EP1903540A1 - Mit glastafel ausgestattete anzeigeeinrichtung und verfahren zu ihrer trennung - Google Patents

Mit glastafel ausgestattete anzeigeeinrichtung und verfahren zu ihrer trennung Download PDF

Info

Publication number
EP1903540A1
EP1903540A1 EP05765719A EP05765719A EP1903540A1 EP 1903540 A1 EP1903540 A1 EP 1903540A1 EP 05765719 A EP05765719 A EP 05765719A EP 05765719 A EP05765719 A EP 05765719A EP 1903540 A1 EP1903540 A1 EP 1903540A1
Authority
EP
European Patent Office
Prior art keywords
heat generating
adhesive layer
wire
display panel
generating body
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.)
Withdrawn
Application number
EP05765719A
Other languages
English (en)
French (fr)
Inventor
Nobuyoshi FUJITSU HITACHI PLASMA DISPLAY LTD. KONDO
takashi FUJITSU HITACHI PLASMA DISPLAY LTD. SASAKI
Akira FUJITSU HITACHI PLASMA DISPLAY LTD. OTSUKA
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.)
Hitachi Plasma Display Ltd
Original Assignee
Fujitsu Hitachi Plasma Display 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 Fujitsu Hitachi Plasma Display Ltd filed Critical Fujitsu Hitachi Plasma Display Ltd
Publication of EP1903540A1 publication Critical patent/EP1903540A1/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F3/00—Severing by means other than cutting; Apparatus therefor
    • B26F3/06—Severing by using heat
    • B26F3/08—Severing by using heat with heated members
    • B26F3/12—Severing by using heat with heated members with heated wires

Definitions

  • the present invention relates to a planar display device which makes it easy to separate a display panel (planar display device) composed mainly of glass and a metal plate (holding mechanism) to which this display panel is adhered, from each other, and a method for the separation.
  • planar display devices such as a PDP display device, a liquid crystal display device, an EL display device and an FED (field emission device) display device.
  • the display section (display panel) of these planar display devices is composed mainly of glass. Therefore, the planar display device composed of glass is firmly fixed on a chassis member (holding mechanism) constituted by a metal plate such as aluminum and iron plates with the use of double-sided adhesive tape, for the purpose of security of strength and heat radiation. Fixation of the display panel composed of glass on the chassis member generally requires strength to make separation difficult, and the display panel is firmly adhered and fixed.
  • the double-sided adhesive tape is cut or taken off by some method.
  • the double-sided adhesive tape has strong sticking force (adhesive force), it is difficult to separate the PDP panel main body and the chassis member from each other in an ordinary method.
  • a technique in which there are provided a display panel main body and a metallic chassis member which holds the display panel main body by the display panel main body being adhered thereto with adhesive; a heat generating member is arranged in the adhesive; and, when the display panel main body and the chassis member are separated from each other, the adhesive is melted or deteriorated by the heat of the heat generating member to reduce the adhesive force (Patent Document 1).
  • the thermal conductive sheet is configured by forming adhesive layers on both sides of a porous insulating sheet having thermal conductivity; in the case of adhering the display panel to the chassis member via the thermal conductive sheet, the display panel and the chassis member are adhered with the thermal conductivity sheet by adhering the thermal conductive sheet to the front of the chassis member first, and then overlapping the backside of the display panel on the thermal conductivity sheet of the chassis member; and, in the case of separating the display panel from the chassis member, a cutting member is inserted into the porous insulating sheet part of the adhesive sheet to cut it (for example, see Patent Document 2).
  • Patent Document 1 Japanese Patent Laid-Open Publication No.
  • Patent Document 2 Japanese Patent Laid-Open Publication No. 2004-4075
  • Patent Document 3 Japanese Patent Laid-Open Publication No. 2004-29630
  • Patent Document 3 Japanese Patent Laid-Open Publication No. 2004-184677
  • Patent Document 5 Japanese Patent Laid-Open Publication No. 2004-111092
  • Patent Document 6 Japanese Patent Laid-Open Publication No. 2004-309547
  • the present invention solves the above problems of the prior-art techniques, and an object of the present invention is to provide a planar display device which makes it possible to, at the time of disposal processing, easily separate a display panel main body and a chassis member without preparing large-sized equipment or special tools. Furthermore, another object of the present invention is to provide a planar display device using not special double-sided adhesive tape but inexpensive wire, the manufacturing cost of which is low.
  • a heat generating body is arranged within a plane at predetermined intervals, in contact with an adhesive layer for adhering the metal section and the glass section to each other, and, by heating the adhesive layer to reduce its adhesive force, the glass section and the metal plate are separated from each other.
  • a display device comprising a display panel composed mainly of glass, an adhesive layer arranged at the back side of the display panel, and a metal plate to which the display panel is adhered with the adhesive layer, wherein one or more wire-like heat generating bodies are arranged between the display panel and the metal plate, in contact with the adhesive layer, and the wire-like heat generating body is continuously arranged on a plane at predetermined intervals.
  • both end sections of the wire-like heat generating body protrude from the display device so that it is possible to cause electricity to flow through the heat generating body from the outside. Furthermore, according to the present invention, in the above display device, the wire-like heat generating body is electrically insulated, except for the vicinity of the end sections, and furthermore, both end sections of the wire-like heat generating body are arranged close to each other, protruding from the adhesive layer.
  • the distance of the wire-like heat generating body from the end section of the adhesive layer is set to 1/2 or less of the interval used for arrangement of the wire-like heat generating body, if there is not any other wire-like heat generating body between the wire-like heat generating body and the end section of the adhesive layer.
  • a separation method for a display device comprising a display panel composed mainly of glass, an adhesive layer arranged at the back side of the display panel, and a metal plate to which the display panel is adhered with the adhesive layer, in which one or more wire-like heat generating bodies are arranged between the display panel and the metal plate, in contact with the adhesive layer, and the wire-like heat generating body is continuously arranged on a plane at predetermined intervals, wherein, when the display panel and the metal plate are separated from each other, the adhesive layer is heated by causing electricity to flow through the wire-like heat generating body before separating the display panel and the metal plate.
  • the present invention it is possible to, when disposing of a display panel device which is composed of glass and which is adhered to a metal plate, easily separate the display panel and the metal plate from each other.
  • a PDP panel body 1 On a front glass plate 11 composed of glass, X electrodes 111 and Y electrodes 112 which repeatedly discharge electricity are arranged alternately in parallel. This electrode group is covered with a dielectric layer 113, and the surface of the layer is further covered with a protection layer 114 of MgO or the like. On a back glass plate 12, which is composed of glass similarly to the front glass plate 11, address electrodes 121 are arranged almost vertically to the X electrodes 111 and the Y electrodes 112, and they are further covered with a dielectric layer 122.
  • the panel is configured by attaching the front glass plate 111 and the back glass plate 12 to each other in a manner that the protection layer 114 and the top faces of the bulkheads 123 are in contact with each other, and enclosing discharge gas such as Ne and Xe.
  • the PDP module according to the present invention is configured to have the PDP panel body 1 provided with the front glass plate 11 and the back glass plate 12, and an adhesive layer 3 composed of, for example, double-sided adhesive tape, for adhering the back glass plate 12 of the PDP panel body 1 and the metal plate 2 which works as the holding section for the PDP panel body 1 to each other, as shown in Figure 3 , which is a plane view with a part of the adhesive layer 3 removed.
  • the present invention is characterized in that a wire-like heat generating body 4 is arranged at predetermined intervals in contact with the adhesive layer 3. Both end sections 41 of the wire-like heat generating body 4 are provided close to each other, and they protrude from the end section of the PDP module, that is, an adhesive layer end section 31.
  • Acrylic foam agent is used as the base material of the double-sided adhesive tape which forms the adhesive layer 3, and acrylic adhesive is used as the adhesive layer.
  • the temperature required to take off the double-sided adhesive tape is about 200°C as a practical temperature, though the adhesive force almost disappears at about 180°C.
  • the cross-sectional structure of the PDP module will be described with the cross-sectional view of Figure 4 .
  • the back glass plate 12 is adhered to the metal plate 2 with the adhesive layer 3. Between the back glass plate 12 and the metal plate 2, the heat generating body 4 is provided in contact with the adhesive layer 3.
  • the X driving circuit 21, the Y driving circuit 22, the power source circuit 24 and the like are mounted on the metal plate 2.
  • the X driving circuit 21 and an X electrode connection pad provided for the front glass plate 11 are connected via a flexible substrate 51, and the Y driving circuit 22 and a Y electrode connection pad provided for the front glass plate 11 are connected via a flexible substrate 52.
  • the address driving circuit 23 and an address electrode connection pad provided for the back glass plate 12 are connected via a flexible substrate, though it is not shown in Figure 4 .
  • the heat generating body 4 shown in Figure 3 is of material which is caused to heat by an electric current being applied, for example, copper or Nichrome wire. Except for the end sections 41, the surface is covered with an electrically insulating substance, especially at the parts in contact with the metal plate.
  • the end sections 41 are drawn out from the end face of the PDP panel module so that a current source not shown in the figure is connected to the end sections 41 when the PDP module is disposed of.
  • the wire-like heat generating body 4 is planarly arranged so that the intervals a, b and c between parts of the heat generating body 4 are almost the same.
  • the distances d and e of parts of the heat generating body 4 positioned near the end sections 31 of the adhesive layer 3, from the end sections 31 of the adhesive layer 3 are assumed to be half the intervals a, b and c between parts of the heat generating body 9 or less.
  • the end sections 41 of the heat generating body 4 protrude from the adhesive layer 3, being close to each other, in order that the heat generating body 4 can be easily connected to an external current source. If the end sections 41 of the wire-like heat generating body 4 are drawn out on both sides of the module, the end sections 41 are away from each other when the panel size is large. For example, in the case of a 40-type panel, the end sections 41 are away from each other by as much as 1 m, and it is difficult to connect them to an external current source.
  • the arrangement of the wire-like heat generating body 4 shown in the above embodiment is only an example.
  • a second embodiment of the present invention will be described with the use of the plane view of Figure 5 .
  • the wire-like heat generating body 4 is arranged symmetrically. By pulling the wire-like heat generating body 4 in the arrow direction after heating, the adhesive layer 3 is cut, and the back glass plate 12 and the metal plate 2 are separated from each other.
  • one wire-like heat generating body 4 is folded and arranged from the end of the PDP panel module to the other end thereof.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal (AREA)
  • Gas-Filled Discharge Tubes (AREA)
EP05765719A 2005-07-12 2005-07-12 Mit glastafel ausgestattete anzeigeeinrichtung und verfahren zu ihrer trennung Withdrawn EP1903540A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2005/012829 WO2007007396A1 (ja) 2005-07-12 2005-07-12 ガラス製パネルを有する表示装置およびその分離方法

Publications (1)

Publication Number Publication Date
EP1903540A1 true EP1903540A1 (de) 2008-03-26

Family

ID=37636804

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05765719A Withdrawn EP1903540A1 (de) 2005-07-12 2005-07-12 Mit glastafel ausgestattete anzeigeeinrichtung und verfahren zu ihrer trennung

Country Status (4)

Country Link
EP (1) EP1903540A1 (de)
JP (1) JPWO2007007396A1 (de)
CN (1) CN101180665A (de)
WO (1) WO2007007396A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2216147A1 (de) * 2009-02-10 2010-08-11 HTC Corporation Schneidgerät

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013035298A1 (ja) * 2011-09-08 2013-03-14 シャープ株式会社 表示装置及びその製造方法
CN105929584A (zh) * 2016-06-27 2016-09-07 中航华东光电有限公司 液晶屏均匀加热装置
CN113192427B (zh) * 2021-05-07 2023-03-31 维沃移动通信有限公司 折叠屏幕组件和电子设备

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2949226B1 (ja) * 1998-05-20 1999-09-13 工業技術院長 モニター用ブラウン管
JP2001282114A (ja) * 2000-03-30 2001-10-12 Hitachi Ltd プラズマディスプレイ装置
JP2002123187A (ja) * 2000-10-17 2002-04-26 Matsushita Electric Ind Co Ltd プラズマディスプレイ装置
JP2002123186A (ja) * 2000-10-17 2002-04-26 Matsushita Electric Ind Co Ltd プラズマディスプレイ装置
JP2004002548A (ja) * 2002-05-31 2004-01-08 Sekisui Chem Co Ltd 接合構造体及び接合構造体の解体方法
JP4029025B2 (ja) * 2002-10-31 2008-01-09 株式会社河合電器製作所 面状ヒータ
JP4007235B2 (ja) * 2003-04-02 2007-11-14 松下電器産業株式会社 プラズマディスプレイ装置
JP4023356B2 (ja) * 2003-04-02 2007-12-19 松下電器産業株式会社 プラズマディスプレイ装置の製造方法
JP4585234B2 (ja) * 2003-11-19 2010-11-24 パナソニック株式会社 プラズマディスプレイパネルの再生方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007007396A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2216147A1 (de) * 2009-02-10 2010-08-11 HTC Corporation Schneidgerät

Also Published As

Publication number Publication date
CN101180665A (zh) 2008-05-14
WO2007007396A1 (ja) 2007-01-18
JPWO2007007396A1 (ja) 2009-01-29

Similar Documents

Publication Publication Date Title
JP4431615B2 (ja) 平面表示装置
US7605525B2 (en) Plasma display panel assembly having a short circuit preventive unit
EP1903540A1 (de) Mit glastafel ausgestattete anzeigeeinrichtung und verfahren zu ihrer trennung
EP1381013B1 (de) Plasma-anzeigetafel
US7931771B2 (en) Method of manufacturing plasma display device
US20070247807A1 (en) Display device having display panel and method of disassembling the same
JP2008008779A (ja) ディスプレイパネルの点灯検査装置
TWI312164B (en) Manufacturing method for the plasma display equipment
JP4454549B2 (ja) 回路板の実装接合方法
KR20080003890A (ko) 글래스제 패널을 갖는 표시 장치 및 그 분리 방법
KR100918052B1 (ko) 플라즈마 디스플레이 장치
JP2004111092A (ja) プラズマディスプレイ装置の解体方法
KR100768236B1 (ko) 플라즈마 디스플레이 모듈, 플라즈마 디스플레이 패널과섀시의 부착 방법 및 분리 방법
JP2002123187A (ja) プラズマディスプレイ装置
KR100741132B1 (ko) 플라즈마 디스플레이 장치
US20130174411A1 (en) Disassembly method and disassembly device for display device
JP2002123186A (ja) プラズマディスプレイ装置
KR20070073971A (ko) 평면 표시 장치
JP4061961B2 (ja) プラズマディスプレイ装置の製造方法
JP4023356B2 (ja) プラズマディスプレイ装置の製造方法
JPWO2009050873A1 (ja) ディスプレイ装置の解体方法
JP4007235B2 (ja) プラズマディスプレイ装置
JP2005159212A (ja) ディスプレイパネルの電極接続方法、およびこれを用いたプラズマディスプレイの製造方法
JP2005315939A (ja) プラズマディスプレイ装置
JP2006007020A (ja) プラズマディスプレイ装置の解体方法

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20071109

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

RIN1 Information on inventor provided before grant (corrected)

Inventor name: KONDO, NOBUYOSHIFUJITSU HITACHI PLASMA DIISPLAY LT

Inventor name: OTSUKA, AKIRAFUJITSU HITACHI PLASMA DIISPLAY LTD.

Inventor name: SASAKI, TAKASHIFUJITSU HITACHI PLASMA DIISPLAY LTD

RIN1 Information on inventor provided before grant (corrected)

Inventor name: SASAKI, TAKASHIC/O HITACHI, LTD.

Inventor name: KONDO, NOBUYOSHIC/O HITACHI LTD.,

Inventor name: OTSUKA, AKIRAFUJITSU HITACHI PLASMA DIISPLAY LTD.

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: FUJITSU HITACHI PLASMA DISPLAY LIMITED

RIN1 Information on inventor provided before grant (corrected)

Inventor name: KONDO, NOBUYOSHIC/O HITACHI LTD.,

Inventor name: SASAKI, TAKASHIC/O HITACHI, LTD.

Inventor name: OTSUKA, AKIRAHITACHI LTD.

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: HITACHI PLASMA DISPLAY LIMITED

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Effective date: 20081210