JP2015085317A5

JP2015085317A5 -

Info

Publication number: JP2015085317A5
Application number: JP2014171102A
Authority: JP
Filing date: 2014-08-26
Publication date: 2017-04-20
Anticipated expiration: 2034-08-26

Description

上記の目的を達成するため、本発明は、表示装置を構成する一対のワークの少なくとも一方に対して、エネルギーの照射により硬化する接着剤を塗布する接着剤塗布装置において、前記ワークに対して相対移動しながら、前記接着剤を前記ワークに塗布する塗布部と、前記塗布部による前記接着剤の塗布の開始端から終了端の間での前記塗布部と前記ワークとの相対移動の速度の変化に応じて、前記ワークに塗布された前記接着剤に対する単位面積当たりの照射エネルギー量が一定となるように、エネルギーを照射し、前記接着剤を流動が抑制され、かつ、クッション性および接着性が維持された状態に仮硬化させる照射部と、を有することを特徴とする。 To achieve the above object, the present invention is to at least one of a pair of workpieces constituting the display device, the adhesive application device for applying adhesive which is cured by irradiation of energy, relative to the workpiece while moving, the a coating unit for applying adhesive to the workpiece, the speed change of the relative movement from the start end of the applicator of the adhesive by the coating section and the coating section between the end edge and the workpiece Accordingly, the energy applied to the adhesive applied to the workpiece is irradiated so that the amount of irradiation energy per unit area is constant, the adhesive is prevented from flowing, and the cushioning property and adhesiveness are And an irradiating part for temporary curing in a maintained state .

前記塗布部と前記ワークの相対移動の速度が、前記接着剤の塗布の終了端近傍において減速すると、前記照射部は、減速前の相対速度を維持する加速度で移動し、前記塗布部と前記ワークの相対移動の速度が、前記接着剤の塗布の終了端近傍において加速すると、加速前の相対速度を維持する減速度で移動してもよい。 When the speed of relative movement between the application unit and the workpiece is decelerated near the end of application of the adhesive, the irradiation unit moves at an acceleration that maintains the relative speed before deceleration, and the application unit and the workpiece are moved. If the relative movement speed is accelerated in the vicinity of the end of application of the adhesive , the movement may be performed at a deceleration that maintains the relative speed before acceleration.

前記塗布部は、前記ワークとの相対移動の速度に応じて、接着剤の吐出量を変化させてもよい。 The application unit may change the discharge amount of the adhesive according to the speed of relative movement with the workpiece.

前記塗布部は、前記ワークとの相対移動の速度が加速するに従って接着剤の吐出量を増加させ、前記ワークとの相対移動の速度が一定になると接着剤の吐出量を一定とし、前記ワークとの相対移動の速度が減速するに従って接着剤の吐出量を減少させてもよい。 The application unit increases the discharge amount of the adhesive as the speed of relative movement with the work increases, and makes the discharge amount of the adhesive constant when the speed of relative movement with the work becomes constant. The discharge amount of the adhesive may be decreased as the relative movement speed of the adhesive decreases.

［接着剤塗布装置］
接着剤塗布装置１は、上記の第１の実施形態と同様の装置である。本実施形態では、上述したように液晶パネルＳ１の表面に接着剤Ｒを塗布する例について説明するが、カバーパネルＳ２に塗布を行っても良く、あるいは両パネルに塗布を行っても良い。 [Adhesive application equipment]
The adhesive application device 1 is the same device as that in the first embodiment. In the present embodiment, an example in which the adhesive R is applied to the surface of the liquid crystal panel S1 as described above will be described. However, the cover panel S2 may be applied, or both panels may be applied.

［撮像処理、位置検出処理］
接着層Ｒ１が形成された液晶パネルＳ１は、不図示のピックアップ手段によって接着剤塗布装置１から搬出され、再び搬送装置４のコンベア４０上に載置され、カバーパネルＳ２と合流する。図９に示すように、液晶パネルＳ１とカバーパネルＳ２は、コンベア４０の横断方向に隣接して、かつ略平行に並ぶように載置される。図面では、液晶パネルＳ１がコンベア４０の奥側、カバーパネルＳ２がコンベア４０の手前側に載置される例を図示しているが、載置位置はこれに限られず、液晶パネルＳ１がコンベア４０の手前側、カバーパネルＳ２がコンベア４０の奥側に載置しても良い。液晶パネルＳ１とカバーパネルＳ２はコンベア４０上を搬送され、撮像部５の下まで移動する。
[Imaging processing, position detection processing]
The liquid crystal panel S1 on which the adhesive layer R1 is formed is unloaded from the adhesive applicator 1 by pick-up means (not shown), is again placed on the conveyor 40 of the transport device 4, and joins the cover panel S2. As shown in FIG. 9, the liquid crystal panel S <b> 1 and the cover panel S <b> 2 are placed so as to be adjacent to each other in the transverse direction of the conveyor 40 and substantially parallel. In the drawing, an example in which the liquid crystal panel S1 is placed on the back side of the conveyor 40 and the cover panel S2 is placed on the front side of the conveyor 40 is illustrated, but the placement position is not limited to this, and the liquid crystal panel S1 is placed on the conveyor 40 The cover panel S2 may be placed on the back side of the conveyor 40. The liquid crystal panel S <b> 1 and the cover panel S <b> 2 are conveyed on the conveyor 40 and moved to below the imaging unit 5.

Claims

In an adhesive application device that applies an adhesive that cures by irradiation of energy to at least one of a pair of workpieces constituting the display device,
While it is moving relative to the workpiece, a coating unit for applying the adhesive to the workpiece,
Per unit area with respect to the adhesive applied to the workpiece according to a change in the speed of relative movement between the application portion and the workpiece between the start end and the end of application of the adhesive by the application portion An irradiation unit that irradiates energy so that the amount of irradiation energy is constant , and temporarily cures the adhesive in a state where flow is suppressed and cushioning and adhesiveness are maintained ;
An adhesive application device characterized by comprising:

The speed of relative movement of the irradiating unit with respect to the workpiece changes independently of the coating unit in accordance with a change in speed of relative movement between the coating unit and the workpiece. Adhesive applicator.

In accordance with the change in the relative movement speed between the application part and the workpiece,
A state of moving relative to the workpiece while maintaining a certain distance from the application unit,
The adhesive application device according to claim 1 or 2, wherein a state of relative movement with respect to the workpiece is switched independently of the application unit.

When the speed of relative movement between the application unit and the workpiece is decelerated near the end of application of the adhesive, the irradiation unit moves at an acceleration that maintains the relative speed before deceleration, and the application unit and the workpiece are moved. When the speed of relative movement is accelerated near the end of application of the adhesive, it moves at a deceleration that maintains the relative speed before acceleration. Adhesive applicator.

The adhesive application device according to claim 1, further comprising a stage on which a workpiece is placed and moves relative to the application unit and the irradiation unit.

The adhesive application device according to claim 1, wherein the application unit includes a nozzle having a slit for discharging the adhesive from a continuous linear discharge port.

The adhesive application device according to claim 1, wherein the irradiation unit starts irradiation when the application unit reaches a start end.

The adhesive application device according to claim 1, wherein the application unit changes an ejection amount of the adhesive according to a speed of relative movement with the workpiece.

The application unit increases the discharge amount of the adhesive as the speed of relative movement with the work increases, and makes the discharge amount of the adhesive constant when the speed of relative movement with the work becomes constant. The adhesive application device according to claim 1, wherein the discharge amount of the adhesive is decreased as the relative movement of the motor decreases.

The adhesive application device according to claim 1, wherein the irradiation unit changes an energy irradiation amount in accordance with a change in a relative movement speed between the application unit and the workpiece.

The adhesive application device according to claim 1, wherein the workpiece is a cover panel, a touch panel, or a composite panel of a cover panel and a touch panel constituting a display device.

In an adhesive application method of applying an adhesive that is cured by energy irradiation to at least one of a pair of workpieces constituting the display device,
Coating portions of the adhesive, while moving relative to the workpiece, and applying the adhesive to the workpiece,
The irradiation part for irradiating energy to the adhesive, in accordance with the change in velocity of the relative movement of the said coating section work between the end edge from the start end of the adhesive coating by the coating unit, the state irradiation energy per unit area for the adhesive applied to the workpiece to be constant, and irradiating the energy, the adhesive flow is suppressed, and the cushioning property and adhesiveness is maintained A method of applying an adhesive, characterized by being temporarily cured .

The adhesive application device according to any one of claims 1 to 11,
A bonding portion for bonding the pair of workpieces through the adhesive;
A curing part that completely cures the adhesive between the pair of workpieces bonded together by the bonding part;
An apparatus for manufacturing a member for a display device, comprising:

The adhesive application method according to claim 12, the bonding portion is bonded to the pair of workpieces coated with the adhesive on at least one side via the adhesive,
A method for producing a member for a display device, wherein the curing unit cures the adhesive by irradiating energy that completely cures the adhesive between the pair of workpieces bonded by the bonding unit.