CN115064077B - Display device and attaching method thereof - Google Patents
Display device and attaching method thereof Download PDFInfo
- Publication number
- CN115064077B CN115064077B CN202210778799.1A CN202210778799A CN115064077B CN 115064077 B CN115064077 B CN 115064077B CN 202210778799 A CN202210778799 A CN 202210778799A CN 115064077 B CN115064077 B CN 115064077B
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- bearing plate
- display panel
- flexible display
- film
- display device
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- 238000000034 method Methods 0.000 title claims abstract description 48
- 239000007788 liquid Substances 0.000 claims abstract description 46
- 239000003292 glue Substances 0.000 claims abstract description 39
- 238000003825 pressing Methods 0.000 claims abstract description 11
- 239000000853 adhesive Substances 0.000 claims abstract description 10
- 230000001070 adhesive effect Effects 0.000 claims abstract description 10
- 238000001723 curing Methods 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000001029 thermal curing Methods 0.000 claims description 2
- 239000004568 cement Substances 0.000 description 9
- 239000012528 membrane Substances 0.000 description 6
- 206010040844 Skin exfoliation Diseases 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Classifications
-
- 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
Landscapes
- 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 application provides a display device and an attaching method thereof, wherein the attaching method of the display device comprises the following steps: providing a first bearing plate; a backboard film is arranged on the first bearing plate; a liquid adhesive is arranged on one surface of the backboard film far away from the first bearing plate; providing a second bearing plate; a flexible display panel is arranged on one surface of the second bearing plate, which is close to the backboard film; applying pressure to the first bearing plate and/or the second bearing plate so as to enable the backboard film to be attached to the flexible display panel through liquid glue; and removing the first bearing plate and the second bearing plate to obtain the display device. The display device obtained by the attaching method ensures that the flexible display panel cannot shrink or stretch and deform under the stress in the horizontal direction, and the binding yield of the display device is effectively improved.
Description
Technical Field
The application relates to the technical field of display, in particular to a display device and an attaching method thereof.
Background
Referring to fig. 1 and 2, the conventional attaching method of the display device generally includes: irradiating the glass substrate with laser light so that a Back Plate Film 020 is peeled off from the glass substrate; then, the back sheet film 020 is attached to the flexible display panel 050 by horizontal movement of the roller 060. Because flexible display panel 050 is soft and easy to deform for flexible display panel 050 can make flexible display panel 050 horizontal direction by tensile when the gyro wheel rolls in the attached process, and the problem that makes flexible display panel 050's edge inwards shrink because of receiving stress influence appears, and distance L or K between the adjacent binding pin on the flexible display panel 050 is unequal, even also binding pin on the flexible display panel 050 wholly distributes unevenly, thereby influences display device's binding precision.
Disclosure of Invention
The application provides a display device and an attaching method thereof, which are used for solving the problem of deformation caused by stretching or shrinking due to the stress of a flexible display panel in the horizontal direction.
The application provides an attaching method of a display device, comprising the following steps:
providing a first bearing plate;
a backboard film is arranged on the first bearing plate;
a liquid adhesive is arranged on one surface of the backboard film far away from the first bearing plate;
providing a second bearing plate;
a flexible display panel is arranged on one surface of the second bearing plate, which is close to the backboard film;
applying pressure to the first bearing plate and/or the second bearing plate so as to enable the backboard film to be attached to the flexible display panel through the liquid adhesive; and
and removing the first bearing plate and the second bearing plate to obtain the display device.
Optionally, in some embodiments of the present application, applying pressure to the first carrier plate and/or the second carrier plate to attach the back plate film to the flexible display panel through the liquid glue includes:
and applying pressure to the first bearing plate and/or the second bearing plate, and curing the liquid glue, wherein the backboard film and the flexible display panel are bonded through the liquid glue.
Optionally, in some embodiments of the present application, the direction of the compressive force is perpendicular to a surface of the back plate film and/or a surface of the flexible display panel.
Optionally, in some embodiments of the present application, in disposing a back plate film on the first carrier plate, the method includes:
the backboard film is adsorbed on the first bearing plate;
in the disposing a flexible display panel on a side of the second carrier plate adjacent to the back plate film, the method includes:
the flexible display panel is adsorbed on one surface of the second bearing plate, which is close to the backboard film.
Alternatively, in some embodiments of the present application, the curing process is for a period of 1 to 10 hours.
Optionally, in some embodiments of the present application, the curing process includes at least one of a heat treatment and an ultraviolet light irradiation treatment.
Optionally, in some embodiments of the present application, pressure is applied to the first carrier plate and/or the second carrier plate, so that the back plate film and the flexible display panel are attached by the liquid glue under vacuum.
Alternatively, in some embodiments of the present application, the liquid gum has a viscosity of 1500-5000 centipoise-seconds.
Optionally, in some embodiments of the present application, the liquid glue is at least one of a shadowless glue and a warm solid glue.
The application also provides a display device, including backplate membrane, liquid glue and flexible display panel, liquid glue with flexible display panel stacks gradually set up in on the backplate membrane.
The application provides a display device and an attaching method thereof, wherein the attaching method comprises the following steps: the attaching method of the display device comprises the following steps: providing a first bearing plate; a backboard film is arranged on the first bearing plate; a liquid adhesive is arranged on one surface of the backboard film far away from the first bearing plate; providing a second bearing plate; a flexible display panel is arranged on one surface of the second bearing plate, which is close to the backboard film; applying pressure to the first bearing plate and/or the second bearing plate so as to enable the backboard film to be attached to the flexible display panel through liquid glue; and removing the first bearing plate and the second bearing plate to obtain the display device. The display device obtained by the attaching method ensures that the flexible display panel cannot shrink or stretch and deform under the stress in the horizontal direction, and the binding yield of the display device is effectively improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flow chart illustrating steps of a method for attaching a display device according to the prior art.
Fig. 2 is a schematic plan view of the flexible display panel of fig. 1.
Fig. 3 is a flowchart illustrating a step of an attaching method of a display device according to an embodiment of the present application.
Fig. 4 to fig. 6 are schematic step flow structures of the attaching method of the display device according to the embodiment of the present application.
Fig. 7 is a schematic structural diagram of a display device according to an embodiment of the present application.
Fig. 8 is a schematic plan view of a flexible display panel according to an embodiment of the present application.
Reference numerals:
a display device 10; a roller 060; a first carrier plate 100; backboard film 200/020; liquid glue 300/030; a second loading plate 400; a flexible display panel 500/050; binding pins 510/051; flip chip film 600/070; printed circuit board 700/080; a first direction Y; a second direction X.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and explanation only and is not intended to limit the present application. In this application, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used to generally refer to the upper and lower positions of the device in actual use or operation, and specifically the orientation of the drawing figures; while "inner" and "outer" are for the outline of the device. In this application, a "reaction" may be a chemical reaction or a physical reaction.
The application provides an attaching method of a display device, comprising the following steps:
b11, providing a first bearing plate.
B12, arranging a backboard film on the first bearing plate.
B13, liquid glue is arranged on one surface of the backboard film far away from the first bearing plate.
B14, providing a second bearing plate.
And B15, arranging a flexible display panel on one surface of the second bearing plate, which is close to the backboard film.
And B16, applying pressure to the first bearing plate and/or the second bearing plate so as to enable the backboard film to be attached to the flexible display panel through liquid glue.
And B17, removing the first bearing plate and the second bearing plate to obtain the display device.
In this application, at the in-process that backplate membrane and flexible display panel attached, because of applying pressure to at least one in the first loading board that is provided with the backplate membrane and the second loading board that is provided with flexible display panel for one in first loading board and the second loading board is perpendicular to be pressed another one, so that the counterpoint of backplate membrane and flexible display panel is attached, the problem that the middle zone of flexible display panel is stretched in the horizontal direction and the marginal area of flexible display panel receives the stress influence and appear inwards shrink in having solved among the prior art because of using the gyro wheel to attach backplate membrane on flexible display panel, the horizontal direction also is the second direction, thereby make binding pin on the flexible display panel wholly distribute evenly, thereby improve display device's binding precision, thereby improve display device's binding yield.
Referring to fig. 3 and fig. 4-6, the application provides a method for attaching a display device 10, which includes:
b11, providing a first bearing plate.
In an embodiment, the first carrying plate has an adsorption function, and can adsorb other structures, so that the film layer can be stripped quickly and simply.
B12, arranging a backboard film on the first bearing plate.
Specifically, the back plate film 200 is disposed on the first carrier plate 100, and the edge of the back plate film 200 is located within the edge of the first carrier plate 100. When the edge of the back plate film 200 is located within the edge of the first carrier plate 100, the first carrier plate 100 can fully support the back plate film 200, so as to avoid the failure problem of the back plate film 200 caused by stretching. The back sheet film 200 serves to protect and support the flexible display panel 500. The material of the back sheet film 200 is polyethylene terephthalate. Alternatively, the material of the back sheet film 200 may be other materials, which is not limited herein.
B13, liquid glue is arranged on one surface of the backboard film far away from the first bearing plate.
Referring to fig. 4, the liquid of the liquid glue 300 is disposed on a surface of the back plate film 200 away from the first carrier plate 100, and the aqueous solution of the liquid glue 300 is leveled and spread over the entire first carrier plate 100.
In one embodiment, the viscosity of the liquid glue 300 is 1500-5000 centipoise-seconds. Specifically, the viscosity of the liquid glue 300 may be 1500 cps, 2000 cps, 3000 cps, 5000 cps, or the like. In the present application, the viscosity of the liquid cement 300 is set within this range, so that the liquid cement 300 has high fluidity and low viscosity, can be rapidly filled on the surface of the back plate film 200, improves the adhesion between the flexible display panel 500 and the back plate film 200, and shortens the period of forming the display device 10.
In one embodiment, the liquid glue 300 is at least one of a UVLight glue (UV glue) and a thermal curing glue. Both shadowless glue (UV glue) and warm setting glue are low viscosity glues. In the present application, at least one of the shadowless glue and the warm solid glue is used to bond the back sheet film 200 and the flexible display panel 500, so that the adhesion between the back sheet film 200 and the flexible display panel 500 is enhanced, and the risk of peeling between the back sheet film 200 and the flexible display panel 500 is reduced.
The term "thermosetting adhesive" refers to an adhesive that can be cured at a certain temperature.
B14, providing a second bearing plate.
And B15, arranging a flexible display panel on one surface of the second bearing plate, which is close to the backboard film.
Referring to fig. 5 and 8, in particular, a plurality of bonding pins 510 are disposed on the flexible display panel 500. The distance d between the bonding pins 510 of every two adjacent rows of the flexible display panel 500 is equal. The distance r between any two binding pins 510 in each row is equal.
In one embodiment, the flexible display panel 500 includes an array substrate and a light emitting structure layer disposed on the array substrate. The flexible display panel 500 may be an organic light emitting diode display panel. Alternatively, the flexible display panel 500 may include other display panels, without limitation.
In one embodiment, the flexible display panel 500 is adsorbed on the surface of the second carrier plate 400 near the back plate film 200, so that the subsequent peeling can be performed quickly and easily.
And B16, applying pressure to the first bearing plate and/or the second bearing plate so as to enable the backboard film to be attached to the flexible display panel through liquid glue.
Referring to fig. 6, specifically, the first carrier plate 100 provided with the back plate film 200 and the second carrier plate 400 provided with the flexible display panel 500 are placed in vacuum, a pressure is applied to the first carrier plate 100 provided with the back plate film 200, the direction of the pressure is perpendicular to the back plate film 200 and/or the flexible display panel 500, that is, the direction of the pressure is the first direction Y, so that the first carrier plate 100 presses the second carrier plate 400 provided with the flexible display panel 500 along the first direction Y, and the curing treatment is performed on the liquid glue 300, and the back plate film 200 and the flexible display panel 500 are bonded by the liquid glue 300.
In the present application, the liquid cement 300 is cured so that the liquid cement 300 can be rapidly cured while improving the adhesion between the back sheet film 200 and the flexible display panel 500.
In another embodiment, a pressure is applied to the second carrier plate 400 provided with the flexible display panel 500 in the first direction Y, so that the first carrier plate 100 provided with the back plate film 200 is pressed toward the second carrier plate 100 in the first direction Y.
In another embodiment, pressure may be applied to both the second carrier sheet 400 provided with the flexible display panel 500 and the first carrier sheet 100 provided with the back sheet film 200.
In another embodiment, the back plate film 200 and the flexible display panel 500 may not be attached under vacuum.
In one embodiment, the curing process is for a period of 1 to 10 hours. Specifically, the curing treatment time may be 1 hour, 3 hours, 8 hours, 10 hours, or the like. In the present application, the time of the curing process is set within this range so that the liquid cement 300 may bond the back sheet film 200 and the flexible display panel 500 without damage to the liquid cement 300, thereby further reducing the risk of peeling between the back sheet film 200 and the flexible display panel 500.
In one embodiment, the curing process includes at least one of a heat treatment and an ultraviolet light irradiation treatment.
In one embodiment, the curing process is a heat process. The curing treatment temperature is 20-130 ℃. The curing process temperature is 20 degrees celsius, 50 degrees celsius, 80 degrees celsius, 100 degrees celsius, 130 degrees celsius, or the like. In the present application, the curing process is a heat process, and the temperature of the curing process is set within this range, so that the liquid cement 300 may bond the back plate film 200 and the flexible display panel 500, and at the same time, the liquid cement 300 may not be damaged, thereby further reducing the risk of peeling between the back plate film 200 and the flexible display panel 500.
And B17, removing the first bearing plate and the second bearing plate to obtain the display device.
Specifically, the first carrier plate 100 and the second carrier plate 400 are removed, and the vacuum is removed, so as to complete the attachment of the display device 10, thereby obtaining the display device 10. At this time, on the flexible display panel 500, the distance d between the bonding pins 510 of each two adjacent rows of the display panel is still equal, and the distance r between any two bonding pins 510 in each row is still equal. That is, the display device 10 is formed by adopting the attaching method, it is able to avoid that the flexible display panel 500 stretches or contracts in the horizontal direction, that is, the second direction X, so that the flexible display panel 500 deforms, and the binding pins 510 on the flexible display panel 500 are uniformly distributed integrally, thereby improving the binding precision and the binding yield.
In one embodiment, after B17, further comprising:
providing a flip chip film 600 and a printed circuit board 700, binding and connecting the printed circuit board 700 with the flexible display panel 500 through the flip chip film 600, wherein a plurality of binding pins 510 are arranged on one side of the flip chip film 600 away from the printed circuit board 700, and each binding pin 510 of the flip chip film 600 is in binding connection with one binding pin 510 of the display panel.
With continued reference to fig. 7 and 8, the present application further provides a display device 10 formed by the attaching method of the display device 10 provided by the present application. The display device 10 includes a back sheet film 200, a liquid cement 300, and a flexible display panel 500. The liquid crystal 300 and the flexible display panel 500 are sequentially laminated on the back sheet film 200. The flexible display panel 500 has a plurality of bonding pins 510. The distance r between every two adjacent bonding pins 510 of each row is equal. The distance d between every two adjacent rows of bonding pins 510 is also equal.
In the attaching process of the back plate film 200 and the flexible display panel 500, at least one of the first bearing plate 100 provided with the back plate film 200 and the second bearing plate 400 provided with the flexible display panel 500 is pressed, so that one of the first bearing plate 100 and the second bearing plate 400 is pressed towards the other along the first direction Y, that is, one of the first bearing plate 100 and the second bearing plate 400 is vertically pressed towards the other, so that the back plate film 200 and the flexible display panel 500 are attached in alignment, and the problem that in the prior art, the middle area of the flexible display panel 050 is stretched in the horizontal direction and the edge area of the flexible display panel 050 is affected by stress to shrink inwards is solved, so that the binding pins 510 on the flexible display panel 500 are uniformly distributed, the binding precision of the display device 10 is improved, and the binding yield of the display device 10 is improved.
The foregoing has described in detail a display device and an attaching method thereof provided in the embodiments of the present application, and specific examples have been applied herein to illustrate the principles and embodiments of the present application, where the foregoing examples are only for aiding in understanding the method of the present application and the core idea thereof; meanwhile, those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present application, and the present description should not be construed as limiting the present application in view of the above.
Claims (9)
1. A method of attaching a display device, comprising:
providing a first bearing plate;
a backboard film is arranged on the first bearing plate;
a liquid adhesive is arranged on one surface of the backboard film far away from the first bearing plate;
providing a second bearing plate;
a flexible display panel is arranged on one surface of the second bearing plate, which is close to the backboard film;
binding pins are arranged on the flexible display panel and used for binding the printed circuit board through the flip chip film;
applying pressure to the first bearing plate and/or the second bearing plate, wherein the direction of the pressure is perpendicular to the surface of the backboard film and/or the surface of the flexible display panel, so that the backboard film and the flexible display panel are attached through the liquid adhesive; and
and removing the first bearing plate and the second bearing plate to obtain the display device.
2. The method according to claim 1, wherein applying pressure to the first carrier plate and/or the second carrier plate to attach the back sheet film to the flexible display panel by the liquid adhesive comprises:
and applying pressure to the first bearing plate and/or the second bearing plate, and curing the liquid glue, wherein the backboard film and the flexible display panel are bonded through the liquid glue.
3. The method of attaching a display device according to claim 1, wherein disposing a back sheet film on the first carrier sheet comprises:
the backboard film is adsorbed on the first bearing plate;
in the disposing a flexible display panel on a side of the second carrier plate adjacent to the back plate film, the method includes:
the flexible display panel is adsorbed on one surface of the second bearing plate, which is close to the backboard film.
4. The method of attaching a display device according to claim 2, wherein the time of the curing treatment is 1 to 10 hours.
5. The method for attaching a display device according to claim 4, wherein the curing treatment includes at least one of a heat treatment and an ultraviolet light irradiation treatment.
6. The attaching method of a display device according to claim 1, wherein pressure is applied to the first carrier plate and/or the second carrier plate to attach the back sheet film to the flexible display panel under vacuum through the liquid adhesive.
7. The method of attaching a display device according to any one of claims 1 to 6, wherein the viscosity of the liquid paste is 1500 to 5000 cps.
8. The method of claim 7, wherein the liquid glue is at least one of a shadowless glue and a thermal curing glue.
9. A display device manufactured by the attachment method of the display device according to any one of claims 1 to 8, comprising a back plate film, a liquid glue and a flexible display panel, wherein the liquid glue and the flexible display panel are sequentially laminated on the back plate film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210778799.1A CN115064077B (en) | 2022-06-30 | 2022-06-30 | Display device and attaching method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210778799.1A CN115064077B (en) | 2022-06-30 | 2022-06-30 | Display device and attaching method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115064077A CN115064077A (en) | 2022-09-16 |
| CN115064077B true CN115064077B (en) | 2023-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210778799.1A Active CN115064077B (en) | 2022-06-30 | 2022-06-30 | Display device and attaching method thereof |
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| CN (1) | CN115064077B (en) |
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| CN113920875A (en) * | 2021-10-18 | 2022-01-11 | 京东方科技集团股份有限公司 | Attaching jig |
| KR20220029029A (en) * | 2020-09-01 | 2022-03-08 | 엘지전자 주식회사 | Display bongding apparatus and controlling method of the same |
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| CN104385757A (en) * | 2014-12-12 | 2015-03-04 | 合肥鑫晟光电科技有限公司 | Lamination device and corresponding lamination method |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN115064077A (en) | 2022-09-16 |
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