KR100189421B1 - Method of making dag solution used in the panel - Google Patents
Method of making dag solution used in the panel Download PDFInfo
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- KR100189421B1 KR100189421B1 KR1019950045472A KR19950045472A KR100189421B1 KR 100189421 B1 KR100189421 B1 KR 100189421B1 KR 1019950045472 A KR1019950045472 A KR 1019950045472A KR 19950045472 A KR19950045472 A KR 19950045472A KR 100189421 B1 KR100189421 B1 KR 100189421B1
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- phosphor
- panel
- large amount
- film
- forming
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
- H01J9/22—Applying luminescent coatings
- H01J9/227—Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
- Luminescent Compositions (AREA)
Abstract
본 발명은 패널의 대그액 조성방법에 관한 것으로, 형광체막을 형성하기 위하여 패널에 도포되는 대그액에 있어서, 상기 대그액의 조성에 따른 10%의 고형분과, 1.08g/㎤ 밀도와, 20cps점도와, 0.7u.m입도로 이루어진 조성으로서, 형광체막의 정확한 고정으로 형광체 발광의 향상과, 상기 형광체 스트라이프 상호간격 사이에 생기는 거칠기를 매끄럽게 하여 형광체 발광에 따른 선명한 화상 및 색순도의 품위를 향상시킬 수 있는 것이다.The present invention relates to a method for forming a large amount of liquid in a panel, comprising: 10% solids, 1.08 g / cm3 density, and 20 cps viscosity in a large amount of liquid applied to a panel to form a phosphor film. , 0.7 μm in particle size, improves phosphor emission by correcting the phosphor film and smoothes roughness between the phosphor stripes, thereby improving the image quality and color purity according to phosphor emission.
Description
제1도는 종래의 패널의 대그액 조성방법에 따른 형광체막의 거칠기를 나타낸 평면도1 is a plan view showing the roughness of the phosphor film according to the preparation method of the large solution of the conventional panel
제2도는 본 발명에 따른 패널의 대그액 조성방법에 따른 형광체막의 거칠기를 나타낸 평면도이다.2 is a plan view showing the roughness of the phosphor film according to the method of forming a large liquid solution of the panel according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
10 : 패널 12, 20 : 형광체막10 panel 12, 20 phosphor film
본 발명은 패널의 대그액 조성방법에 관한 것으로 보다 상세하게는 형광체의 접착력을 증진시키기 위해 대그액의 조성을 설정하고, 아울러 패널에 적색, 녹색, 청색 형광체의 발광에 따른 설명한 화상 및 색순도의 품위를 향상 시킬 수 있도록 한 패널의 대그액 조성방법에 관한 것이다.The present invention relates to a method for forming a large liquid solution of a panel, and more particularly, to set the composition of a large liquid to enhance adhesion of phosphors, and also to describe the quality of the described image and color purity according to light emission of red, green, and blue phosphors on the panel. It relates to a method of forming a large amount of a panel so that it can be improved.
일반적으로, 브라운관은 여러가지 부품으로 이루어져 있고, 그 중에서 브라운관의 전면에는 패널이 갖추어져 있다. 이 패널은 여러공정을 거쳐 완성되는데, 브라운관의 화면부의 3색형광막을 형성시키기 위한 스크린 공정이 있다. 이 스크린 공정은 블랙코팅(Black Coating : 이하 BC라 약칭함) 공정과 스크린 코팅(Screen Coating : 이하 SC라 약칭함)공정으로 구분할 수 있다.In general, the CRT consists of various components, among which the front panel of the CRT is provided with a panel. This panel is completed through several processes, and there is a screen process for forming a tricolor fluorescent film of the screen portion of the CRT. This screen process can be divided into a black coating process (abbreviated as BC) and a screen coating process (abbreviated as SC).
상기 BC공정은 패널 내주면에 레지스트액을 도포하고, 이 내주면의 유효면을 노광처리한 다음 레지스트액을 현상하며, 이후 대그를 도포한 다음, 선명한 화상을 얻게하기 위해 무반사 흑색도료를 패널의 내면에 도포하는 공정이다.In the BC process, a resist liquid is applied to the inner circumferential surface of the panel, the effective surface of the inner circumferential surface is exposed, and then the resist liquid is developed. Then, a dag is applied, and then an antireflective black paint is applied to the inner surface of the panel to obtain a clear image. It is a process of coating.
또한 SC공정은 BC공정에서 형성된 블랙 스트라이프 사이의 홀에 칼라를 나타내는 3색의 형광체를 순차적으로 도포하고, 그 위에 알루미늄에 의한 형광체 입자의 손상방지 및 알루미늄의 경면성 향상을 위한 유기수지막을 도포하는 공정인 것이다.In the SC process, phosphors of three colors representing colors are sequentially applied to the holes between the black stripes formed in the BC process, and an organic resin film is applied thereon to prevent damage of the phosphor particles by aluminum and to improve the specular property of aluminum. That's fair.
이러한, 상기 형광체막을 형성시키는 종래의 방법은 먼저, 패널을 세척하는 공정과, 형광체의 접착력을 증진시키기 위해 포리비닐알콜(Poly Vinyl Alcohol : 이하 P.V.C로 약칭함) 및 각종 첨가제 예컨데, 첨가제는 형광체 입자의 굳어짐 및 혼색을 방지하기 위한 분산제, 분산성 향상 및 도포시 얼룩을 방지하기 위한 분산제, 기포방지 및 도포성을 향상시키는 소포제, 형광체 스트라이프를 형성시키기 위한 감광제를 사용하여 코팅하고 건조시키는 공정과, 패널에 적색, 녹색, 청색 형광체 슬러리를 도포하는 공정과, 상기 패널을 고회전시켜 여분의 액을 회수하고 형광체막 두께를 조절한 후, 건조시키는 공정과, 패널에 섀도우마스클 장착하고 소정위치의 형광체를 노광시키는 공정과, 노광되지 않는 부분의 형광체를 현상액을 이용하여 세척 현상시키는 공정으로 이루어진다. 그런데 상기와 같은 형광체 형성방법으로 블랙 스트라이프 사이에 3색의 형광체를 순차적으로 도포하여 형광체막을 형성시, 형광체를 접착, 고정시키는 대그액의 점도 및 밀도가 시간이 지나감에 따라 저하됨으로써, 첨부된 예시도면 제1도에 나타낸 바와 같이 상기 형광체막(12)이 떨어져나가거나 혹은 형광체막(12)의 거칠기가 거칠어져 이에따른 형광체의 발광이 저하되고, 상기 형광체 스트라이프 상호간격 사이에 생기는 산란전자에 의한 선명한 화상을 얻지 못하는 문제점이 있었다.Such a conventional method of forming the phosphor film, first, the process of washing the panel, polyvinyl alcohol (hereinafter abbreviated as PVC) and various additives to enhance the adhesion of the phosphor, for example, the additive is a phosphor particle Coating and drying using a dispersant to prevent stiffening and mixing, a dispersant to improve dispersibility and staining during application, a defoamer to improve anti-foaming and applicability, and a photosensitive agent to form a phosphor stripe; Applying red, green, and blue phosphor slurry to the panel; recovering excess liquid by rotating the panel at high rotation; adjusting the thickness of the phosphor film; and drying the shadow; mounting a shadow mask on the panel; Exposing the phosphor and washing the developed phosphor by using a developing solution It consists of. However, when the phosphor film is formed by sequentially applying the phosphors of three colors between the black stripes by the above-described phosphor formation method, the viscosity and density of the solution for adhering and fixing the phosphors decrease with time, thereby being attached. As shown in FIG. 1, the phosphor film 12 is detached or the roughness of the phosphor film 12 is roughened, so that light emission of the phosphor is lowered and scattered electrons are generated between the phosphor stripes. There was a problem that can not get a clear image.
본 발명은 상기와 같은 문제점을 해소하기 위해 안출된 것으로, 형광체의 접착력을 증진시키기 위해 대그액의 밀도 및 점도를 정확하게 설정하여 도포시키고, 아울러 패널에 적색, 녹색, 청색 형광체 도포에 따른 선명한 화상 및 색순도의 품위를 향상시킬 수 있도록 한 패널의 대그액 조성방법을 제공하는데 그 목적이 있다.The present invention has been made to solve the above problems, and to accurately apply the density and viscosity of the large solution in order to enhance the adhesion of the phosphor, and also the clear image of the red, green, blue phosphor applied to the panel and It is an object of the present invention to provide a method for forming a large amount of a liquid in a panel so as to improve the color purity.
상기와 목적을 달성하기 위한 본 발명은 형광체막을 형성하기 위하여 패널에 도포되는 대그액에 있어서, 상기 대그액의 조성에 따른 10%의 고형분과, 1.08g/㎤ 밀도와, 20cps점도와, 0.7u.m입도로 이루어진 조성으로서, 형광체막의 정확한 고정으로 형광체 발광의 향상과, 상기 형광체 스트라이프 상호간격 사이에 생기는 거칠기를 매끄럽게 하여 형광체 발광에 따른 선명한 화상 및 색순도의 품위를 향상시킬 수 있는 점에 특징이 있다.The present invention for achieving the above and the object is a large amount of solids, 1.08g / cm 3 density, 20cps viscosity, 0.7um in 10g solids according to the composition of the large amount of the liquid applied to the panel to form a phosphor film The composition is composed of particle size, which is characterized in that the phosphor film can be improved by precise fixing of the phosphor film, and the roughness between the phosphor stripes can be smoothed to improve the image quality and color purity according to the phosphor light emission.
이하 본 발명은 첨부된 예시도면 제2도에 나타낸 바와 같이 상기 패널(10)의 내주면에 형광체막(20)을 형성시키는고자, 먼저 대그액의 조성에 따른 고형분을 10%로 하고, 밀도를 1.08g/㎤ 하며, 점도를 20cps로 한다.Hereinafter, the present invention intends to form the phosphor film 20 on the inner circumferential surface of the panel 10 as shown in FIG. 2 of the accompanying drawings. First, the solid content according to the composition of the large liquid is 10%, and the density is 1.08. g / cm 3 and the viscosity is 20 cps.
그리고, 입도를 0.7u.m로 하여 이루어진 대그액과 각종 첨가제 예컨데, 첨가제는 형광체 입자의 굳어짐 및 혼색을 방지하기 위한 분산제, 분산성 향상 및 도포시 얼룩을 방지하기 위한 분산제, 기포방지 및 도포성을 향상시키는 소포제, 형광체 스트라이프를 형성시키기 위한 감광제를 사용하여 코팅시킨후, 상기 패널에 적색, 녹색, 청색 형광체를 도포하게 되는 것이다.In addition, the additive and the various additives having a particle size of 0.7 μm, for example, a dispersant to prevent the hardening and mixing of the phosphor particles, a dispersant to improve dispersibility and staining during application, bubble prevention, and coating property to be improved. After coating with a defoamer to form a phosphor, a photosensitive agent for forming a phosphor stripe, red, green, blue phosphor is applied to the panel.
여기서, 본 발명은 상기와 같이 조성된 대그액을 형성하여 블랙 스트라이프 사이에 3색의 형광체를 순차적으로 도포하여 형광체막(20)을 형성시, 형광체를 접착 고정시키는 대그액의 접착력과 밀도 및 점도가 향상되어 상기 형광체막의 정확한 고정으로 형광체 발광의 향상과, 상기 형광체 스트라이프 상호간격 사이에 생기는 거칠기를 매끄럽게 하여 형광체 발광에 따른 선명한 화상 및 색순도의 품위를 향상시킬 수 있는 효과가 있다.Herein, in the present invention, the adhesive force, density, and viscosity of the large amount solution for forming and fixing the fluorescent substance 20 when the fluorescent substance 20 is formed by sequentially applying the three-color phosphors between the black stripes by forming the large amount solution formed as described above. In this case, the phosphor film is improved and the roughness between the phosphor stripes is smoothed by accurate fixing of the phosphor film, thereby improving the image quality and color purity of the phosphor light.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950045472A KR100189421B1 (en) | 1995-11-30 | 1995-11-30 | Method of making dag solution used in the panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950045472A KR100189421B1 (en) | 1995-11-30 | 1995-11-30 | Method of making dag solution used in the panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR970030008A KR970030008A (en) | 1997-06-26 |
| KR100189421B1 true KR100189421B1 (en) | 1999-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019950045472A KR100189421B1 (en) | 1995-11-30 | 1995-11-30 | Method of making dag solution used in the panel |
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| Country | Link |
|---|---|
| KR (1) | KR100189421B1 (en) |
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1995
- 1995-11-30 KR KR1019950045472A patent/KR100189421B1/en not_active IP Right Cessation
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| Publication number | Publication date |
|---|---|
| KR970030008A (en) | 1997-06-26 |
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