JPH0317182A - Light emitting element for color image display device - Google Patents
Light emitting element for color image display deviceInfo
- Publication number
- JPH0317182A JPH0317182A JP15189989A JP15189989A JPH0317182A JP H0317182 A JPH0317182 A JP H0317182A JP 15189989 A JP15189989 A JP 15189989A JP 15189989 A JP15189989 A JP 15189989A JP H0317182 A JPH0317182 A JP H0317182A
- Authority
- JP
- Japan
- Prior art keywords
- phosphor
- light emitting
- fluorescent substance
- emitting element
- display device
- 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.)
- Pending
Links
- 229910052688 Gadolinium Inorganic materials 0.000 claims abstract description 5
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 5
- 229910052727 yttrium Inorganic materials 0.000 claims abstract description 5
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 4
- 229910052746 lanthanum Inorganic materials 0.000 claims abstract description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 44
- 150000004645 aluminates Chemical class 0.000 abstract description 7
- 229910052684 Cerium Inorganic materials 0.000 abstract description 4
- 229910052771 Terbium Inorganic materials 0.000 abstract description 4
- -1 Tb4O7 Chemical compound 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract 7
- 239000000203 mixture Substances 0.000 abstract 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 238000001354 calcination Methods 0.000 abstract 1
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 abstract 1
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 abstract 1
- 239000011656 manganese carbonate Substances 0.000 abstract 1
- 235000006748 manganese carbonate Nutrition 0.000 abstract 1
- 229910000016 manganese(II) carbonate Inorganic materials 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 239000011369 resultant mixture Substances 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 230000003595 spectral effect Effects 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 150000002680 magnesium Chemical class 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- GZCRRIHWUXGPOV-UHFFFAOYSA-N terbium atom Chemical compound [Tb] GZCRRIHWUXGPOV-UHFFFAOYSA-N 0.000 description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- GCAAQROFKRZNKT-UHFFFAOYSA-N [Tb].[Ce] Chemical compound [Tb].[Ce] GCAAQROFKRZNKT-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 150000002910 rare earth metals Chemical class 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Luminescent Compositions (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、カラー映像表示装置用発光素子に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a light emitting element for a color image display device.
従来の技術
大型カラー映像表示装置に用いられる複数の絵素をもつ
発光素子には、発光部に赤色発光蛍光体，緑色発光蛍光
体，青色発光蛍光体が用いられている。そして緑色発光
蛍光体としては、特開昭６２−１８８１５９号公報に示
されているように、一般にセリウムおよびテレビウムで
付活されたアルミン酸塩蛍光体が使用されている。2. Description of the Related Art A light emitting element having a plurality of picture elements used in a large color image display device uses a red light emitting phosphor, a green light emitting phosphor, and a blue light emitting phosphor in a light emitting portion. As the green-emitting phosphor, an aluminate phosphor activated with cerium and terebrium is generally used, as disclosed in Japanese Patent Application Laid-open No. 188159/1983.
発明が解決しようとする課題
セリウムおよびテルビウムで付活されたアルミン酸塩蛍
光体は、三価のテルビウムの発光を生ずる。この発光の
分光分布は，５４３〜５４４ｎｍに鋭い主ピークを、約
４９０ｎｍと約５８０ｎｍに副ピークをもつので、色純
度が悪くやや黄色い。このためカラー映像表示装置用発
光素子において、かかる蛍光体を、赤色・緑色・青色発
光蛍光体からなる発光部の緑色発光蛍光体として使用し
た場合、第２図の斜線領域Ｐ５の範囲内の色度しかとる
ことができず、色再現性が十分でないという問題があっ
た。PROBLEM TO BE SOLVED BY THE INVENTION Cerium and terbium activated aluminate phosphors produce trivalent terbium emission. The spectral distribution of this emission has a sharp main peak at 543-544 nm and sub-peaks at about 490 nm and about 580 nm, so the color purity is poor and it is slightly yellow. Therefore, in a light emitting element for a color image display device, when such a phosphor is used as a green light emitting phosphor in a light emitting section consisting of red, green and blue light emitting phosphors, the color within the shaded area P5 in FIG. There was a problem that the color reproducibility was not sufficient because only a certain degree of color could be obtained.
本発明は、この問題点を解決するためになされたもので
、より広範囲の色度を選択して、色再現性の良いカラー
映像表示装置用発光素子を提供するものである。The present invention was made to solve this problem, and provides a light emitting element for a color image display device that selects a wider range of chromaticities and has good color reproducibility.
課題を解決するための手段
本発明のカラー映像表示装置用発光素子は、赤色発光蛍
光体と緑色発光蛍光体と青色発光蛍光体とからなる蛍光
体を発光部に用いたものであって、前記緑色発光蛍光体
が一般式
（Ｌｎ＋−ｘ−，Ｃ ｅｘＴｂｖ）（Ａ＋−ａＭｎａ）
ＡｅｂＯ （３ｂ＋ｓ）／２（ここでＬｎはＬａ．Ｙお
よびＧｄのうち少なくとも一種、ＡはＺｎおよびＭｇの
うち少なくとも一種を表わし、また０．０５＜ｘ≦１，
Ｏ≦ｙ＜０．７，Ｏ＜ａ＜１．６＜ｂ（２２）で表わさ
れるものである。Means for Solving the Problems A light-emitting element for a color image display device of the present invention uses a phosphor consisting of a red-emitting phosphor, a green-emitting phosphor, and a blue-emitting phosphor in its light-emitting portion, The green-emitting phosphor has the general formula (Ln+-x-, C exTbv) (A+-aMna)
AebO (3b+s)/2 (where Ln represents at least one of La.Y and Gd, A represents at least one of Zn and Mg, and 0.05<x≦1,
O≦y<0.7, O<a<1.6<b (22).
作用
本発明のカラー映像表示装置用発光素子の発光部に用い
られる緑色発光蛍光体の分光分布は、第１図に示される
ように、マンガン比を増すことによって５１８ｎｍの発
光が増強し色純度が向上するため、より広範囲の色度が
選択でき、良好な色再現性を得ることができる。Effect As shown in FIG. 1, the spectral distribution of the green-emitting phosphor used in the light-emitting part of the light-emitting element for a color image display device of the present invention is such that by increasing the manganese ratio, the emission at 518 nm is enhanced and the color purity is improved. As a result, a wider range of chromaticities can be selected and good color reproducibility can be obtained.
実施例
発明者らは、セリウムおよびテルビウム付活アルミン酸
塩蛍光体に共付活剤として二価マンガンを用いることに
よって、表示用として適切な発光をもつ実用的な蛍光体
を得、これを用いたすぐれたカラー映像表示装置用発光
素子を実現した。Example The inventors used divalent manganese as a co-activator in a cerium- and terbium-activated aluminate phosphor to obtain a practical phosphor that emits light suitable for display purposes. We have achieved an excellent light-emitting element for color image display devices.
以下実施例をあげて本発明について詳細に説明する。The present invention will be described in detail below with reference to Examples.
実施例Ｉ
Ｃｅｎｔ １０３．２６ｇＴｂ＋０７
７４．７７ｇＭｇＯ
３９．２９ｇＭｎＣ○ｓ ２．８７
ｇＡｅ２０３ ６ １ ２．○ ｇ上記
の成分材料をボールミルで良く混合した後、１ ５００
℃で３時間還元雰囲気中で焼成し、セリウム・テルビウ
ム・マンガン付活アルミン酸マグネシウム蛍光体を得た
。この蛍光体の分光測定を行った結果、第１図曲線ａに
示された分光分布を得た。ここでは、カラー映像表示用
発光素子として第３図および第４図に示すような構成の
ものを用いた。すなわち，同図に示すように、この表示
用素子は透光性の前面板２を有する直方体状の気密容器
本体１とこの気密容器本体の底面に一体化された電極フ
ィラメント収納部４とから気密容器を形成し、気密容器
本体１内に格子状の隔壁５を設けることによって６つの
放電空間６ａ，６ｂ６ｃ．７ａ，７ｂ，７ｃを形威し、
前記気密容器の底面中央部に各放電空間と電極フィラメ
ント収納部４の空間部とを連通させるための穴３を独立
して設け、２本の内部導入１１０間に支持され、電極フ
ィラメント収納部４に設けられた電極フィラメント９を
、この電極フィラメントの軸が前記放電空間の軸と直交
する方向に配置している。また、各放電空間の穴８から
遠い方の端部に電極１１ａ，ｌｌｂ．ｌｌｃ．１２ａ，
１２ｂ，１２ｃを設けて、電極フィラメント９と各電極
との間で複数の放電路を形成し、かつ気密容器本体１の
各放電路となる部分、すなわち放電空間６ａ，７ａを形
戒しているセラミック壁面には前記セリウム・テルビウ
ム・マンガン付活アルミン酸マグネシウム蛍光体を、放
電空間６ｂ，７ｂを形成しているセラミック壁面には赤
色発光希土類蛍光体Ｙ２ ０３ ： Ｅｕ’十を、放
電空間６ｃ．７ｃを形成しているセラミック壁面には青
色発光希土類蛍光体 （ＳｒＣａＢａ）ｓ （ＰＯ
４ ）３ （１！ ：Ｅｕ”をそれぞれ塗布した
ものである。Example I Cent 103.26gTb+07
74.77gMgO
39.29gMnC○s 2.87
gAe203 6 1 2. ○ g After mixing the above ingredients well in a ball mill, 1 500 g
C. for 3 hours in a reducing atmosphere to obtain a cerium-terbium-manganese activated magnesium aluminate phosphor. As a result of spectroscopic measurement of this phosphor, a spectral distribution shown in curve a in FIG. 1 was obtained. Here, a light emitting element for color image display having a structure as shown in FIGS. 3 and 4 was used. That is, as shown in the figure, this display element is airtightly connected to a rectangular parallelepiped-shaped airtight container body 1 having a translucent front plate 2 and an electrode filament storage portion 4 integrated on the bottom surface of this airtight container body. By forming a container and providing a lattice-shaped partition wall 5 inside the airtight container body 1, six discharge spaces 6a, 6b6c. 7a, 7b, 7c,
Holes 3 for communicating each discharge space with the space of the electrode filament storage section 4 are independently provided in the center of the bottom surface of the airtight container, and the electrode filament storage section 4 is supported between two internal introductions 110. An electrode filament 9 is disposed in a direction in which the axis of the electrode filament is orthogonal to the axis of the discharge space. Further, electrodes 11a, llb. llc. 12a,
12b and 12c are provided to form a plurality of discharge paths between the electrode filament 9 and each electrode, and to define the portions of the airtight container body 1 that become the respective discharge paths, that is, the discharge spaces 6a and 7a. The ceramic wall surface was coated with the cerium-terbium-manganese activated magnesium aluminate phosphor, the ceramic wall surface forming the discharge spaces 6b and 7b was coated with the red light-emitting rare earth phosphor Y203:Eu', and the discharge space 6c. The ceramic wall forming 7c is coated with a blue-emitting rare earth phosphor (SrCaBa)s (PO
4) 3 (1!: Eu”).
このような発光素子の電極フィラメント（陰極）９に電
流を通じ、各電極く陽極）ｌｌａ，ｌｌｂ，１１ｃ．１
２ａ．１２ｂ，１２ｃに放電開始に必要な電圧を選択し
て印加するとともに、各放電路に流れる電流を変化させ
ると、第２図のＰ１に示す色度範囲を選択できるカラー
映像表示装置用発光素子を得ることができた。これは、
比較例として、緑色領域に従来のセリウム・テルビウム
付活アルミン酸マグネシウム蛍光体を塗布したもの〈第
２図Ｐ５ ）と比べ広範囲の色度を選択できるため、色
再現性を大幅に改善できるものである。A current is passed through the electrode filament (cathode) 9 of such a light emitting element, and each electrode (anode) lla, llb, 11c . 1
2a. By selectively applying the voltage necessary for starting discharge to 12b and 12c and changing the current flowing through each discharge path, a light-emitting element for a color image display device that can select the chromaticity range shown at P1 in FIG. 2 can be created. I was able to get it. this is,
As a comparative example, compared to a conventional cerium-terbium-activated magnesium aluminate phosphor coated in the green area (see Figure 2, page 5), a wider range of chromaticities can be selected, and color reproducibility can be greatly improved. be.
実施例２
Ｃｅ○２ ］．０３．２６ｇＴ
ｂ４０７ ７４．７７ｇＭｇＯ
３８．２９ｇＭｎＣＯ３
５．７５ｇＡｅ ２０３
６１２．Ｏ ｇ上記の戒分
材料を実施例１と同様の方法で混合，焼威して得た蛍光
体の分光分布を第１図曲線ｂに示す。この蛍光体を通常
の方法で第３図に示す構成を有ｔるカラー映像表示装置
用発光素子の緑色領域に塗布した。なお赤色領域には、
Ｙ２ ０３Ｅｕ’十を、青色領域には、（ＳｒＣａＢａ
）ｓ（ＰＯ４ ）３ Ｃｅ ： Ｅｕ２＋蛍光体を同様
に塗布した。その結果、第２図のＰ２に示す色度範囲を
選択できるカラー映像表示用発光素子を得ることができ
た。これは、実施例１と同様に比較例と比べて広範囲の
色度を選択できるため、色再現性を大幅に改善できるも
のである。Example 2 Ce○2 ]. 03.26gT
b407 74.77gMgO
38.29gMnCO3
5.75gAe 203
612. The spectral distribution of the phosphor obtained by mixing and burning the above-mentioned ingredients in the same manner as in Example 1 is shown in curve b in Figure 1. This phosphor was applied to the green region of a light emitting element for a color image display device having the structure shown in FIG. 3 by a conventional method. In addition, in the red area,
In the blue region, (SrCaBa
)s(PO4)3Ce:Eu2+ phosphor was applied in the same manner. As a result, it was possible to obtain a light emitting element for color video display in which the chromaticity range shown in P2 of FIG. 2 could be selected. This allows a wider range of chromaticity to be selected as compared to the comparative example, similar to Example 1, and thus the color reproducibility can be significantly improved.
実施例３
ＣｅＯｚ １０３．２６ｇＴｔｚＯ７
７４．７７ｇＭｇＯ
３７．２８ｇＭｎＣＯ３
８．６２ｇｉ２０３
６１２．０ ｇ上記の戒分材料を実施例１と同様の
方法で混合，焼威して得た蛍光体の分光分布を第１図曲
４１１ｃに示す。この蛍光体を通常の方法で第３図に示
す構成を有するカラー映像表示装置用発光素子の緑色領
域に塗布した。なお赤色領域には、Ｙ２ Ｃｈ ：Ｅ
ｕ３＋蛍光体を、青色領域には、ＢａＭｇ２Ａｆ！＋ｓ
０２７：Ｅｕ２＋蛍光体を同様に塗布した。その結果、
第２図のＰ３に示す色度範囲を選択できるカラー映像表
示装置用発光素子を得ることができた。これは、実施例
１と同様に比較例と比べて広範囲の色度を選択できるた
め、色再現性を大幅に改善できるものである。Example 3 CeOz 103.26gTtzO7
74.77gMgO
37.28gMnCO3
8.62gi203
612.0 g The spectral distribution of the phosphor obtained by mixing and burning the above-mentioned materials in the same manner as in Example 1 is shown in Figure 1, track 411c. This phosphor was applied to the green region of a light emitting element for a color image display device having the structure shown in FIG. 3 by a conventional method. In addition, in the red area, Y2 Ch:E
u3+ phosphor and BaMg2Af! in the blue region. +s
027: Eu2+ phosphor was applied in the same manner. the result,
It was possible to obtain a light emitting element for a color video display device in which the chromaticity range shown in P3 of FIG. 2 can be selected. This allows a wider range of chromaticity to be selected as compared to the comparative example, similar to Example 1, and thus the color reproducibility can be significantly improved.
実施例４
Ｃ ｅ ０２ １０３．２６ｇＴｂ４０
７ ７ ４．７ ７ ｇＭｇＯ
３６．２７ｇＭｎＣＯｚ １
１．４９ｇＡｅ ２０３ ６１２．Ｏ
ｇ上記の成分材料を実施例１と同様の方法で混合，
焼成して得た蛍光体の分光分布を第１図曲線ｄに示す。Example 4 C e 02 103.26gTb40
7 7 4.7 7 gMgO
36.27gMnCOz 1
1.49gAe 203 612. O
g Mix the above component materials in the same manner as in Example 1,
The spectral distribution of the phosphor obtained by firing is shown in curve d in FIG.
この蛍光体を通常の方法でカラー映像表示装置用発光素
子の緑色領域に塗布した。なお赤色領域｛こは、ＹＰＶ
Ｏ４ ：Ｅｕ’＋蛍光体を、青色領域には、ＢａＭｇ
２Ａｅ＋ｅ○２７：Ｅｕ２＋蛍光体を同様に塗布した。This phosphor was applied to the green region of a light emitting element for a color image display device using a conventional method. Note that the red area {this is YPV
O4: Eu'+ phosphor, BaMg in the blue region
2Ae+e○27: Eu2+ phosphor was applied in the same manner.
その桔果、第２図Ｐ４に示す色度範囲を選択できるカラ
ー映像表示装置用発光素子を得ることができた。これは
，実施例１と同様に比較例と比べて広範囲の色度を選択
できるため、色再現性を大幅に改善できるものである。As a result, it was possible to obtain a light emitting element for a color image display device in which the chromaticity range shown in FIG. 2 P4 can be selected. Similar to Example 1, this allows a wider range of chromaticities to be selected than in the comparative example, and thus the color reproducibility can be significantly improved.
なお、セリウム●テルビウムの一部とイットリウム．ラ
ンタン，ガドリニウムのうち少なくとも一種、またマグ
ネシウムと亜鉛を置き換えても同様の結果が得られるも
のである。In addition, cerium, some terbium, and yttrium. Similar results can be obtained by replacing at least one of lanthanum and gadolinium, or by replacing magnesium and zinc.
発明の効果
以上説明したように、本発明は、赤色発光蛍光体と緑色
発光蛍光体と青色発光蛍光体からなる蛍光体を発光部に
用いたノＪラー映像表示装置用発光素子の緑色発光体に
一般式（ Ｌ ｎｌ−ｘ−ｙｃ ｅｘＴ ｂｙ）（Ａ＋
−ａＭｎｓ）Ａｔ！ ｂ○＋３ｂ＋ｓ）／２（ここでＬ
ｎはＬａ．ＹおよびＧｄのうち少なくとも一種、ＡはＺ
ｎおよびＭｇのうち少なくとも一種を表わし、また０．
０５＜ｘ≦１．０≦ｙ＜０．７，Ｏ＜ａ＜１．６＜ｂ＜
２２）で表わされる蛍光体を用いることにより、従来よ
り広範囲の色度を選択できるため、色再現性が大幅に改
善されたカラー映像表示装置用発光素子を提供すること
ができるものである。また、第１図からわかるように杓
４９０ｎｍと約５８０ｎｍの副ピークが弱まるため、色
補正用に従来使用されているカラーフィルターより透過
性の良いカラーフィルターの使用が可能となり、輝度の
低下を防ぐこともできるものである。Effects of the Invention As explained above, the present invention provides a green light-emitting element for a light-emitting element for a solar video display device using a phosphor consisting of a red-emitting phosphor, a green-emitting phosphor, and a blue-emitting phosphor in the light-emitting portion. The general formula (L nl-x-yc exT by) (A+
-aMns) At! b○+3b+s)/2(here L
n is La. At least one of Y and Gd, A is Z
represents at least one of n and Mg, and 0.
05<x≦1.0≦y<0.7, O<a<1.6<b<
By using the phosphor represented by 22), it is possible to select a wider range of chromaticity than before, so it is possible to provide a light emitting element for a color image display device with significantly improved color reproducibility. In addition, as shown in Figure 1, the sub-peaks at 490 nm and 580 nm are weakened, making it possible to use color filters with better transparency than the color filters conventionally used for color correction, thereby preventing a decrease in brightness. It is also possible.
第１図は本発明の実施例で示した蛍光体の分光分布図、
第２図は本発明の実施例で示した蛍光体をカラー映像表
示装置用発光素子に用いた場合の色度範囲を示す図、第
３図は本発明の実施例で示した発光素子の分解斜視図、
第４図は同正面図である。
１・・・・・・気密容器本体，２・・・・・・前面板、
３・・・・・・穴、４・・・・・・電極フィラメント収
納部、５・・・・・・隔壁、６ａ．６ ｂ ， ６ ｃ
， ７ ａ ， ７ ｂ ， ７ ｃ −−−−−−
放電空間、８・・・・・・穴、９・・・・・・電極フィ
ラメント、１０・・・・・・内部導入線、ｌｌａ，ｌｌ
ｂ．ｌｌｃ，１２ａ，１２ｂ，１２ｃ・・・・・・電極
。FIG. 1 is a spectral distribution diagram of the phosphor shown in the example of the present invention,
Figure 2 is a diagram showing the chromaticity range when the phosphor shown in the example of the present invention is used in a light emitting element for a color image display device, and Figure 3 is a diagram showing the decomposition of the light emitting element shown in the example of the present invention. Perspective view,
FIG. 4 is a front view of the same. 1...Airtight container body, 2...Front plate,
3... Hole, 4... Electrode filament housing section, 5... Partition wall, 6a. 6 b, 6 c
, 7 a , 7 b , 7 c --------
Discharge space, 8... Hole, 9... Electrode filament, 10... Internal lead-in wire, lla, ll
b. llc, 12a, 12b, 12c... Electrode.
Claims (1)
からなる蛍光体を発光部に用いたカラー映像表示装置用
発光素子であって、前記緑色発光蛍光体が、一般式 （Ｌｎ＿１＿−＿ｘ＿−＿ｙＣｅ＿ｘＴｂ＿ｙ）（Ａ
＿１＿−＿ａＭｎ＿ａ）Ａｌ＿ｂＯ＿（＿３＿ｂ＿＋＿
５＿）＿／＿２（ここでＬｎはＬａ，ＹおよびＧｄのう
ち少なくとも一種、ＡはＺｎおよびＭｇのうち少なくと
も一種を表わし、また０．０５＜ｘ≦１，０≦ｙ＜０．
７，０＜ａ＜１，６＜ｂ＜２２）で表わされることを特
徴とするカラー映像表示装置用発光素子。[Scope of Claims] A light-emitting element for a color image display device using a phosphor composed of a red-emitting phosphor, a green-emitting phosphor, and a blue-emitting phosphor in a light-emitting portion, wherein the green-emitting phosphor is Formula (Ln_1_−_x_−_yCe_xTb_y)(A
_1_-_aMn_a)Al_bO_(_3_b_+_
5_)_/_2 (here, Ln represents at least one of La, Y, and Gd, A represents at least one of Zn and Mg, and 0.05<x≦1, 0≦y<0.
7,0<a<1,6<b<22) A light emitting element for a color image display device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15189989A JPH0317182A (en) | 1989-06-14 | 1989-06-14 | Light emitting element for color image display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15189989A JPH0317182A (en) | 1989-06-14 | 1989-06-14 | Light emitting element for color image display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0317182A true JPH0317182A (en) | 1991-01-25 |
Family
ID=15528625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15189989A Pending JPH0317182A (en) | 1989-06-14 | 1989-06-14 | Light emitting element for color image display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0317182A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002056812A (en) * | 2000-08-10 | 2002-02-22 | Samsung Electronics Co Ltd | Fluorescent lamp and liquid crystal display device using the same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5686983A (en) * | 1979-12-18 | 1981-07-15 | Nichia Denshi Kagaku Kk | Fluorescent material |
-
1989
- 1989-06-14 JP JP15189989A patent/JPH0317182A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5686983A (en) * | 1979-12-18 | 1981-07-15 | Nichia Denshi Kagaku Kk | Fluorescent material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002056812A (en) * | 2000-08-10 | 2002-02-22 | Samsung Electronics Co Ltd | Fluorescent lamp and liquid crystal display device using the same |
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