KR100300326B1 - Phosphor slurry composition for field emission display - Google Patents
Phosphor slurry composition for field emission display Download PDFInfo
- Publication number
- KR100300326B1 KR100300326B1 KR1019990011046A KR19990011046A KR100300326B1 KR 100300326 B1 KR100300326 B1 KR 100300326B1 KR 1019990011046 A KR1019990011046 A KR 1019990011046A KR 19990011046 A KR19990011046 A KR 19990011046A KR 100300326 B1 KR100300326 B1 KR 100300326B1
- Authority
- KR
- South Korea
- Prior art keywords
- phosphor
- coated
- flat panel
- grams
- pure water
- Prior art date
Links
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims abstract description 75
- 239000002002 slurry Substances 0.000 title claims abstract description 33
- 239000000203 mixture Substances 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000002270 dispersing agent Substances 0.000 claims abstract description 14
- 238000002156 mixing Methods 0.000 claims abstract description 10
- 239000003504 photosensitizing agent Substances 0.000 claims abstract description 9
- 108010010803 Gelatin Proteins 0.000 claims abstract description 8
- 229920000159 gelatin Polymers 0.000 claims abstract description 8
- 239000008273 gelatin Substances 0.000 claims abstract description 8
- 235000019322 gelatine Nutrition 0.000 claims abstract description 8
- 235000011852 gelatine desserts Nutrition 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims abstract description 4
- 239000002562 thickening agent Substances 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 description 8
- 229920002451 polyvinyl alcohol Polymers 0.000 description 8
- JHWIEAWILPSRMU-UHFFFAOYSA-N 2-methyl-3-pyrimidin-4-ylpropanoic acid Chemical compound OC(=O)C(C)CC1=CC=NC=N1 JHWIEAWILPSRMU-UHFFFAOYSA-N 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- 229920000642 polymer Polymers 0.000 description 6
- 239000000654 additive Substances 0.000 description 4
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 4
- -1 polyoxypropylene Polymers 0.000 description 4
- 159000000000 sodium salts Chemical class 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 3
- 229920001213 Polysorbate 20 Polymers 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 235000010486 polyoxyethylene sorbitan monolaurate Nutrition 0.000 description 3
- 239000000256 polyoxyethylene sorbitan monolaurate Substances 0.000 description 3
- 229920001451 polypropylene glycol Polymers 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 235000010489 acacia gum Nutrition 0.000 description 2
- 239000001785 acacia senegal l. willd gum Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000009125 cardiac resynchronization therapy Methods 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000001962 electrophoresis Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007613 slurry method Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
- C09K11/025—Use of particular materials as binders, particle coatings or suspension media therefor non-luminescent particle coatings or suspension media
-
- 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
- H01J29/22—Luminescent screens characterised by the binder or adhesive for securing the luminescent material to its support, e.g. vessel
- H01J29/225—Luminescent screens characterised by the binder or adhesive for securing the luminescent material to its support, e.g. vessel photosensitive adhesive
-
- 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
- H01J29/30—Luminescent screens with luminescent material discontinuously arranged, e.g. in dots, in lines
- H01J29/32—Luminescent screens with luminescent material discontinuously arranged, e.g. in dots, in lines with adjacent dots or lines of different luminescent material, e.g. for colour television
- H01J29/327—Black matrix materials
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Abstract
본 발명은 저전압으로 구동되는 평판 표시 장치용 형광체 슬러리액 조성물에 관한 것으로서 In2O3가 코팅된 형광체 및 증점제, 감광제, 분산제, 순수를 포함하는 형광체 슬러리액 조성물을 제공한다. 이때 상기 In2O3가 코팅된 형광체는 In2O3, 순수 및 분산제를 혼합한 후 볼밀하여 제조한 In2O3가 균일하게 분산된 용액 및 형광체, 순수 및 젤라틴을 혼합하여 제조한 젤라틴이 코팅된 형광체 용액을 혼합, 교반 및 건조하여 제조하는 것이 바람직하다.The present invention relates to a phosphor slurry composition for a flat panel display device driven at a low voltage, and provides a phosphor slurry composition including an In 2 O 3 coated phosphor and a thickener, a photosensitizer, a dispersant, and a pure water. In this case, the In 2 O 3 coated phosphor is prepared by mixing In 2 O 3 , pure water, and a dispersant, and then uniformly dispersing In 2 O 3 dispersed in a uniformly dispersed solution, phosphor, gelatin prepared by mixing pure water, and gelatin. It is preferred to prepare the coated phosphor solution by mixing, stirring and drying.
Description
[산업상 이용 분야][Industrial use]
본 발명은 평판 표시장치용 형광체 슬러리액 조성물에 관한 것으로서, 더욱 상세하게는, 전계 방출 디스플레이(Field Emission Display: FED)의 형광막을 형성하기 위한 형광체 슬러리액 조성물에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a phosphor slurry liquid composition for flat panel displays, and more particularly, to a phosphor slurry liquid composition for forming a fluorescent film of a field emission display (FED).
[종래 기술][Prior art]
평판 표시장치(Flat Panel Display, FPD)는 종래의 음극선관과 비교하여 무게가 가볍고 부피가 작을 뿐만 아니라, 대화면용 표시소자로 적합하고 전력소비가적다는 이점이 있으며, 이러한 평판 표시장치로서 액정표시장치(LCD)를 비롯하여 형광표시관(VFD), 박막(thin 또는 flat) CRT, 플라즈마 패널 디스플레이 및 전계 방출 디스플레이(Field Emission Display: FED) 등이 활발히 연구되고 있다.The flat panel display (FPD) has the advantages of being light in weight and small in volume compared to the conventional cathode ray tube, and suitable for being a display device for a large screen and low power consumption. In addition to LCDs, fluorescent display tubes (VFDs), thin or flat CRTs, plasma panel displays, and field emission displays (FEDs) are being actively studied.
이와 같은 평판 표시장치는 일반적으로 전면 플레이트, 후면 플레이트 및 상기 플레이트들의 주위를 둘러싸서 내부공간을 형성하는 측면 격벽들로 이루어져 있으며, 상기 내부공간은 전자의 방출 및 유동을 원활하게 하기 위하여 진공상태로 유지되고 있다. 상기 평판 표시장치의 동작을 도 1에 도시된 전계 방출 디스플레이(100)를 예로 하여 설명하면 다음과 같다. 전계 방출 디스플레이(100)는 전면 플레이트(20), 후면 플레이트(30) 및 상기 전면 플레이트(20)와 후면 플레이트(30)를 둘러싸고 지지하기 위한 측면 격벽(40) 및 스페이서(50)로 이루어져 있고, 그 내부는 약 1 X 10-7torr의 진공 상태로 유지되어 있다. 상기 전면 플레이트(20)는 애노드 플레이트라고도 하며 그 내측면에는 각각의 화소에 필요한 펄스 전압을 인가하기 위하여 ITO전극(60)이 스트라이프형으로 형성되어 있고, 상기 ITO전극 상에 화상을 표시하기 위한 형광체 패턴(62)이 형성되어 있다. 또한, 상기 후면 플레이트(30)는 캐소오드 플레이트라고도 하며 그 내측면에는 상기 전면 플레이트(20)에 형성된 ITO전극(62)과 직각방향으로 Ag 또는 ITO 전극(70)이 형성되어 있고, 이 전극 위에 전자를 방출하는 탄소 에미터(72)가 코팅되어 있다. 이와 같은 전계 방출 디스플레이(100)에서, 도시되지 않은 구동회로에 의하여 상기 ITO 전극들(60)(70)에 화상 신호가 인가되면 양전극 사이에 형성된 강한 전계에 의하여 탄소에미터(72)가 여기되어 전자(도시되지 않음)를 방출하며, 이렇게 방출된 전자는 진공상태로 유지된 공간을 이동하여 전면 플레이트(20)에 도포된 형광체(62)를 여기시킴으로서 가시광선을 발생시켜 화상을 표시한다.Such a flat panel display generally includes a front plate, a rear plate, and side partitions surrounding the plates to form an inner space, and the inner space is vacuumed to facilitate the emission and flow of electrons. It is maintained. The operation of the flat panel display will be described with reference to the field emission display 100 shown in FIG. 1 as an example. The field emission display 100 includes a front plate 20, a rear plate 30, and side partition walls 40 and spacers 50 for enclosing and supporting the front plate 20 and the rear plate 30. Its interior is maintained in a vacuum of about 1 X 10 -7 torr. The front plate 20 is also called an anode plate, and an inner surface of the front plate 20 has an ITO electrode 60 formed in a stripe shape to apply a pulse voltage required to each pixel, and a phosphor for displaying an image on the ITO electrode. The pattern 62 is formed. In addition, the back plate 30 is also referred to as a cathode plate, the inner surface is formed with an Ag or ITO electrode 70 in a direction perpendicular to the ITO electrode 62 formed on the front plate 20, and on this electrode A carbon emitter 72 is coated that emits electrons. In the field emission display 100, when an image signal is applied to the ITO electrodes 60 and 70 by a driving circuit (not shown), the carbon emitter 72 is excited by a strong electric field formed between both electrodes. Electrons (not shown) are emitted, and the emitted electrons move through the space maintained in a vacuum state to excite the phosphor 62 applied to the front plate 20 to generate visible light to display an image.
이와 같은 전계 방출 디스플레이(100)에 있어서, 상기 전면 플레이트에 형광체 패턴(62)을 형성하는 방법으로는 전기 영동법(Electrophoresis)과 인쇄법이 일반적으로 알려져 있다. 그러나 상기 전기 영동법은 외광 반사를 막아주는 블랙매트릭스를 형성시키기 어려워 화상의 컨트라스트가 저하되는 단점이 있으며, 인쇄법에 의하여 형광막을 형성할 경우에는 형광막이 치밀하지 못하고 두꺼워져 화상의 휘도가 저하되는 단점이 있다. 또한, CRT 등의 고전압 구동 표시장치의 경우에는 형광체 슬러리액을 제조하여 형광막을 형성하는 방법이 사용되고 있는데, 이와 같은 고전압 구동 표시 장치는 애노드에 약 25kV의 고전압이 걸리며, 패널에 ITO전극 패턴이 형성되어 있지 않는 등 저전압 구동 장치와는 그 특성이 상이하여 상기 형광체 슬러리액을 저전압 구동 장치에 사용하지 못하고 있다.In such a field emission display 100, electrophoresis and printing are generally known as a method of forming the phosphor pattern 62 on the front plate. However, the electrophoresis method has a disadvantage in that it is difficult to form a black matrix that prevents external light reflection, and thus the contrast of the image is reduced. When the fluorescent film is formed by the printing method, the fluorescent film is not dense and thick, so that the brightness of the image is reduced. There is this. In addition, in the case of a high voltage driving display device such as a CRT, a method of preparing a phosphor film by forming a phosphor slurry is used. In this high voltage driving display device, a high voltage of about 25 kV is applied to the anode, and an ITO electrode pattern is formed on the panel. Since the characteristics differ from the low voltage drive device, such as, the phosphor slurry liquid cannot be used for the low voltage drive device.
따라서 본 발명은 평판 표시장치의 형광막을 슬러리법에 의하여 형성하기 위한 형광체 슬러리액 조성물을 제공하는 것을 목적으로 한다.Accordingly, an object of the present invention is to provide a phosphor slurry liquid composition for forming a fluorescent film of a flat panel display device by a slurry method.
본 발명의 다른 목적은 1KV이하의 저전압으로 구동되는 전계 방출 디스플레이 소자에서 발광효율이 우수한 형광막을 형성하기 위한 슬러리액 조성물을 제공하는 것이다. 또한 본 발명은 ITO전극과의 부착력이 우수하고, 패터닝 작업이 용이하여, 전계 방출 디스플레이 소자의 양산성 및 형광막의 품위를 향상시킬 수 있는형광체 슬러리액 조성물을 제공하는 것을 목적으로 한다.Another object of the present invention is to provide a slurry liquid composition for forming a fluorescent film having excellent luminous efficiency in a field emission display device driven at a low voltage of 1KV or less. In addition, an object of the present invention is to provide a phosphor slurry composition which is excellent in adhesion to an ITO electrode and is easy to pattern, thereby improving mass productivity of a field emission display device and quality of a fluorescent film.
도 1은 일반적인 평판 표시장치의 구성을 설명하기 위한 단면도이다.1 is a cross-sectional view illustrating a configuration of a general flat panel display.
* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings
20: 전면 플레이트 30: 후면 플레이트 40: 격벽20: front plate 30: rear plate 40: partition wall
50: 스페이서 60, 70: ITO전극50: spacer 60, 70: ITO electrode
62: 형광체 패턴 72: 탄소 에미터62: phosphor pattern 72: carbon emitter
상기와 같은 본 발명의 목적을 달성하기 위하여, 본 발명은 In2O3가 코팅된 형광체 및 증점제, 감광제, 분산제, 순수를 포함하는 평판 표시 장치용 형광체 슬러리액 조성물을 제공하며, 이때 상기 In2O3가 코팅된 형광체는 In2O3, 순수 및 분산제를 혼합한 후, 볼밀하여 제조한 In2O3가 균일하게 분산된 용액 및 형광체, 순수 및 젤라틴을 혼합하여 제조한 젤라틴이 코팅된 형광체 용액을 제조한 후 이들을 혼합, 교반 및 건조하여 제조하는 것이 바람직하다.In order to achieve the object of the present invention as described above, the present invention provides a phosphor slurry composition for a flat panel display device comprising a phosphor coated with In 2 O 3 and a thickener, a photosensitizer, a dispersant, a pure water, wherein In 2 The O 3 coated phosphor is a mixture of In 2 O 3 , pure water and a dispersant, and then a solution prepared by uniformly dispersing In 2 O 3 and a gelatin coated phosphor prepared by mixing phosphor, pure water and gelatin. It is preferable to prepare the solutions by mixing, stirring and drying them.
이하, 본 발명을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail.
본 발명의 평판 표시장치용 형광체 슬러리액 조성물은 In2O3가 코팅된 형광체를 포함한다. 상기 형광체 슬러리액 조성물을 제조하기 위하여 먼저 다음과 같은 공정에 의하여 In2O3가 코팅된 형광체를 제조한다. 먼저 그래스 볼(glass ball)과 In2O3, 순수, 분산제를 넣고 2일 내지 4일, 바람직하게는 3일간 볼밀하여 In2O3를 균일하게 분산시킨다. 상기 분산제로는 폴리머릭카복실산의 나트륨염(sodium salt of polymeric carboxylic acid) 등을 사용할 수 있다. 또한 형광체를 순수에 넣고 교반하면서 젤라틴 또는 아라빅 검(arabic gum)을 투입하고 아세트산 등의 산으로 pH를 약 3.4로 조절하면서 형광체에 젤라틴 또는 아라빅 검을 코팅한다. 이와 같이 제조된 두 용액을 혼합하고 교반하면서 다시 아세트산 등의 산으로 pH를 약 3.4로 조절하면서 In2O3를 형광체에 코팅한 다음 필터링하여 건조한다. 이때 두 용액의 혼합비는 형광체 중량의 0.1 내지 50중량 %, 더욱 바람직하게는 1 내지 20중량 %의 In2O3가 형광체에 혼합되도록 조절하는 것이 바람직하다. In2O3가 0.1중량 %보다 작게 들어가면 형광체 표면의 전도도 기여에 제 역할을 못하고 50중량 %보다 많이 들어가면 In2O3가 형광체 표면을 감싸게 되어 형광체가 발광하지 못하므로 바람직하지 않다.The phosphor slurry composition for a flat panel display of the present invention includes a phosphor coated with In 2 O 3 . In order to prepare the phosphor slurry composition, first, a phosphor coated with In 2 O 3 is prepared by the following process. First, a glass ball and In 2 O 3 , pure water, and a dispersant are added and ball milled for 2 to 4 days, preferably 3 days to uniformly disperse In 2 O 3 . As the dispersant, sodium salt of polymeric carboxylic acid, or the like may be used. In addition, gelatin or arabic gum is added to the pure water while stirring the phosphor, and gelatin or arabic gum is coated on the phosphor while adjusting the pH to about 3.4 with an acid such as acetic acid. The two solutions thus prepared are mixed and stirred, and then the pH is adjusted to about 3.4 with an acid such as acetic acid, followed by coating the In 2 O 3 on the phosphor, followed by filtering and drying. In this case, the mixing ratio of the two solutions is preferably adjusted to mix 0.1 to 50% by weight of the phosphor weight, more preferably 1 to 20% by weight of In 2 O 3 to the phosphor. If In 2 O 3 is less than 0.1% by weight does not play a role in contributing to the conductivity of the surface of the phosphor, If more than 50% by weight In 2 O 3 is wrapped around the surface of the phosphor is not preferable because the phosphor does not emit light.
In2O3는 비수용성 물질이므로 기존의 슬러리액에 단순히 일정 비율로 혼합하면, 최종 형광체 막에서 In2O3가 분리되는 등 형광막의 품위가 저하되므로, 본 발명에서와 같이 별도의 용액으로 제조한 후 형광체에 코팅하여 사용하여야만 FED 등의 저전압 표시 소자에 적합한 형광체가 된다.Since In 2 O 3 is a non-aqueous material, simply mixing the existing slurry liquid at a predetermined ratio reduces the quality of the fluorescent film such as In 2 O 3 is separated from the final phosphor film, and thus is prepared as a separate solution. Only after coating the phosphor to use it becomes a phosphor suitable for low-voltage display elements such as FED.
이와 같이 제조된 In2O3가 코팅된 형광체에 폴리비닐알코올(PVA) 등의 고분자(증점제), 소듐 디크로메이트(Sodium Dichromate) 등의 감광제, 분산제, 순수 등을 혼합하여 본 발명의 형광체 슬러리액 조성물을 제조한다. 이때 상기 슬러리액 조성물중 In2O3가 코팅된 형광체의 양은 전체 슬러리액 대비 20-70중량%인 것이 바람직하며, 35-55중량%이면 더욱 바람직하다. In2O3가 코팅된 형광체의 양은 형성되는 막의 충진(packing)률, 접착력 등에 관계되므로, In2O3가 코팅된 형광체의 양이 상기 범위를 만족할 때, 목적하는 충진률, 접착력 등을 얻을 수 있다. 이들 고분자, 감광제, 분산제 등은 통상의 형광체 슬러리 제조에 사용되는 물질을 사용할 수 있으며, 이들 물질의 혼합 순서에도 별도의 제한을 두지 않으나, 고분자와 감광제 및 순수를 혼합하여 1시간 가량 교반하고, 분산제와 첨가제를 넣고 30분 가량 더 교반한 다음, 마지막으로 형광체를 넣고 4시간 정도 더 교반하는 것이 형광체의 분산성과 접착력 향상을 위하여 바람직하다.The phosphor slurry of the present invention is mixed with a polymer (thickener) such as polyvinyl alcohol (PVA), a photosensitizer such as sodium dichromate, a dispersant, and a pure water to the In 2 O 3 coated phosphor prepared as described above. Prepare the composition. At this time, the amount of the phosphor coated with In 2 O 3 in the slurry composition is preferably 20-70% by weight relative to the total slurry, more preferably 35-55% by weight. Since the amount of phosphor coated with In 2 O 3 is related to the packing rate, adhesion strength, etc. of the film to be formed, when the amount of phosphor coated with In 2 O 3 satisfies the above range, a desired filling rate, adhesion strength, etc. can be obtained. Can be. These polymers, photosensitizers, dispersants, etc. may be used materials used in the manufacture of ordinary phosphor slurry, and the mixing order of these materials is not limited, but the polymer is mixed with a photosensitizer and pure water for about 1 hour, the dispersant After adding and additives and stirring for about 30 minutes, and finally adding phosphor and stirring for about 4 hours, it is preferable to improve the dispersibility and adhesion of the phosphor.
다음으로 상기 슬러리액 조성물을 ITO전극이 형성된 전면 플레이트에 도포하고, 회전 건조시킨 후, 노광한 다음, 저압 노즐을 이용하여 현상하고 건조시켜 형광체 패턴을 형성한다. 또한 칼라 형광막의 형성이 필요한 경우에는 R, G, B 형광체 슬러리액 조성물을 별도로 제조하고 상기 과정을 반복하여 칼라 형광막을 형성할 수 있다.Next, the slurry liquid composition is applied to the front plate on which the ITO electrode is formed, rotated and dried, and then exposed, and then developed and dried using a low pressure nozzle to form a phosphor pattern. In addition, when the color fluorescent film is required to be formed, the R, G, and B phosphor slurry liquid compositions may be separately prepared, and the process may be repeated to form a color fluorescent film.
이하, 본 발명의 실시예를 기재한다. 그러나 하기 실시예는 본 발명을 예시하는 것일 뿐이며 본 발명을 한정하는 것은 아니다.Hereinafter, the Example of this invention is described. However, the following examples are merely to illustrate the invention and not to limit the invention.
[실시예 1] 그린 형광체 슬러리액 제조Example 1 Preparation of Green Phosphor Slurry Liquid
순수 62.48그램, 고분자로서 8% 폴리비닐알코올(PVA) 34.64그램, 감광제로서 5% 소듐 디크로메이트(SDC) 6.32그램을 먼저 혼합하여 1시간 정도 교반한다. 다음으로 분산제 및 첨가제로서 에틸렌글리콜 1.62그램, 10% 폴리머릭카복실산의 나트륨염(sodium salt of polymeric carboxylic acid) 0.52그램, 5% 폴리옥시에틸렌 솔비탄 모노라우트(Polyoxyethylene sorbitan mono laurate) 0.88그램, 5% 폴리옥시프로필렌 및 폴리옥시에틸렌 공중합체 0.88그램, 50% N-메틸피롤리돈 3.38그램을투입하고 30분 정도 교반한 다음, In2O3가 10% 코팅된 그린 형광체 88.1그램 투입하고 4시간 정도 다시 교반하여 200그램의 그린 형광체 슬러리액을 제조하였다.62.48 grams of pure water, 34.64 grams of 8% polyvinyl alcohol (PVA) as a polymer, and 6.32 grams of 5% sodium dichromate (SDC) as a photosensitizer were mixed first and stirred for about 1 hour. Next, as a dispersant and additive, 1.62 grams of ethylene glycol, 0.52 grams of sodium salt of polymeric carboxylic acid, 0.88 grams, 5% polyoxyethylene sorbitan mono laurate, 5% 0.88 grams of polyoxypropylene and polyoxyethylene copolymer and 3.38 grams of 50% N-methylpyrrolidone were added and stirred for about 30 minutes, followed by 88.1 grams of In 2 O 3 coated 10% green phosphor, followed by 4 hours. The mixture was stirred again to prepare 200 grams of green phosphor slurry.
[실시예 2] 블루 형광체 슬러리액 제조Example 2 Preparation of Blue Phosphor Slurry Liquid
순수 62.86그램, 고분자로서 8% 폴리비닐알코올(PVA) 43.16그램, 감광제로서 5% 소듐 디크로메이트(SDC) 6.74그램을 먼저 혼합하여 1시간 정도 교반한다. 다음으로 분산제 및 첨가제로서 10% 폴리머릭카복실산의 나트륨염(sodium salt of polymeric carboxylic acid) 1.46그램, 5% 폴리옥시에틸렌 솔비탄 모노 라우트(Polyoxyethylene sorbitan mono laurate) 0.94그램, 5% 폴리옥시프로필렌 및 폴리옥시에틸렌 공중합체 0.94그램, 50% N-메틸피롤리돈 2.96그램을 투입하고 30분 정도 교반한 다음, In2O3가 10% 코팅된 블루 형광체 80.92그램 투입하고 4시간 정도 다시 교반하여 200그램의 블루 형광체 슬러리액을 제조하였다.62.86 grams of pure water, 43.16 grams of 8% polyvinyl alcohol (PVA) as a polymer, and 6.74 grams of 5% sodium dichromate (SDC) as a photosensitizer were mixed first and stirred for about 1 hour. Next, as a dispersant and additive, 1.46 grams of 10% sodium salt of polymeric carboxylic acid, 0.94 grams of 5% polyoxyethylene sorbitan mono laurate, 5% polyoxypropylene and poly 0.94 grams of oxyethylene copolymer, 2.96 grams of 50% N-methylpyrrolidone were added and stirred for about 30 minutes. Then, 80.92 grams of blue phosphor coated with 10% In 2 O 3 was added and stirred again for about 4 hours to 200 grams. A blue phosphor slurry solution was prepared.
[실시예 3] 레드 형광체 슬러리액 제조Example 3 Preparation of Red Phosphor Slurry Liquid
순수 58.446그램, 고분자로서 8% 폴리비닐알코올(PVA) 45.9그램, 감광제로서 5% 소듐 디크로메이트(SDC) 2.96그램을 먼저 혼합하여 1시간 정도 교반한다. 다음으로 분산제 및 첨가제로서 10% 폴리머릭카복실산의 나트륨염(sodium salt of polymeric carboxylic acid) 1.46그램, 5% 폴리옥시에틸렌 솔비탄 모노 라우트(Polyoxyethylene sorbitan mono laurate) 0.94그램, 5% 폴리옥시프로필렌및 폴리옥시에틸렌 공중합체 0.94그램, 50% N-메틸피롤리돈 2.96그램을 투입하고 30분 정도 교반한 다음 In2O3가 10% 코팅된 레드 형광체 80.98그램 투입하고 4시간 정도 다시 교반하여 200그램의 레드 형광체 슬러리액을 제조하였다.58.446 grams of pure water, 45.9 grams of 8% polyvinyl alcohol (PVA) as a polymer, and 2.96 grams of 5% sodium dichromate (SDC) as a photosensitizer were first mixed and stirred for about 1 hour. Next, as dispersant and additive, 1.46 grams of 10% sodium salt of polymeric carboxylic acid, 0.94 grams of 5% polyoxyethylene sorbitan mono laurate, 5% polyoxypropylene and poly 0.94 grams of oxyethylene copolymer, 2.96 grams of 50% N-methylpyrrolidone were added and stirred for about 30 minutes. Then, 80.98 grams of red phosphor coated with 10% In 2 O 3 was added and stirred again for 4 hours to 200 grams of A red phosphor slurry was prepared.
이상 개시한 바와 같이, In2O3가 코팅된 형광체를 사용하여 전계 방출 디스플레이의 형광막을 슬러리법으로 제작하면 In2O3가 도전성 물질이므로 전자가 형광체에 쌓여 전하가 형광막에 축적(charge up)되는 현상을 방지할 수 있을 뿐만 아니라, 형광막이 치밀하고 균일해 품위가 뛰어나며 색 재현 범위가 넓어 저전압용 평판 표시장치에 특히 적합하다. 또한 스핀 코팅법을 이용하여 형광막을 코팅하므로 대형화가 유리할 뿐만 아니라, 포토 공정을 통해 미세 패턴의 형성이 용이하므로 모니터용 디바이스 제작이 가능하다.As described above, when the fluorescent film of the field emission display is prepared using the phosphor coated with In 2 O 3 by the slurry method, since the In 2 O 3 is a conductive material, electrons accumulate in the phosphor and charge accumulates in the fluorescent film. In addition, the fluorescent film is compact and uniform, which has excellent quality and wide color reproduction range, and is particularly suitable for low voltage flat panel display devices. In addition, since the fluorescent film is coated using the spin coating method, it is advantageous to increase the size of the fluorescent film, and it is possible to form a fine pattern through a photo process, thereby making it possible to manufacture a device for a monitor.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019990011046A KR100300326B1 (en) | 1999-03-30 | 1999-03-30 | Phosphor slurry composition for field emission display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019990011046A KR100300326B1 (en) | 1999-03-30 | 1999-03-30 | Phosphor slurry composition for field emission display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20000061758A KR20000061758A (en) | 2000-10-25 |
| KR100300326B1 true KR100300326B1 (en) | 2001-09-22 |
Family
ID=19578237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019990011046A KR100300326B1 (en) | 1999-03-30 | 1999-03-30 | Phosphor slurry composition for field emission display |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100300326B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100608076B1 (en) | 2004-07-16 | 2006-08-08 | 엘지엔시스(주) | A media dispenser and control method the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR940000663A (en) * | 1992-06-05 | 1994-01-03 | 강진구 | Power train of washing machine |
| KR19980027013A (en) * | 1996-10-14 | 1998-07-15 | 구자홍 | Fluorescent Film Slurry Composition of Color Cathode Ray Tube |
-
1999
- 1999-03-30 KR KR1019990011046A patent/KR100300326B1/en not_active IP Right Cessation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR940000663A (en) * | 1992-06-05 | 1994-01-03 | 강진구 | Power train of washing machine |
| KR19980027013A (en) * | 1996-10-14 | 1998-07-15 | 구자홍 | Fluorescent Film Slurry Composition of Color Cathode Ray Tube |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100608076B1 (en) | 2004-07-16 | 2006-08-08 | 엘지엔시스(주) | A media dispenser and control method the same |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20000061758A (en) | 2000-10-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7053551B2 (en) | Zinc silicate system phosphor, method for producing the same, zinc silicate system phosphor paste, and display device | |
| KR20050084554A (en) | Phosphor and plasma display unit | |
| KR100327548B1 (en) | Dielectric color filter for AC driven plasma display panel and its manufacturing method | |
| KR20010062520A (en) | Plasma display panel | |
| KR100300326B1 (en) | Phosphor slurry composition for field emission display | |
| US6791253B2 (en) | Display | |
| JP2001187884A (en) | Preparation process of phosphor, plasma display panel display device and fluorescent lamp | |
| JP4078374B2 (en) | Fluorescent screen substrate, image display device, and video reception display device | |
| JPH11144625A (en) | Plasma display panel and its manufacture | |
| KR20070112010A (en) | Blue phosphor and display panel using the same | |
| KR20020038960A (en) | Manufacturing method of fluorescent material, plasma display panel display device and fluorescent lamp | |
| US20060145588A1 (en) | Phosphor paste composition comprising phosphate ester as dispersant and display using the same | |
| JPH11213892A (en) | Plasma display panel | |
| JPH11185635A (en) | Plasma display panel and manufacture of plasma display panel | |
| KR100573617B1 (en) | Metal oxide mixed phosphor pastes for plasma display panel and its preparation | |
| KR100315222B1 (en) | A manufacturing method of anode for a flat display panel and the flat display panel having the anode | |
| JP2001135239A (en) | Plasma display unit and picture image display system using the same | |
| JP2006299098A (en) | Light emitting apparatus and image display unit | |
| EP1607461A1 (en) | Green light emitting phosphor for low voltage/high current density and field emissiion type display including the same | |
| JP2000096046A (en) | Fluorescent screen for field emission display and field emission display | |
| KR100223518B1 (en) | A znga204(:mn) phosphor for low-voltage and a method for manufacturing a phosphor screen by using it | |
| JP2615524B2 (en) | Gas discharge type display panel | |
| JP5401019B2 (en) | Flat panel display | |
| KR100367763B1 (en) | Fluorescent paste for plasma display panel | |
| KR100326762B1 (en) | Phosphor paste of PDP |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant | ||
| FPAY | Annual fee payment |
Payment date: 20110527 Year of fee payment: 11 |
|
| LAPS | Lapse due to unpaid annual fee |