KR101809991B1 - 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
KR101809991B1
KR101809991B1 KR1020160012100A KR20160012100A KR101809991B1 KR 101809991 B1 KR101809991 B1 KR 101809991B1 KR 1020160012100 A KR1020160012100 A KR 1020160012100A KR 20160012100 A KR20160012100 A KR 20160012100A KR 101809991 B1 KR101809991 B1 KR 101809991B1
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KR
South Korea
Prior art keywords
flexible panel
window glass
protective film
pressing
curved window
Prior art date
Application number
KR1020160012100A
Other languages
Korean (ko)
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KR20170091287A (en
Inventor
안성룡
Original Assignee
안성룡
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Publication date
Application filed by 안성룡 filed Critical 안성룡
Priority to KR1020160012100A priority Critical patent/KR101809991B1/en
Publication of KR20170091287A publication Critical patent/KR20170091287A/en
Application granted granted Critical
Publication of KR101809991B1 publication Critical patent/KR101809991B1/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • 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
    • H01L51/0097—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
    • B32B2457/208—Touch screens

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Human Computer Interaction (AREA)
  • Joining Of Glass To Other Materials (AREA)

Abstract

The present invention relates to a flexible panel in which a flexible material is attached to a slope curved window glass, and a lower protective film is attached to the lower surface of the flexible panel so as to be exposed to the outside, And sequentially pressing the flexible panel from the central portion to the outer portion to sequentially apply the same pressure to all the surfaces of the sloping curved window glass so as to have a uniform uniformity of spacing on the sloped curved window glass, The present invention relates to a method for attaching a flexible panel surface to a surface of a flexible panel which can be adhered even under an atmospheric pressure environment because no bubbles are generated in the surface of the flexible panel. (1) of the flexible panel (1) Attaching a lower protective film (2) so that the protective film (2) is exposed to the outside; 2) mounting the slope curved window glass 3 so that the mounting surface is exposed downward; 3) gripping the lower protective film 2 at two or more opposite positions facing the portion exposed to the outside of the flexible panel 1, thereby moving the flexible panel 1 to the slope curved window glass 3) lower side mounting; 4) In the lower part of the flexible panel 1, the central part of the flexible panel 1 is deformed upward convexly to come into contact first with the slope curved window glass 3, And sequentially pressing the edge portion and the edge portion of 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 sloping curved window glass, A flexible panel having a corner portion cut out by using a protective film is held and sequentially pressed from a central portion to an outer portion of the flexible panel to sequentially apply the same pressure to all the surfaces of the sloped curved window glass, The present invention relates to a method for attaching a flexible panel surface to a glass substrate, wherein the glass substrate is bonded to the glass substrate so as to have uniform uniformity of spacing,

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 slope curved window glass 3 having a shape as shown in Fig. 1 is mainly used for a display device including a mobile phone and a device using a touch screen parcel did. Here, the 'slope curved window glass (3)' refers to a window glass having a shape in which all the slopes of the rectangular window glass are bent in a curved shape. In this case, it is difficult to apply a uniform pressure to all the surfaces due to a large deformation of the flexible material during the attaching process, and it is very difficult to attach the flexible material without bending at the corner portions where the curved surfaces meet.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a method for manufacturing a flexible window glass, which comprises attaching a flexible material to an oblique curved window glass, The incised flexible panel is gripped and sequentially pressed from the central portion of the flexible panel to the outer portion to sequentially apply the same pressure to all the surfaces of the sloped curved window glass to provide a uniform gap uniformity to the sloped curved window glass The present invention also provides a method of attaching a flexible panel surface to a surface of a flexible panel.

According to an aspect of the present invention, there is provided a method for attaching a flexible panel to a surface of a flexible panel, the method comprising the steps of: (1) forming a protective film on the outer side of each side of the flexible panel, Attaching the lower protective film (2) so that the lower protective film (2) is exposed; 2) mounting the slope curved window glass 3 so that the mounting surface is exposed downward; 3) gripping the lower protective film 2 at two or more opposite positions facing the portion exposed to the outside of the flexible panel 1, thereby moving the flexible panel 1 to the slope curved window glass 3) lower side mounting; 4) In the lower part of the flexible panel 1, the central part of the flexible panel 1 is deformed upward convexly to come into contact first with the slope curved window glass 3, And sequentially pressing the edge portion and the edge portion of 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 present invention, in the step 4), the step 4) comprises: c) pressing the flexible panel 1 in the direction of the window glass 3 from the central part of the flexible panel 1 by using the balloon-shaped first pressing member 30, ; d) sequentially moving the balloon-shaped first pressing member (30) upward and successively pressing the contact area in such a manner that the contact area is enlarged in both side edges of the flexible panel; e) pressing the unattached edges of the flexible panel using a balloon-shaped second pressing member; f) pressing the corner portion of the flexible panel using a balloon-shaped third pressing member.

Also, in the step 1) of the present invention, it is preferable that the lower protective film 2 is attached to the flexible panel 1 so as to be exposed through the remaining surface except the surface on which the driving circuit unit 5 is mounted.

Further, in the step 1) of the present invention, it is preferable that the lower protective film 2 is attached in a shape in which the edge of the flexible panel 1 is cut.

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 in order from the center to the outward direction in order to prevent bubbles from being generated, It is possible to achieve a remarkable effect that a uniform pressure can be applied to all portions of the glass to attach the flexible material to the curved window glass while maintaining the uniformity of the gap.

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 slope curved window glass.
2 is a view showing a state in which the corner portion of the flexible panel is cut.
3 to 5 are views showing various states in which a lower protective film is attached to a flexible panel.
6 to 10 are diagrams showing respective steps of a flexible panel surface bonding method according to an embodiment of the present invention.
FIGS. 11 and 12 are views showing respective steps of a flexible panel surface bonding method according to another embodiment of the present invention.
FIGS. 13 to 15 are views showing respective steps of a flexible panel surface bonding method according to another embodiment of the present invention.
16 is a view showing a process of attaching corner portions in 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 the present embodiment, the flexible panel 1 may be a flexible display panel such as an OLED panel, or may be a simple film such as an OCA film. In general, the lower protective film 2 may be a protective film used for protecting a display panel or the like, and may have a higher tensile strength than a conventional protective film.

Here, the edge portion of the flexible panel 1 has an incised shape m as shown in Fig. The reason why the corner portion is cut is to prevent the corner portions from overlapping in the process of attaching the flexible panel to the slope curved window glass 3. Therefore, when the incised portion m of the flexible panel 1 is brought into contact with the incised portion, the flexible panel 1 is attached to the front surface of the inclined curved window glass 3 without overlapping portions. The depth at which the incised portion m is formed extends from the flexible panel to the portion 1a that is adhered to the planar portion of the window glass and extends across the portion 1b bonded to the curved portion .

In this case, when the flexible panel 1 is a rectangular display panel, the lower protective film 2 is folded in the opposite direction of the other surface directions except the surface on which the drive circuit unit 5 is provided, The protection film 2a may be exposed so as to be exposed to the outside of the panel 1 or may be attached in such a manner that the protective film 2a is exposed in all four directions of the flexible panel 1 as shown in FIG. 5) The installation direction may be attached as an incised shape (m).

On the other hand, when the flexible panel 1a is a simple sheet or a simple film structure such as an OCA film, the lower protective film 2b is attached so as to be exposed in all directions of the flexible panel 1a as shown in FIG. It is possible. Also in this case, a cutting portion m is formed at the corner of the flexible panel and the lower film.

Of course, in the present embodiment, the lower protective film 2 may not be attached as a separate process, and the lower protective film 2 attached during the product wearing process may be used without being 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. 5, 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.

6, 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 on the curved surface window 1, The step of mounting the lower part of the glass 3 is proceeded. That is, the grip portion 20 is used to rigidly grip the portions of the lower protective film 2 that are exposed to the outside at three or more positions and mount the lower protective film 2 on the lower side of the window glass 3. By gripping the lower protective film 2 instead of the flexible display panel in this way, it is preferable that the display panel or the OCA film or the like is scarcely 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.

7, a central portion of the flexible panel 1 is convexly deformed upward from the lower side of the flexible panel 1, and is first contacted 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 urging member 30 may have a roller shape as shown in FIG. 7 and may be made of a balloon pressing member 60 having a stretchability, as shown in FIG.

Next, as shown in FIGS. 8 and 9, the flexible panel 1 is sequentially moved outward from the center portion so that the adhesive area is enlarged outward in a state where the central portion of the flexible panel 1 is in contact first 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 Figs. 8 to 10, there are a method of attaching left and right sides alternately and a method of attaching left and right sides simultaneously as shown in Figs.

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. 8, 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. 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 not deformed to a larger curvature as shown in FIG. 9, .

10, 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.

After the central part and the edge part of the flexible panel are joined together, the corner part can be attached by using a separate balloon type pressing member.

On the other hand, as shown in Figs. 11 and 12, it is also possible to attach the left and right sides of the flexible panel 1 at the same time by using the two pressure rollers 40 and 50. In this case, as shown in Fig. 11, 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).

13 to 15, when the balloon-like pressing member 60 is used, the balloon-like pressing member 60 is used to move from the central portion of the flexible panel 1 to the window glass 3 And sequentially pressurizing the contact area in such a manner as to enlarge the contact area in the outward direction. By sequentially pressing the flexible panel 1 using the balloon pressing member 60, not only a uniform pressure can be applied to all of the curved surface areas but also bubbles are generated in the cementing area by the sequential pressing There is an advantage that the possibility is excluded from the source. As shown in FIGS. 13 to 15, the guide member 70 and the up-and-down driving unit 80 may be further provided for precisely driving the balloon-shaped pressing member 60. FIG.

On the other hand, the balloon pressure member may be divided into three balloon pressure members, so that the balloon pressure member can be independently driven and then the cementing operation can be performed. In this case, first, the central portion and the opposing side edge portions of the flexible panel are pressed and attached by using the first pressing member having a balloon shape. Then, the remaining edge portions of the flexible panel that are not bonded together by using the balloon-shaped second pressing member are pressed and attached. Finally, by using the balloon-shaped third pressing member, the corners of the flexible panel are pressed and joined together to complete the cementing work.

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 4: combination resin
10: mounting jig 20: gripping means
30: intermediate pressing member 40: pressure roller
50: pressure roller 60: balloon pressure member

Claims (5)

1) In the same manner as in the case of the flexible panel 1, the corner portion is cut so that the protective film 2 is exposed to the outside of the sides of the flexible panel 1 on the lower surface of the rectangular flexible panel 1 having the corner portions cut out Attaching the lower protective film (2);
2) mounting the slope curved window glass 3 so that the mounting surface is exposed downward;
3) gripping the lower protective film 2 at two or more opposite positions facing the portion exposed to the outside of the flexible panel 1, thereby moving the flexible panel 1 to the slope curved window glass 3) lower side mounting;
4) In the lower part of the flexible panel 1, the central part of the flexible panel 1 is deformed upward convexly to come into contact first with the slope curved window glass 3, And sequentially pressing the edge portion and the edge portion of the flexible panel (1). The method of claim 1, wherein the step (4)
a) pressing the flexible panel 1 from the lower side to the upper side using the central pressing member 30 such that the central portion of the flexible panel 1 first contacts the central portion of the curved window glass 3; ;
b) pressing the flexible panel (1) sequentially in the outward direction from the center portion with the use of the pressure rollers (40, 50) so that the adhesive area is enlarged outward in the state where the central portion of the flexible panel (1) Wherein the step of attaching the flexible panel comprises the steps of: The method of claim 1, wherein the step (4)
c) pressing and contacting the center of the flexible panel (1) in the direction of the window glass (3) using the balloon first pressing member (30);
d) sequentially moving the balloon-shaped first pressing member (30) upward and successively pressing the contact area in such a manner that the contact area is enlarged in both side edges of the flexible panel;
e) pressing the unattached edges of the flexible panel using a balloon-shaped second pressing member;
f) pressing a corner portion of the flexible panel using a balloon-shaped third pressing member. 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 surfaces except the surface on which the drive circuit unit (5) is mounted. The method according to claim 1, wherein in the step (1)
Wherein the lower protective film (2) is adhered to the flexible panel (1) in an edge-cut shape.
KR1020160012100A 2016-02-01 2016-02-01 The method for attaching a flexible panel to the curved window glass KR101809991B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020160012100A KR101809991B1 (en) 2016-02-01 2016-02-01 The method for attaching a flexible panel to the curved window glass

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020160012100A KR101809991B1 (en) 2016-02-01 2016-02-01 The method for attaching a flexible panel to the curved window glass

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KR20170091287A KR20170091287A (en) 2017-08-09
KR101809991B1 true KR101809991B1 (en) 2017-12-18

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Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102471022B1 (en) 2018-01-25 2022-11-25 삼성디스플레이 주식회사 Pad and bonding method for bonding a film using the same
KR102429347B1 (en) * 2018-04-03 2022-08-04 삼성전자주식회사 Protective film attachable to electronic device and protective film package comprising the same
CN108597375B (en) * 2018-04-20 2020-10-27 广州国显科技有限公司 Method for attaching special-shaped curved surface cover plate to flexible screen
KR102494763B1 (en) * 2018-05-11 2023-02-02 삼성디스플레이 주식회사 Bonding device and method of bonding display device using the same
KR102609286B1 (en) * 2018-09-21 2023-12-04 삼성디스플레이 주식회사 Protection film for window of display device
KR102596166B1 (en) * 2018-11-07 2023-10-31 주식회사 톱텍 Attaching method between window having curved slope and panel
KR102639429B1 (en) 2019-07-12 2024-02-23 삼성디스플레이 주식회사 Display device and manufacturing method of the same
KR102169887B1 (en) * 2019-07-25 2020-10-26 동우 화인켐 주식회사 Touch Sensor, Window Laminate and Image Display Device therewith
CN110853518A (en) 2019-11-21 2020-02-28 京东方科技集团股份有限公司 Display substrate, preparation method thereof and display panel
CN110992831B (en) * 2019-12-13 2021-06-29 华为技术有限公司 Flexible display panel and electronic equipment
WO2021225971A1 (en) * 2020-05-08 2021-11-11 Apple Inc. Cut and folded display with 3d compound curvature
CN114512053A (en) * 2020-11-16 2022-05-17 杰宜斯科技有限公司 Bonding device for display
CN112382202B (en) * 2020-11-23 2022-04-26 武汉天马微电子有限公司 Profiling appliance and profiling device
US20230061339A1 (en) * 2021-03-23 2023-03-02 Chengdu Boe Optoelectronics Technology Co., Ltd. Display substrate and display panel
KR102538951B1 (en) * 2021-08-11 2023-05-31 주식회사엘디전자 OCA Film Laminating Apparatus for Automobile Curved Display

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