US5667624A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polarization plate gluing apparatus
Assignee: Okubo Co Ltd
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Filing: 1995-07-31
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Granted: 1997-09-16
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Expires: 2015-07-31
Abstract
Abstract The present invention relates to a polarization plate to a surface of a liquid crystal cell in a manufacturing process of a liquid crystal panel, where a rotary table is disposed with loading domains for the liquid crystal cell, with each domain sequentially moving to carry-in, cleaning, gluing and carry-out stations. The cleaning mechanism serves to cause an elastic plate to be pushed to the surface of the liquid crystal cell, thereby removing foreign objects. The gluing mechanism serves to cut the polarization plate on the carrier tape to a predetermined length, to thereby allow the same to be a polarization plate chip, which is in turn absorbed and supported by the glue head. The polarization chip is now torn apart from the carrier tape to thereby be glued to the surface of the liquid crystal cell. By this, process of picking up the polariation plate can be shortened and the position of the polarization plate can be determined in a state of the polarization plate being absorbed and supported by the glue head.
Inventors
- 👤 Takashi Akimoto
- 👤 Kiyomi Tagaya
- 👤 Susumu Ojima
- 👤 Seiki Takeda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:35
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1335; G02F1/133528; B; B08; B08B; B08B1/00; B08B1/30; Y; Y10; Y10T; Y10T156/00; Y10T156/12; Y10T156/1317; Y10T156/1322; Y10T156/14; Y10T156/17; Y10T156/1702; Y10T156/1705; Y10T156/1707; Y10T156/1744; Y10T156/1776; Y10T156/1798
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
138 words
A polarization plate gluing apparatus empolying a cleaning mechanism for cleaning a surface of a liquid crystal cell, and a gluing mechanism for gluing a polarization plate to the surface of the liquid crystal cell, where the gluing mechanism comprises: a feeding mechanism for feeding a predetermined length of strip-shaped material substantially overlapped by a polarization plate and a carrier tape; a half-cutting mechanism for cutting only the polarization plate of the strip-shaped material; a glue head for absorbing the polarization plate cut by the half-cutting mechanism to feed the same to the surface of the liquid crystal cell; a retracting mechanism for retracting the strip-shaped material in a state where the polarization plate is absorbed and supported by the glue head; and a winding mechanism for winding only the carrier tape after the polarization plate is removed.
Claim 2
Dependent Claim
138 words
A polarization plate gluing apparatus empolying a cleaning mechanism for cleaning a surface of a liquid crystal cell, and a gluing mechanism for gluing a polarization plate to the surface of the liquid crystal cell, where the gluing mechanism comprises: a feeding mechanism for feeding a predetermined length of strip-shaped material substantially overlapped by a polarization plate and a carrier tape; a half-cutting mechanism for cutting only the polarization plate of the strip-shaped material; a glue head for absorbing the polarization plate cut by the half-cutting mechanism to feed the same to the surface of the liquid crystal cell; a retracting mechanism for retracting the strip-shaped material in a state where the polarization plate is absorbed and supported by the glue head; and a winding mechanism for winding only the carrier tape after the polarization plate is removed.
Claim 3
Dependent Claim
53 words
A polarization plate gluing apparatus as defined in claim 1, wherein the gluing mechanism comprises a moving base for guiding the carrier tape at an approximate position where the polarization plate is absorbed by the glue head, and the moving base moves back and forth toward a feeding direction of the strip-shaped material.
Claim 4
Dependent Claim
44 words
A polarization plate gluing apparatus as defined in claim 1, wherein the gluing mechanism comprises a positioning determined mechanism for determining a position of the polarization plate against the glue head in a condition in which the glue head has absorbed the polarization plate.
Claim 5
Dependent Claim
79 words
A polarization plate gluing apparatus employing a cleaning mechanism for cleaning a surface of a liquid crystal cell and a gluing mechanism for gluing a polarization plate to the surface of the liquid crystal cell, where the cleaning mechanism comprises: a plate for being pushed to the surface of the liquid crystal cell to move relative to the liquid crystal cell; a hood for covering space around the plate; and an absorption apparatus for absorbing air within the hood.
Claim 6
Dependent Claim
79 words
A polarization plate gluing apparatus employing a cleaning mechanism for cleaning a surface of a liquid crystal cell and a gluing mechanism for gluing a polarization plate to the surface of the liquid crystal cell, where the cleaning mechanism comprises: a plate for being pushed to the surface of the liquid crystal cell to move relative to the liquid crystal cell; a hood for covering space around the plate; and an absorption apparatus for absorbing air within the hood.
Claim 7
Dependent Claim
71 words
A polarization plate gluing apparatus employing a cleaning mechanism for cleaning the surface of a liquid crystal cell glued to a polarization plate and a gluing mechanism for gluing crystal cell, where the cleaning mechanism includes an elastic plate for being pushed to the surface of the liquid crystal cell to move relative to the liquid crystal cell, and the plate moves in a lengthwise direction of the liquid crystal cell.
Claim 8
Dependent Claim
71 words
A polarization plate gluing apparatus employing a cleaning mechanism for cleaning the surface of a liquid crystal cell glued to a polarization plate and a gluing mechanism for gluing crystal cell, where the cleaning mechanism includes an elastic plate for being pushed to the surface of the liquid crystal cell to move relative to the liquid crystal cell, and the plate moves in a lengthwise direction of the liquid crystal cell.
Claim 9
Dependent Claim
278 words
A polarization plate gluing apparatus comprising: a table for moving a liquid crystal cell among a carry-in station, a cleaning station, gluing station and a carry-out station; a carry-in mechanism for carrying the liquid crystal cell to the carry-in station; a cleaning mechanism for cleaning the surface of the liquid crystal cell at the cleaning station; a gluing mechanism for gluing a polarization plate to the surface of the liquid crystal cell at the gluing station; and a carry-out mechanism for carrying out the liquid crystal cell from the carry-out station, where the cleaning mechanism further comprises: an elastic plate for being pushed to th surface of the liquid crystal cell to relatively move to a lengthwise direction of the liquid crystal cell against the surface of the liquid crystal cell; a hood for covering space around the plate; and an absorption apparatus for absorbing air within the hood, and where, the gluing mechanism further comprises: a feeding mechanism for feeding a predetermined length of strip-shaped material substantially overlapped by a polarization plate and a carrier tape; a half-cutting mechanism for cutting only the polarization plate of the strip-shaped material; a glue head for absorbing the polarization plate cut by the half-cutting mechanism to feed the same to the surface of the liquid crystal cell; a retracting mechanism for retracting the strip-shaped material in a state where the polarization plate is absorbed and supported by the glue head; a winding mechanism for winding only the carrier tape after the polarization plate is removed; and a position determination mechanism for determining a position of the polarization plate against the glue head when the glue head absorbs the polarization plate.
Claim 10
Dependent Claim
278 words
A polarization plate gluing apparatus comprising: a table for moving a liquid crystal cell among a carry-in station, a cleaning station, gluing station and a carry-out station; a carry-in mechanism for carrying the liquid crystal cell to the carry-in station; a cleaning mechanism for cleaning the surface of the liquid crystal cell at the cleaning station; a gluing mechanism for gluing a polarization plate to the surface of the liquid crystal cell at the gluing station; and a carry-out mechanism for carrying out the liquid crystal cell from the carry-out station, where the cleaning mechanism further comprises: an elastic plate for being pushed to th surface of the liquid crystal cell to relatively move to a lengthwise direction of the liquid crystal cell against the surface of the liquid crystal cell; a hood for covering space around the plate; and an absorption apparatus for absorbing air within the hood, and where, the gluing mechanism further comprises: a feeding mechanism for feeding a predetermined length of strip-shaped material substantially overlapped by a polarization plate and a carrier tape; a half-cutting mechanism for cutting only the polarization plate of the strip-shaped material; a glue head for absorbing the polarization plate cut by the half-cutting mechanism to feed the same to the surface of the liquid crystal cell; a retracting mechanism for retracting the strip-shaped material in a state where the polarization plate is absorbed and supported by the glue head; a winding mechanism for winding only the carrier tape after the polarization plate is removed; and a position determination mechanism for determining a position of the polarization plate against the glue head when the glue head absorbs the polarization plate.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-09-15 | 2001-03-17 | 2001-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-09-15 | 2005-03-17 | 2005-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-09-15 | 2009-03-17 | 2009-09-16 | $7700.00 | Window Closed / Lapsed |