JPH09169461A - Polarizing plate protecting sheet peeling mechanism - Google Patents

Polarizing plate protecting sheet peeling mechanism

Info

Publication number
JPH09169461A
JPH09169461A JP7334541A JP33454195A JPH09169461A JP H09169461 A JPH09169461 A JP H09169461A JP 7334541 A JP7334541 A JP 7334541A JP 33454195 A JP33454195 A JP 33454195A JP H09169461 A JPH09169461 A JP H09169461A
Authority
JP
Japan
Prior art keywords
polarizing plate
peeling
protective sheet
air blowing
peeling roller
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.)
Pending
Application number
JP7334541A
Other languages
Japanese (ja)
Inventor
Tadashi Yamaguchi
忠氏 山口
Shinya Iwasaki
伸也 岩崎
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.)
NEC Engineering Ltd
Original Assignee
NEC Engineering 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 NEC Engineering Ltd filed Critical NEC Engineering Ltd
Priority to JP7334541A priority Critical patent/JPH09169461A/en
Publication of JPH09169461A publication Critical patent/JPH09169461A/en
Pending legal-status Critical Current

Links

Landscapes

  • Polarising Elements (AREA)
  • Liquid Crystal (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Abstract

PROBLEM TO BE SOLVED: To securely peel a protecting sheet from a polarizing plate in the case where the polarizing plate is flat or formed with a bow. SOLUTION: A surface protecting sheet 2 side, which is attached to the surface side of a polarizing plate 1, is fixed to a suction plate 4 by the vacuum suction, and a peeling roller 5 is pushed to one edge (right edge) of the polarizing plate 1 as a peeling start position, and while the peeling roller 5 is moved backward in the arrow direction. Tensile force is applied to two peeling tapes wound around the peeling roller 5, and air is blown to the polarizing plate 1 from plural nozzles 8 of an air blowing block 7, and while the air blowing block 7 is moved backward in the arrow direction with the peeling roller 5. In the case where the polarizing plate 1 itself is formed with a bow expressed with a full line part, which is curved in right of the polarizing plate 1, even in a position of the suction plate 4, which is not formed with a vacuum suction hole, the polarizing plate is returned to a flat position expressed with a dashed line by the force of the air blown from the nozzles 8 of the air blowing block 7, and a back surface protecting sheet 3 is securely peeled from the polarizing plate 1.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、液晶を挟む偏光板
に添付された保護シートを自動的に剥離する偏光板保護
シート剥離機構に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polarizing plate protective sheet peeling mechanism for automatically peeling a protective sheet attached to a polarizing plate sandwiching a liquid crystal.

【0002】[0002]

【従来の技術】まず、偏光板の保護構造を図4を参照し
て説明する。
2. Description of the Related Art First, a protective structure for a polarizing plate will be described with reference to FIG.

【0003】偏光板の保護構造は、偏光板1と、表面側
に添付された表面保護シート2と、裏面側に添付された
裏面保護シート3との3層から構成される。
The protective structure of the polarizing plate is composed of three layers of a polarizing plate 1, a surface protective sheet 2 attached to the front surface side, and a back surface protective sheet 3 attached to the back surface side.

【0004】次に、従来の偏光板保護シート剥離機構に
ついて図5及び図6を参照して説明する。
Next, a conventional polarizing plate protective sheet peeling mechanism will be described with reference to FIGS.

【0005】この偏光板保護シート剥離機構は、偏光板
の保護構造を真空吸着するための多数の穴があけられた
吸着プレート4と、両端を軸受で支えられて回転するこ
とができる剥離ローラ5と、剥離ローラ5に巻き付けら
れて張力を与えられた2本の剥離テープ6(例えばセロ
ファンテープ)とによって構成される。
This polarizing plate protective sheet peeling mechanism has a suction plate 4 having a large number of holes for vacuum-sucking the protective structure of the polarizing plate, and a peeling roller 5 capable of rotating with both ends supported by bearings. And two peeling tapes 6 (for example, cellophane tape) wound around the peeling roller 5 and given tension.

【0006】吸着プレート4に偏光板1の表面保護シー
ト2側を真空吸着によって固定し、偏光板1の一辺(図
5における右辺)を剥離開始位置として剥離ローラ5を
押しつけながら矢印方向に後退させる。すると、剥離ロ
ーラ5に巻き付けられた2本の剥離テープ6に張力を両
側から与えることにより、剥離テープ6の粘着面にくっ
ついた裏面保護シート3は、偏光板1から剥離される。
The surface protective sheet 2 side of the polarizing plate 1 is fixed to the suction plate 4 by vacuum suction, and one side (the right side in FIG. 5) of the polarizing plate 1 is set as the peeling start position, and the peeling roller 5 is pressed and retracted in the arrow direction. . Then, by applying tension to the two peeling tapes 6 wound around the peeling roller 5 from both sides, the back surface protective sheet 3 attached to the adhesive surface of the peeling tape 6 is peeled from the polarizing plate 1.

【0007】[0007]

【発明が解決しようとする課題】従来の偏光板保護シー
ト剥離機構においては、図5に示されるように、剥離ロ
ーラ5を裏面保護シート3に押しつけながら矢印方向に
後退させると、剥離テープ6の粘着面にくっついた裏面
保護シート3は、偏光板1から剥離される。しかし、吸
着プレート4の真空吸着穴のない箇所では、偏光板1自
体に反り(図6における偏光板1の右側の実線部分)が
ある場合、偏光板1は、垂れ下がって吸着プレート4の
真空吸着穴から離隔し、この結果、偏光板1の吸着プレ
ート4に対する吸着力は、失われる。このとき、裏面保
護シート3は、偏光板1から剥離されずに、偏光板1と
裏面保護シート3と表面保護シート2とが一体になって
吸着プレート4から外れるので、裏面保護シートの剥離
は、失敗する。
In the conventional polarizing plate protective sheet peeling mechanism, as shown in FIG. 5, when the peeling roller 5 is pressed against the back surface protective sheet 3 and retracted in the direction of the arrow, the peeling tape 6 is removed. The back surface protective sheet 3 attached to the adhesive surface is peeled off from the polarizing plate 1. However, when there is a warp in the polarizing plate 1 itself (the solid line on the right side of the polarizing plate 1 in FIG. 6) at a portion of the suction plate 4 where there is no vacuum suction hole, the polarizing plate 1 hangs down and the vacuum suction of the suction plate 4 occurs. The suction force of the polarizing plate 1 with respect to the suction plate 4 is lost as a result of being separated from the holes. At this time, the back surface protection sheet 3 is not peeled off from the polarizing plate 1, but the polarizing plate 1, the back surface protection sheet 3 and the surface protection sheet 2 are integrally removed from the suction plate 4, so that the back surface protection sheet is not peeled off. ,Fail.

【0008】そこで、本発明は、従来の偏光板保護シー
ト剥離機構の欠点を改良し、偏光板が平坦であっても、
反りがあっても、保護シートを偏光板から確実に剥離す
ることができるように図るものである。
Therefore, the present invention improves the drawbacks of the conventional polarizing plate protective sheet peeling mechanism, and even if the polarizing plate is flat,
Even if there is a warp, the protective sheet can be surely peeled from the polarizing plate.

【0009】[0009]

【課題を解決するための手段】本発明は、前記課題を解
決するため、次の手段を採用する。
The present invention employs the following means to solve the above-mentioned problems.

【0010】(1)多数の穴があけられた吸着プレート
と、剥離ローラと、剥離ローラに巻き付けられて張力を
与えられた複数本の剥離テープと、ノズルを有するエア
吹き付けブロックとから構成され、吸着プレートと剥離
テープとの間に配置された偏光板に添付された保護シー
トに沿って剥離ローラとエア吹き付けブロックとを同時
に同速度で移動させる偏光板保護シート剥離機構。
(1) Consists of a suction plate having a large number of holes, a peeling roller, a plurality of peeling tapes wound around the peeling roller and given tension, and an air blowing block having nozzles, A polarizing plate protective sheet peeling mechanism that moves a peeling roller and an air blowing block simultaneously at the same speed along a protective sheet attached to a polarizing plate arranged between a suction plate and a peeling tape.

【0011】(2)剥離ローラの軸受にエア吹き付けブ
ロックを取り付けた前記(1)記載の偏光板保護シート
剥離機構。
(2) The polarizing plate protective sheet peeling mechanism according to (1), wherein an air blowing block is attached to the bearing of the peeling roller.

【0012】(3)エア吹き付けブロックにその移動方
向に対して直角方向に複数のノズルを設けた前記(1)
記載の偏光板保護シート剥離機構。
(3) The air blowing block is provided with a plurality of nozzles at right angles to the moving direction of the block (1).
The polarizing plate protective sheet peeling mechanism as described in the above.

【0013】[0013]

【発明の実施の形態】本発明の一実施形態を図1ないし
図3を参照して説明する。
BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described with reference to FIGS.

【0014】まず、図1は、本発明の一実施形態におけ
る裏面保護シートが偏光板から剥離を開始するときの斜
視図である。
First, FIG. 1 is a perspective view of a back protective sheet according to an embodiment of the present invention when peeling from a polarizing plate is started.

【0015】偏光板保護シート剥離機構は、真空吸着す
るための多数の穴があけられた吸着プレート4と、両端
を軸受で支えられて回転することができる剥離ローラ5
と、剥離ローラ5に巻き付けられて張力を与えられた2
本の剥離テープ6(例えばセロファンテープ)と、複数
のノズル8を有するエア吹き付けブロック7とから構成
される。エア吹き付けブロック7は、剥離ローラ5の軸
受に取り付けられる。
The polarizing plate protective sheet peeling mechanism includes a suction plate 4 having a large number of holes for vacuum suction, and a peeling roller 5 which is rotatable with both ends supported by bearings.
And a tension applied to the peeling roller 5 by being wound around it.
It is composed of a stripping tape 6 (for example, cellophane tape), and an air blowing block 7 having a plurality of nozzles 8. The air blowing block 7 is attached to the bearing of the peeling roller 5.

【0016】次に、図2は、本発明の一実施形態におけ
る裏面保護シートが偏光板から剥離を開始した直後の正
面から見た断面図である。
Next, FIG. 2 is a cross-sectional view of the back surface protective sheet according to one embodiment of the present invention as viewed from the front immediately after starting peeling from the polarizing plate.

【0017】吸着プレート4に偏光板1の表面側に添付
された表面保護シート2側を真空吸着によって固定し、
偏光板1の一辺に(図2における右辺)を剥離開始位置
として剥離ローラ5を押しつけながら矢印方向に後退さ
せる。そして、剥離ローラ5に巻き付けられた2本の剥
離テープ6に張力を与え、また、エア吹き付けブロック
7の複数のノズル8からエア(例えば高圧窒素を使用す
る。)を偏光板1の複数箇所に対して吹き付けながら、
エア吹き付けブロック7を剥離ローラ5と共に矢印方向
へ後退させる。
The surface protection sheet 2 side attached to the surface side of the polarizing plate 1 is fixed to the suction plate 4 by vacuum suction,
The peeling roller 5 is pressed against one side of the polarizing plate 1 (the right side in FIG. 2) as the peeling start position and is moved backward in the direction of the arrow. Then, tension is applied to the two peeling tapes 6 wound around the peeling roller 5, and air (for example, high-pressure nitrogen is used) from a plurality of nozzles 8 of the air blowing block 7 is applied to a plurality of places of the polarizing plate 1. While spraying against
The air blowing block 7 is retracted together with the peeling roller 5 in the arrow direction.

【0018】続いて、図3は、本発明の一実施形態にお
ける裏面保護シートが偏光板から剥離しているときの中
間時点での正面から見た断面図である。このようにし
て、図2における偏光板1の右側の湾曲した実線部分の
ように、偏光板1自体に反りがある場合、吸着プレート
4の真空吸着穴のない箇所でも、エア吹き付けブロック
7の複数のノズル8から吹き出されるエアの力により、
偏光板1は、一点鎖線の平坦な位置に戻されるので、偏
光板1の垂れ下がり現象の発生を回避しながら、裏面保
護シート3を偏光板1から確実に剥離することができ
る。
Next, FIG. 3 is a sectional view as seen from the front at an intermediate point when the back surface protective sheet in one embodiment of the present invention is peeled from the polarizing plate. In this way, when the polarizing plate 1 itself has a warp like the curved solid line on the right side of the polarizing plate 1 in FIG. By the force of the air blown from the nozzle 8 of
Since the polarizing plate 1 is returned to the flat position indicated by the alternate long and short dash line, the back surface protective sheet 3 can be reliably peeled off from the polarizing plate 1 while avoiding the phenomenon of sagging of the polarizing plate 1.

【0019】[0019]

【発明の効果】以上の説明から明らかなように、本発明
によれば、剥離ローラと同時に同速度で移動するエア吹
き付けブロックを採用し、偏光板から裏面保護シートを
剥離する際、エアを偏光板に吹き付けながら行うことに
より、偏光板自体に反りがあって、偏光板が垂れ下がっ
て吸着プレートから外れても、偏光板はエア力により吸
着プレートの吸着面に戻って再び吸着される。したがっ
て、裏面保護シートは、偏光板から確実に剥離される。
As is apparent from the above description, according to the present invention, an air blowing block that moves at the same speed at the same time as the peeling roller is adopted, and when the back surface protective sheet is peeled from the polarizing plate, the air is polarized. By performing while spraying onto the plate, even if the polarizing plate itself warps and the polarizing plate hangs down and comes off the suction plate, the polarizing plate returns to the suction surface of the suction plate by the air force and is sucked again. Therefore, the back surface protective sheet is reliably peeled off from the polarizing plate.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の一実施形態における裏面保護シートが
偏光板から剥離を開始するときの斜視図である。
FIG. 1 is a perspective view of a back protective sheet according to an embodiment of the present invention when peeling from a polarizing plate is started.

【図2】本発明の一実施形態における裏面保護シートが
偏光板から剥離を開始した直後の正面から見た断面図で
ある。
FIG. 2 is a cross-sectional view seen from the front immediately after the back surface protective sheet in one embodiment of the present invention starts peeling from the polarizing plate.

【図3】本発明の一実施形態における裏面保護シートが
偏光板から剥離しているときの中間時点での正面から見
た断面図である。
FIG. 3 is a cross-sectional view seen from the front at an intermediate point when the back surface protective sheet in one embodiment of the present invention is peeled off from the polarizing plate.

【図4】偏光板の保護構造を示す斜視図である。FIG. 4 is a perspective view showing a protective structure of a polarizing plate.

【図5】従来の偏光板保護シート剥離機構における裏面
保護シートが偏光板から剥離を開始するときの斜視図で
ある。
FIG. 5 is a perspective view of the back surface protective sheet in the conventional polarizing plate protective sheet peeling mechanism when starting peeling from the polarizing plate.

【図6】従来の偏光板保護シート剥離機構における裏面
保護シートが偏光板から剥離を開始した直後の正面から
見た断面図である。
FIG. 6 is a sectional view seen from the front immediately after the back surface protective sheet in the conventional polarizing plate protective sheet peeling mechanism starts peeling from the polarizing plate.

【符号の説明】[Explanation of symbols]

1 偏光板 2 表面保護シート 3 裏面保護シート 4 吸着プレート 5 剥離ローラ 6 剥離テープ 7 エア吹き付けブロック 8 ノズル 1 Polarizing Plate 2 Surface Protective Sheet 3 Backside Protective Sheet 4 Adsorption Plate 5 Peeling Roller 6 Peeling Tape 7 Air Blowing Block 8 Nozzle

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 吸着プレートと、剥離ローラと、剥離ロ
ーラに巻き付けられて張力を与えられた剥離テープと、
ノズルを有するエア吹き付けブロックとから構成され、
吸着プレートと剥離テープとの間に配置された偏光板に
添付された保護シートに沿って剥離ローラとエア吹き付
けブロックとを同時に同速度で移動させることを特徴と
する偏光板保護シート剥離機構。
1. A suction plate, a peeling roller, and a peeling tape wound around the peeling roller and applied with tension,
And an air blowing block having a nozzle,
A polarizing plate protective sheet peeling mechanism characterized in that a peeling roller and an air blowing block are simultaneously moved at the same speed along a protective sheet attached to a polarizing plate arranged between an adsorption plate and a peeling tape.
【請求項2】 剥離ローラの軸受にエア吹き付けブロッ
クを取り付けたことを特徴とする請求項1記載の偏光板
保護シート剥離機構。
2. The polarizing plate protective sheet peeling mechanism according to claim 1, wherein an air blowing block is attached to the bearing of the peeling roller.
【請求項3】 エア吹き付けブロックにその移動方向に
対して直角方向に複数のノズルを設けたことを特徴とす
る請求項1記載の偏光板保護シート剥離機構。
3. The polarizing plate protective sheet peeling mechanism according to claim 1, wherein the air blowing block is provided with a plurality of nozzles in a direction perpendicular to the moving direction thereof.
JP7334541A 1995-12-22 1995-12-22 Polarizing plate protecting sheet peeling mechanism Pending JPH09169461A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7334541A JPH09169461A (en) 1995-12-22 1995-12-22 Polarizing plate protecting sheet peeling mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7334541A JPH09169461A (en) 1995-12-22 1995-12-22 Polarizing plate protecting sheet peeling mechanism

Publications (1)

Publication Number Publication Date
JPH09169461A true JPH09169461A (en) 1997-06-30

Family

ID=18278572

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7334541A Pending JPH09169461A (en) 1995-12-22 1995-12-22 Polarizing plate protecting sheet peeling mechanism

Country Status (1)

Country Link
JP (1) JPH09169461A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001209324A (en) * 1999-11-15 2001-08-03 Dainippon Printing Co Ltd Removable hologram adhesive label
EP1207728A1 (en) * 2000-11-09 2002-05-22 Gisulfo Baccini Automatic seperator and method to obtain circuits for microelectronics
JP2010056343A (en) * 2008-08-28 2010-03-11 Lintec Corp Sheet peeling device and sheet peeling method
WO2013018844A1 (en) * 2011-08-01 2013-02-07 住友化学株式会社 Method for producing polarizing plate
KR20140022666A (en) * 2012-08-14 2014-02-25 주식회사 엘지화학 Apparatus of removing release sheet of backpad for glass plate
JP2014181087A (en) * 2013-03-18 2014-09-29 Fujitsu Ltd Peeling device, and peeling method
KR20150101054A (en) * 2014-02-25 2015-09-03 삼성디스플레이 주식회사 Removal apparatus for release film of a polarizing plate and removal method for the same
CN109669286A (en) * 2019-02-19 2019-04-23 深圳市华星光电半导体显示技术有限公司 Polarized panel plastering device

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001209324A (en) * 1999-11-15 2001-08-03 Dainippon Printing Co Ltd Removable hologram adhesive label
EP1207728A1 (en) * 2000-11-09 2002-05-22 Gisulfo Baccini Automatic seperator and method to obtain circuits for microelectronics
US6681829B2 (en) 2000-11-09 2004-01-27 Gisulfo Baccini Automatic separator and method to obtain circuits for microelectronics
JP2010056343A (en) * 2008-08-28 2010-03-11 Lintec Corp Sheet peeling device and sheet peeling method
WO2013018844A1 (en) * 2011-08-01 2013-02-07 住友化学株式会社 Method for producing polarizing plate
JP2013033085A (en) * 2011-08-01 2013-02-14 Sumitomo Chemical Co Ltd Method for manufacturing polarizer
KR20140022666A (en) * 2012-08-14 2014-02-25 주식회사 엘지화학 Apparatus of removing release sheet of backpad for glass plate
JP2014181087A (en) * 2013-03-18 2014-09-29 Fujitsu Ltd Peeling device, and peeling method
KR20150101054A (en) * 2014-02-25 2015-09-03 삼성디스플레이 주식회사 Removal apparatus for release film of a polarizing plate and removal method for the same
CN109669286A (en) * 2019-02-19 2019-04-23 深圳市华星光电半导体显示技术有限公司 Polarized panel plastering device
CN109669286B (en) * 2019-02-19 2021-09-24 深圳市华星光电半导体显示技术有限公司 Polarizing plate attaching device

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