KR20160033310A - Apparatus And Method For Hardening Resin - Google Patents

Abstract

The present invention relates to a resin curing device bonding a panel to a cover glass. Especially, the technical purpose of the present invention is to provide the resin curing device capable of radiating light, outputted by a curing unit, toward a boundary unit located between display and non-display areas of the cover glass, and a method thereof. According to the present invention, the resin curing device comprises: an absorption unit including an absorption apparatus; the curing unit configured to cure applied resin; and a control unit controlling an angle of the curing unit.

Description

[0001] Apparatus and Method For Hardening Resin [0002]

The present invention relates to an apparatus and a method for curing a resin for attaching a panel and a cover glass.

Flat panel displays (FPDs) are used in various types of electronic products including mobile phones, tablet PCs, and notebook computers. Examples of flat panel display devices include a liquid crystal display (LCD), a plasma display panel (PDP), and an organic light emitting display (OLED) (EPD: ELECTROPHORETIC DISPLAY) are also widely used.

Among flat panel display devices (hereinafter simply referred to as 'display devices'), a liquid crystal display (LCD) is an apparatus for displaying an image using optical anisotropy of a liquid crystal, and has advantages of thinness, small size, low power consumption, Because it is widely used.

Among the display devices, an organic light emitting display device uses a self-luminous element that emits light by itself, and thus has advantages such as a fast response speed, a high luminous efficiency, a high luminance and a large viewing angle , It is attracting attention as a next generation flat panel display.

The panel applied to the display devices is generally manufactured by a process of attaching a lower substrate and an upper substrate.

A cover glass for protecting the upper substrate is adhered to an upper end of the upper substrate by an adhesive such as a resin.

FIG. 1 is an exemplary view for explaining a conventional resin curing method. 1 shows a curing unit 40 for curing the resin 20 adhered between the panel 10 and the cover glass 30 by irradiating light onto the plane of the panel 10 placed on the stage 50, And a hardening portion 40 for irradiating light on the side surface of the panel 10 placed on the stage 50 to harden the resin 20 adhered between the panel 10 and the cover glass 30 . In Fig. 1, reference numeral 11 denotes a lower polarizing film, 12 denotes a lower substrate, 13 denotes an upper substrate, and 14 denotes an upper polarizing film.

The cover glass (30) and the panel (10) are bonded together by the resin (20).

The panel 10 is composed of a display area for outputting an image and a non-display area surrounding the outer area of the display area and not outputting an image.

The cover glass 30 is for protecting the panel 10 and the cover glass 30 is also provided with a cover glass display area 32 and a cover glass non- 31). The cover glass non-display area 31 is coated with a black matrix. In this case, the resin 20 is applied to the entire display area 32 of the cover glass and a part of the non-display area 31 of the cover glass as shown in FIG. 1, And an upper polarizing film 14 is attached to a region corresponding to the display region 32 of the cover glass.

When the cover glass 30 is attached to the panel 10 by the resin 20, the hardened portion 40 disposed at the upper end of the plane of the panel 10 is attached to the cover glass 30 ) Is scanned to cure the resin. This curing process is called main curing process. In general, in the non-display area 31 of the cover glass to which opaque material is applied, the light can not normally pass through the cover glass. Therefore, the resin 20 applied to the lower end of the non-display area 31 of the cover glass is not completely cured by the main curing process.

Accordingly, when the main curing process is completed, the curing unit 40 disposed on the side of the outer frame of the panel 10 to which the cover glass 30 is attached is cured by the side curing process .

However, as described above, even if the main curing process is performed, the resin applied to the lower end of the non-display area 31 of the cover glass 30 is not cured well. Further, even when the side-curing process is performed, the resin applied to the region spaced apart from the outer edge of the panel is not cured well.

1, the resin 21 applied to a region of the non-display region 31 of the cover glass 30 adjacent to the boundary portion 33 with the display region 32, for example, Is not well cured even when the main curing process and the side curing process are performed, and therefore, the adhesion of the resin is deteriorated.

Accordingly, bubbles may be generated in the resin 21 applied to the region of the non-display region 31 adjacent to the boundary portion 33. Accordingly, when the viewing angle is checked, A viewing angle bubble phenomenon in which light is emitted from the non-display region 31 of the display region 31 may occur.

The present invention has been proposed in order to solve the above-described problems, and provides a resin curing apparatus and method capable of irradiating light output from a curing unit in a direction of a boundary between a non-display area of the cover glass and a display area To be a technical challenge.

According to an aspect of the present invention, there is provided a resin curing apparatus comprising: a suction unit having an adsorber capable of adsorbing a panel on which a cover glass is adhered by resin; A curing unit for curing the resin applied to the panel; And a control unit for controlling the angle of the hardening unit so that the light output from the hardening unit can advance in a boundary direction between the non-display area and the display area of the cover glass.

According to an aspect of the present invention, there is provided a method of curing a resin, comprising: adsorbing a panel on which a cover glass is adhered by a resin to a suction unit on which an adsorber is mounted; Moving the hardened portion along a plane of the cover glass; And controlling the angle of the hardened portion so that the light output from the hardened portion advances in the direction of a boundary between the non-display region of the cover glass and the display region.

According to the present invention, since the resin applied between the panel and the cover glass is completely cured, defects such as viewing angle bubbles can be improved.

Further, according to the present invention, the resin applied between the panel and the cover glass is completely cured, so that the adhesive force of the resin can be improved, whereby the panel and the cover glass can be completely bonded.

1 is an exemplary view for explaining a conventional resin curing method;
2 is a view illustrating a method of curing a resin adhered between a panel and a cover glass using a resin curing apparatus according to the present invention.
Fig. 3 is an exemplary view for explaining a method of scanning a plane of a cover glass by a resin curing apparatus according to the present invention; Fig.
4 is an exemplary view for explaining a method in which a resin curing apparatus according to the present invention irradiates light in a boundary direction between a non-display region of a cover glass and a display region from a top of a display region of a cover glass.
Fig. 5 is an exemplary view for explaining a main curing step in a resin curing method according to the present invention. Fig.
6 is an exemplary view for explaining an inclined curing process in a resin curing method according to the present invention.
7 is an exemplary view for explaining a side curing process in a resin curing method according to the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims.

The shapes, sizes, ratios, angles, numbers, and the like disclosed in the drawings for describing the embodiments of the present invention are illustrative, and thus the present invention is not limited thereto. Like reference numerals refer to like elements throughout the specification. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. In the case where the word 'includes', 'having', 'done', etc. are used in this specification, other parts can be added unless '~ only' is used. Unless the context clearly dictates otherwise, including the plural unless the context clearly dictates otherwise.

In interpreting the constituent elements, it is construed to include the error range even if there is no separate description.

In the case of a description of the positional relationship, for example, if the positional relationship between two parts is described as 'on', 'on top', 'under', and 'next to' Or " direct " is not used, one or more other portions may be located between the two portions.

In the case of a description of a temporal relationship, for example, if the temporal relationship is described by 'after', 'after', 'after', 'before', etc., May not be continuous unless they are not used.

The first, second, etc. are used to describe various components, but these components are not limited by these terms. These terms are used only to distinguish one component from another. Therefore, the first component mentioned below may be the second component within the technical spirit of the present invention.

In describing the components of the present invention, terms such as first, second, A, B, (a), (b) and the like can be used. These terms are intended to distinguish the components from other components, and the terms do not limit the nature, order, order, or number of the components. When an element is described as being "connected", "coupled", or "connected" to another element, the element may be directly connected to, coupled to, or connected to the other element, It is to be understood that an element may be " interposed "or that each element may be" connected ", "coupled" or "connected" through another element.

It is to be understood that each of the features of the various embodiments of the present invention may be combined or combined with each other, partially or wholly, technically various interlocking and driving, and that the embodiments may be practiced independently of each other, It is possible.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a view illustrating a method of curing a resin adhered between a panel and a cover glass using a resin curing apparatus according to the present invention. FIG. 3 is a cross- Fig. 4 is a view for explaining a method in which the resin curing apparatus according to the present invention irradiates light from the top of the display region of the cover glass in the direction of the boundary between the non-display region of the cover glass and the display region Fig.

As shown in FIG. 2, the resin curing apparatus according to the present invention includes a suction unit 300 having an adsorbent capable of adsorbing a panel 100 on which a cover glass 110 is adhered by resin, A supporting unit 200 supporting the suction unit 300, a hardening unit 400 for hardening the resin applied to the panel 100 disposed on the suction unit 300, The angle of the curing unit 400 is set such that light emitted from the curing unit 400 can travel from the top of the display area of the cover glass 110 in the direction of the boundary 113 between the non-display area of the cover glass 110 and the display area. And a control unit 500 for controlling the control unit 500.

First, in the panel 100, pixels are formed in a region where a plurality of gate lines and data lines cross each other.

The structure of the pixel may be variously changed according to the type of the panel 100.

When the panel 100 is an organic light emitting panel, the panel 100 includes an organic light emitting diode, a plurality of thin film transistors connected to a data line and a gate line for controlling the organic light emitting diode, and a storage capacitor And an upper substrate for sealing the lower substrate.

When the panel 100 is a liquid crystal panel, the panel 100 may be composed of two glass substrates and a liquid crystal layer formed between the two glass substrates. In this case, the lower substrate is provided with a plurality of data lines, a plurality of gate lines crossing the data lines, and a plurality of thin films formed in pixels defined by the intersections of the data lines and the gate lines, (TFT), a plurality of pixel electrodes (not shown) formed on the pixel and adapted to charge a data voltage, and a common electrode for driving the liquid crystal filled in the liquid crystal layer together with the pixel electrode .

As described above, the data lines and the gate lines are formed in the panel 100, and the pixels 110 are arranged in a matrix form for each intersection of the data lines and the gate lines.

The panel 100 includes a display area through which the image is output through the organic light emitting diode or the liquid crystal, and a non-display area surrounding the outer area of the display area and not outputting the image.

2, a cover glass 110 for protecting the panel 100 is attached to the upper surface of the panel 100 by a resin (not shown). The resin may be a transparent material such as OCR (Optical Clear Resin).

The resin (not shown) may be applied to the panel 100 or the cover glass 110. However, when the resin (not shown) is formed on the panel 100, the display region of the panel 100 may be unfilled with resin. Accordingly, the resin is applied to the cover glass 110, and then is adhered to the panel 100.

The cover glass 110 attached to the plane of the panel 100 by the resin (not shown) also includes a display region 111 corresponding to the display region and the non-display region of the panel 100, And a non-display area 112. That is, the display area 111 of the cover glass 110 corresponds to the display area of the panel 100, and the non-display area 112 of the cover glass 110 corresponds to the ratio And corresponds to the display area.

Hereinafter, the present invention will be described with reference to the display region 111 and the non-display region 112 of the cover glass 110 for convenience of explanation.

The non-display area 112 is divided into a first non-display area A, a second non-display area B, a third non-display area C, and a fourth non-display area D.

That is, the first non-display area to the fourth non-display area A to D refer to four outer frames of the panel 100 or the cover glass 110.

A black matrix is applied to the first to fourth non-display areas (A to D).

The panel 100 in which the cover glass 110 is adhered by the resin (not shown) is disposed on the adsorption unit 300, and the resin is cured by the curing unit 400.

In this case, the curing unit 400 disposed on the upper surface of the panel 100 scans the entire plane of the panel 100 and the cover glass 110 to cure the resin. The process in which the hardening unit 400 scans the entire plane of the panel 100 and the cover glass 110 and hardens the resin is called a main curing process.

By the main curing step, the resin applied to the display area 111 can be completely cured. However, the resin applied to the non-display area 112 is not completely cured.

Therefore, when the main curing process is completed, the position of the adsorption unit 300 is changed so that the side surface of the panel 100 faces the curing unit 400, or the position of the curing unit 400 is changed The position is changed.

When the side surface of the panel 100 is disposed at a position facing the curing unit 400, the curing unit 400 sequentially irradiates light to the side surfaces of the panel 100, . The step of curing the resin sequentially adhering to the side surfaces of the curing unit 400 is referred to as a side curing process.

However, even in the above-described side-curing process, the resin applied to the region of the non-display region 112 of the cover glass 110 adjacent to the boundary portion 113 forming the boundary with the display region 111, Lt; / RTI >

Therefore, in the resin curing apparatus according to the present invention, after the main curing step or after the side curing step, the controller 500 controls the light output from the curing unit 400 to be emitted from the cover glass 110 The cover glass 110 is moved from the upper end of the display area 111 toward the boundary part 113 formed between the non-display area 112 and the display area 111 of the cover glass 110, (400).

Accordingly, the resin of the non-display region 112, which is applied to the region adjacent to the boundary portion 113 forming the boundary with the display region 111, can be completely cured. This process is called tilt curing process.

The resin applied between the panel 100 and the cover glass 110 can be completely cured by the main hardening step, the side hardening step and the inclined hardening step.

Next, the adsorption unit 300 functions to fix the panel 100 on which the cover glass 110 is adhered by a resin (not shown).

The suction unit 300 is formed in a flat plate shape so that the panel 100 can be seated.

An adsorber (not shown) capable of adsorbing the panel 100 is mounted on a surface of the adsorption unit 300. The adsorbent (not shown) may adsorb the panel 100 using a vacuum. Since the adsorber is generally used in a panel manufacturing process, a detailed description thereof will be omitted.

Next, the curing unit 400 performs a function of curing the resin applied to the panel 100 disposed on the adsorption unit 300. When the resin is cured by ultraviolet rays, the curing unit 400 may emit ultraviolet rays. In this case, the curing unit 400 may include a plurality of light emitting diodes (LEDs) capable of emitting ultraviolet rays.

The hardening unit 400 may be formed to cover the entire plane of the cover glass 110, but may be formed in a line shape as shown in FIG.

In this case, the hardening unit 400 can harden the resin while scanning the entire plane of the cover glass 110.

In the state where the position of the curing unit 400 is fixed, the entire plane is scanned by the curing unit 400 by changing the position of the suction unit 300, and the resin may be cured have.

4 under the control of the control unit 500 so that the curing unit 400 is moved from the upper end of the display area 111 of the cover glass 110 to the cover The light may be irradiated in the direction of the boundary 113 between the non-display area 112 of the glass 110 and the display area 111. [

Next, the supporter 200 performs a function of supporting the adsorption unit 300. The support part 200 may be moved up and down under the control of the controller 500. [ The support unit 200 may be rotated in a clockwise or counterclockwise direction under the control of the controller 500.

Finally, the control unit 500 controls the curing unit 400.

3, the control unit 400 controls the curing unit 400 to cover the entire surface of the cover glass 110, such that the curing unit 400 can cover the entire surface of the cover glass 110, And moves on the plane of the glass 110. 3, the curing unit 400 advances in the K-direction parallel to the plane of the cover glass 110. As shown in Fig.

The resin applied between the panel 400 and the cover glass 110, particularly, the resin applied to the display area 111 is primarily cured by the main elapse process as described above .

The control unit 400 may change the position of the curing unit 400 so that the curing unit 400 irradiates light in a lateral direction of the cover glass 110 and the panel 100, The position of the adsorption unit 300 can be changed. This operation is performed during the side hardening process.

However, as described above, by the main curing process and the side curing process, it is possible to prevent the non-display region 112 of the cover glass 110, which is formed between the non-display region 112 and the display region 111, The resin applied to the region adjacent to the boundary portion 113 is not completely cured.

Therefore, in the resin curing apparatus according to the present invention, after the main curing step or after the side curing step, the controller 500 controls the light output from the curing unit 400 to be emitted from the cover glass 110 (Not shown) of the cover glass 110 in the direction of the boundary 113 between the non-display area 112 and the display area 111 from the upper end of the display area 111, Similarly, the angle of the curing unit 400 is controlled.

The light output from the curing unit 400 is emitted from the upper end of the display region 111 of the cover glass 110 to the non-display region 112 and the display region 111 of the cover glass 110. [ The resin adjacent to the boundary portion 113 of the non-display region 112 can be completely cured.

The resin applied to the region of the non-display region 112 adjacent to the boundary portion 113 is a region where the light output from the curing portion 400 is irradiated to the black matrix It can not be completely cured.

The resin applied to the region of the non-display region 112 adjacent to the boundary portion 113 is spaced apart from the outermost side of the panel 100 and the cover glass 110 by a certain distance So that it can not be completely cured even by the above-mentioned side hardening process.

However, according to the present invention, the angle of the curing unit 400 may be changed as shown in FIG. 4, under the control of the controller 500. In this case, since the light output from the hardening unit 400 is not blocked by the black matrix covering the non-display area 112, the light emitted from the non-display area 112 , And may be transmitted to an area adjacent to the boundary section 113.

Therefore, the resin of the non-display region 112, which is applied to the region adjacent to the boundary portion 113, can be completely cured.

As described above, the present invention is characterized in that, by changing the light irradiation angle of the curing unit 400, a resin (not shown) coated on a region adjacent to the boundary portion 113 of the non-display region 112 Can be completely cured.

Therefore, according to the present invention, the resin applied between the panel 100 and the cover glass 110 can be completely cured, so that no bubbles are generated in the resin. Therefore, defects such as the viewing angle bubble do not occur.

According to the present invention, since the resin applied between the panel 100 and the cover glass 110 can be completely cured, the adhesive strength of the resin becomes excellent, The cover glass 110 can be completely bonded.

Hereinafter, a resin curing method according to the present invention will be described in detail with reference to Figs. 2 to 7.

FIG. 5 is a view for explaining a main curing process in the resin curing method according to the present invention, FIG. 6 is an illustration for explaining an inclining curing process in the resin curing method according to the present invention, and FIG. FIG. 1 is an exemplary view for explaining a side hardening process among resin curing methods according to the present invention; The same or similar contents as those described above are omitted or briefly described.

The resin curing method according to the present invention comprises a step of adsorbing the panel 100 on which the cover glass 110 is adhered by resin to the adsorption unit 300 on which the adsorption apparatus is mounted, The curing unit 400 irradiates the plane of the cover glass 110 with light so as to cure the resin so that the curing unit 400 irradiates the plane of the cover glass 110 4 and 6, the angle of the curing unit 400 is controlled so that the light output from the curing unit 400 is transmitted to the display area of the cover glass 110, (113) between the non-display area (112) of the cover glass (110) and the display area (111) from the upper end of the display area (111) A step of irradiating light to the side surfaces of the panel 100 and the cover glass 110 .

First, before the resin curing method according to the present invention is carried out, the upper substrate 103 and the lower substrate 102 are bonded together to manufacture the panel 100. [ The panel 100 includes the lower substrate 102, the upper substrate 103, the lower polarizing film 101, and the upper polarizing film 104, as shown in FIG.

A resin 600 is applied to the lower surface of the cover glass 110 and the panel 100 and the cover glass 110 are bonded together by the resin 600.

Next, the panel 100, to which the cover glass 110 is adhered by the resin 600, is adsorbed to the adsorbing part 300 on which the adsorbing device is mounted.

Next, referring to FIGS. 3 and 5, the resin 600 is cured by irradiating light onto a plane of the panel 100 using the curing unit 400. This process is called main curing process.

In particular, the curing unit 400 can scan the entire plane of the panel 100 while moving in the K direction shown in FIG. For example, the controller 500 moves the curing unit 400 in a direction (K direction) parallel to the plane of the cover glass 110, so that the curing unit 400 moves the cover glass 110, It is possible to scan the whole of the plane of FIG.

However, the control unit 500 may move the suction unit 300 in the K direction so that the curing unit 400 scans the entire plane of the cover glass 110. 5 shows that the curing unit 400 irradiates light only to the display area 111. However, as described above, the curing unit 400 does not cover the display area 111 of the cover glass 110 111 and the non-display area 112, the resin 600 can be cured.

In this case, light is output from the curing unit 400, for example, ultraviolet rays, and the resin 600 is cured by the ultraviolet rays.

In the non-display area 112 of the cover glass 110, a black matrix is applied. Part of the light does not pass through the black matrix. Therefore, the resin applied to the display area 111 can be completely cured, but the resin applied to the non-display area 112 is not completely cured.

Particularly, a resin (hereinafter, simply referred to as a "boundary resin") 610 applied to an area of the non-display area 112 adjacent to the boundary 113 is completely cured It does not. Also, the boundary resin 610 is not completely cured by the side curing process described below.

4 and 6, the control unit 500 controls the angle of the curing unit 400 so that the light output from the curing unit 400 is reflected by the light emitting surface of the cover glass 110 Display region 112 and the display region 110 of the cover glass 110 from the upper end of the display region 111 in the direction of the boundary portion 113 formed between the non-display region 112 and the display region 110 of the cover glass 110.

The control unit 500 controls the curing unit 400 so that the curing unit 400 is disposed in a region of the display region 110 of the cover glass 110 adjacent to the non-display region 112 of the cover glass 110, .

The control unit 500 controls the angle of the curing unit 400 so that the light output from the curing unit 400 proceeds in the direction of the boundary 113.

When the curing unit 400 is tilted at an angle as shown in FIG. 6, the controller 500 drives the curing unit 400 to irradiate light toward the boundary 113.

Accordingly, the light passes through the boundary portion 113 and can completely cure the boundary resin 610 applied to a region of the non-display region 112 adjacent to the boundary portion 113 .

The step of curing the boundary resin 610 is referred to as a tilt curing process. 6, the boundary resin 610 formed in two different non-display areas is shown as being cured simultaneously by the curing part 400. However, the boundary resin 610, which is formed in two different non-display areas, (610) may be sequentially cured.

For example, among the non-display areas A to D shown in FIG. 2, after the boundary resin 610 applied to the first non-display area is cured, the second non- The boundary resin 610 applied to the fourth non-display area B to D may be sequentially cured.

For this, the control unit 400 may control the curing unit 400 in various directions and angles.

7, the controller 500 irradiates light on the side surfaces of the panel 110 and the non-display area of the cover glass 110 to illuminate the panel 110 and the cover glass 110. As a result, Thereby curing the resin applied to the side surface of the substrate 110.

For example, the resin applied to the lower end of the non-display area 112 of the cover glass 110 is not cured by the main curing process as shown in Fig.

Thus, the oblique hardening step as shown in FIG. 6 is performed. However, only the boundary resin 610 can be cured among the resins coated on the lower end of the non-display area 112 by the inclined curing process, and the remaining resin is not cured.

Accordingly, finally, the side curing process as shown in FIG. 7 is performed, so that the resin applied to the lower end of the non-display area 112 can be completely cured.

In the above description, it has been described that after the main hardening step, the oblique hardening step is performed, and finally, the side hardening step is performed.

However, the order of the main hardening step, the inclined hardening step and the side hardening step may be variously changed.

Table 1 below is a table comparing the curing rates of the boundary resin 610 in the panel (present invention) to which the resin curing method according to the present invention is applied and the panel (conventional) not applied, The cure rate measured as the object is described. The curing rate of ten panels is obtained by measuring the cure rate of the boundary resin 610 in the upper, lower, right, and left regions of the panel, which is non-display areas (A to D)

As shown in Table 1, when the resin curing method according to the present invention was not applied (conventionally), the curing rate of the boundary resin 610 was 78.5% on average, but when the resin curing method according to the present invention was applied (In the present invention), the curing rate of the boundary resin 610 averaged 92.3%.

Accordingly, it can be seen that the curing rate of the boundary resin 610 is improved when the resin curing method according to the present invention is executed.

It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: Panel 110: Cover glass
200: Support part 300:
400: hardening unit 500: control unit
600: Resin 610: Boundary resin

Claims (4)

A suction unit having an adsorbent capable of adsorbing a panel on which a cover glass is adhered by resin;
A curing unit for curing the resin applied to the panel; And
And a control unit for controlling the angle of the hardening unit so that light output from the hardening unit can advance in a boundary direction between the non-display area and the display area of the cover glass. The method according to claim 1,
Wherein,
Moving the hardened portion on the plane,
And the angle of the hardened portion is controlled so that light output from the hardened portion is radiated from the upper end of the display region of the cover glass in the direction of the boundary portion between the non-display region of the cover glass and the display region. Adsorbing a panel on which a cover glass is adhered by a resin to a suction portion on which an adsorber is mounted;
Moving the hardened portion along a plane of the cover glass; And
And controlling the angle of the hardened portion so that light output from the hardened portion advances in a direction of a boundary between the non-display region of the cover glass and the display region. The method of claim 3,
The step of controlling the angle of the hardened portion so that the light advances in the direction of the boundary,
Disposing the hardened portion in a region of the display region of the cover glass adjacent to the non-display region of the cover glass;
Controlling the angle of the curing unit so that light output from the curing unit proceeds from the top of the display area of the cover glass toward the boundary; And
And irradiating light in the direction of the boundary by driving the hardened portion.

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