KR910006047B1 - Established method of a fluorescent screen of color picture tube - Google Patents
Established method of a fluorescent screen of color picture tube Download PDFInfo
- Publication number
- KR910006047B1 KR910006047B1 KR1019880013929A KR880013929A KR910006047B1 KR 910006047 B1 KR910006047 B1 KR 910006047B1 KR 1019880013929 A KR1019880013929 A KR 1019880013929A KR 880013929 A KR880013929 A KR 880013929A KR 910006047 B1 KR910006047 B1 KR 910006047B1
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- KR
- South Korea
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- fluorescent film
- picture tube
- color picture
- fluorescent screen
- established method
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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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
Abstract
내용 없음.No content.
Description
본 발명은 칼라 브라운관의 형광막 형성방법에 관한 것으로서 특히 패널유리면에 대한 형광막의 접착력을 증강시키기 위한 별도의 하도액(下塗液)도포공정이 생략될 수 있도록 하는 방법에 관한 것이다. 하도액의 주요 성분으 P.V.A(Poly Vinyle Alchol)로서, 패널유리면에 부착되었을 때 에스테르화 반응을 일으킴으로써 유리표면의 시라놀(Silanole)기(基)와 공유결합을 하게되며, 아울러 빛에 노광(露光) 되었을때 경화되는 성질을 가진다. 이러한 하도액은, 형광막과 패널내면 사이에 개재되어 패널내면에 대한 형광막의 부착력을 강화시키는 것이나, 그 자체가 패널유리내면(특히 패널의 가장자리 연부 내측면)에서 들뜨게 됨으로 말미암아 증착 알미늄의 부풀어 오름을 야기시킨다. 이는 브라운관내의 이물(異物)을 가중시키는 것으로서 브라운관의 성능에 영향을 미침은 물론이다.The present invention relates to a method for forming a fluorescent film of a color CRT, and more particularly, to a method for allowing a separate undercoat coating step to enhance adhesion of the fluorescent film to a panel glass surface can be omitted. PVA (Poly Vinyle Alchol) is the main component of the coating solution, and when it is attached to the panel glass surface, it causes an esterification reaction to covalently bond with the silanole group on the glass surface and expose it to light. It has the property of hardening when glare. Such an undercoating solution is interposed between the fluorescent film and the inner surface of the panel to strengthen the adhesion of the fluorescent film to the inner surface of the panel, but is itself lifted from the inner surface of the panel glass (especially inside the edge edge of the panel), thereby swelling the deposited aluminum. Cause. This adds to the foreign matter in the CRT and, of course, affects the CRT performance.
따라서 본 발명은 상기한 바와같은 브라운관 성능저하의 한 유인을 효율적으로 저감시킬 수 있는 칼라 블운관의 형광막 형성방법을 제공함에 그 목적이 있다.Accordingly, an object of the present invention is to provide a method for forming a fluorescent film of a color blown tube which can effectively reduce the inducement of the reduction in CRT performance as described above.
또한 본 발명은 공정의 단축으로서 생산성 향상 및 공정관리의 편의성을 도모할 수 있는 칼라 브라운관의 형광막 형성방법을 제공함에 그 다른 목적이 있다.Another object of the present invention is to provide a method for forming a fluorescent film of a color CRT tube which can improve productivity and convenience of process management as a shortening process.
상기의 목적들을 달성하기 위하여 본 발명은, 블랙매트릭스 형성공정과 형광막 형성 공정사이의 하도액 도포 및 건조, 노광,세정을 제거하는 대신에, 상기 형광막 형성공정에 사용되는 형광체 및 P.V.A 순수(純水)등의 형광체 조합액에 실리카켈(Silica Gel)이 함유된 접착제를 조합시킴으로써 패널내면에 형성되는 형광막이 일정한 접착력으로 부착될 수 있도록 하는 점이 특징이 있다.In order to achieve the above objects, the present invention, instead of removing the coating and drying, exposure, and cleaning between the black matrix forming process and the fluorescent film forming process, the phosphor and PVA pure water used in the fluorescent film forming process ( By combining an adhesive containing silica gel with a phosphor mixture such as water and the like, the fluorescent film formed on the inner surface of the panel can be attached with a certain adhesive strength.
즉 본 발명은 별도로 수행되었던 하도액 도포 작업자체를 생략하며, 대신에 형광막 자체가 패널유리면에 대하여 일정한 강도의 접착력으로서 부착될 수 있도록 하기위하여 별도의 접착제를 형광체의 조합액에 포함시키도록 하는 것이다. 그러나 형광체 조합액에 포함될 수 있는 접착제의 조건 즉, 형광체의 발광율을 저해하지 않아야 하는 등의 조건을 만족시켜야 하기 때문에 접착제의 소재가 다각적으로 검토되어야 한다. 이러한 조건을 고려한 본 발명자의 실험에 의하면 실리카겔(Silica Gel)을 주성분으로 하는 접착제가 가장 적절한 것으로 나타났는바, 본 발명자의 실험에 사용된 실리카가겔 계열의 접착제는 LUDOX-AM과 C-72의 상품명으로 통용되는 것이었다. 이와같은 실리카겔 타입의 접착제를 형광체 조합액에 일정량 투입한 후에 형광막 도포공정하에 도포한 결과 패널내면에 대한 형광막의 접착력이 상당히 양호 하였다.In other words, the present invention omits the coating agent applied body, which was performed separately, and instead includes a separate adhesive in the combination solution of the phosphor so that the fluorescent film itself can be attached with a certain strength of adhesion to the panel glass surface. will be. However, since the conditions of the adhesive which can be included in the phosphor combination solution, that is, the conditions such as not impairing the emission rate of the phosphor, must be satisfied, the material of the adhesive should be examined in various ways. According to the experiments of the present inventors considering these conditions, the adhesive having the main component of silica gel was found to be most suitable. The silica-gel type adhesives used in the experiments of the present inventors were LUDOX-AM and C-72. It was commonly used as a brand name. After a certain amount of the silica gel-type adhesive was added to the phosphor combination solution and applied under a fluorescent film coating process, the adhesion of the fluorescent film to the inner surface of the panel was quite good.
이와같이 본 발명에 의하면 형광막이 패널내면에 충분한 접착력으로서 부착되는데 실리카겔을 접착력에 의해서 뿐만아니라, 형광체 조합액에 통상적으로 함유된 P.V.A을 공유결합력을 도움에 의해서 접착력이 더욱 강화되기 때문인 것이다.As described above, according to the present invention, the fluorescent film is attached to the inner surface of the panel with sufficient adhesive strength because the adhesive strength is further enhanced not only by the adhesion of the silica gel but also by the covalent bonding force of P.V.A, which is usually contained in the phosphor combination solution.
따라서 별도의 하도액 즉, 패널내면과 형광막 사이에 개재되어 이들 양자간의 접착력을 강화시켜주는 접착소재가 불필요하게 되는 바, 본 발명에 의해 통상의 형광막 제작 공정들 중에서 하도액 도포 공정을 생략할 수 있게 된다. 이와같이 되면 공정의 단축으로 생산성을 향상시킬 수 있음과 동시에, 이에 소요되었던 노동력이 절감됨으로써 제조경비를 절감할 수 있게 된다. 특히 종래의 하도액에 의해 형성된 막의 들뜸에 의해 야기 되었던 증착 알미늄층의 박리현상이 방지됨으로써 브라운관의 성능이 이에 의해 저하되는 일이 없게 된다.Therefore, a separate coating material, that is, an adhesive material interposed between the inner surface of the panel and the fluorescent film to strengthen the adhesion between the two is unnecessary, and according to the present invention, the coating process of the coating solution is omitted from the conventional fluorescent film manufacturing processes. You can do it. In this way, productivity can be improved by shortening the process, and at the same time, labor cost is reduced, thereby reducing manufacturing costs. In particular, the peeling phenomenon of the deposited aluminum layer caused by the lifting of the film formed by the conventional undercoat liquid is prevented, so that the performance of the CRT is not deteriorated thereby.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019880013929A KR910006047B1 (en) | 1988-10-25 | 1988-10-25 | Established method of a fluorescent screen of color picture tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019880013929A KR910006047B1 (en) | 1988-10-25 | 1988-10-25 | Established method of a fluorescent screen of color picture tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR900007025A KR900007025A (en) | 1990-05-09 |
| KR910006047B1 true KR910006047B1 (en) | 1991-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019880013929A KR910006047B1 (en) | 1988-10-25 | 1988-10-25 | Established method of a fluorescent screen of color picture tube |
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| Country | Link |
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| KR (1) | KR910006047B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7234391B2 (en) | 2002-07-19 | 2007-06-26 | Samsung Electronics Co., Ltd. | Bread maker |
| KR101852305B1 (en) * | 2017-08-24 | 2018-04-25 | 국방기술품질원 | Spoke and Non-Pneumatic Tire using the same |
-
1988
- 1988-10-25 KR KR1019880013929A patent/KR910006047B1/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7234391B2 (en) | 2002-07-19 | 2007-06-26 | Samsung Electronics Co., Ltd. | Bread maker |
| KR101852305B1 (en) * | 2017-08-24 | 2018-04-25 | 국방기술품질원 | Spoke and Non-Pneumatic Tire using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| KR900007025A (en) | 1990-05-09 |
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