TW201643839A - Photo-curing system - Google Patents

Abstract

A work having a light shielding area coated with a photo-curing material is photo-cured with poor curing being restrained while the work is conveyed. In a photo-curing system 1 that irradiates a touch panel display 2 having a frame area 18 that shields light from a front surface and having a bonding surface 9 coated with a photo-curing resin 39, with light of an irradiation device 24 from a side of a front surface to cure the photo-curing resin 39, a conveyance device 4 that conveys the touch panel display 2 through a location directly underneath the irradiation device 24, and a first reflector 26 fixedly disposed in a directly underneath position Xa of the irradiation device 24 are provided, the irradiation device 24 irradiates the first reflector 26 with light of a linear light source 28 extending in a direction crossing a conveying direction A, the first reflector 26 has an oblique incidence reflection surface 40 extending to be longer than the touch panel display 2, parallel with the linear light source 28, and the oblique incidence reflection surface 40 irradiates the touch panel display 2 with reflection light D1 with a predetermined incident angle [theta] or more with respect to a straight down direction Z.

Description

Light hardening system

The present invention relates to a photohardening system for hardening a photocurable material.

A flat panel display such as a liquid crystal display or an organic light-emitting display (OLED) is widely known as a display device. In such a display device, a touch panel display in which a touch panel is attached to a display panel of a flat panel display is known. Here, in the field of manufacturing technology of flat panel displays, there is known a technique in which two light-transmitting substrates constituting a display panel are bonded and sealed with a photocurable resin. Further, there has been proposed a technique in which a flat panel display has a black matrix and the black matrix covers the photocurable resin to form a light shielding portion for shielding light, and the light can reach the photocurable resin. The light is incident on the portion below the light shielding portion obliquely and irradiated (for example, refer to Patent Document 1).

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2005-43700

In other words, the touch panel has an active area equipped with a sensor for detecting a touch operation, and an edge area formed around the active area. Designed in the edge area The electrical wiring is provided, and the edge region is made opaque in order to hide the edge of the electrical wiring and the display panel or for the decoration of the product. In the manufacturing step of the touch panel display, the material of the touch panel and the display panel is bonded, and a photocurable resin is used in the same manner as the flat panel display. The photocurable resin is applied over the entire circumference of the touch panel and the display panel, and the entire periphery of the edge region, and is cured by applying light to the photocurable resin. The edge region functions as a light-shielding region. When viewed from the upper surface of the touch panel (the surface subjected to the touch operation), a portion of the photocurable resin is hidden by the light-shielding region, so that it is difficult to make general illumination. It hardens. Therefore, similarly to the technique of Patent Document 1, by irradiating light obliquely from the upper surface of the touch panel, the photocurable resin which is covered by the light-shielding region and which is hidden can be cured.

However, Patent Document 1 has a configuration in which a workpiece is fixedly disposed under the irradiation device and is irradiated. Therefore, there is a problem in that it is impossible to irradiate light by a plurality of workpieces while transporting a plurality of workpieces. Seeking an increase in production. Further, in the configuration in which the workpiece to be conveyed is irradiated with light, it is difficult to cure the photocurable resin applied to the portion shielded by the edge region over the entire circumference.

The present invention has been made in view of the above circumstances, and an object of the invention is to provide a photocuring system capable of light-curing a workpiece coated with a photocurable material in a light-shielding region while suppressing light in the light-shielding region. Poor hardening of the hardenable material.

In order to achieve the above object, the photohardening system of the present invention is a workpiece having a light-shielding region that shields light irradiated from the surface and coated with a photocurable material on the bonding surface, and the light of the irradiation device is applied from the surface of the workpiece. The side is irradiated to make the above The photocurable material is cured by a transfer device that transports the workpiece directly under the irradiation device, and a first reflector that is fixedly disposed directly under the irradiation device The irradiation device includes a linear light source extending in a direction crossing the transport direction of the transport device, and the light of the linear light source is applied to the first reflector, and the first reflector has a parallel light source And the first reflecting surface extending longer than the workpiece, and the first reflecting surface is irradiated with the reflected light having a predetermined incident angle or more with respect to the direction directly under the irradiation device to the workpiece conveyed by the conveying device.

Further, the optical curing system according to the present invention is characterized in that the second reflector includes a second reflector that reflects the reflected light incident from the first reflecting surface obliquely with respect to a direction directly under the irradiation device, and is irradiated The workpiece conveyed by the conveying device.

Further, in the above-described photo-curing system, the second reflection system includes a second reflection surface that is disposed opposite to the first reflection surface of the first reflector on the transport path of the transport device. The second reflecting surface reflects light from the first reflecting surface toward the far side of the conveying direction of the conveying device on the first reflecting surface side.

Further, according to the present invention, in the photocuring system, the second reflecting surface reflects light on a conveying surface of the conveying device below the first reflecting body.

Further, in the above-described optical curing system, the second reflecting body is provided with a third reflecting surface disposed on both sides of the conveying surface of the conveying device, and the third reflecting surface is made from the first The light whose reflecting surface faces the side of the conveying surface is reflected toward the inside of the conveying surface.

Further, according to the present invention, in the photocuring system, the second reflecting body includes a fourth reflecting surface that covers the conveying surface of the conveying device, and the fourth reflecting surface is oriented from the first reflecting surface. The light above the transfer surface is reflected toward the side of the transfer surface.

Further, in the above-described photohardening system according to the invention, the light-shielding region is formed in a ring shape, and the inner side of the light-shielding region is transparent to light.

According to the invention, the light of the irradiation device is reflected by the first reflecting surface of the first reflector, and the reflected light formed by the reflection is irradiated at a predetermined incident angle or more with respect to the direction directly under the irradiation device. Since the light is obliquely irradiated to the light-shielding region, the photocurable material of the bonding surface can be photohardened. Further, according to the present invention, since the reflected light of the first reflecting surface includes a light component that faces the outer side of the conveying surface of the conveying device, even if the light shielding region extends in the conveying direction, the light can be obliquely incident throughout the entire length of the light shielding region. . Thereby, even when the light-shielding region is annular, it is possible to illuminate the light over the entire circumference to harden the light.

1‧‧‧Light hardening system

2‧‧‧Touch panel display (workpiece)

3‧‧‧Transfer path

3A‧‧‧Transfer surface

3A1‧‧‧ side

4‧‧‧Transporting device

6‧‧‧ illumination system

8‧‧‧ display panel

8A‧‧‧ display surface

8B‧‧‧Edge

9‧‧‧Fitting surface

10‧‧‧Touch panel

12‧‧‧ Panel Department

14‧‧‧Flexible substrate

15‧‧‧ side

16‧‧‧Active area (penetration)

18‧‧‧Edge area (shading area)

18A, 18B‧‧‧ edge of the marginal zone

18T‧‧‧Outside of the marginal zone

The inner edge of the 18V‧‧‧ edge area

21‧‧‧ conveyor belt

22‧‧‧With drive

24‧‧‧Irrigation device

26, 126, 226, 326, 426‧‧‧1st reflector

27‧‧‧2nd reflector

28‧‧‧Linear light source

29‧‧‧Mirror

31‧‧‧Shell

31A‧‧‧ illuminated opening

33‧‧‧wavelength limiting filter

39‧‧‧Photocurable resin (photocurable material)

40, 140, 240, 340, 440 ‧ ‧ oblique incident reflecting surface (first reflecting surface)

40A‧‧‧Upper

40B‧‧‧Bottom

42‧‧‧ Keep the pedestal

45‧‧‧Top reflecting surface (4th reflecting surface)

46‧‧‧Side reflecting surface (3rd reflecting surface)

47‧‧‧ opposite reflecting surface (second reflecting surface)

70‧‧‧ illuminance meter

71‧‧‧ illuminance meter body

72‧‧‧Injection angle limit mounting accessories

73‧‧‧Base body

74‧‧‧Detection surface

75‧‧‧Light Access Department

77‧‧‧Installation parts

77A‧‧‧ surface

78‧‧‧Light limiting parts

79‧‧‧Injection angle limiting plate (restricting member)

79A‧‧‧Back

80‧‧‧Light guide

80A‧‧‧ front end

80B‧‧‧ outer perimeter

81‧‧‧ light entrance

85‧‧‧ shading members

90‧‧‧reflector unit

91‧‧‧ rod frame

92‧‧‧Support frame

93‧‧‧2nd reflector support frame

93A‧‧‧End

94‧‧‧Support

94A‧‧‧Fixed Department

95‧‧‧Axis

96‧‧‧ vent

140A, 140B, 140C‧‧‧ reflecting surface

A‧‧‧Transfer direction

B‧‧‧Width direction

B‧‧‧hardened material thickness

C‧‧‧ optical axis

D1‧‧‧ reflected light

D1a, D1b‧‧‧ light components

D1m‧‧‧Light component

D1n‧‧‧Light component

D2m‧‧‧ reflected light

D2n‧‧‧ reflected light

F‧‧‧ focus

H1‧‧‧ Illumination

H1a, H1b‧‧‧ illumination

Ha, Hb‧‧‧ distance

Hc‧‧‧ length

La‧‧‧Transport path length

Lb‧‧‧ luminous length

Lc‧‧‧ distance

Ld‧‧‧ length

Le‧‧‧ half value

M‧‧‧ length

O‧‧ Center

P‧‧‧ gap

Q‧‧‧Light

Wa‧‧‧Width

Wb‧‧‧ Coating location

Wc‧‧‧Width

Below Xa‧‧‧

The direction of Z‧‧‧

‧‧‧‧ angle

‧‧‧‧ tilt angle

Γ‧‧‧ angle

Θ‧‧‧incidence angle

Θ1‧‧‧ angle

Δ‧‧‧ gap

Δa‧‧‧ overlap

Fig. 1 is an explanatory view of a photo-curing system according to an embodiment of the present invention.

Figure 2 is a side view of a photohardening system.

3 is an explanatory view of a touch panel display as an example of a workpiece, FIG. 3(A) is an exploded perspective view, and FIG. 3(B) is a perspective view.

Fig. 4 is a view showing the configuration of the irradiation device and the structure directly under the irradiation device.

FIG. 5 is a view showing the illumination of the touch panel display during the conveyance time. The graph shown in the section.

Fig. 6 is a perspective view showing an irradiation state of light when the touch panel display is transported.

Figure 7 is a ray diagram of a photohardening system.

Fig. 8 is a perspective view showing the configuration of a reflector unit.

Fig. 9 is a perspective view showing the constitution of an illuminometer.

Figure 10 is a perspective view showing a section of the illuminometer.

Figure 11 is an explanatory diagram of the light limitation of the illuminometer.

Fig. 12 is a view showing the detection sensitivity characteristics of the illuminometer.

Fig. 13 is a view showing the configuration of an illuminometer. Fig. 13(A) shows a state in which a light shielding member is attached, and Fig. 13(B) shows a state in which the light shielding member is removed.

Fig. 14 (A) to (C) are views showing a modification of the oblique incident reflection surface of the embodiment.

Fig. 15 (A) and (B) are views showing a modification of the oblique incident reflection surface of the embodiment.

Fig. 16 is a view showing a modification of the photo-curing system of the embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is an explanatory view of a photo-curing system 1 of the present embodiment, and FIG. 2 is a side view of the photo-curing system 1. The photo-curing system 1 is a system that performs photohardening treatment by curing light-curable resin by irradiating light onto a workpiece coated with a photocurable resin. As shown in FIGS. 1 and 2, the photo-curing system 1 includes a transport device 4 that transports the touch panel display 2 as an example of a workpiece in one direction along the transport path 3, and an illumination system 6 that is disposed in the illumination system 6. On the transport path 3 of the transport device 4, light is radiated from the upper side of the transport path 3.

3 is an explanatory view of the touch panel display 2, FIG. 3(A) is an exploded perspective view, and FIG. 3(B) is a perspective view. As shown in FIG. 3(A), the touch panel display 2 includes a display panel 8 having a liquid crystal display and a touch panel 10, and as shown in FIG. 3(B), the touch panel display 2 is formed by overlapping the upper and lower directions. . Further, in the description of the present embodiment, in the touch panel display 2, the side of the touch panel 10 is defined as the front side, and the side of the display panel 8 of the liquid crystal display is defined as the back side.

The display panel 8 is a thin plate-shaped module including a rectangular panel portion 12 constituting the display surface 8A and a flexible substrate 14 connected to the panel portion 12. Although not shown in the drawings, the panel portion 12 has a rectangular transparent electrode substrate having two front and back surfaces and a liquid crystal material sealed therebetween. When the manufacturing steps of the panel unit 12 are simply described, the two transparent electrode substrates are coated with a photocurable resin over the entire circumference of the edge portion, and are superposed as a sealant, and are irradiated from one of the front surface and the back surface. Light, the photocurable resin is cured and sealed, and then a liquid crystal material is injected between the two transparent electrode substrates. The photocurable resin used for sealing the panel portion 12 is generally an ultraviolet curable sealant, and the irradiated light is ultraviolet light. Further, the material of the transparent electrode substrate is a material which can be penetrated by ultraviolet rays, for example, a glass substrate is used.

The flexible substrate 14 is a flexible printed substrate and is also a member also referred to as a flexible printed substrate. The flexible substrate 14 is provided with a plurality of signal lines for transmitting various signals such as a drive signal of the drive panel unit 12. The flexible substrate 14 is attached to one side 15 (short side in the illustrated example) of the rectangular panel portion 12, and is provided over the entire length of the side 15. Further, any wiring board or cable may be used instead of the flexible board 14.

The touch panel 10 is a device for detecting a touch operation of a panel surface. As shown in FIG. 3(A), the touch panel 10 has an active area 16 formed to be covered. The rectangular shape of the size of the cover panel 8 is hidden by the operator, and can be visually recognized by the operator and can be touched by a finger or a stylus; and the edge region 18 is formed in a ring shape so as to surround the active region 16. In the active area 16, a sensor (not shown) for detecting a touch operation is arranged in a matrix, and a take-out wiring electrically connected to the sensor is provided around the active area 16. Further, the edge region 18 covers and hides the region where the take-out wiring and the edge portion 8B of the display panel 8 and the like surround the active region 16 over the entire circumference of the touch panel 10.

The touch panel 10 is further provided with a transparent substrate module having the active region 16 and the extraction wiring, and a cover glass covering the transparent substrate module. A transparent glass material is formed; and the edge region 18 is provided in the cover glass. The substrate of the transparent substrate module and the material for covering the glass are made of a glass material that can be penetrated by ultraviolet rays, and at least the active region 16 is a penetration portion through which ultraviolet rays can pass. On the other hand, the edge region 18 is formed to be opaque in order to reduce the visibility of the electrical wiring on the back side and to be seen by the operator. The opaque state depends on the visual identification and design of the electrical wiring and internal mechanisms, and the means of opacity uses any means known per se. Further, the edge region 18 is a non-penetrating portion that blocks ultraviolet rays by the means of opacity.

The touch panel display 2 is manufactured by laminating the touch panel 10 in a state of being superposed on the display panel 8. As shown in FIG. 3(A), the display panel 8 is coated with a photocurable resin 39 over the entire surface of the bonding surface 9 to be bonded to the touch panel 10, as shown in FIG. 3(B). The control panel 10 is superposed on the display panel 8, and is irradiated with light from the front side thereof to cure the photocurable resin 39. At this time, the conventional light hardening system is applied throughout the entire back side of the edge region 18 of the touch panel 10. On the edge portion 8B of the shielded display panel, a hardened defective portion in which the photocurable resin 39 is hardened is formed. It is included in the light-hardening system of the conventional light-hardening system, and is integrated in the light-hardening system 1 throughout the bonding surface 9, and does not cause hardening failure, and can be used for the touch panel 10 and the display panel. 8 fit.

Next, each part of the photo-curing system 1 will be described in detail with reference to FIGS. 1 and 2 described above. The conveying device 4 is a so-called belt conveyor including a conveyor belt 21 that forms the conveying path 3 and a belt driver 22 that drives the conveyor belt 21. The transport path 3 composed of the conveyor belt 21 is linearly disposed at least in a direction orthogonal to the direct direction Z (hereinafter referred to as a "transport direction" and a symbol A) directly under the irradiation device 24. The path of extension. In the transport path 3, the touch panel display 2 is formed so as not to protrude from the width Wa of the direction in which the transport path 3 is orthogonal to the transport direction A (hereinafter referred to as the "width direction" and the symbol B is given). (ie, wider than the touch panel display 2). Further, as shown in FIG. 2, the transport path 3 has a predetermined number of transport path lengths La which can be arranged at a predetermined interval in the transport direction A, and a touch panel is provided at every predetermined interval. The workpiece of the display 2 holds the pedestal 42. Further, the conveying device 4 is not limited to the belt conveyor, and may be, for example, a moving pedestal device including a pedestal on which the workpiece is placed and a linear motion mechanism that linearly moves the pedestal in the conveying direction A, or The arm of the arm that performs the linear motion in the transport direction A.

The irradiation system 6 is configured to irradiate light that is cured by the photocurable resin 39 applied to the touch panel display 2, and includes an irradiation device 24, and a first reflector 26 disposed in the irradiation device 24. Immediately below; and two second reflectors 27 and 27 are disposed on both sides of the irradiation device 24.

Figure 4 shows the illumination device 24, and directly below the illumination device 24. The map of the composition. In addition, FIG. 4 is a view which observes the surface containing the conveyance direction A. The irradiation device 24 includes a linear light source 28 that radiates light of a wavelength that cures the photocurable resin 39 in a line shape, a mirror 29 that performs light distribution control on the linear light source 28, and a box that houses the light source 28 Shaped housing 31. The linear light source 28 is, for example, a high-power ultraviolet lamp of a straight tube type. The linear light source 28 is disposed in a posture extending in the transport direction A across the transport path 3, and the light emission length Lb (FIG. 1) in the transport direction A is formed so as to be uniform throughout the entire length Wa of the transport path 3. The length of the ground illumination. Further, the linear light source 28 may be configured by arranging a plurality of light sources in a line (linear). For example, a short arc source can be used for the light source. The mirror 29 is a light distribution control body that condenses the linear light source 28 in the downward direction Z, and the irradiation device 24 uses an elliptical mirror that surrounds the linear light source 28 and extends along the linear light source 28. The focal point F of the mirror 29 is above the transport surface 3A of the transport path 3 directly below, and is set above the first reflector 26. In other words, the first reflector 26 is incident on the illumination light H1 that is diffused from the focus F toward both sides of the transport direction A.

Further, the irradiation system 6 is provided with a wavelength limiting filter 33 that is disposed close to the irradiation device 24 in the direction Z immediately below the irradiation device 24. The wavelength limiting filter 33 is configured to cut off light having a wavelength that does not contribute to photohardening of the photocurable resin 39 to be cured, and is disposed between the irradiation device 24 and the focal point F, and is formed to cover the casing 31. It illuminates the overall size and shape of the opening 31A (Fig. 1).

The first reflector 26 and the second reflector 27 are reflecting members that obliquely illuminate the conveying surface 3A. More specifically, the touch panel display 2 is coated with a photocurable resin 39 to be cured on the back side of the edge region 18 as described above. Therefore, if light is irradiated from the surface side of the touch panel display 2, the edge region 18 functions as a light-blocking region (non-penetrating portion) for shielding light, and is shielded by the edge region 18 And it produces poor hardening. In particular, as shown in FIGS. 3(A) and 3(B), in the touch panel display 2, since the edge region 18 also includes a wide side, the back side of the wide side is The photocurable resin is liable to cause hardening failure. In this case, there is a problem that although the touch panel display 2 is turned over and light irradiation is performed again from the side of the display panel 8 (ie, the back side), the hardening failure can be reduced, but as a result, Since it is necessary to perform at least two irradiations, the yield is deteriorated, and even if the workpiece is turned over and irradiated, there is a place where the irradiation light cannot be reached due to electrical connection wiring or mounting parts.

Therefore, the present photo-hardening system 1 is configured as follows to achieve a photo-curing treatment for suppressing hardening failure by one irradiation by the transport device 4. In other words, the photo-curing system 1 does not directly illuminate the light from the irradiation device 24 to the touch panel display 2 that is being transported, but is disposed in the direction directly under the irradiation device 24 as shown in FIG. Z is incident on the first reflector 26 of the irradiation light H1 of the irradiation device 24, and the first reflector 26 reflects the irradiation light H1 toward the conveyance direction A, and the reflected light D1 formed by the reflection is irradiated to the touch. Control panel display 2. Further, the light of the light hardening system 1 has a mirror image relationship with respect to the optical axis C of the irradiation device 24 in the conveyance direction A. In other words, the optical system of the photo-curing system 1 is configured to be symmetrical with respect to the optical axis C of the irradiation device 24 in the transport direction A. In the irradiation device 24, the optical axis C is defined as an axis extending from the center O of the linear light source 28 toward the direct downward direction Z. Further, the first reflector 26 is disposed in the direction Z directly below the irradiation device 24 by being fixed by a fixing member (not shown) so as not to be displaced from the irradiation device 24.

More specifically, the first reflector 26 has an oblique incident reflecting surface 40 that is inclined at a predetermined angle with respect to the conveying surface 3A, and the irradiation device is directly above. The incident light H1 incident on the 24th is reflected from the far side of the first reflector 26 toward the transport path 3. The oblique incident reflecting surface 40 is formed in a shape parallel to the linear light source 28 and extending longer than the touch panel display 2 as a workpiece.

FIG. 5 and FIG. 6 are explanatory views showing an irradiation state of light when the touch panel display 2 is transported. Further, in FIG. 5, a cross-sectional view in which the touch panel display 2 is cut in a plane including the transport direction A is shown. As described above, the edge portion 8B of the display panel 8 provided in the touch panel display 2 is coated with the photocurable resin 39, and the upper side thereof is covered by the edge region 18 of the touch panel 10. The touch panel display 2 is transported by holding the workpiece holding pedestal 42 on the transport path 3 with the side (surface side) of the touch panel 10 as the upper side. Further, in the workpiece holding pedestal 42, as shown in FIG. 6, the touch panel display 2 is such that two sides 18A of the rectangular frame-shaped edge region 18 are parallel to the conveying direction A, and the other two sides 18B are The posture in which the transport direction A is orthogonal is held and transported.

As described above, the reflected light D1 reflected by the first reflector 26 toward the far side in the transport direction A is irradiated onto the transport surface 3A of the photo-curing system 1. Since the reflected light D1 is obliquely incident on the transport surface 3A, as shown in FIG. 5, it is obliquely incident on the active region 16 which is the penetration portion of the touch panel display 2, and reaches the photocurable resin 39 on the back surface of the edge region 18. The photocurable resin 39 is photocured by the reflected light D1.

In other words, in the touch panel display 2, the touch panel 10 is configured to be larger than the display panel 8. Therefore, as shown in FIG. 5, the edge region 18 of the touch panel 10 protrudes more toward the transport path 3 than the edge portion 8B of the display panel 8, and thus functions as a so-called eaves with respect to the light irradiated from the surface side. effect. Therefore, the side of the outer edge 18T which is the edge of the outer peripheral side of the edge region 18 is incident on the touch panel. The reflected light D1 of the display 2 is shielded by the edge region 18 and cannot reach the photocurable resin 39. In other words, the photocuring of the photocurable resin 39 is reflected by obliquely incident from the active region 16 of the touch panel display 2 (i.e., from the side of the inner edge 18V which is the edge portion of the inner peripheral side of the edge region 18). It is produced by the irradiation of light D1. However, when the photocurable resin 39 is applied to the position (x=Wb) where the outer edge 18T is deep in the direction of the inner edge 18V of the edge region 18 (x=0), The amount of light to be irradiated on the side of the edge 18T is insufficient, and the hardening failure is likely to occur. In particular, in the touch panel display 2, since the reflected light D1 incident from the side of the outer edge 18T is shielded by the edge region 18 as described above, the problem of poor curing becomes remarkable.

Here, in the photo-curing system 1, the reflected light D1 is set such that the reflected light D1 incident from the side of the inner edge 18V reaches the application position Wb of the photocurable resin 39 on the side of the outer edge 18T. The incident angle θ. The incident angle θ is calculated based on the thickness of the photocurable resin 39, that is, the thickness b of the hardened material, the application position Wb, and the refractive index of the active region 16 (ie, the penetration portion). The inventors of the present invention have found that, in the bonding of the touch panel display 2, when the incident angle θ is approximately 80 degrees, the ultraviolet ray can sufficiently reach the application position Wb. Therefore, in the photo-curing system 1, the oblique incident reflecting surface 40 is optically designed such that the reflected light D1 includes a light component having an incident angle θ=80 degrees or more in a predetermined ratio or more. Thereby, the outer edge 18T of the edge region 18 is extended like an eaves, even when the reflected light D1 incident obliquely from the side of the outer edge 18T is shielded, due to the side from the inner edge 18V (ie, penetration) The incident reflected light D1 can still sufficiently reach the side of the outer edge 18T of the photocurable resin 39, so that the curing failure can be suppressed.

However, as shown in FIG. 6 above, in the transport state of the touch panel display 2, the side 18A of the edge region 18 extends in the transport direction A, and is relatively The oblique incident reflective surface 40 of the reflector 26 extends orthogonally. Therefore, the reflected light D1 that has proceeded from the first reflector 26 in the direction substantially parallel to the transport direction A does not sufficiently enter the back side of the side 18A, and the photocurable resin 39 on the back side of the side 18A is hardened. . Then, as shown in FIG. 6, the light curing system 1 is configured such that the reflected light D1 includes 0 to 90 degrees with respect to the transport direction A in addition to the light component D1a that advances in parallel with the transport direction A. The light component D1b is advanced at an angle (that is, from the oblique incident reflecting surface 40 toward the width direction B of the conveying surface 3A).

Specifically, as shown in FIG. 6 , the light curing system 1 is configured such that the light source of the irradiation device 24 is a linear light source 28 extending orthogonal to the conveyance direction A, and the oblique incident reflection surface 40 is a linear light source 28 . Parallel (i.e., toward the width direction B), and at least the width Wc of the width direction B of the touch panel display 2 in the transport state is longer (i.e., wider toward the width).

The oblique incident reflection surface 40 extends in the width direction B of the transport path 3, so that not only the illumination light H1a that advances from the linear light source 28 in the downward direction Z but also the direction Z with respect to the direct downward direction can be exhibited. The angle α (α>0) is advanced by the illumination light H1b. The light component D1b reflecting the reflected light D1 of the irradiation light H1b advances in the width direction B of the transport path 3 (that is, the side end 3A1 toward the transport surface 3A) at an angle corresponding to the angle ? of the irradiation light H1b. Since the light component D1b is irradiated onto the touch panel display 2, even if the light component D1b is incident from the side of the inner edge 18V on the side 18A extending toward the transport direction A, it can be coated by the light component D1b. The photocurable resin 39 coated on the back side of the side 18A is sufficiently photocured. Further, since the light component D1b includes the light of the incident angle θ as well as the light component D1a of the reflected light D1 that advances in the transport direction A, the light component D1b can reach the photohardening even at the side 18A. Resin 39 is on the side of the outer edge 18T, and can sufficiently inhibit hardening bad.

Here, as shown in FIGS. 3(A) and 3(B), the edge region 18 of the touch panel display 2 is formed such that the width of the side 18B is wider than the side 18A.

Next, the second reflector 27 included in the photo-curing system 1 will be described with reference to FIGS. 1 and 2 which have been described above. The second reflector 27 is disposed on both sides of the transport direction A via the first reflector 26, and reflects the reflected light D1 reflected by the first reflector 26 to obtain the inner edge of the edge region 18. The side of the 18V is obliquely incident on the light reflected by the touch panel display 2. Specifically, each of the second reflectors 27 includes a top reflecting surface 45, a pair of side reflecting surfaces 46 and 46, and a counter reflecting surface 47. As shown in FIG. 1, these are combined to form a box. type. Furthermore, the two second reflectors 27 have the same configuration and optical function.

Figure 7 is a ray diagram of the photohardening system 1. In Fig. 7, the light beam including the cross section in the transport direction A is displayed. The top reflecting surface 45 reflects the light component D1m whose incident angle θ is 90 degrees or more among the reflected light D1 reflected by the first reflector 26 . The light component D1m whose incident angle θ is 90 degrees or more is light that advances in a direction away from the transfer surface 3A. The top reflecting surface 45 is disposed to face the conveying surface 3A so as to cover the upper side of the conveying surface 3A, and is formed in a rectangular plate shape parallel to the conveying surface 3A as shown in Fig. 1 . When the light component D1m is incident on the top surface reflecting surface 45, the light component D1m is reflected toward the side of the conveying surface 3A, and the reflected light D2m is at least smaller than the incident angle θ by 90 degrees. When the reflected light D2m is viewed from the first reflector 26, it is incident on the touch panel display 2 obliquely toward the far side of the transport path 3, and thus is incident obliquely from the side of the inner edge 18V of the edge region 18. The edge 18B of the edge region 18 is farther from the first reflector 26, and the photocurable resin 39 that complements the back side of the edge 18B is photocured.

Among the pair of side reflection surfaces 46 and 46, the light component D1b (FIG. 6) which is advanced toward the side end 3A1 of the conveyance surface 3A is reflected by the reflected light D1 reflected by the first reflector 26. As shown in Fig. 1, the pair of side reflecting surfaces 46 and 46 are disposed to face each other across the conveying surface 3A, and are formed in a rectangular plate shape extending in parallel with the conveying surface 3A. When the light component D1b is incident on the pair of side reflecting surfaces 46 and 46, it is reflected toward the inside of the conveying surface 3A. Since the reflected light is incident on the touch panel display 2 in a direction intersecting the transport direction A, it is obliquely incident on the side 18A of the edge region 18 from the side of the inner edge 18V of the edge region 18, and complements the back side of the side 18A. The photocurable resin 39 is photocured.

The opposite reflecting surface 47 is such that the reflected light D1 reflected by the first reflector 26 and the reflected light D2m reflected by the top reflecting surface 45 are from the first reflector 26 (more precisely, linear) The light component D1n which is located immediately below the light source 28 and reaches the predetermined distance Lc in the transport direction A is reflected in the folding direction at the predetermined distance Lc. As shown in FIG. 7, the opposite reflecting surface 47 is disposed at a position away from the predetermined distance Lc from the position Xa directly below the linear light source 28, and is disposed opposite to the oblique incident reflecting surface 40 of the first reflector 26. Further, it is formed in a rectangular shape extending over at least the length equal to or larger than the width Wa of the transport path 3. When the light component D1n is incident on the opposite reflection surface 47, it is reflected so as to be folded back toward the side of the first reflector 26. The reflected light D2n generated by the reflection is incident obliquely from the side of the inner edge 18V of the edge region 18 to the side 18B of the edge region 18, closer to the side of the first reflector 26, and complements the back of the edge 18B. The photocurable resin 39 on the side is photocured.

In this manner, the reflected light D2m of the top reflecting surface 45, the light component D1n of the opposite reflecting surface 47, and the reflected light of the side reflecting surfaces 46, 46 are obliquely incident on the side 18B of the edge region 18, respectively, from the first The reflector 26 is farther away than the side With the near side and the side 18A, the amount of light incident on the edge region 18 obliquely increases to complement the photohardening, and further hardening can be achieved.

Further, since the optical curing system 1 is provided with the opposite reflecting surface 47, the range in which the light from the touch panel display 2 is irradiated can be shortened to a distance Lc from the position Xa directly below the irradiation device 24. In this manner, by shortening the irradiation range of light, the production time (tact time) of the photo-curing treatment can be shortened, and in addition to the first reflector 26, it is provided between the first reflector 26 and the transport surface 3A. The touch panel display 2 passes through the gap δ, and the gap δ is irradiated by the reflected light D2n reaching the opposite reflecting surface 47 at that point. Therefore, even if the first reflector 26 is disposed directly under the irradiation device 24, the shadow of the conveying surface 3A generated by the first reflector 26 is eliminated by the irradiation of the reflected light D2n, even in the first 1 Photohardening is still possible directly under the reflector 26. Moreover, since the shadow of the conveyance surface 3A is eliminated, the temperature change of the touch panel display 2 at the time of conveyance can be suppressed.

Further, in the photo-curing system 1, the shapes of the reflecting surfaces of the top reflecting surface 45, the side reflecting surfaces 46, 46, and the opposing reflecting surface 47 of the second reflector 27 are respectively flat, but they are not The shape of the reflecting surface may be formed by, for example, a curved surface or an arbitrary surface including a plurality of planes of a plurality of planes.

An example of a preferred specific size of the optical system in the photo-curing system 1 will be described with reference to Fig. 7 . The touch panel display 2 as a workpiece has a rectangular shape having a size of 250 (mm) × 200 (mm), and is conveyed in a posture in which the long side is aligned with the width direction B of the transport path 3. The width Wa of the transport path 3 is 500 (mm), the width of the first reflector 26 is 550 (mm), and the width of the second reflector 27 is 560 (mm). Further, the width of the second reflector 27 is the distance between the pair of side reflection surfaces 46 and 46 in the width direction B, or the width direction B of the opposite reflection surface 47 or the top surface reflection surface 45. The length, for example, corresponds to the shortest of these.

The distance Lc from the position Xa directly below the irradiation device 24 to the opposite reflecting surface 47 is 475 (mm), and the length Ld of the conveying directions A of the side reflecting surfaces 46, 46 and the top reflecting surface 45 is 400 (mm). The half value Le of the length of the transport direction A when the first reflector 26 is viewed from above is 97.5 (mm). In the side view, the side of the lower end 40B of the obliquely incident reflecting surface 40 of the first reflector 26 is superposed on the side reflecting surfaces 46 and 46 and the top reflecting surface 45, and the amount of overlap δa is 22.5 mm.

Further, the distance Ha from the center O of the linear light source 28 of the irradiation device 24 to the transfer surface 3A of the transport path 3 is 200 (mm), and the gap δ between the immediately below the first reflector 26 and the transport surface 3A is 10 (mm). The angle θ1 between the oblique incident reflecting surface 40 of the first reflector 26 and the direct downward direction Z is 54 degrees, and the length M from the upper end 40A to the lower end 40B along the oblique incident reflecting surface 40 is 120.5 (mm). . The distance Hb from the irradiation opening 31A of the irradiation device 24 (the front end of the exit side of the mirror 29) to the upper end 40A of the oblique incident reflection surface 40 is 70 (mm). Further, the length Hc of the facing reflection surface 47 and the direction Z of the pair of side reflecting surfaces 46, 46 is 80 (mm).

In order to prevent the positional displacement of the first reflector 26 and the second reflector 27 from facing each other, the units are integrally unitized to form the reflector unit 90. FIG. 8 is a perspective view showing the configuration of the reflector unit 90. The reflector unit 90 is provided with a support frame 92 in which four rod-shaped frames 91 are combined into a rectangular frame shape. On both sides of the width direction B of the support frame 92, support bodies 94 and 94 that support one pair of the first reflectors 26 are fixed. The pair of supports 94 are connected by two axes 95 and 95 extending in the width direction B. In the first reflector 26, the two shafts 95 are inserted into the width direction B and supported by the support body 94. Even when the first reflector 26 is thermally expanded or the like, it is difficult to obliquely incident the reflecting surface. 40 distortions occurred.

Further, the pair of support bodies 94 and 94 integrally include a fixing portion 94A that fixes the end portion 93A of the rod-shaped second reflector supporting frame 93 extending in the width direction B, and the second reflector 27 is The second reflector support frame 93 fixed to the fixing portion 94A is supported by the support frame 92. The second reflector supporting frame 93 that supports the second reflector 27 is fixed to the support body 94 that supports the first reflector 26, thereby preventing the position of the second reflector 27 from being displaced from the first reflector 26. A fixing member (not shown) that fixes the irradiation device 24 is connected to the support body 94, and the positional displacement of the first reflector 26, the second reflector 27, and the irradiation device 24 can be prevented. Further, a pair of support bodies 94 and 94 are provided with a vent hole 96 penetrating in the width direction B, and the cooling air is sent to the first reflector 26 through the vent hole 96 from the width direction B to perform air cooling. The reflector unit 90 is fixedly disposed above the conveying device 4 by being supported by a support member (not shown) together with the irradiation device 24.

Fig. 9 is a perspective view showing a configuration of an illuminometer 70 for measuring the illuminance of the transport surface 3A, and Fig. 10 is a perspective view showing a cross section of the illuminometer 70. In the photo-curing system 1, the photocurable resin 39 on the back side of the edge region 18 is cured by light having a predetermined incident angle θ or more. Therefore, in the performance evaluation of the photo-curing system 1, the measurement of the amount of light above the incident angle θ is important. However, since the general illuminance meter is configured to take in light incident on the detection surface irrespective of the incident angle θ, it is not possible to measure only the amount of light having a predetermined incident angle θ or more.

Therefore, the illuminometer 70 includes the illuminometer main body 71 and the incident angle attached to the illuminometer main body 71 so as to measure the amount of light equal to or greater than the predetermined incident angle θ, as shown in FIGS. 9 and 10 . Limit the mounting fitting 72. The illuminometer main body 71 is provided on the surface of the plate-shaped base body 73 placed on the conveying surface 3A, and is provided with a light detecting surface 74. In order to match the height from the transfer surface 3A to the detection surface 74 The thickness of the surface of the member is formed by the thickness of the workpiece or the thickness of the workpiece and the thickness of the workpiece holding pedestal 42. As shown in FIG. 10, a light-picking portion 75 having a pinhole shape is provided on the detecting surface 74. A photo sensor (not shown) is disposed at the bottom of the light taking portion 75, and the amount of light taken in from the light taking portion 75 is detected by the photo sensor. The photo sensor outputs a detection signal corresponding to the amount of light, and measures the amount of light based on the detection signal. Further, in the illuminometer main body 71, if the structure of the light taking portion 75 is the same, an existing illuminometer can be used.

The incident angle restricting attachment fitting 72 is a member that restricts the incident angle θ of the light incident on the light taking-in portion 75, and includes the mounting member 77 and the light restricting member 78. The mounting member 77 is a component that is detachably fitted to the illuminometer main body 71. Further, the surface 77A of the mounting member 77 is formed to cover a surface of the surface of the detecting surface 74 of the illuminometer main body 71 other than the light taking portion 75 and its vicinity. The light-restricting member 78 is provided with an incident angle restricting plate 79 having a disk shape in a plan view, and is disposed so as to be provided with a gap P between the surface 77A of the mounting member 77 covering the detecting surface 74; The body 80 guides the light incident on the gap P to the light taking portion 75; and the gap P serves as the light intake port 81.

FIG. 11 is an explanatory diagram of light limitation of the illuminometer 70. The incident angle limiting plate 79 is disposed at the center of the back surface 79A which is the opposite surface of the mounting member 77, and is disposed on the tapered surface of the light guide 80, which is formed as a so-called cone. shape. The inclination angle β of the tapered surface is formed to be substantially equal to the incident angle θ of the light Q to be detected, and the gap P shields light smaller than the incident angle θ. Thereby, in the light entering the gap P from the light entrance 81, only the light Q having the incident angle θ or more reaches the light guide 80. The light guide body 80 guides the light Q to the optical member of the light take-in portion 75. Specifically, the front end 80A is formed to be located at the light take-in portion 75. In the shape of a rod, the light incident on the lateral outer circumferential surface 80B is guided to the front end 80A to be incident on the light taking portion 75. In the illuminometer 70, the light guide body 80 uses a cone mirror.

Fig. 12 is a view showing the detection sensitivity characteristics of the illuminometer 70. The light sensor of the illuminometer 70 has a characteristic that the detection sensitivity is higher as the incident angle θ is smaller. Therefore, as shown in FIG. 12, when the incident angle limiting mounting fitting 72 is not mounted and the incident angle θ of the light reaching the light taking-in portion 75 is not limited, the detection sensitivity is obtained when the incident angle θ is, for example, 80 degrees or more. It is relatively low, and measurement of light having an incident angle θ of 80 degrees or more cannot be performed. On the other hand, when the incident angle restricting attachment fitting 72 is attached and the incident angle θ of the light reaching the light taking-in portion 75 is limited to, for example, 80 degrees or more, light having an incident angle θ of 0 to 80 degrees is shielded. The detection sensitivity seen is zero. Thereby, it is possible to detect the light correctly only for light having an incident angle θ of 80 degrees or more.

Further, as described above, when the edge region 18 is annular, since the light incident obliquely from the outer edge 18T side of the edge region 18 is shielded, the photocurable resin 39 on the back side of the edge region 18 is mainly The light is hardened by light incident from the inner side of the 18V side. In order to shield the amount of light incident from the outer edge 18T side of the edge region 18, the illuminometer 70 takes only the amount of light incident from the inner edge 18V side from the light entrance 81, so 13(A) and FIG. 13(B), the light-shielding member 85 is detachably provided, and the light-shielding member 85 is engaged with the light-intake port 81 which is opened 360 degrees around the light guide 80, and Block the range of 0 to 180 degrees (ie the range of half a week). The light shielding member 85 is engaged with a semi-annular member of the light extraction inlet 81, and the light shielded by the light shielding member 85 corresponds to light incident obliquely from the outer edge 18T side of the edge region 18.

As shown in FIG. 13(A), by the state in which the light shielding member 85 is attached The illuminance 70 measures the illuminance, and the composition of the light which contributes to the hardening of the photocurable resin 39 coated on the back surface of the annular edge region 18 can be accurately measured. Further, when the light is incident on the back surface of the edge region 18 of the workpiece in all directions, as shown in FIG. 13(B), the illuminance can be accurately measured by detaching the light shielding member 85 from the illuminometer 70. The component of light contributing to the hardening of the photocurable resin 39 is measured. Further, the range in which the light shielding member 85 closes the light entrance 81 can be appropriately changed in accordance with the range of light incident on the back side of the edge region 18.

As described above, the optical curing system 1 according to the present embodiment is configured to include the first reflector 26 disposed at a position Xa directly below the irradiation device 24, and the irradiation device 24 has an orthogonal direction to the conveying direction A. The linear light source 28 extending in the direction (width direction B) irradiates the light of the linear light source 28 to the first reflector 26, and the first reflector 26 has a touch panel that is parallel to the linear light source 28 and is used as a workpiece. The obliquely incident reflecting surface 40 of the display 2 is extended longer, and the oblique incident reflecting surface 40 irradiates the touch panel display 2 with the reflected light D1 of a predetermined incident angle θ or more.

Thereby, the reflected light D1 is obliquely incident on the edge region 18, and the photocurable resin 39 on the back side of the edge region 18 can be photocured. Further, since the reflected light D1 reflected by the oblique incident reflecting surface 40 includes the light component D1b that is advanced toward the side end 3A1 of the conveying surface 3A, the side 18A extending in the conveying direction A in the edge region 18 is from the inner edge 18V. The light component D1b is incident on the side, and the photocurable resin 39 applied to the back side of the side 18A can be sufficiently light-cured by the light component D1b.

In order to improve the light controllability of the illumination light from the irradiation device 24, the first reflector 26 is configured to be fixedly disposed at a position Xa directly below. According to this configuration, the light reaching the incident angle θ on the back side of the edge region 18 where the hardening failure occurs in the workpiece can be efficiently applied to the workpiece by the reflected light D1 of the first reflector 26 Irradiation.

Further, the photo-curing system 1 according to the present embodiment is configured to include a counter-reflecting surface 47 that reflects light from the oblique incident reflecting surface 40 toward the transport direction A to oblique incident reflection. The side of the face 40. According to this configuration, the reflected light D2n reflected by the opposite reflecting surface 47 is obliquely incident on the side of the edge 18B of the edge region 18 closer to the side of the first reflector 26 from the side of the inner edge 18V of the edge region 18. The photocurable resin 39 on the back side of the side 18B is photocured. Further, since the range in which the light is irradiated onto the touch panel display 2 is shortened by the opposing reflecting surface 47, the production time of the photo-curing treatment can be shortened.

Further, the photo-curing system 1 according to the present embodiment is configured to reflect the light on the reflecting surface 47 to the conveying surface 3A below the first reflecting body 26. According to this configuration, since the shadow of the transport surface 3A generated by the first reflector 26 can be eliminated by the irradiation of the reflected light D2n of the opposite reflecting surface 47, even under the first reflector 26, Continuous light hardening. Moreover, since the shadow of the conveyance surface 3A is eliminated, the temperature change of the touch panel display 2 at the time of conveyance can be suppressed.

Further, according to the optical curing system 1 of the present embodiment, the side reflecting surface 46 is configured such that the light from the oblique incident reflecting surface 40 toward the side of the conveying surface 3A is reflected toward the inside of the conveying surface 3A. The reflected light of the side reflecting surface 46 is incident on the touch panel display 2 from the direction intersecting the transport direction A, and thus can be obliquely incident on the side 18A of the edge region 18 from the side of the inner edge 18V of the edge region 18, thereby The photocurable resin 39 is photocured.

Further, according to the optical curing system 1 of the present embodiment, the top reflecting surface 45 is configured such that the light from the oblique incident reflecting surface 40 toward the upper side of the conveying surface 3A is reflected toward the side of the conveying surface 3A. The reflected light D2m of the top reflecting surface 45 is due to the first When the reflector 26 is viewed from the far side of the transport path 3 and obliquely incident on the touch panel display 2, it can be obliquely incident from the side of the inner edge 18V of the edge region 18 to the side 18B of the edge region 18 from the first reflector 26 The photocurable resin 39 on the back side of the side 18B is photocured by the far side.

Further, the illuminometer 70 according to the present embodiment is configured to include the light guide 80 disposed on the back surface of the incident angle limiting plate 79 and guide the light incident on the outer circumferential surface 80B to the light taking portion 75, and The back surface 79A of the incident angle limiting plate 79 is a tapered surface centered on the light guide body 80 and inclined at an angle β corresponding to the incident angle θ of the light Q of the detection target. With this configuration, the light Q which is smaller than the incident angle θ is shielded by the incident angle restricting plate 79, and the light Q having only the incident angle θ or more reaches the outer peripheral surface 80B of the light guide body 80, and The light guide body 80 is guided to the light taking-in portion 75. Thereby, it is possible to measure only the amount of light Q of the light Q above the incident angle θ.

In addition, the above-described embodiments are merely illustrative of the present invention, and modifications and applications can be arbitrarily carried out without departing from the spirit and scope of the invention.

In the above-described embodiment, the shape of the oblique incident reflecting surface 40 of the first reflector 26 is not limited to a flat surface, and can be appropriately changed according to the light distribution and the incident angle θ of the transport surface 3A. 14 and 15 are views showing a modification of the oblique incident reflecting surface 40. For example, as shown in FIG. 14(A), a plurality of (three in the illustrated example) plane reflection surfaces 140A, 140B, and 140C may be formed to have oblique incidence, in which the diffusion angle of the reflected light D1 is different. The first reflector 126 of the reflecting surface 140. Further, for example, as shown in FIG. 14(B), the first reflector 226 including the parabolic oblique incident reflecting surface 240 may be used. Further, for example, as shown in FIG. 14(C), the first reflector 326 having the oblique incident reflecting surface 340 having an elliptical surface may be used.

Further, for example, as shown in FIG. 15(A), the first reflector 426 including the oblique incident reflecting surface 440 having the long focal elliptical surface may be used. By setting the shape of the oblique incident reflecting surface 440 to the long focal elliptical surface, the incident angle of the reflected light D1 can be concentrated at a predetermined incident angle θ. However, since the irradiation area is widened, as shown in FIG. 15(B), it is preferable to provide the opposite reflecting surface 47 so as to reflect the reflected light D1.

In the above embodiment, the edge region 18 may also be a partially open loop. Moreover, as long as it is a ring shape, it is not limited to the rectangular frame shape. Furthermore, the sides 18A, 18B of the edge region 18 do not have to be connected.

In the above-described embodiment, the linear light source 28 and the first reflector 26 of the irradiation device 24 are arranged orthogonal to the transport direction A of the transport path 3. However, the present invention is not limited thereto, and as shown in FIG. 16 , the linear light source 28 and the first reflector 26 may be disposed obliquely with respect to the conveyance direction A at a predetermined angle γ. When the linear light source 28 and the first reflector 26 are inclined with respect to the conveyance direction A, the amount of illumination light to the back side can be increased while maintaining the light-curable resin 39 on the back side of the edge region 18 by light irradiation. 1/cos γ or so. When the linear light source 28 and the first reflector 26 of the irradiation device 24 are inclined with respect to the transport direction A of the transport path 3, as shown in FIG. 16, the pair of second reflectors 27 and 27 are attached. Since the space in which the irradiation device 24 is inclined with respect to the conveyance direction A is formed between the two, it is formed in a trapezoidal shape in plan view.

In the above-described embodiment, the material to be cured by the photo-curing system 1 is not limited to the photocurable resin, and any photocurable material may be used as long as it is a material that is cured by light irradiation. Further, the photocurable material is not limited to a material which is cured by ultraviolet rays, and a material which is hardened by light of another predetermined wavelength can be used.

Moreover, the present invention is a system for bonding a liquid crystal display to a touch panel, and is not limited by the structure and manufacturing method of the liquid crystal display itself, and the structure and manufacturing method of the touch panel itself. In addition, in general, the touch panel can be classified into a projected capacitive method, a resistive film method, a surface capacitive method, an ultrasonic method, and an infrared method according to different detection principles of the touch operation, although various configurations are The invention is not limited by the differences in the configurations.

Further, in the above-described embodiments, the directions, horizontal values, and the like, and various numerical values and shapes are not intentionally excluded unless otherwise stated, such as directions, peripheral ranges, and approximate shapes. As long as the same effect can be achieved, or does not deviate from the critical value of the value itself, that is, the range including the surrounding and the approximate shape (so-called equal range).

2‧‧‧Touch panel display (workpiece)

3A‧‧‧Transfer surface

3A1‧‧‧ side

6‧‧‧ illumination system

16‧‧‧Active area (penetration)

18‧‧‧Edge area (shading area)

18A, 18B‧‧‧ edge of the marginal zone

26‧‧‧1st reflector

28‧‧‧Linear light source

29‧‧‧Mirror

40‧‧‧ oblique incident reflecting surface (first reflecting surface)

A‧‧‧Transfer direction

B‧‧‧Width direction

D1a, D1b‧‧‧ light components

H1a, H1b‧‧‧ illumination

Wc‧‧‧Width

The direction of Z‧‧‧

‧‧‧‧ angle

Claims (7)

A light curing system for irradiating a light-shielding region that shields light from a surface and having a light-curable material on a bonding surface, and irradiating light from an irradiation device from a surface side of the workpiece to cause the light to be lighted The hardening material is cured; and the conveying device includes: a conveying device that conveys the workpiece directly under the irradiation device; and a first reflector that is fixedly disposed directly below the irradiation device; The irradiation device includes a linear light source extending in a direction transverse to a conveying direction of the conveying device, and the light of the linear light source is applied to the first reflector, and the first reflector has a parallel to the linear light source. The first reflecting surface that extends longer than the workpiece, and the first reflecting surface is irradiated with the reflected light having a predetermined incident angle or more with respect to the direction directly under the irradiation device to the workpiece conveyed by the conveying device. The photo-curing system of claim 1, further comprising: a second reflector that reflects the reflected light incident from the first reflecting surface obliquely with respect to a direction directly under the irradiation device, and is irradiated by the transporting The above workpiece conveyed by the device. The light-curing system of claim 2, wherein the second reflection system includes a second reflection surface that is disposed opposite to the first reflection surface of the first reflector on the transport path of the transport device, and the second The reflecting surface reflects light from the first reflecting surface toward the far side of the conveying direction of the conveying device on the first reflecting surface side. The light hardening system of claim 3, wherein The second reflecting surface reflects light on a conveying surface of the conveying device below the first reflecting body. The photo-curing system according to any one of claims 2 to 4, wherein the second reflector is provided with a third reflecting surface disposed on both sides of the conveying surface of the conveying device, and the third reflecting surface is self-contained The light having the first reflecting surface facing the side of the conveying surface is reflected toward the inside of the conveying surface. The photo-curing system according to any one of claims 2 to 5, wherein the second reflector includes a fourth reflecting surface that covers the conveying surface of the conveying device, and the fourth reflecting surface is from the first The light whose reflecting surface faces the above-mentioned conveying surface is reflected toward the side of the conveying surface. The photohardening system according to any one of claims 1 to 6, wherein in the workpiece, the light shielding region is formed in a ring shape, and an inner side of the light shielding region is transparent to light.