KR101765553B1 - The method for attaching a flexible panel to the curved window glass - Google Patents

The method for attaching a flexible panel to the curved window glass Download PDF

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Publication number
KR101765553B1
KR101765553B1 KR1020150138378A KR20150138378A KR101765553B1 KR 101765553 B1 KR101765553 B1 KR 101765553B1 KR 1020150138378 A KR1020150138378 A KR 1020150138378A KR 20150138378 A KR20150138378 A KR 20150138378A KR 101765553 B1 KR101765553 B1 KR 101765553B1
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KR
South Korea
Prior art keywords
flexible panel
flexible
window glass
panel
protective film
Prior art date
Application number
KR1020150138378A
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Korean (ko)
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KR20170039787A (en
Inventor
안성룡
Original Assignee
하이텍 주식회사
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Priority to KR1020150138378A priority Critical patent/KR101765553B1/en
Publication of KR20170039787A publication Critical patent/KR20170039787A/en
Application granted granted Critical
Publication of KR101765553B1 publication Critical patent/KR101765553B1/en

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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
    • 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

Abstract

The present invention relates to a flexible display panel, a flexible display panel, a flexible display panel, and a flexible display panel. The flexible display panel includes a lower protective film, A flexible panel surface lapping method in which the same pressure is sequentially applied to all the surfaces of the curved window glass so as to have a uniform gap uniformity on the curved window glass while the bubbles are not generated in the laminating process so that they can be adhered even under atmospheric pressure A method of attaching a lower protective film 2 such that the protective film 2 is exposed to the outside of the flexible panel 1 is provided on the lower surface of the flexible panel 1 step; 2) mounting the curved window glass 3 so that the mounting surface is exposed downward; 3) gripping the portions of the lower protective film 2 exposed to the outside of the flexible panel 1 on both sides to mount the flexible panel 1 on the lower side of the curved window glass 3 ; 4) In the lower portion of the flexible panel 1, the central portion of the flexible panel 1 is convexly deformed upward, firstly in line contact with the curved window glass 3, And sequentially pressing the flexible panel (1).

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of attaching a flexible panel to a curved surface,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a flexible panel surface bonding method, and more particularly, to a flexible panel surface bonding method in which a flexible material is attached to a curved window glass by attaching a lower protective film to a lower surface of the flexible display panel, The flexible display panel is held by using a protective film and sequentially pressed from the central portion to the outer frame portion of the flexible display panel to sequentially apply the same pressure to all the surfaces of the curved window glass to uniformly cover the curved window glass The present invention relates to a method of attaching a flexible panel to a surface of a flexible panel, which does not generate bubbles during a cementing process and can be adhered even under an atmospheric pressure environment.

A flexible material that has various elastic properties such as a film and can be variously deformed is attached to a specific material and used as an integral body in many cases. Therefore, many techniques for attaching a flexible material to a specific shape material have been developed.

Particularly, in recent years, a structure in which a flexible material is cemented to a curved window glass having a shape as shown in Fig. 1 has been used, mainly in a display device including a mobile phone and a device using a touch screen parcel. In this case, there is a more difficult problem to press the curved surface of the curved window glass against the flexible material which is difficult to apply uniform pressure to all the surfaces due to the deformation of the flexible material during the attaching process.

Particularly, when the flexible panel or sheet is attached to the curved window glass, there is a high possibility that bubbles are generated in the curved surface portion, and the assembling force is also deteriorated. In order to solve this problem, when a flexible panel or sheet is attached to a curved window glass in a current state, a lacquering operation is performed in a vacuum state in order to prevent the occurrence of bubbles.

However, even if the laminating operation is carried out in the vacuum, it is not possible to prevent bubbles from occurring, and the cost of the equipment is increased and the process time is prolonged.

SUMMARY OF THE INVENTION The present invention is directed to a flexible display panel, a flexible display panel, and a flexible display panel, the flexible display panel having a lower protective film attached to the lower surface of the flexible display panel, The pressure is sequentially applied to all the surfaces of the curved window glass so as to have a uniform uniformity in the uniformity of the curved window glass while the same pressure is applied to all the surfaces of the curved window glass, And a method for attaching a flexible panel surface.

According to an aspect of the present invention, there is provided a method of attaching a flexible panel to a surface of a flexible panel, comprising the steps of: (1) forming a lower protective film (2) on a lower surface of the flexible panel to expose the protective film ); 2) mounting the curved window glass 3 so that the mounting surface is exposed downward; 3) gripping the portions of the lower protective film 2 exposed to the outside of the flexible panel 1 on both sides to mount the flexible panel 1 on the lower side of the curved window glass 3 ; 4) In the lower portion of the flexible panel 1, the central portion of the flexible panel 1 is convexly deformed upward, firstly in line contact with the curved window glass 3, And sequentially pressing the flexible panel (1).

In the present invention, the step 4) includes the steps of: a) moving the flexible panel 1 from the lower side to the upper side so that the central portion of the flexible panel 1 is in line contact with the central portion of the curved window glass 3; Pressing with the pressing member (30); b) Pressing the flexible panel (1) outwardly from the center part in the outward direction so as to enlarge the bonding area outward in a state in which the central part of the flexible panel (1) And attaching the adhesive layer to the substrate.

In the step b) of the present invention, the right and left sides of the flexible panel 1 are alternately attached to the single pressurizing roller 40 or the two pressure rollers 40 and 50 are used to press the flexible panel 1 It is preferable to attach the right and left sides at the same time.

In addition, in the step 1) of the present invention, it is preferable that the lower protective film 2 is attached to the flexible panel 1 such that the lower protective film 2 is exposed through the remaining surface except the surface on which the drive circuit unit 5 is mounted.

According to the flexible panel laminating method of the present invention, the flexible material capable of freely deforming, such as a flexible panel or sheet, is pressed against the curved window glass sequentially from the center to the outward direction to prevent the bubbles from being generated, It is possible to achieve a remarkable effect that the flexible material can be attached to the curved window glass while maintaining the uniformity of spacing by applying a uniform pressure to all portions of the curved window glass.

Particularly, any part of the flexible display panel during the cementation process has an advantage of being able to grasp the entire surface of the curved surface cementation process without being damaged or contaminated.

1 is a view showing the shape of a curved window glass.
2 and 3 are views showing a state where a lower protective film is attached to a flexible display panel.
FIGS. 4 to 7 are views showing respective steps of a flexible panel surface bonding method according to an embodiment of the present invention.

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

As shown in Figs. 2 and 3, the method of attaching the flexible panel surface according to the present embodiment starts with the step of attaching the lower protective film 2 to the lower surface of the flexible panel 1. Fig. In general, the lower protective film 2 may be a protective film used for protecting the display panel, and may have a higher tensile strength than the conventional protective film.

2, the lower protective film 2 is formed so as to be exposed to the outside of the flexible panel 1 in the remaining surface direction excluding the surface on which the driving circuit unit 5 is installed, of the flexible panel 1 Respectively.

Of course, the lower protective film 2 may not be attached as a separate process, and may be used while the lower protective film 2 attached to the product during the product wearing process is not peeled off.

Next, the step of mounting the curved window glass 3 so that the mounting surface is exposed downward is proceeded. That is, as shown in FIG. 4, the mounting surface of the window glass 3 is exposed and exposed in the direction of the flexible panel using the mounting jig 10. Of course, the protective film attached to the lower surface of the window glass 3 is peeled off.

Next, as shown in FIG. 4, a portion of the lower protective film 2, which is exposed to the outside of the flexible panel 1, is gripped on both sides so that the flexible panel 1 is folded The step of mounting the lower part of the glass 3 is proceeded. That is, a portion of the lower protective film 2 which is exposed to the outside is firmly gripped on both sides by using the gripping means 20 and is mounted on the lower side of the window glass 3. By gripping the lower protective film 2 instead of the flexible display panel, it is preferable that the display panel is fundamentally excluded from the possibility of being damaged or contaminated during the cementation process.

At this time, the protective film attached to the upper surface of the flexible panel 1 is peeled off.

5, the central portion of the flexible panel 1 is convexly deformed upward from the lower side of the flexible panel 1, and is first brought into contact with the curved window glass 3, The flexible panel 1 is sequentially pressed upward by using the central pressing member 30 so as to expand to the outside. At this time, the central pressing member 30 may have a roller shape as shown in FIG. 5, or may be made of a flexible member.

Next, as shown in Figs. 6 and 7, the flexible panel 1 is sequentially moved outward from the center portion so that the adhesive area is expanded outward in a state in which the central portion of the flexible panel 1 is in line contact The pressing step is carried out using the pressure rollers 40 and 50 while being pressed. Thus, when the pressing and attaching operations are sequentially performed from the center portion to the outside, bubbles are not generated on the mounting surface despite the curved surface mounting operation, and all surfaces can be uniformly pressed. Particularly, since the flexible panel 1 is gripped without contacting the flexible panel 1 at all, there is no possibility that the flexible panel 1 is damaged during the bonding process, and there is no need to prepare a separate member for gripping.

On the other hand, in this embodiment, as shown in Fig. 6, there are a method of attaching left and right sides alternately and a method of attaching left and right sides simultaneously as shown in Fig.

When alternately attached, the left and right sides of the flexible panel 1 with the center portion attached thereto are sequentially pressed while being moved to the outside using the pressure roller 40. [ At this time, as shown in FIG. 6A, the pressure roller 40 has a curvature larger than the curvature of the window glass 3, and it is preferable that the curved surface portion can be pressed and attached sequentially as shown in FIG. 6B Do. At this time, the gripping means 20 is also interlocked with the position of the pressure roller 40 so that the non-attaching portion of the flexible panel 1 is deformed to a larger curvature, as shown in FIG. 6B, .

When the attachment operation to the right side is completed, the pressing roller 40 is moved to the left again, and the same attaching process is repeated to complete the operation of attaching the flexible panel to the curved window.

On the other hand, as shown in Fig. 7, it is also possible to simultaneously attach the left and right sides of the flexible panel 1 by using the two pressure rollers 40 and 50. Fig. In this case, as shown in FIG. 7A, while the two pressure rollers 40 and 50 are moved in different directions, the mounting operation is performed while simultaneously pressing the left and right sides of the flexible panel 1 outwardly, (20) are simultaneously moved, the non-attaching portion of the flexible panel is first folded so as not to come into contact with the window glass (3).

Of course, after the laminating operation of the flexible panel 1 is completed, the peeling process of separating the lower protective film 2 from the flexible panel 1 can be further performed.

1: Flexible display panel 2: Lower protective film
3: Window glass
10: mounting jig 20: gripping means
30: intermediate pressing member 40: pressure roller
50: pressure roller

Claims (4)

1) attaching the lower protective film 2 to the lower surface of the flexible panel 1 so that the protective film 2 is exposed to the outside of the flexible panel 1;
2) mounting the window glass 3 on the lower surface of the mounting jig 10 so that the concave mounting surface of the curved window glass 3 is exposed downward;
3) gripping the portions of the lower protective film 2 exposed to the outside of the flexible panel 1 on both sides to mount the flexible panel 1 on the lower side of the curved window glass 3 ;
4) In the lower portion of the flexible panel 1, the central portion of the flexible panel 1 is convexly deformed upward, firstly in line contact with the curved window glass 3, And sequentially pressing the flexible panel (1)
The step (4)
a) Pressing the flexible panel 1 from the lower side to the upper side using the central pressing member 30 so that the central portion of the flexible panel 1 first contacts the central portion of the curved window glass 3 step;
b) Pressing the flexible panel (1) in the outward direction from the center portion in order to expand the bonding area outward in a state in which the central portion of the flexible panel (1) And attaching the flexible panel to the surface of the flexible panel. delete 2. The method of claim 1, wherein in step b)
The left and right sides of the flexible panel 1 are alternately attached to the flexible panel 1 by a single pressure roller 40 or the left and right sides of the flexible panel 1 are simultaneously attached by using two pressure rollers 40, Panel surface bonding method. The method according to claim 1, wherein in the step (1)
Wherein the lower protective film (2) is attached to the flexible panel (1) such that the lower protective film (2) is exposed through the remaining surface except the surface on which the drive circuit unit (5) is installed.
KR1020150138378A 2015-10-01 2015-10-01 The method for attaching a flexible panel to the curved window glass KR101765553B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150138378A KR101765553B1 (en) 2015-10-01 2015-10-01 The method for attaching a flexible panel to the curved window glass

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Application Number Priority Date Filing Date Title
KR1020150138378A KR101765553B1 (en) 2015-10-01 2015-10-01 The method for attaching a flexible panel to the curved window glass

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KR20170039787A KR20170039787A (en) 2017-04-12
KR101765553B1 true KR101765553B1 (en) 2017-08-23

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101927801B1 (en) 2018-06-27 2019-02-26 주식회사 인스풀 Apparatus for attaching curved display and method for attaching curved display

Families Citing this family (7)

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Publication number Priority date Publication date Assignee Title
US10739881B2 (en) 2018-01-31 2020-08-11 Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. Manufacturing method for display panel, system for manufacturing display panel and display panel
CN107992237B (en) * 2018-01-31 2019-11-26 武汉华星光电半导体显示技术有限公司 The production method of display panel, the system and display panel for making display panel
CN110722820B (en) * 2019-10-18 2021-10-29 京东方科技集团股份有限公司 Laminating roller, laminating jig and laminating method of flexible screen and bent cover plate
CN111710235B (en) * 2020-04-24 2022-04-08 河北叁迪光学科技有限公司 Inverted curved screen and spraying exposure process method thereof
CN111710234B (en) * 2020-04-24 2022-04-08 河北叁迪光学科技有限公司 Four-side curved screen and spraying process thereof
CN111710236B (en) * 2020-04-24 2022-04-08 河北叁迪光学科技有限公司 U-shaped surrounding curved screen and spraying exposure method thereof
KR102538951B1 (en) * 2021-08-11 2023-05-31 주식회사엘디전자 OCA Film Laminating Apparatus for Automobile Curved Display

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101927801B1 (en) 2018-06-27 2019-02-26 주식회사 인스풀 Apparatus for attaching curved display and method for attaching curved display

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