CN109036138B - Flexible display screen attaching method and back plate - Google Patents
Flexible display screen attaching method and back plate Download PDFInfo
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- CN109036138B CN109036138B CN201810948265.2A CN201810948265A CN109036138B CN 109036138 B CN109036138 B CN 109036138B CN 201810948265 A CN201810948265 A CN 201810948265A CN 109036138 B CN109036138 B CN 109036138B
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- adhesive
- flexible display
- display screen
- back plate
- supporting part
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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
Abstract
The application discloses a flexible display screen laminating method and a back plate. The attaching method comprises the following steps: providing a flexible display screen with a bending area; providing a back plate, wherein the back plate comprises a first supporting part, a second supporting part and a connecting part, and the connecting part is connected with the first supporting part and the second supporting part; placing the back plate on the flexible display screen and overlapping the connecting part with the bending area; rolling the back plate to enable the back plate to be attached to the flexible display screen; and removing the connecting part. Based on this, this application can be favorable to avoiding the flexible display screen to produce the bubble when laminating with the backplate.
Description
Technical Field
The application relates to the field of display, in particular to the field of packaging of flexible display screens, and particularly relates to a laminating method and a back plate of a flexible display screen.
Background
With the development of display technology, flexible display screens are increasingly popular with people. The flexible display screen has the advantages of being lighter and thinner, bendable, good in flexibility and the like, the durability of the flexible display screen is far higher than that of a traditional display panel, and the probability of accidental damage of the display device can be reduced. In order to support the flexible display and thus increase the strength of the flexible display, a Back Plate (Back Plate) is generally attached to a flexible substrate of the flexible display. As shown in fig. 1, since the flexible display screen 10 has a Bending (Bending) area 11, and the Bending area 101 cannot be attached to the supporting structure, the current backboard 11 is segmented, that is, the backboard 11 is provided with a hollow area 111, the hollow area 111 divides the backboard 11 into a first supporting portion 112 and a second supporting portion 113 which are arranged at an interval, and the hollow area 111 is used for overlapping with the Bending area 101. However, in the attaching process, after the first supporting portion 112 is rolled to attach the first supporting portion 112 to the flexible display 10, in order to avoid crushing the hollow-out area 111, the second supporting portion 113 cannot be rolled forward, that is, the second supporting portion 113 cannot be rolled, which easily causes a large amount of air bubbles to be generated between the second supporting portion 113 and the flexible display 10.
Disclosure of Invention
In view of this, the present application provides a method for attaching a flexible display panel and a back plate, which are beneficial to avoiding bubbles generated when the flexible display panel is attached to the back plate.
The application provides a method for attaching a flexible display screen, which comprises the following steps:
providing a flexible display screen, wherein the flexible display screen is provided with a bending area;
providing a back plate, wherein the back plate comprises a first supporting part, a second supporting part and a connecting part, and the connecting part is connected with the first supporting part and the second supporting part;
placing a back plate on the flexible display screen and enabling the connecting part to be overlapped with the bending area;
rolling the back plate to enable the back plate to be attached to the flexible display screen;
and removing the connecting part of the back plate.
The utility model provides a backplate for laminate with flexible display screen, the backplate includes first supporting part, second supporting part and connecting portion, connecting portion connect first supporting part and second supporting part, first supporting part and second supporting part be used for with the flexible display screen laminating, connecting portion are used for first supporting part and second supporting part with the in-process of flexible display screen laminating with the bending region of flexible display screen overlaps, and first supporting part and second supporting part with get rid of after the flexible display screen laminating.
Has the advantages that: this application sets up connecting portion between the first supporting part and the second supporting part of backplate, fills the fretwork district of backplate through connecting portion, and whole backplate all can carry out the roll-in to bubble production when can be favorable to avoiding flexible display screen and backplate laminating.
Drawings
FIG. 1 is a schematic view of a flexible display screen and a back plate according to an embodiment of the prior art;
FIG. 2 is a schematic flowchart of an embodiment of a method for attaching a flexible display panel according to the present application;
FIG. 3 is a schematic structural diagram of a backplate according to an embodiment of the present application;
fig. 4 is a schematic view of a scene of attaching the flexible display screen based on the method shown in fig. 2.
Detailed Description
The technical solutions of the various exemplary embodiments provided in the present application are clearly and completely described below with reference to the drawings in the embodiments of the present application. The various embodiments described below and the features of the embodiments can be combined with each other without conflict. Furthermore, directional terms such as "upper" and "lower" are used throughout the present application to better describe the technical solutions of the embodiments, and are not used to limit the protection scope of the present application.
Fig. 2 is a schematic flow chart of an embodiment of a method for attaching a flexible display screen according to the present application. As shown in fig. 2, the bonding method includes the following steps S21 to S25.
S21: providing a flexible display screen, wherein the flexible display screen is provided with a bending area.
Referring to fig. 4, the flexible display 40 is provided with a bending region 41, and the flexible display 40 can be bent or bent along the bending region 41. The flexible display screen 40 is not limited in the present application, and may be an AMOLED (Active-matrix light emitting diode) display panel, an OLED (Organic light emitting diode) panel, a liquid crystal display panel, or the like. In addition, the flexible display 40 may use a PI (Polyimide) flexible substrate.
S22: providing a backboard, wherein the backboard comprises a first supporting part, a second supporting part and a connecting part, and the connecting part is connected with the first supporting part and the second supporting part.
As shown in fig. 3, the back plate 30 includes a first supporting portion 31, a second supporting portion 32, and a connecting portion 33, and the connecting portion 33 connects the first supporting portion 31 and the second supporting portion 32. As shown in fig. 1 and fig. 3, the connecting portion 33 is equivalent to filling up the hollow area 111 of the conventional back plate 11, and the back plate 30 of the present application can be regarded as a whole structure.
A first adhesive 341 and an optical adhesive 342 are disposed on a side of the back plate 30 facing the flexible display screen 40, and the first adhesive 341 is disposed to overlap the connecting portion 33 when the first adhesive 341 is attached. The optical adhesive 342 and the first adhesive 341 are disposed in the same layer, and the upper surfaces of the two are flush.
Further, in order to ensure the performance of the first adhesive 341 and the optical adhesive 342, the back sheet 30 may attach a protective film 343 on the surfaces of the first adhesive 341 and the optical adhesive 342.
S23: and placing the back plate on the flexible display screen and enabling the connecting part to be overlapped with the bending area.
Referring to fig. 4, the protective film 343 is torn off, the flexible display 40 is placed on the supporting platform 50, the back plate 30 may be placed on a side of the flexible display 40 facing away from the display area, that is, the back plate 30 is placed behind the flexible display 40, and after the back plate is placed, the connecting portion 33, the first adhesive 341 and the bending area 41 of the flexible display 40 are overlapped up and down.
S24: and rolling the back plate to enable the back plate to be attached to the flexible display screen.
Along the direction that thick line arrow shows in fig. 4, this application can adopt the running roller at first to carry out the roll-in to first supporting part 31 of backplate 30, makes first supporting part 31 laminate in flexible display screen 40 through optical cement 342, it is right again connecting portion 33 rolls in, the running roller is rolling behind connecting portion 33, continues to roll in second supporting part 32 to this makes second supporting part 32 laminate in through optical cement 342 on flexible display screen 40, the roll-in is located gas between the two when can discharging second supporting part 32 and the laminating of flexible display screen 40, with this bubble when being favorable to avoiding flexible display screen 40 and backplate 30 to laminate.
S25: and removing the connecting part of the back plate.
The bending region 41 of the flexible display screen 40 can be heated, so that the first adhesive 341 is softened by heating, that is, the first adhesive 341 can be regarded as a thermoplastic adhesive, and the thermoplastic adhesive can be softened in a heating state and is easy to tear off. The first adhesive 341 is peeled off and the connecting portion 33 is bonded to the first adhesive 341, and both are removed. Here, the bending region 41 of the flexible display 40 is still exposed, and the flexible display 40 can be bent or bent along the bending region 41 after being attached.
Based on the above characteristics, the material of the first binder 341 includes, but is not limited to, at least one of polyvinyl acetate, polyvinyl acetal, ethylene-vinyl acetate copolymer resin, vinyl chloride-vinyl acetate copolymer resin, perchloro-vinyl resin, polyacrylate, polyamide, and polysulfone.
Referring to fig. 3 and 4, the connecting portion 33, the first supporting portion 31 and the second supporting portion 32 may be made of the same material, for example, the three portions may be made of a silicon material. Here, the above-mentioned laminating process is not influenced or is influenced a little by the elastic variables of the three, because: if the three parts are made of different materials, the elastic variables of the three parts are different, which causes the gap between the adjacent two parts to be enlarged or wrinkles to be generated, specifically, when the elastic variable coefficients of the first supporting part 31 and the second supporting part 32 are greater than the elastic variable coefficient of the connecting part 33, the elastic variables of the first supporting part 31 and the second supporting part 32 are less than the elastic variable of the connecting part 33 in the attaching process, which easily causes wrinkles between the adjacent two parts, that is, wrinkles appear on the back plate 30, thereby easily causing the risk of bubbles appearing in the subsequent attaching process to be high; when the elastic variable coefficients of the first supporting portion 31 and the second supporting portion 32 are smaller than the elastic variable coefficient of the connecting portion 33, the elastic variable of the first supporting portion 31 and the second supporting portion 32 is larger than the elastic variable of the connecting portion 33 during the attaching process, which easily causes the gap between the adjacent two portions to be enlarged, and also easily causes bubbles to appear during the subsequent attaching process.
Referring to fig. 3 and 4, a second adhesive 351 and an optical adhesive 352 are further disposed on a side of the back plate 30 facing away from the flexible display screen 40, the second adhesive 351 and the connecting portion 33 are at least partially overlapped when the back plate is attached (for example, the second adhesive 351 and the connecting portion are completely overlapped up and down as shown in fig. 4), the second adhesive 351 and the first adhesive 341 may be made of the same material and are both thermoplastic adhesives, and the optical adhesive 352 and the second adhesive 351 are disposed in the same layer, and upper surfaces of the two may be flush.
In the step S35, the second adhesive 351 and the first adhesive 341 are softened and adhered to the two sides of the connection portion 33, and the first adhesive 341 and the connection portion 33 are removed together by tearing off the second adhesive 351.
In order to maintain the performance of the second adhesive 351, the rear plate 30 may be attached with a protective film 353 on the outer surfaces of the second adhesive 351 and the optical glue 352. Before the connection portion 33 is removed, the protective film 353 is torn off.
In summary, the primary objectives of the present application are: set up connecting portion 33 between the first supporting portion 31 and the second supporting portion 32 of backplate, fill the fretwork area of backplate 30 through connecting portion 33, the running roller can roll in second supporting portion 32 through connecting portion 33, rolls in whole backplate 30 promptly to appear the bubble when can avoiding second supporting portion 32 and the laminating of flexible display screen 40, with this bubble when being favorable to avoiding the laminating of flexible display screen 40 and backplate 30.
For the purpose of this disclosure, the above-mentioned embodiments are only examples of the present disclosure, and not intended to limit the scope of the present disclosure, and all equivalent structures or equivalent flow transformations made by the contents of the specification and the drawings, such as the combination of technical features between the embodiments, or the direct or indirect application to other related technical fields, are all included in the scope of the present disclosure.
Claims (6)
1. A method for attaching a flexible display screen, the method comprising:
providing a flexible display screen, wherein the flexible display screen is provided with a bending area;
providing a back plate, wherein the back plate comprises a first supporting part, a second supporting part and a connecting part, the connecting part is connected with the first supporting part and the second supporting part, and the back plate is of a whole-surface structure;
the side, facing the flexible display screen, of the back plate is provided with the same layer of optical glue and a first adhesive, the optical glue is adhered to the back plate and the flexible display screen, and the first adhesive is overlapped with the connecting part;
a second adhesive and an optical adhesive are arranged on one side, back to the flexible display screen, of the back plate, and the second adhesive is overlapped with the connecting part;
placing a back plate provided with a first adhesive and a second adhesive on the flexible display screen and enabling the connecting part to be overlapped with the bending area;
rolling the back plate to enable the back plate to be attached to the flexible display screen, and removing gas between the first supporting part, the second supporting part and the connecting part when the first supporting part, the second supporting part and the connecting part are attached to the flexible display screen;
heating to soften the first adhesive and the second adhesive and respectively adhere the first adhesive and the second adhesive to two sides of the connecting part;
tearing off the second adhesive so that the first adhesive is removed together with the second adhesive and the connecting part.
2. The method of claim 1, wherein the side of the back plate facing away from the flexible display screen is further provided with a protective film, the protective film is attached to the second adhesive,
before removing the connecting part of the back plate, the method further comprises the following steps:
and tearing off the protective film.
3. The method of claim 1, wherein the connecting portion and the first and second support portions are made of the same material.
4. A back plate for attaching to a flexible display screen is characterized in that,
the back plate comprises a first supporting part, a second supporting part and a connecting part, wherein the connecting part is connected with the first supporting part and the second supporting part, and the back plate is of a whole-surface structure;
the side, facing the flexible display screen, of the back plate is provided with the same layer of optical cement and a first adhesive, the optical cement is used for bonding the back plate and the flexible display screen, and the first adhesive is overlapped with the connecting part;
a second adhesive and an optical adhesive are arranged on one side, back to the flexible display screen, of the back plate, and the second adhesive is overlapped with the connecting part in the process of attaching the first supporting part and the second supporting part to the flexible display screen;
the first supporting part and the second supporting part are used for being attached to the flexible display screen, and the connecting part is used for being overlapped with a bending area of the flexible display screen in the process of attaching the first supporting part and the second supporting part to the flexible display screen and being removed after the first supporting part and the second supporting part are attached to the flexible display screen;
wherein the connecting portion is removed after the first and second supporting portions are attached to the flexible display screen, including: heating to soften the first adhesive and the second adhesive and respectively adhere the first adhesive and the second adhesive to two sides of the connecting part;
tearing off the second adhesive so that the first adhesive is removed together with the second adhesive and the connecting part.
5. The back sheet of claim 4, wherein two sides of the back sheet are respectively provided with a protective film, one of the protective films is attached to the second adhesive, and the other protective film is attached to the optical adhesive and the first adhesive.
6. A backboard according to claim 4, wherein the connecting portion and the first and second support portions are made of the same material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810948265.2A CN109036138B (en) | 2018-08-20 | 2018-08-20 | Flexible display screen attaching method and back plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810948265.2A CN109036138B (en) | 2018-08-20 | 2018-08-20 | Flexible display screen attaching method and back plate |
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| Publication Number | Publication Date |
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| CN109036138A CN109036138A (en) | 2018-12-18 |
| CN109036138B true CN109036138B (en) | 2020-11-10 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2020124560A1 (en) * | 2018-12-21 | 2020-06-25 | 深圳市柔宇科技有限公司 | Flexible display device and manufacturing method therefor |
| CN110890480B (en) * | 2019-10-22 | 2022-05-10 | 深圳莱宝高科技股份有限公司 | Attaching structure and attaching method of solid flexible bending product |
| CN110738933A (en) * | 2019-10-25 | 2020-01-31 | Oppo广东移动通信有限公司 | Display screen assembly, manufacturing method thereof and electronic equipment |
| CN112863354B (en) * | 2021-01-22 | 2022-05-31 | 武汉华星光电半导体显示技术有限公司 | Display panel |
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| US10312310B2 (en) * | 2016-01-19 | 2019-06-04 | Diftek Lasers, Inc. | OLED display and method of fabrication thereof |
| CN206003771U (en) * | 2016-07-28 | 2017-03-08 | 上海天马微电子有限公司 | A kind of flexible display apparatus |
| JP2018120087A (en) * | 2017-01-25 | 2018-08-02 | 株式会社ジャパンディスプレイ | Method of manufacturing display device, and display device |
| CN106910428B (en) * | 2017-03-02 | 2019-04-05 | 京东方科技集团股份有限公司 | The production method and flexible display apparatus of bending type flexible base board |
| CN107425142B (en) * | 2017-04-27 | 2019-08-02 | 京东方科技集团股份有限公司 | A kind of preparation method and flexible display apparatus of flexible display apparatus |
| CN107579169B (en) * | 2017-09-01 | 2019-06-04 | 上海天马微电子有限公司 | A kind of flexible display panels and display device |
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