KR950010662Y1 - Exposure device for crt - Google Patents
Exposure device for crt Download PDFInfo
- Publication number
- KR950010662Y1 KR950010662Y1 KR92027465U KR920027465U KR950010662Y1 KR 950010662 Y1 KR950010662 Y1 KR 950010662Y1 KR 92027465 U KR92027465 U KR 92027465U KR 920027465 U KR920027465 U KR 920027465U KR 950010662 Y1 KR950010662 Y1 KR 950010662Y1
- Authority
- KR
- South Korea
- Prior art keywords
- light
- exposure apparatus
- exposure
- stripe
- crt
- Prior art date
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Classifications
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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
- H01J9/2272—Devices for carrying out the processes, e.g. light houses
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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
- H01J9/2278—Application of light absorbing material, e.g. between the luminescent areas
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- 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
- H01J2209/015—Machines therefor
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
Abstract
내용 없음.No content.
Description
제1a도는 종래의 노광장치를 개략적으로 도시하는 측단면도.1A is a side cross-sectional view schematically showing a conventional exposure apparatus.
제1b도는 종래의 노광장치로 노광시킨 스트리아프를 예시적으로 도시하는 확대평면도.FIG. 1B is an enlarged plan view exemplarily showing a stripe exposed by a conventional exposure apparatus. FIG.
제2도는 본 고안의 노광장치를 도시하는 평면도.2 is a plan view showing an exposure apparatus of the present invention.
제3a도는 본 고안의 노광장치를 사용하는 상태를 도시하는 측단면도.Figure 3a is a side cross-sectional view showing a state using the exposure apparatus of the present invention.
제3b는 본 고안의 노광장치를 사용하는 노광시킨 스트라이프를 예시적으로 도시하는 확대평면도이다.3B is an enlarged plan view exemplarily showing an exposed stripe using the exposure apparatus of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 광원 2 : 판텔(Panel)1: light source 2: panel
3 : 섀도우마스크(Shadow Mask) 4 : 스트라이프(Stripe)3: Shadow Mask 4: Stripe
5 : 면판 10 : 차광판5: face plate 10: shading plate
10' : 노광개구10 ': exposure opening
본 고안은 노광장치, 다욱 상세히는 노광작업을 더욱 정확하게는 수행할 수 있는 노광장치에 관한 것이다.The present invention relates to an exposure apparatus, and more particularly to an exposure apparatus capable of performing an exposure operation more accurately.
판넬(Panel)의 내면에는 적색, 녹색, 청색의 형광체 스트라이프(Stripe)와 형광체스트라이프의 상호간에 무반사흑연도료인 블랙스트라이프(Black Stripe)를 노광공정을 통하여 형성하게 되는데,On the inner surface of the panel, black stripe, which is an antireflective graphite paint, is formed between the red, green, and blue phosphor strips and the phosphor strips through an exposure process.
이 스트라이프의 폭의 균일성과 직선성은 브라운관의 품질을 결정하는 중요한 요소이다.The uniformity and linearity of the stripe width is an important factor in determining the quality of the CRT.
특히 판넬의 가장자리부에 형성되는 스트라이프는 광(光)의 직진상으로 인하여 광량이 상이하여 불균일한 두께의 스트라아프를 형성하고 섀도우마스크와 판넬간의 측방간격으로 광원이 진입하는 경우, 난반사로 스트라이프가 직선상으로 형성되지 않은 문제점이 있다.In particular, the stripe formed at the edge of the panel has a different amount of light due to the straight phase of the light to form a stripe of uneven thickness, and when the light source enters the lateral gap between the shadow mask and the panel, There is a problem that is not formed in a straight line.
이러한 종래의 노광장치가 제1a도에 개략적으로 도시된다.Such a conventional exposure apparatus is schematically shown in FIG. 1A.
노광대(6) 상방의 면판(5)상에 안치되는 판넬(2)의 후방에는 적의의 간극을 두고 프레임(도시않음)에 부착된 섀도우마스크(3)를 일종의 노광필름을 사용하여 광원(1)에서 나오는 광에 의하여 노광한다.In the rear of the panel 2 placed on the face plate 5 above the exposure table 6, a shadow mask 3 attached to a frame (not shown) with an appropriate gap is used as a light source 1 using a kind of exposure film. It is exposed by the light from ().
이상과 같은 종래의 노광장치에 있어서는 판넬(2)과 섀도우마스크(3)사이의 축방간극(T)으로 빛이 들어가게 되어 판넬(2)내면에서 난반사되기 때문에 부분적인 광속(光束)의 증대를 유발하여 제1b도와 같은 스트라이프(4)를 형성시킨다.In the conventional exposure apparatus as described above, light enters into the axial gap T between the panel 2 and the shadow mask 3 and is diffusely reflected from the inner surface of the panel 2, causing partial luminous flux. As a result, a stripe 4 as shown in FIG. 1B is formed.
따라서, 브라운관의 해상도와 화질에 지대한 영향을 끼치게 되는 것이다.Therefore, the resolution and image quality of the CRT will be greatly affected.
본 고안의 노광장치는 상술한 종래의 문제점을 감안하여 빛의 균일한 분산을 유도할 수 있는 노광장치를 제공한다.The exposure apparatus of the present invention provides an exposure apparatus capable of inducing uniform dispersion of light in view of the above-described conventional problems.
이러한 목적을 달성하기 위하여 본 고안에서는 면판상에 상술한 광의 측방분산을 막을 수 있는 차광판을 가지는 것을 특징으로 한다.In order to achieve the above object, the present invention is characterized by having a light shielding plate capable of preventing the lateral dispersion of the above-described light on the face plate.
이하 첨부된 도면을 참조로 하여 본 고안의 바람직한 하나의 실시예를 상세히 설명한다. 도면에 있어서 종래의 기술과 동일한 부분은 동일한 도면부호를 사용한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same parts as in the prior art use the same reference numerals.
제2도는 본 고안의 노광장치의 평면도로서 면판(5)의 중앙부에는 개략 노광시키고자 하는 브라운관의 종류에 따른 크기와 대응하는 크기의 사각형상의 차광판(10)을 부착한다.FIG. 2 is a plan view of the exposure apparatus of the present invention, and a rectangular light shielding plate 10 of a size corresponding to the size of the CRT to be exposed is attached to the center portion of the face plate 5.
이 차광판(10)은 바람직하게는 빛을 흡수하는 소재로서 만든다.This light shielding plate 10 is preferably made of a material which absorbs light.
차공판의 내측 노광개구(10')의 크기는 광원으로부터의 빛의 섀도우마스크(3)의 내측 가장자리까지만 미치도록 하는 크기로서 한다.The size of the inner exposure opening 10 'of the aperture plate is such that it extends only to the inner edge of the shadow mask 3 of the light from the light source.
노광개구(10')의 4 모서리에는 안쪽으로 약간의 곡률반경을 가지고 만족한 보정부(11)를 가진다. 도면에서는 가시적으로 보정부(11)가 과장되게 도시되어 있지만 실제적인 보정부(11)는 거의 미미한 크기여서 감지하기 힘든 정도일 것이다.Four corners of the exposure opening 10 'have a satisfactory correction section 11 with a slight curvature radius inward. Although the corrector 11 is visually exaggerated in the drawing, the actual corrector 11 is almost insignificant and may be difficult to detect.
이 보정부(11)의 형성목적은 가장자리부는 통상 광원으로부터 도달거리가 길기 때문에 광량이 비교적 중앙부보다 적고 가장자리부에서의 광흡수에 의한 광량의 저하가 있기 때문에 이를 보상하기 위한 것이다.The purpose of the formation of the correction unit 11 is to compensate for the fact that the light portion is relatively smaller than the center portion because the edge portion usually has a long distance from the light source, and the light amount decreases due to light absorption at the edge portion.
상술한 구성의 차광판(10)의 설치는 노광작업시에 판넬(2)과 섀도우마스크(3)의 간극(T)사이로의 광의 진입을 차단하고 모서리부에 부족한 광량을 보상하기 때문에 제3b도와 같이 거의 직선상의 소망하는 스트라이프(4')를 얻을 수 있다.Since the installation of the light shielding plate 10 having the above-described configuration blocks light entering into the gap T between the panel 2 and the shadow mask 3 during the exposure operation and compensates for the amount of light insufficient at the corners, as shown in FIG. 3B. The desired stripe 4 'which is almost straight can be obtained.
본 고안에 따른 노광장치은 간단한 구조의 차광판의 부착으로서 직선상의 스트리아프를 제공하여 화질의 향상을 도모할 수 있는 효과를 가진다.The exposure apparatus according to the present invention has the effect of improving the image quality by providing a straight stripe as the attachment of a light shielding plate of a simple structure.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR92027465U KR950010662Y1 (en) | 1992-12-28 | 1992-12-28 | Exposure device for crt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR92027465U KR950010662Y1 (en) | 1992-12-28 | 1992-12-28 | Exposure device for crt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR940017588U KR940017588U (en) | 1994-07-28 |
| KR950010662Y1 true KR950010662Y1 (en) | 1995-12-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR92027465U KR950010662Y1 (en) | 1992-12-28 | 1992-12-28 | Exposure device for crt |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR950010662Y1 (en) |
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1992
- 1992-12-28 KR KR92027465U patent/KR950010662Y1/en not_active IP Right Cessation
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| Publication number | Publication date |
|---|---|
| KR940017588U (en) | 1994-07-28 |
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