WO2000076924A1 - Plaque de protection en verre pour dispositif a ecran plat et son procede de fabrication - Google Patents

Plaque de protection en verre pour dispositif a ecran plat et son procede de fabrication Download PDF

Info

Publication number
WO2000076924A1
WO2000076924A1 PCT/KR2000/000623 KR0000623W WO0076924A1 WO 2000076924 A1 WO2000076924 A1 WO 2000076924A1 KR 0000623 W KR0000623 W KR 0000623W WO 0076924 A1 WO0076924 A1 WO 0076924A1
Authority
WO
WIPO (PCT)
Prior art keywords
cover glass
glass
display device
panel display
flat panel
Prior art date
Application number
PCT/KR2000/000623
Other languages
English (en)
Inventor
Pil-Ho Sung
Original Assignee
Sung Pil Ho
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 Sung Pil Ho filed Critical Sung Pil Ho
Priority to AU51136/00A priority Critical patent/AU5113600A/en
Priority to JP2001503395A priority patent/JP2003502257A/ja
Publication of WO2000076924A1 publication Critical patent/WO2000076924A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/02—Re-forming glass sheets
    • C03B23/023—Re-forming glass sheets by bending
    • C03B23/03—Re-forming glass sheets by bending by press-bending between shaping moulds
    • C03B23/0307—Press-bending involving applying local or additional heating, cooling or insulating means
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B19/00—Other methods of shaping glass
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B25/00—Annealing glass products
    • C03B25/04—Annealing glass products in a continuous way
    • C03B25/06—Annealing glass products in a continuous way with horizontal displacement of the glass products
    • C03B25/08—Annealing glass products in a continuous way with horizontal displacement of the glass products of glass sheets
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/50—Protective arrangements

Definitions

  • the present invention relates to a cover glass for a flat panel display device and a method for manufacturing the same, and more particularly to a cover glass for a flat panel display device attached to a front portion of the flat panel display device so as to efficiently protect the flat display panel of the flat panel display device and to stably maintain the airtightness between the flat panel and the cover glass, and to a method for manufacturing the same.
  • a cover glass is attached to the front panel of the flat panel display device on which various images are displayed.
  • the cover glass includes a plate formed on the front portion of the flat panel display device and spacers formed on the peripheral portions of the front panel of the flat panel display device.
  • the plate of the cover glass is a front glass and the spacers of the cover glass are side glasses.
  • FIG. 1 is a perspective view for illustrating a conventional process for attaching a cover glass to the flat display panel of the flat panel display device.
  • the cover glass in order to protect the flat panel display device, includes a plate 20 formed on the front portion of the flat display panel 10 and a plurality of spacers 30, 31, 40, 41 formed at peripheral portions of the flat display panel 10.
  • the plate 20 is disposed of on the spacers 30, 31, 40, 41, that is the front portion of the flat display panel 10. Subsequently, after the spacers 30, 31, 40, 41 and the plate 20 are attached by molding process to form the cover glass, the space between the cover glass and the flat display panel 10 form a vacuum to attach the cover glass on the flat display panel 10.
  • the manufacturing process of the cover glass may become complex and the manufacturing time of the cover glass may increase because the cover glass is formed by means of combining the plate with the spacers after the plate and the spacers are separately manufactured according to the above-described process.
  • the manufacturing process becomes more complex as well as the space between the cover glass and the flat display panel may not be maintained vacuum since the plate is attached to the spacers by molding after several spacers are attached to the flat display panel by molding.
  • the cover glass may not efficiently protect the flat display panel since the connecting portion between the front plate and the spacers may be fractured by an external impact.
  • a cover glass for a flat panel display device including a front plate and spacers integrally formed so as to efficiently protect the flat display panel of the flat panel display device as well as to stably maintain the airtightness between the flat display panel and the cover glass. It is another object of the present invention to provide a method for manufacturing a cover glass having a front plate and spacers integrally formed.
  • the preferred embodiment of the present invention provides a cover glass for a flat panel display device comprising a front plate and at least one spacer integrally formed with the front plate.
  • the spacer is vertically extended from the front plate.
  • a method for manufacturing a cover glass for a flat panel display device comprising i) preheating a glass having a shape of a plate, heating the preheated glass to a temperature wherein the preheated glass is plastically deformed and forming a cover glass having a front plate and spacers integrally formed by pressing the heated glass.
  • the method for a cover glass for a flat panel display device further comprises annealing the cover glass.
  • the cover glass is formed under a pressure of about 3 to about 6 kg/cm 2 by a pressing method.
  • the step of preheating the glass is performed at a temperature of approximately
  • the step of heating the preheated glass is performed by heating the preheated glass above the transition temperature of a glass such as a
  • the cover glass is attached to the flat display panel of a flat panel display device by using frit as a sealing agent.
  • the cover glass can be simply manufactured through the cover glass is formed by one pressing process and the manufacturing cost and the manufacturing time can be much reduced. Also, the durability of the cover glass greatly increases while the cover glass can have a more beautiful appearance since the cover glass has the front plate and the spacer integrally formed together.
  • FIG. 1 is a perspective view for illustrating a process for applying the conventional cover glass to a flat display panel
  • FIG. 2 is a perspective view for showing a cover glass according to a preferred embodiment of the present invention
  • FIG. 3 is a cross sectional view for illustrating a process for manufacturing a cover glass according to a preferred embodiment of the present invention
  • FIG. 4 is a perspective view for showing a cover glass attached to a flat display panel according to the present invention.
  • FIG. 2 is a perspective view for showing a cover glass according to one preferred embodiment of the present invention.
  • a cover glass 100 of the present invention comprises a front plate 110 and a spacer 120.
  • the front plate 110 has a predetermined size and shape according to the flat display panel of the flat panel display device to which the front plate 110 is to be attached.
  • the spacer 120 is integrally formed with the front plate 110.
  • the front plate 110 and the spacer 120 are composed of transparent materials to clearly show the flat display panel.
  • the spacer 120 is vertically extended from the front plate 110, so the connecting portions between the spacer 120 and the front plate 110, that is the edge portions of the cover glass 100, has an angle of about 90°.
  • the cover glass 100 having such structure is attached to the flat display panel, so the edge portions of the cover glass 100 cannot be easily fractured, so the airtightness of the space between the cover glass 100 and the flat display panel can be maintained stably and the flat display panel can be efficiently protected by the cover glass 100.
  • the flat display panel having the cover glass 100 thereon can have a more beautiful appearance.
  • the flat glass is positioned on a stage and is preheated to a predetermined temperature.
  • the flat glass is preheated to the temperature of approximately 300 to approximately 800°C which is lower than the transition temperature of glass.
  • the flat glass is preheated for about 1 to about 5 minutes by the electric heating method or the method of using combustion heat.
  • the preheated flat glass becomes a deformable condition by the direct flame injection method for about 3 to about 30 seconds and by using the gas such as liquefied petroleum gas (LPG) or city gas as the fuel source. That is, the preheated flat glass is heated to the temperature of approximately 600 to approximately 1000°C, thereby the flat glass being easily formed to have a predetermined shape during the successive shaping process.
  • LPG liquefied petroleum gas
  • the heated flat glass can be formed to have the predetermined shape with accordance to the flat display panel by the pressing method.
  • FIG. 3 is a cross sectional view for illustrating the process for manufacturing the cover glass according to the preferred embodiment of the present invention.
  • the peripheral portions of the flat glass heated by the heater are bent by using a pressing apparatus 130 having an upper die 140 and a lower die
  • the flat glass has the structure including the spacer 120 integrally formed with the front plate 110. That is, the flat glass is pressed under the pressure of approximately 3 to approximately 6 kg/cm 2 by upwardly pushing the lower die 150 to form the cover glass 100 after the flat glass is positioned between the upper die 140 and the lower die 150. Hence, the central portion of the flat glass becomes the front plate 110 of the cover glass
  • the cover glass 100 and the peripheral portions of the flat glass becomes the spacer 120 of the cover glass 100, so the cover glass 100 has the front plate 110 and the spacer 120 integrally formed with the front plate 110.
  • the cover glass is formed by means of combining the spacers with the front plate, and then the cover glass is attached to the flat display panel. Therefore, the process for connecting the spacers to the front plate may be complex and the airtightness of the space between the cover glass and the flat display panel may not be maintained as well as the cover glass cannot be sufficiently protect the flat display panel.
  • the cover glass can be attached to the flat display panel without connecting the front plate to the spacer since the cover glass includes the front plate and the spacer integrally formed together by using the pressing apparatus. Therefore, the cover glass of the present invention can be simply manufactured because the complex process for connecting the spacer to the front plate is not required.
  • the cover glass of the present invention can effectively protect the flat display panel because the default of the connection between the front plate and the spacer can be radically prevented.
  • the cover glass of the present invention can have a more beautiful appearance as well as preventing the edge portions of the cover glass to be easily fractured during the use of the cover glass since the cover glass of the present invention has the front plate and the spacer integrally formed together.
  • the fracture of a ceramic such as glass is caused by the cracks generated on the surface of the ceramic.
  • such cracks may be generated on the connecting portions between the front plate and the spacer, so the cover glass is easily fractured because of the crack.
  • the cover glass of the present invention can sufficiently prevent the generation of the cracks between the front plate and the spacer because the cover glass of the present invention has the front plate and the spacer integrally formed together. Hence, the cover glass of the present invention cannot be easily fractured by the crack during the use of the cover glass.
  • the cover glass 100 is annealed at the temperature of approximately
  • the cover glass 100 can effectively protect the flat display panel. Then, the annealed cover glass 100 is cooled. At that time, the cover glass 100 can be cooled through the natural cooling method or the forced cooling method using a blower or cooling water.
  • FIG. 4 is a perspective view for showing the cover glass attached the flat display panel according to the present invention.
  • the cover glass 100 having the predetermined size with an accordance to the flat display panel 160 is positioned on the flat display panel 160, and then the cover glass 100 is attached to the flat display panel 160 after a sealing agent such as frit is applied between the cover glass 100 and the flat display panel 160.
  • a sealing agent such as frit
  • the cover glass 100 can be firmly attached to the flat display panel 160 by using the frit since the cover glass 100 and the frit are composed of similar materials.
  • the cover glass of the present invention can be manufactured simply because the cover glass is formed by a single pressing process which allows the manufacturing cost and the manufacturing time to be much reduced.
  • the durability of the cover glass of the present invention greatly increases and the cover glass can have a more beautiful appearance since the cover glass has the front plate and the spacer integrally formed together.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)

Abstract

L'invention concerne un dispositif d'affichage à écran plat et son procédé de fabrication. Après avoir été préchauffée, une plaque de verre est portée à la température de transition du verre. Le verre chauffé est formé, de sorte qu'un verre de protection présentant une plaque frontale et des éléments d'espacement soit produit par un procédé de pressage de verre. Lesdits éléments d'espacement s'étendent verticalement depuis la plaque frontale. Le procédé de fabrication est simple, les coûts et le temps de fabrication sont réduits. Par ailleurs, la résistance du verre de protection est accrue du fait que la plaque frontale et les éléments d'espacement font partie intégrante et son aspect est sensiblement amélioré.
PCT/KR2000/000623 1999-06-15 2000-06-13 Plaque de protection en verre pour dispositif a ecran plat et son procede de fabrication WO2000076924A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU51136/00A AU5113600A (en) 1999-06-15 2000-06-13 Cover glass for flat panel display device and method for manufacturing the same
JP2001503395A JP2003502257A (ja) 1999-06-15 2000-06-13 平面パネル表示装置用カバーガラスとその製造方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1999/22381 1999-06-15
KR1019990022381A KR19990068730A (ko) 1999-06-15 1999-06-15 평판디스플레이의커버그라스

Publications (1)

Publication Number Publication Date
WO2000076924A1 true WO2000076924A1 (fr) 2000-12-21

Family

ID=19592566

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2000/000623 WO2000076924A1 (fr) 1999-06-15 2000-06-13 Plaque de protection en verre pour dispositif a ecran plat et son procede de fabrication

Country Status (5)

Country Link
JP (1) JP2003502257A (fr)
KR (2) KR19990068730A (fr)
CN (1) CN1221483C (fr)
AU (1) AU5113600A (fr)
WO (1) WO2000076924A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
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US6952980B2 (en) 2002-08-27 2005-10-11 Toyoda Iron Works Co., Ltd. Pedal device wherein non-operated position of operating portion is adjustable
US9376337B2 (en) 2012-06-14 2016-06-28 Nippon Electric Glass Co., Ltd. Method for producing glass sheet with bent portion and glass sheet with bent portion
US9701562B2 (en) 2012-10-10 2017-07-11 Nippon Electric Glass Co., Ltd. Mobile-display cover glass and method for manufacturing same
US10761563B2 (en) 2011-05-04 2020-09-01 Apple Inc. Housing for portable electronic device with reduced border region

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US8673163B2 (en) 2008-06-27 2014-03-18 Apple Inc. Method for fabricating thin sheets of glass
CN102388003B (zh) 2009-03-02 2014-11-19 苹果公司 用于强化用于便携式电子设备的玻璃盖的技术
US10189743B2 (en) 2010-08-18 2019-01-29 Apple Inc. Enhanced strengthening of glass
US8824140B2 (en) 2010-09-17 2014-09-02 Apple Inc. Glass enclosure
EP2457881B1 (fr) * 2010-11-30 2019-05-08 Corning Incorporated Procédé et appareil pour plier une feuille de matériau pour obtenir un article formé
US10781135B2 (en) 2011-03-16 2020-09-22 Apple Inc. Strengthening variable thickness glass
US9725359B2 (en) 2011-03-16 2017-08-08 Apple Inc. Electronic device having selectively strengthened glass
JP5434948B2 (ja) * 2011-03-31 2014-03-05 コニカミノルタ株式会社 カバーガラス板の製造方法
US9128666B2 (en) 2011-05-04 2015-09-08 Apple Inc. Housing for portable electronic device with reduced border region
US9944554B2 (en) 2011-09-15 2018-04-17 Apple Inc. Perforated mother sheet for partial edge chemical strengthening and method therefor
US9516149B2 (en) 2011-09-29 2016-12-06 Apple Inc. Multi-layer transparent structures for electronic device housings
US10144669B2 (en) 2011-11-21 2018-12-04 Apple Inc. Self-optimizing chemical strengthening bath for glass
JP5435018B2 (ja) * 2011-12-15 2014-03-05 コニカミノルタ株式会社 板ガラスブランクス，その製造方法及びカバーガラス板の製造方法
US10133156B2 (en) 2012-01-10 2018-11-20 Apple Inc. Fused opaque and clear glass for camera or display window
US8773848B2 (en) 2012-01-25 2014-07-08 Apple Inc. Fused glass device housings
US9946302B2 (en) 2012-09-19 2018-04-17 Apple Inc. Exposed glass article with inner recessed area for portable electronic device housing
US20150225275A1 (en) * 2012-09-25 2015-08-13 Konica Minolta, Inc. Glass component fabrication method
JP2014139122A (ja) * 2012-11-07 2014-07-31 Nippon Electric Glass Co Ltd ディスプレイ用カバーガラスの製造方法及びディスプレイ用カバーガラスの製造装置
KR101433072B1 (ko) * 2012-11-08 2014-08-25 (주)대호테크 휴대단말기 커버글라스 성형용 금형
US9886062B2 (en) 2014-02-28 2018-02-06 Apple Inc. Exposed glass article with enhanced stiffness for portable electronic device housing
KR101411469B1 (ko) * 2014-04-25 2014-06-24 트루다임(주) 열소성을 이용한 안티 글래어 커버글라스 제조장치 및 그 제조방법 및 그 안티 글래어 커버글라스
CN105528101A (zh) * 2014-10-21 2016-04-27 宸鸿科技(厦门)有限公司 触控面板及其立体盖板结构
CN104445888B (zh) * 2014-12-16 2017-06-23 蓝思科技（长沙）有限公司 一种曲面玻璃的成型方法
CN104556643B (zh) * 2015-01-27 2016-09-14 福耀玻璃工业集团股份有限公司 玻璃板的弯曲成型装置和方法
KR102399877B1 (ko) * 2015-06-11 2022-05-20 삼성디스플레이 주식회사 플레이트 연마 장치 및 연마 방법
CN107793019B (zh) * 2017-11-27 2020-03-20 先进数字显示（深圳）有限公司 高精度显示用平板玻璃基板的微结构热压的工艺方法
KR102480901B1 (ko) 2018-02-12 2022-12-26 삼성디스플레이 주식회사 디스플레이 윈도우 성형 방법
KR102594548B1 (ko) 2019-01-02 2023-10-27 삼성디스플레이 주식회사 윈도우, 윈도우의 제조 방법 및 윈도우를 포함하는 표시 장치

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JPS5913638A (ja) * 1982-07-08 1984-01-24 Matsushita Electronics Corp 箱形カバ−ガラスの製造方法および製造装置
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JPS5864230A (ja) * 1981-10-12 1983-04-16 Nec Kagoshima Ltd 表示管用カバ−ガラスの製造方法
JPH04155726A (ja) * 1990-10-19 1992-05-28 Nec Kagoshima Ltd 表示管用カバーガラスの製造方法
KR20000007216U (ko) * 1998-09-29 2000-04-25 송광우 광고판장치

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JPS5913638A (ja) * 1982-07-08 1984-01-24 Matsushita Electronics Corp 箱形カバ−ガラスの製造方法および製造装置
JPH04181634A (ja) * 1990-11-14 1992-06-29 Nec Corp フラットディスプレイパネル
KR960018732A (ko) * 1994-11-29 1996-06-17 양승택 측면접합을 이용한 대면적 평판 디스플레이 제조방법
KR970030075A (ko) * 1995-11-28 1997-06-26 엄길용 평판 디스플레이 장치용의 주상의 스페이서 제조방법

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6952980B2 (en) 2002-08-27 2005-10-11 Toyoda Iron Works Co., Ltd. Pedal device wherein non-operated position of operating portion is adjustable
US10761563B2 (en) 2011-05-04 2020-09-01 Apple Inc. Housing for portable electronic device with reduced border region
US9376337B2 (en) 2012-06-14 2016-06-28 Nippon Electric Glass Co., Ltd. Method for producing glass sheet with bent portion and glass sheet with bent portion
US9701562B2 (en) 2012-10-10 2017-07-11 Nippon Electric Glass Co., Ltd. Mobile-display cover glass and method for manufacturing same

Also Published As

Publication number Publication date
JP2003502257A (ja) 2003-01-21
CN1221483C (zh) 2005-10-05
KR20010049461A (ko) 2001-06-15
CN1313838A (zh) 2001-09-19
KR19990068730A (ko) 1999-09-06
AU5113600A (en) 2001-01-02
KR100359440B1 (ko) 2002-11-07

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