CN104668152A

CN104668152A - Applicator, application method, and appratus and method for manufacturing a display device member

Info

Publication number: CN104668152A
Application number: CN201410705121.6A
Authority: CN
Inventors: 泷泽洋次
Original assignee: Shibaura Mechatronics Corp
Current assignee: Shibaura Mechatronics Corp
Priority date: 2013-11-27
Filing date: 2014-11-26
Publication date: 2015-06-03
Also published as: KR20150061593A

Abstract

The invention provides an applicator, an application method, and an apparatus and a method for manufacturing a display device member. The applicator comprises a detection part (30A) arranged in the relative movement direction of an application nozzle (21) and on the downstream side of the application nozzle (21) and used for detecting the distance between the detection part (30A) and a correcting part (11a) on a carrying stand (11) and the distance between the detection part (30A) and the surface of a work piece (S), a detection part (30B) arranged on the upstream side of the application nozzle (21) and used for detecting the distance between the detection part (30B) and the correcting part (11a) and the distance between the detection part (30B) and the surface of an adhesive agent applied to the work piece (S), and a control device (P) which corrects the detection values of the detection part (30A) and the detection part (30B) and calculates the application thickness of the adhesive agent (R). A plurality of sensors are applied to detect the application thickness of the adhesive agent efficiently and accurately.

Description

The manufacturing installation of apparatus for coating and method, display unit parts and manufacture method

Technical field

The present invention relates to a kind of apparatus for coating, coating process, the manufacturing installation of display unit parts and the manufacture method of display unit parts that following technology is improved, this technology be the pair of workpieces that such as forms display unit to fit and on workpiece the technology of coating adhesive.

Background technology

Generally speaking; with liquid crystal display or organic electroluminescent (electroluminescence; EL) display is the flat display unit (flat-panel monitor (flat panel display)) of representative, by the protection panel (skin plate (cover panel)) etc. of the touch-screen (touch panel) of display module, operation and protection surface is in addition stacked and form.(hereinafter referred to as workpiece (the work)) groups such as these display modules, touch-screen, skin plate enter in the framework of flat-panel monitor.

Display module possesses the multiple component such as display floater, drive circuit, printed base plate (coil type combines automatically (TAB)) comprising Polarizer etc., and is configured to multilayer.Skin plate also exist with touch-screen split and be configured to group and enter to have the composite panel of touch-screen.

Be provided with gap (gap) between each workpiece entering the stacked gained of composite panel of this framework in group, when air layer enters this gap, cause because of reflected ambient light the visuognosis degree of the display surface of display to reduce.Adopt with the following method for tackling this, namely when stacked each workpiece, by utilize between each workpiece of adhesive landfill (gap) and form adhesive layer.

In the formation of this adhesive layer and the laminating of workpiece, there is the method using adhesive sheet and the method using resin binder.Adhesive sheet price comparison compared with adhesive is high, needs the steps such as the stripping of peeling paper.Thus, from considerations such as the requirements of cost cutting in recent years, the laminating of adhesive is used to become main flow.

Such as, the adhesive of ultraviolet (ultraviolet, UV) hardening resin is coated on the coated face of workpiece from slit (slit) type nozzle by one side, and one side makes nozzle and workpiece relative movement.Thus, coating adhesive on the whole coated face of workpiece.

Distance piece (spacer) between the adhesive layer formed by adhesive has as each workpiece protects the function of workpiece.In addition, cause the area of workpiece also to become large because of display maximization etc., thus easily produce distortion.Therefore, protecting workpiece for absorbing distortion, the thickness of adhesive layer requirement being had to the tendency of increase.Such as require the thickness of several 100 μm.

[prior art document]

[patent document]

[patent document 1] Japanese Patent Laid-Open 2000-197844 publication

Summary of the invention

[inventing problem to be solved]

Whether obtain required thickness for managing described adhesive layer, and need to detect the thickness of be coated with adhesive.In addition, for preventing laminating bad, comparatively ideal is make the coating thickness of adhesive even, therefore needs throughout scope to a certain degree to detect the distribution of coating thickness.

Existing coating thickness test example is as by making afterwards before coating, a laser sensor (laser sensor) is mobile to carry out.That is, the distance by making the detection position of laser sensor terminate to hold the surface of the work detected to coating from the coating that the coating starting end of workpiece moves to subtend.

Secondly, on workpiece after coating adhesive, make the detection position of laser sensor return to the coating starting end of workpiece and again move to coating end end, detect the distance of the adhesive surface to coating thus.Then, coating thickness is determined by the distance to surface of the work that detects before obtaining and the difference of the distance to adhesive surface detected afterwards.

But, in this detection method, laser sensor must be made at least to move 2 times between the coating starting end of workpiece and coating terminate to hold.Therefore, the detection of coating thickness expends time in, and becomes the factor hindering the raising manufacturing efficiency.

The present invention is problem points for solving described prior art and proposes, its object is to provide a kind of apparatus for coating, coating process, and then providing a kind of with the manufacturing installation of the display unit parts of high efficient production height laminating quality and manufacture method, described apparatus for coating, coating process simultaneously can use multiple sensor efficiency good and detect the coating thickness coated on one side adhesive of adhesive exactly.

[technological means of dealing with problems]

For reaching described object, apparatus for coating of the present invention comprises: coating nozzles, to workpiece coating adhesive; Microscope carrier, one side supports the workpiece as the coating object of described coating nozzles, and one side is relative to described coating nozzles relative movement; And sensor, with the coating adhesive of the workpiece be supported on described microscope carrier in the face of to setting, and detecting distance; The described sensor of detecting distance comprises: the 1st sensor, on the coating direction of described microscope carrier relative to the adhesive of described coating nozzles relative movement, be configured in the downstream of described coating nozzles, detect from the distance of sensor to the correction unit be arranged on described microscope carrier and the distance to surface of the work; And the 2nd sensor, on the coating direction of described microscope carrier relative to the adhesive of described coating nozzles relative movement, be configured in the upstream side of described coating nozzles, detect from sensor to the distance of the correction unit be arranged on described microscope carrier and the distance to the adhesive surface be coated on workpiece; And described apparatus for coating comprises coating thickness test section, based on the distance to correction unit detected by described 1st sensor and the distance to surface of the work, with the distance to correction unit detected by described 2nd sensor and the distance to adhesive surface, and detect the coating thickness of adhesive.

Described correction unit also can be a part for microscope carrier.Described 1st sensor and described 2nd sensor also can share the correction unit as detected object.The detection position of described 1st sensor and described 2nd sensor, also can move along the track shared along with the relative movement of described coating nozzles.Sensor and described 2nd sensor of described 1st test section also can be respectively multiple.

Described coating nozzles also can be the gap nozzle with the slit sprayed from the ejiction opening of continuous print linearity by adhesive.

Described correction unit also comparable workpiece coating starting end upstream side and terminate to hold than the coating of workpiece and arrange to side farther downstream.

The position relationship of the installation site of described 1st sensor and the installation site of described 2nd sensor also can be fixing.

Described coating thickness test section also only can calculate the thickness of workpiece based on the distance to correction unit detected by described 1st sensor and the distance to surface of the work, and based on the distance to correction unit detected by described 2nd sensor and to described adhesive surface distance and calculate the aggregate thickness of workpiece and adhesive, and based on workpiece and adhesive aggregate thickness and only workpiece thickness and calculate the coating thickness of adhesive.

Described coating thickness test section also can utilize the difference of the distance to correction unit and the distance to correction unit detected by described 2nd sensor detected by described 1st sensor, and correct to the distance to surface of the work detected by described 1st sensor and by least one of distance to described adhesive surface that described 2nd sensor detects, and based on the distance to surface of the work detected by described 1st sensor, and the distance to described adhesive surface to be detected by described 2nd sensor and calculate the coating thickness of described adhesive.

Described coating thickness test section also can calculate the coating thickness of described adhesive based on the distance to surface of the work detected by described 1st sensor and the distance to described adhesive surface detected by described 2nd sensor, and the difference of the distance to correction unit utilizing the distance to correction unit that detected by described 1st sensor and detected by described 2nd sensor, and the value that calculates of described coating thickness is corrected.

Described apparatus for coating also can comprise driving mechanism, according to the change of the distance to correction unit detected by described 1st sensor or the distance to surface of the work, and coating nozzles is changed to the distance of surface of the work.

In addition, the invention that described each form also can be used as coating process is understood.In addition, the manufacture method of the manufacturing installation with the display unit parts of described apparatus for coating, the display unit parts comprising coating process is also a form of the present invention.

[effect of invention]

According to the present invention, multiple sensor efficiency simultaneously can be used good and detect the coating thickness coated on one side adhesive of adhesive exactly.

Accompanying drawing explanation

Fig. 1 is the schematic configuration diagram representing the 1st embodiment of the present invention.

Fig. 2 is the stereogram representing the 1st embodiment of the present invention.

Fig. 3 (1) ~ Fig. 3 (7) is the key diagram of the coating thickness detection ordering representing the 1st embodiment of the present invention.

Fig. 4 represents the installation site of test section of the 1st embodiment of the present invention and the key diagram of the distance of determination object.

Fig. 5 is the key diagram of example when representing that microscope carrier in the 1st embodiment of the present invention has a gradient.

Fig. 6 is the schematic configuration diagram of the manufacturing installation of the display unit parts of the 2nd embodiment of the present invention.

Fig. 7 (A), Fig. 7 (B) represent the schematic configuration of laminating apparatus and the figure of action.

Fig. 8 (A), Fig. 8 (B) are the schematic configuration diagram of curing system.

Fig. 9 is the schematic configuration diagram of carrying device.

Figure 10 (A) is the top view of the liquid crystal panel being formed with adhesive layer.Figure 10 (B) is the side view of the liquid crystal panel being formed with adhesive layer.Figure 10 (C) is the bottom view of skin plate.Figure 10 (D) is the side view of skin plate.

Figure 11 (A), Figure 11 (B) are the key diagrams of the configuration representing test section.

Figure 12 is the schematic configuration diagram of the carrying device of other embodiments of the present invention.

[explanation of symbol]

1: apparatus for coating

5: laminating apparatus

6: curing system

7: carrying device

8: image pickup part

9: control device

10: support portion

11: microscope carrier

11a, 11b: correction unit

12: driving mechanism

20: coating part

21: coating nozzles

30A, 30B: test section

51: chamber

52: lower side panel

53: epipleural

55: driving mechanism

61: mounting table

63: illumination unit

70: conveyer

71: holding element

71a, 71b: arm

72: track

100: the manufacturing installation of display unit parts

200: loader

300: emptier

A1, A2: a reference value

F: circulation path

H1, H2: detected value

L: display unit parts

M: arrow

N: inside casing

O: printing frame

P: control device

P1: coating starting end

P2: middle part

P3: coating terminal

PH1, PH2, PH3: coating thickness

R: adhesive

R1: adhesive layer

S: workpiece

S1: liquid crystal panel

S2: skin plate

S10: duplexer

T: storage tank

UV: ultraviolet

Z: deviation

Detailed description of the invention

With reference to accompanying drawing, embodiments of the present invention (hereinafter referred to as present embodiment) are specifically described.

[the 1st embodiment]

[formation]

First, be described with reference to the formation of Fig. 1 and Fig. 2 to the apparatus for coating 1 (hereinafter referred to as this device) of present embodiment.In addition, in figure, coating nozzles 21 is set to coating direction by the movement of microscope carrier 11 relative to the direction of microscope carrier 11 relative movement.And, being namely coated with of workpiece S is started side and be set to upstream side, and namely one side of side in contrast to this is coated with terminates side and be set to downstream.Be coating direction (representing with arrow M) from left to right in Fig. 1, and left side is upstream, right side is downstream.

Workpiece S as the application of this device 1 is by bonded to each other and form the workpiece S of display unit, such as, for forming the Liquid Crystal Module of liquid crystal display and skin plate etc.In addition, as the coating object of adhesive R, the composite panel of preferred skin plate, touch-screen or skin plate and touch-screen.

This device 1 comprises support portion 10, coating part 20, test section 30A and test section 30B.Support portion 10 is the constituting portion supported the workpiece S of coating adhesive R.Support portion 10 comprises microscope carrier 11 and driving mechanism 12.Microscope carrier 11 is plates (plate) that upper surface becomes smooth horizontal plane.Coated face workpiece S is upward made in the upper surface mounting of this microscope carrier 11.Although not shown, microscope carrier 11 is configured with the adsorbing mechanisms such as vacuum cup (vacuum chuck) or electrostatic chuck, at microscope carrier 11 upper surface absorption holding workpiece S.

Microscope carrier 11 is arranged in the mode reciprocated in the horizontal direction by driving mechanism 12.As driving mechanism 12, such as, can be set to the ball screw (ball screw) rotated by drive source.But, as long as the device for workpiece S can be made to reciprocate in the horizontal direction, then also can be any device.The beginning of the movement of driving mechanism 12 pairs of microscope carriers 11, stopping and translational speed is controlled by control device P.

The part of microscope carrier 11 exposed portion namely except the mounting part of workpiece S is as correction unit 11a, correction unit 11b.Correction unit 11a, correction unit 11b are the region of microscope carrier 11 upper surface in the direction (width) orthogonal with coating direction as shown in Figure 2.Correction unit 11a is positioned at the end side in coating direction, and correction unit 11b is positioned at its contrary side.

Coating part 20 is the constituting portion to workpiece S coating adhesive R.Coating part 20 comprises storage tank (tank) T, circulation path F and coating nozzles 21.Storage tank T is the container of storage adhesive R.Circulation path F is the element being sent the adhesive R in storage tank T by pipe arrangement, valve, pump etc.

Coating nozzles 21 is slit coater, comprises the slit adhesive R sent in circulation path F being supplied to workpiece S.Slit is parallel with the coated face of workpiece S and the opening slenderly extended on the direction orthogonal with coating direction.The length of the length direction of slit is equal with the width of workpiece S or slightly short compared with it.

In addition, coating nozzles 21 is arranged in the mode be elevated between application place and position of readiness on the direction orthogonal with the coated face of workpiece S by such as not shown driving mechanism.Application place is be coated on the position of the mode on workpiece S close to workpiece S with the adhesive R that the slit from coating nozzles 21 can be supplied.Position of readiness is the position that the adhesive R of coating and the adhesive R of coating nozzles 21 front end can be cut off.

The coating thickness of adhesive R by the slit of coating nozzles 21 and the distance of workpiece S and adhesive R spray volume and adjust.For obtaining desired coating thickness, the application place of coating nozzles 21 can adjust in coating action or in advance.Adhesive R to control from the spray volume of coating nozzles 21 by the valve of control device P and pump controls and regulates.

In addition, as long as adhesive R is the resin by hardening from external irradiation energy.Such as, ultraviolet (UV) hardening resin or thermosetting resin is considered.In present embodiment, ultraviolet (UV) hardening resin is used to be described.

Test section 30A, test section 30B are detected to the constituting portion of the distance of detected object by sensor.Test section 30A arranges the downstream of coating nozzles 21 in the coating direction, detects the distance on the workpiece S surface to coating.Test section 30B arranges the upstream side of coating nozzles 21 in the coating direction, detects the distance on the adhesive R surface to coating.

In addition, the sensor of test section 30A, test section 30B detects the distance to the correction unit 11a of microscope carrier 11.And then the sensor of test section 30A detects the distance to the correction unit 11b of microscope carrier 11.

The position relationship of the installation site of the installation site of the sensor of test section 30A and the sensor of test section 30B is fixing.It realizes by following method, is namely such as fixed on the support portion shared set on device, though or the support portion be fixed on as the mutual position relationship of point body component.Typically consider to install being fixed on the support portions such as the framework on device.In addition, being spaced apart on the coating direction of test section 30A, test section 30B and coating nozzles 21 is fixing.But the lifting of coating nozzles 21 between position of readiness and application place is carried out independent of test section 30A, test section 30B.

The sensor that test section 30A has is set to the 1st sensor, and the sensor that test section 30B has is set to the 2nd sensor.As sensor, be set to the sensor of the distance detected from sensor to detected object.More specifically be set to as lower sensor, its can detect from sensor to the distance of the correction unit 11a be arranged on microscope carrier 11, correction unit 11b, from sensor to the distance on workpiece S surface and from sensor to the distance etc. on the adhesive R surface be coated on workpiece S.Such as use laser sensor." from sensor " refers to " reference position from regulation ", different according to the operation method of the distance of sensor.Such as sensor lower surface can be set to the reference position of regulation, but be not limited thereto.

The sensor of test section 30A, test section 30B exists multiple respectively.Multiple sensors of test section 30A, test section 30B such as equally spaced configure multiple on parallel with the coated face of workpiece S and orthogonal with coating direction direction.Multiple sensor one_to_one corresponding of multiple sensor of the test section 30A in downstream and the test section 30B of upstream side.In the detection position of the upstream side pair of sensors corresponding with downstream, move along the same track on microscope carrier 11 along with the movement of microscope carrier 11.

Detection, the calculating of coating thickness of test section 30A, test section 30B are processed by control device P.That is, control device P has the function as coating thickness test section.In addition, control device P controls the spray volume of the movement of microscope carrier 11, the lifting of coating part 20 and adhesive R.As control device P, realize by such as special circuit or with the computer comprising central processing unit (central processing unit, CPU) and memory of established procedure running.The detailed content of the action in each portion utilizing the control of this control device P to carry out is described in the effect hereafter as present embodiment.

[effect]

With reference to the pie graph of Fig. 1, Fig. 2, the key diagram of Fig. 3 (1) ~ Fig. 3 (7) and being described the effect of the present embodiment with above formation.In addition, the position of the microscope carrier 11 in Fig. 1 ~ Fig. 3 (7), workpiece S, coating nozzles 21, test section 30A, test section 30B and size etc., be only for illustration of the performance of expedient property.In addition, the coating of adhesive R is from the coating starting end of workpiece S, and terminates end end in coating.

(detection of test section)

Below, be described with reference to Fig. 3 (the 1) ~ order of Fig. 3 (7) to the check processing of test section 30A, test section 30B.Following (1) ~ (7) correspond respectively to Fig. 3 (1) ~ Fig. 3 (7).

(1) test section 30A is utilized to detect correction unit 11a

First, microscope carrier 11 starts mobile, and when correction unit 11a arrives immediately below test section 30A, the 1st sensor of test section 30A detects the distance to correction unit 11a surface.The value detected stores in memory as a reference value A1 being used for correcting by control device P.

(2) test section 30A is utilized to detect workpiece S

Along with the movement of microscope carrier 11, the 1st sensor of test section 30A continues to detect, and when microscope carrier 11 arrives the coating starting end of the workpiece S before coating, detects the distance to workpiece S surface.Terminate end from the coating starting end of workpiece S to coating and carry out this detection continuously.The value detected stores in memory as the detected value H1 of the height of the workpiece S upper surface represented before coating adhesive R by control device P.

(3) coating nozzles 21 is utilized to start coating

Detect the midway of the distance of the workpiece S to coating at test section 30A, time directly over the coating starting end that the coating nozzles 21 being positioned at position of readiness arrives workpiece S, microscope carrier 11 temporarily stops.Then, the coating nozzles 21 being positioned at position of readiness starts to decline and stops after arrival application place, and when spraying adhesive R from coating nozzles 21, adhesive R is supplied to workpiece S.Meanwhile, microscope carrier 11 starts mobile again.Thus, start to workpiece S surface coating adhesive R.

(4) test section 30B is utilized to detect correction unit 11a

Along with the movement of microscope carrier 11, when correction unit 11a arrives immediately below test section 30B, the 2nd sensor of test section 30B detects the distance to correction unit 11a surface.The value detected stores in memory as a reference value A2 being used for correcting by control device P.

On the other hand, when correction unit 11b arrives immediately below test section 30A, the 1st sensor of test section 30A detects the distance to correction unit 11b surface.The value detected stores in memory as a reference value B1 being used for correcting by control device P.

(5) test section 30B is utilized to detect adhesive R

2nd sensor of test section 30B continues along with the movement of microscope carrier 11 to detect, and when microscope carrier 11 arrives the coating starting end of the workpiece S after coating, starts to detect the distance to the adhesive R surface completing coating.This detection is carried out continuously to end end from the coating starting end of workpiece S.The value detected stores in memory as the detected value H2 of the height on the adhesive R surface after expression coating by control device P.

(6) coating of coating nozzles 21 terminates

The midway of the workpiece S after test section 30B detects coating, when the coating that coating nozzles 21 arrives workpiece S terminates directly over end, microscope carrier 11 temporarily stops.Then, coating nozzles 21 terminate adhesive R ejection and till rising to position of readiness.Thus, the adhesive R of workpiece S side and coating part 20 side is cut off.Meanwhile, microscope carrier 11 starts to move to coating direction again.

(7) terminate to utilize test section 30B to detect adhesive R

When test section 30B detect terminate end to the coating of workpiece S time, microscope carrier 11 stops.In addition, the workpiece S being coated with adhesive R is taken out of by carrying device, presses other workpiece etc. in a vacuum and fits in laminating apparatus by press device.And then the workpiece S after laminating is moved to by irradiating UV light by carrying device and makes the curing system that adhesive R formally hardens.

As mentioned above, in present embodiment, can coated on one side adhesive R, one side utilizes the 1st sensor detect the height of workpiece S upper surface and utilize the 2nd sensor to detect the height on adhesive R surface.That is, the application step of adhesive R comprises the state and coating adhesive R that coating adhesive R and the height that utilizes the 1st sensor workpiece S to detect upper surface carry out simultaneously and the state that the height utilizing the 2nd sensor to detect adhesive R surface is carried out simultaneously.So comprise the state of " coated on one side one side detects ", " one side detects coated on one side ", therefore can carry out the good coating of efficiency and detection.

(calculating of coating thickness)

When test section 30B detects the distance to adhesive R surface, the coating thickness test section of control device P calculates the coating thickness of adhesive R and stores in memory.That is, coating thickness test section obtains the height (coating thickness) of be coated with adhesive R by the difference of the detected value H2 and detected value H1 that obtain same detection point.

But, as shown in Figure 4, this detected value H1 and detected value H2 detects respectively by the 1st sensor and the 2nd sensor, exist in the difference of two detected values by each sensor relative to the support portion as detection reference allocation position (setting height(from bottom)) caused by error (relative deviation).That is, there is deviation with the detected value of the 2nd sensor corresponding to its test section 30B in the 1st sensor of test section 30A.This deviation is represented with Z in Fig. 4.

In present embodiment, the error calculating value caused by this deviation Z can be eliminated.By so eliminating 2 test section 30A, the situation of deviation of detected value of sensor of test section 30B is called correction.The calculation method of calibrated coating thickness as described below.

First, as following (a) ~ (d), the situation of detection reference value A1, detected value H1, a reference value A2, detected value H2 is described above.

A 1st sensor of () test section 30A detects from reference position to the distance of correction unit 11a as a reference value (A1).

B 1st sensor of () test section 30A detects from reference position to the distance of workpiece S as detected value (H1).

C 2nd sensor of () test section 30B detects from reference position to the distance of correction unit 11a as a reference value (A2).

D 2nd sensor of () test section 30B detects from reference position to the distance of coating surface as detected value (H2).

Herein, as shown in Figure 4, such as premised on the relation of A1 > A2, coating thickness is obtained by following computing with A1, A2 > H1 > H2.In addition, this prerequisite only example for convenience of description, even if the magnitude relationship of each value is different according to the difference of the position of sensor etc., also can apply same procedure.In addition, in below illustrating, when thickness etc. usually should with on the occasion of the value obtained be calculate with negative value, be set to the absolute value of this value.

(substrate thickness)=(A1-H1)=from correction unit 11a to the distance of substrate surface

(substrate thickness+coating thickness)=(A2-H2)=from correction unit 11a to the distance of coated face

Coating thickness α=(substrate thickness+coating thickness)-(substrate thickness)=(A2-H2)-(A1-H1)

Below, basic form should be called by (A2-H2)-(A1-H1).

This formula utilizes the detected value of same rectifying plane height to same sensor to correct, and obtain different sensors corrected value separately difference each other.Thus, the alignment error of the relativity of test section 30A and test section 30B and Z become that it doesn't matter.

In addition, each sensor also can be used to detect identical correction unit 11a and the difference value of a reference value A1 that obtains and a reference value A2, offset (offset) by making the detected value H1 of test section 30A or test section 30B or detected value H2 and carry out correcting action.Such as, also coating thickness α is obtained by any one in following formula (1), formula (2).

α={ H2+ (A1-A2) }-H1 formula (1)

α=H2-{H1-(A1-A2) } formula (2)

(A1-A2) in this formula (1), formula (2) is equivalent to the difference (Z) of described a reference value A1 and a reference value A2.And formula (1) can derive as described below from described basic form.

α＝(A2-H2)-(A1-H1)

＝A2-H2-A1+H1

＝A2-A1-H2+H1

＝-H2-(A1-A2)+H1

This formula is only the on the contrary positive and negative of calculated value, with

{ H2+ (A1-A2) }-H1 formula (1)

Identical.In this formula (1), using the difference value of a reference value A1 and a reference value A2, offseting correcting action by making the detected value H2 of test section 30B.

In addition, formula (2) also can derive from described basic form as described below.

α＝(A2-H2)-(A1-H1)

＝A2-H2-A1+H1

＝A2-A1-H2+H1

＝-H2-(A1-A2)+H1

H2-H1+(A1-A2)

=H2-{H1-(A1-A2) } formula (2)

Identical.In this formula (2), using the difference value of a reference value A1 and a reference value A2, offseting correcting action by making the detected value H1 of test section 30A.

In addition, computationally also can use the difference of a reference value A1, a reference value A2, revise (skew) to correct by difference (coating thickness before the namely revising) result to detected value H1, detected value H2.That is, also coating thickness α is obtained by following formula (3).

α=(H1-H2)-(A1-A2) formula (3)

(A1-A2) in this formula (3) is equivalent to the difference (Z) of described a reference value A1 and a reference value A2, and (H1-H2) is equivalent to the difference of described detected value H1 and detected value H2.And formula (3) can derive as described below from described basic form.

α＝(A2-H2)-(A1-H1)

＝A2-H2-A1+H1

＝A2-A1-H2+H1

＝(-H2+H1)-(A1-A2)

=(H1-H2)-(A1-A2) formula (3)

In this formula (3), use the difference of a reference value A1 and a reference value A2, the difference result of detected value H1 and detected value H2 is revised.

Described formula (1) ~ formula (3) is used as the Z of the difference value of a reference value A1 and a reference value A2, is corrected the departure caused by the difference of sensor by any one in following.

(1) the detected value H2 of test section 30B is made to offset

(2) the detected value H1 of test section 30A is made to offset

(3) the detected value H1 of test section 30A, test section 30B and the differential offset of detected value H2 is made

This computing is carried out based on the 1st corresponding sensor of test section 30A and test section 30B and the 2nd sensor value each other.Coating thickness test section by so obtaining the coating thickness of the adhesive R terminating end from coating starting end to coating like that, and makes the coating thickness distribution of adhesive R on whole surface be coated with.

In addition, correction unit 11a, correction unit 11b are the region with regulation area, even if therefore the 1st sensor of correspondence and the 2nd sensor move at same track, the detection position on coating direction also produces deviation sometimes.Therefore, also can be used in the detected value of the high ad-hoc location of the possibility of same position in the value that correction unit 11a, correction unit 11b detect in relative movement or special time, also can use the mean value of multiple detected value.

And then, when microscope carrier 11 exists strain or gradient, cause therefrom sometimes producing gradient at workpiece S.The Accuracy of existence to coating thickness measured value of this strain, gradient is little.Its reason is, coating thickness is obtained by (H2-H1), even if therefore have strain or gradient, each mutual alignment relation detecting position also becomes identical.Such as shown in Figure 5, coating starting end is set to P1, middle part is set to P2, coating terminal is set to P3.Coating thickness PH1=(H2 is utilized at P1 _p1-H1 _p1) calculate, utilize coating thickness PH2=(H2 at P2 _p2-H1 _p2) calculate, utilize coating thickness PH3=(H2 at P3 _p3-H1 _p3) calculate.Suppose P1 and P3 linearity ground inclination 5mm, P3 is lower than P1 (-5mm).Even if in this case, the coating thickness that each detecting position due to correspondence is set up utilizes difference to obtain as described, and therefore the impact of-5mm gradient does not display.In addition, Fig. 5 is as making coating nozzles 21 represent relative to the coating in the relative motion of workpiece S movement.

But, such as when microscope carrier 11 exist strain or utilize driving mechanism that microscope carrier 11 is divided a word with a hyphen at the end of a line divide a word with a hyphen at the end of a line height relative in the uneven situation of coating nozzles 21, workpiece S-phase for coating nozzles 21 relative movement produce gradient.That is, coated face is relative to the height change of coating nozzles 21.When the slit of coating nozzles 21 and the distance (gap) of coated face are when being coated with midway and changing, impact is brought on the homogenising of coating thickness.In present embodiment, by using a reference value A1 and a reference value B1 to detect gradient, the slit of coating nozzles 21 and the distance (gap) of coated face are revised and realized the homogenising of coating thickness.

Namely, even if suppose that microscope carrier 11 moves, as long as be parallel and smooth, then utilize that identical sensor (being the sensor of test section 30A in Fig. 3 (1) ~ Fig. 3 (7)) detects the correction unit 11a of microscope carrier 11 front end and the value that obtains and the correction unit 11b detecting microscope carrier 11 rear end and the value that obtains should become identical detected value.That is, described a reference value A1 and a reference value B1 are identical (zero differential).

But when there is device as described and forming upper issuable gradient (change, error), a reference value A1 and a reference value B1 are not identical.Such as, when the state being positioned at the position of test section 30A from correction unit 11a when microscope carrier 11 moves and makes correction unit 11b arrive the position of test section 30A, microscope carrier 11 tilts to the direction away from coating nozzles 21.Thus, a reference value B1 is detected as the value larger than a reference value A1.Namely the difference of described value can be regarded as gradient (change, error).Therefore, as shown in Figure 5, in next coating, be incorporated into the gradient state of this microscope carrier 11 and in relative movement, make the height change of coating nozzles 21, the distance of the coated face of workpiece S and coating nozzles 21 can be made thus to fix and make coating thickness homogenising.

Though also depend on test section 30A, test section 30B and coating nozzles 21 relative position relation in the coating direction, but such as when test section 30A early than start in workpiece S end coating arrive the position relationship of correction unit 11b, the gradient of substrate can be detected before starting to be coated with, therefore can in relative movement, make the height change of coating nozzles 21 and the distance of the slit of coated face and coating nozzles 21 be fixed.

And then, when making the detected value equalization of each detection position (position (position)) of test section 30A, test section 30B, amount of taper can be used as the correction value to this.For the aggregate-value of obtaining the coating thickness of mean value in the described only example of 3, become (H2 _p1+ H2 _p2+ H2 _p3)-(H1 _p1+ H1 _p2+ H1 _p3).In fact become the aggregate-value of continuous print position, therefore can show as the difference (∑ H2-∑ H1) of the integrated value of H2, H1.But, in this case, be by the value integration of the error comprised caused by the gradient of each position.Therefore, when there is overall gradient, must utilize this gradient amount (Δ) value to each position revise after carry out integration, therefore become (∑ (H2-Δ Pn)-∑ (H1-Δ Pn)).

In addition, if be only the mensuration of coating thickness, then also can use the detected value of each sensor in each position, coated on one side one side calculates, also can after coating terminate, even if or the detected value of each sensor in each position that temporarily stores also can be used in coating to calculate coating thickness.In this case, as described for the coating to next workpiece S, also can feed back the adjustment of coating thickness.

[effect]

(1) present embodiment comprises: coating nozzles 21, to workpiece S coating adhesive R; Microscope carrier 11, one side supports the workpiece S as the coating object of coating nozzles 21, and one side is relative to coating nozzles 21 relative movement; And test section 30A, test section 30B, with the coating adhesive R of the workpiece S be supported on microscope carrier 11 in the face of to setting, and there is the sensor of detecting distance.The sensor of test section 30A is the 1st sensor, it is configured in the downstream of coating nozzles 21 on the coating direction of microscope carrier 11 relative to the adhesive R of coating nozzles 21 relative movement, detects from sensor to the distance of the correction unit 11a be arranged on microscope carrier 11 or correction unit 11b and the distance to workpiece S surface.The sensor of test section 30B is the 2nd sensor, it is configured in the upstream side of coating nozzles 21 on the coating direction of microscope carrier 11 relative to the adhesive R of coating nozzles 21 relative movement, detects from sensor to the distance of the correction unit 11a be arranged on microscope carrier 11 or correction unit 11b and the distance to the adhesive R surface be coated on workpiece S.And then, present embodiment comprises control device P, described control device P comprises coating thickness test section, described coating thickness test section based on the distance to correction unit 11a or correction unit 11b detected by the 1st sensor and to workpiece S surface distance, with the distance to correction unit 11a or correction unit 11b detected by the 2nd sensor and the distance to adhesive R surface, and detect the coating thickness of adhesive R.

According to above present embodiment, if make microscope carrier 11 move to a direction relative to test section 30A, test section 30B, then can detect coating thickness while coating adhesive R, therefore can shorten detection time compared with the situation of repeatedly movement.Therefore, can carry out the good coating operations of efficiency and detect operation, productivity improves.

When merely using multiple test section 30A, test section 30B, both detected values can produce deviation, but in present embodiment, correct by using correction unit 11a, the correction unit 11b deviation to the detected value of test section 30A, test section 30B.Therefore, coating thickness accurately can be obtained.

(2) correction unit 11a, correction unit 11b are a part for microscope carrier 11, therefore need not add special parts.

(3) sensor of test section 30A, test section 30B shares the correction unit 11a as detected object, and this correction unit 11a is used for correcting, and therefore both detected values reflect mutual deviation exactly.

(4) the detection position of the sensor of the correspondence of test section 30A, test section 30B, along with coating nozzles 21 moves on the track shared relative to the relative movement of microscope carrier 11, therefore can detect mutual deviation more accurately, the difference of both detected values also reflects the coating thickness of the adhesive R on workpiece S exactly.Therefore, coating thickness can be detected accurately.

(5) test section 30A, test section 30B comprise multiple sensor, therefore detect position throughout on a large scale, detect the thickness of adhesive R with can utilizing the relative movement in a direction and wide scope.Therefore, the coating thickness distribution of the adhesive R entirety of the coating in planar can be obtained at a high speed.

(6) coating nozzles 21 is gap nozzle, and it has the slit sprayed from the ejiction opening of continuous print linearity by adhesive R, therefore can utilize the whole surface from coating starting end to the relative movement terminating to hold, adhesive R being coated on workpiece S.Therefore, coating and the Thickness sensitivity of adhesive R can be carried out very at high speed.

(7) by the coating starting end upstream side than workpiece S correction unit 11a and terminate to hold the correction unit 11b of side farther downstream than the coating of workpiece S and detect the gradient of microscope carrier 11.

(8) position relationship of the installation site of the installation site of the sensor of test section 30A and the sensor of test section 30B is fixing, even if therefore the installation site (highly) of two sensors exists different, this difference is also fixing, and the error based on the detected value of this difference can be eliminated by correcting as described.

(9) coating thickness test section based on the distance to correction unit 11a or correction unit 11b detected by the 1st sensor and to workpiece S surface distance and only calculate the thickness of workpiece S, and based on the distance to correction unit 11a or correction unit 11b detected by the 2nd sensor and to adhesive R surface distance and calculate the aggregate thickness of workpiece S and adhesive R, and based on workpiece S and adhesive R aggregate thickness and only workpiece S thickness and calculate the coating thickness of adhesive R.

This corresponds to described formula, namely

Coating thickness α=(substrate thickness+coating thickness)-(substrate thickness)=(A2-H2)-(A1-H1).

That is, utilize the detected value of same rectifying plane height to same sensor to correct, obtain different sensors corrected value separately difference each other.Thus, the alignment error of the relativity of test section 30A and test section 30B and Z become that it doesn't matter.Therefore, the deviation of the detected value of recoverable the 1st sensor and the 2nd sensor, thus coating thickness accurately can be obtained.

(10) coating thickness test section utilizes the difference of the distance to correction unit 11a or correction unit 11b and the distance to correction unit 11a or correction unit 11b detected by the 2nd sensor detected by the 1st sensor, and at least one of the distance to workpiece S surface detected by the 1st sensor and the distance to adhesive R surface that detected by the 2nd sensor is corrected, and based on the distance to workpiece S surface detected by the 1st sensor, and the distance to adhesive R surface to be detected by the 2nd sensor and calculate the coating thickness of adhesive R.

This corresponds to described formula, namely

α={ H2+ (A1-A2) }-H1 formula (1)

α=H2-{H1-(A1-A2) } formula (2).

That is, use each sensor to detect identical correction unit 11a or correction unit 11b and the difference value of a reference value A1 obtained and a reference value A2 and the detected value H1 of test section 30A or test section 30B or detected value H2 is offset, also can correct deviation thus.Therefore, coating thickness accurately can be obtained.

(11) coating thickness test section calculates the coating thickness of adhesive R based on the distance to workpiece S surface detected by the 1st sensor and the distance to adhesive R surface that detected by the 2nd sensor, and utilizes the distance to correction unit 11a or correction unit 11b that detected by the 1st sensor and the difference of the distance to correction unit 11a or correction unit 11b detected by the 2nd sensor and correct the value that calculates of coating thickness.

This corresponds to described formula, namely

α=(H1-H2)-(A1-A2) formula (3).

That is, also can use the difference of a reference value A1 and a reference value A2, revise (skew) to correct by difference (coating thickness before the namely revising) result to detected value H1 and detected value H2.Therefore, coating thickness accurately can be obtained.

(12) apparatus for coating of present embodiment comprises driving mechanism, this driving mechanism according to the change of the distance to correction unit 11a or correction unit 11b detected by the 1st sensor or the distance to workpiece S surface, and makes the distance on coating nozzles 21 to workpiece S surface change.

Therefore, by the strain of the gradient according to microscope carrier 11, workpiece S, the distance on coating nozzles 21 to workpiece S surface is changed to become fixing mode, coating thickness homogenising can be made.

[the 2nd embodiment]

Except with reference to except described Fig. 1 ~ Fig. 5, also with reference to Fig. 6 ~ Figure 10, present embodiment is described.

[workpiece]

Present embodiment is the manufacturing installation of the display unit parts of the duplexer manufacturing display unit parts.Display unit parts also comprise the parts that possess Presentation Function the parts as stacked display floater and skin plate and as the parts of stacked skin plate and touch-screen, are only these parts and do not possess the parts of Presentation Function.Namely, workpiece as stacking objects has the various workpiece such as display floater, touch-screen, skin plate, backlight or its light guide plate, in present embodiment, the example forming display unit parts by display floater and skin plate being fitted via adhesive is described.This example comprises only in the situation of display floater laminating skin plate, also comprises the situation to the display module of at least 1 that is provided with on a display panel in drive circuit, driving printed base plate, backlight laminating skin plate.

Display floater has the various kind such as liquid crystal panel or organic EL panel, and its shape is also various, is described the example of the rectangular-shaped liquid crystal panel S1 of the use shown in the Figure 10 (A) as an example herein.Adhesive also can be coated on any one in liquid crystal panel S1 and skin plate S2, also can be coated on two.In present embodiment, the example forming adhesive layer R1 as shown in Figure 10 (B) on liquid crystal panel S1 surface with specific thickness coating adhesive is described.Adhesive is coated with in the mode on the whole surface spreading all over liquid crystal panel S1, but for preventing the adhesive when fitting from spilling between two panels, and be coated with in the mode of the outer rim reserving liquid crystal panel S1 a little.That is, adhesive layer R1 is identical with liquid crystal panel S1 rectangular-shaped, and is the size slightly less than liquid crystal panel S1.

Skin plate also has various kind or shape, in present embodiment, to use as shown in Figure 10 (C) and Figure 10 (D) than liquid crystal panel S1 greatly and be rectangular-shaped skin plate S2.At the bottom surface side of this skin plate S2, as by outer rim bound edge, be formed with the printing frame O of Rack.That is, the inside casing N being formed with printed frame O encirclement at skin plate S2 is observed from lower surface.In the example of Figure 10, inside casing N is rectangular-shaped and in corner with radian, but is not limited to illustrated example, and other are polygon-shaped also to can be pentagon or hexagon etc., and also can be corner overlooking lower is right angle.In addition, as shown in Figure 10 (D), the corner of inside casing N becomes approximate right angle under analysing and observe.The size of inside casing N is slightly smaller than liquid crystal panel S1.Described adhesive layer R1 is coated with in the mode becoming the shape identical with this inside casing N and size.

By being fitted and forms display unit parts in the face of printing frame O that is formed of the face being coated with adhesive of liquid crystal panel S1 and skin plate S2.When fitting, the mode being overlapped in the line of the inside casing N of skin plate S2 with the outer rim being coated on the adhesive on liquid crystal panel S1 is stacked.Liquid crystal panel S1 is a bit larger tham the inside casing N of skin plate S2, and therefore the outer rim of liquid crystal panel S1 is layered on printing frame O.Thus, when the duplexer completed from top view, the outer rim of liquid crystal panel S1 is printed frame O and covers and cannot be in sight, thus can obtain good outward appearance.

[manufacturing installations of display unit parts]

The manufacturing installation of the display unit parts of present embodiment, by described liquid crystal panel S1 coating adhesive and carry out the laminating of liquid crystal panel S1 and skin plate S2 and manufacture display unit parts.As shown in Figure 6, the manufacturing installation 100 of display unit parts comprises apparatus for coating 1, laminating apparatus 5, curing system 6, carrying device 7 and control device 9.

Liquid crystal panel S1, skin plate S2 move into the manufacturing installation 100 to display unit parts by loader (loader) 200, and utilize carrying device 7 to transport.Apparatus for coating 1, laminating apparatus 5 and curing system 6 is configured with along carrying device 7.Liquid crystal panel S1, skin plate S2 are picked up from carrying device 7 by not shown pickup (pickup) element, and carry out moving into and taking out of to each device via not shown mouth of moving into.Through each device step and produce display unit parts L, and to be taken out of from the manufacturing installation 100 of display unit parts by emptier (unloader) 300.Below, the formation of each device and effect are described in detail.

[apparatus for coating]

Apparatus for coating 1 is the device identical with described 1st embodiment.In present embodiment, to being described in the example of the surperficial coating adhesive R of liquid crystal panel S1 as described, but also can be coated with skin plate S2, or also can be coated with two panels.

[laminating apparatus]

Laminating apparatus 5 as the sticking part of the manufacturing installation 100 of display unit parts, by liquid crystal panel S1 and the stacked laminating of skin plate S2.

As shown in Fig. 7 (A), laminating apparatus 5 is the formation that subtend is configured with lower side panel 52 and epipleural 53 in chamber (chamber) 51.Chamber 51 can move up and down, and when being moved upward, lower side panel 52 opens outside with epipleural 53 and can move into liquid crystal panel S1 and skin plate S2.When chamber 51 moves downwards, lower side panel 52 and epipleural 53 are accommodated in chamber 51, form confined space in chamber 51 inside.Chamber 51 adjusts internal pressure by not shown expulsion element.That is, when moving into liquid crystal panel S1 and skin plate S2, chamber 51 declines and inside is airtight and reduce pressure, and fits under reduced pressure atmosphere.

In present embodiment, be coated with the liquid crystal panel S1 of adhesive R as an example to by lower side panel 52 support and keep the situation of skin plate S2 to be described by epipleural 53.

As the maintaining body of epipleural 53, can application examples all maintaining bodies that are as current in electrostatic chuck, mechanical chuck (mechanical chuck), vacuum cup, bonding sucker etc. or that may utilize in the future.Also can and use multiple sucker.Epipleural 53 possesses driving mechanism 55.Epipleural 53 by this driving mechanism 55 in the horizontal direction and above-below direction move.

Moved in the horizontal direction by epipleural 53, and carry out the position alignment of liquid crystal panel S1 and skin plate S2.And then as shown in Fig. 7 (B), epipleural 53 in downward direction moves, kept skin plate S2 is pressed on the liquid crystal panel S1 supported by lower side panel 52 and carries out stacked.Liquid crystal panel S1 and skin plate S2 carries out fitting via the adhesive R be coated on liquid crystal panel S1 surface and forms duplexer S10.

In addition, lower side panel 52 also can possess the maintaining body identical with epipleural 53 and have deviation not make the position of supported liquid crystal panel S1.

[curing system]

Curing system 6 as the manufacturing installation 100 of display device component sclerosis portion and the adhesive layer R1 of slurry crystal panel S1 and skin plate S2 is hardened.As shown in Fig. 8 (A), Fig. 8 (B), curing system 6 possesses: mounting table 61, mounting duplexer S10; And illumination unit 63, be configured in mounting table 61.

Illumination unit 63 comprises one or more lamps that can send sclerosis energy such as UV light or light emitting diode (light-emitting diode, LED) etc.The irradiation of illumination unit 63 regulates in the mode can irradiating the energy making the amount needed for adhesive layer R1 sclerosis.The amount of this energy was adjusted by the intensity of irradiating and time.Such as, intensity and the time of irradiation can be adjusted in the mode can irradiating the UV light making the adhesive layer R1 of interim sclerosis in apparatus for coating 1 harden required completely.Certainly, the situation making the adhesive layer R1 of not adjoint interim sclerosis harden completely is also identical.

[carrying device]

Carrying device 7 forms the conveying unit of the manufacturing installation 100 of display device component.Carrying device 7 comprises the driving mechanism of conveying unit and this conveying unit transported to each portion of above-mentioned apparatus for coating 1, laminating apparatus 5 and curing system 6 by liquid crystal panel S1 and skin plate S2.As conveying unit, the pickup device etc. that consider such as rotating disk (turntable), conveyer (conveyor), can arrange with dividing a word with a hyphen at the end of a line in orbit, as long as be the device that can transport liquid crystal panel S1 and skin plate S2 between described each device, then also can be any device.

In present embodiment, as shown in Figure 9, the example using conveyer 70 as conveying unit is described.The surface that liquid crystal panel S1 and skin plate S2 is positioned in this conveyer 70 transports.Apparatus for coating 1, laminating apparatus 5 and curing system 6 configure along this conveyer 70, move into panel and take out of panel from each device by not shown pickup device from conveyer 70 to each device.

Herein, for convenience of description, the direction being transported two panels by conveyer 70 is set to " conveyance direction ", the direction orthogonal with conveyance direction on conveyer 70 is set to " transverse direction ".Loader 200 side in the conveyance direction of conveyer 70 is set to " upstream side ", and emptier 300 side is set in " downstream ".The side of the close apparatus for coating 1 on the transverse direction of conveyer 70, laminating apparatus 5 and curing system 6 is set to " dark side ", and side far away is set to " nearby side ".

Carrying device 7 is provided with image pickup part 8 in mode adjacent on transverse direction.Image pickup part 8 is configured between apparatus for coating 1 on conveyer 70 and laminating apparatus 5.Image pickup part 8 is linked to not shown driving mechanism.Image pickup part 8 at least moves to transverse direction by this driving mechanism.

By conveyer 70 to the movement of conveyance direction and image pickup part 8 to the combination of the movement of transverse direction, the liquid crystal panel S1 of conveyance and the part desired by skin plate S2 on conveyer 70 can be taken.The concrete action of image pickup part 8 will be described in detail in effect item.

[control device]

Control device 9 is the device of the action of the manufacturing installation 100 controlling display device component.Control device 9 carries out the action control of the device forming each portion, the conveyance SECO of liquid crystal panel S1 and skin plate S2 and then carries out the check processing needed for action or computing etc. of each device.In addition, control device 9 also has the function of the control device P of described 1st embodiment.

In present embodiment, the image that control device 9 especially uses image pickup part 8 to obtain carries out position check processing.And then the positional information detected in the check processing of use location is to control the position alignment action of sticking part.Control device 9 possesses storage part in addition, stores a reference value etc. for carrying out needed for described process in storage part.The particular content of the described process of control device 9 also will be described in detail in effect item.

Control device 9 is by such as special circuit or with realizations such as the computers of established procedure running.In addition, also can on control device 9 input unit such as connecting valve, touch-screen, keyboard, mouse, and can by operator's operating control device 9.In addition, the output devices such as the display of the state confirming device or panel, lamp, instrument (meter) can also be connected.

[effect]

Be described with reference to the effect of Fig. 6 ~ Figure 10 to the present embodiment with above formation.In addition, the position and size etc. of each device or liquid crystal panel S1 and skin plate S2 be only for illustration of the performance of expedient property.

First, as shown in Figure 6, liquid crystal panel S1 and skin plate S2 moves into the manufacturing installation 100 to display device component by loader 200, and transports on the conveyer 70 of carrying device 7.The mode that each panel becomes upside with the face becoming binding face transports.That is, in present embodiment, liquid crystal panel S1 is positioned on conveyer 70 in the mode of the surface being formed with adhesive layer R1 towards upside, and skin plate S2 is positioned on conveyer 70 in the mode of the surface being formed with printing frame O towards upside.

[adhesive coating process]

The liquid crystal panel S1 of conveyance on conveyer 70 is picked by not shown pickup device, and is positioned in (with reference to Fig. 3 (1)) on the microscope carrier 11 of apparatus for coating 1.Then, carry out the coating of adhesive R identically with described 1st embodiment.Below, will to be coated on liquid crystal panel S1 and layer through the adhesive R of interim sclerosis is called adhesive layer R1.

[shooting process, position check processing]

The liquid crystal panel S1 being formed with adhesive layer R1 is taken out of from apparatus for coating 1 by not shown pickup device, and the conveyer 70 being again positioned in carrying device 7 converges with skin plate S2.As shown in Figure 9, liquid crystal panel S1 and skin plate S2 loads in adjacent on the transverse direction of the conveyer 70 and mode arranged substantially in parallel.In graphic, diagram liquid crystal panel S1 is positioned in the dark side of conveyer 70, and skin plate S2 is positioned in the example of the nearby side of conveyer 70, but mounting position is not limited thereto, also can be the nearby side that liquid crystal panel S1 is positioned in conveyer 70, and skin plate S2 is positioned in the dark side of conveyer 70.Liquid crystal panel S1 and skin plate S2 transports on conveyer 70, and till moving to the below of image pickup part 8.

Herein, the shooting process of image pickup part 8 and the position check processing of control device 9 is carried out.Shooting process and position check processing are the data that use and the process carried out in the position alignment in order to obtain two panels in laminating process described later.As mentioned above, be overlapped in the mode of the line of the inside casing N of skin plate S2 with the outer rim being formed in the adhesive layer R1 on liquid crystal panel S1 stacked for liquid crystal panel S1 and skin plate S2.That is, the mode of aiming at the corner of the inside casing N of the corner of the adhesive layer R1 that will be formed on liquid crystal panel S1 and skin plate S2 (following, to be called simply " corner of skin plate S2 ") is fitted.In the corner location of two panels situation devious, this deviation must be revised before laminating.Therefore, in shooting process, take the corner of the inside casing N of liquid crystal panel S1 and skin plate S2, and in the check processing of position, determine the coordinate of the corner of two panels.

Shooting process, position check processing also can separately carry out, but conveyer 70 capable of being combined carries out to the movement of conveyance direction and image pickup part 8 to the movement of transverse direction simultaneously, and shooting processes, position check processing.

Such as, first make the conveyer 70 being placed with liquid crystal panel S1 and skin plate S2 move to conveyance direction, and the position arrived in the end (hereinafter referred to as front end) being positioned at upstream side of panel below image pickup part 8 stop.Secondly, image pickup part 8 is nearby moved the dark side of side direction from device along transverse direction, and stop at each Angle Position and obtain the image comprising each angle.In addition, the amount of movement of conveyer 70 and image pickup part 8 and stop position can faying face board sizes etc. and determining in advance, and are stored in advance in the storage part of control device 9.

The image timed unit 9 obtaining each angle whenever image pickup part 8 carries out position check processing.Position is detected can use known method.Such as liquid crystal panel S1, analysis chart picture and detect the profile of panel, is defined as angle, and obtains its coordinate by the prescribed limit centered by the intersection point on panel both sides.For skin plate S2, analysis chart picture and detect the profile of inside casing N in the same manner, is defined as angle, and obtains its coordinate by the prescribed limit centered by the intersection point on the frame line both sides of inside casing N.

After completing described process to each angle of front, conveyer 70 is moved to conveyance direction, and the position arrived in the end (hereinafter referred to as rear end) being positioned at downstream of liquid crystal panel S1 and skin plate S2 below image pickup part 8 stop.Then, one side make image pickup part 8 along transverse direction from the dark side direction of device nearby side move one side make image pickup part 8 take each angle of rear end side.

In addition, the processing sequence at described each angle is an example, and order can suitably change.In addition, the movement of conveyer 70 or the movement of image pickup part 8 also can be relativity, such as, also can make image pickup part 8 not only move along transverse direction, and move to the opposite direction of conveyance direction or conveyance direction and process.

[laminating process]

When the quadrangular shooting of institute of liquid crystal panel S1 and skin plate S2 processes and position check processing completes, conveyer 70 transports liquid crystal panel S1 and skin plate S2, and is moved into by not shown pickup device to laminating apparatus 5.Now, move in the mode maintaining in the check processing of described position detected each angular coordinate.

As shown in Fig. 7 (A), in laminating apparatus 5, the liquid crystal panel S1 being formed with adhesive layer R1 is positioned on lower side panel 52.Now, load in the surface mode being upward formed with adhesive layer R1.Skin plate S2 overturns in binding face mode downward and is delivered to epipleural 53 and is kept by maintaining body.Two panels is paid to keep in carrying device 7 mode of detected positional information.

Now, chamber 51 is moved upward, and therefore lower side panel 52 is open with epipleural 53.When completing the conveyance of two panels, chamber 51 is driven in the mode being positioned at below, and it is inner that lower side panel 52 and epipleural 53 are accommodated in chamber 51.Be formed with confined space in chamber 51 inside, reduced pressure in confined space by not shown expulsion element.

Liquid crystal panel S1 and skin plate S2 as mentioned above with by stacked for the mode of four respective angular alignments, but also likely produces deviation due to respective corner location, therefore before laminating, carries out the position correction of liquid crystal panel S1 and skin plate S2.Position correction is each angular coordinate detected in the position check processing based on carrying device 7 and carries out.Position correction can use known method, such as, can store the position collimation at each angle in advance in the storage part of control device 9, and calculates position correction amount according to this position collimation and the difference of each angular coordinate detected.

Based on the position correction amount calculated, epipleural 53 is moved to x, y, θ direction, the position deviation of opaquing fluid crystal panel S1 and skin plate S2 thus.In addition, illustrate herein and make epipleural 53 move to carry out the example of position correction, but also can make lower side panel 52 or make both movements of epipleural 53 and lower side panel 52 carry out position correction.

After correction position deviation, as shown in Fig. 7 (B), epipleural 53 declines to lower side panel 52, the skin plate S2 kept is pressed on the liquid crystal panel S1 supported by lower side panel 52 by epipleural 53.The adhesive layer R1 be formed on liquid crystal panel S1 surface is pressed by lower side panel 52 across liquid crystal panel S1, thus two panels contiguity, make two panels fit thus.

Removing decompression state when completing the laminating of liquid crystal panel S1 and skin plate S2, chamber 51 being moved upward and open confined space.Duplexer S10 is taken out of by from laminating apparatus 5, again utilizes carrying device 7 to transport.Then, moved into curing system 6 by not shown pickup device.In addition, in the process transported from laminating apparatus 5 to curing system 6, also duplexer S10 can be placed the set time in an atmosphere.In this standing time, duplexer S10 is pressed by atmospheric pressure and stablizes.In addition, even if remain space (void) in adhesive layer R1, also space can be reduced by placing the sufficient time.

[cure process]

In curing system 6, as as shown in Fig. 8 (A), duplexer S10 is positioned in mounting table 61, being irradiated by illumination unit 63 as shown in Fig. 8 (B) makes the adhesive layer R1 of interim sclerosis harden completely the UV light of required intensity, thus completes the formal sclerosis of adhesive layer R1.

[effect]

(1) present embodiment has: the apparatus for coating 1 of described 1st embodiment; Laminating apparatus 5, fits pair of workpieces S and liquid crystal panel S1 and skin plate S2 via adhesive layer R1; And curing system 6, the adhesive between the liquid crystal panel S1 that fitted by laminating apparatus 5 and skin plate S2 is hardened completely.Thus, the uniform display device component of adhesive layer R1 can be manufactured.

(2) display device component manufacturing installation 100 so that comprise carrying device 7, this carrying device 7 transports liquid crystal panel S1 and skin plate S2 between apparatus for coating 1 and laminating apparatus 5, and image pickup part 8 is arranged on this carrying device 7.The image of the liquid crystal panel S1 that laminating apparatus 5 is taken based on image pickup part 8 and skin plate S2 and carry out the position alignment of liquid crystal panel S1 and skin plate S2.That is, the position alignment of the image applications of being taken by image pickup part 8 in time fitting, thus can fit exactly.

[other embodiments]

(1) as long as adhesive R is coated with the planar needed for laminating.Such as, also can spread all over the whole one side of workpiece S and be coated with, also can have not coated region in a part of workpiece S.In addition, adhesive R is non-essential arrives edge, face completely.Also the part that adhesive R does not arrive edge can be there is.

(2) as long as the workpiece S becoming laminating object is that then its size, shape, material etc. are unrestricted for forming the workpiece S of display unit and carrying out fitting with planar coating adhesive R on one side as skin plate and display module.As display unit, also extensively comprise liquid crystal display, organic el display etc. and there is the flat workpiece S of laminating and display unit that is current or that may utilize in the future.

(3) the workpiece S being coated with adhesive R both can be the display module of display unit, also can be skin plate, touch-screen or comprised the skin plate (composite panel) of touch-screen.But possess multiple component such as display floater, drive circuit, printed base plate (coil type combines automatically (TAB)) of comprising Polarizer etc. and to be configured to the strain of the display module of multilayer also large, and the solid difference of this strain is also large.As only skin plate, only touch-screen or composite panel, form should diminishing of simple person, be easy to coating adhesive R equably.

(4) in addition, when the light guide plate etc. of backlight is fitted in display module, also light guide plate can be interpreted as workpiece S.Adhesive R also can be coated on display module, light guide plate any one on, but in this situation, be also preferably coated on the simple light guide plate side formed.

(5) situation of both the coating adhesive R of the workpiece S to laminating can also be applied the present invention to.In this situation, adhesive R becomes thicker, and the thickness of adhesive layer R1 easily becomes uneven, and therefore the management of film thickness distribution of the present invention is even more important.

(6), when workpiece S side being moved by microscope carrier 11, because the position relationship of test section 30A, test section 30B is stablized, therefore can detect exactly.But, also by making coating part 20 and test section 30A, test section 30B side moves and carries out being coated with and detecting.In this situation, the detected value of test section 30A, test section 30B easily produces deviation, and therefore the management of coating thickness distribution of the present invention is even more important.

(7), in described embodiment, the direction orthogonal with coating direction is arranged with multiple sensor.But, be not limited to the configuration in a straight line of multiple sensor arrangement.Such as, also as shown in Figure 11 (A), one group of the test section 30A be made up of pair of sensors, test section 30B can be only set at upstream side and downstream.For expecting accuracy, the detection position of pair of sensors is also more satisfactory for move along same trajectories.But, if when the shape of microscope carrier 11 upper surface and the precision of position high or under not needing high-precision situation, also can as shown in Figure 11 (B), the position of the test section 30B movement that the test section 30A be made up of the 1st sensor is formed from by the 2nd sensor is different.

(8) in described embodiment, the interval of the 1st sensor of test section 30A and the 2nd sensor of test section 30B, is set as utilizing the 1st sensor to detect correction unit 11b and the degree (with reference to Fig. 3 (4)) utilizing the 2nd sensor to detect correction unit 11a simultaneously.But, if reduce both intervals, and comprise the height that can simultaneously utilize the 1st sensor to detect workpiece S upper surface and utilize the 2nd sensor to detect the state of the height on adhesive R surface, then can realize the process of more high speed.

(9) as long as correction unit 11a, correction unit 11b are as lower area, namely this region is detected by test section 30A, the part of test section 30B to microscope carrier 11, and is specified with being fixed property of the position relationship ground of microscope carrier 11.Therefore, also can not use special parts and use a part for microscope carrier 11 as correction unit 11a, correction unit 11b, the part that also point body component group can be entered microscope carrier 11 is used as correction unit 11a, correction unit 11b.The position relationship stationarity ground decision that pair of sensors is mutual, but also can detect the correction unit being positioned at diverse location.As long as stationarity ground determines mutual position relationship, then according to this position relationship, detected value is revised.

(10) all carry out when the detection of coating thickness is preferably coated with at every turn.But when the position relationship rheological parameters' change with time of each constituting portion is few, also can regularly to carry out etc. carrying out with low frequency.

(11) testing result of coating thickness of the present invention is made to be reflected in which way in coating as freely.In real-time feedback, consider that control device P regulates the height of coating nozzles 21 (with the gap of the coated face of workpiece) to regulate coating thickness according to the change (strain) of the distance to workpiece S surface detected by test section 30A.Such as, when the height of the coated face detecting workpiece S is high, make corresponding to this coating nozzles 21 increase, and when the height of the coated face detecting workpiece S is low, make according to this coating nozzles 21 decline.Thus, can the gap of the coated face of the ejiction opening of coating nozzles 21 and workpiece S be remained fixing, thus coating thickness can be maintained fixing.For the coating thickness of the adhesive R detected, also can make it the coating thickness be reflected in next workpiece S and regulate.The value detected can be stored in advance in storage part, and can be used for the tendency of analytical equipment and help improve device.In this situation, display unit also can be made to show curve map and visually distinguish the distribution of coating thickness.

(12) formation, the coating process of the coating part 20 of adhesive R, as long as can be coated with in the mode spreading all over the one side of workpiece S in planar.Coating part 20 also can be many wire coating adhesive R.In this situation, also multiple independently distributor (dispenser) can be linked.In addition, can apply undertaken being coated with by roller device, carry out the various devices such as the device be coated with by scraper plate (squeegee).

(13) kind of the adhesive R used is not limited to uv-hardening resin.The resin of sclerosis generally by irradiation electromagnetic wave or heat, but all adhesive R that are current or that may utilize in the future can be applied.

(14) in described embodiment, as conveyance liquid crystal panel S1 and skin plate S2 conveying unit and describe the example of the carrying device 7 comprising conveyer 70, but to be not limited thereto.Conveying unit such as also as shown in Figure 12, can be configured with holding element 71 with dividing a word with a hyphen at the end of a line on track 72, and this holding element 71 comprises two the arm 71a, the arm 71b that configure abreast up and down.

Liquid crystal panel S1 and skin plate S2 remains on two arm 71a, arm 71b respectively, and transports on track 72 with the form of subtend.Image pickup part 8 configures in the mode of two on track 72 between arm 71a and arm 71b.In this situation, image pickup part 8 such as can comprise camera in upper and lower both sides.Thus, upper and lower panel can be taken simultaneously.

(15) manufacturing installation 100 of display device component also can be included in the front and back of apparatus for coating 1, laminating apparatus 5 and curing system 6 or carry out the device of other steps between these.Such as, bale packing (taping) unit etc. to the display panels packing completed can also be comprised.In addition, when not needing cure process in the kind according to adhesive R or to utilize Split type device to carry out the situation of cure process inferior, the manufacturing installation 100 without the display device component of curing system 6 can be also formed as.

(16) in described embodiment, one example of the workpiece S making liquid crystal panel S1 and skin plate S2 as laminating object is described, as long as but adhesive R is coated on one side with planar and carries out the component of fitting for the component that becomes the duplexer forming display unit, then kind, size, shape, material etc. are unrestricted.As long as that is, for by comprising the display floater of Polarizer etc., the touch-screen, the skin plate S2 on protection surface, the light guide plate of flat backlight or backlight etc. these at least two kinds of operation fit and form display device component.As display unit, also can extensively comprise liquid crystal display, organic el display etc. have laminating flat workpiece and in display unit that is current or that may utilize in the future.

(17) pair of workpieces bonded to each other both can be 1, also can be the duplexer of multi-disc.Also can laminating display floater, drive circuit, printed base plate duplexer on so that laminating touch-screen, protection panel or composite panel etc.That is, the stacked number of stacked as display device component workpiece is not limited to certain number.

(18) in described embodiment, due to rectangular-shaped workpiece of fitting, therefore with rectangular-shaped coat binding layer R1, but also in conjunction with the shape of workpiece, adhesive layer R1 can be formed as toroidal or polygon-shaped.

(19) chamber 51 inner pressure relief of laminating apparatus 5 is fitted under vacuo, but also can fit under air.In these situations, do not arrange for hardening or form the element needed for the airtight and space of decompression temporarily, therefore can constituent apparatus more at low cost, thus display floater can be manufactured at low cost.

Claims

1. an apparatus for coating, is characterized in that comprising:

Coating nozzles, to workpiece coating adhesive;

Microscope carrier, one side supports the workpiece as the coating object of described coating nozzles, and one side is relative to described coating nozzles relative movement; And

Sensor, with the coating adhesive of the workpiece be supported on described microscope carrier in the face of to setting, and detecting distance; And

The described sensor of detecting distance comprises:

1st sensor, on the coating direction of described microscope carrier relative to described coating nozzles relative movement adhesive, be configured in the downstream of described coating nozzles, detect from sensor to the distance of the correction unit be arranged on described microscope carrier and the distance to described surface of the work; And

2nd sensor, on the coating direction of described microscope carrier relative to the adhesive of described coating nozzles relative movement, be configured in the upstream side of described coating nozzles, detect from sensor to the distance of the correction unit be arranged on described microscope carrier and the distance to the adhesive surface be coated on workpiece; And

Described apparatus for coating comprises coating thickness test section, based on the distance to correction unit detected by described 1st sensor and the distance to surface of the work, with the distance to correction unit detected by described 2nd sensor and the distance to adhesive surface, and detect the coating thickness of adhesive.

2. apparatus for coating according to claim 1, is characterized in that:

Described correction unit is a part for microscope carrier.

3. apparatus for coating according to claim 1, is characterized in that:

Described 1st sensor and described 2nd sensor share the correction unit as detected object.

4. apparatus for coating according to claim 1, is characterized in that:

The detection position of described 1st sensor and described 2nd sensor, moves along the track shared along with the relative movement of described coating nozzles.

5. apparatus for coating according to claim 1, is characterized in that:

Sensor and described 2nd sensor of described 1st test section are respectively multiple.

6. apparatus for coating according to claim 1, is characterized in that:

Described coating nozzles is gap nozzle, and it has the slit sprayed from the ejiction opening of continuous print linearity by adhesive.

7. apparatus for coating according to claim 1, is characterized in that:

Described correction unit is than the coating starting end upstream side of workpiece and terminate to hold than the coating of workpiece and arrange to side farther downstream.

8. apparatus for coating according to claim 1, is characterized in that:

The position relationship of the installation site of described 1st sensor and the installation site of described 2nd sensor is fixing.

9. apparatus for coating according to claim 1, is characterized in that, described coating thickness test section:

The thickness of workpiece is only calculated based on the distance to correction unit detected by described 1st sensor and the distance to surface of the work, and

The aggregate thickness of workpiece and adhesive is calculated based on the distance to correction unit detected by described 2nd sensor and the distance to adhesive surface,

Based on workpiece and adhesive aggregate thickness and only workpiece thickness and calculate the coating thickness of adhesive.

10. apparatus for coating according to claim 1, is characterized in that, described coating thickness test section:

Utilize the difference of the distance to correction unit and the distance to correction unit detected by described 2nd sensor detected by described 1st sensor, and correct to the distance to surface of the work detected by described 1st sensor and by least one of distance to described adhesive surface that described 2nd sensor detects, and

The coating thickness of described adhesive is calculated based on the distance to surface of the work detected by described 1st sensor and the distance to described adhesive surface that detected by described 2nd sensor.

11. apparatus for coating according to claim 1, is characterized in that, described coating thickness test section:

The coating thickness of described adhesive is calculated based on the distance to surface of the work detected by described 1st sensor and the distance to described adhesive surface that detected by described 2nd sensor, and

The difference of the distance to correction unit utilizing the distance to correction unit that detected by described 1st sensor and detected by described 2nd sensor, and the value that calculates of described coating thickness is corrected.

12. apparatus for coating according to claim 1, is characterized in that:

Described apparatus for coating comprises driving mechanism, according to the change of the distance to correction unit detected by described 1st sensor or the distance to surface of the work, and coating nozzles is changed to the distance of surface of the work.

13. 1 kinds of coating processes, is characterized in that:

1st sensor is configured in one side relative to described microscope carrier relative movement one in the face of being supported on the downstream of the coating nozzles of the workpiece coating adhesive on microscope carrier, detect from described 1st sensor to the distance of a part of correction unit of described microscope carrier and the distance to surface of the work

2nd sensor is configured in one side relative to described microscope carrier relative movement one in the face of being supported on the upstream side of the coating nozzles of the workpiece coating adhesive on microscope carrier, detect from described 2nd sensor to the distance of a part of correction unit of described microscope carrier and the distance to the adhesive surface be coated on workpiece, and

Based on the distance to correction unit detected by described 1st sensor and the distance to surface of the work, with the distance to correction unit detected by described 2nd sensor and the distance to adhesive surface, and detect the coating thickness of adhesive.

14. coating processes according to claim 13, is characterized in that:

The detection of described 1st sensor and the detection of described 2nd sensor at least carry out the workpiece of coating adhesive, and comprise the state of coated on one side adhesive one side detection.

15. coating processes according to claim 13, is characterized in that:

The detection of described 1st sensor and the detection of described 2nd sensor comprise the state of simultaneously carrying out described detection.

The manufacturing installation of 16. 1 kinds of display unit parts, is characterized in that comprising:

Apparatus for coating according to any one of claim 1 to 12, to the adhesive that at least one coating of the pair of workpieces forming display unit is hardened by irradiation energy;

Sticking part, fits described pair of workpieces via described adhesive; And

Sclerosis portion, makes the adhesive between the described pair of workpieces of being fitted by described sticking part harden completely.

The manufacture method of 17. 1 kinds of display unit parts, is characterized in that:

By according to claim 13 to the coating process according to any one of 15, to the adhesive that at least one coating of the pair of workpieces forming display unit is hardened by irradiation energy,

Described pair of workpieces is fitted via described adhesive by sticking part, and

Sclerosis portion is by making adhesive harden completely to the adhesive irradiation energy between the described pair of workpieces utilizing described sticking part to fit.