KR200147965Y1 - Exposing apparatus for braun tube - Google Patents

Exposing apparatus for braun tube Download PDF

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Publication number
KR200147965Y1
KR200147965Y1 KR2019930020183U KR930020183U KR200147965Y1 KR 200147965 Y1 KR200147965 Y1 KR 200147965Y1 KR 2019930020183 U KR2019930020183 U KR 2019930020183U KR 930020183 U KR930020183 U KR 930020183U KR 200147965 Y1 KR200147965 Y1 KR 200147965Y1
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South Korea
Prior art keywords
correction
cam
geomagnetism
exposure apparatus
exposure
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KR2019930020183U
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Korean (ko)
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KR950009917U (en
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윤장중
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엄길용
오리온전기주식회사
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Priority to KR2019930020183U priority Critical patent/KR200147965Y1/en
Publication of KR950009917U publication Critical patent/KR950009917U/en
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Publication of KR200147965Y1 publication Critical patent/KR200147965Y1/en

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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
    • H01J9/2271Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines by photographic processes
    • H01J9/2272Devices for carrying out the processes, e.g. light houses
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2209/00Apparatus and processes for manufacture of discharge tubes
    • H01J2209/01Generalised techniques
    • H01J2209/012Coating
    • H01J2209/015Machines therefor

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)

Abstract

본 고안은 칼라브라운관의 형광면 제조를 위한 개선된 노광장치를 개시한다.The present invention discloses an improved exposure apparatus for manufacturing fluorescent surfaces of color brown tubes.

종래의 노광장치에 있어서는 별도의 보정렌즈를 구비하여 지자기에 의한 편향을 보정하였으므로 그 구조가 복잡한 문제가 있었다.In the conventional exposure apparatus, since a deflection caused by geomagnetism is corrected by providing a separate correcting lens, the structure has a complicated problem.

본 고안에서는 전자빔의 수직왜곡을 보정하는 보정캠의 캠면을 지자기에 의한 편심거리만큼 이동설치함으로써 보정렌즈없이 지자기를 보정하도록 하였다.In the present invention, the cam surface of the correction cam for correcting the vertical distortion of the electron beam is moved by the eccentric distance by the geomagnetism to correct the geomagnetism without the correction lens.

Description

브라운관 노광장치CRT exposure equipment

제1도는 종래의 노광장치의 한 구성을 보이는 단면도.1 is a cross-sectional view showing a configuration of a conventional exposure apparatus.

제2도는 지자기의 작용과 그 보정렌즈의 기능을 보이는 광경로도.2 is an optical path diagram showing the action of the geomagnetism and the function of the correction lens.

제3도는 종래의 보정캠의 기능을 보이는 평면도.3 is a plan view showing the function of a conventional correction cam.

제4도는 본 고안 노광장치의 원리를 설명하는 보정캠의 단면도.4 is a cross-sectional view of a correction cam illustrating the principle of the exposure apparatus of the present invention.

제5도는 제4도에 따른 각 전자빔 또는 노광광의 랜딩선도이다.5 is a landing line diagram of each electron beam or exposure light according to FIG.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

P : 패널(panel) K : 보정캠(補正 cam)P: panel K: correction cam

r, g, b : 캠면(cam face) R, G, B : (각 전자빔의) 랜딩 패턴(landing pattern)r, g, b: cam face R, G, B: landing pattern (for each electron beam)

본 고안은 칼라 브라운관의 제조에 관한 것으로, 더 상세히는 그 형광면 제조를 위한 노광장치에 관한 것이다.The present invention relates to the production of a color CRT, and more particularly to an exposure apparatus for producing the fluorescent surface.

칼라브라운관의 형광면은 블랙(black matrix)사이에 R, G, B 형광체의 미세한 스트라이프(stripe) 또는 도트(dot)를 형성하여 이뤄진 것이다. 이러한 미세 구조형성에 가장 적합한것은 사진식각방법(lithographic method)이므로, 형광면의 블랙매트릭스와 R, G, B 스트라이프는 색선별 수단인 섀도우마스크(shadow mask)를 노광 마스크로 하여 패널(panel) 내면에 순차적으로 형성되어 형광면을 구성하게 된다.The fluorescent surface of the color CRT is formed by forming fine stripes or dots of R, G, and B phosphors between black matrices. The most suitable for forming such a microstructure is the lithographic method, so the black matrix of the fluorescent surface and the R, G, and B stripes are exposed to the inner surface of the panel by using a shadow mask as an exposure mask. It is formed sequentially to form a fluorescent surface.

제1도에 이러한 노광방법의 일반적 구성을 도시하였다.1 shows a general configuration of such an exposure method.

면판(A)상에는 그 내면에 형광면 소재가 도포된 패널(P)이 섀도우마스크(M)와 결합되어 거치되어 있다.On the face plate (A), a panel (P) coated with a fluorescent surface material on its inner surface is mounted in combination with the shadow mask (M).

섀도우마스크(M)와 광원(Hg) 사이에는 광원(Hg)으로부터의 입사광을 전자빔과 동일한 경로로 패널(P)에 입사되도록 하기위한 여러가지 보정수단이 구비되는데, 예를들어 도면에는 주보정렌즈(Lm)와 웨지렌즈(Wedge lens;Lw)가 도시되어 있다.Various correction means are provided between the shadow mask M and the light source Hg to allow incident light from the light source Hg to enter the panel P in the same path as the electron beam. Lm) and Wedge lens (Lw) are shown.

나머지 부호 K는 전자빔의 수직왜곡을 보정하는 보정캠, R은 가이드롤러(guide roller)이다.The remaining code K is a correction cam for correcting vertical distortion of the electron beam, and R is a guide roller.

주보정렌즈(Lm)는 전자빔의 입사중심의 화면상의 위치에 따라 변화함에 따라 노광광의 입사각, 즉 노광중심의 패널(P)의 위치에 따라 변화시키는 복합렌즈이다.The main correction lens Lm is a composite lens which changes according to the incident angle of exposure light, that is, the position of the panel P of the exposure center as it changes depending on the position on the screen of the center of incidence of the electron beam.

한편 웨지렌즈(Lw)는 R, G, B 각 전자총에 대응하도록 광원(Hg)이 이동할때 그 반대측의 패널(P) 외측으로 갈수록 노광광의 입사각이 왜곡되고 노광폭이 좁아지는 것을 보정하기 위한 것으로 R, B 노광시 서로 반대방향으로 회전되고 G 노광시는 중립위치에 있게 된다.On the other hand, the wedge lens (Lw) is for correcting that the incident angle of the exposure light is distorted and the exposure width is narrowed toward the outside of the panel (P) on the opposite side when the light source (Hg) moves to correspond to each of the R, G, B electron gun It is rotated in the opposite direction to each other during R and B exposure, and is in a neutral position during G exposure.

한편 지자기(地磁氣)의 영향을 보정하기위한 보정렌즈(Lg)도 사용되는데 그 작용을 제2도를 참조해 살펴보기로 한다.On the other hand, a correction lens (Lg) for correcting the influence of geomagnetism (地磁 氣) is also used and its operation will be described with reference to FIG.

즉 제2a도의 브라운관(T)의 전자총(G)에서 발사된 전자빔은 지자기의 영향에 의해 그 경로가 변화되어만큼 편심된 위치에 랜딩된다.That is, the path of the electron beam emitted from the electron gun G of the cathode ray tube T of FIG. 2a is changed by the influence of geomagnetism. Landing in an eccentric position.

이에따라 패널(P)의 노광시에는 제2b도에 도시된 바와같이 보정렌즈(Lg)로 노광광을 일률적으로만큼 편심되게 함으로써 전자빔의 편심을 모사(simulation)하게 된다.Accordingly, when the panel P is exposed, the exposure light is uniformly emitted with the correction lens Lg as shown in FIG. 2B. By eccentricity, the eccentricity of the electron beam is simulated.

그런데 노광장치는 제1도에 도시된 보정수단외에도 광량보정을 위한 ND(Neutral Density) 필터나 셔터(shutter) 그리고 광원(Hg)등의 구동기구등 복잡한 구성요소들이 구비되므로 지자기 보정렌즈(Lg)의 추가는 이를 더욱 복잡화하는 것이다.However, since the exposure apparatus includes complex components such as a ND (Neutral Density) filter, a shutter, and a driving mechanism such as a light source Hg in addition to the correction means shown in FIG. 1, the geomagnetic correction lens Lg The addition of to further complicate this.

이에따라 본 고안의 목적은 지자기 보정렌즈를 별도로 구비하지 않고도 지자기보정을 행할수 있는 노광장치를 제공하는 것이다.Accordingly, an object of the present invention is to provide an exposure apparatus capable of performing geomagnetic correction without having a geomagnetic correction lens separately.

이러한 목적을 달성하기 위한 본 고안 노광장치는 전자빔의 수직왜곡을 보상하는 보정캠이 패널의 수평방향으로 자자기에 의한 편심거리만큼 편심되는 것을 특징으로 한다.The inventive exposure apparatus for achieving the above object is characterized in that the correction cam for compensating the vertical distortion of the electron beam is eccentrically by the eccentric distance by the magnetism in the horizontal direction of the panel.

이와같은 본 고안의 구체적 특징과 이점은 첨부된 도면을 참조한 이하의 바람직한 실시예의 설명으로 더욱 명확해질 것이다.Such specific features and advantages of the present invention will become more apparent from the following description of the preferred embodiments with reference to the accompanying drawings.

제3도에서, 패널(P)상에 형성되는 전자빔의 랜딩위치를 살펴보면 편향장치의 편향특성에 의해 G 빔의 수직방향으로 보아 직선으로 랜딩되는 반면, R빔과 B빔은 수직방향 외측으로 갈수록 G빔으로부터 멀어져 호(arc)를 그리는 랜딩왜곡이 발생된다.In FIG. 3, when the landing positions of the electron beams formed on the panel P are viewed, they are landed in a straight line in the vertical direction of the G beam due to the deflection characteristics of the deflecting device, while the R and B beams are gradually moved outward in the vertical direction. Landing distortion occurs, drawing an arc away from the G beam.

이에따라 패널(P)이 적재되는 노광대의 면판(A) 일측에는 이러한 각 빔의 랜딩특성을 모사하여 전자빔과 동일한 노광특성을 주기위해 보정캠(K)이 구비되어 이에 접촉하는 가이드롤러(R)에 의해 면판(A)이 수평방향으로 이동하게 된다.Accordingly, one side of the face plate A of the exposure table on which the panel P is loaded is provided with a correction cam K to simulate the landing characteristics of each beam and to give the same exposure characteristics as the electron beam, and to the guide roller R in contact therewith. As a result, the face plate A is moved in the horizontal direction.

보정캠(K)은 R, G, B 각 빔의 랜딩호에 따른 R, G, B 각 캠면(r, g, b)을 구비하여, 가이드롤러(R)는 각 형광체의 형성시 해당 캠면(r, g, b)에 접촉함으로써 면판(A)이 소정의 운동을 하로록 안내한다.The correction cam K has R, G, and B cam surfaces r, g, and b according to the landing arcs of the R, G, and B beams, and the guide roller R has a corresponding cam surface when forming each phosphor. By contacting r, g, and b), the face plate A guides the predetermined movement downward.

본 고안의 의하면 제4도에 보인 바와 같이 이 보정캠(K)의 각 캠면(r, g, b)이 지자기에 의한 편심거리()만큼 편심설치된다.According to the present invention, as shown in FIG. 4, each cam surface r, g, b of the correction cam K has an eccentric distance ( Installed eccentrically)

즉 도면에서 지자기에 의한 전체 화면의 편심인인 경우, 보정캠(K)의 각 캠면(r, g, b)도 동일한 방향으로 이 편심거리() 만큼 편심설치되는 것이다.In other words, the eccentricity of the entire screen In this case, each cam surface r, g, b of the correction cam K also has this eccentric distance ( Eccentricity is installed.

이것은 가이드롤러(R)의 아암(arm) 길이가 이만큼 연장 또는 단축되거나, 보정캠(K)의 각 캠면(r, g, b)이 이만큼 일률적으로 깊어지거나 얕아지는 것을 의미한다.This is because the arm length of the guide roller (R) Extend or shorten by each cam surface (r, g, b) of the correction cam (K) As much as it means deepening or shallowing uniformly.

이에따라 제5도에 도시된 바와같이 각 전자빔(R, G, B) 또는 노광광의 랜딩패턴도 일률적으로만큼 편심되어 형성된다.Accordingly, as shown in FIG. 5, the landing patterns of the respective electron beams R, G, and B or the exposure light are also uniformly As eccentrically formed.

결과적으로 본 고안에 의하면 별도의 지자기 보정렌즈(Lg)없이도 지자기 보정이 가능하게 된다.As a result, according to the present invention, geomagnetic correction is possible without a separate geomagnetic correction lens (Lg).

그러므로 본 고안은 노광장치의 간결화및 이에따른 칼라브라운관의 생산성향상에 큰 효과가 있다.Therefore, the present invention has a great effect of simplifying the exposure apparatus and consequently improving the productivity of the color brown tube.

Claims (1)

전자빔의 수직왜곡을 모사하도록 패널을 이동시키는 보정캠이 구비된 노광장치에 있어서, 상기 보정캠(K)의 캠면(r, g, b)이 각각 지자기에 의한 화면의 편심거리()만큼 편심설치되는 것을 특징으로 하는 브라운관 노광장치.An exposure apparatus having a correction cam for moving a panel to simulate vertical distortion of an electron beam, wherein the cam surfaces r, g, and b of the correction cam K each have an eccentric distance of the screen caused by a geomagnetism. CRT exposure apparatus characterized in that the eccentric installation.
KR2019930020183U 1993-09-28 1993-09-28 Exposing apparatus for braun tube KR200147965Y1 (en)

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Application Number Priority Date Filing Date Title
KR2019930020183U KR200147965Y1 (en) 1993-09-28 1993-09-28 Exposing apparatus for braun tube

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Application Number Priority Date Filing Date Title
KR2019930020183U KR200147965Y1 (en) 1993-09-28 1993-09-28 Exposing apparatus for braun tube

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KR950009917U KR950009917U (en) 1995-04-21
KR200147965Y1 true KR200147965Y1 (en) 1999-07-01

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