KR101471705B1 - Method and system for manufacturing display panel - Google Patents

Abstract

The electro-optical panel and the substrate are bonded with a uniform gap in a completely inorganic state.
First, in the vacuum atmosphere, the opposing faces 1a and 2a of the electro-optical panel 1 and the substrate 2 are superimposed in the Z direction by sandwiching the liquid adhesive 3 therebetween, (1a, 2a). Subsequently, by locally stretching the liquid adhesive 3 between the electro-optical panel 1 and the substrate 2, the local vacuum in the liquid adhesive 3 is lost, so that the liquid adhesive 3 is in a substantially stationary state The layer thickness of the liquid adhesive 3 becomes substantially uniform in the Z direction on the entire opposing surfaces 1a and 2a of the electro-optical panel 1 and the substrate 2, and no further gap adjustment is required . Thereafter, when either one of the electro-optical panel 1 and the substrate 2 is moved in the X and Y directions relative to the other side in the atmosphere to align them, the electric power put on the liquid adhesive 3 having a substantially uniform layer thickness It is only required to smoothly slide either the optical panel 1 or the substrate 2 along the interface of the liquid adhesive 3 and the liquid adhesive 3 does not deform due to no pressure, There is no work.

Description

TECHNICAL FIELD [0001] The present invention relates to a method of manufacturing a display panel,

The present invention relates to an additional functional substrate bonding method in which a substrate having an additional function is bonded to an electro-optical panel including a FPD (Flat Panel Display) or the like such as a touch panel, a 3D (3D) Type display panel and a manufacturing system used for carrying out the method.

More particularly, the present invention relates to an electro-optical panel and a manufacturing method of the display panel and a manufacturing system of the display panel, wherein the substrate has a light-transmitting property and projects the light emitted from the electro-optical panel to the viewer side with a liquid adhesive.

Conventionally, as a manufacturing method of this type of display panel, a substrate (cover glass) partially coated with an electro-optical panel (liquid crystal panel) and an ultraviolet ray-curable adhesive is pressed against each other in a vacuum state in a vacuum atmosphere, Then, the electro-optical panel is vacuum-adsorbed on a table of a UV curing apparatus, and the substrate is vacuum-adsorbed onto a pressure plate. Subsequently, the entire pressure plate is pressed to the table side by a pressing member, Optical panel and the substrate are pressed in a direction in which the electro-optical panel and the substrate come close to each other, and the periphery of the electro-optical panel and the substrate is pressed with a stronger force than the central portion, and the relative position of the table and the pressure plate The alignment of the electro-optical panel and the substrate is adjusted, and thereafter the adhesion process is performed. Finally, A manufacturing method (the attaching process) by the electro-optical device to which the electro-optical panel substrate and the adhesive (for example, see Patent Document 1).

Japanese Patent Application Laid-Open No. 2009-230039

In the conventional manufacturing method of the display panel, the electro-optical panel and the substrate are vacuum-adhered to the table and the pressure plate of the UV curing apparatus, respectively, and are pressed together in the direction of approaching each other. The supporting of the electro-optical panel and the substrate can not be reliably performed unless the electro-optical panel and the substrate are standing by.

As a result, the electrooptic panel and the substrate are pressed in the direction of approaching each other in the atmosphere, whereby the adhesive is pressed and spread in the thickness direction while flowing along the opposite surfaces of the liquid crystal panel and the substrate.

However, the deformation flow of the adhesive in the atmosphere is inevitable because air can not easily be entrained in the deformation flow process, and since it can not be bonded with a perfect inorganic cloth, defective products tend to be generated and the yield is poor.

In other words, if the adhesive flows in a state in which there is no gap between the adhesive and the substrate during the deformation of the adhesive, for example, air is not mixed into the adhesive. However, if the substrate is slightly inclined with respect to the surface of the electro- There has been a problem in that an inflow of foreign matter occurs. In the case of using a pressure plate in the atmosphere, there is a precision of a shaft mechanism for supporting the pressure plate, distortion of the pressure plate, and the like, and they are transferred to the substrate.

In the case where the substrate is printed on the adhesive surface such as a cover glass of a touch panel, for example, there is a problem that the air flows in more easily because a slight irregularity is generated between the printed portion and the non- .

Even when the peripheral portion of the electro-optical panel and the substrate is pressed by a spring with a stronger force than the central portion, inflow of air accompanying the deformation flow of the adhesive in the air can not be reduced and the gap between the electro- There was no number.

Particularly, when the substrate size becomes large, it has been difficult to obtain reliability in the pressure method.

In addition, since the electro-optical panel and the substrate are overlapped one by one and aligned, there is a problem that the productivity is inferior.

SUMMARY OF THE INVENTION It is an object of the present invention to overcome such a problem and to provide a method of bonding an electrooptical panel and a substrate in a completely inorganic state with a uniform gap.

In order to achieve the above-mentioned object, a manufacturing method of a display panel according to the present invention is a manufacturing method of a display panel which has a light-transmitting property and a substrate on which a light emitted from the electro- Optical panel and the substrate in a Z-direction so as to sandwich the liquid-based adhesive therebetween in a vacuum atmosphere; and a step of bonding the electro-optical panel and the substrate A leveling step of naturally stretching the liquid adhesive along the opposed surface for a predetermined period of time to make the thickness of the liquid adhesive to be substantially uniform in the Z direction over the entire opposing surfaces of the electro-optical panel and the substrate; And then either the electro-optical panel or the substrate is exposed to the other side And a curing step of curing the liquid adhesive disposed between the opposing surfaces of the electro-optical panel and the substrate aligned in the inorganic film aligning step .

The manufacturing system of the display panel according to the present invention is an apparatus for manufacturing a display panel which comprises an electro-optical panel and a liquid-gluing agent for projecting light emitted from the electro- Optical panel and the substrate in the vacuum chamber so as to overlap each other in the Z direction so as to sandwich the liquid adhesive therebetween; Optical system, comprising: a transfer unit detachably supporting a substrate and transferring the substrate from the vacuum chamber to the atmosphere; and a transfer unit which is provided in the air and transfers either the electro-optical panel or the substrate transferred by the transfer unit to the other An inorganic encapsulating unit for moving and aligning the inorganic encapsulation unit, And a curing unit for curing the liquid adhesive which is disposed between the electro-optical panel and the opposing surface of the substrate, wherein the electro-optical panel is danced, and the curing unit for curing the liquid adhesive is disposed between the electro- The liquid adhesive is naturally stretched along the opposing surfaces of the electro-optical panel and the substrate during a predetermined period of time until the substrate is transported and set by the alignment unit, and the layer thickness of the liquid adhesive is substantially uniform in the Z- And the like.

In the method of manufacturing a display panel according to the present invention having the above-described characteristics, in the laminating step, the opposing faces of the electro-optical panel and the substrate are superimposed in the Z direction with a liquid adhesive interposed therebetween in a vacuum atmosphere, Is forcibly stretched along the opposite surface. Subsequently, in the leveling process, by locally stretching the liquid adhesive between the electro-optical panel and the substrate, the local vacuum in the liquid adhesive disappears, so that the liquid adhesive becomes approximately stationary and stabilized, Becomes substantially uniform in the Z direction over the entire opposing surface of the substrate, and no further gap adjustment becomes necessary. In the subsequent inorganic sealing process, when the electro-optical panel and the substrate are aligned with each other in the XY &thetas; direction and aligned in the air, the electro-optical panel or the electro- It is only necessary to smoothly slide one of the substrates along the interface of the liquid adhesive, and since the liquid adhesive does not pressurize, the liquid adhesive does not deform so that the air is not curled.

Thus, the electro-optical panel and the substrate can be bonded with a uniform gap in a complete inorganic state.

As a result, the performance of the inorganic foil can be improved even when the size of the electro-optical panel is increased, compared with the conventional manufacturing method in which the vacuum-adsorbed electro-optical panel and the substrate are pressed together in the direction of approaching each other in the atmosphere The yield is greatly improved.

In the manufacturing system of a display panel according to the present invention having the above-described characteristics, first, the liquid-impervious faces of the electro-optical panel and the substrate are superimposed in the Z direction by sandwiching the electro- Is forcibly stretched along the opposite surface. Next, the liquid adhesive is naturally stretched between the electro-optical panel and the substrate during a predetermined time until the electro-optical panel and the substrate, which have been superimposed from the inside of the vacuum chamber by the transport unit, are transported and set in the atmospheric inorganic particle aligning unit, The localized vacuum in the liquid adhesive disappears, so that the liquid adhesive becomes substantially stationary, and the layer thickness of the liquid adhesive becomes substantially uniform in the Z direction over the entire opposing surfaces of the electro-optical panel and the substrate, The state becomes absent. Thereafter, when the inorganic encapsulation unit moves and aligns the electrooptic panel and the substrate in the air in the XY &thetas; direction with respect to the other, the electrooptical panel and the substrate, which are placed on the liquid adhesive having a substantially uniform layer thickness, Or the substrate can be smoothly slid along the interface of the liquid adhesive, and since the liquid adhesive does not pressurize, the liquid adhesive does not deform and does not cause the air to curl up.

Thus, the electro-optical panel and the substrate can be bonded with a uniform gap in a complete inorganic state.

As a result, the performance of the inorganic foil can be improved even when the size of the electro-optical panel is increased as compared with the conventional manufacturing system in which the vacuum-adsorbed electro-optical panel and the substrate are pressed together in the direction approaching each other in the atmosphere The yield is greatly improved.

1 is a block diagram showing a manufacturing system of a display panel according to an embodiment of the present invention.
Fig. 2 is a longitudinal end elevational view of the cementing unit, in which (a) shows a state before superimposition, and (b) shows a state after superimposition.
Fig. 3 is a longitudinal front view of the inorganic wrapping unit, and Fig. 3 (a) is a plan view and Fig. 3 (b) is a partially cutaway front view.
4 is a flowchart showing a manufacturing method of a display panel according to an embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

As shown in Figs. 1 to 3, the manufacturing system of the display panel A according to the embodiment of the present invention is configured so that the electro-optical panel 1 and the substrate 2 are overlapped in the Z direction so as to sandwich the liquid adhesive 3 therebetween A transfer unit 20 for transferring the stacked electro-optical panel 1 and the substrate 2 to the atmosphere, a transfer unit 20 for transferring the electro-optical panel 1 and the substrate 2 in the XY & A curing unit 40 for curing the liquid adhesive 3 disposed between the electro-optical panel 1 and the substrate 2, the adhesion unit 10, the transfer unit 20 ), The inorganic filler aligning unit 30, the hardening unit 40, and the like, as the main components.

The electro-optical panel 1 has an electro-optical material layer and a means for applying a voltage thereto, and it is possible to change the state of the electro-optical material layer by applying a voltage based on an electric signal to extract desired light.

Examples of the electro-optical panel 1 include a liquid crystal display (LCD), an organic EL display (OLED), a plasma display (PDP), a flexible display, etc. used for a touch panel, a 3D A flat panel display (FPD), and the like.

It is preferable that the electro-optical panel 1 is formed in a rectangular shape or the like, and an alignment mark (not shown) used for alignment with the substrate 2, which will be described later, is formed on the periphery thereof.

As the electro-optical panel 1, it is also possible to use one sheet before separation in which a plurality of electro-optical panels 1 are juxtaposed.

The substrate 2 is made of a material having translucency such as glass, quartz, or plastic. The substrate 2 transmits light emitted from the electro-optical panel 1 and emits the light to the Z direction side (view side) And has functions according to the purpose of the user.

As a specific example of the substrate 2, a cover glass or a barrier glass used for a touch panel, a 3D (3D) display, an electronic book, or the like can be enumerated. For example, when used as a touch panel, And is printed on the surface in the plane.

The size or planar shape of the substrate 2 is formed in a rectangular shape approximately equal to that of the electro-optical panel 1, and an alignment mark (not shown) used for alignment with the electro-optical panel 1 is formed on the periphery thereof .

As the substrate 2, it is also possible to use one sheet before separation in which a plurality of substrates 2 are juxtaposed.

The liquid adhesive 3 includes an adhesive, a thermosetting adhesive, a two-component mixed curing adhesive, etc. having a photo-curability that cures by the progress of polymerization by absorbing light energy and exhibits adhesiveness, and has a degree of polymerization (degree of curing) Has a fluidity in a low state, and is structured such that fluidity is lowered as the degree of polymerization (degree of curing) is increased, so that it is less likely to be deformed.

The liquid adhesive 3 is partially applied to the opposing surfaces (surfaces) 1a and 2a of the electro-optical panel 1 and the substrate 2, and is applied to the electro-optical panel The liquid adhesive 3 is stretched along the opposed surfaces 1a and 2a and the opposed surfaces 1a and 2a are finally stretched by overlapping the opposed surfaces 1a and 2a of the substrate 1 and the opposed surfaces 1a and 2a of the substrate 2. [ Of the total.

As a specific example of the liquid adhesive 3, an ultraviolet curable adhesive or the like is used.

As a coating method of the liquid adhesive 3, a coating method (not shown) including a liquid dispensing machine such as a dispenser is used to draw on the opposing surfaces 1a and 2a in a point shape or a line shape, The liquid adhesive 3 in the form of a dot or line is elongated by overlapping the opposing faces 1a and 2a of the electrooptic panel 1 and the substrate 2 by the cementing unit 10 to be described later, It is preferable that the interfaces are disposed so as to be in contact with each other and connected to each other.

The cementing unit 10 includes a vacuum chamber 11 in which all or a part of the cementing unit 10 is openably and closably opened and closed by the operation of the opening and closing drive unit 11a and a vacuum chamber 11 in the Z direction optical panel 1 and the substrate 2 so as to detachably support the electro-optical panel 1 and the substrate 2, and a pair of supporting plates 12 and 13, Optical panel 1 and the substrate 2 by moving one or both of them in the Z direction to each other.

The pair of support plates 12 and 13 are formed in a flat plate shape having a thickness such that they are not deformed by a rigid body such as metal or ceramics and are supported by supporting surfaces 12a and 13a, As a support means (not shown) for detachably supporting the optical panel 1 or the substrate 2, for example, an adhesive chuck, a combination of an electrostatic chuck and a suction chuck, Either or both of the surfaces 12a and 13a are supported so as to reciprocate so as to approach each other or to be spaced apart in a state in which they are parallel to each other in the Z direction.

In the example shown in Figs. 2A and 2B, the electro-optical panel 1 is supported on the support surface 12a of the support plate 12 disposed at the lower side, and the support surface 13a of the support plate 13, The substrate 2 is supported on the lower support plate 13a and only the upper support plate 13 is moved up and down by the elevation drive unit 14 with respect to the lower support plate 12. [

Although not shown as another example, it is also possible to support the substrate 2 on the lower support plate 12 and support the electro-optical panel 1 on the upper support plate 13 or on the upper support plate 13 It is also possible that only the lower support plate 12 is lifted or lowered by the lifting and lowering drive unit 14 or both the lower support plate 12 and the upper support plate 13 are lifted and lowered by the lifting and lowering drive unit 14. [

A closed space S capable of adjusting the atmospheric pressure is formed around the support plates 12 and 13 in the vacuum chamber 11 and an atmosphere of an atmosphere in which the closed space S is vacuum- It is preferable that the electro-optical panel 1 and the substrate 2 are overlapped by moving the support surfaces 12a and 13a to approach each other.

The transfer unit 20 is a transfer robot or the like having a suction pad or the like as a means for detachably supporting the electro-optical panel 1 and the substrate 2 and at least a vacuum chamber 11 of the bonding unit 10, Optical panel 1 and the substrate 2 which are stacked by the attaching unit 10 and are capable of reciprocating across the inorganic encapsulating unit 30 to be described later and the inorganic encapsulating unit 30 We move.

As a specific example of the transfer unit 20, there is a case where the transfer unit 20 is operated in cooperation with an elevatable lift pin (not shown) provided on the support plates 12 and 13 of the bonding unit 10, Optical panel 1 and the substrate 2 are taken out from the support surfaces 12a and 13a and taken out to the outside atmosphere in the vacuum chamber 11 and superimposed on the electrooptical panel 1 and the substrate 2 To be described later, and is set at a predetermined position on the support chuck 31. In this state,

The electroconductive panel 1 and the substrate 2 can be separated from the outer region where the application means including the liquid constant quantity dispenser such as a dispenser is disposed by the conveying unit 20 as needed, After the inorganic encapsulating process by the inorganic encapsulating unit 30 and the curing process of the liquid adhesive 3 by the curing unit 40 described later are completed Optical panel 1 and the substrate 2 from the inorganic encapsulation unit 30, as shown in Fig.

In order to facilitate the natural extension of the liquid adhesive 3 sandwiched between the opposing surfaces 1a and 2a of the electro-optical panel 1 and the substrate 2 being conveyed, Optical apparatus 1 may be provided with a means for imparting appropriate vibration including micro-oscillation or buffer means for maintaining the retention of the electro-optical panel 1 and the substrate 2 during conveyance for a predetermined period of time and inputting and outputting them.

The inorganic encapsulation unit 30 includes a pair of support chucks 31 and 32 which are disposed in the air and detachably support the electrooptic panel 1 and the substrate 2 carried by the transport unit 20, Optical panel 1 and the substrate 2 by moving either one of the support chucks 31 and 32 to the other in the XY? Direction (in the example shown in Fig. 3 (a) And a position detecting section 34 for detecting an alignment mark or the like disposed on the periphery of the electro-optical panel 1 and the substrate 2. The position detecting section 34 detects the alignment mark,

The pair of support chucks 31 and 32 are formed in a flat plate shape having a thickness that is not deformed by a rigid body such as metal or ceramics and are supported by supporting surfaces 31a and 32a, A suction chuck, an electrostatic chuck, a pressure-sensitive adhesive chuck, a friction chuck or a combination thereof is formed as a supporting means (not shown) for detachably supporting the optical panel 1 or the substrate 2, Either one of the support surfaces 12a and 13a is supported so as to be movable in the XY &thetas; direction while maintaining a parallel state with respect to the burr side with respect to the vacuum chamber 11 of each of the vacuum chambers 31a and 32a.

In the example shown in Figs. 3A and 3B, a camera is provided as the position detection unit 34 on the periphery of the support chuck 32 above which the substrate 2 is supported. The lower support chuck 31 supporting the electro-optical panel 1 is movably supported on the upper support chuck 32 on which the substrate 2 is supported so as to be movable in the XY &thetas; direction.

Although not shown as another example, the upper support chuck 32, on which the substrate 2 is supported, can be moved relative to the lower support chuck 31, on which the electro-optical panel 1 is supported, It is also possible to support.

The curing unit 40 irradiates the light energy to increase the degree of polymerization (degree of curing) of the liquid adhesive 3 so that the curing unit 40 immediately after the alignment of the electrooptic panel 1 and the substrate 2 by the inorganic encapsulating unit 30 The degree of polymerization (degree of curing) of the liquid adhesive 3 is increased.

As a specific example of the curing unit 40, when the liquid adhesive 3 is an ultraviolet curable adhesive or the like, there is a UV irradiating unit for irradiating ultraviolet rays. This is a case in which the electro-optical panel 1 and the opposing surface 2a, 2b, 2c, 2d, 2c, 2d, 2d, 2d, 2d, 2d, 2d,

3 (a) and 3 (b), a UV irradiation head is disposed as a curing unit 40 on the periphery of the upper support chuck 32 on which the substrate 2 is supported, and the electro- The liquid adhesive 3 is partially cured at the periphery of the liquid adhesive 3 extending between the opposite surfaces 1a and 2a of the substrate 2 and the opposite surfaces 1a and 2a of the substrate 2, Optic panel 1 and the substrate 2 are carried out from the unit 30 to perform the final curing.

In addition, although not shown as another example, it is possible to use a thermosetting adhesive, a two-liquid mixture curing adhesive or the like instead of the ultraviolet curable adhesive, or to completely cure the entire liquid adhesive (3).

The control unit 50 controls the opening and closing drive unit 11a of the vacuum chamber 11 in the attaching unit 10 and the horizontal driving unit (not shown) in the lifting and driving unit 14, the transfer unit 20, 33, the position detecting unit 34, the hardening unit 40, and the like, and controls them to be operated sequentially in accordance with a preset program.

Particularly, the control unit 50 adjusts the operating speed of the conveyance unit 20 so that when the overlapping of the electro-optical panel 1 and the substrate 2 in the vacuum chamber 11 is completed by the coincidence unit 10 It is possible to arbitrarily set the time until the alignment of the electro-optical panel 1 with the substrate 2 by the inorganic encapsulating unit 30 is started.

More specifically, in response to the natural stretching of the liquid adhesive 3 starting from the time when the superposition of the electro-optical panel 1 and the substrate 2 is completed, the time to start alignment by the inorganic encapsulating unit 30 So that it can be arbitrarily set.

That is, the liquid adhesive 3 partially applied to the electro-optical panel 1 and the opposing faces 1a and 2a of the substrate 2 is applied to the opposing faces 1a and 1b of the electro-optical panel 1 and the substrate 2, 2a of the liquid adhesive 3 so that the liquid adhesive 3 is almost completely stationary and stabilized because the local vacuum in the liquid adhesive 3 is lost, The alignment of the electrooptic panel 1 and the substrate 2 by the inorganic encapsulating unit 30 is started after the layer thickness of the electrostatic chuck 3 is made substantially uniform in the Z direction on the entire opposing faces 1a and 2a .

As shown in the flow chart of Fig. 4, the manufacturing method for producing the display panel A according to the embodiment of the present invention includes a laminating step for laminating the electro-optical panel 1 and the substrate 2, A leveling process for naturally stretching the adhesive 3, an inorganic encapsulating process for aligning the electro-optical panel 1 and the substrate 2, and a curing process for curing the liquid adhesive 3.

In the laminating process, the liquid adhesive 3 is applied between the opposing faces 1a and 2a of the electro-optical panel 1 and the substrate 2, in a vacuum atmosphere in the vacuum chamber 11, Overlap in the Z direction so as to be fitted.

The leveling process is a process for removing the electrooptical panel 1 and the substrate 2 which have been superimposed from the inside of the vacuum chamber 11 by the transport unit 20 or the like and taking a predetermined time until the substrate 2 is set in the inorganic encapsulating unit 30 The liquid adhesive 3 is naturally stretched along the opposed surfaces 1a and 2a of the electro-optical panel 1 and the substrate 2 superimposed in the laminating process for a predetermined period of time to form a roughly flat shape of the opposed surfaces 1a and 2a And the layer thickness of the liquid adhesive 3 is made substantially uniform in the Z direction on the entire opposing surfaces 1a and 2a of the electro-optical panel 1 and the substrate 2. [

After the leveling process, either one of the electrooptic panel 1 or the substrate 2 is moved in the XY &thetas; direction relative to the other side by the inorganic encapsulating unit 30 and aligned.

The curing process of the liquid adhesive 3 is performed by placing the liquid adhesive 3 disposed between the opposing faces 1a and 2a of the electro-optical panel 1 and the substrate 2 aligned in the inorganic foam aligning step, To cure some or all of them.

According to the manufacturing system and the manufacturing method of the display panel (A) according to the embodiment of the present invention, in the laminating step, the electrostatic optical panel 1 and the substrate 2 Are superimposed in the Z direction with the liquid adhesive 3 interposed therebetween.

Thereby, the liquid adhesive 3 is forcibly stretched along the opposed surfaces 1a and 2a, and the liquid adhesive 3 is filled in most of the opposed surfaces 1a and 2a.

In the subsequent leveling process, when the transport unit 20 transports the electro-optical panel 1 and the substrate 2, which have been superimposed from the inside of the vacuum chamber 11, to the inorganic encapsulating unit 30 in the atmosphere and set The liquid adhesive 3 is naturally stretched between the electro-optical panel 1 and the substrate 2 during a predetermined period of time from when the electro-optical panel 1 is attached to the substrate 2 to the liquid-

As a result, the local vacuum in the liquid adhesive 3 is lost and the liquid adhesive 3 becomes substantially stationary and stable, and the layer thickness of the liquid adhesive 3 is lowered to the area of the electro- The liquid adhesive 3 applied in the Z direction is substantially uniform in conformity with the volume of the liquid adhesive 3 on all the opposed surfaces 1a and 2a of the liquid crystal display panel 1. As a result, the opposing faces 1a and 2a of the electro-optical panel 1 and the substrate 2 become parallel to each other, and no further gap adjustment is required.

In the subsequent inorganic sealing process, either one of the electro-optical panel 1 and the substrate 2 moves in the X and Y directions with respect to the other in the atmosphere by the inorganic encapsulating unit 3 and is aligned.

This makes it possible to smoothly slide either the electrooptic panel 1 or the substrate 2 placed on the liquid adhesive 3 having a substantially uniform layer thickness along the interface of the liquid adhesive 3, The liquid adhesive 3 does not deform so that the air does not curl up.

Particularly, even if the substrate 2 is printed on the adhesive surface with a pattern such as a shape or a symbol, such as a cover glass of a touch panel, and a slight irregularity is formed between the printed portion and the non-printed portion, The liquid 3 adheres smoothly as the liquid action of the liquid adhesive 3 itself because the liquid 3 adheres to the interface between the solid and the liquid.

Thus, the electro-optical panel 1 and the substrate 2 can be bonded with a uniform gap with a complete inorganic state.

Next, an embodiment of the present invention will be described with reference to the drawings.

Example

In this embodiment, as shown in Figs. 2 and 3, a plurality of sets of the electro-optical panel 1 and the substrate 2 are arranged in the vacuum chamber 11 ), And these are transported by the transport unit 20, and a plurality of stacked electro-optical panels 1 and the substrate 2 are aligned in order.

That is, the cohesive unit 10 supports the electro-optical panel 1 and the substrate 2 so that a plurality of sets of the electro-optical panel 1 and the substrate 2 are opposed to each other by the support plates 12 and 13 in the vacuum chamber 11, The transport unit 20 transports a plurality of sets of the electrooptic panel 1 and the substrate 2 stacked by the attaching unit 10 from the inside of the vacuum chamber 11 to the inorganic encapsulating unit 30, The inorganic embroidery aligning unit 30 removably supports a plurality of sets of the electro-optical panel 1 and the substrate 2 carried by the transfer unit 20 and aligns them in order.

2 (a) and 2 (b), the vacuum chamber 11 of the attaching unit 10 is configured so as to be capable of being divided in the Z direction as a whole, and the closed space S formed therein is divided into a predetermined vacuum degree Optic panel 1 and the substrate 2 are overlapped with each other, and then the closed space S is opened to the atmosphere.

Although not shown as another example, the vacuum chamber 11 is not separable, and an opening is provided in a part of the side wall. The door is openably and closably covered to cover the door, and the opening and closing drive unit 11a Optical panel 1 and the substrate 2 can be moved in and out by the transport unit 20 when the door is opened and closed by the operation of the transport unit 20.

In the illustrated example, a plurality of electro-optical panels 1 are supported on a lower support plate 12 by a plurality of electro-optical panels 1, A plurality of substrates 2 separated from each other with the optical panel 1 are supported on the upper support plate 13.

Although not shown as another example, in contrast to the example shown in the figures, a plurality of substrates 2 are supported by a plurality of substrates 2 before being separated, And the plurality of electro-optical panels 1, which are separated from each other, can be supported.

3 (a) and 3 (b), the upper support chuck 32, on which the substrate 2 is supported, is connected to the lower support chuck 31, on which the electro-optical panel 1 is supported, The optical panel 1 and the respective substrates 2 are supported so as to be movable by the horizontal drive unit 33 in the XY &thetas; directions (vertical and horizontal directions and oblique directions in the example shown in Fig.

Although not shown as another example, it is also possible for the support chuck 31 below to support the upper support chuck 32 movably in the XY &thetas; direction by the horizontal drive unit 33, as opposed to the example shown in the drawing Do.

According to the manufacturing system and the manufacturing method of the display panel A according to the embodiment of the present invention, only a plurality of sets of the electro-optical panel 1 and the respective substrates 2 are set once to the cementing unit 10 , The overlapping and the positioning are performed.

Thus, there is an advantage that a plurality of sets of the electro-optical panel 1 and the substrate 2 can be efficiently combined.

As a result, the productivity of the display panel A can be improved, and the cost can be reduced, as compared with the conventional manufacturing system and manufacturing method in which the electro-optical panel and the substrate are superposed and aligned by a pair.

In the above-described embodiment, the cementing unit 10 and the inorganic filler aligning unit 30 are separately disposed and conveyed by the conveying unit 20 between them. However, the present invention is not limited to this and the cementing unit 10 ) And the inorganic filler aligning unit 30 may be integrally arranged and conveyed by the conveying unit 20 in the inside thereof.

1: Electro-optical panel 1a, 2a:
2: substrate 3: liquid adhesive
11: Vacuum chamber 20: Transfer unit
30: Inorganic wrap alignment unit 40: Curing unit

Claims (4)

An electro-optical panel and a method of manufacturing a display panel having a light-transmissive substrate and a substrate for projecting light emitted from the electro-optical panel onto a viewer side,
A step of overlapping the opposing surfaces of the electro-optical panel and the substrate in a vacuum atmosphere in a Z direction so that the liquid adhesive is sandwiched therebetween;
The liquid adhesive is naturally stretched along the opposing surfaces of the electro-optical panel and the substrate superimposed in a vacuum atmosphere by the laminating step for a predetermined period of time, and the layer thickness of the liquid- In the Z direction from the entire opposing face of the substrate,
Optic panel or the substrate after the leveling step is slid in the XY &thetas;
A curing step of curing the liquid adhesive disposed between the opposing surfaces of the electro-optical panel and the substrate aligned in the inorganic encapsulating process
And forming a second electrode on the second substrate. 2. The electro-optical panel according to claim 1, wherein in the laminating step, a plurality of sets of the electro-optical panel and the substrate are arranged so as to face each other,
Optical panel and the substrate are sequentially aligned in the inorganic-foam aligning step. An electro-optical panel and a display panel manufacturing system for attaching a substrate having a light-transmitting property and projecting light emitted from the electro-
A bonding unit which has a vacuum chamber, supports the electro-optical panel and the substrate in a vacuum atmosphere in the vacuum chamber, and superposes the liquid-state adhesive in the Z direction so as to sandwich the liquid-
A transport unit detachably supporting the electro-optical panel and the substrate superposed by the coalescing unit and transporting the electro-optical panel and the substrate from the vacuum atmosphere in the vacuum chamber to the atmosphere;
An inorganic encapsulating unit that is installed in the air and moves either one of the electro-optical panel or the substrate carried by the transport unit in the X and Y directions with respect to the other,
And a curing unit for curing the liquid adhesive disposed between the opposing surfaces of the electro-optical panel and the substrate aligned by the inorganic encapsulating unit
And,
The transport unit is configured to transport the electro-optical panel and the substrate stacked from the vacuum atmosphere in the vacuum chamber to the inorganic encapsulating unit in the atmosphere for a predetermined period of time until the organic electro- Wherein the liquid adhesive is naturally stretched along the opposing face of the panel and the substrate so that the layer thickness of the liquid adhesive is uniform in the Z direction over the entire opposing face. 4. The electro-optical panel according to claim 3, wherein the cementing unit supports the plurality of sets of the electro-optical panel and the substrate so that the plurality of sets of the electro-optical panel and the substrate are opposed to each other within the vacuum chamber, and,
The conveying unit conveys a plurality of sets of the electro-optical panel and the substrate superimposed by the cementing unit from the inside of the vacuum chamber to the inorganic encapsulating unit,
Wherein the inorganic encapsulation unit removably supports a plurality of the electro-optical panels carried by the transport unit and the substrate, and aligns them in order.

Images