KR100258716B1 - Green color fluorescent - Google Patents
Green color fluorescent Download PDFInfo
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- KR100258716B1 KR100258716B1 KR1019930002961A KR930002961A KR100258716B1 KR 100258716 B1 KR100258716 B1 KR 100258716B1 KR 1019930002961 A KR1019930002961 A KR 1019930002961A KR 930002961 A KR930002961 A KR 930002961A KR 100258716 B1 KR100258716 B1 KR 100258716B1
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- green luminescent
- green
- luminescent phosphor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
- H01J29/18—Luminescent screens
- H01J29/20—Luminescent screens characterised by the luminescent material
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Abstract
Description
도면은 본 발명의 녹색 발광 형광체 (a)와 종래의 녹색발광 형광체 (b)의 발광강도를 나타내는 그래프이다.Figure is a graph showing the emission intensity of the green light emitting phosphor (a) of the present invention and the conventional green light emitting phosphor (b).
본 발명은 녹색 발광 형광체에 관한 것으로서, 더욱 자세하게는 발광휘도가 우수한 녹색 발광 형광체에 관한 기술이다.The present invention relates to a green light emitting phosphor, and more particularly, to a green light emitting phosphor having excellent light emission luminance.
일반적으로 투사관용 또는 고해상도용 형광체는, 첫째 열화 및 전류 전압에 강한 열화특성이 우수하여야 하며, 둘째 발광휘도가 높고 선명한 색상 순도를 갖추고 있어야 하며, 세째 온도특성과 수명이 길어야만 한다는 조건을 모두 갖추어야만 우수한 형광체로 인정된다.In general, the projection tube or high-resolution phosphor should be excellent in deterioration and strong resistance to current voltage, second, high luminous intensity and vivid color purity, and third in both temperature characteristics and long life. Only excellent phosphors are recognized.
종래의 투사관 텔레비젼 (Projecton Television) 및 고해상도용 텔레비젼에는 조성식이 Y2O2S:Tb인 녹색 발광 형광체가 사용되어 왔으며, 이들 형광체는 내열화성이 강하고, 온도특성 및 내구성이 우수하였다. 그러나 이들 종래의 형광체는 대부분 발광휘도가 낮다는 문제점이 있다.In conventional Projecton Television and high-definition television, green light emitting phosphor having a composition formula of Y 2 O 2 S: Tb has been used, and these phosphors have strong thermal resistance, excellent temperature characteristics and durability. However, these conventional phosphors have a problem in that most of the light emission luminance is low.
본 발명은 상기한 바와 같은 종래 기술의 문제점을 해결하기 위하여 안출된 것으로서, 본 발명의 목적은 내열화성, 온도특성 및 내구성이 우수할 뿐만 아니라, 발광휘도가 높은 우수한 성능을 갖는 녹색 발광 형광체를 제공하기 위함이다.The present invention has been made to solve the problems of the prior art as described above, the object of the present invention is to provide a green light emitting phosphor having excellent performance of not only deterioration resistance, temperature characteristics and durability, but also high luminous luminance. To do this.
상기한 바와 같은 본 발명의 목적을 달성하기 위하여 본 발명은, Y2O2S:Tb, Cex, Pry로 이루어진 녹색 발광 형광체 조성물을 제공한다. 본 발명에 있어서, 상기한 x는 5.0×10-5≤x≤10×10-6이 바람직하고, 상기한 y는 5.0×10-5≤y≤10×10-6이 바람직하다.In order to achieve the object of the present invention as described above, the present invention provides a green light emitting phosphor composition consisting of Y 2 O 2 S: Tb, Ce x , Pr y . In the present invention, the above-described x is preferably 5.0 × 10 −5 ≦ x ≦ 10 × 10 −6 , and the above y is preferably 5.0 × 10 −5 ≦ y ≦ 10 × 10 −6 .
도면에 도시된 바와 같이 본 발명에 따라 세륨(Ce)과 프로세슘(Pr)을 더욱 포함하고 있는 녹색 발광 형광체(a)는 종래의 녹색 발광 형광체 (b)보다 월등히 발광휘도가 높음을 알 수 있다. 특히 주발광 피크인 540㎚에서의 강도가 월등히 높음을 알 수 있다.As shown in the figure, the green light emitting phosphor (a) further including cerium (Ce) and procesium (Pr) according to the present invention can be seen that the luminous intensity is significantly higher than the conventional green light emitting phosphor (b). . In particular, it can be seen that the intensity at 540 nm, which is the main emission peak, is significantly higher.
본 발명의 효과를 나타내는 본 발명의 바람직한 실시예와 비교예를 기재하면 다음과 같다. 그러나 하기한 실시예는 본 발명의 일 실시예일 뿐 발명이 하기한 실시예에 한정되는 것은 아니다.Referring to the preferred examples and comparative examples of the present invention showing the effects of the present invention are as follows. However, the following examples are only examples of the present invention and the invention is not limited to the following examples.
[실시예 1]Example 1
하기한 조성비를 갖는 형광체 조성물을 잘 혼합하여, 알루미나 도가니에 넣고 1250℃의 온도에서 2시간 소성을 실시하여 형광체를 제조하였다.The phosphor composition having the composition ratio described below was mixed well, placed in an alumina crucible and fired at a temperature of 1250 ° C. for 2 hours to prepare a phosphor.
Y2O3: 100gY 2 O 3 : 100g
Tb4O7: 10gTb 4 O 7 : 10g
KF : 5gKF: 5g
S : 40gS: 40g
Ce : 500ppmCe: 500ppm
Pr : 50ppmPr: 50ppm
[실시예 2]Example 2
하기한 조성비를 갖는 형광체 조성물을 사용한 점을 제외하고는 상기한 실시예 1과 동일한 방법으로 실시하여 형광체를 제조하였다.A phosphor was prepared in the same manner as in Example 1, except that the phosphor composition having the following composition ratio was used.
Y2O3: 100gY 2 O 3 : 100g
Tb4O7: 10gTb 4 O 7 : 10g
KF : 5gKF: 5g
S : 40gS: 40g
Ce : 300ppmCe: 300ppm
Pr : 50ppmPr: 50ppm
[실시예 3]Example 3
하기한 조성비를 갖는 형광체 조성물을 사용한 점을 제외하고는 상기한 실시예 1과 동일한 방법으로 실시하여 형광체를 제조하였다.A phosphor was prepared in the same manner as in Example 1, except that the phosphor composition having the following composition ratio was used.
Y2O3: 100gY 2 O 3 : 100g
Tb4O7: 10gTb 4 O 7 : 10g
KF : 5gKF: 5g
S : 40gS: 40g
Ce : 50ppmCe: 50ppm
Pr : 50ppmPr: 50ppm
[실시예 4]Example 4
하기한 조성비를 갖는 형광체 조성물을 사용한 점을 제외하고는 상기한 실시예 1과 동일한 방법으로 실시하여 형광체를 제조하였다.A phosphor was prepared in the same manner as in Example 1, except that the phosphor composition having the following composition ratio was used.
Y2O3: 100gY 2 O 3 : 100g
Tb4O7: 10gTb 4 O 7 : 10g
KF : 5gKF: 5g
S : 40gS: 40g
Ce : 10ppmCe: 10ppm
Pr : 50ppmPr: 50ppm
[실시예 5]Example 5
하기한 조성비를 갖는 형광체 조성물을 사용한 점을 제외하고는 상기한 실시예 1과 동일한 방법으로 실시하여 형광체를 제조하였다.A phosphor was prepared in the same manner as in Example 1, except that the phosphor composition having the following composition ratio was used.
Y2O3: 100gY 2 O 3 : 100g
Tb4O7: 10gTb 4 O 7 : 10g
KF : 5gKF: 5g
S : 40gS: 40g
Ce : 500ppmCe: 500ppm
Pr : 30ppmPr: 30ppm
[실시예 6]Example 6
하기한 조성비를 갖는 형광체 조성물을 사용한 점을 제외하고는 상기한 실시예 1과 동일한 방법으로 실시하여 형광체를 제조하였다.A phosphor was prepared in the same manner as in Example 1, except that the phosphor composition having the following composition ratio was used.
Y2O3: 100gY 2 O 3 : 100g
Tb4O7: 10gTb 4 O 7 : 10g
KF : 5gKF: 5g
S : 40gS: 40g
Ce : 300ppmCe: 300ppm
Pr : 30ppmPr: 30ppm
[실시예 7]Example 7
하기한 조성비를 갖는 형광체 조성물을 사용한 점을 제외하고는 상기한 실시예 1과 동일한 방법으로 실시하여 형광체를 제조하였다.A phosphor was prepared in the same manner as in Example 1, except that the phosphor composition having the following composition ratio was used.
Y2O3: 100gY 2 O 3 : 100g
Tb4O7: 10gTb 4 O 7 : 10g
KF : 5gKF: 5g
S : 40gS: 40g
Ce : 300ppmCe: 300ppm
Pr : 10ppmPr: 10ppm
[비교예][Comparative Example]
하기한 조성비를 갖는 형광체 조성물을 사용한 점을 제외하고는 상기한 실시예 1과 동일한 방법으로 실시하여 형광체를 제조하였다.A phosphor was prepared in the same manner as in Example 1, except that the phosphor composition having the following composition ratio was used.
Y2O3: 100gY 2 O 3 : 100g
Tb4O7: 10gTb 4 O 7 : 10g
KF : 5gKF: 5g
S : 40gS: 40g
Ce : 0ppmCe: 0ppm
Pr : 0ppmPr: 0ppm
상기한 실시예 1-7과 비교예에 따라 제조된 형광체의 발광특성을 발광 휘도, 색좌표로 나타내면 하기한 표 1과 같다. 이 때 측정은 PTE시스템을 사용하였다.The emission characteristics of the phosphors prepared according to Examples 1-7 and Comparative Examples described above are shown in Table 1 below. At this time, the measurement used a PTE system.
[표 1]TABLE 1
상기한 표 1로 부터 알 수 있는 바와 같이 본 발명에 따라 제조된 실시예의 형광체는 종래의 형광체인 비교예의 형광체보다 월등히 높은 발광휘도를 나타냄을 알 수 있다. 즉 종래의 녹색 발광 형광체에 세륨과 프로세슘을 더욱 첨가하여 제조한 본 발명의 녹색발광 형광체는 종래의 녹색발광형광체 보다 발광 휘도가 월등히 높은 형광체를 제조하는 기술이다.As can be seen from Table 1, the phosphor of the example prepared according to the present invention can be seen to exhibit a significantly higher luminous luminance than the phosphor of the comparative example of the conventional phosphor. That is, the green luminescent phosphor of the present invention prepared by further adding cerium and procesium to the conventional green luminescent phosphor is a technique for producing a phosphor having a much higher luminescence brightness than the conventional green luminescent phosphor.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019930002961A KR100258716B1 (en) | 1993-03-02 | 1993-03-02 | Green color fluorescent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019930002961A KR100258716B1 (en) | 1993-03-02 | 1993-03-02 | Green color fluorescent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR940022646A KR940022646A (en) | 1994-10-21 |
| KR100258716B1 true KR100258716B1 (en) | 2000-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019930002961A KR100258716B1 (en) | 1993-03-02 | 1993-03-02 | Green color fluorescent |
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| Country | Link |
|---|---|
| KR (1) | KR100258716B1 (en) |
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1993
- 1993-03-02 KR KR1019930002961A patent/KR100258716B1/en not_active IP Right Cessation
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| Publication number | Publication date |
|---|---|
| KR940022646A (en) | 1994-10-21 |
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