Method for disassembling image display apparatus, method for producing image display apparatus, method for producing support member, method for producing image display unit, method for producing working material, and image display apparatus

• US 7,150,804 B2
• Filed: 12/19/2002
• Issued: 12/19/2006
• Est. Priority Date: 12/25/2001
• Status: Expired due to Fees

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Tajima, Hisao
• Primary Examiner(s): Osele, Mark A.
• Application Number:
  US10/322,620
• Publication Number:
  US 20030121601A1
• Time in Patent Office: 1,461 Days
• Field of Search: 156/344, 156/584, 445/2, 294/264, 294/020.3, 297/62
• US Class Current: 156/718
• CPC Class Codes: G09F 7/18 Means for attaching signs, plates, panels, or boards to a supporting structure
• CPC Class Codes: Y10T 156/1059 Splitting sheet lamina in plane intermediate of faces
• CPC Class Codes: Y10T 156/11 Methods of delaminating, per se; i.e. , separating at bonding face
• CPC Class Codes: Y10T 156/1132 Using vacuum directly against work during delaminating
• CPC Class Codes: Y10T 156/1184 Piercing layer during delaminating [e.g., cutting, etc.]
• CPC Class Codes: Y10T 156/1189 with shearing during delaminating
• CPC Class Codes: Y10T 29/49821 by altering or destroying work part or connector
• CPC Class Codes: Y10T 29/53274 Means to disassemble electrical device

Abstract

A method for disassembling an image display apparatus in which an image display unit including an internal space and a support member for supporting the image display unit are adhered by an adhesive member includes the step of separating the image display unit and the support member. The separating step includes a step of inserting a substance between the image display unit and the support member.

Claims

1. A method for disassembling an image display apparatus in which an image display unit and a support member for supporting the image display unit are adhered by an adhesive member, wherein the image display unit includes a front side flat substrate and a rear side flat substrate with an internal space therebetween, the method comprising the steps of:

separating the image display unit and the support member, wherein said separating step includes a step of sequentially releasing, along the front side flat substrate or the rear side flat substrate, a bond between the image display unit and the support member through the adhesive member by a wire shaped cutting unit positioned between the image display unit and the support member, wherein the step of releasing is conducted while supporting the wire shaped cutting unit by two arms disposed outside of a region sandwiched by the image display unit and the support member, wherein

the adhesive member is formed from an acrylic material, and wherein

the step of sequentially releasing is performed in a state that one of the image display unit and the support member is fixed, and the other of the image display unit and the support member is held by a suction cup, while applying a force for separating the image display unit from the support member by a wedge member inserted therebetween, and while heating the wire shaped cutting unit to thereby heat the adhesive member.

2. A disassembling method according to claim 1, wherein the adhesive member is cut by the wire shaped cutting unit.

3. A disassembling method according to claim 2, wherein the wire shaped cutting unit cuts the adhesive member by contact with the adhesive member.

4. A disassembling method according to claim 1, wherein the wire shaped cutting unit is a linear member.

5. A disassembling method according to claim 1, wherein the wire shaped cutting unit is a cutting blade.

8. A method for producing a working material, comprising:

a step of obtaining a support member by a disassembling method according to claim 1; and

a step of rendering the support member obtained by said step easily workable.

9. A method for producing a working material, comprising:

a step of obtaining an image display unit by a disassembling method according to claim 1; and

a step of rendering the image display unit obtained by said step easily workable.

6. A method for producing a support member, comprising:

a step of separating, in an image display apparatus in which an image display unit including an internal space and a support member for supporting the image display unit are adhered by an adhesive member, with the image display unit including a front side flat substrate and a rear side flat substrate with an internal space therebetween, wherein said separating step includes a step of sequentially releasing, along the front side flat substrate or the rear side flat substrate, a bond between the image display unit and the support member through the adhesive member by a wire shaped cutting unit positioned between the image display unit and the support member, wherein the step of releasing is conducted while supporting the wire shaped cutting unit by two arms disposed outside of a region sandwiched by the image display unit and the support member, wherein

the adhesive member is formed from an acrylic material, and wherein

the step of sequentially releasing is performed in a state that one of the image display unit and the support member is fixed, and the other of the image display unit and the support member is held by a suction cup, while applying a force for separating the image display unit from the support member by a wedge member inserted therebetween, and while heating the wire shaped cutting unit to thereby heat the adhesive member.

7. A method for producing an image display unit, comprising:

a step of separating, in an image display apparatus in which an image display unit including an internal space and a support member for supporting the image display unit are adhered by an adhesive member, with the image display unit including a front side flat substrate and a rear side flat substrate with an internal space therebetween, wherein said separating step includes a step of sequentially releasing, along the front side flat substrate or the rear side flat substrate, a bond between the image display unit and the support member through the adhesive member by a wire shaped cutting unit positioned between the image display unit and the support member, wherein the step of releasing is conducted while supporting the wire shaped cutting unit by two arms disposed outside of a region sandwiched by the image display unit and the support member wherein

the adhesive member is formed from an acrylic material, and wherein

the step of sequentially releasing is performed in a state that one of the image display unit and the support member is fixed, and the other of the image display unit and the support member is held by a suction cup, while supplying a force for separating the image display unit from the support member by a wedge member inserted therebetween, and while heating the wire shaped cutting unit to thereby heat the adhesive member.