WO2008018575A1 - Phosphore, et pâte à base de phosphore et dispositif électroluminescent - Google Patents

Phosphore, et pâte à base de phosphore et dispositif électroluminescent Download PDF

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Publication number
WO2008018575A1
WO2008018575A1 PCT/JP2007/065675 JP2007065675W WO2008018575A1 WO 2008018575 A1 WO2008018575 A1 WO 2008018575A1 JP 2007065675 W JP2007065675 W JP 2007065675W WO 2008018575 A1 WO2008018575 A1 WO 2008018575A1
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Prior art keywords
phosphor
less
formula
fluorescent material
light
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Application number
PCT/JP2007/065675
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English (en)
Japanese (ja)
Inventor
Satoru Kuze
Yoshiko Nakamura
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Sumitomo Chemical Company, Limited
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Application filed by Sumitomo Chemical Company, Limited filed Critical Sumitomo Chemical Company, Limited
Publication of WO2008018575A1 publication Critical patent/WO2008018575A1/fr

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B33/00—Electroluminescent light sources
    • H05B33/12—Light sources with substantially two-dimensional radiating surfaces
    • H05B33/14—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material, or by the simultaneous addition of the electroluminescent material in or onto the light source
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
    • C09K11/7728—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing europium
    • C09K11/77342—Silicates

Definitions

  • the present invention relates to a phosphor, a phosphor paste, and an optical device.
  • the phosphor emits light by illuminating the excitation source, so it is used in the light-emitting element.
  • As the light-emitting element an electron-induced light emission in which the excitation source of the phosphor is an electron beam.
  • Ultraviolet light emitting devices for example, backlights for liquid crystal displays, three-wavelength fluorescent lamps, high-voltage devices, such as brown tubes, field emission displays, surface m displays, etc.
  • Vacuum ultraviolet excitation light emitting elements whose excitation source is vacuum ultraviolet light (for example, plasma display, Nell, rare gas lamp, etc.), phosphor excitation light emitted by blue LED or ultraviolet light Examples of the light emitted from the LED include white LEDs, etc.
  • the phosphor is usually used as a phosphor layer.
  • Japanese 2 0 0 6 1 0 4 4 4 5 No. consists is of ⁇ !
  • the formula C a ae S r a49 E u a (E Mg S i 2 ⁇ 6 A phosphor is disclosed.
  • the emission power S tends to decrease as the irradiation time force Sffii of the excitation source decreases.
  • the light emitting element having the phosphor has a light emitting characteristic that is not sufficient, and is difficult.
  • An object of the present invention is to provide a phosphor capable of obtaining a phosphor layer with a high fe® degree even after the irradiation time force of an excitation source is obtained, and a phosphor paste and a light emitting device using the phosphor. «To be.
  • the inventors of the present invention have intensively studied to solve the above l3 ⁇ 4S, and have arrived at the present invention.
  • the present invention provides the following ⁇ 1> to ⁇ 9>.
  • Agent based on the compound represented by formula (1) The first fluorescent material containing the force s and the second fluorescent material containing the activator (Inner active agent 2) based on the chemical formula ⁇ ) represented by formula (2) Including phosphor.
  • M u and M 12 are independently at least one selected from the group consisting of C a, S r and B a,
  • M 21 is independently at least one selected from the group consisting of Mg and Zn,
  • M 31 and M are independently at least one selected from the group consisting of S i and G e forces,
  • m 2.5 or more and 3.5 or less
  • n 0.5 or more and 1.5 or less
  • p is 0.5 or more and 1.5 or less
  • q is 0.5 or more and 1.5 or less.
  • a is 0 or more and less than 3,
  • b is 0 or more and less than 3,
  • c is greater than 0 and less than or equal to 0.2
  • a + b + c is more than 0 and less than 3.
  • e is greater than 0 and less than or equal to 0.2
  • ⁇ 6> Containing the first fluorescent substance and the second fluorescent substance so that the weight ratio of the first fluorescent substance to the second fluorescent substance is 50:50 to 5:95 ⁇ 1> to ⁇
  • Figure 1 shows the X-ray diffraction pattern of phosphor 1.
  • FIG. 2 shows the X-ray diffraction pattern of phosphor 2.
  • FIG. 3 shows the X-ray diffraction pattern of phosphor 5.
  • the phosphor of the present invention is represented by the following formula (2): a first phosphor containing an agent (agent 1) force S based on a compound represented by the following formula (1): And a second fluorescent material containing the active material (active agent 2).
  • the phosphor layer obtained using the phosphor has high intensity even after the irradiation time of an excitation source such as vacuum ultraviolet rays has elapsed. Is preferably used.
  • M ′′ and M 12 above independently represent one or more elements selected from the group consisting of C a, S r and B a, M 21 and 22 independently represent Mg and / or Zn, 31 and M 32 independently represent Si and Z or Ge, and m is a value in the range of 2.5 to 3.5, and n is in the range of 0.5 to 1.5. P is a value in the range of 0.5 to 1.5, and q is a value in the range of 0.5 to 1.5.
  • the base compound of the fluorescent material contains an activator, it emits light when it is excited by an excitation source. More specifically, the basis for fluorescent materials ⁇ ! A part of the element that constitutes ⁇ is gm with the element that becomes the agent, so that it becomes a fluorescent substance that emits light when irradiated with an excitation source. Examples of elements that can act as active agents include Eu, Ce, Pr, Nd, Sm, Tb, Dy, Er, Tm, Yb, Bi, and Mn.
  • the first fluorescent material preferably contains at least Eu, and Eu preferably has a high proportion of divalent Eu ions.
  • Agent 1 contains Eu in addition to Al, Sc, Y, La, Gd, Ce, Pr, Nd, Pm, Sm, Tb, Dy, Ho, Er, Tm, Yb, Lu, Bi
  • the emission becomes higher: fc.
  • the activator 2 in the second fluorescent material is at least likely to contain Eu, and it is more preferable that Eu has a high proportion of divalent Eu ions.
  • the active agent 1 contains Eu, and also includes Al, Sc, Y, La, Gd, Ce, Pr, Nd, Pm, Sm, Gd, Tb, Dy, Ho, Er, Tm Inclusion of one or more elements selected from the group consisting of, Yb, Lu, Bi, Au, Ag, Cu, and! Vln may increase the emission.
  • the first fluorescent substance which is a parent for increasing the emission luminance of the phosphor, is represented by the following formula (11).
  • a is a value in the range of 0 to less than 3
  • b is a value in the range of 0 to less than 3
  • c is a value in the range of greater than 0 and less than 0.2
  • a + b + c is a value in the range of more than 0 and less than 3.
  • a is a value in the range of 1.9 or more and 2.6 or less
  • b is 0.3 or more and 1.1.
  • a value in the following range is preferred.
  • c is preferably in the range of 0.001 to 0.03.
  • the second phosphor is preferably represented by the following formula (21).
  • d is a value in the range of 0.05 or more and less than 1
  • e is a value in the range of more than 0 and less than 0.2
  • force d + e is in the range of more than 0.05 and less than 1.
  • d is a value in the range of 0.4 or more and 0.6 or less in order to increase the emission of the phosphor layer after the illumination time of the excitation source has been reduced. preferable.
  • e is a value in the range of 0.001 to 0.03.
  • the constituent elements M u , M 21 , M 31 , and M ⁇ M 32 are each represented by a monovalent ⁇ element and It may be replaced with trivalent elements.
  • monovalent and trivalent ⁇ elements include Li, Na, K, Rb, Fe, In, La, Lu, Bi, and Sb. By such substitution, the degree of emission of the phosphor increases.
  • a part of Mg is removed from Zn, W and Mo in a range not inhibiting the effect of the present invention. You can replace it with one or more elements selected from the group. This uninhibited range is usually 10 mol% or less of Mg.
  • the phosphor may further contain at least one element selected from the group consisting of F, Cl, Br and I. The content of these elements is 1 ppm or more and 200,000 ppm or less, preferably 1 ppm or more and 1 OOO ppm or less, based on the total weight of the phosphor.
  • the weight ratio of the first fluorescent substance and the second fluorescent substance to the first fluorescent substance: the second fluorescent substance is 50:50 to 5:95. It is preferably contained so as to be, more preferably 40:60 to: 10: 90, and even more preferably 35:65 to 85:15. By containing in this way, the effect of this invention can be improved more.
  • the average particle size of one of the first fluorescent material and the second fluorescent material is less than 5 times the average particle diameter of the other fluorescent material.
  • the average particle diameter is a value measured by a scanning electron micrograph, and can be obtained by arbitrarily extracting 50 particles from the primary particles shown in the photograph and measuring each particle diameter. The average value.
  • the phosphor of the present invention can be produced, for example, by mixing a first fluorescent material and a second fluorescent material. As a method of mixing, a method using a stirrer, a method using a ball mill, a method using a three-roll mill, or the like, which is usually used in industry, is used. . At this time, the combination of dry and wet kongo is also possible.
  • a fluorescent substance other than the first fluorescent substance and the second fluorescent substance may be mixed within a range that does not inhibit the effect of the present invention.
  • the phosphor obtained after mixing may be heat-treated at a temperature of 300 ° C. to 100 ° C. for 10 minutes to 10 hours in an air atmosphere or a reducing atmosphere. .
  • the first fluorescent material can be manufactured by taking good care of the fact that it becomes the first fluorescent material.
  • the second fluorescent material can be produced by forming a mixture of S into a second fluorescent material. That is, first, second Each fluorescent substance can be produced by measuring a mixture containing male elements corresponding to each of the fluorescent substances and mixing them so as to achieve a predetermined loss.
  • the fluorescent substance is represented by the formula (B a a ⁇ S r Q5 C a L5 E u a J Mg Si 2 0 8 3 , Sr C0 3 , MgO, S i 0 2 , Eu 2 0 3 raw materials, the molar ratio of Ba: Sr: Ca: Mg: Si: Eu is 0.995: 0.5: 1. It can be produced by weighing the mixture so that it becomes 5: 1: 2: 0.005 and mixing them together.
  • a preferred second fluorescent substance, ⁇ the fluorescent material is represented by the formula Ca S r ai Eu aa8 Mg S i 2 ⁇ 6, CaCO 3, S r C0 3 , MgO, S i 0 2, Eu 2 ⁇ 3 of the raw materials
  • Ca: S r: Mg: S i: molar ratio of Eu is 0.892: 0. 1: 1: 2 were weighed in so that Do and 0.008, them Manufacture can be performed by mixing and mixing.
  • Examples of chemicals containing the above-mentioned ⁇ M element include, for example, Ca, Sr, Ba, Mg, Zn, Si, Ge, Eu, Al, Sc, Y, La, Gd, Ce, Pr, Nd , Pm, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Bi, Au, Ag, Cu and: Mn compounds, power using oxides, or hydroxides , Anthrax, niobium, iron, rogenide, shu, etc. at high temperatures such as Z or oxides that can be oxidized to form oxides.
  • a ball mill for example, a ball mill, a V-type mixer, a stirrer and the like, which are usually used in industry, can be used. At this time, either dry 5 ⁇ or wet 5 ⁇ .
  • a predetermined yarn is obtained by the crystallization method! You can get ⁇ Mized ⁇ !
  • the above metallized ⁇ ) mixture is, for example, in the range of 900 ° C to 1500 ° C.
  • Fluorescent material can be obtained by comforting for 5 to 100 hours. ⁇ and hydroxides, carbonates, nitrates, halides, oxalates, etc. at high temperatures After using Z or a compound that can be oxidized to form an oxide ⁇ in the range of 400 ° C or more and 1200 ° C or less, after making it an oxide or removing crystal water, fit yourself You can also go «.
  • the atmosphere in which «is performed may be an inert gas atmosphere, an oxidizing atmosphere, or a reducing atmosphere. You can also stone «after;
  • a range of 1100 ° C. or higher and 1250 ° C. or lower is preferable among the range of the first fluorescent material represented by the above formula (11).
  • a temperature range of 1 150 ° C or higher and 1190 ° C or lower is more preferable.
  • the second fluorescent material is represented by the above formula (21): ⁇ , and preferably within the range of one's own range, 1100 ° C or more and 1200. ⁇ G range below C. A temperature range of 1 150 ° C or higher and 1180 ° C or lower is more preferable.
  • As the atmosphere at the time for example, inert gas atmosphere such as nitrogen, argon, etc .; oxidizing atmosphere such as air, ,, ⁇ nitrogen, ⁇ argon, etc .; 0.1 to 10 # 3 ⁇ 4% of hydrogen
  • a reducing atmosphere such as water-containing nitrogen or nitrogen containing 0 # 1 force, 10 # 3 ⁇ 4% of water and argon is preferred. If you are in a strong and reducing atmosphere, you can add an appropriate amount of carbon to the s compound mixture.
  • the flux for example, L i F, Na F, KF, L i C l, NaC l, KC 1, L i 2 C_ ⁇ 3, Na 2 CO 3, K 2 C0 3, NaHC_ ⁇ 3, NH 4 C 1, NH 4 I, MgF 2 ⁇ C a F 2 ⁇ S r F 2 ⁇ BaF 2 , MgC l 2 , CaCl 2 , S rC 1 2 , BaC l 2 , Mg I 2 , Ca I 2 , S Examples include r 1 2 and B a 1 2 .
  • the fluorescent material obtained by the above can be pulverized, for example, using Bono Remino Jet Mino, or » You can also do «more than once. Further, the surface of the fluorescent material particles may be coated with a non-containing material containing Si, A1, Ti, or the like. Phosphor pace
  • the phosphor paste of the present invention contains ffjf's own phosphor and an organic substance as ⁇ ⁇ minutes, and examples of the organic substance include cat IJ, noda.
  • the phosphor paste can be used in the same way as the phosphor paste used in the manufacture of conventional light-emitting elements, and organic substances in the phosphor paste can be removed by volatilization, combustion, etc. And a phosphor paste capable of obtaining a phosphor layer substantially composed of the phosphor.
  • the phosphor paste can be produced, for example, by a method as disclosed in Japanese Patent Application Laid-Open No. 10-2555661, and for example, a phosphor, a binder, and a translation U are mixed with a ball mill. It can be obtained by mixing and mixing ⁇ : Rhino.
  • Binders include cellulosic resins (such as ethinololose, methinololose, nitroserose, acetino Mnorellose, senorelose propionate, hydroxypropinonorellose, butinololose, benzenololose, deformed cellulose, etc.), acrylic resins (aqua Reno, Methacrylolic acid, Methyl acrylate, Methino metholeate, Ethyl acrylate, Etheno metholeate, Propyl acrylate, Propyl methacrylate, Isopropino acrylate, Isopropino methacrylate, n-Butino acrylate, n — Butinole methacrylate, tert-butyl methacrylate, tert-butyl methacrylate, 2-hydroxyethinoreacrylate, 2-hydroxyethinoremethacrylate, 2— Droxypropinoleacrylate, 2-
  • IJ includes high-boiling monohydric alcoholic alcohols; alcoholic alcohols such as dionotriol typified by ethylene daricomonodevserin; compounds obtained by etherification and Z or esterification of alcohol (ethylene glycol monoalkyl) Ether, ethylene glycolenorequinoleateolate, ethyleneglycolanolenolequinoleatenoreate, jetylene glycol monoalkyl etherate, jetylene glycol dialkyl ether, propylene glycol monoalkyl Nore ether, propylene glycol dialkyl ether, propylene glycol nolequinol acetate) and the like.
  • alcoholic alcohols such as dionotriol typified by ethylene daricomonodevserin
  • compounds obtained by etherification and Z or esterification of alcohol ethylene glycol monoalkyl
  • ethylene glycolenorequinoleateolate ethyleneglycolanolenolequinoleatenoreate
  • the phosphor layer is obtained.
  • s3 ⁇ 4 include glass, resin and the like, and may be flexible, and the shape may be a plate or m *.
  • examples of the coating method include a screen printing method and an ink jet method.
  • the reason is usually 3 0 0 ° C to 6 0 0 ° C.
  • after applying to wisteria, before starting the process from room temperature to 300. You can also outline at C.
  • a plasma display panel which is a vacuum ultraviolet light emitting device
  • a method for producing a plasma display panel for example, a method of ⁇ P as disclosed in Japanese Patent Application Laid-Open No. 10-195 4 28 can be used.
  • a phosphor paste is applied to the inner surface of the back sickle on the surface of the striped ridges and the barrier ribs, which are partitioned by a cocoon, and the partition wall by a method such as screen printing.
  • Each phosphor layer is obtained in the range of 0 0 to 60 0.
  • ⁇ Sfficient plasma such as Xe and Ne by enclosing a rare gas and forming a gap between them. Can be manufactured.
  • a fine red emission display which is an electroluminescent device is cited and will be described.
  • a method for manufacturing a fine red emission display for example, a publicly known method disclosed in Japanese Patent Laid-Open No. 2 0 02-1 3 8 2 79 can be used.
  • each phosphor composed of green phosphor, red phosphor, and blue phosphor is dispersed in, for example, polybulu alcohole water stagnation night and the phosphor paste Prepare.
  • the phosphor paste is applied onto glass and then processed to obtain a phosphor layer to obtain a face plate.
  • the field plate and the rear plate having the electron-emitting device and the face plate are relied through a support frame, and the gap is sealed while being evacuated. Can be manufactured.
  • a white LED will be described as a light emitting element, and its manufacturing method will be described.
  • a white LED manufactured as disclosed in Japanese Patent Application Laid-Open Nos. 5-1552609 and 7-99345 can be used as a white LED.
  • a light-emitting element a high-negative lamp, which is an ultraviolet light-emitting element, will be explained with reference to its production method, citing the fluorescent run force with high consumption per unit area of the lamp tube wall.
  • a phosphor paste is prepared by dispersing each phosphor composed of a color phosphor and blue phosphor # * in an aqueous solution of polyethylene oxide, for example. After applying to the inner wall of the tube and observing, it is processed in the range of 300 to 600 to obtain a phosphor layer. After attaching the filament to this, through a normal process such as exhaust, encapsulate noble gas such as Ar, Kr, and Ne of iSffi and mercury, and attach a base to form a gap. A light lamp can be manufactured.
  • the present invention will be described in more detail using examples.
  • the phosphor paste was prepared by the following method. Weigh out 33 parts by weight of phosphor powder, 7 parts by weight of cellulose, Sulrose strength, 60 parts by weight of a mixture of diethylene glycol mono-n-butyl ether and diethylene glycol mono-n-butyl ether acetate, The mixture was thoroughly mixed to obtain 100 parts by weight of the phosphor paste.
  • the phosphor layer was obtained as follows. Apply selfish phosphor paste on glass, 10
  • a phosphor layer having a thickness of about 20 ⁇ was obtained by treating at 500 ° C. for 30 minutes in a large atmosphere.
  • the influence of irradiation of the excitation source was investigated as follows.
  • an excimer 172 nm lamp Ushi ring, H0016 type
  • was used to emit light from the phosphor layer and the emission level at that time was measured using a 3 ⁇ 4l ⁇ meter (manufactured by Topcon, SR-3). And measured.
  • the crystal structure of the phosphor was analyzed by a powder X-ray diffraction method using Cu K string as a radiation source, using a test company Rigaku X-ray diffraction measurement apparatus RI NT 2500 TTR type.
  • Comparative Example 1 Calcium Carbonate Materials Co., Ltd., CaCOa), Strontium Carbonate (Wakoitotsu Kogyo Co., Ltd., SrCO ⁇ , Europium Oxide (manufactured by Xin Xie Yugaku Co., Ltd., Eu 2 03), Magnesium Carbonate (Kyowa Chemical ( Co., Ltd., MgCO ⁇ , silicon oxide S i 0 2 (manufactured by Nippon Aerosil Co., Ltd., S i 0 2 ) Each raw material is made of C a C0 3 : S r CO 3 : Eu 2 0 3 : Mg CO 3 : S i 0 2 of molar ratio of 0.494:
  • Barium carbonate (Japan Chemical Society column: boats 99% or more) and strontium carbonate ( ⁇ ⁇ ⁇ ⁇ »3 ⁇ 4 ⁇ ⁇ : ⁇ ⁇ 99% or more); and magnesium oxide (Kyowa Chemical Co., Ltd.): Boats 99% or more) and carbon dioxide (Nihon Gaguchi Jill 3 ⁇ 4 ⁇ Confirmation: S 99. 9 9%) and Yuu Ouguchi Pium (Shinshu Gakue «3 ⁇ 4 Meeting Ne Ring: Boat 99.
  • FIG. 2 shows an X-ray diffraction pattern of phosphor 2.
  • Phosphor 2 The phosphor layer 2 was obtained in the same manner as in Comparative Example 1, and the degree of W was measured by irradiating it with vacuum ultraviolet rays. As a result, the degree of compatibility was 102. The results are shown in Table 1.
  • Examples 1-6 Phosphor 1 and phosphor 2 are used, respectively, with a predetermined amount of T, respectively, and ethanol is used, wet mixed and dried to obtain phosphors 3 to 8 (Examples:! To 6 )
  • the weight ratio of phosphor 1 to phosphor 2 in phosphors 3 to 8 is 90:10 (phosphor 3), 80:20 (phosphor 4), 75:25 (phosphor 5), 65:35 (fluorescence) The body 6), 50:50 (phosphor 7) and 25:75 (phosphor 8).
  • phosphor layers 3 to 8 were obtained in the same manner as in Comparative Example 1, and irradiated with vacuum ultraviolet rays. The radiance was measured, and the obtained phases are shown in Table 1. It was.
  • Fig. 3 shows the X-ray diffraction pattern of phosphor 5.
  • the phosphor of the present invention comprises vacuum ultraviolet rays. It is preferably used for a braided light emitting device, and particularly preferably used for a plasma display panel.
  • the phosphor of the present invention can also be applied to ultraviolet light-emitting devices such as backlights for liquid crystal displays, electroluminescent devices such as field emission displays, and light-emitting devices such as white LEDs.

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Luminescent Compositions (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

La présente invention concerne un phosphore permettant d'obtenir une couche de phosphore présentant une luminance élevée après un temps d'irradiation d'extrémités de sources d'excitation. D'une manière spécifique, l'invention concerne un phosphore contenant un premier matériau fluorescent, qui est obtenu par l'ajout d'un activateur (activateur 1) dans le matériau de base constitué d'un composé de formule (1): mM11O•nM21O•2M31O2, et un second matériau fluorescent, qui est obtenu par l'ajout d'un activateur (activateur 2) dans le matériau de base d'un composé de formule (2): pM12O•qM22O•2M32O2. Dans les formules (1) et (2), M11 et M12 représentent indépendamment au moins un élément choisi parmi le groupe constituée de Ca, Sr et Ba; M21 and M22 indépendamment au moins un élément choisi parmi le groupe constitué de Si et Ge; m est compris entre 2,5 et 3,5; n est compris entre 0,5 et 1,5; p est compris entre 0,5 et 1,5; et q est compris entre 0,5 et 1,5.
PCT/JP2007/065675 2006-08-08 2007-08-03 Phosphore, et pâte à base de phosphore et dispositif électroluminescent WO2008018575A1 (fr)

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JP2006-215470 2006-08-08

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100846483B1 (ko) * 2007-03-30 2008-07-17 삼성전기주식회사 Ｂａ-Ｓｒ-Ｃａ 함유 화합물 및 이를 포함한 백색 발광소자
JP2008297505A (ja) * 2007-06-04 2008-12-11 Mitsui Mining & Smelting Co Ltd 電子線励起用白色蛍光体および白色発光素子乃至装置
JP5775742B2 (ja) * 2011-05-18 2015-09-09 宇部マテリアルズ株式会社 青色発光蛍光体の製造方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002332481A (ja) * 2000-09-29 2002-11-22 Sumitomo Chem Co Ltd 真空紫外線励起発光素子用の蛍光体
JP2003132803A (ja) * 2001-10-30 2003-05-09 Hitachi Ltd 発光装置及びこれを用いた表示装置
JP2003206480A (ja) * 2001-10-23 2003-07-22 Matsushita Electric Ind Co Ltd プラズマディスプレイ装置
JP2006169526A (ja) * 2004-12-10 2006-06-29 Lumileds Lighting Us Llc 燐光変換発光装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002332481A (ja) * 2000-09-29 2002-11-22 Sumitomo Chem Co Ltd 真空紫外線励起発光素子用の蛍光体
JP2003206480A (ja) * 2001-10-23 2003-07-22 Matsushita Electric Ind Co Ltd プラズマディスプレイ装置
JP2003132803A (ja) * 2001-10-30 2003-05-09 Hitachi Ltd 発光装置及びこれを用いた表示装置
JP2006169526A (ja) * 2004-12-10 2006-06-29 Lumileds Lighting Us Llc 燐光変換発光装置

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