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Continuous manufacturing system and continuous manufacturing method of liquid crystal display element

A technology for liquid crystal display elements and manufacturing systems, applied in the direction of chemical instruments and methods, control lamination, and other household appliances

Active Publication Date: 2013-04-03
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, as in Patent Document 2, speed control is performed so that when the next film sheet of the film sheet in progress reaches the front end of the peeling unit (when the rear end of the film sheet in progress is at the When the front end of the peeling unit) becomes V1

Method used

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  • Continuous manufacturing system and continuous manufacturing method of liquid crystal display element
  • Continuous manufacturing system and continuous manufacturing method of liquid crystal display element
  • Continuous manufacturing system and continuous manufacturing method of liquid crystal display element

Examples

Experimental program
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Effect test

no. 1 Embodiment approach

[0054] The continuous manufacturing system of the liquid crystal display element of the present embodiment has: a peeling unit that, when the film sheets of the polarizing film including the adhesive are adjacent to each other, uses the carrier film formed through the adhesive as the inner side. Turning over at the front end to peel off the film sheet from the carrier film; a winding unit that winds up the carrier film from which the film sheet has been peeled off by the peeling unit; and a sticking unit that, while transporting the liquid crystal panel, A liquid crystal display element is formed by affixing the film sheet peeled by the peeling unit to the liquid crystal panel via the adhesive. Moreover, it also has a speed control unit, which controls the winding unit and the pasting unit so that: in the pasting process of pasting the film sheet to the liquid crystal panel, the film sheet is moved toward the During the period from the sticking start time when the sticking of ...

Embodiment

[0080] use figure 1 In the production system of , a film sheet of a polarizing film was attached to a liquid crystal panel (40 inches) on both sides from the long side, and the presence or absence of air bubbles was evaluated.

[0081] When the rear end of the film sheet being pasted is located at any one of the upstream position in the conveying direction (comparative example) or the downstream position in the conveying direction (embodiment) with respect to the front end of the peeling unit, when the take-up speed V1 of the carrier film is In the case of decelerating from the sticking speed V2, the state of bubble generation in the liquid crystal panel after sticking the film sheet was evaluated.

[0082] exist Image 6 In the shown embodiment 1, the deceleration is carried out on the premise of making the winding speed V1 and the sticking speed V2 the same speed from the highest speed. After the front end of the coil, only the winding speed V1 is further decelerated so th...

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Abstract

A method of continuously manufacturing liquid crystal display devices uses, in a bonding process, velocity control of the velocity (V2) at which a sheet piece of a pressure-sensitive adhesive (131) containing polarizing film (13) is bonded, and the velocity (V1) at which a carrier film (12) is taken up. When bonding a sheet piece to a liquid crystal panel (4) has started until the time when the sheet piece is completely peeled off from the carrier film (12) V1=V2, and after the sheet piece has been peeled off from the carrier film, but before the bonding of the sheet piece to the liquid crystal panel (4) is completed V1<V2 to avoid that a next sheet piece is slightly curled on the front end of peeling means (40) to prevent the generation of air voids caused by adhesive lacking or adhesive deposits.

Description

technical field [0001] The present invention relates to a liquid crystal display element continuous manufacturing system and a liquid crystal display element continuous manufacturing method for forming a liquid crystal display element by adhering a polarizing film sheet peeled from a carrier film to a liquid crystal panel via an adhesive. Background technique [0002] A kind of continuous manufacturing method of such a liquid crystal display element is known, that is: use the carrier film of the film sheet formed with the polarizing film through the adhesive as the inside of the peeling unit to turn over at the front end of the peeling unit to polarize the polarizing film. The film sheet of the film is peeled from the carrier film together with the adhesive, and while the liquid crystal panel is being transported, the peeled film sheet of the polarizing film is attached to the liquid crystal panel via the adhesive by the sticking unit (Patent Document 1 ). [0003] In the c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1335G02F1/1333
CPCB32B37/12G02F1/133528B32B2457/20B32B2309/105B32B41/00G02F1/1303G02F1/13G02F1/1335
Inventor 秦和也平田聪近藤诚司
Owner NITTO DENKO CORP
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