CN1057924A - 制造彩色阴极射线管屏幕的方法 - Google Patents
制造彩色阴极射线管屏幕的方法 Download PDFInfo
- Publication number
- CN1057924A CN1057924A CN91104160A CN91104160A CN1057924A CN 1057924 A CN1057924 A CN 1057924A CN 91104160 A CN91104160 A CN 91104160A CN 91104160 A CN91104160 A CN 91104160A CN 1057924 A CN1057924 A CN 1057924A
- Authority
- CN
- China
- Prior art keywords
- screen
- layer
- thermal decomposition
- coated
- ray tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
- H01J29/18—Luminescent screens
- H01J29/28—Luminescent screens with protective, conductive or reflective layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/86—Vessels; Containers; Vacuum locks
- H01J29/88—Vessels; Containers; Vacuum locks provided with coatings on the walls thereof; Selection of materials for the coatings
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
Abstract
一种制造彩色阴极射线管屏的方法,它包括下列
步骤:把粘结加强层4涂覆在屏板P的屏板裙部S
的内表面上;涂覆黑色阵列条2和荧光粉条1;在把
薄金属膜3涂覆在最终构层之前把热分解缓和层5
涂覆在屏板裙部里的所说粘结加强层4上。由于采
用了包含在热分解缓和层中的丙烯乳胶而延缓了聚
乙烯醇的热分散,在焙烧工序的过程中防止了薄金属
膜的鼓起和脱落,由此减少了由于金属层的碎片的脱
落而导致的劣质产品。
Description
本发明涉及一种制造彩色阴极射线管屏幕的方法,更具体地说,涉及一种能防止屏幕的金属膜鼓起的制造彩色阴极射线管屏的方法。
如图1所示,在彩色阴极射线管屏板的内底面上形成的屏幕具有多层的薄膜结构,它包括:在屏板P内底面上交替安排的许多红、绿和兰色的荧光粉条或点1;隔开各自邻近的不同色荧光粉条并吸收从屏板P外面进入光的黑色阵列条2;以及在该结构最外表面上形成的薄金属膜3。
在这种情况下,荧光粉条1和黑色阵列条2实际上都在同一平面上形成,并且,薄金属膜3覆盖住荧光粉条1和黑色阵列条2。在未加说明的附图中的标字“S”表示屏板的裙部。
然而,上述的多层结构是制造屏幕过程中形成的全部层中的一部分,采用燃烧处理和分解以及通过所谓的蚀刻和焙烧工艺把其余物去除掉。
现在进行更具体的说明。开始,在屏板的整个底面上涂覆预涂覆剂,并由此形成一个作为最底层的粘结加强层。尔后,在粘结加强层上涂覆一层光敏树脂膜,它是为了用光刻照相术的方法形成黑色阵列条的,然后在显影工艺中把该膜去除,显影工艺是黑色阵列条制造工艺中的最后一道工序。
然后,在各自邻近黑色阵列条之间的空隙上交替地形成不同色的荧光粉条,此后,在它们的表面上覆盖膜剂并干燥,这样形成一膜层。然后,由铝这样金属制备的一种金属膜最后涂覆在该得到的结构上并加以覆盖。该膜层是为了防止金属膜侵入荧光粉条和改善金属膜的平滑度的。
这样半成品屏幕的膜层和最底层的粘结加强层通过在阴极射线管制造过程中的焙烧工艺而被去除掉。
在屏幕的上述制造工艺流程中的焙烧工艺中,存在使金属膜变得鼓起的影响,特别是在屏板裙部上形成的部分,即屏幕的周边部分。这个理由是,例如由于高温加热预涂覆剂的急速分解,由此产生的气体引起金属膜变得鼓起。
鼓起的金属膜可能脱落而变成碎片,该金属膜碎片成为杂质而必然保留在阴极射线管内,它们会导致电子枪之间严重打火和荫罩孔的堵塞现象。
本发明的目的是提供一种能克服上述存在问题的彩色阴极射线管屏幕的制造方法。
为了达到此目的,本发明的特征在于,在制造彩色阴极射线管屏幕的方法中有一个在最底层粘结加强层上涂覆黑色阵列条和荧光粉条的步骤,该加强层由主要成分为聚乙烯醇的预涂覆剂制成;在形成薄金属膜步骤之前有一个形成膜层的步骤;在形成薄金属膜步骤之前有一个在屏板裙部内的粘结加强层上涂覆热分解缓和层的步骤,该缓和层可缓和作为最底层粘结加强层主要成分的聚乙烯醇的急速热分解。
在本发明中采用的这种热分解缓和层是由下列配料制备的:丙烯乳胶、2%的聚乙烯醇、草酸铵盐和纯水,按重量的大致比率为1∶1∶1∶21。而聚乙烯醇是粘结剂,丙烯乳胶可减少聚乙烯醇的热分解速度。草酸铵盐是为了在屏幕的金属膜上产生微细孔的附加成分。
图1是阴极射线管屏幕的局部放大图的屏板剖面图;
图2A至2D分别图示出按照本发明的屏幕制造过程。
现在通过实施例参照有关附图详细说明本发明。
(A)如图2A所示,用传统方法把主要成分为聚乙烯醇的最底层粘结加强层4涂覆在阴极射线管屏板P的内表面和屏板裙部S的内表面上,并且,把由石墨制备的黑色阵列条2和由各种彩色荧光粉材料组成的荧光粉条1涂覆在屏板P内表面里的粘结加强层4上。
(B)然后,如图2B所示,把热分解缓和层5涂覆到屏板P的屏板裙部S上的粘结加强层4上。这里采用的热分解缓和层的材料是下列配料的混合物:按重量比率大致为1∶1∶1∶21的丙烯乳胶、2%聚乙烯醇、草酸铵盐和纯水。在这里,聚乙烯醇作为粘结剂,丙烯乳胶减少聚乙烯醇的热分解速度。另外,作为附加成分的草酸铵盐,由于它的针状结晶结构,可在屏幕最上层的薄金属膜的外围边缘上形成许多微细孔。
(C)此外,如图2C所示,用传统方法把有机材料制备的膜层6涂覆在其面上形成了黑色阵列条2和荧光粉条1的屏板内底面上,而不涂在其面上形成了热分解缓和层5的屏板裙部S上。
(D)如图2D所示,把由铝制备的薄金属膜层3涂覆在热分解缓和层5和膜层6的全部表面上。
(E)在完成屏幕的多层形成系列步骤之后,经过焙烧方式获得如图1所示的最终完好的屏幕。
在经过上述制造工序获得的屏幕中,最底层的粘结加强层、热分解缓和层和有机材料层通过焙烧步骤被分解成有机气体并被去除掉。通过经焙烧工序的最终屏幕的放大剖面图,可以进一步说明,上述的有机物层完全被去除掉了,并发现没有由于在屏板上特别是在屏板裙部上存在有机气体而使金属膜鼓起。
这是因为在焙烧工序中,当有机材料层经过焙烧时,由包含在热分解缓和层中的丙烯乳胶使聚乙烯醇的热分解发生出现延时。另外,因为包含在热分解缓和层中的针状结晶草酸铵盐在薄金属层上形成微细孔,在热分解过程中产生的有机气体能够容易地被排出。
如上所述,通过本发明人的重复实验,获得了用在本发明中用于热分解缓和的化学剂,并且,通过有效地防止在屏板裙部上形成的薄金属膜的鼓起和脱落,明显地减少了劣质产品。
Claims (4)
1、一种制造彩色阴极射线管屏幕的方法,包括下列步骤:
把由主要成分是聚乙烯醇的预涂覆剂制备的粘结加强层(4)涂覆在屏板(p)的内表面和屏板裙部(S)的内表面上;
把黑色阵列条(2)和荧光粉条(1)涂覆在屏板(p)里的所说的粘结加强层(4)上;
把热分解缓和层(5)涂覆到屏板裙部(S)里的所说粘结加强层(4)上,以便缓和在随后的焙烧步骤中所说的粘结加强层(4)的聚乙烯醇的急速热分解;
把膜层(6)涂覆在黑色阵列条(2)和荧光粉条(1)之上;
把薄金属膜(3)涂覆在最终的构层上;和
把最终的构层焙烧,由此去除掉所说的粘结加强层(4)、膜层(6)和热分解缓和层(5)。
2、按照权利要求1的制造彩色阴极射线管屏幕的方法,其特征在于所说的热分解缓和层(5)包括聚乙烯醇和丙烯乳胶。
3、按照权利要求2的制造彩色阴极射线管屏幕的方法,其特征在于所说的热分解缓和层(5)还包括作为其中的一种配料的草酸铵盐。
4、按照权利要求3的制造彩色阴极射线管屏幕的方法,其特征在于所说的热分解缓和层(5)包括丙烯乳胶、2%聚乙烯醇、草酸铵盐和纯水,其重量比约为1∶1∶1∶21。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10099/90 | 1990-07-04 | ||
KR1019900010099A KR930001187B1 (ko) | 1990-07-04 | 1990-07-04 | 칼라 음극선관의 스크린 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1057924A true CN1057924A (zh) | 1992-01-15 |
CN1027114C CN1027114C (zh) | 1994-12-21 |
Family
ID=19300886
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN91104160A Expired - Fee Related CN1027114C (zh) | 1990-07-04 | 1991-06-20 | 制造彩色阴极射线管屏幕的方法 |
Country Status (3)
Country | Link |
---|---|
US (1) | US5326588A (zh) |
KR (1) | KR930001187B1 (zh) |
CN (1) | CN1027114C (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103242837A (zh) * | 2013-05-23 | 2013-08-14 | 北京化工大学 | 具有晶面取向性的多酸微纳米晶体荧光薄膜及其制备方法 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR950004395B1 (ko) * | 1992-12-16 | 1995-04-28 | 삼성전관주식회사 | 개선된 스크린을 갖는 칼라 음극선관과 그 제조 방법 |
CA2646266A1 (en) * | 2006-04-10 | 2007-10-25 | Nitromed, Inc. | Assessment of heart failure risk using genetic assessment of g-protein beta-3 subunit polymorphism |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3940508A (en) * | 1974-09-16 | 1976-02-24 | Westinghouse Electric Corporation | Precoating color television picture tube faceplate panels to promote phosphor pattern adherence |
JPS5596536A (en) * | 1979-01-19 | 1980-07-22 | Hitachi Ltd | Fluorescent face forming method |
US4339475A (en) * | 1979-03-23 | 1982-07-13 | Hitachi, Ltd. | Method of forming a fluorescent screen for cathode-ray tube |
FR2622050B1 (fr) * | 1987-10-20 | 1990-01-26 | Videocolor | Procede de metallisation d'un ecran luminescent |
-
1990
- 1990-07-04 KR KR1019900010099A patent/KR930001187B1/ko not_active IP Right Cessation
-
1991
- 1991-06-20 CN CN91104160A patent/CN1027114C/zh not_active Expired - Fee Related
- 1991-07-03 US US07/725,073 patent/US5326588A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103242837A (zh) * | 2013-05-23 | 2013-08-14 | 北京化工大学 | 具有晶面取向性的多酸微纳米晶体荧光薄膜及其制备方法 |
CN103242837B (zh) * | 2013-05-23 | 2015-05-27 | 北京化工大学 | 具有晶面取向性的多酸微纳米晶体荧光薄膜及其制备方法 |
Also Published As
Publication number | Publication date |
---|---|
CN1027114C (zh) | 1994-12-21 |
KR930001187B1 (ko) | 1993-02-20 |
KR920003370A (ko) | 1992-02-29 |
US5326588A (en) | 1994-07-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4707635A (en) | Cathode ray tube having a fluorescent layer with varying amounts of silica | |
EP0187860B1 (en) | Cathode ray tube | |
CN1027114C (zh) | 制造彩色阴极射线管屏幕的方法 | |
EP0587123B1 (en) | Pigment-attached blue-emitting phosphor and color cathode-ray tube | |
JP2753439B2 (ja) | 改善されたスクリーンを有するカラー陰極線管とその製造方法 | |
US4725255A (en) | Gas discharge display device | |
KR100197579B1 (ko) | 이중층 형광막 및 그의 제조방법 | |
US5290648A (en) | Method for manufacturing a screen for a cathode ray tube | |
EP0445298A1 (en) | Color cathode-ray tube | |
JPH08293268A (ja) | カラー陰極線管の蛍光膜 | |
JPH0778561A (ja) | 蛍光面の形成方法 | |
KR920006868Y1 (ko) | 프로젝터용 음극선관 | |
KR950001744B1 (ko) | 필르밍액 조성물 및 이를 사용하여 제조된 고휘도 음극선관 | |
US4533610A (en) | Method of manufacture of a color television tube having low screen reflectance for ambient light | |
FI68479C (fi) | Foerfarande foer framstaellning av en lysaemnessuspension | |
KR100317890B1 (ko) | 컬러음극선관및그제조방법 | |
JPS6241371B2 (zh) | ||
EP0739024A1 (en) | Process for manufacturing fluorescent film of color Braun tube | |
SU336723A1 (ru) | Способ изготовления экрана электроннолучевыхтрубок | |
JPH06243805A (ja) | 陰極線管 | |
KR19980071774A (ko) | 칼라음극선관 및 칼라음극선관의 형광면의 제조방법 | |
EP1098348A2 (en) | Color cathode ray tube and manufacture for contrast improvement | |
DE1812924A1 (de) | Farbfernsehbildroehre | |
JPS6313231A (ja) | カラ−陰極線管の螢光面の形成方法 | |
JPH0696686A (ja) | 陰極線管用蛍光面とその製法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
OR01 | Other related matters | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 19941221 |