KR19980023548A - Formation method of fluorescent film of color brown tube - Google Patents

Formation method of fluorescent film of color brown tube Download PDF

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Publication number
KR19980023548A
KR19980023548A KR1019960043042A KR19960043042A KR19980023548A KR 19980023548 A KR19980023548 A KR 19980023548A KR 1019960043042 A KR1019960043042 A KR 1019960043042A KR 19960043042 A KR19960043042 A KR 19960043042A KR 19980023548 A KR19980023548 A KR 19980023548A
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South Korea
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phosphor
forming
film
fluorescent film
exposed
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KR1019960043042A
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Korean (ko)
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KR100232802B1 (en
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박용욱
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엄길용
오리온전기 주식회사
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00Apparatus 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
    • H01J9/20Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
    • H01J9/22Applying luminescent coatings
    • H01J9/227Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines
    • H01J9/2278Application of light absorbing material, e.g. between the luminescent areas
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00Apparatus 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
    • H01J9/20Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
    • H01J9/22Applying luminescent coatings
    • H01J9/227Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines
    • H01J9/2271Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines by photographic processes

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)

Abstract

본 발명은 컬러브라운관의 형광막 형성방법에 관한 것으로 먼저 판넬내면에 블루형광체를 도포하고 그 다음 노광하고 그린형광체를 도포하고 노광하고 세 번째로 레드형광체를 도포하고 노광하여 형광체를 형성한 후 알루미늄막을 형성하는 종래 넌 비엠(Non-BM)방식은 화면에서 명암 구별이 안되어 콘트라스트가 저하되는 문제점이 있어 왔으나, 이를 해결하기 위하여 형광막 형성전에 레지스트 패턴을 형성하고, 그 후에 블루형광체를 도포 및 노광하고 그린 및 레드형광체를 순차 도포 및 노광하여 형광막을 형성한 다음, 흑연을 포함하는 래커를 스프레이한 후 알루미늄막을 형성한 것이다.The present invention relates to a method for forming a fluorescent film of a color brown tube, and first, a blue phosphor is applied to an inner surface of a panel, and then exposed, a green phosphor is applied and exposed, and a third red phosphor is applied and exposed to form a phosphor, followed by an aluminum film. Conventional non-BM method has a problem that the contrast is reduced because the contrast is not distinguished on the screen, but to solve this problem, a resist pattern is formed before forming the fluorescent film, and then a blue phosphor is applied and exposed. The green and red phosphors are sequentially coated and exposed to form a fluorescent film, and then sprayed with a lacquer containing graphite to form an aluminum film.

Description

컬러브라운관의 형광막 형성방법Formation method of fluorescent film of color brown tube

본 발명은 컬러브라운관의 형광막 형성방법에 관한 것으로, 보다 상세하게는 넌 비엠(Non-BM) 방식의 형광막 형성방법에 관한 것이다.The present invention relates to a method of forming a fluorescent film of a color brown tube, and more particularly, to a method of forming a fluorescent film of a non-BM method.

일반적으로, 스크린 공정은 판넬내면에 칼라를 나타내는 3 색의 형광체 청색(B), 녹색(G), 적색(R)을 순차적으로 도포하는 공정으로서,In general, the screen process is a process of sequentially applying three colors of phosphor blue (B), green (G), and red (R) on a panel inner surface.

현재 사용되는 방법은 먼저 판넬내면에 무반사 흑색도료를 코팅한 후 형성된 블랙매트릭스 사이의 도트(Dot) 또는 홀(Hole)에 칼라를 나타내는 형광체를 순차도포하는 BM방식이 일반적이다.The current method is a BM method in which a fluorescent material showing a color in dots or holes between black matrices formed by first coating an antireflective black paint on a panel inner surface is generally used.

그러나 이와 같은 BM 방식은 형광체 도포전의 블랙코팅을 함으로써 공정이 복잡하고 그에 따른 비용추가는 물론 블랙코팅시 수득율이 40~40% 밖에 안되며 불량품을 수정하여 재처리할 경우까지 포함하더라도 불량율이 30%까지 이르게 된다.However, this BM method is complicated by the black coating before the coating of the phosphor, and the cost is increased accordingly, and the yield is only 40 to 40% when the black coating is applied. Even if the defective product is corrected and reprocessed, the defective rate is up to 30%. This leads to.

따라서 판넬내면에 블랙매트릭스의 형성없이 직접 칼라를 나타내는 형광체를 형성하는 넌비엠(no-BM) 방식을 채택하는 경우도 있다.Therefore, in some cases, a non-BM method may be employed in which a phosphor representing a color is directly formed on the inner surface of the panel without forming a black matrix.

이와 같은 종래 넌비엠방식은 도 1의 도시와 같이 판넬내면에 청색(B)을 나타내는 형광체를 도포하고 노광하여 청색을 나타내는 형광체를 형성하고, 두 번째로 녹색(G)을 나타내는 형광체를 도포하고 노광하여 상기 청색을 나타내는 형광체 측면에 녹색을 나타내는 형광체를 형성하고, 마지막으로 적색(R)을 나타내는 형광체를 도포한 후 노광하여 상기 청색(B), 녹색(G)을 나타내는 형광체측면에 적색을 나타내는 형광체를 형성시켜 판넬내면 전체에 청색, 녹색 및 적색을 나타내는 형광체를 형성시킨 후 그외 표면에 래거(10)를 도포하고 최종적으로 알루미늄막(20)을 증착시키는 것이다.In the conventional non-BM method, as shown in FIG. 1, a blue phosphor (B) is coated and exposed on an inner surface of a panel to form a blue phosphor, and a second phosphor is coated with green (G). To form a green phosphor on the side of the blue phosphor, and finally to apply a phosphor representing red (R) and then to expose the phosphor to exhibit red on the side of the phosphor representing blue (B) and green (G). Forming a phosphor to form a blue, green and red phosphor on the entire inner surface of the panel after applying the lager 10 on the other surface and finally to deposit the aluminum film 20.

그러나, 이와 같은 종래 넌비엠방식의 형광체 형성방법은 공정이 간단하고 수득율이 높은 반면에 외광에 의한 알루미늄막의 반사에 의한 문제와 각형광체(R, G, B)사이에 간격이 없으므로 발광시 간섭에 의하여 콘트라스트(Contrast)가 저하되는 심각한 문제점이 초래되게 된다.However, the conventional non-BMP phosphor formation method has a simple process and a high yield, but there is no problem between reflection of the aluminum film by external light and no gap between the phosphors R, G and B. This causes a serious problem that the contrast is lowered.

본 발명은 이러한 넌비엠방식의 문제점을 해결하기 위하여 안출한 것으로, 각형광체(R, G, B) 사이에 간격을 형성하여 발광시의 간섭으르 방지하여 콘트라스트가 저하되지 않도록 한 넌비엠방식의 컬러브라운관의 형광막 형성방법의 제공을 그 목적으로 한다.The present invention has been devised to solve the problem of the non-BM method, by forming a gap between the square phosphors (R, G, B) to prevent the interference during light emission non-BOM type color It is an object of the present invention to provide a method for forming a fluorescent film of a CRT.

도 1 은 종래의 형광막 형성공정을 나타내는 도면,1 is a view showing a conventional fluorescent film forming process,

도 2 는 본 발명의 형광막 형성공정을 나타내는 도면.2 is a view showing a fluorescent film forming process of the present invention.

*도면의 주요 부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

1 ..... 블랙매트릭스,5 ..... 흑연,1 ..... black matrix, 5 ..... graphite,

10 ...... 래거,20 ..... 알루미늄증착막.10 ...... Lager, 20 ..... Aluminum film.

본 고안은 상기한 과제를 해결하기 위하여, 본 발명의 형광막 형성방법은 먼저 판넬내면에 수용성 감광제를 도포하고 형광체 형성위치에만 노광하여 레지스트 패턴(Resist Pattern)을 형성하고, 상기 레지스트 패턴위에 각각 청색, 녹색, 적색을 나타내는 형광체를 순차적으로 도포한 후에 상기 형광체 사이에 흑연을 포함하는 래커를 도포하고 그 위에 최종적으로 알루미늄증착막을 형성시켜서 되는 것을 특징으로 한다.The present invention is to solve the above problems, the method of forming a fluorescent film of the present invention first to apply a water-soluble photosensitive agent on the inner surface of the panel to form a resist pattern (Resist Pattern) by exposing only to the phosphor forming position, each blue on the resist pattern And subsequently applying green, red phosphors, and then applying a lacquer containing graphite between the phosphors and finally forming an aluminum deposition film thereon.

상기한 기술적 구성에 따른 본 발명을 첨부한 도면을 참조하여 보다 구체적으로 설명하면,With reference to the accompanying drawings of the present invention according to the technical configuration described in more detail,

도 2 는 본 발명의 형광막 형성공정을 나타내는 도면으로서, 먼저 컬러브라운관의 판넬 표면에 통상의 레지스트(감광액)를 도포하고 선택적으로 필요한 부분만 노광시켜 레지스트 패턴(1)을 형성한다.FIG. 2 is a view showing a process for forming a fluorescent film of the present invention. First, a conventional resist (photosensitive liquid) is applied to a panel surface of a color brown tube, and only a necessary portion is exposed to form a resist pattern 1.

그리고 레지스트 패턴이 형성된 판넬에 청색을 나타내는 형광체를 도포한 후 선택된 레지스트 패턴위의 형광체만 노광시켜 레지스트 패턴위에 청색을 나타내는 형광막(B)을 형성한다.Then, a blue phosphor is applied to a panel on which a resist pattern is formed, and then only the phosphor on the selected resist pattern is exposed to form a blue phosphor B on the resist pattern.

그리고 동일한 방법으로 녹색을 나타내는 형광체 및 적색을 나타내는 형광막을 레지스트 패턴(1)위에 순차로 도포하여 판넬에 형광체를 형성한다.In the same manner, phosphors representing green and phosphors representing red are sequentially applied on the resist pattern 1 to form phosphors on the panel.

따라서, 최초로 형성된 레지스트 패턴위에만 색을 나타내는 형광막이 형성되게 된다.Thus, a fluorescent film showing color is formed only on the firstly formed resist pattern.

그리고, 흑연(5)과 같은 무반사 흑색물질을 포함하는 도료(10)를 도포하여 수지막을 형성하여 평면처리한 후 종래와 같이, 진공상태에서 형광면에 알루미늄을 증착시켜 알루미늄막(20)을 형성하게 되는 것이다.Then, by coating a coating material 10 containing an antireflective black material such as graphite (5) to form a resin film and performing a plane treatment, as in the prior art, aluminum is deposited on a fluorescent surface in vacuum to form an aluminum film (20). Will be.

이와 같은 방법에 의한 형광막 형성은 색을 나타내는 형광체 도포전에 레지스트 패턴(1)을 형성함으로써 각 형광체와 판넬간의 접착성을 향상시키고 동시에 레지스트 패턴(1)이 형성되지 않은 판넬의 유리면과의 접착성 차이로 인해 유리면에 형광체가 잔류하는 것이 방지된다.The formation of the fluorescent film by this method is performed by forming the resist pattern 1 before the color phosphor is applied, thereby improving the adhesiveness between each phosphor and the panel, and simultaneously with the glass surface of the panel on which the resist pattern 1 is not formed. The difference prevents the phosphor from remaining on the glass surface.

또한, 형성된 레지스트 패턴 위에 형성된 형광체들 사이의 간격부위에 무반사 흑색도료(5)를 도포함으로써 종래 넌비엠방식의 문제인 콘트라스트를 크게 향상시킨 것이다.In addition, by applying the anti-reflective black paint (5) to the gap between the phosphors formed on the formed resist pattern, the contrast which is a problem of the conventional non-BM method is greatly improved.

위에서 상세히 설명한 바와 같이, 본 발명의 형광체막 형성방법은, 형광체 도포전에 레지스트 패턴을 형성하고 형성된 레지스트 패턴위에 색을 나타내는 형광체를 형성하고 형성된 형광체들 사이에 무반사 흑색물질을 포함하는 수지를 도포한 후 알루미늄을 증착함으로써, 형광체의 접착성이 향상되며 기존의 비엠방식과 동등한 콘트라스트를 유지할 수 있으면서 블랙코팅공정이 생략되므로 원가절감 및 수득율 향상을 기할 수 있는 것이다.As described in detail above, the method of forming a phosphor film according to the present invention comprises forming a resist pattern before applying a phosphor, forming a phosphor having a color on the formed resist pattern, and applying a resin containing an antireflective black material between the formed phosphors. By depositing aluminum, the adhesion of the phosphor is improved and the black coating process can be omitted while maintaining the same contrast as the conventional BM method, thereby reducing the cost and improving the yield.

본 발명의 목적은 각 형광체(R.G.B) 사이에 간격을 형성하여 발광시의 간섭이 방지되고 콘트라스트가 저하되지 않으므로서 고품의 컬러브라운관을 제조할 수 있는 넌비엠(Non-BM)방식의 컬러브라운관의 형광막형성방법을 제공하는 것이다.An object of the present invention is to form a gap between each phosphor (RGB) of the non-BM (Color Non-BM) type of color brown tube which can produce a high quality color brown tube without the interference is prevented and the contrast is lowered It is to provide a fluorescent film forming method.

Claims (1)

판넬내면에 청색을 나타내는 형광체를 도포하고 노광하여 청색을 나타내는 형광막(B)을 형성하고, 그 다음 녹색을 나타내는 형광체를 도포하고 노광하여 녹색을 나타내는 형광체를 형성하고, 그 다음 적색을 나타내는 형광체를 도포하고 노광하여 적색을 나타내는 형광막(G) 형성시킴으로써 판넬내면에 형광체를 형성한 후 그외 표면에 래커(5)를 도포하고 알루미늄막을 증착시켜서 되는 넌비엠(Non-BM) 방식 형광막 형성방법에 있어서,The inner surface of the panel is coated with a blue phosphor, followed by exposure to form a blue phosphor film (B), then a green phosphor is applied and exposed to form a green phosphor, and then a red phosphor is formed. In the method of forming a non-BM fluorescent film by coating and exposing the phosphor film (G) to show red color, the phosphor is formed on the inner surface of the panel, the lacquer 5 is applied to the other surface, and the aluminum film is deposited. In 형광체 형성전에 레지스트를 도포하고 감광하여 형성된 레지스트 패턴(1)을 형성하고 상기 레지스트 패턴위에 형광막을 형성하고, 형광막 형성 후 알루미늄증착전에 무반사 흑색물질을 포함하는 도료를 도포하여 수지막을 형성시키는 것을 특징으로 하는 컬러브라운관의 형광막 형성방법.A resist pattern 1 is formed by applying a resist and photosensitive before forming a phosphor, forming a fluorescent film on the resist pattern, and forming a resin film by coating a paint containing an antireflective black material before aluminum deposition after forming the phosphor film. The fluorescent film forming method of a color brown tube.
KR1019960043042A 1996-09-30 1996-09-30 Phosphor forming method of color braun tube KR100232802B1 (en)

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Cited By (1)

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