new rare earth materials.
4. The de-bluing coating for LEDs according to claim 1, wherein: the blue fluorescent powder is GP-0730 type fluorescent powder produced by the company Limited for the research of new rare earth materials.
5. The de-bluing coating for LEDs according to claim 1, wherein: the nano rare earth oxide is nano oxide of lanthanum or yttrium.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008031438A (en) * | 2006-06-30 | 2008-02-14 | Sanyo Chem Ind Ltd | Photosensitive composition |
| CN106189166A (en) * | 2016-07-20 | 2016-12-07 | 王玲 | A kind of LED and preparation method thereof |
| CN108134003A (en) * | 2017-12-29 | 2018-06-08 | 广东晶科电子股份有限公司 | A kind of anti-blue light encapsulation LED light emitting device and its backlight module |
-
2020
- 2020-09-16 CN CN202010972594.8A patent/CN112029335A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008031438A (en) * | 2006-06-30 | 2008-02-14 | Sanyo Chem Ind Ltd | Photosensitive composition |
| CN106189166A (en) * | 2016-07-20 | 2016-12-07 | 王玲 | A kind of LED and preparation method thereof |
| CN108134003A (en) * | 2017-12-29 | 2018-06-08 | 广东晶科电子股份有限公司 | A kind of anti-blue light encapsulation LED light emitting device and its backlight module |
Non-Patent Citations (3)
| Title |
|---|
| 吴其胜: "《新能源材料》", 30 June 2017, 华东理工大学出版社 * |
| 饶海波: "《半导体照明导论》", 30 April 2012, 电子科技大学出版社 * |
| 黄美兴: "《电子电器维修技术》", 30 June 2010, 西南交通大学出版社 * |
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