KR20160135380A - Apparatus for Manufacturing Flexible Display Device - Google Patents
Apparatus for Manufacturing Flexible Display Device Download PDFInfo
- Publication number
- KR20160135380A KR20160135380A KR1020150068533A KR20150068533A KR20160135380A KR 20160135380 A KR20160135380 A KR 20160135380A KR 1020150068533 A KR1020150068533 A KR 1020150068533A KR 20150068533 A KR20150068533 A KR 20150068533A KR 20160135380 A KR20160135380 A KR 20160135380A
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- KR
- South Korea
- Prior art keywords
- window
- flexible display
- adhesive film
- display device
- present
- Prior art date
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The present invention relates to an apparatus for manufacturing a flexible display device, and more particularly, to a flexible display device having a cover window which is extended with curved portions on both sides of a plane portion, and which has a touch panel and a flexible display panel There is provided a method for manufacturing an apparatus, which improves a conventional method of attaching an adhesive film for bonding a touch panel and a flexible display panel provided on the inner surface of a cover window to each other, Thereby minimizing the problem of damage to the surface of the cover window or the surface of the touch panel.
Description
The present invention relates to an apparatus for manufacturing a flexible display device. More specifically, the present invention relates to a flexible touch panel, a display panel, and a BM (Black Matrix) display device having a cover window that extends with curved portions on both sides of a plane portion, There is provided an improvement in a conventional method of attaching an adhesive film for bonding a flexible touch panel and a display panel provided on the inner surface of a cover window to each other in manufacturing a flexible display device having a flexible film such as a film, The present invention relates to an apparatus for manufacturing a flexible display device that minimizes the problem of damaging the surface of a cover window or the surface of a touch panel by pressing the adhesive film while pressing the adhesive film without pressing the film directly.
The flexible display device can display images on the front and side surfaces using flexible display panels that can be bent.
Flexible displays can be applied to mobile devices such as mobile phones, ultra mobile PCs, electronic books and electronic newspapers.
The flexible display device has a cover window at the uppermost end of the stack to protect the flexible display panel. Since the cover window is formed in a two-dimensional planar structure, the cover window can be attached to the flexible display panel by the atmospheric pressure rolling attachment method or the vacuum face pressing method.
However, when a flexible display panel is attached to a cover window formed of a three-dimensional structure, the atmospheric pressure rolling method and the vacuum surface pressure bonding method may cause bubbles to adhere to each other during bonding to reduce the quality of the flexible display device.
The atmospheric pressure rolling attachment method bends the two-dimensional cover window and attaches to the flexible display panel. However, when the cover window is three-dimensional, it is difficult to three-dimensionally process the roller corresponding to the cover window, so that it is difficult to attach the three-dimensional cover window to the flexible display panel by the pressure rolling attachment method.
The vacuum surface pressing method can attach the flexible display panel in a three-dimensional shape to the three-dimensional cover window, but increases the equipment cost due to the configuration of the vacuum chamber.
In addition, when the adhesive film is adhered by the atmospheric pressure rolling attachment method or the vacuum face compression attachment method, the adhesive film may be lifted up on the three-dimensional curved surface of the cover window. That is, adhesion reliability is lowered.
The present invention relates to a flexible display device having a cover window having a curved surface portion extending on both sides of a flat surface portion and having a touch panel and a flexible display panel attached to an inner surface of a cover window, And a problem that the surface of the cover window or the surface of the touch panel is damaged by pressing the adhesive film while pressing the adhesive film without directly pressing the adhesive film by the pushing bar to attach the adhesive film for bonding the flexible display panel to each other And a manufacturing method of the flexible display device.
In order to achieve the above object, an apparatus for manufacturing a flexible display device according to the present invention is an apparatus for manufacturing a flexible display device having curved portions on both sides,
A window jig constituting the outside of the flexible display device and having a cover window extending thereon with curved portions on both sides of the plane portion;
An adhesive film for adhering the components stacked on the inner surface of the cover window for driving the flexible display device;
An adhesive sheet provided on the window jig and the adhesive film to adhere the adhesive film to the surface of the window jig or the surface of the constituent material stacked on the inner surface of the window jig; And
And a pressing bar for pressing the adhesive film so as to be adhered to the surface of the window jig or the surface of the component stacked on the inner surface of the window jig by pressing the adhesive sheet,
Wherein the pressing bar rotates so as to maintain a perpendicular angle to the tangent of the curved portion so that a pressing force perpendicular to the tangent of the curved portion is applied to the curved portion,
And a cylindrical urethane roller composed of urethane is provided at both ends of the contact portion pressing the adhesive sheet in the push bar,
Wherein the urethane roller is supported by a cylindrical backup roller made of a metal material,
And a heater capable of raising the temperature of the window jig is installed in the window jig.
BACKGROUND OF THE
Conventionally, in a conventional method of fixing a flat object on a flat upper table and bringing the adhesive film into contact with the tip, and then laminating the object by rotation and linear motion of the roller, an adhesive film is attached to the adhesive sheet positioned on the upper side, And adhering the adhesive film to the curved surface portion by pressing the adhesive sheet and laminating the adhesive film by rotation and linear motion of the push bar is a feature of the present invention
According to the manufacturing apparatus for a flexible display device according to the present invention, in manufacturing a flexible display device having a cover window having a curved surface portion on both sides of a flat surface portion and having a touch panel and a flexible display panel attached to the inner surface of the cover window , There is a remarkable effect that the adhesive film is pressed while pressing the adhesive film placed thereon without directly pressing the adhesive film so that the surface of the cover window or the surface of the touch panel hardly gets damaged.
Further, the pressing bar rotates in accordance with the curved surface shape of the curved surface portion so that the pushing bar pressing the adhesive sheet vertically pushes against the curved surface portion of the cover window, and the pressing force on the curved surface portion is not applied properly, There is a remarkable effect that the problem that air bubbles are generated due to failure is improved.
In addition, since urethane rollers are provided at both ends of the push bar, the pressure of the push bar is not uniformly applied to the cover window due to the step difference at both ends of the cover window, so that adhesion of the adhesive film is not properly performed, There is a remarkable effect in improving the problem of the above-mentioned problems.
In addition, a heating bar is provided to raise the temperature of the window jig on which the cover window is seated, thereby increasing the temperature of the window jig, thereby softening the adhesive film. In particular, There is a remarkable effect to be made.
1 is a perspective view of a window jig in an apparatus for manufacturing a flexible display device according to the present invention.
2 is a side view of a window jig in an apparatus for manufacturing a flexible display device according to the present invention.
3 is a front view of the main configuration of the apparatus for manufacturing a flexible display device according to the present invention, as seen from the front.
4 is a side view of a main configuration of an apparatus for manufacturing a flexible display device according to the present invention.
5 is a side view showing a state where the push bar is rotated so as to be perpendicular to the tangent of the curved surface portion of the window jig in the apparatus for manufacturing a flexible display device according to the present invention.
Fig. 6 is a perspective view of a flexible display device manufacturing apparatus according to the present invention in which both sides of an adhesive sheet are fixed by both fixing portions. Fig.
7 is an explanatory view showing a process of attaching a film to a window using an adhesive sheet and a push bar in an apparatus for manufacturing a flexible display device according to the present invention.
8 is an explanatory diagram showing a process of separating an adhesive sheet from a window after a film is attached to a window in an apparatus for manufacturing a flexible display device according to the present invention.
Fig. 9A is a side view of the adhesive film adhered to the cover window by the adhesive sheet according to the present invention, and Fig. 9B is a side view after the adhesive sheet according to the invention is separated from the adhesive film.
10 is a perspective view of a conventional flat push bar.
11 is a front view, a plan view, and a side view of a conventional flat push bar.
12 is an explanatory view for explaining a problem in the case of attaching a film to a window using a conventional flat push bar.
13 is a plan view of a push bar provided with urethane rollers at both ends according to the present invention, before assembly.
Fig. 14 is a plan view showing a state in which a push bar provided with urethane rollers at both ends thereof according to the present invention is assembled.
15 is a perspective view illustrating a structure in which a heating bar and a temperature sensor are installed in a window jig in an apparatus for manufacturing a flexible display device according to the present invention.
1 is a perspective view of a window jig in an apparatus for manufacturing a flexible display device according to the present invention.
Referring to Fig. 1, a
In the
2 is a side view of a window jig in an apparatus for manufacturing a flexible display device according to the present invention.
Referring to FIG. 2, the
The configuration of the
On the
3 is a front view of the main configuration of the apparatus for manufacturing a flexible display device according to the present invention, as seen from the front. 4 is a side view of a main configuration of an apparatus for manufacturing a flexible display device according to the present invention. 5 is a side view showing a state where the push bar is rotated so as to be perpendicular to the tangent of the curved surface portion of the window jig in the apparatus for manufacturing a flexible display device according to the present invention.
3 and 4, the main configuration of the flexible display device manufacturing apparatus according to the present invention is such that a
When the push bar fastener 8 according to the present invention is rotated, the
The
Below the
4, in order to attach the
Referring to FIG. 5, it can be seen that the
The
The
The adhesive film (3) according to the present invention is configured to press a cylinder (not shown) connected to the push bar (9).
The central axis of the
According to the present invention, the shape of the contact surface where the
6 is a perspective view showing a state in which both sides of an adhesive sheet are fixed by both fixing blocks in an apparatus for manufacturing a flexible display device according to the present invention.
Referring to Fig. 6, the
Further, the one fixing
As a preferred embodiment of the pressure
7 is an explanatory view showing a process of attaching a film to a window using an adhesive sheet and a push bar in an apparatus for manufacturing a flexible display device according to the present invention.
7, when the
When the
In the case of the pressure
In the process of attaching the
When the
On the other hand, the
That is, when the
8 is an explanatory view showing a process of separating an adhesive sheet from a cover window after attaching an adhesive film to a cover window in an apparatus for manufacturing a flexible display device according to the present invention.
8, after the operation of adhering the
Fig. 9A is a side view of the adhesive film adhered to the cover window by the adhesive sheet according to the present invention, and Fig. 9B is a side view after the adhesive sheet according to the invention is separated from the adhesive film.
Referring to FIG. 9A, when the
Referring to FIG. 9B, when the
10 is a perspective view of a conventional flat push bar. 11 is a front view, a plan view, and a side view of a conventional flat push bar.
10 to 11, the conventional pressing
12 is an explanatory view for explaining a problem in the case of attaching a film to a window using a conventional flat push bar.
12 (a) is a front view of the
12, when the
13 is a plan view of a push bar provided with urethane rollers at both ends according to the present invention, before assembly. Fig. 14 is a plan view showing a state in which a push bar provided with urethane rollers at both ends thereof according to the present invention is assembled.
13 to 14, the
According to the pushing
The
The reason why the
In addition, it is difficult to match the concentric circle when machining the urethane due to the machining error, so that it is preferable that the back-up
15 is a perspective view illustrating a structure in which a heating bar and a temperature sensor are installed in a window jig in an apparatus for manufacturing a flexible display device according to the present invention.
15, when the
The heating
The
When the
In this case, the heating temperature applied to the
In the
A conventional cartridge heater is used in a place where a die is drilled and a heater is inserted to raise the temperature of a mold. A heat coil wound precisely on a ceramic core is carefully selected for a high-temperature special heat wire, It is a heater that is tightly packed with high purity MgO, which has good heat conduction and high temperature insulation resistance characteristics. In addition, the insulation is good, there is no risk of leakage and electric shock, and the heat generating part can be small and high heat, and the power line part can be processed in various forms. Because it is a special structure heater, it can be used for a long time under the bad condition.
In the future, a curved surface display that is curved at a certain curvature instead of a conventional flat screen is being developed. Such a curved surface display can be used not only in mobile communication terminals, monitors, TV electronic products, but also in outdoor lighting of buildings and the like.
Therefore, according to the apparatus for manufacturing a flexible display device according to the present invention, a curved display having higher quality can be produced.
The apparatus for manufacturing a flexible display device according to the present invention can be applied not only to a touch panel but also to all products to which a flexible film such as a flexible display panel and a BM film is attached.
While the preferred embodiments of the present invention have been described above using specific terms, such description is for illustrative purposes only and that various changes and modifications may be made without departing from the spirit and scope of the following claims. Day. Such modified embodiments are not to be understood individually from the spirit and scope of the present invention, but are to be regarded as falling within the scope of the appended claims.
1: window jig 2: cover window
3: Adhesive film 5: Motor
8: Presser bar 9: Presser bar
10: Belt
18, 19: curved surface portion 22: pressure sensitive adhesive sheet
12, 29: fixed block 24: heating rod
25: temperature sensor 26:
33, 39: cylinder
34: Urethane roller
38: Backup Roller (steel metal material)
40: cover 42: bearing
Claims (5)
A window jig constituting the outside of the flexible display device and having a cover window extending thereon with curved portions on both sides of the plane portion;
An adhesive film for adhering the components stacked on the inner surface of the cover window for driving the flexible display device;
An adhesive sheet provided on the window jig and the adhesive film to adhere the adhesive film to the surface of the window jig or the surface of the constituent material stacked on the inner surface of the window jig; And
And a pressing bar for pressing the adhesive film so as to be adhered to the surface of the window jig or the surface of the component stacked on the inner surface of the window jig by pressing the adhesive sheet.
Wherein the push bar is rotated so as to maintain a right angle with a tangent of the curved portion so that a pressing force perpendicular to the curved portion of the curved portion is applied to the curved portion.
Wherein a cylindrical urethane roller composed of urethane is provided at both ends of a contact portion for pressing the pressure sensitive adhesive sheet on the push bar.
Wherein the urethane roller is supported by a cylindrical backup roller made of a metal material.
Wherein a heater capable of raising the temperature of the window jig is installed inside the window jig.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150068533A KR20160135380A (en) | 2015-05-17 | 2015-05-17 | Apparatus for Manufacturing Flexible Display Device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150068533A KR20160135380A (en) | 2015-05-17 | 2015-05-17 | Apparatus for Manufacturing Flexible Display Device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20160135380A true KR20160135380A (en) | 2016-11-28 |
Family
ID=57706649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020150068533A KR20160135380A (en) | 2015-05-17 | 2015-05-17 | Apparatus for Manufacturing Flexible Display Device |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20160135380A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20170133200A (en) * | 2016-05-25 | 2017-12-05 | 삼성전자주식회사 | Electronic device having display with bended area and manufacturing method thereof |
| KR102111123B1 (en) | 2019-01-09 | 2020-05-15 | ㈜ 엘에이티 | Laminator for Curved Cover Glass used Air Tube |
-
2015
- 2015-05-17 KR KR1020150068533A patent/KR20160135380A/en not_active Application Discontinuation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20170133200A (en) * | 2016-05-25 | 2017-12-05 | 삼성전자주식회사 | Electronic device having display with bended area and manufacturing method thereof |
| KR102111123B1 (en) | 2019-01-09 | 2020-05-15 | ㈜ 엘에이티 | Laminator for Curved Cover Glass used Air Tube |
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