KR930006885B1 - Method of making a fluorescent screen of crt - Google Patents
Method of making a fluorescent screen of crt Download PDFInfo
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- KR930006885B1 KR930006885B1 KR1019910014740A KR910014740A KR930006885B1 KR 930006885 B1 KR930006885 B1 KR 930006885B1 KR 1019910014740 A KR1019910014740 A KR 1019910014740A KR 910014740 A KR910014740 A KR 910014740A KR 930006885 B1 KR930006885 B1 KR 930006885B1
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- fluorescent film
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- panel
- exposed
- fluorescent
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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
- H01J9/2271—Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines by photographic processes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2209/00—Apparatus and processes for manufacture of discharge tubes
- H01J2209/01—Generalised techniques
- H01J2209/012—Coating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2209/00—Apparatus and processes for manufacture of discharge tubes
- H01J2209/01—Generalised techniques
- H01J2209/017—Cleaning
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
Abstract
Description
제1도는 종래 음극선관의 형광막 제조방법에 있어 형광막이 노광된 상태인 패널의 현상세척공정을 실시하기 위한 현상장치의 입단면도.1 is a cross-sectional view of a developing apparatus for performing a developing cleaning process of a panel in which a fluorescent film is exposed in a conventional method of manufacturing a fluorescent film of a cathode ray tube.
제2도는 본 발명에 따른 음극선관의 형광막 제조방법의 제조공정을 보인 공정도.2 is a process chart showing the manufacturing process of the fluorescent film manufacturing method of the cathode ray tube according to the present invention.
제3도는 본 발명에 따른 음극선관의 형광막 제조방법에 있어 형광막이 노광된 패널을 예비현상작업하고, 현상세척작업하는 것을 보인 현상장치의 입단면도.Figure 3 is a cross-sectional view of a developing apparatus showing the pre-development work, the development and cleaning of the panel exposed to the fluorescent film in the method for producing a fluorescent film of the cathode ray tube according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
10 : 캐리어 20 : 저장자10: carrier 20: reservoir
30 : 현상장치 30a : 분사노즐30: developing apparatus 30a: injection nozzle
P : 패널P: Panel
본 발명은 음극선관의 형광막 제조방법에 관한 것이다.The present invention relates to a method for producing a fluorescent film of a cathode ray tube.
일반적으로 음극선관의 패널에 형광막을 제조하는 방법은 다음과 같은 단계를 거쳐 형광막을 형성하는 것이다. 즉, 음극선관의 패널 내면에 R,G,B 형광체중 적어도 하나를 도포하는 형광막 슬러리 공정/상기 패널 내면에 도포된 형광막을 건조하는 형광막 건조공정/상기 형광막을 소정패턴을 갖도록 노광하는 형광막 노광공정/상기 노광된 형광막을 소정의 패턴으로 현상하는 형광막 현상공정을 거침으로써 패널내면에 소정패턴의 형광막이 현상되는 것이다.In general, a method of manufacturing a fluorescent film on a panel of a cathode ray tube is to form a fluorescent film through the following steps. That is, a fluorescent film slurry process for applying at least one of R, G, and B phosphors to the inner surface of the cathode ray tube / a fluorescent film drying process for drying the fluorescent film applied to the inner surface of the panel / fluorescence for exposing the fluorescent film to have a predetermined pattern A film exposure process / a fluorescent film development process of developing the exposed fluorescent film in a predetermined pattern is performed to develop a fluorescent film of a predetermined pattern on the inner surface of the panel.
이때 노광된 형광막을 소정의 패턴으로 현상하는 형광막 현상세척 공정은 제1도에 도시된 바와 같이 그 내면에 형광막이 도포되어 노광완료된 패널(P)은 이송기구, 예를들면 캐리어(1)에 물려 현상장치(2)의 전면에 위치되어진다.At this time, in the fluorescent film developing and washing process of developing the exposed fluorescent film in a predetermined pattern, the fluorescent film is coated on the inner surface thereof as shown in FIG. 1 so that the exposed panel P is transferred to the transfer mechanism, for example, the carrier 1. The bite is placed in front of the developing apparatus 2.
이와 같은 상태에서 상기 현상창치(2)에 마련된 분사노즐(2a)를 통하여 분사된 현상수에 의해 노광이 되지 않은 형광막, 다시말하면 경화되지 않은 형광막을 제거하는 것이다.In such a state, the fluorescent film which is not exposed by the developing water injected through the injection nozzle 2a provided in the developing window 2, that is, the uncured fluorescent film is removed.
하지만 상기와 같이 현상장치(2)에 마련된 분사노즐(2a)을 통하여 현상수를 뿜어내어 경화되지 않는 형광막을 제거하는 방법은 경화되지 않은 형광막이 완전히 제거되지 않고 잔류되는 문제점이 발생되며, 이에따라 잔류된 형광막에 다른 형광막이 도포되어짐으로써 음극선관의 동작시 그 휘도를 떨어드리는 색 번짐 불량 현상이 발생되는 것이다.However, the method of removing the uncured fluorescent film by spraying developing water through the injection nozzle 2a provided in the developing apparatus 2 as described above causes a problem that the uncured fluorescent film is not completely removed and remains. When the other fluorescent film is applied to the fluorescent film, the color bleeding defect which reduces its brightness during operation of the cathode ray tube is generated.
또한, 이와 같은 문제점을 해결하기 위하여 현상장치의 분사노즐로 부터 분사되는 현상수의 온도를 높이거나, 또는 분사압력을 높이는 것은, 경화되지 않은 형광막 뿐만아니라 노광에 의해 경화된 형광막까지 제거되게 되는 문제점이 발생됐다.In addition, in order to solve such a problem, increasing the temperature of the developing water sprayed from the spray nozzle of the developing apparatus, or increasing the spray pressure may remove not only the uncured fluorescent film but also the cured fluorescent film by exposure. There was a problem.
본 발명은 상기와 같은 종래 음극선관의 형광막 제조방법의 문제점을 감안하여 창출된 것으로서, 경화되지 않은 형광막만을 제거하여 정확한 위치에 R,G,B 형광막을 형성할 수 있음으로써 음극선관의 동작시 색순도 및 휘도를 향상시킬수 있는 음극선관의 형광막 제조방법을 제공하는데 그 목적이 있다.The present invention was created in view of the problems of the conventional method for manufacturing a fluorescent film of the cathode ray tube, and by removing only the uncured fluorescent film, it is possible to form the R, G, B fluorescent film in the correct position to operate the cathode ray tube It is an object of the present invention to provide a method for producing a fluorescent film of a cathode ray tube that can improve color purity and luminance.
상기 목적을 달성하기 위하여 본 발명에 따른 음극선관의 형광막 제조방법은, 음극선관의 패널 내면에 R,G,B 헝광체중 적어도 하나를 도포하는 형광막 슬러리공정과, 상기 패널내면에 도포된 형광막을 건조하는 형광막 건조공정과, 상기 노광된 형광막을 소정의 패턴으로 현상하는 형광막 현상세척공정을 포함하는 음극선관의 형광막 제조방법에 있어서, 상기 형광막 노광공정과, 상기 형광막 현상세척공정 사이에 노광완료된 형광막을 연화시키는 예비현상공정을 포함하도록 하는 것에 그 특징이 있다.In order to achieve the above object, a method of manufacturing a fluorescent film of a cathode ray tube according to the present invention includes a phosphor film slurry process of coating at least one of R, G, and B phosphors on an inner surface of a cathode ray tube, and the inner surface of the panel. A fluorescent film manufacturing method of a cathode ray tube comprising a fluorescent film drying step of drying a fluorescent film and a fluorescent film developing and washing step of developing the exposed fluorescent film in a predetermined pattern, wherein the fluorescent film exposure step and the fluorescent film development It is characterized by including a pre-development step of softening the exposed fluorescent film between the cleaning steps.
이하 본 발명에 따른 음극선관의 형광막 제조방법의 바람직한 일 실시예를 첨부된 도면을 참조하여 상세히 설명한다.Hereinafter, a preferred embodiment of a method of manufacturing a fluorescent film of a cathode ray tube according to the present invention will be described in detail with reference to the accompanying drawings.
제2도에서는 본 발명에 따른 음극선관의 형광막 제조방법에 있어 패널 내면에 형광막을 형성시키기 위한 공정순서가 도시되어 있는 바, 이를 상세히 설명한다.2 shows a process sequence for forming a fluorescent film on an inner surface of a panel in the method of manufacturing a fluorescent film of a cathode ray tube according to the present invention, which will be described in detail.
패널의 내면을 상향시켜 약간 경사진채 소정회전수단으로서 패널을 저속 회전시키면서 패널 상방으로 부터 일정량의 형광체 즉 R,G,B 형광체중 적어도 하나를 주입하며 이어서 패널을 고속으로 회전시켜 패널내면에 확포하는 형광체 도포공정과, 상기 패널을 통상의 형광체 회수장치에 옮긴다음 이를 고속회진시켜 그 원심력을 이용하여 패널내면에 확포되고 남은 잉여분의 형광체를 회수하는 잉여형광체 회수공정과, 상기 잉여형광체 회수공정의 형광체 회수 작업에 의해 패널의 연부에 부착된 잔여형광체 및 이물질을 세정장치로써 세정하는 연부세정공정과, 건조수단으로서 가열건조하는 건조공정과, 상기 건조공정에 제4공정에 의해 건조된 형광막을 소정패턴을 갖도륵 통상의 광(초고안수온등)에 의해 노광시키는 노광공정과, 상기 노광공정에 의해 노광완료된 형광막을 갖는 패널을 현상수가 담기 저장조에 소정시간 담그는 에비현상공정과, 상기 예비현상공정에서 에비현상된 패널을 현상부로 이송시켜 현상부의 노즐로써 현상세척공정을 순차적으로 포함한다.While the panel is rotated at a low speed while the panel is rotated at a low speed while being slightly inclined, the panel is injected with at least one of phosphors, that is, R, G, and B phosphors, and the panel is rotated at a high speed to expand on the panel. A phosphor coating step, an excess phosphor recovery step of transferring the panel to a conventional phosphor recovery device, and then recovering the excess phosphor remaining on the inner surface of the panel by using a centrifugal force, and using the centrifugal force, and the phosphor of the excess phosphor recovery step A soft cleaning step for cleaning the remaining phosphor and foreign matter adhering to the edge of the panel by a recovery operation with a cleaning device, a drying step for heating and drying as a drying means, and a fluorescent film dried by the fourth step in the drying step as a predetermined pattern. The exposure step of exposing by normal light (ultra high temperature), and the exposure step The evaporation process of immersing the panel having the exposed fluorescent film in the developing water storage tank for a predetermined time, and the developing washing process as the nozzle of the developing part by transferring the panel developed in the preliminary development process to the developing part.
이러한 일련의 공정은 R,G,B 3색의 형광체에 대하여 각각 반복적으로 수행한다.This series of steps is repeated for each of the R, G, B three-color phosphor.
이러한 각 공정에서 특히 예비현상공정은, 경화된 형광막을 연화시켜 현상세척작업을 원활히 수행하기 위한 예비공정인 바, 이를 제3도를 참조하여 상세히 설명한다.In each of these processes, the preliminary development process is a preliminary process for softening the cured fluorescent film to smoothly perform the development cleaning operation, which will be described in detail with reference to FIG. 3.
노광공정에서 노광완료된 형광막을 갖는 패널(P)은 이송수단, 예를들어 캐리어(10)에 물린채 저장조(20)로 이송되어있다. 상기 저장조(20)에서 현상수가 담겨져 있는 바, 상기 패널(P)을 저장조(20)의 현상수 속에 소정시간 담군다.The panel P having the fluorescent film exposed in the exposure process is transferred to the storage tank 20 while being bitten by the transfer means, for example, the carrier 10. As the developing water is contained in the storage tank 20, the panel P is immersed in the developing water of the storage tank 20 for a predetermined time.
이에 의해 노광완료된 형광막은 연화되는 것이다.As a result, the exposed fluorescent film is softened.
이와 같이 형광막이 연화된 상태에서 캐리어(10)에 의해 현상부(30)로 이송시킨다음 현상창치(30)에 마련된 분사노즐(30a)을 통하여 현상수를 패널(P) 내면에 분사시킴으로써 현상세척 작업을 완료하는 것이다.In this way, the fluorescent film is softened, and then transferred to the developing unit 30 by the carrier 10, and then the developing water is sprayed onto the inner surface of the panel P through the spray nozzle 30a provided in the developing window 30. To complete the task.
이러한 본 발명에 의하면, 형광막 노광공정과, 형광막 현상공정 사이에 노광완료된 형광막의 연화를 위하여 예비현상공정을 추가함으로써 현상세척작업시 분사노즐을 통하여 분사되는 현상수의 압력을 적게하여도 경화되지 않은 형광막만을 원활히 제거할 수 있는 것이다.According to the present invention, a pre-development step is added between the fluorescent film exposure step and the fluorescent film development step to soften the exposed fluorescent film, thereby hardening even if the pressure of the developing water sprayed through the injection nozzle is reduced during the development cleaning operation. Only unfluorescent film can be removed smoothly.
이에 따라 패널 내면에 R,G,B형광체를 정확하게 소정패턴을 갖도록 형성할 수 있는 것이어서 종래 색간섭에 의한 색 번짐을 막을 수 있는 것이다. 따라서 음극선관의 동작시 그 색순도 및 휘도를 향상시킬수 있다.Accordingly, the R, G, and B phosphors can be formed on the inner surface of the panel to have a predetermined pattern accurately, thereby preventing color bleeding due to conventional color interference. Therefore, the color purity and brightness can be improved during operation of the cathode ray tube.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019910014740A KR930006885B1 (en) | 1991-08-24 | 1991-08-24 | Method of making a fluorescent screen of crt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019910014740A KR930006885B1 (en) | 1991-08-24 | 1991-08-24 | Method of making a fluorescent screen of crt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR930005067A KR930005067A (en) | 1993-03-23 |
| KR930006885B1 true KR930006885B1 (en) | 1993-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019910014740A KR930006885B1 (en) | 1991-08-24 | 1991-08-24 | Method of making a fluorescent screen of crt |
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| Country | Link |
|---|---|
| KR (1) | KR930006885B1 (en) |
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1991
- 1991-08-24 KR KR1019910014740A patent/KR930006885B1/en not_active IP Right Cessation
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| KR930005067A (en) | 1993-03-23 |
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