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WO2006030996A2 - Degazeur d'ecran a cristaux liquides - Google Patents

Degazeur d'ecran a cristaux liquides Download PDF

Info

Publication number
WO2006030996A2
WO2006030996A2 PCT/KR2004/002401 KR2004002401W WO2006030996A2 WO 2006030996 A2 WO2006030996 A2 WO 2006030996A2 KR 2004002401 W KR2004002401 W KR 2004002401W WO 2006030996 A2 WO2006030996 A2 WO 2006030996A2
Authority
WO
WIPO (PCT)
Prior art keywords
getter
lcd
titanium
iron
powder
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.)
Ceased
Application number
PCT/KR2004/002401
Other languages
English (en)
Other versions
WO2006030996A3 (fr
Inventor
Ho Ha
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SE-JONG MATERIALS Ltd
Original Assignee
SE-JONG MATERIALS Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SE-JONG MATERIALS Ltd filed Critical SE-JONG MATERIALS Ltd
Priority to JP2007531061A priority Critical patent/JP2008513934A/ja
Publication of WO2006030996A2 publication Critical patent/WO2006030996A2/fr
Anticipated expiration legal-status Critical
Publication of WO2006030996A3 publication Critical patent/WO2006030996A3/fr
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/24—Means for obtaining or maintaining the desired pressure within the vessel
    • H01J61/28—Means for producing, introducing, or replenishing gas or vapour during operation of the lamp
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/24—Means for obtaining or maintaining the desired pressure within the vessel
    • H01J61/26—Means for absorbing or adsorbing gas, e.g. by gettering; Means for preventing blackening of the envelope
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
    • H01J7/14—Means for obtaining or maintaining the desired pressure within the vessel
    • H01J7/18—Means for absorbing or adsorbing gas, e.g. by gettering
    • H01J7/183—Composition or manufacture of getters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
    • H01J7/14—Means for obtaining or maintaining the desired pressure within the vessel
    • H01J7/20—Means for producing, introducing, or replenishing gas or vapour during operation of the tube or lamp
    • 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
    • H01J9/38—Exhausting, degassing, filling, or cleaning vessels
    • H01J9/395—Filling vessels

Definitions

  • the present invention relates to a LCD (Liquid Crystal Display) getter in which can make possible to handle a high vacuum level by absorbing remaining gases inside of a closed container with chemical reaction in first vacuum handled by vacuum pump, especially which can make to use exclusively in
  • LCD Liquid Crystal Display
  • CCFL Cold Cathode Fluorescent Lamp
  • TFT-LCD Thin Film Transistor -
  • Liquid Crystal Display including mercury with structural element of the getter.
  • the getter of the present invention can make not only to handle FFL (Flat Fluorescent Lamp) in a surface back lighting method of TFT-LCD and a high vacuum level including a certain amount of mercury, but also a kind of a inert gas lamp including very small amount of mercury.
  • FFL Fluorescent Lamp
  • the present invention related to a LCD (Liquid Crystal Display) getter in which could make possible to handle a high vacuum level by absorbing remaining gases inside of a closed container with chemical reaction in a first vacuum handled by vacuum pump, especially which could make to use exclusively in CCFL (Cold Cathode Fluorescent Lamp) of TFT-LCD (Thin Film Transistor - Liquid Crystal Display) including mercury with structural element of the getter. Also, the getter of the present invention could make not only to handle FFL (Flat Fluorescent Lamp) in a surface back lighting method of TFT- LCD and a high vacuum level including a certain amount of mercury, but also a kind of a inert gas lamp including very small amount of mercury. Disclosure of Invention
  • the present invention related to a LCD (Liquid Crystal Display) getter in which could make possible to handle a high vacuum level by absorbing remaining gases inside of a closed container with chemical reaction in a first vacuum handled by vacuum pump, especially which could make to use exclusively in CCFL (Cold Cathode Fluorescent Lamp) of TFT-LCD (Thin Film Transistor - Liquid Crystal Display) including mercury with structural element of the getter.
  • the getter of the present invention could make not only to handle FFL (Flat Fluorescent Lamp) in a surface back lighting method of TFT- LCD and a high vacuum level including a certain amount of mercury, but also a kind of a inert gas lamp including very small amount of mercury.
  • a getter after exhaust vacuum pump was having a special quality to be able to absorbing well to get rid of gases chemically
  • many metal components can be manufactured as a state of mixture, inter-metallic compound and alloy, which is based on a condition of use the getter through lamp manufactured process and a components of remaining gases in a lamp.
  • getters could be manufactured by the type and organized state (alloy, inter-metallic compound and mixture) of the getter, so the effectiveness of the getter might be differed in components, organized rates and qualities of components. Therefore, there were many developments of the getter depend on different components and organized rates through investment and R&D for making a high quality of the getter.
  • the R&D of the getter might be developed and continuously at present. Meanwhile, there was one of the getter CCFL (Cold Cathode
  • TFT-LCD Thin Film Transistor - Liquid Crystal Display
  • the lamp was to make possible to apply for the products we might meet daily such as PCs, notebook PCs, LCD TVs, mobile phones, videophones and automobile navigators.
  • the prior getter used to cut the getter in a fixed size each manufacturing the lamp because the prior getter used a manufactured getter to adhere thinly the getter powder on a thin metal sheet surface and used products to put getter powder inside of a groove of square shape as a long wire form.
  • the getter powder with containing mercury could be separately from the getter when the getter is cut. This was not only harmful cause of working environment but also the getter could not be manufactured as a fixed quality by a declination of the degree of vacuum and the amount of mercury because the amount of inputting getter is not fixed as separation rate of the getter powder with containing mercury. Moreover, the other problem was that a getter might not be inputted smoothly due to sticking when the getter was inputted into a lamp in a manufacturing process because the prior getter was a product to put the getter powder inside of a groove of square shape as a long wire form.
  • a getter of the present invention is designed and manufactured by a mixture of metal and mercury chemically as input getter powder in a cylinder container as a cup shape and a piece of cylinder that can make possible not only to input the getter into a lamp simply but also to input a certain amount of mercury inside of a lamp and execution of a role of the getter.
  • a getter of the present invention has the functions of removing chemically remaining gases in backlight to create high vacuum level and of dispensing mercury into it so that no additional process of mercury input is required. That is, this getter can create high vacuum level and dispense mercury as vapor at the same time. Especially, the getter can hit up evenly among all by a high frequency to match productions, qualities of containers and shapes, and the mercury can emit only in the range of temperature at 450 ⁇ 900°C for the getter.
  • the present invention obviously makes possible to be able to decrease badness of the getter and to increase a function for emitting mercury and degree of vacuum by only high frequency to set the range of activation temperature as the getter is mainly absorbing gases and emitting temperature range of the mercury with emitting a certain amount of mercury.
  • a getter of the present invention can make possible to use any lamp that is used for the use of luminescence, especially it can be used exclusively in CCFL (Cold Cathode Fluorescent Lamp) of TFT-LCD (Thin Film Transistor - Liquid Crystal Display).
  • CCFL Cold Cathode Fluorescent Lamp
  • TFT-LCD Thin Film Transistor - Liquid Crystal Display
  • the CCFL of TFT-LCD uses extensively for products we meet daily such as PCs, notebook PCs, LCD TVs, mobile phones, videophones and automobile navigators, the inside of the lamp is applied a getter for improving the degree of vacuum. Also mercury is put into the inside of the lamp for the use of luminescence.
  • the getter of the present invention not only increases effect to compare with the prior method to put mercury separately but also is easy to input the getter inside of a lamp as inputting a getter powder in a cylinder container as a cup shape and a piece of cylinder of the getter because the getter is manufactured to be able to input a certain amount of mercury as always the state of gas from the getter of the state of amalgam inside of the lamp.
  • the getter of the present invention to input to vaporize mercury as the state of gas is the ideal in the manufacturing lamp as needed mercury because the world absolutely prefer to manufacturing as the use of the smallest amount of mercury due to the problem of an environmental harmfulness of the world.
  • the getter of the present invention is not changing the existing process in manufacture to apply the getter to harmonize the production of the getter, the quality of a container, the shape of the container, but the getter makes possible to increase degree of vacuum and mainly emitting mercury to fix only the range of the temperature 450 ⁇ 900°C by once of the high frequency heating.
  • Figure 1 is a perspective view illustrating that a getter powder is charged by pressurization into a container such as a shape of a pipe according to the present invention.
  • Figure 2 is a perspective view illustrating that a getter powder is charged by pressurization into a container such as a shape of a cup according to the present invention.
  • Figure 3 is a perspective view illustrating that a getter powder is charged by pressurization into a container such as a shape of a pipe to become open as a certain width according to the present invention.
  • Figure 4 is a perspective view illustrating that a getter powder is charged by pressurization into a container such as a shape of a cup to become open as a certain width according to the present invention.
  • Figure 5 is a perspective view illustrating that a getter powder is only modeled by pressurization of pellet type according to the present invention.
  • Figure 6 is a block view illustrating to show manufacturing process of a lamp to be used the getter according to the present invention.
  • Figure 7 is a drawing of a lamp to be used a getter according to the present invention.
  • a getter of the present invention is made of an inter-metallic compound or an iron-titanium (Fe-Ti) alloy in which is mixed iron (Fe) and titanium (Ti) powder as (10-60): (90-40) by weight rate or manufactured by reaction at over
  • the getter of the present invention in which is made up the amalgam compound of (Fe-Ti+Ti)-Hg form, includes a cylinder container such as a shape of pipe as a diameter 0.7 ⁇ 7mm and a height 0.5-20mm as shown in Figure 1 and a cylinder container as a cup wherein a bottom of the cup is closed as shown in Figure 2.
  • the diameter, length, same size and shape, or the same size is the same as shown in Figure 3 and 4 but the getter can be manufactured to charge a getter powder by pressurization into a container of a shape of a part to be opened by emitting 0.01 ⁇ 3.0mm a part width as a length of a container, and manufactured as modeling by pressurization into a form of diameter 0.7 ⁇ 7mm, heights 0.5 ⁇ 20mm cylinder as shown in Figure 5 as a pellet type of only powder itself.
  • the container can use to choose one of nickel, stainless steel, nickel-plating in stainless steel, iron, nickel-plating in iron, copper, nickel plating in copper, molybdenum, and titanium material.
  • the getter further comprises to be able to be manufactured by the getter in which is mixed the LCD getter and zirconium (Zr) powder as (30 ⁇ 96):(70 ⁇ 4) by weight rate; the getter in which is mixed the LCD getter and titanium (Ti) powder as (30-96): (70-4) by weight rate; the getter in which is mixed the LCD getter and zirconium (Zr) powder including alloy of weight rate over 60% or zirconium-iron (ZrFe) power of inter- metallic compound as (30-96): (70-4) by weight rate; the getter in which is mixed the LCD getter and titanium (Ti) powder including alloy of weight rate over 60% or zirconium-iron(ZrFe) power of inter- metallic compound as (30 ⁇ 96):(70 ⁇ 4) by weight rate; the getter in which is mixed the LCD getter and alloy of zirconium (Zr) and manganese (Mn) powder as (40-80): (60-20) by weight rate or zirconium-
  • the following expression as a getter of the present invention through Figure 6 give expression to be used manufacturing process of a lamp based on CCFL (Cold Cathode Fluorescent Lamp) of TFT-LCD (Thin Film Transistor - Liquid Crystal Display).
  • First step of the manufacturing process of a lamp gives form to 1st vacuum to absorb inside air of the lamp in state of heating at about 400 0 C by a vacuum pump (S100).
  • Second step of the manufacturing process of a lamp closes up an upper part (120) of the lamp (S200).
  • Third step of the manufacturing process of a lamp is that the lamp gives form to high level of a vacuum as absorbing the remaining air inside of the lamp by a chemical reaction if the getter is activated as heating an inserted getter (100) by high frequency at 450 ⁇ 900°C inside of the lamp. Meanwhile, mercury is emitted from the getter as the mercury is vaporized in which was a state of amalgam inside of the getter if the getter applies heat to by the high frequency, the emitting mercury moves to lower temperature so automatically the mercury moves to inside of the lamp (S300).
  • Fourth step of the manufacturing process of a lamp is completed to cut and close a concave part (130) with an inserted electrode of the lamp at the same time if mercury moves to inside (140) of the lamp (S140).
  • the container of the getter can be used to choose one of the following materials such as nickel, stainless steel, nickel-plating in stainless steel, iron, nickel-plating in iron, clad of iron and copper, copper, nickel-plating in copper, molybdenum, and titanium material
  • the size and type of the container is about diameter 07 ⁇ 7mm, heights 0.5 ⁇ 20mm as cylinder container such as shape of a cup, the container as itself can be used an electrode in both sides of the lamp.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Discharge Lamp (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

L'invention concerne un dégazeur d'écran à cristaux liquides qui permet d'obtenir un niveau de vide élevé grâce à l'absorption des restes de gaz à l'intérieur d'un récipient fermé, ladite absorption étant mise en oeuvre grâce à une réaction chimique produite dans un premier vide formé par une pompe à vide. L'invention s'utilise en particulier exclusivement dans la lampe fluorescente à cathode froide (CCFL) d'un écran à matrice active (écran TFT) comprenant du mercure et un élément structural du dégazeur. Le dégazeur est non seulement utile pour obtenir un niveau de vide élevé dans une lampe fluorescente plate (FFL) à rétroéclairage utilisant une certaine quantité de mercure, mais aussi dans une sorte de lampe à gaz inerte comprenant une très faible quantité de mercure.
PCT/KR2004/002401 2004-09-15 2004-09-20 Degazeur d'ecran a cristaux liquides Ceased WO2006030996A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007531061A JP2008513934A (ja) 2004-09-15 2004-09-20 Ｌｃｄゲッター

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020040073747A KR100641301B1 (ko) 2004-09-15 2004-09-15 겟터 겸용 수은 보충재
KR10-2004-0073747 2004-09-15

Publications (2)

Publication Number Publication Date
WO2006030996A2 true WO2006030996A2 (fr) 2006-03-23
WO2006030996A3 WO2006030996A3 (fr) 2007-10-18

Family

ID=36060433

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2004/002401 Ceased WO2006030996A2 (fr) 2004-09-15 2004-09-20 Degazeur d'ecran a cristaux liquides

Country Status (4)

Country Link
JP (1) JP2008513934A (fr)
KR (1) KR100641301B1 (fr)
CN (1) CN100462807C (fr)
WO (1) WO2006030996A2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008007404A3 (fr) * 2006-07-11 2008-04-24 Getters Spa Procédé de libération de mercure
JP2009123672A (ja) * 2007-11-13 2009-06-04 Heesung Material Ltd 水銀導入装置
WO2009080569A1 (fr) 2007-12-21 2009-07-02 Saes Getters S.P.A. Dispositifs de diffusion de mercure à perte de particules réduite
JP2009176709A (ja) * 2008-01-28 2009-08-06 Heesung Material Ltd 蛍光ランプに水銀を導入するための水銀導入装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101697338B (zh) * 2009-10-28 2011-02-16 南京泰欧科技开发有限公司 小型管状释汞吸气元件及其加工方法
JP5573691B2 (ja) * 2011-01-18 2014-08-20 ウシオ電機株式会社 デジタルプロジェクター用のキセノンショートアークランプ

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2935295B2 (ja) * 1991-07-08 1999-08-16 東芝ライテック株式会社 冷陰極蛍光ランプおよびその製造方法
JPH0721975A (ja) * 1993-06-30 1995-01-24 Harrison Denki Kk 放電灯及びその内部電極の製造方法
IT1270598B (it) * 1994-07-07 1997-05-07 Getters Spa Combinazione di materiali per dispositivi erogatori di mercurio metodo di preparazione e dispositivi cosi' ottenuti
IT1273531B (it) * 1995-04-10 1997-07-08 Getters Spa Combinazioni di materiali per dispositivi integrati getter ed erogatori di mercurio e dispositivi cosi' ottenuti
CN1123036C (zh) * 1996-02-09 2003-10-01 工程吸气公司 用于吸气材料激活的低温触发的材料组合物以及含有这种材料组合物的吸气装置
IT1317951B1 (it) * 2000-05-30 2003-07-21 Getters Spa Leghe getter non evaporabili
IT1318937B1 (it) * 2000-09-27 2003-09-19 Getters Spa Metodo per la produzione di dispositivi getter porosi con ridottaperdita di particelle e dispositivi cosi' prodotti
KR100364595B1 (ko) * 2001-03-05 2002-12-31 주식회사 세종소재 엘씨디 백 라이트용 수은 디스펜서 겟터
KR100415615B1 (ko) * 2001-06-13 2004-01-24 엘지전자 주식회사 게터 조성물 및 이를 이용한 전계방출표시소자
ITMI20012389A1 (it) * 2001-11-12 2003-05-12 Getters Spa Catodo cavo con getter integrato per lampade a scarica e metodi per la sua realizzazione
TWI245308B (en) * 2002-09-13 2005-12-11 Getters Spa Non-evaporable getter compositions which can be reactivated at low temperature after exposure to reactive gases at a higher temperature
JP4181385B2 (ja) 2002-11-15 2008-11-12 松下電器産業株式会社 水銀放出構体の製造方法

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008007404A3 (fr) * 2006-07-11 2008-04-24 Getters Spa Procédé de libération de mercure
RU2411603C2 (ru) * 2006-07-11 2011-02-10 Саес Геттерс С.П.А. Способ выделения ртути
US8062585B2 (en) 2006-07-11 2011-11-22 Saes Getters S.P.A. Mercury releasing method
JP2009123672A (ja) * 2007-11-13 2009-06-04 Heesung Material Ltd 水銀導入装置
WO2009080569A1 (fr) 2007-12-21 2009-07-02 Saes Getters S.P.A. Dispositifs de diffusion de mercure à perte de particules réduite
CN101896988A (zh) * 2007-12-21 2010-11-24 工程吸气公司 具有降低的颗粒损失的汞投配器件
US7982383B2 (en) 2007-12-21 2011-07-19 Saes Getters S.P.A. Mercury dispensing devices with a reduced particle loss
JP2009176709A (ja) * 2008-01-28 2009-08-06 Heesung Material Ltd 蛍光ランプに水銀を導入するための水銀導入装置

Also Published As

Publication number Publication date
CN100462807C (zh) 2009-02-18
JP2008513934A (ja) 2008-05-01
CN101120282A (zh) 2008-02-06
KR20060024891A (ko) 2006-03-20
KR100641301B1 (ko) 2006-11-02
WO2006030996A3 (fr) 2007-10-18

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