CN1177017C - White luminous fluorescent substance - Google Patents
White luminous fluorescent substanceInfo
- Publication number
- CN1177017C CN1177017C CNB021198497A CN02119849A CN1177017C CN 1177017 C CN1177017 C CN 1177017C CN B021198497 A CNB021198497 A CN B021198497A CN 02119849 A CN02119849 A CN 02119849A CN 1177017 C CN1177017 C CN 1177017C
- Authority
- CN
- China
- Prior art keywords
- fluor
- phosphor
- white
- zno
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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Classifications
-
- 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
- C09K11/54—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing zinc or cadmium
-
- 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
- C09K11/0883—Arsenides; Nitrides; Phosphides
-
- 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
- C09K11/62—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing gallium, indium or thallium
-
- 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
- C09K11/62—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing gallium, indium or thallium
- C09K11/621—Chalcogenides
- C09K11/623—Chalcogenides with zinc or cadmium
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
Abstract
To obtain a white-light-emitting phosphor having a low cadmium content, a high white purity, and a high luminance. A mixture prepared by mixing a ZnO:Zn phosphor with a ZnGa2O4 as a phosphor that supplements a cyan component in a mixing ratio in the range of 0.2:9.8 to 9.8:0.2 is mixed with a yellow phosphor ZnO0.4 Cd0.6 S:Ag in a mixing ratio in the range of 0.5:9.5 to 5:5. When the resultant mixture is allowed to fluoresce after being applied to form a fluorescent tube, it can give a chromaticity region [X=0.32 plusmn 0.07, Y=0.36 plusmn 0.07, as shown by circled numerals (2), (3), (4), (6), (7), (8), (10), (11), (14), and (15)] practical and desirable for the white light emission of the phosphor.
Description
Technical field
The present invention relates to white luminous fluorescent substance.
Background technology
As white luminous fluorescent substance, use ZnS:Zn system or ZnGa now
2O
4Be that blue-light-emitting fluorescent material and ZnCdS:Ag are yellow luminescent phosphor, part practicability wherein.Wherein, by the blueness of combination ZnS system and the yellow of ZnCdS:Ag system, when each colour content is mixed with 50%, obtain the illuminant colour of white.When used whole fluor are sulfide in fluorescent display tube, the filament as electron source are had a negative impact, and can not guarantee reliability.In addition, at combination ZnGa
2O
4During blueness and the ZnCdS:Ag system of system yellow, the luminous intensity of blue composition dies down, the briliancy reduction.At the ZnGa of combination as no cadmium (cadmium free) fluor
2O
4When being blue-light-emitting fluorescent material and ZnMgO yellow luminescent phosphor, the briliancy of each fluor is all lower, makes that whole briliancy is also low.
Reliability when using from the environment aspect and fluorescent display tube the object of the present invention is to provide low, white purity and the high white luminous fluorescent substance of briliancy of cadmium or sulphur (ィ オ ゥ) content.
Summary of the invention
According to a first aspect of the invention, it provides a kind of white luminous fluorescent substance, wherein adds the ZnO:Zn fluor in the white luminous fluorescent substance of blue-light-emitting fluorescent material and yellow luminescent phosphor composition.
According to a second aspect of the invention, it provides a kind of white luminous fluorescent substance, it is characterized in that it being by being selected from ZnGa
2O
4The blue-light-emitting fluorescent material of fluor and GaN fluor, as the Zn of yellow luminescent phosphor
xCd
1-xS:Ag fluor and ZnO:Zn fluor are formed, x=0.2-0.5 wherein, described blue-light-emitting fluorescent material and ZnO:Zn fluor are with weight ratio 0.2: 9.8-9.8: 0.2 constitutes mixing phosphor, and this mixing phosphor and Zn as yellow luminescent phosphor
xCd
1-xThe weight ratio of S:Ag fluor is 0.5: 9.5-5: 5.
According to a third aspect of the present invention, it provides a kind of method for preparing white luminous fluorescent substance, and it may further comprise the steps: by 0.2: 9.8-9.8: 0.2 proportional range mixing is selected from ZnGa
2O
4Blue-light-emitting fluorescent material of one of fluor and GaN fluor and ZnO:Zn fluor obtain mixing phosphor; Then according to 0.5: 9.5-5: 5 scope is mixed above-mentioned mixing phosphor and as the Zn of yellow luminescent phosphor
xCd
1-xS:Ag fluor, wherein x=0.2-0.5.
In above-mentioned white luminous fluorescent substance according to the present invention, it is characterized in that luminous colourity is X=0.32 ± 0.07, Y=0.36 ± 0.07.
Description of drawings
Fig. 1 is the blending ratio and the real chart that is contained in the colourity when luminous in the fluorescent display tube of ingredient fluorescence body in each fluor (1)-(17) of expression embodiment 1.
Fig. 2 is the figure that shows the colourity of each fluor (1)-(17) shown in the chart of embodiment 1 on chromaticity diagram.
Fig. 3 is the blending ratio and the real chart that is contained in the colourity when luminous in the fluorescent display tube of ingredient fluorescence body in each fluor (1)-(17) of expression embodiment 3.
Fig. 4 is the figure that shows the colourity of each fluor (1)-(17) shown in the chart of embodiment 3 on chromaticity diagram.
Embodiment
The ZnGa that in the ZnO:Zn of high efficiency light-emitting fluor, mixes blue-light-emitting in the proper ratio
2O
4Fluor makes the luminous of ZnO:Zn fluor move to blue direction, and making as Yellow-to-orange in the relation of this moment chroma point and complementary color is the Zn of fluor
xCd
1-xS:Ag (X=0.2-0.5) fluor, with aforementioned ZnO:Zn fluor and ZnGa
2O
4The mixture of fluor mixes in the proper ratio.Thus, can obtain with the turn white fluor of coloured light of high-level efficiency.In embodiment shown below,, can obtain sending the fluor of the white light of desired purity by suitably adjusting the blending ratio of above-mentioned each fluor.Also use the GaN fluor as blue-light-emitting fluorescent material.
0.1: 9.9-9.9: in 0.1 the proportional range, mix the ZnO:Zn fluor and the ZnGa of the fluor of blue composition by way of compensation
2O
4Fluor forms mixing phosphor or the 1st fluor.0: 10-7: in 3 the scope, mix the 1st fluor and with the complementary color of the 1st fluor relation in yellow be fluor Zn
0.4Cd
0.6(general formula is Zn to the S:Ag fluor
xCd
1-xS:Ag (X=0.2-0.5) wherein selects X=0.4), form the 2nd fluor.
Use the 2nd fluor, make paste by the carrier (vehicle) that constitutes by organic solvent.Use this paste, on the anode electrode of the fluorescent display tube that constitutes by graphite (black smoke) electrode, be coated with, form fluorescent screen by silk screen print method.This substrate of sintering, after removing organic solvent, filament and grid are installed on substrate, then on substrate, sealing the box container portions that covers filament and grid, the exhaust gas inside of the portion that seals (package) that is made of substrate and container portions is sealed, make fluorescent display tube thus.
Drive fluorescent display tube, make light-emitting phosphor, measure its colourity, the result is as shown in table 1.This result's chart is expressed as chromaticity diagram on the curve of Fig. 2.The white luminous practical and good chromaticity range of fluor for example is X=0.32 ± 0.07 in fluorescent display tube, Y=0.36 ± 0.07.In test portion numbering (1)-(17) of present embodiment, test portion (2), (3), (4), (6), (7), (8), (10), (11), (14) and (15) are within above-mentioned desirable white chromaticity range.In Fig. 2, these test portions within desirable white chromaticity range add the numbering expression with open circles, and the numbering of the test portion in desirable white chromaticity range (1), (5), (9), (12), (13), (16) and (17) do not add the white numbering with filled circles and represent in the present embodiment.
The ratio of mixture of each composition of fluor of the hope scope that realizes required colourity below is described.
The ZnO:Zn fluor and the ZnGa of the fluor of blue composition by way of compensation
2O
4The ratio of mixture of fluor is 0.2: 9.8-9.8: in 0.2 the scope.This mixing phosphor, with yellow be fluor Zn
0.4Cd
0.6The ratio of mixture of S:Ag is 0.5: 9.5-5: in 5 the scope.
Above result shows that the amount of yellow fluorophor is lacked than the calculated value based on theory, but still can obtain necessary white.This considers that the part that ZnO:Zn is luminous excites yellow fluorophor Zn
0.4Cd
0.6S:Ag carries out luminous.
0.3: 9.7-5.0: mix ZnO:Zn and ZnGa in 5.0 the ratio of mixture scope
2O
4, according to 0.5: 9.5-5: 5 scope is mixed above-mentioned mixing phosphor and Zn
0.22Cd
0.78S:Ag makes white luminous fluorescent substance.Its result also wishes in the scope in the white colourity shown in embodiment 1.
Similarly, replace ZnGa with GaN luminous under the low voltage
2O
4, use white luminous fluorescent substance in the same manner with embodiment 1.Measure its colourity, the result is as shown in table 3.This result's chart is expressed as chromaticity diagram on the curve of Fig. 4.In test portion numbering (1)-(17) of present embodiment, test portion (2), (3), (4), (6), (7), (10), (11) and (14) are within above-mentioned desirable white chromaticity range.In Fig. 4, these test portions within desirable white chromaticity range add the numbering expression with open circles, and the numbering of the test portion in desirable white chromaticity range (1), (5), (8), (9), (12), (13), (15), (16) and (17) do not add the white numbering with filled circles and represent in the present embodiment.
Realize the ratio of mixture of each composition of fluor of the hope scope of required colourity, roughly the same with embodiment 1.
In the present invention, at the ZnGa of blue-light-emitting
2O
4With the ZnO:Zn fluor of specific mixed high efficiency light-emitting, the luminous of ZnO:Zn fluor moved to blue direction among fluor and the GaN, this mixing phosphor be the Zn of fluor as Yellow-to-orange
xCd
1-xS:Ag (X=0.2-0.5) fluor can make the fluor that sends white light with high-level efficiency thus with specific mixed.For example, with above-mentioned specific mixed, can realize as the necessary white chromaticity range of fluor that is used for fluorescent display tube.
Compare with existing white luminous fluorescent substance, the usage quantity of cadmium reduces.
Claims (3)
1, a kind of white luminous fluorescent substance is characterized in that it being by being selected from ZnGa
2O
4The blue-light-emitting fluorescent material of fluor and GaN fluor, as the Zn of yellow luminescent phosphor
xCd
1-xS: Ag fluor and ZnO: the Zn fluor is formed, x=0.2-0.5 wherein, described blue-light-emitting fluorescent material and ZnO: the Zn fluor is with weight ratio 0.2: 9.8-9.8: 0.2 constitutes mixing phosphor, and this mixing phosphor and Zn as yellow luminescent phosphor
xCd
1-xS: the weight ratio of Ag fluor is 0.5: 9.5-5: 5.
2, white luminous fluorescent substance as claimed in claim 1, wherein luminous colourity are X=0.32 ± 0.07, Y=0.36 ± 0.07.
3, a kind of method for preparing white luminous fluorescent substance, it may further comprise the steps:
By 0.2: 9.8-9.8: 0.2 proportional range mixing is selected from ZnGa
2O
4The blue-light-emitting fluorescent material and the ZnO of one of fluor and GaN fluor: the Zn fluor obtains mixing phosphor, then
According to 0.5: 9.5-5: 5 scope is mixed above-mentioned mixing phosphor and as the Zn of yellow luminescent phosphor
xCd
1-xS: Ag fluor, wherein x=0.2-0.5.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP146703/2001 | 2001-05-16 | ||
| JP2001146703A JP2002338960A (en) | 2001-05-16 | 2001-05-16 | White-light-emitting phosphor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1385491A CN1385491A (en) | 2002-12-18 |
| CN1177017C true CN1177017C (en) | 2004-11-24 |
Family
ID=18992305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021198497A Expired - Fee Related CN1177017C (en) | 2001-05-16 | 2002-05-15 | White luminous fluorescent substance |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2002338960A (en) |
| KR (1) | KR100481394B1 (en) |
| CN (1) | CN1177017C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100825481B1 (en) * | 2006-11-28 | 2008-04-25 | 한국과학기술원 | White light-emitting planar light source using a carbon nanotube (cnt) field emitter, anode, and display divice |
| JP2017149981A (en) * | 2017-05-01 | 2017-08-31 | メトロ電気株式会社 | Ink for light-emitting element |
| CN110364596B (en) * | 2019-07-30 | 2021-09-03 | 广东省半导体产业技术研究院 | Complementary color LED device and preparation method thereof |
| KR20210088405A (en) | 2020-01-06 | 2021-07-14 | 김용래 | Connection bracket of profile element |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01304179A (en) * | 1988-06-01 | 1989-12-07 | Futaba Corp | Phosphor for low-velocity electron beam and fluorescent display tube made by using this phosphor |
| KR940005192A (en) * | 1992-08-26 | 1994-03-16 | 에프.제이.스미트 | Circuit arrangement for incandescent lamp operation |
| KR100315224B1 (en) * | 1999-05-11 | 2001-11-26 | 김순택 | Low-voltage white phosphor |
| JP2001107041A (en) * | 1999-10-04 | 2001-04-17 | Futaba Corp | Phosphor and fluorescent display tube |
| JP2001107040A (en) * | 1999-10-04 | 2001-04-17 | Futaba Corp | Phosphor and fluorescent display tube |
-
2001
- 2001-05-16 JP JP2001146703A patent/JP2002338960A/en active Pending
-
2002
- 2002-05-06 KR KR10-2002-0024759A patent/KR100481394B1/en not_active IP Right Cessation
- 2002-05-15 CN CNB021198497A patent/CN1177017C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| KR100481394B1 (en) | 2005-04-08 |
| KR20020087849A (en) | 2002-11-23 |
| JP2002338960A (en) | 2002-11-27 |
| CN1385491A (en) | 2002-12-18 |
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