WO2016072313A1 - 導光部材及びそれを用いた光源装置 - Google Patents
導光部材及びそれを用いた光源装置 Download PDFInfo
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- WO2016072313A1 WO2016072313A1 PCT/JP2015/080174 JP2015080174W WO2016072313A1 WO 2016072313 A1 WO2016072313 A1 WO 2016072313A1 JP 2015080174 W JP2015080174 W JP 2015080174W WO 2016072313 A1 WO2016072313 A1 WO 2016072313A1
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- WIPO (PCT)
- Prior art keywords
- light guide
- light
- storage space
- wavelength conversion
- guide plate
- Prior art date
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
- G02B6/0021—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces for housing at least a part of the light source, e.g. by forming holes or recesses
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0026—Wavelength selective element, sheet or layer, e.g. filter or grating
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0028—Light guide, e.g. taper
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0045—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide
- G02B6/0046—Tapered light guide, e.g. wedge-shaped light guide
Definitions
- the present invention relates to a light guide member capable of converting the wavelength of light incident from a light incident surface and a light source device using the same.
- Patent Document 1 discloses an invention related to a light emitting device including a light source, a wavelength conversion member, a light guide plate, and the like.
- the wavelength converting member is provided between the light source and the light guide plate, and absorbs light emitted from the light source and then generates light having a wavelength different from that of the light.
- the wavelength conversion part substance is enclosed with cylindrical containers, such as glass, for example.
- the wavelength changing substance includes a fluorescent pigment, a fluorescent dye, a quantum dot, or the like.
- the wavelength conversion member has been provided separately from the light guide plate. For this reason, there existed a problem which a position shift tends to produce between a wavelength conversion member and a light-guide plate. In addition, there is a problem that the number of parts is increased by providing the wavelength conversion member separately from the light guide plate. Furthermore, it has been difficult to stably and accurately enclose the wavelength converting substance in the thin cylindrical container shown in Patent Document 1.
- the present invention has been made in view of the above points, and in particular, an object thereof is to provide a light guide member having a smaller number of parts than the conventional one and having stable wavelength conversion efficiency, and a light source device using the same. .
- the light guide member of the present invention includes a light guide plate, a storage space formed in the light guide plate so as to face the light incident surface, and a wavelength conversion substance disposed in the storage space.
- a storage space is provided in the light guide plate at a position facing the light incident surface, and the wavelength conversion substance is disposed in the storage space.
- the light guide member of the present invention integrates the function as the light guide plate and the wavelength conversion function. Therefore, unlike the conventional case where the light guide plate and the wavelength conversion member are provided separately, alignment between the light guide plate and the wavelength conversion member is not necessary, and the wavelength conversion efficiency can be stabilized. Further, in the present invention, the number of parts can be reduced as compared with the prior art. Furthermore, because the light guide plate with a large area is provided with a storage space for the wavelength conversion material, the wavelength conversion material is disposed in the storage space as compared with the case where the wavelength conversion material is placed in a thin cylindrical container as in the past. It is easy and the manufacturing process can be simplified. Further, it is possible to reduce the manufacturing cost based on the reduction of the number of parts and the facilitation of the manufacturing process.
- the wavelength converting substance includes quantum dots.
- the resin composition containing the said wavelength conversion substance is provided in the said storage space.
- the resin composition containing the wavelength converting substance can be injected into the storage space.
- the resin composition containing the said wavelength conversion substance consists of a molded object, and it can be set as the structure by which the said molded object is arrange
- a colored layer is formed in at least a part of the light guide plate excluding the light incident surface and the light output surface.
- the light source device of the present invention is characterized by having any one of the light guide members described above and a light emitting element.
- the light emitting element is integrally attached to the light incident surface of the light guide member.
- the number of parts can be reduced as compared with the conventional case, and stable wavelength conversion efficiency can be obtained. Furthermore, the manufacturing process can be simplified and the manufacturing cost can be reduced.
- FIG. 1 is a perspective view of a light guide member showing a first embodiment according to the present embodiment.
- X, Y, and Z shown in FIG. 1 are orthogonal to each other.
- Z indicates the height direction in the vertical direction of the paper surface
- the X direction indicates the depth direction of the paper surface
- the Y direction indicates the horizontal direction of the paper surface.
- FIG. 3 is a longitudinal sectional view of the light guide member shown in FIG. 1 cut along the line AA in the height direction (Z) and viewed from the arrow direction (X).
- the light guide member 11 includes a light guide plate 12, a storage space 5 formed inside the light incident surface 12 a of the light guide plate 12, and a wavelength conversion substance 3 disposed in the storage space 5. And having.
- the light guide plate 12 has a substantially flat plate shape, and one side surface of the light guide plate 12 is a light incident surface 12a.
- the “side surface” refers to a right side surface and a left side view shown in the drawings.
- the light guide plate 12 has a front surface (upper surface) 12b, a back surface (lower surface) 12c, a front surface 12d, and a back surface 12e.
- the front surface 12b and the back surface 12c are opposed to each other, and are in a relationship that is substantially orthogonal to the side surface, the front surface 12d, and the back surface 12e.
- the front surface 12d and the back surface 12e are opposed to each other, and are in a relationship substantially orthogonal to the side surface, the front surface 12b, and the back surface 12c.
- the light incident surface 12a is a surface parallel to the XZ plane
- the surface 12b is a surface flat with the XY plane.
- the back surface 12c is a surface parallel to the XY plane at a portion close to the light incident surface 12a, but is inclined slightly obliquely from the XY plane when separated from the light incident surface 12a.
- the front surface 12d and the rear surface 12e are surfaces parallel to the YZ plane. Note that the entire back surface 12c may be a surface parallel to the XY plane, or the entire back surface 12c may be a surface inclined slightly obliquely from the XY plane.
- the shape of the light guide plate 12 is not particularly limited.
- the surface 12b of the light guide plate 12 shown in FIG. 1 functions as a light exit surface 12f.
- the region substantially opposite to the wavelength converting material 3 is the wavelength converting region 12g, and the surface 12b farther from the wavelength converting material 3 when viewed from the light incident surface 12a is the light emitting surface 12f.
- the back surface 12c facing the light emitting surface 12f is a surface slightly inclined from the XY plane.
- the storage space 5 is a penetrating space from the front surface 12d to the back surface 12e, or only the front surface 12d is open and the back surface 12e side may be closed.
- the storage space 5 is preferably a through space.
- the storage space 5 is located inside the light incident surface 12a and also located inside the front surface 12b and the back surface 12c. However, a part of the storage space 5 may lead to the light incident surface 12a, the front surface 12b, or the back surface 12c.
- the storage space 5 is formed near the light incident surface 12a in the horizontal direction (Y) of the light guide plate 12. Accordingly, the wavelength conversion region 12g is formed only in a limited narrow region on the light incident surface 12a side of the light guide plate 12.
- L1-L2 is a region of the light emitting surface 12f.
- the wavelength converting substance 3 is provided in the storage space 5. It is preferable that the wavelength conversion substance 3 contains a quantum dot. Fluorescent pigments other than quantum dots, fluorescent dyes, and the like may be used as the wavelength conversion substance 3, but the inclusion of quantum dots is excellent in wavelength conversion characteristics.
- a resin composition containing the wavelength converting substance 3 is provided in the storage space 5.
- resins include polypropylene, polyethylene, polystyrene, AS resin, ABS resin, methacrylic resin, polyvinyl chloride, polyacetal, polyamide, polycarbonate, modified polyphenylene ether, polybutylene terephthalate, polyethylene terephthalate, polysulfone, polyethersulfone, and polyphenylene sulfide.
- Polyamideimide, polymethylpentene, liquid crystal polymer, epoxy resin, phenol resin, urea resin, melamine resin, epoxy resin, diallyl phthalate resin, unsaturated polyester resin, polyimide, polyurethane, silicone resin, or some mixture thereof Etc. can be used.
- the wavelength converting substance 3 is dispersed in the resin.
- the refractive index of the resin that disperses the wavelength converting substance 3 is preferably smaller than the refractive index of the light guide plate 12.
- the refractive index of the silicone resin is 1.52 for SCR1016 manufactured by Shin-Etsu Chemical Co., Ltd., 1.55 for A2045 manufactured by Daicel Corporation, at 23 ° C., sodium D line, manufactured by Shin-Etsu Chemical Co., Ltd. KER-2500 of 1.41 and A1080 manufactured by Daicel Corporation of 1.41.
- the refractive index of an epoxy resin is 1.51 in Cell Venus WO917 made from Daicel Corporation, and 1.50 in Cell Venus WO925 in sodium D line
- the refractive index of the light guide plate 12 is about 1.49 in the case of a general acrylic resin.
- the resin for dispersing the wavelength converting substance 3 and the material of the light guide plate 12 the refractive index of the resin can be made smaller than the refractive index of the light guide plate 12.
- A1080 or KER-2500 which is a silicone resin having a refractive index of 1.41, is used as a resin for dispersing the wavelength converting substance 3, and the light guide plate 12 can be made of an epoxy resin having a refractive index of 1.49.
- the structure and material of the quantum dot contained in the wavelength conversion substance 3 are not limited, for example, the quantum dot in this Embodiment has the core of a semiconductor particle, and the shell part which coat
- CdSe is used for the core, but the material is not particularly limited.
- CdS, CdSe, ZnS, ZnSe, InP, CdTe, some composites thereof, and the like can be used.
- Quantum dots include, for example, two types of quantum dots having an absorption wavelength of 460 nm (blue) and a fluorescence wavelength of about 520 nm (green) and a quantum dot of about 660 nm (red). For this reason, when blue light is incident from the light incident surface 12a, a part of blue is converted into green or red by each quantum dot. As a result, white light can be obtained from the light exit surface 12f.
- the back surface 12c facing the light emitting surface 12f is a light reflecting surface, and the light that has entered the light incident surface 12a and passed through the wavelength conversion region 12g is reflected by the back surface 12c and extracted from the light emitting surface 12f to the outside.
- the reflective layer 14 is provided on the back surface 12c facing the light emitting surface 12f.
- the reflective layer 14 is not provided, and the back surface 12c can be processed to form a reflective surface.
- the colored layer 4 is provided on the front surface 12b and the back surface 12c of the wavelength conversion region 12g.
- the colored layer 4 should just be formed in the at least one part area
- the “colored layer” is a layer that is not transparent, and refers to a layer colored in colors including white.
- the colored layer 4 is preferably composed of paint, ink, or tape. Moreover, although the color of the colored layer 4 is not limited, it is suitable that it is white. Therefore, the colored layer 4 can be easily formed simply by applying white paint or white ink to the front surface 12b and the back surface 12c, or simply applying a white tape to the front surface 12b and the back surface 12c.
- the colored layer 4 may not be formed.
- the storage space 5 is provided in the light guide plate 12 at a position facing the light incident surface 12 a, and the wavelength conversion substance 3 is disposed in the storage space 5.
- the light guide member 11 of the present embodiment has both a function as a light guide plate and a wavelength conversion function, and it is not necessary to separately provide the light guide plate and the wavelength conversion member as in the prior art.
- a light guide plate and a wavelength conversion member are provided separately, and in a form in which these members are combined, a boundary surface is generated between the light guide plate and the wavelength conversion member, and light is diffused and reflected at the boundary surface. Is likely to occur.
- light incident from the light incident surface 12a is guided from the wavelength conversion region 12g to the light emitting surface 12f through the integrated light guide plate 12. Therefore, stable wavelength conversion efficiency can be obtained and the light intensity can be increased.
- the number of parts can be reduced as compared with the conventional case. Furthermore, in this embodiment, since the wavelength conversion material 3 is disposed in the wavelength conversion material storage space 5 provided in the light guide plate 12 having a large area, a thin tubular container enclosing the wavelength conversion material is disposed as in the conventional case. The manufacturing process can be facilitated as compared with the case of doing so. In addition, the number of parts can be reduced, and the manufacturing cost can be reduced based on the simplification of the manufacturing process.
- the resin composition containing the wavelength conversion substance 3 may be injected into the storage space 5, or the resin composition containing the wavelength conversion substance 3 is formed of a molded body, and the molded body is the storage space 5. May be arranged.
- the form in which the resin composition containing the wavelength conversion substance 3 is injected into the storage space 5 may cause bubbles to enter the resin composition containing the wavelength conversion substance 3 as compared with the case where the molded body is inserted into the storage space 5. high. Therefore, as shown in FIG. 7, a molded body 40 made of a resin composition containing the wavelength converting substance 3 is previously molded by injection molding or the like, and the molded body 40 is inserted into the storage space 5. Is preferable because it can suppress the generation of bubbles.
- the molded body 40 may be manufactured using methods such as extrusion molding, hollow molding, thermoforming, compression molding, calendar molding, inflation method, and casting method.
- the molded body 40 can be formed to be equal to or slightly larger than the storage space 5, and the molded body 40 can be press-fitted into the storage space 5. Thereby, the outer peripheral surface of the molded object 40 and the wall surface of the storage space 5 can be stuck. Alternatively, the molded body 40 may be inserted into the storage space 5 in a state where the molded body 40 is formed slightly smaller than the storage space 5 and an adhesive is applied to the outer periphery of the molded body 40. Thereby, between the outer peripheral surface of the molded object 40 and the wall surface of the storage space 5 can be closely_contact
- the storage space 5 is provided in the light guide plate 12 with a large volume, and the molded object 40 is inserted in the storage space 5, it is compared with the case where a thin cylindrical container is used conventionally. Thus, the insertion of the molded body 40 can be facilitated. In addition, it is possible to suppress a problem that the member (the light guide body 12 in the present embodiment) side having the storage space 5 is damaged due to press-fitting of the molded body 40 or the like.
- FIG. 2 is a perspective view of a light guide member and a light source device using the same, showing a second embodiment according to the present embodiment.
- 4 is a longitudinal sectional view of the light source device shown in FIG. 2 cut along the line BB in the height direction (Z) and viewed from the arrow direction (X). 2 and 4, the same parts as those in FIGS. 1 and 3 are denoted by the same reference numerals as those in FIGS. 1 and 3.
- the light guide member 11 shown in FIGS. 2 and 4 includes the light guide plate 12, the storage space 5, and the wavelength conversion material 3, similarly to the light guide member 11 shown in FIGS. 1 and 3. 4, the distance L3 between the light incident surface 12a and the storage space 5 is formed longer than the distance L4 between the light incident surface 12a and the storage space 5 shown in FIG. For example, the distance L3 is about 1 mm to 8 mm.
- the light emitting element (LED) 10 is integrally attached to the light incident surface 12 a of the light guide member 11.
- the light source device 70 includes the light emitting element 10 and the light guide member 11.
- the wavelength conversion material 3 facing the light emitting element 10 is blackened when the wavelength conversion material 3 includes quantum dots. Was found to occur. The blackening is caused by the influence of light and / or heat from the light emitting element 10 on the quantum dots.
- the distance L3 between the wavelength conversion material 3 and the light incident surface 12a is increased in order to keep the wavelength conversion material 3 away from the light emitting element 10 in order to suppress the occurrence of blackening.
- the wavelength converting substance 3 can be appropriately moved away from the light emitting element 10.
- the occurrence of blackening can be suppressed as compared with the conventional case, and the light source device 70 can be easily assembled.
- FIG. 5 is a longitudinal sectional view of a display device using the light source device shown in FIG.
- the display device 50 includes a light emitting element 10 (LED), a light guide member 11, and a display unit 54 such as a liquid crystal display facing the light emitting surface 12 f of the light guide member 11.
- a diffusion plate 53 or the like is interposed between the display unit 54 and the light guide member 11.
- the diffusion plate 53 may not be provided.
- the light source device 70 disposed on the back surface of the display unit 54 functions as a backlight device.
- the colored layer 4 is formed on the outer surface of the light guide plate 12, but the colored layer 4 may be formed on the wall surface 5 a of the storage space 5 as shown in FIG. 6.
- the side portion 12 h of the light guide plate 12 between the side surface of the light guide plate 12 and the storage space 5 can be the colored layer 4.
- the light guide plate 12 is molded in two colors, and at this time, a colored resin is used for a portion to be the side portion 12 h of the light guide plate 12.
- the light guide plate 12 can be formed by bonding the side portion 12h of the light guide plate 12 and other portions by bonding or the like.
- the colored layer 4 may be provided at the positions of both ends 12i of the light guide plate 12 shown in FIG. As a result, light leakage from both ends of the light guide plate 12 can be suppressed, and color conversion can be performed appropriately and efficiently compared to the conventional case.
- the reflective layer 14 shown in FIG. 3 etc. may be dot-like.
- the present embodiment it is possible to irradiate the backlight having excellent wavelength conversion efficiency from the light source device 70 toward the display unit 54, and to improve the display characteristics as the display device 50.
- a light source device, a display device, and the like can be realized using a light guide member in which a wavelength conversion substance is disposed in a storage space provided in a light guide plate.
- a light guide member of the present invention since stable wavelength conversion efficiency can be obtained, a light source device, a display device and the like using the light guide member of the present invention can be maintained with high quality. Further, the number of parts of the light guide member can be reduced as compared with the conventional case, and the production costs of the light guide member, the light source device, and the display device can be reduced as compared with the conventional case.
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- Optics & Photonics (AREA)
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- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
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Abstract
Description
Claims (8)
- 導光板と、
前記導光板内であって光入射面と対向して形成された収納空間と、
前記収納空間に配置された波長変換物質と、を有することを特徴とする導光部材。 - 前記波長変換物質は、量子ドットを含むことを特徴とする請求項1に記載の導光部材。
- 前記波長変換物質を含む樹脂組成物が、前記収納空間に設けられることを特徴とする請求項1又は請求項2に記載の導光部材。
- 前記波長変換物質を含む樹脂組成物が、前記収納空間内に注入されていることを特徴とする請求項3に記載の導光部材。
- 前記波長変換物質を含む樹脂組成物は、成形体からなり、前記成形体が前記収納空間に配置されてなることを特徴とする請求項3に記載の導光部材。
- 前記導光板の前記光入射面及び光出射面を除く少なくとも一部の領域に、着色層が形成されていることを特徴とする請求項1から請求項5のいずれかに記載の導光部材。
- 請求項1から請求項6のいずれかに記載の導光部材と、発光素子とを有することを特徴とする光源装置。
- 前記発光素子が前記導光部材の前記光入射面に一体的に取り付けられていることを特徴とする請求項7に記載の光源装置。
Priority Applications (4)
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CN201580059831.9A CN107209414A (zh) | 2014-11-04 | 2015-10-27 | 导光部件和使用它的光源装置 |
JP2016557716A JP6815578B2 (ja) | 2014-11-04 | 2015-10-27 | 導光部材及びそれを用いた光源装置 |
US15/522,416 US10578791B2 (en) | 2014-11-04 | 2015-10-27 | Light guide member and light source unit using the same |
EP15856432.8A EP3217066A4 (en) | 2014-11-04 | 2015-10-27 | Light guide member and light source device in which same is used |
Applications Claiming Priority (2)
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JP2014-224054 | 2014-11-04 | ||
JP2014224054 | 2014-11-04 |
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WO2016072313A1 true WO2016072313A1 (ja) | 2016-05-12 |
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US (1) | US10578791B2 (ja) |
EP (1) | EP3217066A4 (ja) |
JP (1) | JP6815578B2 (ja) |
CN (1) | CN107209414A (ja) |
TW (1) | TW201621219A (ja) |
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WO2016171109A1 (ja) * | 2015-04-20 | 2016-10-27 | シャープ株式会社 | 照明装置、表示装置、及びテレビ受信装置 |
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JP6883159B2 (ja) * | 2014-11-04 | 2021-06-09 | Nsマテリアルズ株式会社 | 波長変換部材の製造方法 |
CN110231734A (zh) * | 2018-03-06 | 2019-09-13 | 中强光电股份有限公司 | 光源模块及其面光源组件 |
CN112162436B (zh) * | 2020-11-13 | 2022-04-08 | 福州大学 | 一种量子点背光模组结构 |
US11469060B1 (en) * | 2021-04-30 | 2022-10-11 | Logitech Europe S.A. | Light guide for a keyboard |
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JP2014116231A (ja) * | 2012-12-11 | 2014-06-26 | Panasonic Corp | 照明装置 |
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US7520652B2 (en) * | 2003-01-29 | 2009-04-21 | Mitsubishi Rayon Co., Ltd. | Area light source |
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- 2015-10-27 JP JP2016557716A patent/JP6815578B2/ja active Active
- 2015-10-27 EP EP15856432.8A patent/EP3217066A4/en not_active Withdrawn
- 2015-10-27 WO PCT/JP2015/080174 patent/WO2016072313A1/ja active Application Filing
- 2015-11-03 TW TW104136218A patent/TW201621219A/zh unknown
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JPWO2016171109A1 (ja) * | 2015-04-20 | 2018-02-08 | シャープ株式会社 | 照明装置、表示装置、及びテレビ受信装置 |
Also Published As
Publication number | Publication date |
---|---|
TW201621219A (zh) | 2016-06-16 |
JP6815578B2 (ja) | 2021-01-20 |
CN107209414A (zh) | 2017-09-26 |
EP3217066A4 (en) | 2018-07-04 |
US10578791B2 (en) | 2020-03-03 |
US20170329069A1 (en) | 2017-11-16 |
EP3217066A1 (en) | 2017-09-13 |
JPWO2016072313A1 (ja) | 2017-08-17 |
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