KR930006886B1 - Method of making a fluorescent screen of color crt - Google Patents
Method of making a fluorescent screen of color crt Download PDFInfo
- Publication number
- KR930006886B1 KR930006886B1 KR1019910014735A KR910014735A KR930006886B1 KR 930006886 B1 KR930006886 B1 KR 930006886B1 KR 1019910014735 A KR1019910014735 A KR 1019910014735A KR 910014735 A KR910014735 A KR 910014735A KR 930006886 B1 KR930006886 B1 KR 930006886B1
- Authority
- KR
- South Korea
- Prior art keywords
- panel
- fluorescent film
- light
- shadow mask
- plotter
- Prior art date
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Classifications
-
- 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
Abstract
Description
제1도는 본 발명에 따른 형광막 형성방법을 예시한 개략도.1 is a schematic diagram illustrating a fluorescent film forming method according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 노광대 2 : 광원1: exposure table 2: light source
3 : 광센서 4 : 중앙연산기3: optical sensor 4: central operation unit
5 : 플로터 P,P' : 패널5: Plotter P, P ': Panel
S : 섀도우마스크S: Shadow Mask
본 발명은 칼라음극선관의 형광막 형성방법에 관한 것이다.The present invention relates to a method of forming a fluorescent film of a color cathode ray tube.
종래에는 칼라음극선관의 패널내면에 형광막을 형성하기 위하여 수산화나트륨(NaOH) 및 불산(HF)수용액, 순수(Pure Water)등으로 패널내면에 부착된 불순물(유기물)을 제거한 후 이를 건조시킨 다음, 패널내면에 노광에 의해 점착성을 갖는 감광성 물질(Photo resist)을 도포한다. 이어서 노광장치를 통하여 스트라이프상으로 감광물질을 노광시킨 다음 노광처리된 패널내면에 흑연을 도포한 후 에칭액(etching solution)을 도포하여 노광된 부분의 감광성 물질을 분해시키고 현상시킴으로써 스트라이프형의 블랙매트릭스를 형성한다. 그리고 R,G,B 형광체를 블랙매트릭스사 형성된 패널내면에 순차적으로 도포, 노광, 현상, 건조시켜 R,G,B 형광체층을 형성시킨 다음 그위에 알루미늄막을 형성하였다.Conventionally, in order to form a fluorescent film on the inner surface of the color cathode ray tube, impurities (organic matter) attached to the inner surface of the panel are removed by drying with sodium hydroxide (NaOH), hydrofluoric acid (HF) solution, pure water, and the like. A photoresist having a tacky property is coated on the inner surface of the panel by exposure. Subsequently, the photosensitive material is exposed through the exposure apparatus in the form of a stripe, and then graphite is applied to the exposed inner surface of the panel, and then an etching solution is applied to decompose and develop the photosensitive material in the exposed portion. Form. The R, G, and B phosphors were sequentially applied, exposed, developed, and dried on the inner surface of the panel formed by the black matrix to form R, G, B phosphor layers, and then aluminum films were formed thereon.
그러나 이와 같은 종래 칼라음극선관의 형광막 형성방법은 형광막을 형성하기 위하여 여러공정을 거쳐야하므로 그 작업이 번거롭고 제반설비 및 작업인력, 작업수가 많이 소모되는 문제점이 있었다.However, the conventional method for forming a fluorescent film of a color cathode ray tube requires a number of steps to form a fluorescent film, which is cumbersome and requires many facilities, labor, and labor.
본 발명은 상술한 바와 같은 문제점을 감안하여 창출된 것으로서, 플로터로 패널내면에 블랙매트릭스 및 R,G,B 형광체층을 그려서 형성하도록 하여 기존의 여러 공정을 단순화시킬 수 있도록 한 칼라음극선관의 형광막 형성방법을 제공함에 그 목적이 있다.The present invention was created in view of the above-described problems, and the fluorescence of the color cathode ray tube was made by drawing a black matrix and R, G, B phosphor layers on the inner surface of the panel with a plotter to simplify various processes. It is an object to provide a film forming method.
상기의 목적을 달성하기 위하여 본 발명은, 내면에 형광막이 형성되지 않은 패널에 섀도우마스크를 결합하고 이를 노광대에 재치시킨 다음, 노광대의 광원을 인라인형 전자총의 각 전자총 간격에 해당하는 거리만큼 단계적으로 이동시키면서 상기 섀도우마스크에 광을 조사시켜 상기 섀도우마스크의 빔통과정을 통과하여 패널내면에 랜딩되는 광을 단계적으로 광센서로 스캐닝하고, 상기 광센서에 의해 스캐닝된 광정보를 중앙연산기에 입력시켜 광정보를 종합한 다음, 중앙연산기가 종합된 광정보에 의해 플로터를 구동시켜 패널내면에 형광막을 그려서 형성하도록 한 점에 그 특징이 있다.In order to achieve the above object, the present invention, by combining the shadow mask on a panel that does not have a fluorescent film formed on the inner surface and placing it on the exposure table, and then stepping the light source of the exposure table by the distance corresponding to each electron gun spacing of the inline electron gun While irradiating light to the shadow mask through the beam through the beam mask process of the shadow mask and landing the light landing on the inner surface of the panel step by step with the optical sensor, and inputs the optical information scanned by the optical sensor to the central computing unit After the optical information is synthesized, the central computing device drives the plotter with the integrated optical information to draw and form a fluorescent film on the inner surface of the panel.
이하 본 발명에 따른 한 바람직한 실시예를 상세하게 설명한다.Hereinafter, one preferred embodiment according to the present invention will be described in detail.
본 발명에 따른 칼라음극선관의 형광막 형성방법은 형광막이 형성되지 않은 패널(P)에 섀도우마스크(S)를 결합시키고, 이를 노광대(1)에 재치시킨 다음 노광대의 광원(2)을 인라인형 전자총의 각 전자총 간격에 해당하는 거리만큼 단계적으로 이동시키면서 상기 섀도우마스크(S)에 광을 조사시켜 상기 섀도우마스크(S)의 빔통과공을 통해 패널(P)내면에 랜딩되는 광을 단계적으로 광센서(3)으로 스캐닝한다. 그리고 광센서(3)에 의해 스캐닝된 광정보를 단계적으로 중앙연산기(4)로 입력시키고 중앙연산기(4)에서는 입력된 광정보를 종합하여 종합된 광정보대로 플로터(5)를 구동시켜 플로터에 의해 패널(P`)내면에 형광막이 그려지도록 한 것이다.(제1도 참조).In the method for forming a fluorescent film of a color cathode ray tube according to the present invention, the shadow mask S is coupled to a panel P on which the fluorescent film is not formed, and the shadow mask S is placed on the exposure table 1, and then the light source 2 of the exposure table is inlined. Stepwise irradiating light to the shadow mask S while moving a distance corresponding to the distance between the respective electron guns of the type electron gun, and gradually landing the light landing on the inner surface of the panel P through the beam through hole of the shadow mask S. Scan with the optical sensor 3. Then, the optical information scanned by the optical sensor 3 is inputted step by step to the central calculator 4, and the central calculator 4 drives the plotter 5 by combining the input optical information with the integrated optical information to drive the plotter. The fluorescent film is drawn on the inner surface of the panel P` (see FIG. 1).
상기한 패널내면에 형광막이 형성되는 과정을 좀더 상세히 설명하면, 광센서(3)에서 섀도우마스크(S)의 빔통과공을 통해 패널(P)내면에 랜딩되는 광을 스캐닝하는 과정에서 광센서(3)가 광이 랜딩되지 않은 부분만을 스캐닝하여 중앙연산기(4)에 입력시키면 중앙연산기(4)가 플로터(5)를 입력된 정보대로 구동시켜 패널(P`)내면에 블랙매트릭스를 형성하게 되고 상기 광센서(3)가 광이 랜딩된 부분만을 스캐닝하여 중앙연산기(4)에 입력시키면 중앙연산기(4)가 플로터(5)를 입력된 정보대로 구동시켜 패널(P`)내면에 R,G,B 형광체층을 형성하게 된다.Referring to the process of forming a fluorescent film on the inner surface of the panel in more detail, in the process of scanning the light landing on the inner surface of the panel (P) through the beam through hole of the shadow mask (S) in the optical sensor ( 3) scans only the part where light is not landed and inputs it to the central operator 4, the central operator 4 drives the plotter 5 according to the input information to form a black matrix on the inner surface of the panel P`. When the optical sensor 3 scans only the part where the light is landed and inputs it to the central operator 4, the central operator 4 drives the plotter 5 according to the input information so that the inside of the panel P` is R, G. , B phosphor layer is formed.
이상에서 설명한 바와 같이 본 발명 칼라음극선관의 형광막 형성방법은 광센서에 의해 스캐닝된 광정보를 중앙연산기가 종합하여 종합된 정보대로 플로터를 구동시켜 패널내면에 형광막(블랙매트릭스 및/또는 R,G,B 형광체층)을 플로터가 그려서 형성하도록 되어 있으므로 그 제조공정이 간단하여 기존의 형광막 형성방법에서 발생되던 제반 문제점을 해결할 수 있게 되어 제품의 생산성이 향상되게 된다.As described above, the fluorescent film forming method of the color cathode ray tube of the present invention drives the plotter according to the integrated information obtained by combining the central information with the optical information scanned by the optical sensor and displays the fluorescent film (black matrix and / or R) on the inner surface of the panel. (G, B phosphor layer) is formed by drawing the plotter, so that the manufacturing process is simple to solve all the problems caused by the conventional fluorescent film forming method is to improve the productivity of the product.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019910014735A KR930006886B1 (en) | 1991-08-24 | 1991-08-24 | Method of making a fluorescent screen of color crt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019910014735A KR930006886B1 (en) | 1991-08-24 | 1991-08-24 | Method of making a fluorescent screen of color crt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR930005066A KR930005066A (en) | 1993-03-23 |
| KR930006886B1 true KR930006886B1 (en) | 1993-07-24 |
Family
ID=19319098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019910014735A KR930006886B1 (en) | 1991-08-24 | 1991-08-24 | Method of making a fluorescent screen of color crt |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR930006886B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08264122A (en) * | 1995-03-28 | 1996-10-11 | Nec Kansai Ltd | Alignment measuring device, and its usage |
-
1991
- 1991-08-24 KR KR1019910014735A patent/KR930006886B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR930005066A (en) | 1993-03-23 |
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