JP2007311663A - Manufacturing method for light emitting device, light emitting device, and manufacturing apparatus for light emitting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a semiconductor light emitting device which is suppressed in variance in chromaticity without using a mechanism uniformly mixing a fluorescent substance in resin, and can form an LED package including the fluorescent substance; and to provide a manufacturing method and a manufacturing apparatus. <P>SOLUTION: In the manufacturing method for the light emitting device having an LED element 3, the fluorescent substance 11 which absorbs at least part of light emitted by the LED 3 and performs wavelength conversion to illuminate, and the resin 13 sealing the LED element 3 and fluorescent substance 11; the fluorescent substance 11 and resin 13 are provided on the LED element 3 without being mixed in advance. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention is a light emitting device comprising a light emitting device, a wavelength conversion light emitting material that absorbs at least a part of light emitted from the light emitting device, emits light after wavelength conversion, and a resin that seals the light emitting device and the fluorescent material. The present invention relates to a device manufacturing method, a light emitting device, and a light emitting device manufacturing apparatus.

  An LED (light emitted diode) is a semiconductor element that efficiently emits light with a small size and vivid colors. Since it is a semiconductor element, there is no fear of ball breakage, it has excellent initial drive characteristics, and it is resistant to repeated vibration and lighting. Therefore, it is widely used as various light sources.

  In addition, the LED can emit light at various emission wavelengths ranging from ultraviolet to infrared depending on the semiconductor material of the light emitting layer and the formation conditions. Furthermore, by combining a substance for wavelength conversion (phosphor, fluorescent substance, wavelength conversion luminescent substance) with a LED to form a light emitting device, a light emitting device that emits light at a very sharp specific wavelength can be created, or the LED element itself A light-emitting device is known in which the chromaticity for visual recognition is changed by mixing the color of the emitted light and the color of the phosphor.

  As described above, LEDs have excellent points as light emitting devices, and white light emitting devices have been put to practical use as light sources for illumination. In a conventional white light emitting device, three LED elements having emission colors of red, blue, and green are put in one package and are turned on simultaneously to obtain white. However, with this method, the amount of heat generated by the LED element increases, and sufficient luminance cannot be obtained. Further, since it is necessary to mount LED elements for three colors, it is not suitable for downsizing.

  Therefore, by putting the phosphor in the package, the color of the LED that emits light in blue or purple, and the phosphor that absorbs the light emission of the LED as excitation light and emits light of a wavelength such as yellow as fluorescence or phosphorescence. A pseudo-white LED that mixes colors and obtains a white color is becoming mainstream.

  The phosphor is generally composed of an activator and a base material that is a substance containing the activator. The activator absorbs excitation light and emits light having a wavelength longer than that of the excitation light through a relaxation process. In addition, the base material is used for adjusting the efficiency of the activator to absorb excitation light, the light emission efficiency, and the like. For example, in the YAG phosphor that is the most common phosphor, the main activator is Ce atoms and the base material is YAG crystals.

  As the structure of the LED in which the phosphor is incorporated in the package as described above, for example, the phosphor is composed of the lead frame 102 shown in FIG. 13A or 13B, FIG. 14A, or FIG. LED which obtains white light by putting it in the sheet-like package shown in FIG. Further, as a forming method, a method in which a conventional method for producing a monochromatic LED is developed has been devised. For example, in a conventional method for producing a monochromatic LED, the LED element 103 is fixed to the lead frame 102 with the cup 101 by die bonding or wire bonding, and then sealing is performed by injecting a transparent resin. The LED element 103 is connected to an external electrode (not shown) by a gold wire 104, and the LED can emit light by applying a voltage to the external electrode.

When an LED that changes chromaticity or a pseudo-white LED is made using a phosphor, a method of making the phosphor mixed with a transparent resin for sealing the LED element 103 is generally used. For example, in the method disclosed in Patent Document 1, as shown in FIG. 15, a phosphor is mixed with a transparent resin for sealing the LED element 103 and formed. Further, the method of Patent Document 2 discloses a method of sealing a phosphor-containing resin by stencil printing. Further, Patent Document 3 discloses a method of applying a coating liquid containing a phosphor in the form of a mist.
JP 10-233533 (released September 2, 1998) JP 2000-223750 (Aug. 11, 2000) JP2003-115614 (released on April 18, 2003)

  However, the above-described conventional light emitting device manufacturing method, light emitting device, and light emitting device manufacturing apparatus have the following problems.

  As shown in FIG. 15, the specific gravity of the phosphor 211 is generally different from the specific gravity of the resin 213 used for sealing. In general, the specific gravity of the phosphor 211 is larger than the specific gravity of the resin 213. When the LED is sealed by mixing the phosphor 211 and the resin 213 at the time of sealing, in the process of applying the mixture of the phosphor 211 and the resin 213 to the LED element 203 for the formation, the phosphor having a large specific gravity is used. 211 is gradually pulled down due to gravity. Therefore, the concentration of the phosphor 211 contained in the resin 213 differs between the lot where the LED element 203 is generated and the lot formed at the end, and the distribution of the phosphor concentration between the formed LEDs It has a problem of causing variation in chromaticity.

  Also in the process of forming the individual LED elements 203, the phosphor 211 having a large specific gravity is pulled down by gravity and gradually settles. For this reason, the spatial distribution of the phosphor 211 in the LED varies, resulting in variations in chromaticity or uneven color. This phenomenon may occur if the specific gravity of the phosphor 211 and the resin 213 is fundamentally different, and may occur even if the specific gravity of the phosphor 211 is smaller than that of the resin 213.

  Therefore, Patent Document 1 discloses that a screw is placed in a syringe and agitated to suppress sedimentation of the phosphor 211. However, although this method seems to tend to suppress variations in chromaticity between LEDs, it is still insufficient to make the concentration distribution of the phosphor 211 having a specific gravity different from that of the resin 213 uniform. I don't think so. Furthermore, in this method, it is not possible to control the variation in the spatial distribution of the phosphor 211 in the LED. Further, when the maintenance of the apparatus is troublesome or the apparatus stops for some reason, the distribution state of the phosphor 211 in the resin 213 also changes. Therefore, a large amount of disposal is performed to readjust the concentration of the phosphor. Seems to have the problem of needing. Attempts have also been made to reduce the temperature of the resin 213 to increase the viscosity and to reduce the sedimentation of the phosphor 211. However, it does not solve the problem that the concentration distribution of the phosphor 211 is not uniform due to the difference in specific gravity between the phosphor 211 and the resin 213, and it is necessary to spray dry air as a countermeasure against condensation. Is the cause of pushing up.

  The phosphor 211 used in the LED is also made of a material having high hardness and polishing properties. Therefore, when these phosphors 211 are manufactured using a device that stirs with a screw, the inside of the stirring device is polished by the phosphors 211. As a result, not only the stirring bowl needs to be replaced, but there is a risk that the polishing residue is mixed in the LED together with the phosphor 211 and adversely affects the quality of the product.

  In the method of homogenizing the concentration of the phosphor 211 disclosed in Patent Document 2, the dispersion state of the phosphor 211 after injecting a mixture of the phosphor 211 and the resin 213 into the LED element 203 is described above. It seems that it is not fundamentally solved as well.

  Further, Patent Document 3 discloses a method of dispersing a mixture of the phosphor 211 and the resin 213 in the LED element 203 in order to make the distribution of the phosphor 211 on the LED element 203 uniform. However, the necessity of uniformly dispersing the phosphor 211 in the resin 213 is not different from the above-mentioned Patent Document 1 and Patent Document 2, and a device is required for the method of uniformly dispersing the phosphor 211 in the resin 213. It seems to be.

  Furthermore, as the product package becomes smaller, the required amount of the phosphor 211 has become very small. Current manufacturing processes may require 1 mg or less, which is less than the minimum resolution of currently used mass meters. When this happens, it is no longer possible to accurately weigh in by mass. Even when such a minute amount is measured by volume, there is a possibility that variations in the volume of the container itself may affect the amount of the phosphor 211 to be injected.

  The present invention has been made in view of the above problems, and its object is to provide a method for manufacturing a light emitting device, a light emitting device, and a light emitting device capable of suppressing variations in chromaticity based on a mixed state of a phosphor and a resin. The object is to realize a light-emitting device manufacturing apparatus.

  In order to solve the above-described problems, a light-emitting device of the present invention absorbs at least a part of light emitted from the light-emitting element, converts the wavelength, and emits light after wavelength conversion, the light-emitting element, and the light-emitting element. In a method for manufacturing a light-emitting device having a resin for sealing a wavelength-converting luminescent material, the wavelength-converted luminescent material and the resin are provided on the light-emitting element without being mixed in advance.

  According to the invention, since the light emitting device is provided on the light emitting element without mixing the wavelength converting light emitting substance and the resin in advance, the wavelength converting light emitting substance and the resin are provided on the light emitting element. In the time until solidification, the mixed state of the wavelength-converting light-emitting substance and the resin changes, and variations in chromaticity do not occur.

  In the light emitting device of the present invention, it is preferable that the wavelength conversion light emitting substance and the resin are separately provided on the light emitting element.

  Thereby, since the wavelength conversion luminescent substance and the resin are separately provided on the light emitting element, the amount of the wavelength conversion luminescent substance and the resin injected into the light emitting element can be directly measured. .

  In the light emitting device of the present invention, the wavelength conversion light emitting substance and the resin may be provided on the light emitting element at the same time.

  Thus, by providing the wavelength converting luminescent substance and the resin on the light emitting element at the same time, the amount to be injected can be directly measured and provided in a short time.

  In the light-emitting device of the present invention, it is preferable that the wavelength-converted light-emitting substance and the resin are repeatedly provided on the light-emitting element.

  Thereby, the distribution of the wavelength-converted luminescent material can be changed, and a plurality of types of the wavelength-converted luminescent materials can be distributed at desired positions.

  In the light-emitting device of the present invention, the wavelength-converted light-emitting substance is preferably a mixture of a substance composed of a base material and an activator that is a light emitter and a base material.

  As a result, the wavelength-converted luminescent material is a mixture of the wavelength-converted luminescent material and a substance composed only of the base material of the wavelength-converted luminescent material. Even if it is kept constant, the total amount of the wavelength-converting luminescent material can be adjusted.

  In the light emitting device of the present invention, the wavelength conversion light emitting material may be a fluorescent material or a phosphorescent material.

  The method for manufacturing a light-emitting device of the present invention includes a step of placing the light-emitting element in at least one first container for providing a resin, and a first container in which the wavelength-converted light-emitting substance is placed in the light-emitting element. Preferably, the method includes a step of injecting each of the first and second wavelengths, and a step of measuring by tilting the first container into which the wavelength-converting luminescent material has been injected.

  As a result, the wavelength-converted luminescent material is placed in a first container in which the light-emitting element is placed, and the wavelength-converted luminescent material is weighed by tilting the first container and is provided on the light-emitting element. It is done.

  In the method for manufacturing a light emitting device of the present invention, the light emitting element is placed in at least one first container for providing a resin, and the wavelength conversion light emitting substance is provided in the same number as the first container. A step of injecting into the second container, a step of measuring the second container into which the wavelength-converted luminescent material has been injected, and a step of injecting the wavelength-converted luminescent material in the second container after the measurement into the first container; It is preferable to contain.

  Accordingly, the wavelength conversion luminescent material is weighed by the second container. And the said wavelength conversion light-emitting substance is inject | poured into the 1st container which put the said light emitting element.

  In the method for manufacturing a light emitting device of the present invention, it is preferable to measure the wavelength-converted luminescent material by tilting the second container.

  Thereby, the wavelength conversion luminescent substance is weighed by tilting the second container.

  In the method for manufacturing a light emitting device of the present invention, it is preferable to measure the wavelength-converted luminescent material by scraping the upper edge of the second container.

  Thereby, the wavelength conversion luminescent substance is weighed by scraping the upper edge of the second container.

  In the method for manufacturing a light-emitting device of the present invention, it is preferable that a wavelength-converted light-emitting substance is provided on the light-emitting element by overlapping the first container and the second container and turning them over.

  Accordingly, the wavelength-converting luminescent material can be provided on the light-emitting element by overlapping the first container and the second container and turning them over. For this reason, even when there are a plurality of the first containers, the wavelength-converting light-emitting substance can be provided in the light-emitting element in a lump.

  In the method for producing a light emitting device of the present invention, it is preferable to remove excess wavelength converted luminescent material with an adhesive sheet when measuring the wavelength converted luminescent material.

  Accordingly, when the wavelength-converted luminescent material is weighed, the excess wavelength-converted luminescent material is removed by the adhesive sheet.

  In the method for manufacturing a light emitting device of the present invention, the light emitting element is placed in at least one first container for providing a resin, and the wavelength converted light emitting substance is weighed by a measuring means, and then the wavelength of the light emitting device is measured. And injecting the converted luminescent material into the first container.

  As a result, the wavelength-converted luminescent material is placed in the first container in which the light-emitting element is placed, and the wavelength-converted luminescent material can be measured by the measuring means and injected into the first container. .

  In the method for manufacturing a light emitting device of the present invention, it is preferable that the measuring means includes a cylindrical member, and the wavelength converted luminescent material is measured by allowing the cylindrical member to enter the wavelength converted luminescent material.

  Accordingly, the wavelength-converted luminescent material can be measured by allowing the cylindrical member to enter the wavelength-converted luminescent material.

  In the method for manufacturing a light emitting device according to the present invention, it is preferable that the measuring means includes a piston that moves forward and backward within the cylindrical member, and the capacity for measuring the wavelength-converted luminescent substance is changed by the piston.

  As a result, the piston moves forward and backward in the cylindrical member, and the capacity of the cylindrical member for measuring the wavelength-converted luminescent material can be changed, so that the wavelength-converted luminescent material can be measured in a desired amount. .

  In the method of manufacturing a light emitting device according to the present invention, the weighing means causes the cylindrical member to enter the wavelength converted luminescent material from above the third container containing the wavelength converted luminescent material. Is preferably measured.

  As a result, the wavelength-converted luminescent material measuring means can measure the wavelength-converted luminescent material.

  The manufacturing method of the light emitting device of the present invention is to move the third container containing the wavelength converted luminescent material, weigh the wavelength converted luminescent material by allowing the wavelength converted luminescent material to enter the cylindrical member, Thereafter, it is preferable that the first container containing the light emitting element is moved to a position where the cylindrical member is present, and the wavelength-converted luminescent material weighed by the cylindrical member is placed in the first container.

  As a result, the wavelength-converted light-emitting substance metering means does not move, and the third container containing the wavelength-converted light-emitting substance advances and moves to allow the wavelength-converted light-emitting substance to enter the cylindrical member. After the substance is weighed, the first container containing the light emitting element is moved to a position where the cylindrical member is present, and the wavelength conversion luminescent substance weighed by the cylindrical member can be put into the first container. .

  For this reason, when the wavelength-converted luminescent material measuring means is brought close to the first container for providing the resin from the third container containing the wavelength-converted luminescent material, the wavelength-converted luminescent material is dropped by vibration due to movement. The fear of making it disappear.

  In the method for manufacturing a light emitting device of the present invention, it is preferable that the weighing means measures the wavelength converted luminescent material from different positions in the third container containing the wavelength converted luminescent material for each measurement.

  Thereby, the weighing means can measure the wavelength-converted luminescent material from different positions in the third container containing the wavelength-converted luminescent material for each measurement, so that the wavelength-converted luminescent material is stabilized. Can be weighed.

  In the method for manufacturing the light emitting device of the present invention, it is preferable that the third container containing the wavelength conversion luminescent material is vibrated to make the wavelength conversion luminescent material uniform.

  As a result, the third container containing the wavelength-converted luminescent material vibrates and the wavelength-converted luminescent material is leveled, so that the wavelength-converted luminescent material can be stably metered.

  In the method for manufacturing a light emitting device of the present invention, the step of placing the light emitting element in at least one first container for providing a resin, and the amount of the wavelength conversion luminescent material to be injected into the first container are determined. A step of determining the amount of the resin that penetrates the wavelength-converted luminescent material without excess, a step of providing the resin on the light-emitting element, and an amount of the wavelength-converted luminescent material that penetrates the resin. A step of injecting a large amount of the wavelength-converted luminescent material, and measuring the wavelength-converted luminescent material by removing from the first container the wavelength-converted luminescent material that has not penetrated into the resin in the step. Preferably including a step.

  Thereby, the amount of the wavelength-converted luminescent material to be injected into the first container is first determined. And the quantity of the said resin which the said wavelength conversion luminescent substance osmose | permeates without excess and deficiency is determined, and the said resin can be provided on the said light emitting element.

  Next, the wavelength conversion luminescent material is injected into the first container. Even if a larger amount of the wavelength-converting luminescent material is injected than the amount that penetrates the resin, the amount of the wavelength-converted luminescent material that can penetrate into the resin is determined by the amount of the resin previously provided. Is done. Therefore, after the wavelength-converted luminescent material is injected into the first container, the wavelength-converted luminescent material can be measured by removing the wavelength-converted luminescent material that has not penetrated into the resin from the first container. it can.

  The method for manufacturing a light-emitting device of the present invention includes a step of placing the light-emitting element in at least one first container for providing the resin, and an amount of the wavelength-converted luminescent material injected into the first container. Determining the volume of the resin necessary for adhering the wavelength-converting luminescent material to the surface of the first container without excess and deficiency, and providing the resin on the light-emitting element Removing the resin from the first container, injecting a larger amount of the wavelength-converted luminescent material than the wavelength-converted luminescent material that penetrates the resin, and further penetrating the resin in the step. Preferably, the step of measuring the wavelength-converted luminescent material by removing the wavelength-converted luminescent material that has not been removed from the first container.

  Thereby, the amount of the wavelength-converted luminescent material to be injected into the first container is first determined. Then, the injection amount of the resin necessary for the wavelength-converting luminescent material to adhere to the surface of the first container without excess or deficiency is determined. Next, the resin is poured into the first container, and further removed from the first container to wet the surface of the first container with the resin.

  Next, the wavelength-converted luminescent material is injected into the first container, and the wavelength-converted luminescent material is infiltrated into the resin. Even if a larger amount of the wavelength-converting luminescent material is injected than the amount that penetrates the resin, the amount of the wavelength-converted luminescent material that can permeate the resin is wet with the resin previously provided. Determined by surface area. Therefore, after the wavelength-converted luminescent material is injected into the first container, the wavelength-converted luminescent material that has not penetrated into the resin is removed from the first container to measure the wavelength-converted luminescent material. Can do.

  In the method of manufacturing a light emitting device according to the present invention, the step of injecting the wavelength conversion luminescent material includes the step of covering the first container with a mask having a hole smaller than the opening of the first container, and the wavelength conversion. Injecting the luminescent material into the first container through the mask.

  Accordingly, the wavelength-converted luminescent material is injected into the light emitting element through a mask having a hole smaller than the opening of the first container.

  In the method for manufacturing a light emitting device of the present invention, after the step of providing the wavelength conversion luminescent material on the light emitting element, the step of vibrating the first container so that the wavelength conversion luminescent material is leveled. It is preferable that it is further included.

  As a result, the wavelength-converting luminescent material is provided on the light-emitting element and then leveled by vibration, so that the wavelength-converted luminescent material is evenly provided on the light-emitting element.

  It is preferable that the manufacturing method of the light-emitting device of this invention includes the process of providing resin in multiple times after the process of providing the said wavelength conversion light-emitting substance.

  Accordingly, since the resin is provided in a plurality of times after the step of providing the wavelength conversion luminescent material, the distribution of the wavelength conversion luminescent material is disrupted by the momentum when the wavelength conversion luminescent material injects the resin. There is no.

  The method for manufacturing a light-emitting device of the present invention preferably includes a step of solidifying the resin in the middle in the step of providing the resin in a plurality of times.

  Thereby, in the step of providing the resin in a plurality of times, the wavelength-converted luminescent material and the resin are solidified by the step of solidifying the resin in the middle. The distribution of the wavelength conversion luminescent material is not disturbed.

  The manufacturing method of the light-emitting device of the present invention includes a step of entering excitation light for exciting the wavelength-converted light-emitting substance contained in the first container for providing the resin, and the excitation emitted from the first container. Measuring the luminance and chromaticity of light emitted from the wavelength-converted luminescent substance by the light and the excitation light, and the wavelength injected into the first container by the luminance and the chromaticity And measuring the amount of the converted luminescent material.

  Thus, the amount of the wavelength-converted luminescent material injected into the first container can be measured according to the luminance and chromaticity of the light emitted when the wavelength-converted luminescent material is excited by the excitation light and the excitation light. The chromaticity of the first container can be optimized.

  In the light emitting device manufacturing method of the present invention, it is preferable that the excitation light causes the light emitting element in the first container to light.

  Thereby, the light emitting element can be used as a light source of the excitation light.

  In the method for manufacturing a light emitting device of the present invention, the excitation light causes the excitation light to be emitted by an excitation light source outside the first container, and the wavelength conversion luminescent substance is excited in the first container. Preferably including an excitation light incident step.

  Accordingly, excitation light for exciting the wavelength-converted luminescent substance is incident on the first container using an excitation light source outside the first container. As a result, the amount of the wavelength-converted luminescent material injected into the first container can be measured, and the chromaticity of the first container can be optimized.

  In the method for manufacturing a light emitting device of the present invention, it is preferable that the excitation light source outside the first container is constituted by the light emitting element.

  Thereby, the excitation light emitted from the excitation light source can have the same optical characteristics as the light emitting element.

  The method for producing a light emitting device of the present invention includes the step of measuring the excitation light emitted from the first container, and the luminance and chromaticity of light emitted when the wavelength conversion luminescent substance is excited by the excitation light, and It is preferable to adjust the chromaticity, including a step of measuring a mixture of a substance composed of a base material and an activator that is a light emitter and a base material, and a step of providing the mixture in the first container.

  Thus, based on the measured luminance and chromaticity, the chromaticity of the light-emitting device can be adjusted by a mixture of the base material and a substance composed of an activator that is a light emitter and the base material.

  The light-emitting device of the present invention is manufactured by the above-described method for manufacturing a light-emitting device.

  According to said invention, the light-emitting device which can suppress the dispersion | variation in chromaticity is realizable, without using the mechanism which mixes fluorescent substance and resin beforehand.

  In order to solve the above-described problems, a light-emitting device manufacturing apparatus according to the present invention is a light-emitting device manufacturing apparatus used in the method for manufacturing a light-emitting device according to any one of claims 1 to 6, wherein the light-emitting element is used. A wavelength-converted light-emitting substance injection means for providing a wavelength-converted light-emitting substance that absorbs at least a part of the light emitted from the light source and converts the wavelength to emit light; and a resin injection means for providing a resin in the light-emitting element, The substance injecting means and the resin injecting means are characterized in that the wavelength conversion light emitting substance and the resin are provided on the light emitting element without being mixed in advance.

  According to the invention, since the wavelength-converting luminescent substance injection means and the resin injection means are provided, the wavelength-converted luminescent substance injection means and the resin injection means include the wavelength-converted luminescent substance and the resin in advance. It can be injected and provided on the light emitting element without mixing.

  In the light emitting device manufacturing apparatus of the present invention, the light emitting element is placed in at least one first container for forming the resin, and the wavelength conversion luminescent material injection means includes the wavelength conversion luminescent material. Is preferably weighed by placing it in the first container and tilting the container.

  Thereby, the wavelength-converted luminescent material is put into the first container in which the light-emitting element is put by the wavelength-converted luminescent material injection means. Further, the wavelength conversion luminescent substance is weighed by tilting the first container and provided on the light emitting element.

  The light-emitting device manufacturing apparatus of the present invention further includes wavelength-converted luminescent material measuring means for measuring the wavelength-converted luminescent material, and the light-emitting element is placed in at least one first container for providing the resin. The wavelength-converting luminescent material measuring means has a measuring container for measuring the wavelength-converted luminescent material, and measures the wavelength-converted luminescent material by tilting the wavelength-converted luminescent material measuring means, and the wavelength-converted luminescent material. Preferably, the injection means provides the first container with the wavelength-converted luminescent substance weighed by the wavelength-converted luminescent substance measuring means.

  As a result, the wavelength-converted luminescent material is placed in a measuring container of the wavelength-converted luminescent material measuring means, and is measured by tilting the wavelength-converted luminescent material measuring means. The wavelength-converted luminescent material is injected into the first container containing the light-emitting element by the wavelength-converted luminescent material injection means.

  The light-emitting device manufacturing apparatus of the present invention further includes wavelength-converted luminescent material measuring means for measuring the wavelength-converted luminescent material, and the light-emitting elements are respectively provided in at least one first container for forming the resin. The wavelength-converting luminescent material measuring means has a measuring container for measuring the wavelength-converted luminescent material, measures the wavelength-converted luminescent material by scraping the upper edge of the measuring container, and converts the wavelength conversion It is preferable that the luminescent substance injecting means is provided in the first container with the wavelength converted luminescent substance weighed by the wavelength converted luminescent substance measuring means.

  As a result, the wavelength-converted luminescent material is placed in a measuring container of the wavelength-converted luminescent material measuring means, and is measured by scraping the upper edge of the measuring container. The wavelength-converted luminescent material is injected into the first container containing the light-emitting element by the wavelength-converted luminescent material injection means.

  In the light-emitting device manufacturing apparatus of the present invention, the wavelength-converting luminescent substance injecting means may provide the wavelength-converting luminescent substance on the light-emitting element by overlapping the measuring container and the first container and turning over. preferable.

  Accordingly, the wavelength-converting luminescent substance injecting means can provide the wavelength-converted luminescent substance on the light-emitting element by overlapping the measuring container and the first container and turning over. For this reason, even when there are a plurality of the first containers, the wavelength-converting light-emitting substance can be provided in the light-emitting element in a lump.

  The light-emitting device manufacturing apparatus of the present invention includes wavelength-converted luminescent material removing means for removing the wavelength-converted luminescent material, and the wavelength-converted luminescent material removing means has the wavelength-converted luminescent material measured by the wavelength-converted luminescent material measuring means. When weighing, it is preferable to remove excess wavelength-converted luminescent material by the wavelength-converted luminescent material removing means.

  In the light emitting device manufacturing apparatus of the present invention, it is preferable that the wavelength conversion light emitting substance removing means is an adhesive sheet.

  Accordingly, when the wavelength-converted luminescent material is weighed, excess wavelength-converted luminescent material can be removed by the wavelength-converted luminescent material removing means.

  The light-emitting device manufacturing apparatus of the present invention further includes wavelength-converted luminescent material measuring means for measuring the wavelength-converted luminescent material, and the light-emitting element is placed in at least one first container for providing the resin. The wavelength-converting luminescent substance metering means includes a cylindrical member, and measures the wavelength-converted luminescent substance by allowing the cylindrical member to enter the wavelength-converted luminescent substance. It is preferable to provide the first container with the wavelength-converted luminescent material weighed by the wavelength-converted luminescent material metering means.

  As a result, the wavelength-converted luminescent material metering means including the cylindrical member can measure the wavelength-converted luminescent material by causing the cylindrical member to enter the wavelength-converted luminescent material. Further, the wavelength conversion luminescent substance injection means can provide the first container with the wavelength conversion luminescent substance weighed by the wavelength conversion luminescent substance measuring means.

  In the light emitting device manufacturing apparatus according to the present invention, it is preferable that the wavelength conversion luminescent substance measuring means includes a piston that moves forward and backward within the cylindrical member, and changes a capacity for measuring the wavelength conversion luminescent substance by the piston. .

  As a result, the piston moves forward and backward in the cylindrical member, and the capacity of the cylindrical member for measuring the wavelength-converted luminescent material can be changed. Can be weighed in the desired amount.

  In the light-emitting device manufacturing apparatus according to the present invention, the wavelength-converted luminescent material measuring means measures the wavelength-converted luminescent material by allowing the cylindrical member to enter from above the third container containing the wavelength-converted luminescent material. It is preferable.

  Accordingly, the wavelength-converted luminescent material measuring means can measure the wavelength-converted luminescent material by allowing the cylindrical member to enter from above the third container containing the wavelength-converted luminescent material.

  The apparatus for manufacturing a light emitting device of the present invention moves the third container containing the wavelength converted luminescent material into the wavelength converted luminescent material metering means and causes the wavelength converted luminescent material to enter the cylindrical member. The wavelength-converted luminescent material is weighed by the above, and the first container containing the light-emitting element is moved to the wavelength-converted luminescent material measuring means to a position where the cylindrical member is present, and the cylindrical member is weighed. It is preferable to put the wavelength conversion luminescent substance in the first container.

  As a result, the wavelength-converted light-emitting substance metering means does not move, and the third container containing the wavelength-converted light-emitting substance advances and moves to allow the wavelength-converted light-emitting substance to enter the cylindrical member. After the substance is weighed, the first container containing the light emitting element is moved to a position where the cylindrical member is present, and the wavelength conversion luminescent substance weighed by the cylindrical member can be put into the first container. .

  For this reason, when the wavelength-converted luminescent material measuring means is brought close to the first container for providing the resin from the third container containing the wavelength-converted luminescent material, the wavelength-converted luminescent material is dropped by vibration due to movement. The fear of making it disappear.

  The light-emitting device manufacturing apparatus of the present invention further includes wavelength-converted light-emitting substance dispersing means, and the wavelength-converted light-emitting substance dispersing means is located at different positions in the third container containing the wavelength-converted light-emitting substance for each measurement. From the above, it is preferable to measure the wavelength-converted luminescent material.

  The wavelength-converting luminescent material is measured by the wavelength-converting luminescent material dispersing means because the measuring means measures the wavelength-converted luminescent material from a different position in the third container containing the wavelength-converted luminescent material for each measurement. Can be measured stably.

  In the light-emitting device manufacturing apparatus of the present invention, it is preferable that the wavelength-converted luminescent material dispersing means further vibrates the container containing the wavelength-converted luminescent material so that the wavelength-converted luminescent material is in a uniform state.

  As a result, the wavelength-converting luminescent material dispersing means vibrates the third container containing the wavelength-converted luminescent material, and the wavelength-converted luminescent material is in a uniform state, so that the wavelength-converted luminescent material is stabilized. Can be weighed.

  The light-emitting device manufacturing apparatus of the present invention further includes a resin metering unit, wherein the light-emitting element is placed in at least one first container for providing the resin, and the resin metering unit has the wavelength described above. The amount of the resin that penetrates the wavelength-converted luminescent material measured by the converted luminescent material measuring means without excess or deficiency is measured, and the resin injection means provides the resin on the light-emitting element, and the wavelength-converted luminescent material injection The means injects the wavelength-converted luminescent material in a larger amount than the wavelength-converted luminescent material that permeates the resin, and removes the wavelength-converted luminescent material that has not penetrated the resin from the first container. It is preferable that the wavelength-converting light-emitting substance is weighed, and that the resin injection means is provided with the resin on the light-emitting element.

  Thus, first, the wavelength-converted luminescent substance measuring means determines the amount of the wavelength-converted luminescent substance to be injected into the first container. The resin metering means can determine the amount of the resin that penetrates the wavelength-converting luminescent material without excess and deficiency, and the resin can be provided on the light emitting element by the resin injection means.

  Next, the wavelength conversion luminescent material injection means injects the wavelength conversion luminescent material into the first container. Then, the wavelength conversion luminescent material that has not penetrated into the resin is removed from the first container. And the said resin injection | pouring means can provide the said resin on the said light emitting element.

  Even if the wavelength-converting luminescent material injection means injects a larger amount of the wavelength-converted luminescent material than the amount that penetrates the resin, the amount of the wavelength-converted luminescent material that can penetrate the resin is first. It is determined by the amount of resin provided. Therefore, after the wavelength-converted luminescent material is injected into the first container, the wavelength-converted luminescent material that has not penetrated into the resin is removed from the first container to measure the wavelength-converted luminescent material. Can do.

  The light-emitting device manufacturing apparatus of the present invention further includes a resin metering unit, wherein the light-emitting element is placed in at least one first container for providing the resin, and the resin metering unit has the wavelength described above. The resin injection means measures the volume of the resin necessary for adhering the wavelength-converted luminescent substance measured by the converted luminescent substance measuring means to the surface of the first container without excess or deficiency. The wavelength conversion luminescent material injection means is provided in the first container, the resin is removed from the first container, and the wavelength conversion luminescent material injecting means penetrates the resin with a larger amount of the wavelength conversion luminescent material. The wavelength-converted luminescent material is injected and removed from the first container. The wavelength-converted luminescent material is weighed by removing the wavelength-converted luminescent material from the first container. It is preferable to provide on the child.

  Thus, first, the wavelength-converted luminescent substance measuring means determines the amount of the wavelength-converted luminescent substance to be injected into the first container. The resin metering means determines the injection amount of the resin necessary for the wavelength-converted luminescent material to adhere to the surface of the first container without excess or deficiency. Next, the resin injecting means injects the resin into the first container and further removes the resin from the first container to wet the surface of the first container with the resin.

  Next, the wavelength-converting luminescent substance injection means injects the wavelength-converted luminescent substance into the first container and allows the wavelength-converted luminescent substance to permeate the resin. Then, the wavelength conversion luminescent material that has not penetrated into the resin is removed from the first container. And the said resin injection | pouring means can provide the said resin on the said light emitting element.

  Even if the wavelength-converting luminescent material injection means injects a larger amount of the wavelength-converted luminescent material than the amount that penetrates the resin, the amount of the wavelength-converted luminescent material that can penetrate the resin is first. This is determined by the wetted surface area of the resin provided. Therefore, after the wavelength-converted luminescent material is injected into the first container, the wavelength-converted luminescent material that has not penetrated into the resin is removed from the first container to measure the wavelength-converted luminescent material. Can do.

  In the light-emitting device manufacturing apparatus according to the present invention, it is preferable that the wavelength-converting luminescent substance injection unit injects the wavelength-converted luminescent substance from a mask having a hole smaller than the opening of the first container.

  Accordingly, the wavelength conversion luminescent material injection means injects the wavelength conversion luminescent material into the light emitting element through a mask having a hole smaller than the opening of the first container.

  The apparatus for manufacturing a light emitting device of the present invention further includes a forming container dispersion unit that vibrates the first container for providing the resin so that the wavelength conversion luminescent material is in a uniform state, and the light emitting element includes: Each of the forming containers is dispersed in at least one first container for providing the resin, and the forming container dispersing means vibrates the first container after the wavelength conversion luminescent material is provided on the light emitting element. Thus, it is preferable that the wavelength-converted luminescent material is in a uniform state.

  As a result, the forming container dispersing means equalizes the wavelength-converted light-emitting substance after being provided on the light-emitting element by vibration, so that the wavelength-converted light-emitting substance is evenly provided on the light-emitting element.

  In the light-emitting device manufacturing apparatus of the present invention, the wavelength-converted light-emitting substance is provided on the light-emitting element by the wavelength-converting light-emitting substance injection means, and a small amount of resin is provided on the light-emitting element by the resin injection means. After that, the resin is preferably provided on the light emitting element by the resin injection means.

  Accordingly, since the resin is provided in a plurality of times after the step of providing the wavelength conversion luminescent material, the distribution of the wavelength conversion luminescent material is disrupted by the momentum when the wavelength conversion luminescent material injects the resin. There is no.

  In the light-emitting device manufacturing apparatus of the present invention, the wavelength-converted light-emitting substance is provided on the light-emitting element by the wavelength-converting light-emitting substance injection means, and a small amount of resin is provided on the light-emitting element by the resin injection means. After that, it is preferable to wait until the resin is hardened, and further to provide the resin on the light emitting element by the resin injection means.

  Thereby, in the step of providing the resin divided into a plurality of times, the wavelength-converted luminescent material and the resin are solidified by the step of hardening the resin in the middle, so that the wavelength-converted luminescent material is The distribution of the wavelength conversion luminescent material is not disturbed.

  The light-emitting device manufacturing apparatus of the present invention further includes chromaticity measuring means, and the chromaticity measuring means makes excitation light that excites the wavelength-converted luminescent material incident on the first container for forming the resin. The luminance and chromaticity of light emitted from the excitation light emitted from the first container and the wavelength-converted luminescent material excited by the excitation light are measured, and the first luminance is measured based on the luminance and chromaticity. It is preferable to measure the amount of the wavelength-converted luminescent material applied to the container.

  As a result, the chromaticity measuring means measures the luminance and chromaticity of the light emitted when the wavelength conversion luminescent substance is excited by the excitation light and the excitation light, and the first container has the optimum chromaticity. The amount of the wavelength conversion luminescent material can be measured. As a result, the amount of the wavelength-converted luminescent material injected into the first container can be measured, and the chromaticity of the first container can be optimized.

  In the light emitting device manufacturing apparatus of the present invention, the excitation light preferably lights the light emitting element in the first container.

  Thereby, the light emitting element can be used as a light source of the excitation light.

  In the manufacturing apparatus of the present invention, the chromaticity measuring means further includes the excitation light emitting means outside the first container, and the chromaticity measuring means emits the light emission from outside the first container. Preferably, the means emits light, and excitation light for exciting the wavelength-converted luminescent material is incident on the first container.

  As a result, the chromaticity measuring means uses the excitation light emitting means to make excitation light that excites the wavelength-converted luminescent substance enter the first container. The amount of the wavelength-converting luminescent material injected into the first container can be measured, and the chromaticity of the first container can be optimized.

  In the light emitting device manufacturing apparatus of the present invention, it is preferable that the light emitting means outside the first container is composed of the light emitting element.

  Thereby, the excitation light emitted from the light emitting means can have the same optical characteristics as the light emitting element.

  In the light emitting device manufacturing apparatus of the present invention, the chromaticity measuring means includes the excitation light emitted from the first container, and the luminance and chromaticity of light emitted by the wavelength conversion light emitting material being excited by the excitation light. The wavelength-converted luminescent substance measuring means measures a mixture of a substance composed of a base material to be injected and an activator that is a luminescent material and a base material based on the luminance and the chromaticity, and Preferably, the wavelength-converting luminescent substance injection means is provided with the wavelength-converted luminescent substance measured by the wavelength-converted luminescent substance measuring means in the first container.

  Thus, based on the luminance and the chromaticity measured by the chromaticity measuring means, the chromaticity of the light emitting device is further adjusted by a mixture of a base material and a substance composed of an activator that is a light emitter and a base material. Can be adjusted.

  As described above, the method for manufacturing a light-emitting device of the present invention is a method in which a wavelength-converted light-emitting substance and a resin are applied and formed on the light-emitting element without being mixed in advance.

  Therefore, there is an effect of realizing a method for manufacturing a light emitting device that can suppress variations in chromaticity without using a mechanism for mixing phosphor and resin in advance.

  The light-emitting device of the present invention is a light-emitting device manufactured by the above-described method for manufacturing a light-emitting device.

  Therefore, there is an effect of realizing a light emitting device that can suppress variations in chromaticity without using a mechanism for mixing phosphor and resin in advance.

  Further, the manufacturing apparatus of the present invention includes a wavelength-converted luminescent material injection means for providing a wavelength-converted luminescent material that absorbs at least a part of light emitted from the light-emitting element and converts the wavelength to emit light, and a resin for providing a resin to the light-emitting element. A light-emitting device manufacturing apparatus provided on a light-emitting element without previously mixing the wavelength-converted light-emitting substance and the resin. It is.

  Therefore, there is an effect of realizing a light emitting device manufacturing apparatus that can suppress variations in chromaticity without using a mechanism that mixes phosphor and resin in advance.

[Embodiment 1]
An embodiment of the present invention will be described below with reference to FIGS.

  Note that the LED package forming method including the phosphor of the present embodiment (wavelength-converting luminescent material, phosphor material, phosphorescent material) can be used directly without mixing the phosphor and the sealing resin in a separate container in advance. It is characterized by being formed by injecting into a package forming container.

  The phosphor referred to in this embodiment refers to a substance that absorbs excitation light and emits light having a wavelength longer than that of the excitation light through a relaxation process. The phosphor is generally composed of an activator and a base material which is a substance containing the activator, and the activator exerts the above-described wavelength conversion effect. In the following embodiments, a fluorescent substance is described as an example of a phosphor activator. However, the activator is not limited to this, and may be a phosphorescent substance or incident light. Any substance that converts the wavelength of light may be used.

  Further, in the description, the LED formed in the cup type is described, but the forming method of the present embodiment is not limited to the cup type LED package. For example, the method can be applied to a bullet type LED. It is.

  Furthermore, the light source is not limited to the LED, and may be a light emitting device that includes the phosphor of the present embodiment in a light emitting device that uses a laser as an excitation light source, for example. Further, for example, in a display device using an organic EL as an excitation light source, the phosphor of this embodiment may be included, and a method of obtaining three colors of RGB may be configured.

  First, FIG. 2 shows a cross section of the LED package.

  As shown in FIG. 2, in the present embodiment, the LED element 3 is first fixed to the lead frame 2 with the LED cup 1 by die bonding or wire bonding. The LED element is connected to an external electrode (not shown) by a gold wire 4, and the LED can emit light by applying a voltage to the external electrode.

  Next, the phosphor 11 and the resin 13 are poured into the LED cup 1 without being separately mixed in a container in advance. The order of injection into the LED cup 1 may be such that the phosphor 11 is put first and the resin 13 is put later, or the resin 13 is put first and the phosphor 11 is put later. Furthermore, the resin 13 may be put first, then the phosphor 11 may be put, and then the resin 13 may be put further. The phosphor 11 and the resin 13 may be placed in the LED cup 1 at the same time. The amount of the phosphor 11 to be injected is determined as follows.

  In order to set the chromaticity and luminance of the LED, the emission luminance of the LED and the amount of the phosphor 11 to be injected are important. Therefore, it is necessary to actually determine the light emission luminance and the injection amount of the phosphor 11 under the energization conditions for lighting the LED. In particular, in a pseudo-white LED that obtains white color by exciting the phosphor 11 with a blue LED, if the amount of the phosphor 11 injected is small, the ratio of blue is large, the chromaticity becomes pale, and if the amount of phosphor 11 injected is large, the color is high. The degree is yellowish. Therefore, first, the phosphor 11 is put in a quantity smaller than the amount of the phosphor 11 set. Next, the phosphor 11 is added little by little, and the luminance and chromaticity are set. At this time, the sealing resin 13 may be formed or may not be formed.

  In addition, when adding the resin 13 mixed with the phosphor 11 in this step while measuring the luminance and chromaticity, the resin 13 is added to the LED cup 1 in addition to the phosphor 11 in the conventional method. It will be done. Therefore, the volume injected into the LED cup 1 needs a sufficient margin to accommodate the phosphor 11 containing the resin 13. However, in this embodiment, it is only necessary to inject only the phosphor 11 into the LED cup 1, so that there is an effect that the luminance and chromaticity can be adjusted relatively easily.

  FIG. 3 shows a method for measuring the injection amount of the phosphor 11 injected into the LED cup 1.

  When the apparatus shown in FIG. 3 is used, the above-described adjustment of luminance and chromaticity supplies power to the LED element 3 of the LED cup 1 that is going to inject the phosphor 11, for example, as shown in FIG. Then, the LED 51 is actually turned on to cause the excitation 51 to emit light from the LED element 3. Next, the phosphor 11 is injected little by little while measuring the chromaticity with the chromaticity meter 53, and the excitation 51 and the fluorescence 52 emitted from the phosphor 11 are measured. At this time, the amount of the phosphor 11 at the time when the predetermined luminance and chromaticity are reached is measured and determined as the injection amount of the phosphor 11.

  In addition, when the LED itself cannot be supplied with light due to restrictions on the manufacturing process of the LED and the like, the adjustment of the above brightness and chromaticity is performed as shown in FIG. 1 may be performed by irradiating the excitation 51 from the outside.

  That is, the phosphor 11 is injected little by little while measuring the chromaticity of the reflected light from the LED cup 1 of the excitation 51 and the fluorescence 52 emitted from the phosphor 11 in the LED cup 1 with the chromaticity meter 53. When the luminance and chromaticity are reached, the amount of the phosphor 11 is measured and determined. The brightness and chromaticity may differ from the case where the LED is actually emitted as a finished product, but the correlation between the chromaticity when using the external excitation light source 54 and the chromaticity as a finished product is grasped in advance. It seems that there is no problem.

  The external excitation light source 54 is preferably measured by a light source that emits the same light as the LED element 3. However, if the brightness and chromaticity of the product can be estimated from the ratio between the excitation light intensity and the fluorescence intensity, the amount of the phosphor 11 can be determined even with a similar excitation light source.

  Furthermore, when adjusting the above luminance and chromaticity, the base material 12 or a mixture of phosphors in which the mixing ratio of the phosphor 11 and the base material 12 is adjusted is put into the LED cup 1. The total amount of the phosphor 11 may be adjusted.

  FIG. 4A shows an example of a method of changing the total amount of phosphors (activators) in the same volume by changing the ratio between the phosphors and the base material 12. FIG. 4B shows an example of a method for adjusting the luminance and chromaticity using the phosphor mixture prepared in FIG. 4A.

  In FIG. 4A, the ratio of the phosphor 11 and the base material 12 is adjusted, and a sample A that contains a large proportion of the phosphor 11 and samples B, C, and D that sequentially reduce the ratio of the phosphor are prepared. It shows about what to do.

  By using a plurality of samples having different ratios including the phosphor, an effect of easily adjusting the total amount of the phosphor 11 injected into the LED cup 1 can be expected.

  In addition, as the base material 12 of the LED of this embodiment, ideally, it is desirable that the light emission wavelength of the LED element 3, the excitation wavelength of the phosphor 11, and the fluorescence wavelength region have no light absorption. Specifically, some light is absorbed depending on the optical characteristics of the material of the base material 12.

  Therefore, by injecting the base material 12 into the LED cup 1, it is possible to finely adjust the luminance and chromaticity of the LED. In particular, when it is necessary to finely adjust the chromaticity below the minimum injection unit amount of the normal phosphor 11 powder, an LED cup can be obtained by using a plurality of mixtures of the phosphors 11 having different total amounts of the phosphor activator. The effect which becomes easy to adjust the brightness | luminance and chromaticity of the fluorescent substance 11 inject | poured into 1 can be anticipated.

  Taking the white LED as an example, if the chromaticity after adjusting the brightness is more bluish than the predetermined chromaticity (close to the chromaticity of the excitation light), the phosphor mixture containing a large amount of the phosphor The chromaticity is adjusted by adding (sample B in FIG. 4A) to the LED cup 1.

  On the other hand, when it is more yellowish than the predetermined chromaticity (close to the chromaticity of the phosphor), the phosphor mixture containing a small amount of phosphor (sample D in FIG. 4A). Is added to the LED cup 1 to adjust the chromaticity.

  As another method, the total amount of the phosphors 11 put into the LED cup 1 may be adjusted using the phosphors 11 in which the concentration of the activator mixed in the base material is adjusted to a plurality of concentrations.

  The base material 12 and the phosphor 11 in which the ratio of the phosphor 11 and the base material 12 is adjusted are prepared as follows.

  For example, suppose that the minimum measurable mass of a balance that can be used at present is 1 mg. Assume that the mass of the phosphor 11 that needs to be reduced in size and injected into the LED cup 1 is calculated to be 0.2 mg. Since 0.2 mg is less than the minimum value of mass that can be measured with a balance, it cannot be measured as it is.

  However, the phosphor 11 containing the activator at a rate of 20% in a minimum mass of 1 mg that can be measured and the base material 12 containing no activator at a rate of 80% are mixed into the LED cup 1. By injecting, it is possible to measure the mass of the phosphor 11 that needs to be injected into the 0.2 mg LED cup 1.

  That is, 8 g of the base material 12 containing no activator and 2 g of the normal phosphor 11 containing the activator are uniformly mixed to make a mixed powder of 10 g, and 1 mg is weighed to measure the LED. What is necessary is just to inject | pour into the cup 1.

  Even when measuring by volume, it is difficult to accurately produce a small volume, but it is easy to accurately produce a volume of a certain size. Therefore, in order to obtain 1 μL of the phosphor 11, it is easier to accurately prepare a 10 μL container and to put the phosphor 11 having a concentration of 10% therein than to accurately prepare a 1 μL container.

  Although the amount of the activator is the same, the total amount of powder to be injected can be increased, so that the activator of the predetermined phosphor 11 can be accurately injected, and the predetermined luminance and chromaticity can be realized. Can do. The base material 12 containing no activator has the same physical properties as the phosphor 11 containing the activator except for the optical characteristics, so it is not separated during the mixing process.

  In addition, although it is necessary to perform adjustment of said brightness | luminance and chromaticity beforehand in order to set the quantity of the fluorescent substance 11 inject | poured, it adjusts finely, measuring the brightness | luminance and chromaticity of LED in an actual manufacturing process. The final total amount of the phosphor 11 may be determined.

  A method for forming an LED by the above method will be described below with reference to FIGS. 1A to 1D show a method of forming an LED by injecting a set amount of the phosphor 11 set by the above method into the LED cup 1.

  First, as shown in FIG. 1 (a), the phosphor 11 is injected into the LED cup 1, and then, as shown in FIG. 1 (b), the LED cup 1 itself is tilted to an appropriate angle so that the phosphor 11 is tilted. Spill out of cup. Further, as shown in FIG. 1 (c), the amount of the phosphor 11 is weighed by setting the phosphor 11 remaining in the LED cup 1 to a set amount, as shown in FIG. 1 (d). Then, the resin 13 is injected and fixed.

  Thereby, the set amount of the phosphor 11 injected into the LED cup 1 can be set as the amount of the phosphor 11 remaining in the LED cup 1 even when the LED cup 1 itself is tilted.

  Since the phosphor 11 has low adhesiveness and is smooth, the phosphor 11 exceeding the set amount easily flows down from the LED cup 1. If tilting is insufficient to define the set amount, the amount of phosphor 11 remaining in the LED cup 1 may be adjusted by lightly vibrating. Further, in this method, the phosphor 11 may adhere to unnecessary portions, but can be removed by air blowing or washing after the resin 13 is cast and cured.

  This method is a method that can be used when, for example, the phosphor 11 is collectively injected in units of the lead frame 2 or the sheet in which the LED element 3 is mounted as the LED cup 1.

  Moreover, when a problem arises due to the phosphor 11 adhering to an unnecessary portion, the phosphor 11 is not directly put into the LED cup 1 but first put in another container and the amount of the phosphor 11 is quantified. It is good also as a structure moved to the LED cup 1. FIG. FIGS. 5A to 5F show another method of forming the LED by injecting the set amount of the phosphor 11 set by the above method into the LED cup 1.

  For example, as shown in FIG. 5A, a plurality of depressions 23 are provided in a measuring instrument 22 made of a hard material such as ceramic that is hard to be polished. The recesses 23 are formed so as to be arranged at the same pitch as the LED elements 3 and the LED cups 1 formed on the lead frame 2 and the sheet.

  Next, as shown in FIG. 5 (b), the phosphor 11 is placed therein, and the LED cup 1 is tilted until only a set amount of the phosphor 11 that provides the necessary luminance and chromaticity remains. . If tilting is insufficient to define the set amount, the amount of phosphor 11 remaining in the LED cup 1 may be adjusted by lightly vibrating.

  Further, the measuring instrument 22 is provided with a positioning structure so that the position of the recess 23 can be adjusted to the position of the LED cup 1 when the lead frame 2 or the sheet is covered from above. You may mark so that the position of the hollow 23 of the measuring device 22 and the position of the LED cup 1 may be known. In addition, the scale 22 and the LED cup 1 are combined with a certain amount of force so that the phosphor 11 does not spill outside when it is turned over so that it does not shift or float.

  When a predetermined amount of the phosphor 11 enters the recess 23, the lead frame 2 or the sheet on which the LED cup 1 is mounted is placed thereon as shown in FIG. 5 (c), and together as shown in FIG. 5 (d). Turn it over. At this time, the phosphor 11 falls into the LED cup 1 and is injected. Light vibration may be applied so that the phosphor 11 does not remain in the recess 23 and so that the phosphor 11 spreads uniformly in the LED cup 1.

  It is possible to prevent the phosphor 11 from spilling out of the LED cup 1 by collectively weighing and injecting the phosphor 11 in units of the lead frame 2 and the sheet. Thereafter, as shown in FIG. 5E, the measuring instrument 22 provided with the recess 23 is removed, and the injection of the phosphor 11 is completed. Finally, as shown in FIG. 5F, resin 13 is injected to form an LED.

  In this method, the phosphor 11 can be injected all at once in the lead frame 2 or the sheet unit, so that mass productivity is good.

  Further, as a method for injecting a set amount of the phosphor 11 into the recess 23 opened at the same interval as the LED cup 1, a method of quantifying the set amount of the phosphor 11 as the recess 23 is fully filled may be considered. it can.

  FIGS. 6A to 6F show still another method for forming an LED by injecting the set amount of the phosphor 11 set by the above method into the LED cup 1.

  When the phosphor 11 is put into the depression 23, a volume slightly overflowing from the depression 23 is first dropped from above the depression 23 as shown in FIG. Next, as shown in FIG. 6 (b), excess phosphor 11 can be removed by grinding with a grinder 24. After that, as shown above, the lead frame 2 and the sheet on which the LED cup 1 is mounted are covered as shown in FIG. 6 (c) and turned over together as shown in FIG. 6 (d). After dropping into the cup 1 and removing the measuring instrument 22 provided with the recess 23 as shown in FIG. 6E, the injection of the phosphor 11 is completed. Thereafter, resin 13 is injected as shown in FIG. 6F to form an LED.

  In order to prevent the phosphor 11 from protruding from the recess 23 when it is ground, for example, the shape of the recess 23 may be an ellipse or a rectangle and may be scraped in the major axis direction. In particular, this method is used when the distance between the front, rear, left, and right directions of the individual LED cups 1 is narrow and there is no extra space, or when the angle from the inner wall of the LED cup 1 is increased in order to efficiently emit light from the LED element 3 forward. It is effective when you have it.

  In addition, since the phosphor 11 has high polishing properties, there is a possibility that the dent 23 is shaved when it is scraped and the quantitativeness cannot be obtained. As a countermeasure, the surface of the measuring instrument 22 provided with the recess 23 may be processed with Teflon (registered trademark). Since Teflon (registered trademark) processing also has an effect of improving the sliding of the phosphor 11, the phosphor 11 remaining inside the recess 23 can be reduced.

  Further, when a predetermined amount of the phosphor 11 is injected into the recess 23 opened at the same interval as the LED cup 1, the phosphor 11 protrudes out of the recess 23 or rises above the recess 23. In addition to the set amount of the body 11, the phosphor 11 may remain and be contaminated.

  FIGS. 7A to 7C show an example of a method for removing the phosphor 11 as described above.

  As shown in FIG. 7A, when the phosphor 11 is weighed by the measuring instrument 22 more than a set amount, or when a portion other than the recess 23 is contaminated, the extra phosphor 11 is shown in FIG. As shown in FIG. 7C, the adhesive sheet 25 is attached to the measuring instrument 22 having the recesses 23 opened at the same interval as the LED cup 1 to adsorb the excess phosphor 11, and the adhesive sheet 25 as shown in FIG. 7C. You may remove by peeling.

  Moreover, it is good also to mask places other than the hollow 23 with the sheet | seat which can be removed easily. This mask can be removed after the phosphor 11 has been inserted and removed, and then the excess phosphor 11 can be adsorbed onto the adhesive sheet 25 and removed. By injecting the phosphor 11 in such a procedure, it becomes possible to protect the recess 23 that requires accuracy.

  Furthermore, after performing these operations and setting the amount of the phosphor 11, the brightness and chromaticity of the LED may be readjusted using a method of finely adjusting the amount of the phosphor 11.

  After injecting the phosphor 11 into the LED cup 1, the LED cup 1 may be vibrated to uniformly distribute the phosphor 11 in the LED cup 1.

  In addition, after putting the phosphor 11 into the LED cup 1, a small amount of resin 13 is poured first, and after the phosphor 11 is adjusted to a predetermined position, the resin 13 sufficient to seal the inside of the LED cup 1. May be formed by pouring.

  If a large amount of the resin 13 is poured at once, the arrangement of the phosphors 11 may become non-uniform due to the flow of the resin 13, and bubbles remaining in the particles of the phosphors 11 are difficult to escape, resulting in a yield during formation. There is a possibility of getting worse.

  However, as described above, there is an effect that the phosphor 11 can be uniformly arranged by once acclimatizing the phosphor 11 with a small amount of the resin 13, and the LED can be formed with less bubbles.

[Embodiment 2]
Another embodiment of the present invention will be described below with reference to FIGS.

  In the present embodiment, another method for injecting a predetermined amount of the phosphor 11 into the LED cup 1 will be described. Note that a method for adjusting the luminance and chromaticity of the LED and a resin injection method will be abbreviated in order to perform the same operations as in the first embodiment.

  FIGS. 8 and 9 show that a needle 31 having a piston 32 that can be pushed inside is used to fill a fluorescent portion 11 in a retracted portion 33 of a needle tip portion that is generated when the piston 32 in the needle 31 is retracted. The method of injecting the phosphor 11 by quantifying the volume by pushing and extruding it on the LED cup 1 is described.

  FIG. 8A shows a cross section of the tip portion of the needle 31 used in the present embodiment. The needle 31 has a cylindrical cavity inside, and a piston 32 is provided at the tip of the needle 31. When the piston 32 moves up and down in the needle 31, the phosphor 11 filled in the needle 31 can be discharged. Further, the volume of the phosphor 11 can be quantified by the retracted portion 33 of the needle tip portion generated by the retracted amount of the piston 32 in the needle 31.

  The position of the piston 32 can be adjusted. Then, even if it is a case where the brightness | luminance and wavelength of LED element 3 itself are changed, the quantity of the fluorescent substance 11 to measure can be adjusted according to it.

  As shown in FIG. 8B, the needle 31 is pressed against the tray 34 containing the phosphor 11, and the retracted portion 33 of the needle tip set by the piston 32 in the needle 31 is filled with the phosphor 11. Is done. The volume of the phosphor 11 to be filled is set by the piston 32 and quantified.

  In a state where the needle 31 is pressed once on the tray 34, the above process may be repeated several times when there is a possibility that the retreating portion 33 of the needle tip portion is not filled with the phosphor 11. At this time, if the needle 31 is repeatedly pressed to the same place on the tray 34, the needle 31 is pressed to a place where the phosphor 11 is already low, and there is a possibility that the needle 31 is not sufficiently filled.

  Therefore, the place where the needle 31 is pressed may be appropriately changed, or the tray 34 itself may be vibrated so that the phosphor 11 is always made uniform.

  Further, the needle 31 may be filled with the phosphor 11 by being inserted into or scooped out from the phosphor 11 placed in the tray 34.

  Next, the needle 31 moves onto the LED cup 1, and the phosphor 11 measured by the needle 31 is discharged from the needle 31 onto the LED cup 1 by the operation of the piston 32 in the needle 31. Since the phosphor 11 is quantified by the retraction amount of the piston 32 in the needle 31 as shown in FIG. 8B, a certain amount of the phosphor 11 is discharged to the LED cup 1.

  As a method of pressing the needle 31 against the tray 34, the needle 31 may come down from above the tray 34 and the needle 31 may be filled with the phosphor 11. Further, as shown in FIG. 9, the position of the needle 31 may be unchanged, and the tray 34 may rise from below to fill the needle 11 with the phosphor 11.

  As shown in FIG. 9, the tray 34 may be provided on the same stage as the frame stage 35 on which the LED cup 1 is placed, and the frame stage 35 may be configured to move up and down, left and right, and back and forth. You may comprise on another stage. In particular, the method of injecting the phosphor 11 by moving the tray 34 and the LED cup 1 containing the phosphor 11 without moving the position of the needle 31 has the following characteristics.

  When the needle 31 itself for quantifying the phosphor 11 moves from the tray 34 containing the phosphor 11 to the LED cup 1 on the lead frame 2, the needle 31 performs operations of ascending, moving, descending, and pushing. . At this time, the phosphor 11 may spill from the tip of the needle 31 due to mechanical vibration of the needle 31 itself.

  Therefore, as shown in FIG. 9, the needle 31 is fixed, and a frame stage 35 for fixing the tray 34 and the lead frame 2 together is provided to move the needle. The action is the same as when the needle 31 is moved relative to the tray 34 and the lead frame 2, but the needle 31 itself does not move spatially, so the tip of the needle 31 moves from the tray 34 to the LED cup 1. When doing so, there is little risk of vibration being applied to the needle 31.

  That is, if the apparatus is configured in this way, the needle 31 filling the phosphor 11 can only be finally started, so that it is possible to prevent the filled phosphor 11 from falling due to the influence of vibration accompanying movement.

  Also in the present embodiment, after injecting the phosphor 11 into the LED cup 1, the LED cup 1 may be vibrated to uniformly distribute the phosphor 11 in the LED cup 1.

  In particular, the phosphor 11 weighed by being pressed against the needle 31 tends to include a lump portion and is difficult to spread uniformly in the LED cup 1.

  Therefore, by applying vibration to the LED cup 1, the massive portion of the phosphor 11 is decomposed and spread uniformly. Furthermore, after putting the phosphor 11 into the LED cup 1, a small amount of resin 13 is first poured into the LED cup 1, and after the phosphor 11 is adjusted to a predetermined position, the resin 13 sufficient to seal the inside of the LED cup 1. May be formed by pouring.

  Further, since the phosphor 11 is very hard and has a polishing property, it is necessary to make the needle 31 and the piston 32 difficult to be polished by applying Teflon (registered trademark) processing or the like. Teflon (registered trademark) processing also has an effect of improving the sliding of the powder of the phosphor 11 and suppressing the phosphor 11 from remaining in the needle 31.

[Embodiment 3]
Still another embodiment of the present invention will be described below with reference to FIGS.

  In the present embodiment, another method for injecting a predetermined amount of the phosphor 11 into the LED cup 1 will be described. Note that a method for adjusting the luminance and chromaticity of the LED and a method for injecting the resin 13 are abbreviated in order to perform the same operations as in the first embodiment.

  10A to 10D describe a method of controlling the amount of the phosphor 11 injected into the LED cup 1 with the amount of the phosphor 11 adsorbed on the resin 13 injected into the LED cup 1 in advance.

  In the present embodiment, the amount of the resin 13 necessary for adsorbing the phosphor 11 (and the base material 12) set to have desired luminance and chromaticity is obtained in advance based on empirical values. .

  Next, the phosphor 11 to be fixed in the LED cup 1 obtains the amount of the phosphor 11 having the optimum luminance and chromaticity as a finished product by the method of the first and second embodiments.

  Next, as shown in FIG. 10A, the amount of the resin 13 necessary for adsorbing the phosphor 11 fixed around the LED cup 1 is obtained by calculation and applied to the LED cup 1. It is not so difficult at present to discharge only the sealing resin 13 by the resin injecting machine 21 with high volume accuracy.

  Next, as shown in FIG. 10 (b), the phosphor 11 powder is put in the LED cup 1 sufficiently more than the amount of the resin 13 put in advance. At this time, if the amount of the phosphor 11 that can be contained in the resin 13 having the minimum discharge volume of the resin injecting machine 21 is too much, only the base material 12 is mixed instead of the phosphor 11 as described above. The content of the phosphor 11 may be adjusted. The base material 12 has good affinity with the resin 13 and is absorbed by the resin 13 with almost no bubbles on the surface of the base material 12. Conversely, it may be said that the resin 13 is absorbed by the base material 12.

  In any case, since a sufficient amount of the phosphor 11 and the base material 12 are put from above the resin 13, the resin 13 permeates around the phosphor 11 near the bottom surface of the LED cup 1, but as the distance from the bottom surface increases, the resin 13 increases. It will not penetrate.

  In this state, as shown in FIG. 10C, the LED cup 1 is turned over or an air blow is blown onto the LED cup 1 so that the resin 13 does not penetrate and the upper phosphor has no holding power. 11 leaves the LED cup 1. In this way, the amount of the phosphor 11 in the LED cup 1 can be determined by the limit amount that the resin 13 can penetrate. After that, the LED may be formed with the resin 13 as shown in FIG.

  That is, in the present embodiment, it is possible to obtain the quantitative property of the phosphor 11 that is difficult to obtain the quantitative property by quantifying the resin 13 that is easy to obtain the quantitative property.

  Furthermore, since the distribution of the phosphor 11 in the LED cup 1 is limited to the vicinity of the bottom surface, variations in luminance and chromaticity due to variations in the spatial arrangement of the phosphor 11 can be suppressed.

  After the excess phosphor 11 is removed, the resin 13 is filled again into the LED cup 1 to seal the phosphor 11, the LED element 3 and the gold wire 4. In this method, even if the resin 13 overflows in the second injection of the resin 13, the injection amount of the phosphor 11 does not change, so that the luminance and chromaticity do not change.

  Further, even if the amount of the injected phosphor 11 is the same, the luminance and chromaticity of the LED are different if the spatial arrangement of the phosphor 11 in the LED cup 1 is different. Therefore, it is desirable that the location where the resin 13 that adsorbs the phosphor 11 wets the LED cup 1 is the same in any LED cup 1.

  FIGS. 11A to 11E show, as an example, steps for the case where the phosphor 11 is distributed on the surface in the LED cup 1.

  In this method, as shown in FIG. 11A, after the resin 13 is once put into the LED cup 1 by the resin injecting machine 21, the resin 13 is sucked up or the LED cup 1 is inclined as shown in FIG. By causing the resin 13 to flow out, the surface inside the LED cup 1 is uniformly thinly wetted.

  Then, as shown in FIG. 11C, the phosphor 11 is injected into the LED cup. Next, as shown in FIG. 11 (d), the LED cup 1 is turned over or air blow is blown onto the LED cup 1 to remove the phosphor 11 that has not been adsorbed, and then to FIG. 11 (e). As shown, an LED is formed with resin 13.

  That is, this method aims to obtain the quantitative property of the resin 13 with the surface area inside the LED cup 1.

  The amount of the phosphor 11 adsorbed on the resin 13 depends on the surface area inside the LED cup 1 wetted with the resin 13 and also depends on the thickness of the wet layer of the resin 13. Therefore, it is preferable that the LED cup 1 and the resin 13 are kept at a high temperature within a range below the temperature at which curing starts.

  If the viscosity of the resin 13 is lowered by raising the temperature, the surface tension is lowered. Therefore, the injected resin 13 and the phosphor 11 adsorbed on the side surface of the LED cup 1 are likely to gather on the bottom surface of the LED cup 1. This leads to a reduction in spatial variation of the phosphor 11 in the LED cup 1.

  In addition, it is possible to expect an effect of removing moisture by raising the temperature and suppressing peeling of the LED cup 1 and the resin 13. Further, by raising the temperature, it becomes easier to remove the resin 13 after wetting the inside of the cup, so that the amount of the resin 13 remaining in the LED cup 1 can be reduced.

  Furthermore, when the amount of the phosphor 11 is large even with this method, the powder of the phosphor 11 and the base material 12 not containing the phosphor 11 can be mixed as appropriate by the method of adjusting the luminance and chromaticity of the LED. That's fine. This manufacturing method is a manufacturing method that can cope with the case where the size of the LED finished product package becomes smaller.

  Further, in the above method, the phosphor 11 is injected after injecting the resin into the LED cup 1, but the injection amount of the phosphor 11 is even more than the amount that the previously injected resin 13 can absorb. I just need it.

  Therefore, the phosphor 11 may be injected from above the mask 41 by covering the mask 41 with a hole smaller than the light emitting surface of the LED cup 1 as shown in FIG. The amount of the phosphor 11 injected from above the mask 41 does not need to be accurately measured by the above method.

  At this time, it is necessary to arrange the LED cup 1 and the mask 41 so as not to contact each other. This is to prevent the resin 13 attached around the LED cup 1 from being transferred to the mask 41.

  In addition, since the second injection of the resin 13 injected into the LED formed by the above method is a process that does not directly affect the chromaticity, the normal injection machine is used regardless of the high-precision resin injection machine 21. The injection may be performed. However, when the resin 13 is injected, the pressure applied to the LED cup 1 pushes out the portion of the resin 13 including the phosphor 11 and the distribution becomes uneven, which may adversely affect the brightness and chromaticity of the LED. Since the resin 13 in the portion including the phosphor 11 is cured in advance, the second injection of the resin 13 may be performed.

  As described above, the method for forming an LED package including the phosphor according to the present embodiment is a method for manufacturing a light-emitting device that can suppress variations in chromaticity without using a mechanism for mixing phosphor and resin in advance. . By using the method of this embodiment mode, it is possible to realize a light emitting device that can suppress variations in chromaticity without using a mechanism for mixing phosphor and resin in advance.

  Moreover, according to said structure, since a useless member and a chromaticity defective product are hard to generate | occur | produce, production efficiency improves. Moreover, since the phosphor-containing resin is not handled, replacement work and cleaning work due to wear of the manufacturing apparatus can be facilitated, and mass productivity is improved.

  Furthermore, since a very small amount of phosphor can be injected, it is possible to contribute to miniaturization of an LED package having a desired luminance and chromaticity. Further, when the phosphor and the resin are applied to the light emitting element, the application amount can be directly measured, and there is an additional effect that an accurate amount can be applied.

  In addition, when the phosphor is injected in a powder state as in the present embodiment, the distribution of the phosphor inside the LED cup is biased around the LED cup bottom surface and the LED element, between the resin layer and the resin layer, etc. The boundary between the phosphor and the resin layer becomes clear. On the contrary, in the methods other than the present embodiment, the phosphor distribution is not as biased and the boundary is not as clear as in the present invention. Therefore, when the completed LED is viewed in a cross section including the light emitting direction, if the boundary between the resin and the phosphor is clear, it can be said that the LED is manufactured using the method of the present embodiment.

  The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims, and the embodiments can be obtained by appropriately combining technical means disclosed in different embodiments. The form is also included in the technical scope of the present invention.

  The present invention relates to a light emitting device such as an LED, and relates to an LED using a wavelength converting substance for the purpose of color conversion of emitted light from an LED element, a manufacturing method thereof, and a manufacturing device.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1, showing an embodiment of the present invention, is a cross-sectional view of an LED package showing a method for injecting a set amount of phosphor and resin into an LED cup. It is sectional drawing of an LED package which shows the preparation method of the said LED. It is sectional drawing of an LED package which shows the measuring method of the injection quantity of the fluorescent substance inject | poured into the said LED package. It is a figure which shows the preparation method of the mixture of the fluorescent substance inject | poured into the said LED package, and the adjustment method of chromaticity. It is an example of another method of producing the LED, and is a cross-sectional view of an LED package showing a method of injecting a set amount of phosphor and resin into an LED cup. It is an example of another method of producing the LED, and is a cross-sectional view of an LED package showing a method of injecting a set amount of phosphor and resin into an LED cup. It is sectional drawing of an LED package which shows another method of quantifying the fluorescent substance inject | poured into the said LED package. It is an example of another method of producing the LED, and is a cross-sectional view of an LED package showing a method of injecting a set amount of phosphor and resin into an LED cup. It is an example of another method of producing the LED, and is a cross-sectional view of an LED package showing a method of injecting a set amount of phosphor and resin into an LED cup. It is an example of another method of producing the LED, and is a cross-sectional view of an LED package showing a method of injecting a set amount of phosphor and resin into an LED cup. It is an example of another method of producing the LED, and is a cross-sectional view of an LED package showing a method of injecting a set amount of phosphor and resin into an LED cup. It is sectional drawing of an LED package which shows another method of inject | pouring the fluorescent substance injected into the said LED package. It is the perspective view (a) and sectional drawing (b) of a LED lead frame. It is the perspective view (a) and sectional drawing (b) of a LED sheet. It is sectional drawing which shows the prior art and showed the method of quantifying and inject | pouring fluorescent substance and resin.

Explanation of symbols

3, 103, 203 LED element (light emitting means of excitation light)
4, 104, 204 Gold wire 11, 211 Phosphor, phosphor powder (fluorescent substance, phosphorescent substance, wavelength conversion luminescent substance)
12 Base material 13,213 Resin 21 Resin injection machine (resin metering means, resin injection means)
22 Meter (Wavelength-converted luminescent substance measuring means, wavelength-converted luminescent substance injection means)
23 depression (wavelength conversion luminescent substance measuring means)
24 grinder (wavelength conversion luminescent substance measuring means)
25 Adhesive sheet (wavelength conversion luminescent substance removal means)
31 Needle (wavelength conversion luminescent substance metering means, wavelength conversion luminescent substance injection means)
32 piston (wavelength-converting luminescent substance metering means, wavelength-converting luminescent substance injection means)
33 Recessed portion of needle tip (wavelength conversion luminescent substance measuring means)
35 Frame stage (formation container dispersion means, wavelength conversion luminescent substance dispersion means)
41 Mask (wavelength conversion luminescent substance injection means)
51 Excitation light 52 Fluorescence 53 Colorimeter (chromaticity measuring means)
54 External excitation light source (chromaticity measurement means, excitation light emission means)

Claims (56)

A light-emitting device comprising: a light-emitting element; a wavelength-converted light-emitting substance that absorbs at least a part of light emitted from the light-emitting element and emits light after wavelength conversion; and a resin that seals the light-emitting element and the wavelength-converted light-emitting substance. In the manufacturing method,
A method for manufacturing a light-emitting device, wherein the wavelength-converting light-emitting substance and the resin are provided on the light-emitting element without being mixed in advance.   The method for manufacturing a light-emitting device according to claim 1, wherein the wavelength-converting light-emitting substance and the resin are separately provided on the light-emitting element.   The method for manufacturing a light-emitting device according to claim 1, wherein the wavelength-converting light-emitting substance and the resin are simultaneously provided on the light-emitting element.   The method for manufacturing a light-emitting device according to claim 1, wherein the wavelength-converting light-emitting substance and the resin are repeatedly provided on the light-emitting element.   The light-emitting device according to any one of claims 1 to 4, wherein the wavelength-converting luminescent material is a mixture of a base material and a substance composed of a base material and an activator that is a light emitter. Method.   The method for manufacturing a light emitting device according to claim 1, wherein the wavelength conversion light emitting material is a fluorescent material.   The method for manufacturing a light-emitting device according to claim 1, wherein the wavelength-converted light-emitting substance is a substance that emits phosphorescence. Placing the light emitting element in at least one first container for providing a resin;
Injecting the wavelength-converted luminescent material into a first container containing the light-emitting element;
The method for manufacturing a light emitting device according to any one of claims 1 to 7, further comprising a step of measuring by tilting the first container into which the wavelength conversion luminescent material is injected. Placing the light emitting element in at least one first container for providing a resin;
Injecting the wavelength-converted luminescent material into the same number of second containers as the first container;
Weighing the second container filled with the wavelength-converting luminescent material;
The method for manufacturing a light emitting device according to claim 1, further comprising a step of injecting the wavelength-converted luminescent substance in the second container after the measurement into the first container. The wavelength conversion luminescent material is
10. The method for manufacturing a light emitting device according to claim 9, wherein weighing is performed by tilting the second container. The wavelength conversion luminescent material is
10. The method for manufacturing a light emitting device according to claim 9, wherein weighing is performed by scraping an upper edge of the second container.   The light emitting device according to any one of claims 9 to 11, wherein a wavelength-converting luminescent material is provided on the light emitting element by overlapping the first container and the second container and turning over. Device manufacturing method.   13. The method for manufacturing a light-emitting device according to claim 9, wherein when the wavelength-converted luminescent material is weighed, excess wavelength-converted luminescent material is removed by an adhesive sheet. Placing the light emitting element in at least one first container for providing a resin;
7. The method according to claim 1, further comprising a step of injecting the wavelength-converted luminescent material into the first container after measuring the wavelength-converted luminescent material by a measuring unit. Method for manufacturing the light emitting device.   15. The method of manufacturing a light emitting device according to claim 14, wherein the measuring means includes a cylindrical member, and the wavelength converted luminescent material is measured by allowing the cylindrical member to enter the wavelength converted luminescent material. The weighing means includes a piston that moves forward and backward in the cylindrical member,
The method for manufacturing a light emitting device according to claim 15, wherein a capacity for measuring the wavelength conversion luminescent material is changed by the piston. The weighing means is
The wavelength-converted luminescent material is measured by allowing the cylindrical member to enter the wavelength-converted luminescent material from above the third container containing the wavelength-converted luminescent material. Manufacturing method of light-emitting device. Advancing and moving the third container containing the wavelength-converted luminescent material, and measuring the wavelength-converted luminescent material by allowing the wavelength-converted luminescent material to enter the cylindrical member;
Then, the first container containing the light emitting element is moved to a position where the cylindrical member is present, and the wavelength-converted luminescent material weighed by the cylindrical member is placed in the first container. Or a method for producing the light-emitting device according to 16.   The weighing means measures the wavelength-converted luminescent material from a different position in the third container containing the wavelength-converted luminescent material for each measurement. The manufacturing method of the light-emitting device as described in any one of.   The light emitting device according to any one of claims 15 to 19, wherein the third container containing the wavelength conversion luminescent material is vibrated to bring the wavelength conversion luminescent material into a uniform state. Method. Placing the light emitting element in at least one first container for providing a resin;
Determining the amount of the wavelength converted luminescent material to be injected into the first container;
Determining the amount of the resin that the wavelength conversion luminescent material penetrates without excess or deficiency;
Providing the resin on the light emitting element;
Injecting a greater amount of the wavelength-converted luminescent material than the amount of the wavelength-converted luminescent material penetrating into the resin;
The method further comprises the step of measuring the wavelength-converted luminescent material by removing the wavelength-converted luminescent material that has not penetrated into the resin in the step from the first container. The manufacturing method of the light-emitting device of any one. Placing the light emitting element in at least one first container for providing the resin;
Determining the amount of the wavelength converted luminescent material to be injected into the first container;
Determining the volume of the resin required to allow the wavelength-converting luminescent material to adhere to the surface of the first container without excess or deficiency;
Providing the resin on the light emitting element;
Removing the resin from the first container;
Injecting a larger amount of the wavelength-converted luminescent material than the wavelength-converted luminescent material penetrating into the resin;
The method further comprises the step of measuring the wavelength-converted luminescent material by removing the wavelength-converted luminescent material that has not penetrated into the resin in the step from the first container. The manufacturing method of the light-emitting device of any one. The step of injecting the wavelength conversion luminescent material includes
Covering the first container with a mask having a hole smaller than the opening of the first container;
23. The method of manufacturing a light emitting device according to claim 21, further comprising a step of injecting the wavelength conversion luminescent material into the first container through the mask.   The step of providing the wavelength conversion luminescent material on the light emitting element, further comprising a step of vibrating the first container to bring the wavelength conversion luminescent material into a uniform state. The manufacturing method of the light-emitting device of any one of 1-23. After the step of providing the wavelength conversion luminescent material,
The method for manufacturing a light emitting device according to claim 1, further comprising a step of providing the resin in a plurality of times. In the step of providing the resin in a plurality of times,
The method for manufacturing a light emitting device according to claim 25, further comprising a step of solidifying the resin in the middle. Injecting excitation light that excites the wavelength-converting luminescent substance contained in the first container for providing the resin;
Measuring the excitation light emitted from the first container, and the luminance and chromaticity of light emitted by the wavelength-converted luminescent material excited by the excitation light;
27. The method according to any one of claims 1 to 26, further comprising a step of measuring an amount of the wavelength-converted luminescent material injected into the first container according to the luminance and the chromaticity. Method for manufacturing the light emitting device.   28. The method of manufacturing a light emitting device according to claim 27, wherein the excitation light turns on the light emitting element in the first container. The step of causing the excitation light to emit the excitation light by an excitation light source outside the first container;
28. The method of manufacturing a light emitting device according to claim 27, further comprising a step of entering excitation light that excites the wavelength-converted luminescent material into the first container.   30. The method of manufacturing a light-emitting device according to claim 29, wherein the excitation light source outside the first container includes the light-emitting element. Measuring the excitation light emitted from the first container, and the luminance and chromaticity of light emitted by the wavelength-converted luminescent material excited by the excitation light;
Measuring a mixture of a base material and a substance comprising an activator which is a base material and a light emitter;
Providing the mixture in the first container,
31. The method of manufacturing a light emitting device according to claim 27, wherein the chromaticity is adjusted.   A light-emitting device manufactured by the method for manufacturing a light-emitting device according to claim 1. A light-emitting device manufacturing apparatus used in the method for manufacturing a light-emitting device according to claim 1,
A wavelength-converted luminescent material injection means for providing a wavelength-converted luminescent material that absorbs at least part of light emitted from the light-emitting element and converts the wavelength to emit light;
A resin injection means for providing a resin to the light emitting element,
The wavelength conversion luminescent substance injection means and the resin injection means are:
An apparatus for manufacturing a light-emitting device, wherein the wavelength-converting light-emitting substance and the resin are provided on a light-emitting element without being mixed in advance. The light emitting element is placed in at least one first container for forming the resin,
The wavelength-converting luminescent substance injection means puts the wavelength-converted luminescent substance into the first container,
34. The light emitting device manufacturing apparatus according to claim 33, wherein the weighing is performed by tilting the container. Further comprising wavelength conversion luminescent material measuring means for measuring the wavelength conversion luminescent material,
The light emitting element is placed in at least one first container for providing the resin,
The wavelength-converting luminescent substance measuring means has a measuring container for measuring the wavelength-converted luminescent substance,
Weigh the wavelength-converted luminescent material by tilting the wavelength-converted luminescent material metering means,
The wavelength conversion luminescent substance injection means includes:
The light emitting device manufacturing apparatus according to claim 33, wherein the wavelength conversion luminescent material weighed by the wavelength conversion luminescent material measuring means is provided in the first container. Further comprising wavelength conversion luminescent material measuring means for measuring the wavelength conversion luminescent material,
Each of the light emitting elements is put in at least one first container for forming the resin,
The wavelength-converting luminescent substance measuring means has a measuring container for measuring the wavelength-converted luminescent substance,
Weigh the wavelength-converting luminescent material by scraping the top edge of the weighing container,
The wavelength conversion luminescent substance injection means includes:
The light emitting device manufacturing apparatus according to claim 33, wherein the wavelength conversion luminescent material weighed by the wavelength conversion luminescent material measuring means is provided in the first container. The wavelength conversion luminescent substance injection means includes:
37. The light-emitting device manufacturing apparatus according to claim 35 or 36, wherein a wavelength-converted light-emitting substance is provided on the light-emitting element by overlapping the weighing container and the first container and turning over. A wavelength-converting luminescent material removing means for removing the wavelength-converted luminescent material;
The wavelength conversion luminescent material removing means includes:
The excess wavelength-converted luminescent material is removed by the wavelength-converted luminescent material removing unit when the wavelength-converted luminescent material is weighed by the wavelength-converted luminescent material measuring unit. An apparatus for manufacturing a light-emitting device according to claim 1.   39. The apparatus for manufacturing a light emitting device according to claim 38, wherein the wavelength conversion luminescent substance removing means is an adhesive sheet. Further comprising wavelength conversion luminescent material measuring means for measuring the wavelength conversion luminescent material,
The light emitting element is placed in at least one first container for providing the resin,
The wavelength conversion luminescent substance metering means includes a cylindrical member,
Measuring the wavelength-converted luminescent material by allowing the cylindrical member to enter the wavelength-converted luminescent material;
The wavelength conversion luminescent substance injection means includes:
The light emitting device manufacturing apparatus according to claim 33, wherein the wavelength conversion luminescent material weighed by the wavelength conversion luminescent material measuring means is provided in the first container. The wavelength conversion luminescent substance metering means includes a piston that moves forward and backward in the cylindrical member,
41. The apparatus for manufacturing a light-emitting device according to claim 40, wherein a capacity for measuring the wavelength-converted luminescent material is changed by the piston. The wavelength conversion luminescent substance measuring means is:
42. The apparatus for manufacturing a light-emitting device according to claim 40, wherein the wavelength-converted luminescent material is measured by allowing the cylindrical member to enter from above the third container containing the wavelength-converted luminescent material. The wavelength-converted luminescent substance is measured by moving the third container containing the wavelength-converted luminescent substance into the wavelength conversion luminescent substance-measuring means, and allowing the wavelength-converted luminescent substance to enter the cylindrical member,
The first container containing the light emitting element is moved to the position where the cylindrical member is present with respect to the wavelength conversion luminescent substance measuring means, and the wavelength converted luminescent substance weighed by the cylindrical member is transferred to the first container. 42. The apparatus for manufacturing a light-emitting device according to claim 40 or 41, wherein the apparatus is provided. A wavelength converting luminescent material dispersing means;
The wavelength conversion luminescent substance dispersing means is:
44. The light-emitting device according to claim 40, wherein the wavelength-converted luminescent material is measured from a different position in the third container containing the wavelength-converted luminescent material for each measurement. Manufacturing equipment.   The wavelength-converted luminescent material dispersing means further vibrates a container containing the wavelength-converted luminescent material so that the wavelength-converted luminescent material is in a uniform state. The manufacturing apparatus of the light-emitting device of description. Further comprising resin weighing means,
The light emitting element is placed in at least one first container for providing the resin,
The resin weighing means is
Measuring the amount of the resin into which the wavelength-converted luminescent material measured by the wavelength-converted luminescent material measuring means penetrates without excess or deficiency;
The resin injection means provides the resin on the light emitting element,
The wavelength conversion luminescent substance injection means includes:
Injecting the wavelength-converted luminescent material in a larger amount than the wavelength-converted luminescent material penetrating into the resin,
Measuring the wavelength converted luminescent material by removing from the first container the wavelength converted luminescent material that has not penetrated the resin;
Furthermore, the resin injection means
34. The light emitting device manufacturing apparatus according to claim 33, wherein the resin is provided on the light emitting element. Further comprising resin weighing means,
The light emitting element is placed in at least one first container for providing the resin,
The resin weighing means is
Measuring the volume of the resin required to attach the wavelength-converted luminescent material measured by the wavelength-converted luminescent material measuring means to the surface of the first container without excess or deficiency;
The resin injection means is
Providing the resin in the first container;
Removing the resin from the first container;
The wavelength conversion luminescent substance injection means includes:
Injecting the wavelength-converted luminescent material in a larger amount than the wavelength-converted luminescent material penetrating into the resin,
Measuring the wavelength-converted luminescent material by removing the wavelength-converted luminescent material that did not penetrate the resin from the first container;
Furthermore, the resin injection means
34. The light emitting device manufacturing apparatus according to claim 33, wherein the resin is provided on the light emitting element. The wavelength conversion luminescent substance injection means includes:
48. The light-emitting device manufacturing apparatus according to claim 46, wherein the wavelength-converted light-emitting substance is injected from a mask having a hole smaller than the opening of the first container. Further comprising forming container dispersion means for applying vibration to the first container for providing the resin so that the wavelength-converted luminescent material is in a uniform state;
Each of the light emitting elements is put in at least one first container for providing the resin,
The forming container dispersing means is
49. The wavelength-converted light-emitting substance is provided on the light-emitting element, and then the first container is vibrated to bring the wavelength-converted light-emitting substance into a uniform state. An apparatus for manufacturing a light-emitting device according to claim 1. On the light emitting element, the wavelength conversion luminescent material is provided by the wavelength conversion luminescent material injection means,
After a small amount of resin is provided on the light emitting element by the resin injection means,
The light emitting device manufacturing apparatus according to any one of claims 33 to 49, wherein the resin is provided on the light emitting element by the resin injection means. On the light emitting element, the wavelength conversion luminescent material is provided by the wavelength conversion luminescent material injection means,
After a small amount of resin is provided on the light emitting element by the resin injection means,
Wait until the resin hardens,
The light emitting device manufacturing apparatus according to any one of claims 33 to 49, wherein the resin is provided on the light emitting element by the resin injection means. A chromaticity measuring means;
The chromaticity measuring means is
Excitation light for exciting the wavelength-converted luminescent material is incident on the first container for forming the resin,
Measuring the luminance and chromaticity of the excitation light emitted from the first container, and the emission and emission of light emitted by the wavelength conversion luminescent substance excited by the excitation light;
52. The apparatus for manufacturing a light-emitting device according to claim 33, wherein the amount of the wavelength-converted light-emitting substance applied to the first container is measured according to the luminance and the chromaticity. .   53. The manufacturing apparatus according to claim 52, wherein the excitation light turns on the light-emitting element in the first container. The chromaticity measuring means further comprises a light emitting means for the excitation light outside the first container,
The chromaticity measuring means is
Causing the light emitting means to emit light from outside the first container;
53. The manufacturing apparatus according to claim 52, wherein excitation light for exciting the wavelength-converted luminescent material is incident on the first container.   55. The light emitting device manufacturing apparatus according to claim 54, wherein the light emitting means outside the first container comprises the light emitting element. The chromaticity measuring means is
Measuring the luminance and chromaticity of the excitation light emitted from the first container, and the emission and emission of light emitted by the wavelength conversion luminescent substance excited by the excitation light;
The wavelength conversion luminescent substance measuring means is:
Based on the luminance and the chromaticity, weigh the mixture of the base material and base material to be injected and the activator that is a luminous body,
The wavelength conversion luminescent substance injection means includes:
56. The apparatus for manufacturing a light-emitting device according to any one of claims 52 to 55, wherein the wavelength-converted luminescent material weighed by the wavelength-converted luminescent material measuring means is provided in the first container.

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