KR20240014751A - Rgb chip capable of realizing various colors - Google Patents

Abstract

The present invention relates to an RGB chip using visible light sterilizing LEDs that are harmless to the human body and can produce a variety of colors. An R, G, B LED package that emits colored light by coating an LED element with a visible light wavelength and a sterilizing effect with a fluorescent material. This is an RGB chip that can produce various colors that are harmless to the human body and have a sterilizing effect through a combination of elements. To this end, the present invention includes a first LED chip that emits light with a central wavelength of 400 to 410 nm, an LED package that includes a phosphor layer formed on the first LED chip and emits colored light, and the LED package emits red light. It includes a light-emitting R LED package, a green-emitting G LED package, and a B LED package, and includes a substrate provided with a partition wall on which the LED packages are arranged, and controls the intensity of the voltage transmitted to the R, G, and B LED packages. It includes a color control unit that changes color, a W LED package, and an infrared LED package. Using the RGB chip according to the present invention, users can sterilize the room with visible light that is harmless to the human body while using various colors using the RGB chip, reduce damage from blue light, and reduce the risk of COVID-19 virus due to the sterilizing effect. It is also effective in killing. If the lights installed in public transportation and multi-use facilities are replaced with lighting fixtures according to the present invention, the spread of the COVID-19 virus can be reduced as well as the natural sterilization effect by illuminating the lights.

Description

RGB chip capable of realizing various colors {RGB CHIP CAPABLE OF REALIZING VARIOUS COLORS}

The present invention relates to an RGB chip using visible light sterilizing LEDs that are harmless to the human body and can display various colors. In more detail, it is a combination of R, G, and B LED package elements that emit colored light by coating an LED element with a visible light wavelength and a sterilizing effect with a fluorescent material, creating an RGB chip that can produce various colors that are harmless to the human body and have a sterilizing effect. It's about.

LED (Light Emitting Diode) is an inorganic light source that is rapidly being used in various fields such as display devices, vehicle lamps, and general lighting. In particular, LEDs have a long lifespan and low power consumption, so they are quickly replacing existing lighting sources.

Meanwhile, ultraviolet rays (UV) are well known to have sterilizing and disinfecting effects. Accordingly, various light sources having a sterilizing function using ultraviolet LEDs are being developed. Prior Document 1 (Korean Patent No. 10-2300679) is an invention utilizing such an ultraviolet LED and is a sterilizer using an LED ultraviolet sterilizing lamp. However, because ultraviolet rays (UV) are harmful to the human body, there are restrictions on their use. This is because the disinfection mechanism of ultraviolet (UV) light with a wavelength of 260-290 nm destroys DNA by cracking DNA molecules. For this reason, the LED sterilization method using ultraviolet (UV) light has the disadvantage of being unsuitable for use in lighting devices in spaces where people are active.

Meanwhile, in order to make an LED that emits white light, a phosphor that emits yellow light is applied using the blue light of a blue LED as an excitation source, and the blue light emitted from the device and the yellow light emitted from the phosphor are mixed to produce white color. there is. That is, for LED devices that emit white light, a common method is to apply a phosphor to the LED and use blue light emitted from the device and a secondary light source emitted from the phosphor. Prior Document 2 (Korean Patent Registration No. 10-1432479) is an invention for making a light-emitting diode that emits white light by coating a blue light-emitting diode with a yellow phosphor. However, in this method of making a white light emitting diode, a blue LED is coated with a fluorescent material on a device with a visible light wavelength in the 450 nm range, which is the cheapest device to produce white light, and emits white light.

As COVID-19 has recently spread, the number of facilities requiring sterilization and disinfection for quarantine purposes has increased, and sterilization and disinfection have become more essential in multi-use facilities and public transportation. In this situation, if it were possible to produce a sterilizing effect with lighting used in multi-use facilities or public transportation, it would not only save manpower and resources needed for quarantine, but also help prevent the spread of COVID-19. However, because there is a constant flow of people in multi-use facilities or public transportation, it is difficult to use the above-mentioned ultraviolet LED, and the commonly used LED that irradiates white light has little sterilization effect.

Prior Document 1: Republic of Korea Patent No. 10-2300679 (registered on September 3, 2021) Prior Document 2: Republic of Korea Patent No. 10-1432479 (registered on August 14, 2014)

The technical purpose of the present invention is to solve the above problems and to provide an RGB chip that is harmless to the human body and has a sterilizing function using an LED with an appropriate center wavelength.

In addition, by providing RGB chips that emit light of various temperatures and colors in the visible light range, we provide lighting equipment with a sterilizing function that can be used in various environments.

The present invention includes an LED package including a first LED chip that emits light with a central wavelength of 400 to 410 nm, a phosphor layer formed on the first LED chip, and the LED package includes an R LED that emits red. package; and a G LED package that emits green light, and an RGB chip including a substrate on which the LED package is placed.

In addition, the LED package provides an RGB chip further comprising a B LED package that emits blue light.

In addition, an RGB chip is provided, which further includes a sterilizing unit that emits light with a central wavelength of 222 nm.

In addition, the LED package provides an RGB chip further comprising a W LED package that emits white light.

In addition, the LED package provides an RGB chip further comprising a W LED package that emits white light with a color temperature of 4000K and a WW LED package that emits white light with a color temperature of 2500K.

In addition, an RGB chip is provided, further comprising an infrared LED package including a second LED chip emitting light with a central wavelength of 845 to 855 nm.

In addition, an RGB chip including a color control unit that changes color by adjusting the intensity of voltage delivered to the R LED package, G LED package, and B LED package is provided.

In addition, the substrate provides an RGB chip characterized in that it includes a partition wall that divides the LED packages into sections so that they are spatially distinguished from each other.

In addition, the RGB chip further includes a sensor, and the sensor is provided as one of a contamination detection sensor, a motion detection sensor, and a heat detection sensor, and further includes a control unit that controls the RGB chip and the sterilization unit based on information sensed by the sensor. Provides an RGB chip characterized by:

According to the present invention, it is possible to sterilize the interior with visible light that is harmless to the human body while implementing various colors.

In addition, according to the present invention, the damage from blue light can be reduced, and in addition to the sterilization effect, it is also effective in killing the COVID-19 virus.

In addition, if the lights installed in public transportation and multi-use facilities where the public are always crowded are replaced with lighting fixtures according to the present invention, a natural sterilization effect can be observed while illuminating, thereby reducing the spread of various pathogens and the COVID-19 virus.

Since the RGB chip according to the present invention can implement various colors, the user can use it by changing the color to the desired color depending on the situation and needs.

1 is a perspective view of an RGB chip according to an embodiment of the present invention.
Figure 2 is a diagram showing an LED package according to an embodiment of the present invention.
Figure 3 is a diagram showing an LED package and a partition wall disposed on a substrate according to an embodiment of the present invention.
Figure 4 is a photograph showing the results of the first sterilization experiment of the LED package of the present invention.
Figure 5 is a table showing the results of the first sterilization experiment of the LED package of the present invention.
Figure 6 is a table showing the results of the second sterilization test of the LED package of the present invention.

Hereinafter, with reference to the attached drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily implement the present invention. However, the present invention may be implemented in various different forms and is not limited to the embodiments disclosed below. In addition, in order to clearly disclose the present invention in the drawings, parts not related to the present invention are omitted, and identical or similar symbols in the drawings indicate identical or similar components.

The purpose and effect of the present invention can be naturally understood or become clearer through the following description, and the purpose and effect of the present invention are not limited to the following description.

The purpose, features and advantages of the present invention will become clearer through the following detailed description. Additionally, in describing the present invention, if it is determined that a detailed description of known techniques related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. Hereinafter, embodiments according to the present invention will be described in detail with reference to the attached drawings.

FIG. 1 is a perspective view of an RGB chip 10 according to an embodiment of the present invention, FIG. 2 is a diagram showing an LED package 100 according to an embodiment of the present invention, and FIG. 3 is a diagram showing a substrate 200 according to an embodiment of the present invention. This is a diagram showing the LED package 100 and the partition wall 210 disposed in. Referring to FIGS. 1 to 3, the RGB chip 10 includes an LED package 100 including a first LED chip 110 and a phosphor 121, and a substrate 200, and the LED package 100 ) may include an R LED package 130, a G LED package 140, a B LED package 150, and a W LED package 160, and the substrate 200 has the R, G, and B packages spatially aligned with each other. It may include a partition 210 to distinguish it, and the RGB chip 10 adjusts the intensity of the voltage delivered to the R LED package 130, G LED package 140, and B LED package 150 to change color. It may be provided to further include a color control unit that changes the color. Additionally, the RGB chip 10 may further include an infrared LED package 400 including a second LED chip.

Figure 2 is a diagram showing the LED package 100 of one embodiment of the present invention. Referring to FIG. 2, the LED package 100 is configured to emit light with a central wavelength of 405 nm and is provided for sterilization effect. The LED package 100 includes a phosphor layer 120 and a first LED chip 110 to emit light with a central wavelength of 405 nm, and is placed on the substrate 200. In addition, the LED package 100 can emit colored light in the visible light band depending on the configuration of the phosphor layer 120, and can be configured to emit various colors such as white, green, orange, and yellow, according to an embodiment of the present invention. It may be equipped to emit red, green, blue and white light.

The first LED chip 110 is a diode that produces a sterilizing effect by emitting light with a central wavelength of 400 to 410 nm. Since the first LED chip 110 emits light with a central wavelength of 405 nm, which is most suitable for the sterilization effect, the present invention will be described based on the first LED chip 110 with a central wavelength of 405 nm. The first LED chip 110 is installed inside the phosphor layer 120, which will be described later, and forms the LED package 100 together with the phosphor layer 120.

The phosphor layer 120 is composed of epoxy resin 122 and phosphor 121, and emits light emitted from the first LED chip 110 as light in the visible light band such as white, green, orange, and yellow. It is a configuration that makes it possible. The phosphor layer 120 is configured to uniformly disperse and apply the phosphor 121. The phosphor layer 120 is manufactured by uniformly dispersing the phosphor 121 in the epoxy resin 122, applied or placed in a thin film on the first LED chip 110, and then cured at 100 to 160 ° C. for 1 hour. It is manufactured. In addition, it is possible to use a small amount of the phosphor 121 by applying a paste composition containing a mixture of the phosphor 121 and a glass frit using a screen printing method.

The phosphor 121 is applied on the first LED chip 110 and excited by light emitted from the first LED chip 110, so that the LED package 100 emits light in various visible light bands, including white light. am. As described above, the phosphor 121 may be mixed and dispersed with the epoxy resin 122 in the phosphor layer 120 of the LED package 100 to form the LED package 100. At this time, the phosphor 121 may include a blue phosphor 121, a green phosphor 121, a red phosphor 121, and a yellow phosphor 121, and the light emitted from the first LED chip 110 is used as an excitation source. By combining the phosphors 121 that generate color, various lights in the visible light band such as white, green, orange, and yellow are created.

When the LED package 100 is configured in this way to emit various lights in the visible light band, the LED package 100 can emit colored light that produces a sterilizing effect, and the central wavelength within the LED package 100 is 405 nm. 1 Since the LED chip 110 is used, the wavelength of 405 nm has a longer wavelength than ultraviolet rays, so the sterilization distance is long and it has the advantage of being harmless to the skin, making it suitable for space sterilization.

On the other hand, when the LED package 100 emits colored light such as white light or green light, the phosphors 121 are used to emit white light or green light relatively without emitting blue light compared to the case of sterilization using a blue LED. Because it can emit light, it is possible to minimize the blue light emitted from lighting and use white, green, orange, yellow, etc. lights that are not harmful to the human body as spatial lighting.

Therefore, the RGB chip 10 according to the present invention can be configured to emit white light in multi-use facilities that require bright white light, and by varying the configuration of the phosphor layer 120, it can emit various types of white light such as 2000K to 3000K in places such as cafes. It can be used as a lighting device that emits color temperature, and when necessary, colors such as green, orange, and yellow can be used as mood lighting. By utilizing various color temperatures and colors, it becomes possible to utilize the LED package 100 that can sterilize in various spaces and places.

Meanwhile, the LED package 100 includes a first LED chip 110 that emits light with a central wavelength of 400 to 410 nm, and an R LED package (R LED package) that emits red by varying the phosphor layer 120, respectively. 130), a G LED package 140 that emits green light, and a B LED package 150 that emits blue light. In this way, the R, G, B LED package 150 is provided to emit red, green, and blue, the three primary colors of light, by adjusting the color of the phosphor 121 constituting the LED package 100, and the substrate 200 is provided. They can be placed together to form an RGB chip 10 and emit white light when turned on at the same time. At this time, the R, G, B LED package 150 that emits each color may have only the phosphor 121 that emits one color, and a combination of the phosphors 121 of various colors may be R, G, and B, respectively. It may be provided to display the colors of . In addition, by further including a color control unit, it is possible to change the color by adjusting the intensity of the voltage delivered to each of the R, G, and B LED packages 150, which will be described later.

If the R, G, B LED package 150 is provided like this, instead of the RGB LED consisting of the commonly used wavelengths of R 620 nm, G 520 nm, and B 460 nm, the R, G, B LED package uses a 405 nm wavelength to enable sterilization. Using (150), it is possible to adjust the desired color for each user and have a sterilization function.

Meanwhile, the infrared LED package 400 includes a second LED chip that emits infrared rays with a central wavelength of 845 to 855 nm to assist sterilization and is configured to produce sterilization, drying, and warming effects. It is preferable to emit infrared rays with a central wavelength of 850 nm to obtain the above-mentioned effects, and therefore, in one embodiment of the present invention, the central wavelength is 850 nm.

Since the light emitted from the second LED chip is infrared with a central wavelength of 850 nm, it cannot be seen by the human eye and does not affect the color of the light emitted from the RGB chip 10. Accordingly, the infrared LED package 400 may not include the phosphor 121 and the phosphor layer 120, or may include the phosphor 121 and the phosphor layer 120 to emit colored light. However, manufacturing it including the phosphor layer 120 and the phosphor 121 costs a lot of money, and is disposed together with the LED package 100 or the W LED package 160, so that the colored light is transmitted through the LED package 100 or the W LED package 160. Since what the LED package 160 emits can be utilized, it is preferable that the infrared LED package 400 consists of only the second LED chip and emits infrared rays to save costs.

The W LED package 160 includes a first LED chip 110 that emits light with a center wavelength of 400 to 410 nm and a phosphor layer 120 formed on the first LED chip 110, emitting white light. It is a composition. The W LED package 160 may have a phosphor layer 120 formed to emit white light with a color temperature of 2500 to 7000K, and may be equipped to emit light at various color temperatures depending on the purpose. In one embodiment of the present invention, the color temperature is 4000K in consideration of combination with the WW LED package 160, which will be described later.

The WW LED package 160 includes a first LED chip 110 that emits light with a central wavelength of 400 to 410 nm and a phosphor layer 120 formed on the first LED chip 110, emitting white light of various color temperatures. It is a configuration that can emit light. At this time, the WW LED package 160 in one embodiment of the present invention refers to the LED package 100 that emits warm white light, and the phosphor layer 120 can be formed to emit white light with a color temperature of 2500K. Of course, it can be equipped to emit light of various color temperatures depending on the purpose.

When the W LED package 160 and the WW LED package 160 are provided in this way, white light can be emitted and serve as lighting without the combination of the R, G, and B LED packages 150, and the W LED package 160 When the and WW LED package 160 are provided together, light of various color temperatures can be produced by producing individual color temperatures or by combining light of color temperatures.

Referring to FIG. 3, the substrate 200 is configured to be disposed by combining the LED package 100. At this time, FIG. 3 is a diagram expressed based on including the R, G, B LED package 150, W LED package 160, or infrared LED package 400 in one embodiment of the present invention. The substrate 200 is configured to form the RGB chip 10 by arranging the LED packages 100, and can be classified into 3 in 1, 4 in 1, etc. depending on the number of LED packages 100 that can be placed. , one embodiment of the present invention will be described based on the 3 in 1 and 4 in 1 substrates 200. However, it is not limited to 3 in 1 or 4 in 1 depending on need, and it is possible to deploy a larger or smaller number of LED packages (100).

The substrate 200, which is provided as 3 in 1, is provided so that at least three LED packages 100 can be combined in order to arrange the R, G, and B LED packages 150. At this time, in consideration of preventing the emission of blue light through the B LED package 150, the 3 in 1 substrate 200 uses a W LED package 160 or an infrared LED package 400 instead of the B LED package 150. can be placed. In this way, when the 3 in 1 substrate 200 is provided with a W LED package 160 or an infrared LED package 400 instead of the B LED package 150, the RGB chip 10 is connected to the R LED package 130 and the G It can emit colors such as red, orange, yellow, and green that can be displayed by the LED package 140. However, if necessary, instead of excluding the B LED package 150, the R or G LED package 140 may be excluded and replaced with the W LED package 160 or the infrared LED package 400. It is natural that the colors that can be expressed by the LED package 100 of the colors other than the colors B can be expressed.

In this way, if the 3 in 1 substrate 200 is equipped with the W LED package 160 or the infrared LED package 400 instead of the R, G LED package 140 and B LED package 150, damage from blue light can be prevented while The sterilizable RGB chip (10) can be utilized, and when the W LED package (160) is provided instead of the B LED package (150), white light is emitted through the W LED package (160) even without the B LED package (150). , and if the infrared LED package 400 is provided instead of the B LED package 150, the effect of helping sterilization can be seen.

In addition, the substrate 200 may be provided as 4 in 1, so that four or more LED packages 100 may be combined. At this time, three LED packages 100 may be provided in the manner previously used in 3 in 1, and in addition, one LED package 100 may be provided. For example, it is provided to include an R, G, B LED package 150 and an infrared LED package 400 or a W LED package 160, so that the R, G, B, infrared LED package 400 or A combination of R, G, B, and W LED packages 160 may be provided. In addition, in order to reduce damage from blue light, it is possible to place the infrared LED package 400 except for the B LED package 150, or to place the infrared LED package 400 on the 3 in 1 board 200 in combination with the B LED package 150. It is also possible to combine different LED packages 100. For example, it is possible to add the W LED package 160 to a combination of the R, G, and infrared LED packages 400, and it is also possible to add the WW LED package 160 to the R, G, and W LED packages 160. do.

In this way, the RGB chip 10 that can be used for various purposes can be completed through the combinations that can be used on the 4 in 1 substrate 200, and the user's needs can be met through various combinations. In addition, when the combination of R, G, W, and WW LED packages 160 emits white light, the tone of white or warm white can be adjusted by adjusting the intensity of light of the W LED package 160 and WW LED package 160. There is a possible effect. And in the case of a configuration including the W LED package 160 or the WW LED package 160, white light can be emitted regardless of the combination of the remaining LED packages 100, and even if there is a problem with the other LED packages 100, white light can be emitted. There is an effect that can produce .

The board 200, which can be equipped to combine various configurations, can be provided as a printed circuit board such as a PCB, and an RGB chip (10) completed by combining a configuration such as the LED package 100 with the board 200. ) It can be used alone as lighting, or it can be equipped to combine a plurality of RGB chips 10 on a PCB forming a lighting fixture to form a lighting fixture in which several RGB chips 10 are arranged. In addition, when the 3 in 1 or 4 in 1 substrate 200 is used for the RGB chip 10 to form a lighting device with one or more RGB chips 10, the LED package 100 of various colors and infrared rays are used. When all packages can be built into one RGB chip (10), space utilization improves when arranging the RGB chips (10), and additional RGB chips (10) can be placed as much as the free space, thereby increasing sterilization power. This can be improved, and by arranging many LEDs, the electrical load on one LED can be lowered to reduce heat generation, and through this, the lifespan of the LED can be extended.

When the substrate 200 is provided in this way, the RGB chip 10 can be formed by combining a combination of various LED packages 100 into one set, and the RGB chip 10 can be combined into a lighting fixture, etc. You can create lighting that can utilize various colors or functions according to your needs. In addition, if 3 to 4 devices with a wavelength of 405 nm are placed in a 3in1 to 4in1 chip of the same size, the sterilization effect can be increased because a large number of devices are placed compared to one or two devices for sterilization.

At this time, the reason for using the central wavelength band of 405 nm for the LED package 100 is that when it has a central wavelength of 405 nm, the wavelength is longer than ultraviolet rays, so the sterilization distance is long, and it is harmless to the skin, making it suitable for space sterilization. However, when 405nm is used, the sterilizing power may be insufficient compared to the method using ultraviolet rays, etc., and it can be confirmed through experiments that the sterilizing power is sufficiently increased when 850nm is used together to make up for the lack of sterilizing power. This will be described later.

Meanwhile, the RGB chip 10 may be provided on a 3-in-1 or 4-in-1 board 200 and have a setting mode to operate in various ways. The setting mode of the RGB chip 10 can be changed using a switch or button, can be changed manually, or can be automatically converted using a motion sensor. Accordingly, it can be equipped with a normal mode or a sterilization mode.

The normal mode is a setting mode in which the RGB chip 10 is configured to function as lighting in normal times. In normal mode, some or all of the W LED package 160, the infrared LED package 400, and the WW LED package 160, which emit white light, may be turned on to serve as lighting. In addition, when all R, G, and B LED packages 150 are included, all R, G, and B LED packages 150 are turned on to emit white light, thereby serving as lighting and enabling sterilization. Generally, a dimming device may be further provided to adjust brightness.

Additionally, the sterilization mode is a setting mode in which the RGB chip 10 emits light optimized for sterilization. In sterilization mode, light of a designated color can be emitted, or the user can control the sterilization mode color and store it. A device such as a wavelength converter is further provided to convert the wavelength so that the RGB chip 10 produces light more suitable for sterilization. It is possible to adjust the brightness by adding a dimming device.

In this way, when the RGB chip 10 is equipped with a setting mode to distinguish between a normal mode and a sterilization mode, the user can visually check whether it is being sterilized and manually adjust the mode to perform the desired operation. This can be done and the mode can be conveniently converted by automatically switching between normal mode and sterilization mode.

The sterilizing unit with a central wavelength of 222nm sterilizes the space so that it is not harmful to the human body and emits light to serve as lighting. Light with a central wavelength of 222 nm kills viruses, but does not pass through the tear film of the eye or the stratum corneum of the skin, so it is harmless to the human body. In one embodiment of the present invention, a sterilizing unit with a central wavelength of 222 nm is provided to utilize this light. The sterilizing unit may be provided with an LED or a lamp, and in one embodiment of the present invention, the description will be based on the sterilizing unit provided with an LED so that it is suitable for use with other LED packages 100.

A sterilizing unit with a central wavelength of 222 nm may be provided separately and driven together with the RGB chip 10, or the RGB chip 10 may be configured to include a sterilizing unit with a central wavelength of 222 nm. When the sterilizing unit and the RGB chip 10 are turned on together, the LED packages 100 placed on the RGB chip 10 can be appropriately color-combined so that light of an appropriate color is emitted to serve as lighting, or The sterilizing unit may be equipped to emit a specific color when turned on so that it can be confirmed that the sterilizing unit is turned on, and the sterilizing unit may include the phosphor layer 120 to emit light of a specific color, including white.

Meanwhile, the sterilizing unit equipped with a central wavelength of 222 nm has the characteristic of having a short lifespan. Therefore, in one embodiment of the present invention, in order to extend the life of the sterilizing unit and achieve an appropriate space sterilizing effect, the sterilizing unit operates in various modes together with the configuration of the LED package 100 included in the RGB chip 10 to provide sterilizing effect and lighting. It is equipped to play its role.

At this time, the sterilizing unit and the RGB chip 10 may operate in various ways. In one embodiment of the present invention, the description will be made based on the fact that it can be operated in daily sterilization mode and intensive sterilization mode. In the daily sterilization mode, the sterilizing unit and the RGB chip 10 may be configured to be turned ON and the sterilizing unit OFF so that sterilization can be performed while serving as general lighting. In addition, in the intensive sterilization mode, both the RGB chip 10 and the sterilization unit are turned on, so that the space can be sterilized more intensively with the 222nm wavelength light of the sterilization unit along with the RGB chip 10 containing the 405nm LED package 100. . In this way, being able to change the daily sterilization mode and intensive sterilization mode has the effect of prolonging the life of the sterilization unit, which has a short lifespan, while sterilizing intensively when necessary and properly sterilizing through the general sterilization mode in normal times.

Meanwhile, the daily sterilization mode and intensive sterilization mode can be changed manually through various types of switches, or automatically according to information sensed including contamination detection, motion detection, and heat detection sensors. The mode can be changed. To this end, the RGB chip 10 may further include a sensor provided as one of a contamination detection sensor, a motion detection sensor, or a heat detection sensor, and a control unit that controls the RGB chip 10 and the sterilization unit.

The control unit is configured to cause the RGB chip 10 and the sterilization unit to perform specific operations using a set standard value based on information sensed by the sensor.

At this time, if the sensor includes a contamination detection sensor and the contamination level measured by the contamination detection sensor exceeds the set standard value, the control unit may operate the sterilization unit and the RGB chip 10 in intensive sterilization mode, and the contamination level may be reduced again. After falling below a set standard or operating for a set time, the mode can be changed to normal sterilization mode and operated again. In addition, when a motion detection sensor or a heat detection sensor is included, the intensive sterilization mode can be automatically operated when conditions such as the number of people to be sensed or the standard value of the number of times sensed during a set standard time are met. For example, if heat or motion is detected more than 20 times during a standard time of 1 minute, the intensive sterilization mode can be automatically turned on.

Meanwhile, the sensor may be equipped with a variety of sensors that can sense the surrounding environment in addition to the sensors described above. A standard value can be set according to the sensing information of the sensor and the mode can be changed when the standard value is reached, and not a single sensor. It is also possible to include multiple sensors so that the mode changes when one of the sensors reaches a threshold. In addition, in the case of including a sterilization unit and an RGB chip 10, not only the daily sterilization mode and the intensive sterilization mode, but also the normal mode or sterilization mode, which is the mode of the above-described RGB chip 10, are included and can be changed depending on the situation. You can.

In this way, providing a sterilizing unit and allowing the sterilizing mode to be changed through a sensor and control unit has the effect of extending the life of the sterilizing unit and continuously sterilizing spaces and surfaces at minimal cost.

Meanwhile, the substrate 200 may include a partition wall 210 that spatially distinguishes the LED packages 100 coupled to the substrate 200 from each other. A partition wall 210 may be provided to distinguish various combinations of LED packages 100 coupled to the substrate 200, but in one embodiment of the present invention, the R LED package 130, G LED package 140, and B The LED package 150 can be divided into spatially distinct sections within the substrate 200, and the phosphor layer 120 is coated with the first LED chip 110 first coupled to the substrate 200. , R, G, B LED package 150, the space is divided for each device to prevent the phosphor layer 120 from infiltrating and mixing with each other. The partition wall 210 may be provided to surround each LED package 100, or may be provided so that the horizontal and vertical partition walls 210 intersect to separate the space where the LED packages 100 are combined. .

In this way, when the partition 210 that separates the space between devices is provided, when the phosphor layer 120 is coated on the substrate 200, the phosphor layer 120 penetrates into different devices and different colors are mixed to emit light of the desired color. You can prevent problems in advance.

The color control unit is a component that adjusts the intensity of the voltage delivered to the R LED package 130, G LED package 140, and B LED package 150 to vary the colors emitted by the RGB chip 10. . The color adjustment unit may be included in the RGB chip 10, and may be provided in a lighting fixture in which the RGB chip 10 is arranged to adjust the color. The color control unit can be provided in a variety of ways, such as a dial method or a switch method. A switch that only controls brightness and a color control switch can be provided separately, and the intensity of each R, G, and B color can be adjusted separately. It can be. However, even when all of the R, G, and B LED packages 150 are not provided or other LED packages 100 are provided, the color can be expressed by adjusting the intensity of the voltage delivered to the LED package 100 of the corresponding combination. Of course, these can be changed in various ways.

Providing a color control unit like this has the effect of allowing the RGB chip 10 to emit light of a user's desired color by adjusting the intensity of the voltage delivered to each of the R, G, and B LED packages 150.

Next, through the first and second sterilization experiments, we examine the sterilization effect of the substrate 200 into which the LED package 100 with a central wavelength of 405 nm and the infrared LED package 400 with a central wavelength of 850 nm are inserted.

Figure 4 is a photograph showing the results of the first sterilization experiment of the substrate 200 into which the LED package 100 of the present invention and the infrared LED package 400 are inserted, and Figure 5 is a photograph showing the results of the first sterilization experiment of the LED package 100 of the present invention and the infrared LED package 400. This table shows the results of the first sterilization experiment of the substrate 200 into which the LED package 400 is inserted. Referring to Figures 4 and 5, the test strain in the first sterilization experiment is Staphylococcus aureus ATCC 6538, and the LED package 100 and the infrared LED package 400 are inserted into the medium inoculated with the test strain. The reduction rate was measured by exposure at a distance of 80 mm from the substrate 200. <a> in Figure 4 is a photograph after 0h, and <b> in Figure 4 is a photograph after exposure for 8h, and it can be confirmed with the naked eye that the test strain has been sterilized and disappeared. Referring to Figure 6, it can be seen that there is a 99.9% sterilization effect after 8 hours.

Figure 6 is a table showing the results of the second sterilization experiment of the LED package 100 of the present invention and the substrate 200 into which the infrared LED package 400 is inserted. Referring to FIG. 6, the second sterilization experiment was performed using an LED package (100) and an infrared LED package (400) for human respiratory syncytial virus, rotavirus A, and human coronavirus. This is a sterilization test of the inserted substrate 200. This is data measured over time by irradiating viruses at a distance of 15 mm from the substrate 200 into which the LED package 100 and the infrared LED package 400 are inserted. If the log reduction value is 4 or more, the sterilization effect is 99.99% or more. If it is 5 or more, it indicates a sterilization effect of 99.999% or more. When the substrate 200 with the LED package 100 and the infrared LED package 400 inserted is irradiated for 60 minutes, the log reduction value of respiratory syncytial virus and human coronavirus is 5 or more, so it can be seen that there is a sterilization effect of more than 99.999%. It can be seen that the 60-minute result for rotavirus has a log reduction value of 4 or more, indicating a sterilization effect of more than 99.99%. If the LED package 100, which has been proven to have a sterilizing effect, and the substrate 200 into which the infrared LED package 400 is inserted are used as lighting, the sterilizing effect can be continuously achieved.

The preferred embodiments of the present invention described above have been disclosed for illustrative purposes, and those skilled in the art will be able to make various modifications, changes, and additions within the spirit and scope of the present invention, and such modifications, changes, and additions will be possible. should be regarded as falling within the scope of the above patent claims.

Those of ordinary skill in the technical field to which the present invention pertains can make various substitutions, modifications and changes without departing from the technical spirit of the present invention. Therefore, the present invention is limited to the above-described embodiments and the accompanying drawings. It is not limited by

In the above-described exemplary system, the methods are described on a flowchart basis as a series of steps or blocks; however, the invention is not limited to the order of the steps, and some steps may occur simultaneously or in a different order than other steps as described above. You can. Additionally, those skilled in the art will understand that the steps shown in the flowchart are not exclusive and that other steps may be included or one or more steps in the flowchart may be deleted without affecting the scope of the present invention.

10: RGB chip
100: LED package 110: first LED chip
120: phosphor layer 121: phosphor
122: Epoxy resin
130: R LED package 140: G LED package
150: B LED package 160: W LED package
200: substrate 210: partition wall
400: Infrared LED package

Claims (9)

A first LED chip 110 that emits light with a central wavelength of 400 to 410 nm;
It includes; an LED package 100 including a phosphor layer 120 formed on the first LED chip 110,
The LED package 100,
R LED package 130 emitting red; and
G LED package 140 emitting green light; Including,
An RGB chip including a substrate 200 on which the LED package 100 is disposed.
According to claim 1,
The LED package 100,
An RGB chip further comprising a B LED package 150 that emits blue light.
The method of claim 1 or 2,
An RGB chip further comprising a sterilizing unit that emits light with a central wavelength of 222 nm.
According to claim 1 or 2,
The LED package 100,
An RGB chip further comprising a W LED package 160 that emits white light.
According to claim 1,
The LED package 100,
W LED package (160) that emits white light with a color temperature of 4000K
An RGB chip further comprising a WW LED package 160 that emits white light with a color temperature of 2500K.
According to claim 1,
An RGB chip further comprising an infrared LED package 400 including a second LED chip emitting light with a central wavelength of 845 to 855 nm.
According to claim 3,
An RGB chip including a color control unit that changes color by adjusting the intensity of the voltage delivered to the R LED package 130, G LED package 140, and B LED package 150.
According to claim 1,
The substrate 200 is,
An RGB chip, characterized in that it includes a partition wall 210 that divides the LED package 100 into sections so that they are spatially distinguished from each other.
According to claim 3,
The RGB chip 10 further includes a sensor,
The sensor is provided as one of a contamination detection sensor, a motion detection sensor, or a heat detection sensor,
The RGB chip further includes a control unit that controls the RGB chip 10 and the sterilization unit based on the information sensed by the sensor.

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