TW201312810A - Light emitting device cell, light emitting device, and light emitting device cell manufacturing method - Google Patents

Abstract

Provided are a light emitting device cell and a light emitting device which are difficult to damage even when deformed. A lateral partition part (14) comprises a first lateral partition part (14a), a second lateral partition part (14b), and a connecting part (16b). The first lateral partition part (14a) is positioned along one side each (12a, 13a) of first and second primary partition parts (12, 13). The first lateral partition part (14a) is welded to both the first and second primary partition parts (12, 13) to extend from one lateral end part to another lateral end part in the longitudinal direction for a portion of the latitudinal direction. The second lateral partition part (14b) is positioned along another side each (12b, 13b) of the first and second primary partition parts (12, 13) which are adjacent to the one side each (12a, 13a). The second lateral partition part (14b) is positioned such that one end part (14b2) abuts the first lateral partition part (14a). The second lateral partition part (14b) is welded to both the first and second lateral partition parts (12, 13) to extend from one lateral end part to another lateral end part in the longitudinal direction for a portion of the latitudinal direction.

Description

Light-emitting device unit, light-emitting device, and method for manufacturing light-emitting device unit

The present invention relates to a unit for a light-emitting device, a light-emitting device, and a method for manufacturing a unit for a light-emitting device.

Heretofore, a light-emitting device using a light-emitting body such as a quantum dot has been known (for example, see Patent Document 1). Such a light-emitting device typically encloses the illuminator in the unit.

[Previous Technical Literature] [Patent Literature]

Patent Document 1: Japanese Patent Laid-Open Publication No. 2010-533976

Depending on the use of the light-emitting device, there is a case where the unit is subjected to a large external force when the light-emitting device is used. If the illuminating device is subjected to a large external force, there is a case where the unit is bent. Therefore, it is required that the unit for a light-emitting device is not easily damaged even when it is bent.

SUMMARY OF THE INVENTION A primary object of the present invention is to provide a unit for a light-emitting device which is not easily damaged even when deformed.

The unit for a light-emitting device of the present invention includes a first main wall portion and a second main wall portion. The first main wall portion and the second main wall portion face each other with a space therebetween. The first main wall portion and the second main wall portion have a polygonal shape. A side wall portion is disposed between the first main wall portion and the second main wall portion. Side wall portion and first main wall portion and second main wall portion A division is formed together to form an internal space in which the illuminator is enclosed. The side wall portion includes a first side wall portion, a second side wall portion, and a connecting portion. The first side wall portion is disposed along one side of the first main wall portion and the second main wall portion. The first side wall portion is fused to each of the first main wall portion and the second main wall portion so as to extend from one end portion in the longitudinal direction to the other end portion in one of the width direction portions. The second side wall portion is disposed along the other side of the first main wall portion and the second main wall portion that are adjacent to one side. The second side wall portion is disposed such that one end portion is adjacent to the first side wall portion. The first side wall portion is fused to each of the first main wall portion and the second main wall portion so as to extend from one end portion in the longitudinal direction to the other end portion in one of the width direction portions. The connection portion is connected to one end portion of the second side wall portion and the first side wall portion. The connection portion is fused to each of the first main wall portion and the second main wall portion. The connecting portion has a dimension in the width direction smaller than that of the second side wall portion.

In the unit for a light-emitting device of the present invention, the interval between one end portion of the second side wall portion and the first side wall portion may be 0.1 to 1.0 mm.

In the unit for a light-emitting device of the present invention, the side wall portion may be glass-containing.

In the unit for a light-emitting device according to the present invention, the connecting portion may be connected to the outer side portion and the first side wall portion in the width direction of one end portion of the second side wall portion. Further, the connecting portion may be integrally fused to each of the first main wall portion and the second main wall portion.

The light-emitting device of the present invention includes a unit for a light-emitting device and an illuminator enclosed in the internal space.

In the light-emitting device of the present invention, the illuminant may be an inorganic phosphor.

In the light-emitting device of the present invention, the inorganic phosphor may also be a quantum dot.

The manufacturing method of the unit for a light-emitting device according to the present invention is to produce a laminate comprising: a first glass sheet; a second glass sheet facing the first glass sheet with a space therebetween; and a plurality of glass ribbons, which are equal to The first glass plate and the second glass plate are disposed along each of a plurality of sides of the first glass plate and the second glass plate; and the plurality of glass ribbons include: a first glass ribbon along the first glass plate And the first side of the second glass sheet; and the second glass ribbon disposed along the second side of the first glass sheet and the second glass sheet adjacent to the first side; and the first side of the second glass ribbon The end of the side is inserted between the second side and the first glass ribbon. Performing a fusing step of scanning the laser light from one side of the side to the other end along the sides of the plurality of sides of the laminated body, thereby making the first glass plate and the second glass plate Each is fused with a plurality of glass ribbons. In the fusing step, scanning of the laser light along the first side is performed from the opposite side of the second side toward the second side.

In the method for producing a light-emitting device unit of the present invention, the distance between the end portion on the first side of the second glass ribbon and the first glass ribbon is preferably 0.1 mm to 1.0 mm.

According to the present invention, it is possible to provide a light-emitting device unit and a light-emitting device which are less likely to be damaged even when deformed.

Hereinafter, an example of a preferred embodiment of the present invention will be described. However, the following embodiments are merely illustrative. The present invention is not subject to the following embodiments State is any limit.

In the respective drawings referred to in the embodiments and the like, members having substantially the same functions are referred to by the same reference numerals. In addition, the drawings referred to in the embodiments and the like are schematically described, and the ratio of the size of the object drawn in the drawing to the ratio of the size of the real object or the like is different. Between the drawings, there are also cases where the size ratio of the objects is different. The size ratio of specific objects, etc., should be judged by considering the following instructions.

(First embodiment)

Fig. 1 is a schematic perspective view of a light-emitting device of a first embodiment. Fig. 2 is a schematic plan view of a light-emitting device of a first embodiment. Figure 3 is a schematic cross-sectional view taken along line III-III of Figure 2. Figure 4 is a schematic cross-sectional view taken along line IV-IV of Figure 2. Fig. 5 is a schematic cross-sectional view showing an enlarged portion V of Fig. 4 when the light-emitting device is bent in the x direction. The configuration of the light-emitting device 1 of the present embodiment will be described with reference to Figs. 1 to 5 . Further, in Fig. 2 and Fig. 13 described below, the fusion portions 14a1, 14b1, 14c1, and 14d1 are hatched, but the portions marked with hatching do not indicate the cross section.

The light-emitting device 1 is a device that emits light having a wavelength different from that of the excitation light when the excitation light is incident. The light-emitting device 1 may be a light-mixing device that transmits a part of the excitation light and emits the light generated by the excitation light and the irradiation of the excitation light.

The light-emitting device 1 comprises a unit 10. As shown in FIG. 2, the unit 10 includes an internal space 10a. The thickness of the internal space 10a is, for example, about 5 to 500 μm, preferably about 10 to 100 μm.

An illuminant is enclosed in the internal space 10a. Specifically, the inner space 10a is sealed with a dispersion medium and dispersed in the dispersion medium. Light-emitting member 11 of a light body. The dispersion medium is not particularly limited as long as the illuminant is preferably dispersed. The dispersion medium can be either a liquid or a resin, glass or the like.

The type of the illuminant is not particularly limited. Examples of the illuminant include phosphors such as inorganic phosphors and organic phosphors. Among these, an inorganic phosphor is preferred.

Specific examples of the inorganic phosphor that emits blue visible light (fluorescence having a wavelength of 440 to 480 nm) when irradiated with ultraviolet to near-ultraviolet excitation light having a wavelength of 300 to 440 nm include Sr ₅ (PO ₄ ) ₃ Cl. : Eu ²⁺ , (Sr, Ba) MgAl ₁₀ O ₁₇ : Eu ²⁺ and the like. Specific examples of the inorganic phosphor that emits green visible light (fluorescence having a wavelength of 500 nm to 540 nm) when irradiated with ultraviolet to near-ultraviolet excitation light having a wavelength of 300 to 440 nm include SrAl ₂ O ₄ :Eu ^{2 . +} , SrGa ₂ S ₄ : Eu ²⁺ and the like. Specific examples of the inorganic phosphor that emits green visible light (fluorescence having a wavelength of 500 nm to 540 nm) when irradiated with blue excitation light having a wavelength of 440 to 480 nm include SrAl ₂ O ₄ :Eu ²⁺ . SrGa ₂ S ₄ : Eu ²⁺ or the like. Specific examples of the inorganic phosphor that emits yellow visible light (fluorescence having a wavelength of 540 nm to 595 nm) when irradiated with ultraviolet to near-ultraviolet excitation light having a wavelength of 300 to 440 nm include ZnS:Eu ²⁺ and the like. Specific examples of the inorganic phosphor that emits yellow visible light (fluorescence having a wavelength of 540 nm to 595 nm) when irradiated with blue excitation light having a wavelength of 440 to 480 nm include Y ₃ (Al, Gd) ₅ O. ₁₂ : Ce ²⁺ and so on. Specific examples of the inorganic phosphor that emits red visible light (fluorescence having a wavelength of 600 nm to 700 nm) when irradiated with ultraviolet to near-ultraviolet excitation light having a wavelength of 300 to 440 nm include Gd ₃ Ga ₄ O ₁₂ : Cr ³⁺ , CaGa ₂ S ₄ : Mn ²⁺ and the like. Specific examples of the inorganic phosphor that emits red visible light (fluorescence having a wavelength of 600 nm to 700 nm) when irradiated with blue excitation light having a wavelength of 440 to 480 nm include Mg ₂ TiO ₄ : Mn ⁴⁺ . K ₂ SiF ₆ : Mn ⁴⁺ or the like. Further, as the inorganic phosphor, those having a particle diameter of about 5 μm to 50 μm can be used.

The inorganic phosphor can also be a quantum dot. A quantum dot is a light that emits light of a different wavelength from the excitation light when the excitation light is incident. The wavelength of light emerging from the quantum dots depends on the particle size of the quantum dots. That is, the wavelength of the obtained light can be adjusted by changing the particle diameter of the quantum dot. Therefore, the particle diameter of the quantum dot is made to correspond to the wavelength of the wavelength of light to be obtained.

As the quantum dot, for example, a particle diameter of about 2 nm to 10 nm can be used. For example, a specific example of a quantum dot which emits blue visible light (fluorescence of a wavelength of 400 to 440 nm) when irradiated with ultraviolet to near ultraviolet light having a wavelength of 300 nm to 440 nm, and a particle diameter of 2.0 nm to 3.0 is exemplified. Crystallites of CdSe around nm. The specificity of a quantum dot emitting green visible light (fluorescence with a wavelength of 500 nm to 540 nm) when irradiated with ultraviolet to near-ultraviolet excitation light having a wavelength of 300 to 440 nm or blue excitation light having a wavelength of 440 nm to 480 nm. Examples thereof include crystallites of CdSe having a particle diameter of about 3.0 nm to 3.3 nm. As the excitation light of ultraviolet to near-ultraviolet light having a wavelength of 300 nm to 440 nm or the blue excitation light having a wavelength of 440 nm to 480 nm, a quantum dot of yellow visible light (fluorescence with a wavelength of 540 nm to 595 nm) is emitted. Specific examples include crystallites of CdSe having a particle diameter of about 3.3 nm to 4.5 nm. As an excitation light of ultraviolet to near-ultraviolet light having a wavelength of 300 nm to 440 nm or blue light having a wavelength of 440 nm to 480 nm, a quantum dot of red visible light (fluorescence with a wavelength of 600 nm to 700 nm) is emitted. Specific examples include a particle size of 4.5 Microcrystals of CdSe at around nm~10 nm.

One or a plurality of illuminants are enclosed in the internal space 10a in accordance with the wavelength region of the excitation light or the color to be illuminated.

As shown in FIGS. 3 and 4, the unit 10 includes a first main wall portion 12 and a second main wall portion 13. The first main wall portion 12 and the second main wall portion 13 are opposed to each other at intervals in the x and y directions. The first main wall portion 12 is parallel to the second main wall portion 13. Each of the first main wall portion 12 and the second main wall portion 13 has a polygonal shape. Specifically, each of the first main wall portion 12 and the second main wall portion 13 has a rectangular shape.

It is not necessary for both the first main wall portion 12 and the second main wall portion 13 to penetrate the excitation light and the light emitted from the self-illuminating body. However, at least one of the first main wall portion 12 and the second main wall portion 13 must be such that the excitation light is transmitted. Further, at least one of the first main wall portion 12 and the second main wall portion 13 must be a light penetrating light emitted from the light-emitting body. For example, the first main wall portion 12 may be a person who transmits the excitation light, and the second main wall portion 13 may be a light penetrating light emitted from the self-illuminating body.

Examples of the material constituting the first main wall portion 12 and the second main wall portion 13 include glass, resin, ceramics, and the like. The glass system has high light transmittance and is excellent in workability and weather resistance. Therefore, it is preferable that the first main wall portion 12 and the second main wall portion 13 include glass.

The thickness of each of the first main wall portion 12 and the second main wall portion 13 is not particularly limited, and may be, for example, about 0.02 mm to 10 mm.

A side wall portion 14 is disposed between the first main wall portion 12 and the second main wall portion 13. The side wall portion 14, the first main wall portion 12, and the second main wall portion 13 are formed to define an internal space 10a in which the light-emitting member 11 is sealed.

Examples of the material constituting the side wall portion 14 include glass, resin, and ceramics. Porcelain, etc. The side wall portion 14 preferably contains glass in terms of light penetration, workability, weather resistance, and the like.

The side wall portion 14 includes four side wall portions 14a, 14b, 14c, and 14d.

The side wall portion 14a is disposed along one of the first main wall portion 12 and the second main wall portion 13 side 12a, 13a. The side wall portion 14a y1 side end portion 14a3 reaches the y1 side end surface of the first main wall portion 12 and the second main wall portion 13, and the y2 side end portion 14a2 does not reach the y2 side end surface. The side wall portion 14d is located between the y2-side end portion 14a2 of the side wall portion 14a and the first main wall portion 12 and the y2-side end surface of the second main wall portion 13. A space W3 is provided between the y2 side end portion 14a2 of the side wall portion 14a and the side wall portion 14d.

The side wall portion 14b is disposed along the sides 12b and 13b of the first main wall portion 12 and the second main wall portion 13 adjacent to the sides 12a and 13a. The side wall portion 14b is formed on the x1 side end surface 14b3 and reaches the x1 side end surface of the first main wall portion 12 and the second main wall portion 13, and the x2 side end portion 14b2 does not reach the x2 side end surface. The side wall portion 14a is located between the x2 side end portion 14b2 of the side wall portion 14b and the first main wall portion 12 and the x2 side end surface of the second main wall portion 13. A space W1 is provided between the x2 side end portion 14b2 of the side wall portion 14b and the side wall portion 14a.

The side wall portion 14c is disposed along the sides 12c and 13c of the first main wall portion 12 and the second main wall portion 13 adjacent to the sides 12b and 13b. The side wall portion 14c y2 side end portion 14c3 reaches the y2 side end faces of the first main wall portion 12 and the second main wall portion 13. On the other hand, the y1 side end portion 14c2 does not reach the y1 side end surface. The side wall portion 14b is located between the y1 side end portion 14c2 of the side wall portion 14c and the first main wall portion 12 and the y1 side end surface of the second main wall portion 13. A space W2 is provided between the y1 side end portion 14c2 of the side wall portion 14c and the side wall portion 14b.

The side wall portion 14d is disposed along the sides 12d and 13d of the first main wall portion 12 and the second main wall portion 13 adjacent to the sides 12c and 13c. The side wall portion 14d is at the x2 side end portion 14d3 and reaches the x2 side end surface of the first main wall portion 12 and the second main wall portion 13, and the x1 side end portion 14d2 does not reach the x1 side end surface. The side wall portion 14c is located between the x1 side end portion 14d2 of the side wall portion 14d and the first main wall portion 12 and the second main wall portion 13 at the x1 side end surface. A space W4 is provided between the x1 side end portion 14d2 of the side wall portion 14d and the side wall portion 14c.

Each of the intervals W1 to W4 is preferably 0.1 to 1.0 mm, more preferably 0.1 to 0.5 mm. The intervals W1 to W4 may be equal to each other or different.

The side wall portion 14b is disposed such that the one end portion 14b2 is adjacent to the side wall portion 14a. More specifically, the side wall portion 14b is disposed such that the one end portion 14b2 faces the end portion 14a3 of the side wall portion 14a. The side wall portion 14c is disposed such that the one end portion 14c2 is adjacent to the end portion 14b3 of the side wall portion 14b. The side wall portion 14d is disposed such that the one end portion 14d2 is adjacent to the end portion 14c3 of the side wall portion 14c.

The side wall portion 14a includes a fusion portion 14a1. The fusion portion 14a1 is provided in a portion of the width direction of the side wall portion 14a, that is, in the x direction. The fusion portion 14a1 is provided so as to extend from the longitudinal direction of the side wall portion 14a, that is, the one end portion in the y direction to the other end portion. The entire fusion portion 14a1 is fused to each of the first main wall portion 12 and the second main wall portion 13. The portion other than the welded portion 14a1 of the side wall portion 14a is not fused to the first main wall portion 12 and the second main wall portion 13, respectively. In other words, the side wall portion 14a is fused to the first main wall portion 12 and the second main wall portion 13 in a part of the width direction of the side wall portion 14a, that is, in the x direction.

The side wall portion 14b includes a fusion portion 14b1. The fusion portion 14b1 is provided in a portion of the width direction of the side wall portion 14b, that is, in the y direction. The fusion part 14b1 is self-contained The longitudinal direction of the side wall portion 14b, that is, the one end portion in the x direction reaches the other end portion. The entire fusion portion 14b1 is fused to the first main wall portion 12 and the second main wall portion 13. The portion other than the welded portion 14b1 of the side wall portion 14b is not fused to the first main wall portion 12 and the second main wall portion 13, respectively. In other words, the side wall portion 14b is fused to the first main wall portion 12 and the second main wall portion 13 in a part of the width direction of the side wall portion 14b, that is, in the y direction.

The side wall portion 14c includes a fusion portion 14c1. The fusion portion 14c1 is provided in a portion of the width direction of the side wall portion 14c, that is, in the x direction. The fusion portion 14c1 is provided so as to extend from one end side in the y direction of the side wall portion 14c to the other end portion. The entire fusion portion 14c1 is fused to each of the first main wall portion 12 and the second main wall portion 13. The portion other than the welded portion 14c1 of the side wall portion 14c is not fused to the first main wall portion 12 and the second main wall portion 13, respectively. In other words, the side wall portion 14c is fused to the first main wall portion 12 and the second main wall portion 13 in a part of the width direction of the side wall portion 14c, that is, in the x direction.

The side wall portion 14d includes a fusion portion 14d1. The fusion portion 14d1 is provided in a portion of the width direction of the side wall portion 14a, that is, in the y direction. The fusion portion 14d1 is provided from the longitudinal direction of the side wall portion 14d, that is, the one end portion in the x direction to the other end portion. The entire fusion portion 14d1 is fused to each of the first main wall portion 12 and the second main wall portion 13. The portion other than the welded portion 14d1 of the side wall portion 14d is not fused to the first main wall portion 12 and the second main wall portion 13, respectively. In other words, the side wall portion 14d is fused to the first main wall portion 12 and the second main wall portion 13 in a part of the width direction of the side wall portion 14d, that is, in the y direction.

The y2 side end portion 14a2 and the side wall portion 14d of the side wall portion 14a are fused to each other by heating by a laser or the like, for example, and the connection portion 16a is formed and connected. Connection The entirety of 16a is fused to each of the first main wall portion 12 and the second main wall portion 13. The dimension in the width direction (x direction) of the connecting portion 16a is smaller than the dimension in the width direction (x direction) of the side wall portion 14a. The dimension in the width direction (x direction) of the connecting portion 16a is preferably 0.5 times or less, more preferably 0.2 times or less the dimension in the width direction (x direction) of the side wall portion 14a. Specifically, the connecting portion 16a connects the outer side portion in the width direction of the y2-side end portion 14a2 of the side wall portion 14a to the side wall portion 14d. The inner portion in the width direction of the y2-side end portion 14a2 of the side wall portion 14a and the side wall portion 14d are not connected by the connecting portion 16a.

The x2 side end portion 14b2 of the side wall portion 14b and the side wall portion 14a are connected by the connecting portion 16b. The entire connecting portion 16b is fused to each of the first main wall portion 12 and the second main wall portion 13. The dimension in the width direction (y direction) of the connecting portion 16b is smaller than the dimension in the width direction (y direction) of the side wall portion 14b. The dimension in the width direction (y direction) of the connecting portion 16b is preferably 0.5 times or less, more preferably 0.2 times or less the dimension of the width direction (y direction) of the side wall portion 14b. Specifically, the connecting portion 16b connects the outer side portion in the width direction of the x2 side end portion 14b2 of the side wall portion 14b to the side wall portion 14a. The inner portion in the width direction of the x2 side end portion 14b2 of the side wall portion 14b and the side wall portion 14a are not connected by the connecting portion 16b.

The y1 side end portion 14c2 and the side wall portion 14b of the side wall portion 14c are connected by a connecting portion 16c. The entire connecting portion 16c is fused to each of the first main wall portion 12 and the second main wall portion 13. The dimension of the connecting portion 16c in the width direction (x direction) is smaller than the dimension of the width direction (x direction) of the side wall portion 14c. The dimension of the width direction (x direction) of the connecting portion 16c is preferably 0.5 times or less, more preferably 0.2 times or less the dimension of the width direction (x direction) of the side wall portion 14c. Specifically, the connecting portion 16c is an outer side portion in the width direction of the y1 side end portion 14c2 of the side wall portion 14c. The side wall portions 14b are connected. The inner side portion in the width direction of the y1 side end portion 14c2 of the side wall portion 14c and the side wall portion 14b are not connected by the connecting portion 16c.

An opening 10b communicating with the internal space 10a is formed between the x1 side end portion 14d2 of the side wall portion 14d and the side wall portion 14c. The opening 10b is for injecting the light emitting member 11 into the internal space 10a. The opening 10b is sealed by the sealing member 15.

Specifically, in the present embodiment, each of the first main wall portion 12 and the second main wall portion 13 of the unit 10 includes a glass plate. The side wall portions 14a to 14d each include a glass ribbon.

Moreover, there is a case where the unit 10 of the light-emitting device 1 is subjected to bending stress. As shown in FIG. 5, if the unit 10 is subjected to bending stress and the unit 10 is bent, for example, the shortest distance between the end portion 14b2 and the side wall portion 14a is shortened. Here, when the end portion 14b2 is in contact with the side wall portion 14a, the portion other than the fusion portion 14b1 of the end portion 14b2 that is not fused to the first main wall portion 12 and the second main wall portion 13 is fused with the side wall portion 14a. The part other than the part 14a1 is in contact, resulting in damage.

On the other hand, the light-emitting device 1 is provided with a space between the end portions 14b2, 14c2, 14d2, and 14a2 and the side wall portions 14a, 14b, 14c, and 14d. Therefore, even if the unit 10 is bent, the end portions 14b2, 14c2, 14d2, 14a2 and the side wall portions 14a, 14b, 14c, 14d are not easily contacted. Therefore, damage to the side wall portions 14a to 14d can be suppressed.

When the side wall portions 14a to 14d include glass, the side wall portions 14a to 14d are easily broken by contact. Therefore, the technique of suppressing the damage of the side wall portions 14a to 14d of the present embodiment is such that the side wall portions 14a to 14d contain glass. especially It works.

Next, an example of a method of manufacturing the light-emitting device 1 of the embodiment will be described. However, the following manufacturing methods are merely examples, and the method of manufacturing the light-emitting device of the present invention is not limited to the following production methods.

Fig. 6 is a schematic plan view for explaining a method of manufacturing the light-emitting device of the embodiment. Fig. 7 is a schematic plan view for explaining a method of manufacturing the light-emitting device of the embodiment. Figure 8 is a schematic cross-sectional view taken along line VII-VII of Figure 7. Fig. 9 is a schematic cross-sectional view for explaining a method of manufacturing the light-emitting device of the embodiment.

Next, an example of a method of manufacturing the light-emitting device 1 of the present embodiment will be described with reference to Figs. 6 to 9 . However, the following manufacturing method is merely an example, and the manufacturing method of the light-emitting device 1 of the present invention is not limited to the following manufacturing methods.

(Manufacturing method of light emitting device)

First, the first glass sheets and the second glass sheets 20 and 21 for constituting the main wall portions 12 and 13 are prepared. Next, as shown in Fig. 6, the glass ribbons 30a to 30d for constituting the side wall portions 14a to 14d are disposed on the peripheral edge portion of the glass sheet 21. At this time, intervals W30, W10, W20, and W40 are provided in advance between the end portions 30a2, 30b2, 30c2, and 30d2 of the glass ribbons 30a to 30d and the glass ribbons 30d, 30a, 30b, and 30c, respectively.

Next, as shown in FIGS. 7 and 8, the glass ribbons 30a, 30b, 30c, and 30d are inserted into the second glass sheet 21, and the first glass sheet 20 is laminated. Thereby, the laminated body 40 in which the second glass plate 21, the glass ribbons 30a, 30b, 30c, and 30d and the first glass plate 20 are laminated in this order is obtained.

The first glass plate 20 and the second glass plate 21 are opposed to each other with a space therebetween. Between the first glass plate 20 and the second glass plate 21, the glass ribbons 30a to 30d are arranged along the sides of the plurality of sides 20a to 20d and 21a to 21d of the first glass plate 20 and the second glass plate 21, and are arranged in a ring. shape. Specifically, the glass ribbon 30b is disposed along the sides 20b and 21b of the first glass sheet 20 and the second glass sheet 21. The glass ribbon 30a is disposed along the sides 20a and 21a of the first glass sheet and the second glass sheet adjacent to the sides 20b and 21b. The glass ribbon 30d is disposed along the sides 20d and 21d of the first glass sheet 20 and the second glass sheet 21 adjacent to the sides 20a and 21a. The glass ribbon 30c is disposed along the second sides 20c and 21c of the first glass sheet 20 and the second glass sheet 21 adjacent to the sides 20d and 21d.

The end portions 30a3 on the sides 20b and 21b of the glass ribbon 30a are inserted between the sides 20a, 21a and the glass ribbon 30b. More specifically, the end portion 30a3 of the glass ribbon 30a is disposed between the end portion 30b2 on the side 20a, 21a side of the glass ribbon 30b and the sides 20a, 21a. At this time, a space W10 is provided between the end portion 30b2 of the glass ribbon 30b and the glass ribbon 30a.

The end portions 30b3 on the sides 20c and 21c of the glass ribbon 30b are inserted between the sides 20b and 21b and the glass ribbon 30c. More specifically, the end portion 30b3 of the glass ribbon 30b is disposed between the end portion 30c2 on the sides 20b and 21b side of the glass ribbon 30c and the sides 20b and 21b. At this time, a space W20 is provided between the end portion 30c2 of the glass ribbon 30c and the glass ribbon 30b.

The end portions 30c3 on the sides 20d and 21d of the glass ribbon 30c are inserted between the sides 20c, 21c and the glass ribbon 30d. More specifically, the end portion 30c3 of the glass ribbon 30c is disposed between the end portion 30d2 on the sides 20c and 21c side of the glass ribbon 30d and the sides 20c and 21c. At this time, at the end 30d2 of the glass ribbon 30d and the glass ribbon 30c Set the interval W40 between.

The end portion 30d3 on the sides 20a and 21a of the glass ribbon 30d is inserted between the sides 20d and 21d and the glass ribbon 30a. More specifically, the end portion 30d3 of the glass ribbon 30d is disposed between the end portion 30a2 on the sides 20d and 21d of the glass ribbon 30a and the sides 20d and 21d. At this time, a space W30 is provided between the end portion 30a2 of the glass ribbon 30a and the glass ribbon 30d.

The interval W10 to W40 is preferably 0.1 mm to 1.0 mm, more preferably 0.1 mm to 0.5 mm. The intervals W10 to W40 may be equal to each other or different from each other.

In the laminated body 40, the outer side surfaces 20a3 to 20d3, 21a3 to 21d3 of the first glass sheet 20 and the second glass sheet 21 and the outer side surfaces 30a1 to 30d1 of the glass ribbons 30a to 30d have the same surface.

Next, in the fusing step, the glass ribbons 30a to 30d are fused with the glass sheets 20 and 21 by irradiating the laminated body 40 with the laser light 50.

The laser light 50 is along the sides 20a, 21a, the sides 20b, 21b, the sides 20c, 21c, and the sides 20d, 21d of the laminated body 40, from one side end portions 20a1, 21a1, 20b1, 21b1, 20c1 21c1, 20d1, and 21d1 are scanned to the other side end portions 20a2, 21a2, 20b2, 21b2, 20c2, 21c2, 20d2, and 21d2, respectively.

At this time, the scanning of the laser light 50 along the sides 20c and 21c of the first glass sheet 20 and the second glass sheet 21 is performed on the y1 side from the side opposite to the sides 20b and 21b toward the sides 20b and 21b, that is, the y1 side. . More specifically, as shown in FIGS. 7 and 9, the scanning of the laser light 50 along the sides 20c and 21c of the first glass sheet 20 and the second glass sheet 21 is performed on the y2 side of the outer side surface 30c1 of the glass ribbon 30c. End 30c3 towards The sequence is performed on the y1 side. Thereby, the y1 side end portion 30c2 of the glass ribbon 30c and the glass ribbon 30b are respectively melted and connected.

The scanning of the laser light 50 along the sides 20b and 21b of the first glass sheet 20 and the second glass sheet 21 is performed on the x1 side from the side opposite to the sides 20a and 21a toward the sides 20a and 21a, that is, on the x2 side. More specifically, the scanning of the laser light 50 along the sides 20b and 21b of the first glass sheet 20 and the second glass sheet 21 is sequentially performed from the x1 side end portion 30b3 of the outer side surface 30b1 of the glass ribbon 30b toward the x2 side. . Thereby, the x2 side end portion 30b2 of the glass ribbon 30b and the glass ribbon 30a are respectively melted and connected.

The scanning of the laser light 50 along the sides 20a and 21a of the first glass sheet 20 and the second glass sheet 21 is performed on the side of the y1 side opposite to the sides 20d and 21d toward the sides 20d and 21d, that is, the y2 side. More specifically, the scanning of the laser light 50 along the sides 20a and 21a of the first glass sheet 20 and the second glass sheet 21 is sequentially performed from the y1 side end portion 30a3 of the outer side surface 30a1 of the glass ribbon 30a toward the y2 side. . Thereby, the y1 side end portion 30a2 of the glass ribbon 30a and the glass ribbon 30d are respectively melted and connected.

The scanning of the laser light 50 along the sides 20d and 21d of the first glass sheet 20 and the second glass sheet 21 is performed on the x2 side opposite to the sides 20c and 21c of the glass sheets 20 and 21 toward the sides 20c and 21c. The x1 side is performed. The scanning of the laser light 50 along the sides 20d and 21d of the first glass sheet 20 and the second glass sheet 21 is sequentially performed from the x2 side end portion 30d3 of the outer side surface 30d1 of the glass ribbon 30d toward the x1 side. The portion where the interval W40 between the end portion 30d2 of the laminated body 40 and the glass ribbon 30c is not irradiated with the laser light 50. That is, the glass ribbon 30a and the glass ribbon 30b are not connected to each other. This is because the light-emitting device 1 is provided with the through hole 10b.

The order in which each of the first glass sheet 20 and the second glass sheet 21 and the glass ribbons 30a, 30b, 30c, and 30d are fused is not particularly limited. For example, it can be performed in the following order. That is, the non-adjacent sides 20a and 21a of the first glass sheet 20 and the second glass sheet 21 are continuously fused with the sides 20c and 21c. Next, the non-adjacent sides 20b and 21b of the first glass sheet 20 and the second glass sheet 21 are continuously fused with the sides 20d and 21d. At this time, the fusion of the sides 20b, 21b and the sides 20d, 21d adjacent to the sides 20a, 21a and the sides 20c, 21c which are not adjacent are preferably fused by the sides 20a, 21a and the sides 20c, 21c. At about 70% of the output of the laser light 50 is about 95%, and the laser light 50 is irradiated for a plurality of times. Thereby, the glass plates 20 and 21 of the sides 20a-20d and 21a-21d of the 1st glass plate 20 and the 2nd glass plate 21 and the glass ribbons 30a-30d can fuse more uniformly.

Further, the irradiation of the laser light 50 can be performed by irradiation with a CO ₂ laser or the like by using the laser light irradiation device 51.

The unit 10 can be completed by the above processing.

Next, the illuminator is sealed into the internal space 10a from the through hole 10b. The method of encapsulating the illuminant is not particularly limited. The method of encapsulating the illuminant which is preferably used is, for example, a method in which the light-emitting member 11 including the liquid in which the illuminant is dispersed is supplied to the internal space 10a while the internal space 10a is in a reduced-pressure environment.

Finally, the sealing member 15 is disposed so as to cover the through hole (sealing hole) 10b, and the sealing member 15 is fused to the unit 10 by irradiation of the laser, thereby blocking the through hole 10b. The light-emitting device 1 can be manufactured by the above steps.

Furthermore, it is also conceivable, for example, to make the first glass sheet 20 and the second glass sheet 21 along the first glass sheet 20 and the second glass sheet 21 The irradiation of the laser light 50 of the sides 20c and 21c is performed from the y1 side end portions 20c2, 21c2 via the portion where the interval W20 between the y1 side end portion 30c2 of the glass ribbon 30c and the glass ribbon 30b is located, toward the y2 side end portion 30c3. get on. However, in this case, the glass ribbon or the glass sheet is easily broken when the laser light is irradiated. The reason for this is considered to be that when the irradiation of the laser light 50 is started, the discontinuous portion of the glass ribbon (near the interval W20) is immediately heated, and it is easy to locally generate a large temperature difference or a difference in thermal expansion.

On the other hand, in the manufacturing method of the present embodiment, the scanning of the laser light 50 along the sides 20c and 21c of the first glass sheet 20 and the second glass sheet 21 is on the y2 side opposite to the sides 20b and 21b. The y1 side toward the sides 20b and 21b is sequentially performed. Then, in the glass ribbon 30c, the portion of the laser light 50 to which the interval W20 between the y1 side end portion 30c2 and the glass ribbon 30b is located is finally irradiated. That is, heating and expansion along the sides 20c and 21c of the first glass sheet 20 and the second glass sheet 21 are continuously performed before the irradiation of the portion where the laser light 50 is discontinuous (near the space W20). At this time, the temperature in the vicinity of the interval W20 rises before the laser beam is directly heated in the vicinity of the interval W20. Therefore, when directly heated by the laser light in the vicinity of the interval W20, it is possible to suppress a sudden temperature difference or thermal expansion. In this case, the irradiation of the laser light 50 along the sides 20a and 21a and the sides 20b and 21b of the first glass sheet 20 and the second glass sheet 21 is also the same. Therefore, in the fusing step of the laminated body 40 using the laser light 50, the manufacturing method of the present embodiment exhibits an excellent effect that the glass sheets 20 and 21 or the glass ribbons 30a to 30d are not easily broken.

Further, for example, as shown in FIG. 10, the outer side surface 30c1 of the glass ribbon 30c is located larger outside than the outer side surfaces 20c3, 21c3 of the glass sheets 20, 21. In the case where the outer side surface 30c1 of the glass ribbon 30c is located larger inside than the outer side surfaces 20c3 and 21c3 of the glass sheets 20 and 21, as shown in FIG. 11, and in the first glass sheet 20 as shown in FIG. When the outer side surface 20c3 is located larger outside than the outer side surface 21c3 of the second glass sheet 21, only the protruding portion is easily overheated, so that the glass plate or the glass ribbon is easily broken. Therefore, the distance W50 shown in Fig. 10 is preferably 0.3 mm or less. The distance W51 shown in Fig. 11 is preferably 0.3 mm or less. The distance W52 shown in Fig. 12 is preferably 0.3 mm or less. Further, the end surface of the glass plate 20, the end surface of the glass plate 21, and the end surface of the glass ribbon are preferably the same surface.

In the reference examples shown in FIGS. 10 to 12, members having substantially the same functions as those of the above-described embodiments are denoted by the same reference numerals, and description thereof will be omitted.

Hereinafter, other examples of preferred embodiments of the present invention will be described. In the following description, members having functions substantially the same as those in the first embodiment are referred to by the same reference numerals, and description thereof will be omitted.

(Second embodiment)

Fig. 13 is a schematic plan view of a light-emitting device 2 in a second embodiment. In the first embodiment, as shown in FIG. 2, an example in which the through hole 10b and the sealing member 15 are formed between the one end portion 14d2 and the side wall portion 14c of the side wall portion 14d has been described. On the other hand, in the present embodiment, as shown in FIG. 13, the through hole 10b is provided on the inner surface of the main wall portion 12. Further, the through hole 10b is sealed by the sealing member 15 fused to the main wall portion 12.

One end portion 14d2 of the side wall portion 14d and the side wall portion 14c are connected by a connecting portion 16d. In the light-emitting device including the above configuration, the above The same effect as in the first embodiment.

In the first and second embodiments described above, the case where the main wall portions 12 and 13 have a quadrangular shape has been described. The present invention is not limited to this. In the present invention, the main wall portions 12 and 13 may have a polygonal shape, and may be, for example, a triangular shape, a pentagonal shape, a hexagonal shape, a seven-sided shape, or an octagonal shape.

1, 2‧‧‧ illuminating devices

10‧‧‧ unit

10a‧‧‧Internal space

10b‧‧‧through hole

11‧‧‧Lighting components

12, 13‧‧‧ main wall

12a, 12b, 12c, 12d‧‧‧ the side of the main wall

13a, 13b, 13c, 13d‧‧‧ the side of the main wall

14, 14a, 14b, 14c, 14d‧‧‧ side wall

14a1, 14b1, 14c1, 14d1‧‧‧ fusion

14a2, 14b2, 14c2, 14d2‧‧‧ end of the side wall

14a3, 14b3, 14c3, 14d3‧‧‧ end of the side wall

15‧‧‧ Sealing members

16a, 16b, 16c‧‧‧ Connections

20, 21‧‧‧ glass plates

20a, 20b, 20c, 20d‧‧‧ sides of the glass plate

21a, 21b, 21c, 21d‧‧‧ side of the glass plate

20a1, 20b1, 20c1, 20d1‧‧ ‧ end of glass plate

20a2, 20b2, 20c2, 20d2‧‧‧ end of glass plate

20a3, 20b3, 20c3, 20d3‧‧‧ outside side of the glass plate

21a1, 21b1, 21c1, 21d1‧‧ ‧ end of glass plate

21a2, 21b2, 21c2, 21d2‧‧ ‧ end of glass plate

21a3, 21b3, 21c3, 21d3‧‧‧ outside side of the glass plate

30a, 30b, 30c, 30d ‧ ‧ glass ribbon

30a1, 30b1, 30c1, 30d1‧‧‧ outside side of the glass ribbon

30a2, 30b2, 30c2, 30d2‧‧ ‧ end of glass ribbon

30a3, 30b3, 30c3, 30d3‧‧ ‧ end of glass ribbon

40‧‧‧Layered body

50‧‧‧Laser light

51‧‧‧Laser light irradiation device

W1, W2, W3, W4‧‧‧ interval

W10, W20, W30, W40‧‧‧ interval

W50, W51, W52‧‧‧ distance

Fig. 1 is a schematic perspective view of a light-emitting device of a first embodiment.

Fig. 2 is a schematic plan view of a light-emitting device of a first embodiment.

Figure 3 is a schematic cross-sectional view taken along line III-III of Figure 2.

Figure 4 is a schematic cross-sectional view taken along line IV-IV of Figure 2.

Fig. 5 is a schematic cross-sectional view showing an enlarged portion V of Fig. 4 when the light-emitting device is bent in the x direction.

Fig. 6 is a schematic plan view for explaining a method of manufacturing a light-emitting device according to an embodiment of the present invention.

Fig. 7 is a schematic plan view for explaining a method of manufacturing a light-emitting device according to an embodiment of the present invention.

Figure 8 is a schematic cross-sectional view taken along line VII-VII of Figure 7.

Fig. 9 is a schematic cross-sectional view for explaining a method of manufacturing a light-emitting device according to an embodiment of the present invention.

Fig. 10 is a schematic cross-sectional view for explaining a first reference example.

Fig. 11 is a schematic cross-sectional view for explaining a second reference example.

Fig. 12 is a schematic cross-sectional view for explaining a third reference example.

Fig. 13 is a schematic plan view of a light-emitting device of a second embodiment.

1‧‧‧Lighting device

10‧‧‧ unit

10a‧‧‧Internal space

11‧‧‧Lighting components

12, 13‧‧‧ main wall

14a2‧‧‧End of the side wall

14c‧‧‧ Sidewall

14c1‧‧‧Fuse Department

16a‧‧‧Connecting Department

Claims (10)

A unit for a light-emitting device, comprising: a first main wall portion and a second main wall portion having a polygonal shape, which are opposed to each other at intervals; and a side wall portion disposed in the first main wall portion and the first portion Between the main wall portions, the first main wall portion and the second main wall portion are partitioned together to form an internal space in which the illuminator is sealed, and the side wall portion includes a first side wall portion along the first main wall. The first main wall portion and the second main wall portion are respectively fused to one of the second main wall portions and one of the width direction directions from the one end portion in the longitudinal direction to the other end portion. The second side wall portion is disposed along the other side of the first main wall portion and the second main wall portion adjacent to the one side, and the one end portion is adjacent to the first side wall portion, and is formed in one of the width directions One of the first main wall portion and the second main wall portion is fused to each other from the one end portion in the longitudinal direction to the other end portion; and the connecting portion and one end portion of the second side wall portion and the first portion a side wall portion is connected to each other, and is fused to each of the first main wall portion and the second main wall portion, and Direction is smaller than the size of the second side wall portion. The unit for a light-emitting device according to claim 1, wherein an interval between one end of the second side wall portion and the first side wall portion is 0.1 to 1.0 mm. The unit for a light-emitting device according to claim 1 or 2, wherein the side wall portion comprises glass. The unit for a light-emitting device according to claim 1 or 2, wherein the connecting portion is connected The outer side portion and the first side wall portion in the width direction of one end portion of the second side wall portion are integrally fused to each of the first main wall portion and the second main wall portion. The unit for a light-emitting device according to claim 3, wherein the connecting portion is connected to the outer side portion in the width direction of the end portion of the second side wall portion and the first side wall portion, and is integrally fused to the first main wall portion and Each of the second main wall portions. A light-emitting device comprising: the light-emitting device unit according to any one of claims 1 to 5; and an illuminant enclosed in the internal space. The light-emitting device of claim 6, wherein the luminescent system comprises an inorganic phosphor. The light-emitting device of claim 7, wherein the inorganic fluorescent system comprises quantum dots. A method for manufacturing a unit for a light-emitting device, comprising the steps of: forming a laminated body comprising: a first glass sheet; and a second glass sheet facing the first glass sheet at intervals; a glass ribbon disposed between each of the first glass sheet and the second glass sheet and disposed along each of a plurality of sides of the first glass sheet and the second glass sheet; and the plurality of glass ribbons include: a first glass ribbon And disposed along the first side of the first glass plate and the second glass plate; and the second glass ribbon along the second side of the first glass plate and the second glass plate adjacent to the first side And the end portion of the first side of the second glass ribbon is inserted between the second side and the first glass ribbon; and a fusing step of scanning the laser light from one side of the side to the other end along the sides of the plurality of sides of the laminated body, thereby forming the first glass plate and the second glass plate Each of the plurality of glass ribbons is fused to the plurality of glass ribbons; and in the fused step, the scanning of the laser light along the first side is performed from the opposite side of the second side toward the second side. The method of manufacturing a light-emitting device unit according to claim 9, wherein an interval between the end portion on the first side of the second glass ribbon and the first glass ribbon is 0.1 mm to 1.0 mm.